JP2006177656A - Refrigerator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a refrigerator having a drawer, improved in its usability with high quality and small operating force with little rattling, and capable of smoothly taking in and out foods, with respect to the refrigerator comprising a drawer device. <P>SOLUTION: Fixed rails 31a are fixed to both side wall faces of an inner case 20, and moving rails 31b are fixed to each of refrigerating compartment drawer doors, in a state that the fixed rails 31a, the moving rails 31b, intermediate running rails 31c and bearings 31d constituting rail members 31 are incorporated in advance, then a case 32 is retained, and a drawer allowance of drawer doors 29, 30 is determined to be larger than a depth inner dimension of the container 32, when the drawer door is opened in maximum, thus the moving rails 31b can be smoothly moved, the operability of the drawer is improved, the visibility, and mounting and demounting performance of the container 32 are improved, so that the usability of the refrigerator can be improved. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a refrigerator provided with a drawer device, and more particularly to a configuration for attaching a drawer rail.

  In recent years, as the size of refrigerators has increased, the amount of storage tends to increase, and in order to increase the amount of storage and improve usability, those equipped with a drawer device have become mainstream (for example, see Patent Document 1). ).

  Hereinafter, a refrigerator provided with the above-described conventional drawer device will be described with reference to the drawings.

  FIG. 27 is a perspective view of a drawer door of a conventional refrigerator. FIG. 28 is a cross-sectional view of a main part of a conventional refrigerator drawer device. FIG. 29 is a cross-sectional view of a conventional refrigerator drawer device. The refrigerator drawer device 17 of the prior art includes an openable / closable door 1 on the front surface of the refrigerator main body, a frame 2 having one end fixed to the left and right sides of the door, a connecting frame 16 connecting the rear ends, and a rear end of the frame 2. Mounted on the attached movable roller 3, the frame 2 fixed and attached to the inner box side wall 4, the fixed rail 5 and the fixed roller 6 slidably supporting the movable roller 3, the frame 2, and the connecting frame 16. It is composed of a case 15 in the cabinet. Further, the frame side surface 9 is a flat surface, and the groove portion 12 of the fixed rail 5 is also a flat surface.

  And the movable roller 3 attached to the rear end of the frame 2 fixed in advance on the left and right sides of the door rear surface of the door 1 is inserted into the groove portion 12 of the fixed rail 5 attached in advance to the refrigerator main body, and the bottom surface of the frame 2 and the fixed roller 6 is assembled so as to slide in contact therewith.

In the above configuration, when the door 1 is opened and closed, the frame 2 having one end fixed to the door 1, the connecting frame 16 connected to the frame 2, the internal case 15 and the movable roller 3 placed thereon are fixed rails. 5 and the fixed roller 6 are allowed to slide in the front-rear direction synchronized with the door 1.
Japanese Utility Model Publication No. 60-27913

  However, in the conventional refrigerator, since the frame 2 fixed in advance on the left and right sides of the door 1 is incorporated in the fixed rail 5 attached in advance to the refrigerator body side, the mounting variation of the frame 2 or the fixed rail 5 and assemblability are reduced. In consideration of the design, a certain amount of clearance is set between the rail and the roller in the built-in state. Due to this clearance, left and right rattling occurs when the door 1 is opened and closed, and there is a problem that the operability is impaired and the quality during operation is not improved.

  In addition, when this rattling occurs, for example, when a large load is applied to the drawer-type door, an uneven load is generated on the rail centering on this rattling portion, so there is a concern about the deformation of the rail or the mounting surface due to this uneven load. The

  SUMMARY OF THE INVENTION The present invention solves the above-described conventional problems, and an object thereof is to provide a refrigerator having a high quality with little backlash and an easy-to-use drawer with a small operating force even when a load is applied.

  In order to solve the above-described conventional problems, the refrigerator of the present invention includes an inner box, an outer box, and a heat insulating box having a front opening provided with a heat insulating material filled between the inner box and the outer box. A drawer-type storage chamber comprising a body, a container provided inside the heat insulation box, and a door provided on the front side of the container, and a rail member that allows the container to move back and forth, The rail member has a fixed rail provided on the heat insulating box side, a moving rail provided on the door side, an intermediate traveling rail connecting the fixed rail and the moving rail, and the door includes a door. A support member, the moving rail is fixed to the door support member, the container is engaged, and a drawer allowance of the drawer door is set to a depth inside dimension of the container at a maximum open position of the drawer type storage chamber. Is larger than

  This makes it possible to construct a high-quality drawer door with little backlash, and for the purpose of improving the user's convenience, it is a refrigerator equipped with a storage room that can be pulled out to the back. Even when a large load is applied to the drawer-type door compared to a refrigerator with a small amount of freezing, it suppresses the occurrence of unbalanced load on the rail centering around the rattle and reduces the deformation of the rail and mounting surface due to this unbalanced load. It is possible to maximize the upper opening of the container when the drawer door is opened without deteriorating the reliability of the refrigerator, and to improve the food take-out property from the container and the detachability of the container itself.

  The refrigerator of the present invention can maximize the top opening of the container when the drawer door is opened, and can improve the food take-out property from the container and the detachability of the container itself. can do.

  The invention according to claim 1 is a heat insulating box having a front opening provided with an inner box, an outer box, and a heat insulating material filled between the inner box and the outer box, and the heat insulating box. In a drawer-type storage chamber composed of a container provided inside and a door provided on the front side of the container, the container has a rail member that allows the container to move back and forth, and the rail member is the heat insulating box. A fixed rail provided on the side, a moving rail provided on the door side, an intermediate running rail connecting the fixed rail and the moving rail, the door including a door support member, and the door The moving rail is fixed to the support member, the container is engaged, and the drawer door has a drawer allowance larger than the inner depth of the container at the maximum open position of the drawer-type storage chamber. .

  This makes it possible to construct a high-quality drawer door with little backlash, and for the purpose of improving the user's convenience, it is a refrigerator equipped with a storage room that can be pulled out to the back. Even when a large load is applied to the drawer-type door compared to a refrigerator with a small amount of freezing, it suppresses the occurrence of uneven load on the rail centering around the rattle and reduces the deformation of the rail and mounting surface due to this uneven load. The top opening of the container can be maximized when the drawer door is opened without lowering the reliability of the refrigerator, and the food take-out property from the container and the detachability of the container itself can be improved. Therefore, when the drawer door is opened, the top opening of the container can be maximized, and the food removal from the container and the detachability of the container itself can be improved. So, it is possible to provide a good refrigerator easy to use.

  According to a second aspect of the present invention, in the first aspect of the present invention, at the maximum open position of the drawer type storage chamber, the rear surface of the door of the drawer type storage chamber provided with the container and the container are further provided. The depth interval with the front surface of the door immediately above the drawer-type storage chamber provided is larger than the outer depth of the container.

  As a result, the front of the door directly above the drawer-type storage chamber does not protrude above the container, so there is no obstacle when lifting and removing the container upward, and the container is cleaned. It is possible to provide a refrigerator that is extremely easy to use during cleaning.

  The invention according to claim 3 is the invention according to claim 1 or 2, wherein the total length of the moving rail of the rail member is set larger than that of the fixed rail.

  Thereby, the drawer | drawing-out allowance of a moving rail can be enlarged, the storage property of a user's refrigerator can be improved, and a user-friendly refrigerator can be provided.

  According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, the front end portion of the intermediate running rail is located at the maximum open position of the drawer-type storage chamber rather than the rear end portion of the door support member. Is located on the near side.

  In this way, even in a drawer-type storage chamber where the capacity is the largest and the weight during storage is large and a heavy load is applied to the drawer-type door, the door support member and rail member are wrapped in the vertical direction. By devising, the front end of the intermediate running rail, which tends to be the weakest, is connected to the door support member in the vertical direction via the moving rail, so that the strength of the rail member can be greatly improved. Even when a large load is applied to the drawer-type storage chamber, it is possible to prevent deformation and breakage of the door support member and the rail member that connect the door and the heat insulating box. Therefore, the upper surface opening of the container can be maximized when the drawer door is opened without lowering the reliability of the refrigerator, and the food take-out property from the container and the detachability of the container itself can be improved.

  The invention according to claim 5 is the invention according to any one of claims 1 to 4, wherein the door support member and the moving rail are fixed with screws.

  Thereby, a large attachment strength can be obtained, the deformation of the door support member and the rail member can be prevented, and the reliability of the refrigerator can be improved.

  According to a sixth aspect of the present invention, in the fifth aspect of the invention, the door support member and the moving rail are fixed by a plurality of different means, and the fixed portion located on the door side among the plurality of fixed portions is a door support. The member and the moving rail are fixed with screws.

  As a result, when mounting a high-accuracy rail member with a fixed rail and moving rail pre-installed on the heat insulation box, the assembly accuracy is improved and it is located on the door side where the most load resistance is required. In the fixing location, a large attachment strength can be obtained, the deformation of the door support member and the rail member can be prevented, and the reliability of the refrigerator can be improved.

  The invention according to claim 7 is the invention according to any one of claims 1 to 6, wherein the heat insulating box has a plurality of drawer-type storage chambers, and each of the plurality of drawer-type storage chambers has a rail member. The fixed rail of each rail member is position-regulated and fixed by an independent reinforcing member.

  As a result, it is possible to achieve excellent assemblability by reducing the size of the reinforcing member, and it is possible to ensure assembly reliability by restricting the position of each reinforcing member.

  The invention according to claim 8 is the invention according to any one of claims 1 to 7, wherein a small container, which is shallower than the container, is provided on the top of the container, each of which corresponds to the size of the food. Can be stored separately, and usability can be improved.

  The invention according to claim 9 is the invention according to any one of claims 1 to 8, wherein the height of the upper end of the storage room is set to 1000 mm or less from the floor surface, and is below the elbow of the person. Containers can be placed on the food, and food can be put in and out easily.

  The invention according to claim 10 is the invention according to any one of claims 1 to 9, wherein the drawer-type storage chamber is provided with a self-closing means for self-closing the door when the drawer-type storage chamber is closed. The self-closing means is provided on a rail member that can move the drawer-type storage chamber.

  Thereby, by having the self-closing means, the airtightness between the heat insulation box and the door is improved, and a drawer-type storage room can be configured with reduced power consumption and improved operational feeling.

  Further, by providing the rail with the self-closing means, the space for the self-closing means can be minimized and the food storage space can be improved.

  The invention according to claim 11 is the invention according to any one of claims 1 to 10, wherein a lubricant is applied to the sliding portion of the rail member that is movable in the drawer-type storage chamber. .

  This makes it possible to construct a high-quality drawer with less play by improving the lubricity of the sliding part, and smooth even when using rails in a low-temperature environment or when a load is applied to the container Since the moving rail can move, the operation force of the drawer can be reduced, and the usability can be improved.

  The invention according to claim 12 is the invention according to claim 11, wherein the lubricant is applied to the range in which the rotation support member moves, and the smooth movement of the rail member can be obtained reliably.

  The invention according to claim 13 is the invention according to claim 11 or 12, wherein the lubricant is a solid lubricant material, and the lubrication reliability can be ensured over a long period from low temperature to high temperature. Even when used at low temperatures such as refrigerated temperature zones and refrigeration temperature zones, high lubrication reliability can be ensured, and smooth movement of rail members can be reliably obtained in all temperature zones. .

  The invention according to claim 14 is the invention according to any one of claims 1 to 13, wherein a rail member is applied to a storage room in a freezing temperature zone.

  As a result, even in a storage room having a refrigeration temperature zone that has been increasing in capacity in recent years, a high-grade rail member can be provided, and high lubrication reliability can be ensured in a storage room having a refrigeration temperature zone. Thus, smooth movement of the rail member can be obtained reliably in the low temperature zone.

  The invention according to claim 15 is the invention according to any one of claims 1 to 14, wherein the heat insulating box is filled with a foam heat insulating material between the inner box and the outer box, After the heat insulation box is formed by filling with the foam heat insulating material, a rail member is attached to enable movement of the drawer-type storage chamber.

  As a result, when a heat-resistant box body is provided with a high-precision rail member with a small clearance in a state in which a fixed rail, an intermediate rail, and a moving rail are preliminarily incorporated, the temperature rise accompanying the foaming of the heat-insulated box body, contamination of foreign matters, etc. The rail can be provided in the heat insulation box without preventing and reducing the reliability of the highly accurate rail.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present invention is not limited to the embodiments.

(Embodiment 1)
1 is a side sectional view of a refrigerator according to Embodiment 1 of the present invention, FIG. 2 is a sectional view taken along line AA in FIG. 1, FIG. 3 is a schematic assembly diagram of the refrigerator according to the embodiment, and FIG. FIG. 5 is an exploded view of the rail member of the refrigerator of the embodiment, and FIG. 5 is a cross-sectional view of the rail member of the refrigerator of the embodiment.

  1 to FIG. 5, a heat insulating box 19 of a refrigerator 18 is filled with a foam heat insulating material 22 between an inner box 20 and an outer box 21, has a front opening 19a, and partition walls 23, 23a. , 24 form a refrigerator room 25, a switching room 26, a vegetable room 27, and a freezing room 28 from above.

  Moreover, the both sides | surfaces of the partition wall 24 have the opening part 24a, and the foaming heat insulating material 22 is filled into the partition wall 24 similarly to the heat insulation box 19. FIG.

  In addition, the vegetable compartment 27 arranged at the upper part of the partition wall 24 has a cooling temperature of about 5 ° C., and the freezer compartment 28 arranged at the lower part thereof is vertically frozen through the partition wall 24 such that the cooling temperature is about −20 ° C. Are set to different temperature zones.

  The vegetable compartment 27 and the freezer compartment 28 are drawer-type storage rooms each having a front opening 19a provided with a vegetable compartment drawer door 29 and a freezer compartment drawer door 30, and the vegetable compartment 27, the vegetable compartment drawer door 29, and the freezer compartment drawer. Each door 30 is connected by a rail member 31 so that it can be drawn and slid in the front-rear direction. The switching chamber 26 is also a drawer type storage chamber.

  Moreover, the upper end part of the vegetable room drawer door 29 is set so that it may be located below 1000 mm corresponding to the height of a person's elbow from a floor surface.

  The rail member 31 includes a fixed rail 31a, a movable rail 31b, an intermediate traveling rail 31c provided between the fixed rail 31a and the movable rail 31b, and an engagement between the intermediate traveling rail 31c, the fixed rail 31a, and the movable rail 31b. The fixed rail 31a is fixed to both side walls of the inner box 20 with the fixed rail 31a, the moving rail 31b, the intermediate running rail 31c, and the bearing 31d pre-installed. The movable rail 31b is connected to and supported by the vegetable compartment drawer door 29 and the freezer compartment drawer door 30 that are arranged vertically via the partition wall 24.

  The container 32 of each storage chamber is supported by the moving rail 31b of the rail member 31 after the rail member 31 is fixed to the inner box 20, and is moved back and forth together with the moving rail 31b in synchronism with pulling out each storage chamber drawer door in the front-rear direction. The container 32 can be easily attached and detached upward when the storage room drawer doors are at least fully opened.

  Such an operation when opening the drawer-type door can be pulled out to the maximum open position by one pull-out operation performed by the user. Although not shown here, the rail member 31 may be disposed on the partition wall 24.

  Moreover, the rail member 31 which consists of the fixed rail 31a, the movable rail 31b, and the intermediate | middle running rail 31c arrange | positioned via the bearing 31d between the fixed rail 31a and the movable rail 31b is integrated beforehand, and is like this The clearance between the rails can be set to the minimum for the first time by using high-precision rails incorporated in advance.

  Further, the depth (P dimension) of the container 32 is set to be greater than the depth (H dimension), and the withdrawal allowance (L dimension) of the vegetable compartment drawer door 29 and the freezer compartment drawer door 30 is the depth (P dimension) of the container 32. It is set larger.

  When the vegetable compartment drawer door 29 and the freezer compartment drawer door 30 are fully opened, the inner wall surface (c surface) on the back side of the container 32 is the front opening portion 19a, that is, here the front opening surface (a It is set so as to be located in front of the surface.

  Moreover, the depth (P dimension) of the container 32 provided in the vegetable compartment 27 is about 60% with respect to the depth dimension (M dimension) of the heat insulation box 19, and it is a drawer-type storage room with a deep depth. .

  Further, the vegetable room 27 is a storage room having the largest capacity among the plurality of drawer-type storage rooms.

  And in order to implement the said door opening / closing specification, the full length (D dimension) of the moving rail 31b of the rail member 31 is set larger than the fixed rail 31a (E dimension).

  The total length (F dimension) of the intermediate travel rail 31c disposed between the fixed rail 31a and the moving rail 31b via the bearing 31d is substantially the same as the fixed rail 31a (E dimension). When the vegetable compartment drawer door 29 and the freezer compartment drawer door 30 are closed, the distal ends of the fixed rail 31a and the movable rail 31b are substantially flush with the rear ends of the movable rail 31b and the intermediate running rail 31c being substantially flush. Become. Further, when the vegetable room drawer door 29 and the freezer compartment drawer door 30 are fully opened, the rear end of the movable rail 31b is located at substantially the same position as the front end of the fixed rail 31a, and the fixed rail 31a and the movable rail of the intermediate traveling rail 31c. The intermediate travel rail 31c is slid so that the lap allowance with 31b has substantially the same size.

  In addition, the left and right rail members 31 fixed to the both side wall surfaces of the inner box 20 have a bilaterally symmetric shape, and exhibit better slidability by providing both left and right.

  Further, a small container 32a shallower than the container 32 is installed on the upper part of the container 32 of the freezer compartment 28, and food can be stored separately.

  Further, the fixed rails 31a of the pair of left and right rail members 31 are restricted in fixed positions via the inner box 20 by the connecting members 33 which are position restricting means.

  The connecting member 33 has a horizontal portion 33a and an H-shaped section having a vertical portion 33b at both ends of the horizontal portion 33a. The horizontal portion 33a is fixed inside the partition wall 24 between the upper partition wall 24b and the lower partition wall 24c. The vertical portion 33b protrudes from the open portion 24a of the partition wall 24 to the outside of the partition wall 24 and is disposed on the side of the inner box 20 filled with the foam heat insulating material 22, so that the connecting member 33 is not exposed to each storage chamber. It has become.

  Further, both ends of the vertical portion 33b reach the vicinity of the center in the vertical direction of the vegetable compartment 27 and the freezing compartment 28, and the fixed rails 31a of the left and right rail members 31 in each storage chamber are fixed to the fixed portions 33c of the vertical portion 33b. At least the fixing portion 33c of the vertical portion 33b is in contact with the surface of the inner box 20 on the side filled with the foam heat insulating material 22. Further, the left and right vertical portions 33b are provided with holes 33d.

  When the connecting member 33 becomes large, it is divided into a plurality of front and rear parts, each having a horizontal portion 33a, a vertical portion 33b, and a fixing portion 33c, and if necessary provided with a hole 33d, the connecting member 33 is integrated. The same effect as that obtained can be obtained. The bearing 31d may be a rotation support member, and for example, a roller or the like may be used.

  About the refrigerator comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  First, when each storage room drawer door is pulled forward, the moving rail 31b of the rail member 31 and the intermediate traveling rail 31c provided on both sides of each storage room are smoothly moved to the near side by rotating the rotation support member 31d. Slide.

  Along with this, the container 32 supported by the rail member 31 is also pulled out to the front, and the object to be cooled stored in the container 32 can be taken out and a new object to be cooled can be stored.

  As described above, the clearance between the fixed rail 31a and the movable rail 31b is reduced by fixing the high-precision rail member 31 in a state in which the fixed rail 31a and the movable rail 31b are preliminarily mounted to both side walls of the inner box 20. Therefore, a high-quality drawer with less play can be configured. In addition, since the variation in the mounting can be reduced by reducing the clearance, it is possible to suppress the appearance defect such as the inclination due to the mounting failure of the drawer door and the non-uniform spacing with other drawer doors. These effects are more effective as the allowance for the rail member 31 is larger. The inner wall surface (c surface) on the back side of the container 32 is located in front of the front opening surface (a surface) of the heat insulation box 19 when fully opened as in the drawer-type storage chamber of the present embodiment. The moving rail and the fixed rail as described in the background art are separated as if the drawer allowance is large, and it was provided on the door side later in the groove of the fixed rail provided on the heat insulation box side. When using a type of rail that inserts a moving rail, if the clearance between the rails is small when inserting the rail, it will be very difficult to insert the rail. It was necessary to increase the clearance.

  Therefore, when using separate rails as in the background art, the clearance between the rails increases, so the mounting variation also increases, and the inclination due to the installation failure of the drawer doors and the distance from other drawer doors As a result of this unevenness, an uneven load is generated on the rail centering around this rattle, and there is concern about the deformation of the rail and the mounting surface due to this uneven load. Although it is difficult to apply to a drawer-type storage room where a large load is applied by a drawer-type door having a large size, a high-precision rail in a state in which the fixed rail 31a and the movable rail 31b are assembled in advance as in the present embodiment. If it is the member 31, sufficient reliability can be ensured even if it applies to the storage room with a big drawer | drawing-out allowance.

  Moreover, in this Embodiment, in the largest open position of the vegetable compartment 27 which is the drawer-type storage chamber with the largest capacity | capacitance among the several drawer-type storage chambers with which the heat insulation box 19 was equipped, in the back | inner side of the container 32 The inner wall surface (c surface) is located in front of the front opening surface (a surface) of the heat insulation box 19.

  In this way, even in a drawer-type storage room where the load is heavy due to the largest capacity and the weight during storage is large, the occurrence of unbalanced load on the rail centering around the rattle is suppressed. The deformation of the rail and the mounting surface due to this unbalanced load can be reduced, and the upper opening of the container can be maximized when the drawer door is opened without degrading the reliability of the refrigerator. It is possible to improve the food take-out property and the detachability of the container itself.

  Furthermore, in this Embodiment, the depth (P dimension) of the container 32 with which the vegetable compartment 27 was equipped is about 60% with respect to the depth dimension (M dimension) of the heat insulation box 19, and depth is deep. It is a drawer-type storage room.

  As a result, even in a deep-type drawer-type storage chamber, which has conventionally been difficult to increase the drawer allowance, by applying the high-precision rail member 31 in which the fixed rail 31a and the movable rail 31b are incorporated in advance. Since the drawer 32 can be pulled out smoothly to the back of the container 32 provided in the drawer-type storage chamber, it is possible to improve the storability of the user's refrigerator and provide an easy-to-use refrigerator.

  If the ratio of the depth (P dimension) of the container 32 provided in the vegetable compartment 27 to the depth dimension (M dimension) of the heat insulation box 19 is in the range of 55% or more and 90% or less, the deep type By opening the upper surface of the container in this range with a large withdrawal allowance, the user's usability is greatly improved as compared with the conventional case.

  Furthermore, if the ratio exceeds 70%, the refrigeration cycle parts such as a compressor, a cooler, and a condenser are not arranged behind the drawer-type storage chamber or are thinned even if arranged. It is easy to realize with a refrigerator and is easy to differentiate compared to conventional refrigerators.

  If the ratio does not exceed 80%, the structure and rail specifications related to securing the strength against the load on the drawer-type container can be handled within a relatively reasonable range, and the cost burden is reduced. it can.

  The vegetable compartment 27, which is a drawer-type storage room, can be pulled out to the maximum open position by a single drawer operation performed by the user.

  Accordingly, when the user performs an operation of opening the vegetable compartment 27, the user can smoothly open the vegetable chamber 27 to the maximum open position by one pulling-out operation. For example, while holding the stored items in the refrigerator, with one hand Thus, it is possible to smoothly pull out to the maximum open position, improve the user's storage capacity of the refrigerator, and provide an easy-to-use refrigerator.

  Further, by supporting the fixed rail 31a and the moving rail 31b with a bearing 31d as a rotation support member, the moving rail 31b can move smoothly even when a load is applied to the container 32, so that the operation force of the drawer is reduced. Can improve usability.

  Further, by restricting the mounting position of the fixed rail 31 a of the rail member 31 by the connecting member 33, the width dimension or parallelism of the pair of left and right rail members 31 can be maintained as specified, and the connecting member 33 can prevent the heat insulating box 19 from being attached. Both sides of the inner box 20 with the rail member 31 in which the clearance between the fixed rail 31a and the movable rail 31b is set small in advance is suppressed by suppressing a dimensional change due to heat shrinkage at the time of cooling after filling the foam heat insulating material 22 Since the dimensional accuracy between the pair of left and right rail members 31 can be kept high in the specification of fixing to the wall surface, the operability when the container 32 is pulled out can be enhanced by the connecting member 33 which is a position restricting means. In addition, it is possible to ensure operation reliability over a long period of time.

  Moreover, since the intermediate travel rail 31c is provided and the total length (D dimension) of the moving rail 31b of the rail member 31 is set larger than the fixed rail 31a (E dimension), the vegetable compartment drawer door 29 and the freezer compartment drawer door 30 are provided. When fully opened, the withdrawal allowance (L dimension) can be set larger than the depth (P dimension) of the container 32, and the inner wall surface (c surface) on the back side of the container 32 is the front opening surface (a surface) of the heat insulation box 19. It is possible to be positioned further forward.

  Therefore, when the vegetable compartment 27 and the freezer compartment 28 are used, it can be pulled out to the back of the container 32 interlocked with the vegetable compartment drawer door 29 and the freezer compartment drawer door 30, and the container 32 can be overlooked. Loss due to forgetting to use the object to be cooled in the chamber 32 can be prevented, and the container 32 can be easily attached to and detached from the rail member 31, so that the usability can be improved.

  Moreover, in this Embodiment, since the drawer | drawing-out allowance of the vegetable compartment 27 which is a drawer-type storage room is large, the container 32 with which the vegetable compartment 27 was equipped in the maximum open position is taken out by pulling up in the substantially perpendicular direction. It is possible.

  As a result, the user can easily attach and detach the container when removing the container to clean the container, etc. User convenience can be significantly improved.

  In the present embodiment, at the maximum open position of the vegetable compartment 27 which is the drawer-type storage chamber having the largest capacity among the plurality of drawer-type storage chambers provided in the heat insulation box 19, the rear side of the container 32 is provided. It is assumed that the inner wall surface (c surface) is located in front of the front opening surface (a surface) of the heat insulation box 19, and that the food can be easily taken out and the container 32 can be easily attached and detached. Of these types of storage chambers, at least the drawer-type storage chambers where such an effect is most needed provide at least a large number of drawers if used separately from a drawer-type storage chamber that does not necessarily require such a container. A reasonable configuration can be selected in a refrigerator having a storage room. For example, the need for a relatively compact and small-capacity drawer container is reduced, and when the door located directly above is a double-folded type rotary door instead of a drawer door, the upper door is opened. This is because the container can be attached / detached relatively easily if it is present, and it is difficult to feel much inconvenience even if the container is not configured as described above, considering the balance with the attachment / detachment opportunity.

  In the present embodiment, in the present embodiment, in the maximum open position of the vegetable compartment 27 which is the drawer-type storage chamber having the largest capacity among the plurality of drawer-type storage chambers provided in the heat insulation box 19, Although the inner wall surface (c surface) on the back side of the container 32 is located in front of the front opening surface (a surface) of the heat insulation box 19, more preferably, in the drawer-type storage chamber as shown in FIG. In the maximum open position of a certain vegetable room 27, the rear end surface of the container 32 is positioned in front of the front surface (b surface) of the door provided in the upper storage room adjacent to the drawer-type storage room, that is, the vegetable room. 27, the depth interval between the rear surface of the vegetable compartment door 29 provided with the container 32 and the front surface of the door immediately above the vegetable compartment 27 provided with the container 32 is larger than the outer depth of the container 32. Above the container 32 by Since the front of the door directly above does not protrude, when the user puts in or out the stored items from the vegetable compartment 27, the door no longer intervenes in the upper part of the container 32. The food take-out property of the food is further improved.

  Further, when the user removes the container 32 in order to clean the container 32, the container 32 can be easily attached and detached without any obstacles simply by lifting the container 32 upward, and the food can be stored. It is possible to greatly improve the convenience of the user when keeping the refrigerator, which is easily contaminated with dirt, clean by washing or washing.

  Moreover, since the small container 32a shallower than the container 32 is installed in the upper part of the container 32 of the freezer compartment 28, food can be stored separately, and the usability is further improved.

  The positional relationship between the inner wall surface on the back side of the shallow accessory container 32a and the front opening surface (a surface) of the heat insulation box 19 and the front end surface (b surface) of the rear end surface and the upper part is the same as that of the container 32 described above. By setting to, a similar effect can be obtained for the shallow accessory container 32a.

  Moreover, since the upper end part of the vegetable room drawer door 29 is set to 1000 mm or less lower than the position of a person's elbow, the food in / out of the container 32 can be taken in and out easily.

  Further, since the connecting members 33 are not exposed in the respective storage chambers, it is possible to suppress the reduction of the storage internal volume as compared with the case where the connecting members 33 are arranged in the respective storage chambers.

  In addition, when the connecting member 33 is formed of a metal material, it is possible to prevent injuries due to the edge of the end face, so that safety can be improved, and furthermore, the edge deletion process of the end face can be eliminated, so that the cost can be reduced.

  Moreover, since the connecting member 33 that connects the left and right fixed rails 31a is embedded in the foam heat insulating material 22 of the heat insulating box 19, it is possible to prevent condensation and frost formation of the connecting member 33 when the refrigerator 18 is used. Further, since the connecting member 33 does not come into contact with air, the corrosion resistance of the connecting member 33 can be improved, and the rust prevention treatment of the connecting member 33 can be reduced, so that the cost can be reduced.

  Further, the presence of the foam heat insulating material 22 around the connecting member 33 can improve the attachment strength of the connecting member 33, and can improve the reliability of position regulation and the attachment strength of the rail member 31.

  Moreover, since the partition wall 24 which divides the heat insulation box 19 into the vegetable compartment 27 and the freezer compartment 28 was provided, and the connection member 33 which connects the right and left fixed rail 31a was provided inside the partition wall 24, a plurality of storage spaces were provided. When it has, the reduction of the storage internal volume by arrange | positioning the connection member 33 can be suppressed.

  Moreover, since the vegetable room 27 and the freezing room 28 which adjoined up and down were each provided with the rail member 31, and the fixed rail 31a of each rail member 31 was integrally fixed by the connection member 33, the operativity of several storage chambers is carried out. It can be increased at the same time.

  In addition, since the connecting member 33 has an H-shaped cross section having the vertical portions 33b at both ends, the fixed rail 31a of the rail member 31 of the vegetable compartment 27 and the freezing compartment 28 adjacent to the vertical portion 33b is fixed integrally. By fixing the fixed rails 31a of the plurality of rail members 31 to one connecting member 33, it is possible to reduce the cost by reducing the number of parts.

  In the present embodiment, the connecting member 33 has a vertical portion 33b at both ends and a cross-sectional H shape having a horizontal portion 33a therebetween, and the connecting member 33 has a cross-sectional H shape having vertical portions 33b at both ends. When the connecting member 33 provided with the hole 33d is enlarged in the left and right vertical portions 33b, the connecting member 33 is divided into a plurality of front and rear portions, each having a horizontal portion 33a, a vertical portion 33b, and a fixing portion 33c. Providing the hole 33d provides the same effect as when the connecting member 33 is integrated.

  In addition, the horizontal part 33a of the connection member 33 may not necessarily be necessary depending on the design of the refrigerator. For example, the connection member 33 does not have the horizontal part 33a, and the left and right sides of the inner box 20 are filled with the foam insulation 22. The vertical part 33b may have a pair of vertical parts 33b. In this case, the vertical part 33b is not connected to each other and is a separate body. Thus, the accuracy of the left and right mounting positions of the rail member 31 can be improved, and the high-precision rail member can be provided while saving resources by eliminating the horizontal portion 33a.

  Further, since the holes 31c are provided in the vertical portions 31b at both ends of the connecting member 33, heat transfer from the connecting member 33 is suppressed when the temperature zones of the plurality of storage chambers are different, and condensation on the storage chamber side having a high temperature zone is suppressed. And increase in power consumption due to heat leakage can be suppressed.

  In addition, the heat transfer amount can be effectively reduced by providing a plurality of holes 31c provided in the vertical portion 31b to such an extent that the strength can be maintained.

  Further, when the fixed rails 31a of the pair of left and right rail members 31 are connected in the front-rear direction by a plurality of connecting members 33, particularly when the rail member 31 is used in a large refrigerator, the connecting member 33 is divided into a plurality of parts. As a result, the connecting member 33 can be reduced in size, and the cost can be reduced.

  In the present embodiment, the rail member 31 is shared by the vegetable compartment 27 and the freezer compartment 28. However, the use of materials made of different materials for different storage compartments depending on the actual storage configuration, etc. further reduces cost and reliability. It is possible to improve the performance.

  The connecting member 33 is made of a material having a linear expansion coefficient of 1.0 to 3.0 × 10 −6 cm / cm · ° C. and a thermal conductivity of 0.1 to 0.2 W / m · K. In terms of linear expansion coefficient, metals are 1.0 to 3.0 × 10 −6 cm / cm · ° C. and resins are 1.0 to 15.0 × 10 −5 cm / cm · ° C. Is 1.0 to 400.0 W / m · K for metals and 0.1 to 0.2 W / m · K for resins.

  Therefore, when the mounting position accuracy of the rail member 31 is required during operation of the refrigerator 18 as the material of the connecting member 33, metals having a low linear expansion coefficient are used to prevent condensation on the storage room side having a high temperature zone. When it is required to suppress an increase in power consumption due to heat leakage, it is desirable to use resins having a low thermal conductivity. Moreover, you may integrate and use both with respect to several storage chambers.

  In the present embodiment, the vegetable member 27 and the freezer compartment 28 are described as using the rail member 31, but can be appropriately applied to a storage room provided with a drawer container. For example, you may use for drawer-type storage rooms, such as the switching room 25 located in the upper part of the vegetable compartment 27, and the ice making room (not shown) attached beside the switching room 25. FIG.

  In the present embodiment, the connecting member 33 has a horizontal portion 33a and an H-shaped cross section having the vertical portions 33b at both ends of the horizontal portion 33a, and the rail members 31 of the vegetable compartment 27 and the freezer compartment 28 are fixed integrally. As described above, a connecting member having a U-shaped cross section having vertical portions at both ends may be used for each of the vegetable compartment 27 and the freezing compartment 28. In this case, in a refrigerator in which the vegetable compartment 27 and the freezer compartment 28 are not provided vertically, it is possible to provide an easy-to-use drawer with a small operation force even when a high quality and load with little backlash are applied. In addition, heat transfer from the connecting member is further suppressed when the temperature zones of the plurality of storage chambers are different compared to when a plurality of rail members are fixed to one connecting member, and condensation on the storage chamber side having a high temperature zone is prevented. And increase in power consumption due to heat leakage can be suppressed.

  Note that the fixed rails of the pair of left and right rail members may be connected by a plurality of connecting members. In this case, since the connecting member can be reduced in size by dividing the connecting member into a plurality of parts, the cost can be reduced and the weight can be reduced.

(Embodiment 2)
6 is a side sectional view of the refrigerator according to Embodiment 2 of the present invention, FIG. 7 is a sectional view taken along line AA of FIG. 6, FIG. 8 is a schematic assembly diagram of the refrigerator of the same embodiment, and FIG. FIG. 10 is an exploded view of the rail member of the refrigerator of the embodiment, and FIG. 10 is a cross-sectional view of the rail member of the refrigerator of the embodiment.

  In the figure, the heat insulating box 219 of the refrigerator 218 is filled with a foam heat insulating material 222 between the inner box 220 and the outer box 221, has a front opening 219 a, and the partition walls 223, 223 a, 226, A refrigerator room 224, a switching room 225, a vegetable room 227, and a freezer room 228 are formed from the top.

  In addition, the vegetable compartment 227 arranged at the upper part of the partition wall 226 has a cooling temperature of about 5 ° C., and the freezing room 228 arranged at the lower part has a cooling temperature of about −20 ° C. Is set to

  The vegetable compartment 227 and the freezer compartment 228 are respectively closed at the front opening 219a by a door 229 and a door 230, and the vegetable compartment 227 and the door 229, and the freezer compartment 228 and the door 230 are respectively connected by a rail member 231. As a result, it can be drawn and slid in the front-rear direction.

  In addition, by having a self-closing means for self-closing the door 219, it is possible to ensure reliable airtightness between the heat insulating box 219 and the doors 229 and 230.

  The rail member 231 includes a fixed rail 231a, a movable rail 231b, an intermediate traveling rail 231c provided between the fixed rail 231a and the movable rail 231b, and an engagement between the intermediate traveling rail 231c, the fixed rail 231a, and the movable rail 231b. The fixed rail 231a is fixed to both side walls of the inner box 220 in a state in which the fixed rail 231a, the moving rail 231b, the intermediate traveling rail 231c, and the bearing 231d are assembled in advance. Then, each storage room and the storage room door are connected by fixing the moving rail 231b to each storage room door. Here, although not shown, the rail member 231 may be fixed to the partition wall 226 that partitions the storage chamber.

  A rail member 231 including a fixed rail 231a, a movable rail 231b, and an intermediate traveling rail 231c disposed between the fixed rail 231a and the movable rail 231b via a bearing 231d is incorporated in advance, and the claw 241 is provided. The self-closing unit 242 can be fixed without being influenced by the heat insulating box 219. Here, when there is sufficient space in the refrigerator depth, there is no intermediate traveling rail, and a rotation support member may be disposed between the fixed rail and the moving rail.

  Furthermore, the left and right rail members 231 fixed to the both side wall surfaces of the inner box 220 have a symmetrical shape and exhibit better slidability by providing both left and right.

  The container 232 of each storage chamber is supported by the moving rail 231b of the rail member 231 after fixing the rail member 231 to the inner box 220, and moves back and forth together with the moving rail 231b in synchronization with pulling out each storage chamber door in the front-rear direction. Further, the container 232 is detachable upward when each storage chamber door is fully opened.

  The bearing 231d may be a rotation support member, and for example, a roller or the like may be used.

  The self-closing means is disposed on a pair of left and right rail members 231 and includes a claw 241 and a self-closing unit 42, and the self-closing unit 242 includes a hook 243 and a spring 244. The claw 241 is fixed to the moving rail 231b, and the self-closing unit 242 is fixed to the fixed rail 231a.

  Here, when the doors 229 and 230 are opened in the front-rear direction, the hooks 243 engaged with the claws 241 and the claws 241 move in synchronization with the doors 229 and 230, and the claws are moved after a certain distance L (self-closing distance). The engagement between 241 and the hook 243 is released, and the hook 243 is held in that position. When closed, it is the reverse of the opening, and when the claw 241 and the hook 243 are engaged, the doors 229 and 230 are fitted to the heat insulating box 219 by the elastic force F (self-closing force) of the spring 244. Here, although not shown, the magnet in the gasket 250 can be abolished by having a self-closing means, the front opening 219a need not be made of metal, and the power consumption and cost of the refrigerator 218 can be reduced. It becomes.

  The self-closing force F and the self-closing distance L can be expressed by F = KL, F> f (where K is a spring constant, f is a load amount acting on the door), and the spring is matched to the load amount f. By changing the constant K and the self-close distance L, the self-close force and the self-close distance can be adjusted. It is also possible to change the self-closing force and the self-closing distance in consideration of not only the load amount but also the door position and the strengthening of the fitting between the heat insulating box and the door.

  Further, the elastic force F (self-closing force) of the spring 244 which is a self-closing means is set to remain in the fully closed state of the doors 229 and 230.

  About the refrigerator comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  First, when each storage room door is pulled out, the moving rail 231b and the intermediate traveling rail 231c of the rail member 231 provided on both sides of each storage room slide smoothly toward the front side as the bearing 231d rotates. . At that time, the hook 243 engaged with the claw 241 and the claw 241 moves in synchronization with the doors 229 and 230, and the claw 241 and the hook 243 are disengaged after moving for a certain distance L (self-closing distance). Is held in that position. When closed, it is the reverse of the opening, and when the claw 241 and the hook 243 are engaged, the doors 229 and 230 are fitted into the heat insulating box body by being pulled back by the elastic force F (self-closing force) of the spring 244.

  Along with this, the container 232 supported by the rail member 231 is also pulled out to the front, so that the object to be cooled stored in the container 232 can be taken out and a new object to be cooled can be stored.

  As described above, in the present embodiment, the airtightness of the heat insulating box 219 and the doors 229 and 230 is improved by disposing the self-closing means on the rail member 231 in which the fixed rail 231a and the movable rail 231b are assembled in advance. The drawer can be improved and the power consumption can be reduced and the operation feeling can be improved. Further, the claw 241 and the hook 243 can be engaged without being affected by the heat insulating box 219, and a highly stable self-closing structure can be obtained. Further, by supporting the space between the fixed rail 231a and the moving rail 231b with a bearing 231d that is a rotation support member, even when a load is applied to the container 232, the moving rail 231b can move smoothly, thereby reducing the operation force of the drawer. Can improve usability.

  Further, since the spring is self-closed due to the elasticity of the spring, the influence of the temperature change can be reduced, and since the constituent elements are simple, variations in the self-closeability can be suppressed.

  In addition, the self-closing force and the self-closing distance can be easily changed, and fine operability can be realized.

  Further, by providing the intermediate traveling rail 231c, the pulling allowance of the moving rail 231b of the rail member 231 can be increased, so that it can be pulled out to the inner part of the container 232, and it is possible to overlook the inner part of the container 232, Loss due to forgetting to use the object to be cooled in the container 232 can be prevented, and the container 232 can be easily attached to and detached from the rail member 231, so that the usability can be improved.

  In addition, since the elastic force F (self-closing force) of the spring 244, which is a self-closing means, is set to remain when the doors 229 and 230 are fully closed, the sealing performance between the door and the heat insulating box is further improved. Therefore, the power consumption can be further reduced.

  In addition, in this Embodiment, although the thing using the rail member 231 was demonstrated to the vegetable compartment 227 and the freezer compartment 228, it can apply suitably to the storage room provided with the drawer container. For example, you may use for the switching room 225 located in the upper part of the vegetable compartment 227, the ice making room (not shown) attached to the side of the switching room 225, etc.

(Embodiment 3)
11 is a side sectional view of the refrigerator according to the third embodiment of the present invention, FIG. 12 is a sectional view taken along the line AA in FIG. 11, FIG. 13 is a schematic assembly diagram of the refrigerator according to the embodiment, and FIG. FIG. 15 is a cross-sectional view taken along the line CC in FIG. 13, and FIG. 16 is a cross-sectional view taken along the line DD in FIG. 14.

  11 to 16, a heat insulating box 319 of a refrigerator 318 is obtained by filling a foam heat insulating material 322 between an inner box 320 and an outer box 321, and has a front opening 319a, and partition walls 323, 323a. 326 forms a refrigerator compartment 324, a switching chamber 325, a vegetable compartment 327, and a freezer compartment 328 from above.

  Both side surfaces of the partition wall 326 have open portions 326a, and the partition wall 326 is filled with a foam heat insulating material 322 in the same manner as the heat insulating box 319. In addition, the vegetable compartment 327 arranged at the upper part of the partition wall 326 has a cooling temperature of about 5 ° C., and the freezing room 328 arranged at the lower part has a cooling temperature of about −20 ° C. Is set to The vegetable compartment door 329 and the freezer compartment door 330 are obtained by filling a foam heat insulating material 337 between the inner plate 335 and the outer plate 336.

  The vegetable compartment 327 and the freezer compartment 328 are respectively closed at the front opening 319a by the vegetable compartment door 329 and the freezer compartment door 330, and the vegetable compartment door 329 and the freezer compartment door 330 are respectively formed by a door support member 334 and a rail member 332. It can be drawn and slid in the front-rear direction.

  The rail member 332 includes a fixed rail 332a, a movable rail 332b, an intermediate traveling rail 332c provided between the fixed rail 332a and the movable rail 332b, and the intermediate traveling rail 332c, the fixed rail 332a, and the movable rail 332b. A plurality of bearings 332d, which are rotation support members that support the joint, and the fixed rail 332a is inserted via the inner box 320 in a state in which the fixed rail 332a, the moving rail 332b, the intermediate traveling rail 332c, and the bearing 332d are assembled in advance. The left and right sides are fixed to a reinforcing member 331 that also serves as a position restriction provided on the foam heat insulating material 322 side.

  Further, the door support member 334 includes a frame 334a and a mounting portion 334b stepped downward, and is connected and fixed to the vegetable compartment door 329 on the left and right sides respectively. At this time, a single door reinforcing member 338 made of a material higher in rigidity than the inner plate 335, for example, a steel plate, is provided on the side of the foam insulating material 337 of the inner plate 335, which also serves to fix and reinforce the door support member 334. These are positioned by positioning pins (not shown) provided on the door support member 334 side and mounting holes 334c of the mounting portion 334b and fixed by mounting screws 334d which are screws.

  Then, with the door support member 334 connected and fixed to the vegetable compartment door 329, the moving rail 332b of the rail member 332 and the stepped frame 334a of the door support member 334 are connected and fixed by the fixing hole 334e and the mounting screw 334d, A container 333 is placed from above 334a.

  In addition, the fitting portion of the stepped frame 334a of the door support member 334 with the moving rail 332b is formed in a trapezoidal shape having an opening in the lower portion and a width dimension E of the stepped upper portion narrower than the width dimension F of the lower end.

  The door support member 334 is formed of a material having a linear expansion coefficient of 1.0 to 3.0 × 10 −6 cm / cm · ° C.

  The door support member 334 is formed of a material having a thermal conductivity of 0.1 to 0.2 W / m · K.

  The rail members 332 having the fixed rail 332a and the moving rail 332b, and the intermediate traveling rail 332c disposed via the bearing 332d between the fixed rail 332a and the moving rail 332b are preliminarily incorporated. The clearance between the rails can be set to a minimum.

  The bearing 332d may be a rotation support member, and for example, a roller or the like may be used.

  About the refrigerator comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  First, when each storage chamber door is pulled out, the moving rail 332b of the rail member 332 and the intermediate traveling rail 332c provided on both sides of each storage chamber slide smoothly toward the front side as the bearing 332d rotates. . Along with this, the container 333 supported by the frame 334a of the door support member 334 is also pulled out to the front, so that the object to be cooled stored in the container 333 can be taken out and a new object to be cooled can be stored.

  Further, the front end portion 332ca of the intermediate traveling rail 332c is located on the near side of the rear end portion 334f of the door support member 334 at the maximum open position of the drawer-type storage chamber.

  As a result, the door support member 334 and the rail member 332 are wrapped in the vertical direction even in a drawer type storage chamber where the capacity is the largest and the weight during storage is large and a large load is applied to the drawer type door. By devising the arrangement relationship, the front end portion 332ca of the intermediate traveling rail 332c, which tends to be the weakest, is connected to the door support member 334 in the vertical direction via the moving rail 332b, so that the strength of the rail member 332 is increased. The door support member 334 that connects the door 329 and the heat insulating box 319 and the rail member 332 can be prevented from being deformed and broken even when a large load is applied to the drawer-type storage chamber. . Therefore, the upper surface opening of the container can be maximized when the drawer door is opened without lowering the reliability of the refrigerator, and the food take-out property from the container and the detachability of the container itself can be improved.

  In particular, the rail member 332 includes a fixed rail 332a, a moving rail 332b, an intermediate traveling rail 332c provided between the fixed rail 332a and the moving rail 332b, an intermediate traveling rail 332c, a fixed rail 332a, and a moving rail 332b. A plurality of bearings 332d that are rotation support members that support the engagement of the fixed rails 332a, the fixed rails 332a, the intermediate rails 332c, and the bearings 332d in a state in which the fixed rails 332a are assembled in advance. Since the right and left are respectively fixed to the reinforcing member 331 that also serves as a position regulation provided on the foamed heat insulating material 322 via the clearance, the clearance between the fixed rail 332a and the moving rail 332b can be reduced, and high quality with less play Long drawers can be configured. Further, since the variation in mounting can be reduced by reducing the clearance, it is possible to suppress the appearance defect such as the inclination due to the door mounting failure and the non-uniform spacing with other doors. These effects are more effective as the allowance for the rail member 332 is larger. Further, by supporting the space between the fixed rail 332a and the moving rail 332b with a bearing 332d that is a rotation support member, the moving rail 332b can move smoothly even when a load is applied to the container 333, thereby reducing the operation force of the drawer. Can improve usability.

  Also, with the door support member 334 connected to the vegetable compartment door 329, the stepped frame 334a of the rail member 332 and the stepped frame 334a of the door support member 334 are fixed by the fixing hole 334e and the mounting screw 334d, and the frame 334a By placing the container 333 from above, the door support member 334 and the moving rail 332b of the rail member 332 are securely fixed, the detachability of the container 333 is improved, and the operability of the rail member 332 is ensured and the assembly work is performed. It is possible to improve the performance.

  In addition, the door support member 334 and the moving rail 332b are fixed by a plurality of different means, and the mounting portion 334b, which is a fixed portion located on the door side among the plurality of fixed portions, is connected to the door support member 334 and the moving rail. Is fixed with screws.

  As a result, when mounting a high-accuracy rail member with a fixed rail and moving rail pre-installed on the heat insulation box, it is positioned on the door side where the most load resistance is required while improving assembly accuracy. In the fixing hole 334e which is a fixing location to be performed, a large attachment strength can be obtained, the deformation of the door support member and the rail member can be prevented, and the reliability of the refrigerator can be improved.

  At this time, the fixing hole 334e, which is a fixing portion on the front side, is fixed with screws, but the rear end portion 334f of the door support member 334 located on the rear side is fixed to the moving rail 32b by fitting. Therefore, when the door support member 334 and the rail member 332 are fixed, the rear end portion 334f of the door support member 334 is first fitted to the moving rail 332b and temporarily fixed, and then fixed as a fixing portion on the front side. By fixing the hole 334e with a screw, the assembly accuracy is improved, and the fixing hole 334e, which is a fixing portion on the front side located on the door side where the load resistance is most required, is fixed by screw fixing. Strength can be obtained, deformation of the door support member and rail member can be prevented, and reliability of the refrigerator can be improved.

  Further, by providing a door reinforcing member 338 that also serves to fix and reinforce the door support member 334 on the foam insulating material 337 side of the inner plate 336, it is possible to increase the strength of the door support structure and improve the assembly workability. . Further, since the door reinforcing member 338 can regulate the width dimension or parallelism of the door support member 334, it can be applied in a state in which the rail member 332 in which the clearance between the fixed rail 332a and the moving rail 332b is set to be small is incorporated in advance. In addition, it is possible to ensure operation reliability over a long period of time.

  Further, the fitting portion of the stepped frame 334a of the door support member 334 with the moving rail 332b is formed in a trapezoidal shape having an opening at the bottom and a width E of the stepped upper portion narrower than the width F of the lower end. The door support member 334 can be easily assembled into the moving rail 332b.

  Further, since the door support member 334 is formed of a material having a linear expansion coefficient of 1.0 to 3.0 × 10 −6 cm / cm · ° C., the door support member 334 is formed of a material having a low linear expansion coefficient. By doing so, the influence on the operability due to the shrinkage of the door support member during the cooling operation of the refrigerator can be reduced, so that the operation reliability of the rail member can be improved.

  Further, since the door support member 334 is made of a material having a thermal conductivity of 0.1 to 0.2 W / m · K, by forming the door support member 334 with a material having a low thermal conductivity, In particular, when the temperature zones of the plurality of storage rooms are different, heat transfer from the door support member can be suppressed, and condensation on the storage room side having a high temperature range can be prevented and an increase in power consumption due to heat leakage can be suppressed.

  Further, since the door reinforcing member 338 is made of a material having higher rigidity than the inner plate 336, the fixing strength of the door supporting member is further increased, and the operation reliability can be ensured in the long term.

  In addition, the door support member 334 includes a frame 334a and a mounting portion 334b that are stepped downward, and is separately connected to the vegetable compartment door 329 on the left and right sides, so that the door support member 334 can be used together and the cost can be reduced. Further, weight reduction can be achieved.

  Although the vegetable room door 329 has been described in the present embodiment, the freezing room door 330 or the switching room 325 located above the vegetable room 327 and an ice making room (not shown) provided next to the switching room 325. You may use for drawer doors, such as.

(Embodiment 4)
17 is a side sectional view of the refrigerator according to Embodiment 4 of the present invention, FIG. 18 is an enlarged view of a main part of FIG. 17, FIG. 19 is a sectional view taken along line AA of FIG. 17, and FIG. FIG. 21 is an exploded view of the rail member, and FIG. 21 is a cross-sectional view of the rail member of the refrigerator according to the embodiment.

  In the figure, a heat insulating box 419 of a refrigerator 418 is formed by filling a foam heat insulating material 422 between an inner box 420 and an outer box 421 provided with a vacuum heat insulating material 421a, and has a front opening 419a and a partition. The walls 423, 423a, and 426 form a refrigerator compartment 424, a switching chamber 425, a vegetable compartment 427, and a freezer compartment 428 from above.

  Moreover, the both sides | surfaces of the partition wall 426 have the opening part 426a, and the partition wall 426 is filled with the foam heat insulating material 422 like the heat insulation box 419. FIG.

  The vegetable compartment 427 and the freezer compartment 428 are respectively closed at the front opening 419a by the vegetable compartment door 429 and the freezer compartment door 430, and the vegetable compartment 427, the vegetable compartment door 429, the freezer compartment 428 and the freezer compartment door 430 are respectively By being connected by a rail member 431, it can be drawn and slid in the front-rear direction.

  In addition, the container 433 of each storage room is mounted and fixed with the door support member 437 on the moving rail 431b after the rail member 431 is installed in the storage, and moves in synchronization with pulling out each storage room door in the front-rear direction. The container 433 is detachable upward when each storage chamber is fully opened.

  The reinforcing member 432 is a position restricting means for the rail member 431. The reinforcing member 432 is fixed to the fixed rail 431a of the rail member 431 provided on both sides of the storage chamber from the front opening 419a that allows the rail member 431 to slide in the front-rear direction. Yes. Further, the reinforcing member 432 is fixed to the inner box 420 with a distance of 10 mm or more from the vacuum heat insulating material 421a and embedded in the foam heat insulating material 422.

  In addition, on the projection surface viewed from the side surface of the heat insulating box 419, all the reinforcing members 432 are included in the vacuum heat insulating material 421a. That is, the vacuum heat insulating material 421a is always provided on the outer box 421 side of the reinforcing member 432 via the foam heat insulating material 422.

  The rail member 431 includes a fixed rail 431a, a moving rail 431b in which a door support member 437 is disposed and fixed, an intermediate traveling rail 431c provided between the fixed rail 431a and the moving rail 431b, an intermediate traveling rail 431c, and a fixed rail. It consists of a plurality of bearings 431d, which are rotation support members that support the engagement between 431a and the moving rail 431b.

  A rail member 431 having a fixed rail 431a, a movable rail 431b, and an intermediate traveling rail 431c disposed between the fixed rail 431a and the movable rail 431b via a bearing 431d is fixed in a state of being assembled in advance. The fixed rail 431a is positioned and fixed by the reinforcing member 432, and the clearance between the rails can be set to a minimum.

  Further, by providing the door reinforcement member 436 for attaching the door support member 437 on the foam insulation side of the storage compartment door, the fixing of the moving rail 431b becomes stable, and the position regulation of the rail member 431 is further ensured. Become.

  The reinforcing member 432 is independently regulated in position with the fixed rail 431a of the rail member 431, and is made of a material whose linear expansion coefficient is 1.0 to 3.0 × 10 −6 cm / cm · ° C. Yes.

  About the refrigerator comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  First, when each storage room door is pulled out, the moving rail 431b and the intermediate travel rail 431c of the rail member 431 provided on both sides of each storage room slide smoothly toward the front side as the rotation support member 431d rotates. Move.

  Along with this, the container 432 supported by the door support member 437 disposed on the rail member 431 is also pulled out to the front, and the object to be cooled stored in the container 433 can be taken out and a new object to be cooled can be stored. .

  As described above, in this embodiment, the clearance between the fixed rail 431a and the moving rail 431b can be reduced by fixing the rail member 431 in which the fixed rail 431a and the moving rail 431b are preliminarily assembled to both side walls. It is possible to configure a high-quality drawer with little play. Further, since the variation in mounting can be reduced by reducing the clearance, it is possible to suppress the appearance failure such as the inclination due to the door mounting failure and the non-uniform feeling with other doors. Further, by supporting the space between the fixed rail 431a and the moving rail 431b with a bearing 431d as a rotation support member, the moving rail 431b can move smoothly even when a load is applied to the container 433, so that the operation force of the drawer is reduced. Can improve usability.

  Further, by restricting the mounting position of the fixed rail 431a of the rail member 431 by the reinforcing member 432, the width dimension or parallelism of the pair of left and right rail members 431 can be maintained as prescribed, and the reinforcing member 432 is provided with the vacuum heat insulating material 421a. It is possible to suppress dimensional changes due to thermal shrinkage during cooling after the foamed heat insulating material 422 is filled in the heat insulating box 419 in which the heat sink is disposed.

  In the present embodiment, all the reinforcing members 432 are included in the vacuum heat insulating material 421a on the projection surface viewed from the side surface of the heat insulating box 419. The reinforcing member 432 is held by the strength of the foam heat insulating material 422 by filling the foam heat insulating material 422 of the heat insulating box body 419, but the reinforcing member 432 always has a foam heat insulating material 422 on the outer box 421 side. Since the vacuum heat insulating material 421a is provided, the outer box side of the reinforcing member 432 has a multilayer structure with the vacuum heat insulating material 421a having higher strength than the foam heat insulating material 422 in addition to the foam heat insulating material 422. As a result, the strength of the heat insulating box 419 around the reinforcing member 432 can be greatly improved, and the mounting strength of the rail member 431 provided in the reinforcing member can be further improved by further increasing the mounting strength of the reinforcing member. Can be made.

  In addition, since the rail member 431 having a small clearance between the fixed rail 431a and the moving rail 431b is preliminarily assembled and fixed to the fixing portions on both side surfaces, the dimensional system between the pair of left and right rail members 431 can be kept high. The operability at the time of pulling out the container 433 can be enhanced by the reinforcing member 432 which is a position restricting means. In addition, operability and reliability can be ensured over a long period of time.

  Further, by providing the intermediate rail 431c, it is possible to increase the pull-out allowance of the moving rail 431b of the rail member 431, and to draw out to the back of the container 433. It is possible to prevent loss due to forgetting to use the cooling object and to easily remove the container 433, thereby improving usability.

  Further, since the reinforcing member 432 in which the position of the left and right fixed rails 431a is regulated is embedded in the foam heat insulating material 422 of the heat insulating box 419 provided with the vacuum heat insulating material 421a, dew condensation and frost formation may occur when the refrigerator 418 is used. In addition, since it does not come into contact with air, the structure is excellent in corrosion resistance and inexpensive. Moreover, since it is set as the heat insulation box which arrange | positioned the vacuum heat insulating material 421a, it is hard to be influenced by the heat absorption from external air, and can aim at the energy-saving effect. Further, by applying a vacuum heat insulating material 421a having higher compressive strength and bending strength than the foam heat insulating material 422, the sliding property of the drawer door can be improved while increasing the structural strength of the heat insulating box itself.

  Further, since the reinforcing member 432 for regulating the position of the fixed rail 431a secures a distance of 10 mm or more from the vacuum heat insulating material 421a, it is possible to secure the fluidity of the foam heat insulating material 422 and to provide a heat insulating box 419 having a predetermined heat insulating performance. Can be provided.

  In addition, since the reinforcing member 432 independently regulates the position of the fixed rail 431a of the rail member 431, there is no heat leakage due to heat transfer from each storage chamber, contributing to energy saving, and miniaturization and cost reduction. You can also.

  In addition, the linear expansion coefficient of the reinforcing member 432 is set to 1.0 to 3.0 × 10 −6 cm / cm · ° C., and the operation reliability of the rail member 431 is improved by suppressing the influence of shrinkage during operation of the refrigerator 418. can do.

(Embodiment 5)
22 is a side sectional view of the refrigerator according to the fifth embodiment of the present invention, FIG. 23 is a sectional view taken along line AA of FIG. 22, FIG. 24 is an exploded view of the rail member of the refrigerator of the same embodiment, and FIG. Sectional drawing of the rail member of the refrigerator of the embodiment, FIG. 26 is a sectional view of the rail member of the refrigerator of the embodiment.

  In the figure, the heat insulating box 519 of the refrigerator 518 is filled with a foam heat insulating material 522 between the inner box 520 and the outer box 521, has a front opening 519a, and by partition walls 523a, 523b, 526, A refrigerator room 524, a switching room 525, a vegetable room 527, and a freezing room 528 are formed from above.

  Further, both side surfaces of the partition wall 526 have open portions 526a, and the partition wall 526 is filled with a foam heat insulating material 522 like the heat insulating box 519.

  Further, the vegetable compartment 527 arranged at the upper part of the partition wall 526 has a cooling temperature of about 5 ° C., and the freezing room 528 arranged at the lower part has a cooling temperature of about −20 ° C. Is set to

  The vegetable compartment 527 and the freezer compartment 528 are respectively closed at the front opening 519a by the vegetable compartment door 529 and the freezer compartment door 530, and the vegetable compartment 527, the vegetable compartment door 529, the freezer compartment 528 and the freezer compartment door 530 are respectively By being connected by a rail member 531, it can be drawn and slid in the front-rear direction.

  The rail member 531 is engaged with the fixed rail 531a, the movable rail 531b, the intermediate traveling rail 531c provided between the fixed rail 531a and the movable rail 531b, and the intermediate traveling rail 531c, the fixed rail 531a, and the movable rail 531b. A lubricant 531e having lubricity even at a low temperature is applied to a sliding portion in a range where the plurality of rotation support members 531d such as bearings move.

  Then, with the fixed rail 531a, the moving rail 531b, the intermediate traveling rail 531c, the rotation support member 531d, and the lubricant 531e pre-installed, the fixed rail 531a is fixed to both side walls of the inner box 520, and the moving rail 531b is stored in each. Each storage room and the storage room door are connected by being fixed to the room door.

  With the above configuration, the rail member 531 including the fixed rail 531a, the movable rail 531b, and the intermediate traveling rail 531c disposed between the fixed rail 531a and the movable rail 531b via the rotation support member 531d and the lubricant 531e is previously stored. It is built in, and the clearance between each rail can be set to the minimum.

  Note that the lubricant 531e has lubricity even at low temperatures, the low temperature torque of the lubricant is measured by the test method of JISK2220.18, the rotation torque is 29 N · cm or less at −30 ° C., and the test of JISK2220.7 The thing measured by the method and having a consistency of 265 or more is applied.

  In addition, as the lubricant 531e, a product approved by the USDA Group H1, a standard for food additives of the US Department of Agriculture, is applied so as to be safe for food.

  Further, at least the rotation support member 531d of the fixed rail 531a, the moving rail 531b, and the intermediate traveling rail 531c may be coated with a solid lubricating material 531f having lubricity such as fluorocarbon resin.

  Furthermore, the left and right rail members 531 fixed to the both side wall surfaces of the inner box 520 have a symmetrical shape and exhibit better slidability by providing both left and right.

  The container 532 of each storage chamber is supported by the moving rail 531b of the rail member 531 after fixing the rail member 531 to the inner box 520, and moves back and forth together with the moving rail 531b in synchronization with the pulling out of each storage chamber door in the front-rear direction. Further, the container 532 is detachable upward when each storage chamber door is fully opened.

  The fixed rails 531a of the pair of left and right rail members 531 are restricted in their fixed positions via the inner box 520 by a connecting member 533 which is a position restricting means.

  The connecting member 533 has an H-shaped cross section having a horizontal portion 533a and vertical portions 533b at both ends of the horizontal portion 533a. The horizontal portion 533a is fixed inside the partition wall 526 between the upper partition wall 526b and the lower partition wall 526c. The vertical portion 533b protrudes from the opening 526a of the partition wall 526 to the outside of the partition wall 526 and is disposed on the side of the inner box 520 filled with the foam insulation 522, so that the connecting member 533 is not exposed to each storage chamber. It has become.

  Further, both ends of the vertical portion 533b reach the vicinity of the center in the vertical direction of the vegetable compartment 527 and the freezing compartment 528, and the fixed rails 531a of the left and right rail members 531 in each storage chamber are fixed to the fixed portions 533c of the vertical portion 533b. At least the fixing portion 533c of the vertical portion 533b is in contact with the surface of the inner box 520 on the side filled with the foam heat insulating material 522. Further, the left and right vertical portions 533b are provided with holes 533d.

  In addition, when the connecting member 533 becomes large, the connecting member 533 is divided into a plurality of front and rear parts, each having a horizontal portion 533a, a vertical portion 533b, and a fixing portion 533c, and if the hole 533d is provided as necessary, the connecting member 533 is integrated. The same effect as that obtained can be obtained.

  The connecting member 533 is preferably formed of a material having a linear expansion coefficient of 1.0 to 3.0 × 10 −6 cm / cm · ° C. Moreover, it is desirable to form with the material whose heat conductivity is 0.1-0.2 W / m * K.

  Further, for example, a roller or the like may be used as the rotation support member 531d.

  About the refrigerator comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  First, when each storage room door is pulled out, the moving rail 531b and the intermediate traveling rail 531c of the rail member 531 provided on both sides of each storage room rotate the rotation support member 531d and the movement of the rotation support member 531d. The lubricant 531e applied to the range slides smoothly toward the front side.

  Along with this, the container 532 supported by the rail member 531 is also pulled out to the front, so that the object to be cooled stored in the container 532 can be taken out and a new object to be cooled can be stored.

  As described above, in the present embodiment, the rail member 531 in which the fixed rail 531a and the movable rail 531b are assembled in advance is fixed to both side walls of the inner box 520, whereby the clearance between the fixed rail 531a and the movable rail 531b is increased. It can be made small, and a high-quality drawer with little backlash can be configured. In addition, since the variation in mounting can be reduced by reducing the clearance, it is possible to suppress the appearance defect such as the inclination due to the door mounting failure and the non-uniform spacing with other doors. These effects are more effective as the allowance for the rail member 531 is larger. Further, by supporting the space between the fixed rail 531a and the moving rail 531b with the rotation support member 531d and the lubricant 531e, even when a load is applied to the container 532, the moving rail 531b can move smoothly, thereby reducing the operation force of the drawer. It is possible to improve usability.

  In addition, since the lubricant 531e having lubricity even at low temperatures is applied to the sliding portion in the range in which the plurality of rotation support members 531d such as bearings move, the moving rail can be surely smoothly even when a load is applied to the container. Therefore, the operation force of the drawer can be reduced and the usability can be improved.

  In addition, the lubricant 531e has a lubricity even at low temperatures, and the low temperature torque of the lubricant is measured by the test method of JISK2220.18, and the rotational torque is 29 N · cm or less at −30 ° C., and the test of JISK2220.7 Since the consistency measured by the method is 265 or more, smooth movement of the rail member from the low temperature to the high temperature can be ensured.

  Even in a storage room having a refrigeration temperature zone that has been increasing in capacity in recent years, a high-grade rail member can be provided, and the width of the refrigeration temperature zone is approximately -6 ° C or less, High lubrication reliability can be ensured in a storage room having a refrigeration temperature zone of −18 ° C. or lower, and smooth movement of the rail member can be reliably obtained in a low temperature zone.

  Also, as the lubricant 531e is applied to the US Department of Agriculture standards for food additives, approved by the USDA Group H1 so that it is safe for food, the lubricant 531e should touch foods by any chance. However, there is no effect on the human body, and food safety can be ensured.

  Further, by applying the lubricant 531e, the rail member 531 having the same specification can be applied to the vegetable compartment 527 and the freezing compartment 528, and the rail member can be shared in the storage compartment in the temperature range from freezing to refrigeration. And cost reduction can be achieved.

  Further, by restricting the mounting position of the fixed rail 531a of the rail member 531 by the connecting member 533, the width dimension or parallelism of the pair of left and right rail members 531 can be maintained as prescribed, and the connecting member 533 allows the heat insulating box body 519 to be maintained. Both sides of the inner box 520 are assembled with rail members 531 in which the clearance between the fixed rail 531a and the movable rail 531b is set small in advance by suppressing dimensional changes due to thermal shrinkage or the like during cooling after filling with the foam insulation 522. Since the dimensional accuracy between the pair of left and right rail members 531 can be kept high as a specification to be fixed to the wall surface, the operability when the container 532 is pulled out can be enhanced by the connecting member 533 as the position restricting means, and the fixed rail 531a. A rotating support member 531d and a lubricant 531e support the moving rail 531b. Since it has to be able to achieve even ensure operation reliability for a long time is prevented, such as wear of the sliding portion.

  Further, by providing the intermediate traveling rail 531c, the pulling allowance of the moving rail 531b of the rail member 531 can be increased, so that it can be pulled out to the inner part of the container 532, and can be overlooked to the inner part of the container 532, Loss due to forgetting to use the object to be cooled in the container 532 can be prevented, and the container 532 can be easily attached to and detached from the rail member 531, so that the usability can be improved.

  In particular, when it is desired to pull out the container 532 having a larger depth in each storage room to the near side, the intermediate traveling rail 531c is provided, which is effective for the strength and operability of the rail member 531 when being pulled out.

  Further, since the connecting members 533 are not exposed in the respective storage chambers, it is possible to suppress a reduction in the storage volume as compared with the case where the connecting members 533 are arranged in the respective storage chambers.

  Further, when the connecting member 533 is formed of a metal material, it is possible to prevent injuries due to the edge of the end face, so that safety can be improved, and furthermore, the edge deletion process of the end face can be abolished, so that the cost can be reduced.

  Moreover, since the connecting member 533 that connects the left and right fixed rails 531a is embedded in the foam heat insulating material 522 of the heat insulating box 519, it is possible to prevent condensation and frost formation of the connecting member 533 when the refrigerator 518 is used. Further, since the connecting member 533 does not come into contact with air, the corrosion resistance of the connecting member 533 can be improved, and the rust prevention treatment of the connecting member 533 can be reduced, so that the cost can be reduced.

  Further, since the foam heat insulating material 522 is provided around the connection member 533, the attachment strength of the connection member 533 is improved, and the reliability of position regulation and the attachment strength of the rail member 531 can be improved.

  Moreover, since the partition wall 526 which partitions the heat insulation box 519 into the vegetable compartment 527 and the freezer compartment 528 is provided, and the connection member 533 which connects the right and left fixed rails 531a is provided inside the partition wall 526, a plurality of storage spaces are provided. When it has, reduction of the storage internal volume by arrange | positioning the connection member 533 can be suppressed.

  In addition, the vegetable room 527 and the freezing room 528 adjacent to each other are provided with rail members 531, and the fixed rails 531a of the rail members 531 are integrally fixed by the connecting members 533, so that the operability of a plurality of storage rooms is improved. It can be increased at the same time.

  In addition, the connecting member 533 has an H-shaped cross section having vertical portions 533b at both ends, and the vegetable chamber 527 and the stationary rail 531a of the rail member 531 of the freezing chamber 528 that are vertically adjacent to the vertical portion 533b are integrally fixed. By fixing the fixed rails 531a of the plurality of rail members 531 to one connecting member 533, it is possible to reduce the cost by reducing the number of parts.

  Further, since the holes 531c are provided in the vertical portions 531b at both ends of the connecting member 533, heat transfer from the connecting member 533 is suppressed when the temperature zones of the plurality of storage chambers are different, and dew condensation on the storage chamber side having a high temperature zone is suppressed. And increase in power consumption due to heat leakage can be suppressed.

  Note that the heat transfer amount can be effectively reduced by providing a plurality of holes 531c provided in the vertical portion 531b to such an extent that the strength can be maintained.

  Further, when the fixed rails 531a of the pair of left and right rail members 531 are connected in the front-rear direction by a plurality of connecting members 533, the connecting member 533 is divided into a plurality of parts, particularly when the rail members 531 are used in a large refrigerator. Accordingly, the size of the connecting member 533 can be reduced, so that the cost can be reduced.

  Further, the connection member 533 contracts during operation of the refrigerator 518 by forming the connection member 533 with a material having a low linear expansion coefficient of 1.0 to 3.0 × 10 −6 cm / cm · ° C. Since the influence on the operability due to this can be reduced, the operation reliability of the rail member 531 can be improved.

  In addition, since the thermal conductivity of the connecting member 533 is 0.1 to 0.2 W / m · K, the connecting member is formed with a material having a low thermal conductivity, particularly when the temperature zones of the plurality of storage chambers are different. Heat transfer from 533 can be suppressed, and condensation on the side of the storage room having a high temperature zone can be prevented, and an increase in power consumption due to heat leakage can be suppressed.

  In this embodiment, the rail member 531 and the container 532 are common to the vegetables 527 and the freezer compartment 528. However, it is more costly to use materials formed of different materials for each storage compartment depending on the actual storage form. Reduction and improvement in reliability can be achieved.

  The connecting member 533 is made of a material having a linear expansion coefficient of 1.0 to 3.0 × 10 −6 cm / cm · ° C. and a thermal conductivity of 0.1 to 0.2 W / m · K. In terms of linear expansion coefficient, metals are 1.0 to 3.0 × 10 −6 cm / cm · ° C. and resins are 1.0 to 15.0 × 10 −5 cm / cm · ° C. Is 1.0 to 400.0 W / m · K for metals and 0.1 to 0.2 W / m · K for resins.

  Therefore, when the mounting position accuracy of the rail member 531 is required during operation of the refrigerator 518, a metal having a low linear expansion coefficient is used as the material of the connecting member 533, and condensation on the storage room side having a high temperature zone is prevented. When it is required to suppress an increase in power consumption due to heat leakage, it is desirable to use resins having a low thermal conductivity. Moreover, you may integrate and use both with respect to several storage chambers.

  In this embodiment mode, the vegetable room 527 and the freezing room 528 are described as using the rail member 531. However, the present invention can be appropriately applied to a storage room provided with a drawer container. For example, you may use for the switching room 525 located in the upper part of the vegetable room 527, the ice making room (not shown) attached to the side of the switching room 525, etc.

  In the present embodiment, the connecting member 533 has a horizontal portion 533a and an H-shaped cross section having vertical portions 533b at both ends of the horizontal portion 533a, and the rail members 531 of the vegetable compartment 527 and the freezing compartment 528 are fixed integrally. As described above, a connecting member having a U-shaped cross section having vertical portions at both ends may be used for each of the vegetable compartment 527 and the freezing compartment 528. In this case, in a refrigerator in which the vegetable compartment 527 and the freezing compartment 528 are not provided vertically, it is possible to provide an easy-to-use drawer with a small operation force even when a high quality and load with little backlash are applied. In addition, heat transfer from the connecting member is further suppressed when the temperature zones of the plurality of storage chambers are different compared to when a plurality of rail members are fixed to one connecting member, and condensation on the storage chamber side having a high temperature zone is prevented. And increase in power consumption due to heat leakage can be suppressed.

  Note that the fixed rails of the pair of left and right rail members may be connected by a plurality of connecting members. In this case, since the connecting member can be reduced in size by dividing the connecting member into a plurality of parts, the cost can be reduced and the weight can be reduced.

  As described above, the refrigerator according to the present invention has a small amount of rattling, and can smoothly open and close the drawer even when a load is applied to the container. It can also be applied to applications such as a cooling storage drawer.

Side sectional view of the refrigerator according to Embodiment 1 of the present invention. AA sectional view of FIG. Schematic assembly diagram of the refrigerator of the same embodiment An exploded view of the rail member of the refrigerator of the same embodiment Sectional drawing of the rail member of the refrigerator of the embodiment Side sectional view of the refrigerator in the second embodiment of the present invention. AA sectional view of FIG. Schematic assembly diagram of the refrigerator of the same embodiment An exploded view of the rail member of the refrigerator of the same embodiment Sectional drawing of the rail member of the refrigerator of the embodiment Side sectional view of the refrigerator according to Embodiment 3 of the present invention. AA sectional view of FIG. Schematic assembly diagram of the refrigerator of the same embodiment B arrow view of the door part of FIG. CC sectional view of FIG. DD sectional view of FIG. Side sectional view of the refrigerator according to Embodiment 4 of the present invention. 17 is an enlarged view of the main part of FIG. AA sectional view of FIG. An exploded view of the rail member of the refrigerator of the same embodiment Sectional drawing of the rail member of the refrigerator of the embodiment Side sectional view of the refrigerator in the fifth embodiment of the present invention. AA sectional view of FIG. An exploded view of the rail member of the refrigerator of the same embodiment Sectional drawing of the rail member of the refrigerator of the embodiment Sectional drawing of the refrigerator rail member of the embodiment Perspective view of a conventional drawer drawer door Sectional view of the main part of a conventional refrigerator drawer device Sectional view of a conventional refrigerator drawer device

Explanation of symbols

18, 218, 318, 418, 518 Refrigerator 19, 219, 319, 419, 519 Insulation box 19a, 219a, 319a, 419a, 519a Front opening 20, 220, 320, 420, 520 Inner box 21, 221, 321 , 421, 521 Outer box 22, 222, 322, 337, 422, 522 Foam insulation 24, 226, 326, 426, 526 Partition wall 27, 227, 327, 427, 527 Vegetable room 28, 228, 328, 428, 528 Freezer compartment 31, 231, 332, 431, 531 Rail member 31a, 231a, 332a, 431a, 531a Fixed rail 31b, 231b, 332b, 431b, 531b Moving rail 31c, 231c, 332c, 431c, 531c Intermediate traveling rail 31d, 231d, 332d, 31d Bearing 32, 232, 333, 433, 532 Container 32a Small container 29, 30, 229, 230, 329, 330, 429, 430, 529, 530 Door 332ca Front end of intermediate running rail 334f Rear end of door support member 334, 437 Door support member 531e Lubricant 531f Solid lubricant material

Claims (15)

  An inner box, an outer box, a heat insulating box having a front opening provided with a heat insulating material filled between the inner box and the outer box, a container provided inside the heat insulating box, and the In a drawer-type storage chamber consisting of a door provided on the front side of the container, it has a rail member that enables the container to move back and forth, and the rail member is a fixed rail provided on the heat insulating box side, A movable rail provided on the door side, an intermediate traveling rail connecting the fixed rail and the movable rail; the door includes a door support member, and the movable rail is fixed to the door support member. In addition, the refrigerator is configured such that the container is engaged, and a drawer allowance of the drawer door is larger than a depth inside dimension of the container at a maximum open position of the drawer-type storage chamber.   In the maximum open position of the drawer-type storage chamber, a depth interval between the rear surface of the drawer-type storage chamber provided with the container and the front surface of the door immediately above the drawer-type storage chamber provided with the container. The refrigerator according to claim 1, wherein the size is larger than the outer depth of the container.   The refrigerator according to claim 1 or 2, wherein the overall length of the moving rail of the rail member is set larger than that of the fixed rail.   The refrigerator according to any one of claims 1 to 3, wherein a front end portion of the intermediate traveling rail is located on the front side of a rear end portion of the door support member at a maximum open position of the drawer-type storage chamber.   The refrigerator according to any one of claims 1 to 4, wherein the door support member and the moving rail are fixed with screws.   The door support member and the moving rail are fixed by a plurality of different means, and the fixed portion located on the door side among the plurality of fixed portions is the door support member and the moving rail fixed by screws. refrigerator.   The heat insulation box has a plurality of drawer-type storage chambers, each of the plurality of drawer-type storage chambers includes a rail member, and the position of the fixed rail of each rail member is restricted and fixed by an independent reinforcing member. The refrigerator as described in any one of 6.   The refrigerator according to any one of claims 1 to 7, wherein a small container shallower than the container is provided in an upper part of the container.   The refrigerator according to any one of claims 1 to 8, wherein the height of the upper end of the drawer storage room is set to 1000 mm or less from the floor surface.   The drawer-type storage chamber is provided with a self-closing means for self-closing a door when the drawer-type storage chamber is closed, and the self-closing means is provided on a rail member that can move the drawer-type storage chamber. The refrigerator as described in any one of 1 to 9.   The refrigerator as described in any one of Claim 1 to 10 which apply | coated the lubricant to the sliding part of the rail member which can move a drawer-type storage chamber.   The refrigerator according to claim 11, wherein the lubricant is applied to a range in which the rotation support member moves.   The refrigerator according to claim 11 or 12, wherein the lubricant is a solid lubricant material.   The refrigerator according to any one of claims 1 to 13, wherein a rail member is applied to a storage room in a freezing temperature zone.   The heat insulating box is filled with a foam heat insulating material between the inner box and the outer box, and after the heat insulating box is formed by filling the foam heat insulating material, the drawer-type storage chamber can be moved. The refrigerator as described in any one of Claim 1 to 14 to which the rail member to be attached was attached.

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