JP2006214642A - Refrigerator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a refrigerator having a drawer of little rattling, high quality, small control force even in application of load, and high usability, with respect to the refrigerator comprising a drawer device. <P>SOLUTION: A rail member 31 is composed of a fixed rail 31a, a moving rail 31b, an intermediate traveling rail 31c mounted between the fixed rail 31a and the moving rail 31b, and a plurality of bearings 31d as rotation supporting members for supporting engagements of the intermediate traveling rail 31c, and the fixed rail 31a and the moving rail 31b, and the fixed rail 31a is fixed to an upper face of a partitioning wall 26 or a bottom wall face of an inner housing 20 in a state that the fixed rail 31a, the moving rail 31b, the intermediate traveling rail 31c and the bearings 31d are incorporated in advance. As the moving rail 31b is fixed to each refrigerating compartment door, it can be smoothly moved, and the control force for the drawer can be reduced. Thus 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. 7 is a perspective view of a drawer door of a conventional refrigerator. FIG. 8 is a cross-sectional view of a main part of a conventional refrigerator drawer device. FIG. 9 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 comprised by the case 15 made. 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.

  Then, the movable roller 3 attached to the rear end of the frame 2 fixed in advance to the left and right sides of the door back surface of the door 1 is inserted into the groove 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 back surface of the door 1 is used by being incorporated in the fixed rail 5 attached in advance to the refrigerator main body side, the mounting variation of the frame 2 or the fixed rail 5 and the assemblability are reduced. In consideration of the above, a certain amount of clearance is set between the rail and the roller in the assembled 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.

  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 is such that a rail member in which a fixed rail and a moving rail are incorporated in advance is fixed to the inner box bottom wall surface, and then the container is supported by the rail member. .

  As a result, the clearance between the fixed rail and the moving rail can be reduced, and a high-quality drawer with little backlash can be configured.

  Further, by supporting the space between the fixed rail and the moving rail with the rotation support member, the moving rail can move smoothly even when a load is applied to the container, so that the operation force of the drawer can be reduced.

  The refrigerator of the present invention has a small backlash and can smoothly open and close the drawer even when a load is applied to the container, and can constitute a drawer storage that is high quality and easy to use.

  The invention according to claim 1 includes an inner box, an outer box, and a refrigerator including a heat insulating box body having a front opening made of a foam heat insulating material filled between the inner box and the outer box. A rail member that can move the container back and forth is provided on the bottom surface, and the rail member has a fixed rail and a moving rail, and the fixed rail and the moving rail are supported by a rotation support member, respectively. The rail member is fixed to the inner box bottom wall surface in a state of being assembled in advance, and then the container is supported on the rail member, and the rail member in a state in which the fixed rail and the moving rail are previously assembled is fixed to the inner box bottom wall surface. As a result, the clearance between the fixed rail and the movable rail can be reduced, and a high-quality drawer with little backlash can be configured. Also, by supporting the space between the fixed rail and the moving rail with a rotation support member, even when a load is applied to the container, the moving rail can move smoothly, reducing the operating force of the drawer and improving usability. Can be measured.

  The invention according to claim 2 is the invention according to claim 1, further comprising position restricting means for restricting the fixed position of the fixed rail of the lower rail member, and by restricting the position of the rail member. It is possible to ensure the operability of the rail member and the assembly reliability.

  The invention according to claim 3 is the invention according to claim 1 or 2, further comprising an intermediate traveling rail between the fixed rail and the moving rail of the rail member, the intermediate traveling rail, the fixed rail, and the moving rail, Is supported by a rotation support member, and the movement support rail can be slid back and forth by the rotation support member. By providing an intermediate travel rail, the pull-out allowance of the rail member can be improved. Therefore, it can be pulled out to the inner part of the container, and it can be looked up to the inner part of the container, so that it is easy to prevent loss due to forgetting to use the container contents and to attach / detach the container to / from the rail member. Can be improved. Further, by providing the intermediate traveling rail, the clearance between the fixed rail and the moving rail of the rail member can be set to the minimum.

  According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, a concave portion is formed on the inner box bottom wall surface, and a rail member is housed and fixed in the concave portion. By storing the rail member in the concave portion, it is possible to suppress a reduction in the storage volume of the container provided in the warehouse as compared with the case where the rail member is not stored in the concave portion.

  The invention according to claim 5 is the foam insulation according to any one of claims 1 to 4, wherein the connecting member for connecting the lower fixed rail and the left and right fixed rail are connected to each other through the inner box. It is attached before filling. The reduction of the storage internal volume can be suppressed as compared with the case where the connecting member is arranged in the storage chamber. Further, by embedding in the foam heat insulating material, it is possible to prevent condensation and frost formation of the connecting member during use of the refrigerator, and furthermore, since it does not come into contact with air, the corrosion resistance of the connecting member can be improved.

  According to a sixth aspect of the present invention, in the invention according to any one of the first to fourth aspects, the connecting member for connecting the lower fixed rail is the foamed heat insulating material before the connecting member for connecting the lower fixed rail is filled with the foamed heat insulating material. It is attached after filling the material. Compared to the case where the connecting member is placed in the storage chamber, the storage volume can be reduced, and by embedding it in the foam insulation, it is possible to prevent condensation and frost formation on the connecting member when using the refrigerator. Furthermore, since it does not contact with air, the corrosion resistance of the connecting member can be improved. Further, by attaching the fixed rail after filling with the foam heat insulating material, the fixed rail can be easily replaced when it is damaged or deteriorated.

  The invention according to claim 7 is the invention according to any one of claims 1 to 4, wherein the connecting member for connecting the lower fixed rail and the lower fixed rail are attached after filling with the foam heat insulating material. It is. By attaching the connecting member and the fixed rail after filling the foamed heat insulating material, the connecting member and the fixed rail can be easily replaced when they are damaged or deteriorated.

  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 of FIG. 1, and FIG. 3 is a perspective view of a rail member mounting portion of the refrigerator according to the same embodiment. FIG. 5 is an exploded view of the rail member of the refrigerator according to the embodiment, and FIG. 6 is a cross-sectional view of the rail member of the refrigerator according to the embodiment.

  1 to 6, a heat insulating box body 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. 26, the storage room forms a refrigerator room 24, a switching room 25, a vegetable room 27, and a freezer room 28 from above.

  Moreover, the both sides | surfaces of the partition wall 26 have the opening part 26c, and the foaming heat insulating material 22 is filled into the partition wall 26 like the heat insulation box 19. FIG.

  In addition, the vegetable compartment 27 arranged at the upper part of the partition wall 26 has a cooling temperature of about 5 ° C., and the freezer compartment 28 arranged at the lower part has a cooling temperature of about −20 ° C. Is set to

  The vegetable compartment 27 and the freezer compartment 28 are respectively closed at the front opening 19a by a vegetable compartment door 29 and a freezer compartment door 30, and the vegetable compartment 27, the vegetable compartment door 29, the freezer compartment 28, and the freezer compartment door 30 are respectively. By being connected by the rail member 31, it can be drawn and slid in the front-rear direction.

  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. A partition wall which is made up of a plurality of bearings 31d, which are rotation support members that support the food, and in which the fixed rails 31a, the moving rails 31b, the intermediate running rails 31c, and the bearings 31d are preliminarily assembled, 26 is fixed to the bottom wall surface of the inner box 20 corresponding to the top surface of the freezer compartment 28 or the bottom surface of the freezer compartment 28, and the moving rail 31b is fixed to each storage compartment door to connect the respective storage compartments to the storage compartment doors.

  In addition, the rail member 31 which consists of the fixed rail 31a, the moving rail 31b, and the intermediate | middle traveling rail 31c arrange | positioned via the bearing 31d between the fixed rail 31a and the moving rail 31b is integrated beforehand, The clearance between the rails can be set to a minimum.

  Furthermore, the pair of left and right rail members 31 fixed to the upper surface of the partition wall 26 and the bottom wall surface of the inner box 20 have the same shape or a symmetrical shape, and exhibit better sliding performance by providing both left and right.

  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 synchronization with pulling out each storage chamber door in the front-rear direction. Further, the container 32 is detachable upward when each storage chamber door is fully opened.

  The fixed rails 31a of the pair of left and right rail members 31 are restricted in their fixed positions via the partition wall 26 or the inner box 20, respectively, by a connecting member 33 which is a position restricting means.

  Since the connecting member 33 is disposed on the partition wall 26 or the inner box 20 on the side filled with the foamed heat insulating material 22, the connecting member 33 is structured not to be exposed in each storage chamber.

  In addition, the fixed rails 31a of the left and right rail members 31 in each storage chamber are fixed to the fixed portion 33 and are in contact with the surface of the inner box 20 on the side filled with the foam heat insulating material 22. Further, the fixing portion 33 is provided with a hole 33d.

  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 31b of the rail member 31 and the intermediate traveling rail 31c provided on both sides of each storage chamber slide smoothly toward the front side as the bearing 31d rotates. .

  Along with this, the container 32 supported by the rail member 31 is also pulled out to the front, so that 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, in the present embodiment, the fixed rail 31a and the movable rail 31b are fixed by fixing the rail member 31 in a state in which the fixed rail 31a and the movable rail 31b are previously assembled to the partition wall 26 or the bottom wall surface of the inner box 20. And a high-quality drawer with little backlash can be configured. 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 31a 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 partition wall 26 or the heat insulation. By restricting the dimensional change due to thermal shrinkage or the like during cooling after filling the foam heat insulating material 22 of the box body 19, the rail member 31 in which the clearance between the fixed rail 31a and the moving rail 31b is set small is partitioned in advance. Since the dimensional accuracy between the pair of left and right rail members 31 can be kept high even in the specification of fixing to the upper surface of the wall 26 or the bottom wall surface of the inner box 20, the operability when the container 32 is pulled out can be controlled by the connecting member 33 which is a position restricting means. Can be increased. In addition, it is possible to ensure operation reliability over a long period of time.

  In addition, by providing the intermediate traveling rail 31c, the pull-out allowance of the moving rail 31b of the rail member 31 can be increased, so that it can be pulled out to the inner part of the container 32 and can be overlooked to the inner part of the container 32, Loss due to forgetting to use the object to be cooled in the container 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.

  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.

  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. Furthermore, since the connecting member 33 does not come into contact with air, the corrosion resistance of the connecting member 33 can be improved.

  Further, when the partition wall 26 or the inner box 20 is provided with a recess, and the rail member 31 is stored and fixed in the recess, and the rail member 31 is stored in the recess so that the rail member 31 is not stored in the recess. Compared to the above, it is possible to suppress the reduction of the storage volume of the container 32 provided in the warehouse.

  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 the switching room 25 located in the upper part of the vegetable compartment 27, the ice making room (not shown) attached to the side of the switching room 25, etc.

  Note that the fixed rails 31a of the pair of left and right rail members 31 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.

  Needless to say, the door and the moving rail 31b may be fixed directly, or may be fixed via the door / moving rail fixing member 34 or the like.

  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 line sectional view of FIG. The perspective view of the rail member attachment part of the refrigerator of the embodiment 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 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

DESCRIPTION OF SYMBOLS 18 Refrigerator 19 Heat insulation box 19a Front opening 20 Inner box 21 Outer box 22 Foam insulation 26 Partition wall 27 Vegetable room 28 Freezer room 31 Rail member 31a Fixed rail 31b Moving rail 31c Intermediate traveling rail 31d Bearing (rotation support member)
32 Container 33 Connecting member 34 Door / moving rail fixing member

Claims (7)

  In a refrigerator having a heat insulation box having a front opening made of an inner box, an outer box, and a foam heat insulating material filled between the inner box and the outer box, the container provided inside can be moved back and forth. A rail member is provided in a lower part of the storage chamber, and the rail member has a fixed rail and a moving rail. The fixed rail and the moving rail are supported by a rotation support member, respectively, and the fixed rail and the moving rail are assembled in advance. The rail member is fixed to the inner box bottom wall surface, and then the rail member receiving portion is provided on the bottom surface of the container.   The refrigerator according to claim 1, further comprising position restricting means for restricting a fixed position of the fixed rail of the lower rail member.   An intermediate traveling rail is provided between the fixed rail and the moving rail of the rail member, and the engagement between the intermediate traveling rail, the fixed rail and the moving rail is supported by a rotation support member, and the movement rail is moved forward and backward by the rotation support member. The refrigerator according to claim 1 or 2, wherein the refrigerator is slidable.   The refrigerator according to any one of claims 1 to 3, wherein a recess is formed in the inner wall surface of the inner box, and a rail member is housed and fixed in the recess.   The position restricting means is a connecting member for connecting a fixed rail of a lower rail member, and the connecting member and the fixed rail are attached before filling with foamed heat insulating material. The refrigerator described.   The refrigerator according to any one of claims 1 to 4, wherein the connecting member is attached before filling with the foam insulation, and the fixed rail is attached after filling with the foam insulation.   The refrigerator according to any one of claims 1 to 4, wherein the connecting member and the fixed rail are attached after filling with the foam heat insulating material.

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