JP2007093130A - Refrigerator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a refrigerator having higher quality construction with a drawable container for suppressing the right-and-left run out of a door and a container when drawing supporting frames to actualize stable sliding operation without increasing the number of components to increase a weight and cost for a rigid supporting structure. <P>SOLUTION: The refrigerator comprises the drawable door 10 for openably closing a front face opening portion of a storage chamber 9, a pair of right and left supporting frames 12 fixed to the inner face of the door drawably together with the door opened, the container 15 held between the supporting frames, and rail members 16 arranged on both sides of the storage chamber for slidably supporting the supporting frames. Protruded portions protruded inside the chamber are formed at the vertical positions of the rail members near the front face opening portion in opposition to the supporting frames. At least during drawing the door, a gap C between the supporting frame and the rail member is substantially smaller. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a refrigerator in which a storage container is taken in and out by a drawer door, and more particularly to a door in which the door and the container are prevented from swinging left and right when being pulled out.

  In recent years, refrigerators have been trending toward larger storage capacity as life has diversified. As a form, a refrigerator room with the largest storage capacity is installed at the top, a vegetable room at the bottom, and storage at the bottom. There are many types in which ice making chambers and temperature switching chambers having relatively small volumes are provided separately on the left and right in the width direction, and a freezing chamber is installed at the bottom.

  The refrigerating room is closed in a rotating manner by a door pivoted on one side in the vicinity of the front opening or by a double door, and the vegetable room, the freezer room, the ice making room, and temperature switching In many chambers, a container is attached to the storage chamber side of the door and a drawer type is provided in the front and rear direction for the convenience of taking in and out the stored items.

  Conventionally, a drawer-type door container structure in a refrigerator has, as shown in FIG. 10 which is a transverse sectional view of a drawer door, a drawer door (51 ) Is fixed to a pair of left and right support frames (52) that hold a container (not shown) that extends to the inside of the storage chamber, and the support frames (52) are attached to both sides of the storage chamber via pulleys (53) and (57). By being slidably arranged along the provided rail (56), it can be pulled out in conjunction with opening and closing of the door (51).

The support frame (52) pulled out when the door is opened receives a lower surface of the support frame (52) by a pulley (57) provided in the vicinity of the opening of the storage chamber, and is attached to the rear end of the support frame ( 53) is supported by the front and rear two points supported by the rail (56) (see, for example, Patent Document 1).
JP-A-8-296957

  However, the support structure in which the door (51) and the container in the pulled out state are supported only at two short points between the fulcrums at the rear end of the container as described above in order to increase the amount of the container to be pulled out as much as possible. When the door (51) is swung to the left and right as shown by the arrows with the support frame (52) pulled out due to the presence of a gap in the width direction resulting from the engagement of the related parts for pull-out and the assembly configuration, In addition, there is a problem that if the direction of pushing in when the door is closed shifts, the balance is lost and the sliding direction is not determined, and the door and the container are closed while swinging left and right.

  In recent years, in particular, from the viewpoint of reducing the number of parts for the purpose of cost reduction, there is an increasing number of configurations in which the connecting material between the rear ends of the support frame (52) is omitted, and the above-described left-right deflection becomes significant. It was.

  The present invention has been made paying attention to this point, and in order to make the support structure robust, the number of parts is increased and the weight and cost are not increased. An object of the present invention is to provide a refrigerator capable of suppressing a shake and performing a stable sliding action and improving the quality as a drawer container configuration.

  The refrigerator of the present invention is held between the support frame, a drawer-type door that closes the front opening of the storage room so as to be freely opened and closed, a pair of left and right support frames that are fixed to the inner surface of the door and pulled out together with the open door. And a rail member disposed on both sides of the storage chamber for slidably supporting the support frame, and a convex portion to the indoor side at a vertical position facing the support frame of the rail member in the vicinity of the front opening. And at least when the door is pulled out, the gap between the support frame and the rail member is arranged to be substantially reduced.

  According to the present invention, even in the process of pulling out the door for storing and taking out stored foods and in the state of being pulled out to the maximum, the door and the container are smoothly slid without swinging left and right, and are stable after being pulled out. A high-quality drawer door can be obtained with a simple configuration.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a longitudinal sectional view of a refrigerator (1) showing an open state of a door by a two-dot chain line, and is stored in an inner box (4) provided via a heat insulating material (3) inside an outer box (2). A space is formed and divided into a plurality of storage rooms by a heat insulating partition wall (5). (6) is a refrigerating room arranged at the upper part of the main body, and a hinged refrigerating room door is pivotally supported by hinges provided on both sides of the front opening so as to close the opening.

  In the lower part of the refrigerator compartment (6), a relatively small volume temperature switching chamber (7) and an ice making chamber (not shown) are arranged side by side through a heat insulation partition wall (5), and a heat insulation partition is placed below the compartment. A vegetable room (8) for storing vegetables and the like is disposed through a wall (5), and a freezing room (9) for storing frozen food is disposed at the bottom.

  These storage rooms other than the refrigerating room (6) have a drawer door system as shown by a two-dot chain line in FIG. 1 because they have a smaller storage capacity than the refrigerating room and are easy to use depending on the installation height position. .

  Hereinafter, the configuration will be described by taking the freezer compartment (9) as an example. As shown in FIG. 2, which is a schematic side view of the drawer state of the door (10), a support with a pulley A (13) attached to the rear end on the indoor side of the door (10) closing the front opening of the freezer compartment. A frame (12) is provided, and a container (15) held on the support frame (12) is slidable back and forth by a rail member (16) disposed on the freezer compartment side wall.

  At the rear of the container (15), there are arranged a blow-out duct for guiding the low-temperature cold air generated by the cooler into the freezer compartment (9) and a return duct for returning the cool air circulated through the room back to the cooler. A gasket made of soft synthetic resin is inserted into the inner peripheral edge of the freezer compartment door (10) arranged in the front opening of (9), and the inside of the freezer compartment (9) is sealed when the door is closed. It is configured to do.

  As shown in FIG. 3 which is a front view showing the support portion of the container (15), and in FIG. 4 which is a perspective view of the main portion with the door (10) pulled out to the maximum, the rail member (16) is synthesized. The resin (injection-molded) part of the rail (16a) has a substantially U-shaped cross section, and is installed on the left and right side walls of the inner box (4) in the upper part of the freezer compartment (9).

  A pair of left and right support frames (12), which are attached to the inner surface of the door (10) and extend perpendicularly from both sides of the door to the indoor side, have a cross-section with a reinforcing bead extending back and forth on the plate surface. It consists of a rigid metal plate with a letter shape, and upper and lower end edges are formed with flanges (12a) and (12b) that are bent in an L shape toward the opposite outer rail member (16). The lower surface of the lower L-shaped flange (12a) is received by the pulley B (17) provided at the lower front portion of the rail (16a), and the pulley A ( 13) is slid into the rail (16a).

  And, as can be understood from FIG. 5 which is a sectional view from the front showing the engagement relationship between the support frame (12) and the container (15), the container is placed on the L-shaped flange (12b) formed above. By engaging the edge (15a) formed on the periphery of the upper opening of (15), the container (15) is placed between the left and right support frames (12) (12), and the door (10) The container (15) and the support frame (12) are slidably held in the rail (16a), and are pulled out of the room together with the door opening operation to store and take out food from the upper surface opening of the container (15).

  That is, when the freezer compartment door (10) is opened and the container (15) is pulled out, the support frame (12) supporting the container (15) has its front lower end at the pulley B (17). The pulley A (13) at the rear end is supported and held in the rail (16a), and the support frame (12) is slid forward by the pulleys A (13), B (17) and the rail (16a). By doing so, the container (15) placed on the support frame (12) is pulled out, and the stopper (12c) protruded downward from the rear part of the L-shaped part (12a) of the support frame (12). The forward movement is stopped by contacting the pulley B (17). Then, the L-shaped flange (12a) which is the bottom of the support frame (12) is applied to the pulley B (17), and the pulley A (13) at the rear end of the support frame (12) is applied to the upper surface in the rail (16a). The door (10) and the container (15) are held in a pulled out state by supporting the front and rear two points.

  Thus, in the upper and lower positions facing the support frame (12) of the rail member (16) in the vicinity of the front opening, as shown in more detail in FIG. Part B (19) is formed. That is, the convex portion A (18) is disposed opposite to the lower flange portion (12a) of the support frame (12), and the convex portion B (19) is disposed opposite to the upper flange portion (12b). To make it smaller.

  Note that the width of the upper and lower flanges (12a ') (12b') at the rear end of the support frame (12) on the far side of the room can be understood from FIG. 7, which is a perspective view from above the front part in the pulled-out state. FIG. 4 is a cross-sectional view taken along the line AA of FIG. 4 when the container (15) is pulled out to the maximum position by slightly expanding toward the convex portions A (18) and B (19). As shown in FIG. 8, the gap C ′ between the tips of the upper and lower flanges (12b ′) (12a ′) and the projections A (18) and B (19) of the rail member (16) is further reduced to about 2 mm. It is comprised so that it may become.

  At this time, for example, when the convex portion is only the lower convex portion A (18), the support frame (12) slides in the rail (16a) by pulling out the door (10), and the left and right The lower flange part (12a) of the support frame comes into contact with the convex part A (18). Due to the abutment, the lower flange portion (12a) of the support frame is deformed by receiving inward stress in the width direction, and this reaction causes the plate surface of the support frame (12) having a vertically long cross-section to be twisted to the upper side. The collar part (12b) will be deformed outwards, the swing width to the left and right will increase, and the support frame (12) against the rail (16a) part will not slide smoothly, reducing the quality of the drawer container I will let you. Further, due to the deformation of the support frame (12), the container (15) placed on the support frame (12) is lifted, and the quality is further reduced.

  However, as described above, when the protrusions A (18) and B (19) are provided on the top and bottom of the rail member (16) and the flanges (12a) and (12b) are arranged so as to be close to them, the pulling operation When the door (10) swings left and right, the upper and lower flanges (12a) and the projection A (18) come into contact with each other, and even if an attempt is made to twist the support frame (12), The flange portion (12b) and the convex portion B (19) come into contact with each other, and a force is applied in a direction to prevent the support frame (12) from being deformed. As a result, the support frame (12) can maintain a right-angled parallel state with respect to the door (10), and it can be prevented from moving to the left and right to maintain a smooth pull-out action. (15) can be prevented from lifting.

  Therefore, when pulling out the container (15) together with the door (10), the support frame (12) slides in the rail (16a) and prevents deformation of the support frame (12) even if it swings left and right. The width of the upper and lower flanges (12a ′) and (12b ′) at the rear end on the indoor side is slightly expanded toward the convex portions A (18) and B (19), so that the back of the container (15) In the process of pulling out from the front part, the contact with the convex parts (18) and (19) is reduced to maintain a smooth pulling action, and when pulled out to the maximum position, the upper and lower collar parts (12a ') (12b ′) And the protrusions A (18) and B (19) of the rail member (16) are reduced in clearance so that they can be prevented from moving to the left and right, and act to maintain quality. Can do.

  Since the projections A (18) and B (19) of the rail member (16) are located in the vicinity of the front opening of the inner box (4), the rail member (16) is connected to the inner box (4 ), The rear part becomes an undercut part at the time of foam filling of the heat insulating material (3) between the inner and outer boxes, and it is necessary to make the foaming jig configuration complicated by using a movable type. In this embodiment, a reinforcing bead (4a) formed concavely in the front-rear direction is applied to the surface of the inner box (4) to be undercut, and this reinforcing structure fills the heat insulating material without complicating the jig configuration. The deformation due to the foaming pressure at the time is prevented.

  In addition, as shown in FIG. 4, square holes (20) are formed in the front and rear sides of the flange (12b) surface on the upper side of the support frame (12), and the square holes (20) As shown in FIG. 5, a convex piece (21) that is convexly formed is inserted into a position facing the opening edge (15a) of the container (15). As a result, the support frame (12) can maintain a right-angled parallel state along the side wall of the container (15), can obtain a smooth sliding action in the rail (16a), and has a door ( 10) The container (15) can be easily attached between the support frame (12).

At the same time, the container (15) itself can be positioned, and the holding state with respect to the support frame (12) is also restricted, so that the phenomenon of the container (15) being lifted when the left and right are shaken is prevented. be able to.
Further, as shown in FIG. 4, the side wall surface of the rail (16a) on which the support frame (12) slides is provided with a predetermined distance from the positions of the convex portions A (18) and B (19). A protruding surface (22) that slightly protrudes to the indoor side is formed at the rear of the support frame (22), which is a pulley at the rear end of the support frame (12) when the door (10) is pulled out to the maximum. The distance from A (13) is made smaller, specifically, the protrusion height is about 1 mm, and the front and rear sides thereof are made to have a gently inclined surface (23) and are continuous with the reference side wall surface.

  When the container (15) is pulled out to the maximum by this projecting surface (22), as shown in FIG. 9 which is a cross-sectional view along the line BB in FIG. 4, the rear projecting surface (22) and the pulley A ( The gap between the outer surface of 13) and the outer surface of the support frame is narrowed to a gap C ″ that is about the same as the gap C ′, and the front projections A (18) and B (19) and the upper and lower flanges (12a ′) ( 12b '), the gap between the support frame (12) and the rail (16a) is reduced at the front and back positions, and the effect of preventing rattling against left and right shake can be further increased. It is possible to obtain a smoother drawing operation by minimizing the interference between the frame (12) and the rail (16a).

  In addition, since a gently inclined surface (23) is provided before and after the projecting surface (22) and continues to the reference surface, there is no hindrance to the sliding action of the support frame (12). When pushing the container (15) with the door (10), even if the pushing direction is shifted and the door (10) or the support frame (12) swings to the left or right, the swing width is small, resulting in large resistance. Since it is pushed into the cabinet without any problems, it can be closed smoothly.

  The present invention is configured as described above, and by reducing the gap between the rail member (16) and the support frame (12), the support frame can be slid when pulling out the door (10) or in the maximum pulled out state. (12) Suppresses left and right swings and smoothes the sliding operation to improve the quality of the drawer door configuration. This is a rail member that is an injection-molded product without increasing the number of parts ( 16) and the support frame (12), which is a metal press-molded product, or the inner box (4), which is a vacuum-molded product, may be formed integrally with the concave and convex portions and the extended portion, which greatly increases costs. The quality can be improved.

  The present invention is not limited to the above-described embodiment, and can be modified without departing from the scope of the invention. For example, the sliding member attached to the rear end of the rail member (16) is a pulley A (13 ), It is sufficient if it has a low frictional resistance that slides in the rail, and in each of the above embodiments, the example of the drawer door container in the freezer compartment of the refrigerator has been described. Needless to say, it can also be adopted as a pull-out type door container of another storage room such as an ice storage box or a temperature switching room in a vegetable room or ice making room.

  INDUSTRIAL APPLICATION This invention can be utilized for the refrigerator provided with the drawer-type door and the storage container.

It is a longitudinal cross-sectional view of the refrigerator which shows one Embodiment of this invention. It is a schematic longitudinal cross-sectional view of the freezer compartment part in FIG. It is the front view which abbreviate | omitted the door of the container support part of FIG. It is a perspective view of the principal part of the state which pulled out the door of Drawing 2 to the maximum. It is sectional drawing from the front which shows the engagement relationship of the support frame and container in FIG. It is detail drawing of the principal part of FIG. FIG. 3 is a perspective view from above the front part in the pulled-out state of FIG. 2. It is sectional drawing which follows the AA line of FIG. It is sectional drawing which follows the BB line of FIG. It is a cross-sectional view of a refrigerator storage room showing a conventional state.

Explanation of symbols

1 Refrigerator body 6 Refrigerated room 8 Vegetable room 9 Freezer room 10 Freezer room door 12 Support frame
12a Lower side collar 12b Upper side collar 12c Stopper
13 Pulley A 15 Container 15a Upper edge
16 Rail member 16a Rail 17 Pulley B
18 Convex part A 19 Convex part B 20 Square hole
21 Convex piece 22 Protruding surface 23 Inclined surface

Claims (4)

  A drawer-type door that opens and closes the front opening of the storage room, a pair of left and right support frames that are fixed to the inner surface of the door and pulled out together with the open door, a container held between the support frames, and the support A rail member disposed on both sides of the storage chamber for slidably supporting the frame, and a convex portion to the indoor side is formed at a vertical position facing the support frame of the rail member in the vicinity of the front opening, and at least a door A refrigerator characterized in that a gap between the support frame and the rail member is substantially reduced when pulled out.   The upper and lower edges of the support frame are formed with flanges that are bent so as to oppose and approach the protrusions of the rail member, and the width of the upper and lower flanges at the rear end on the indoor side is expanded toward the protrusions. The refrigerator according to claim 1.   3. A through hole is formed in front and rear of the flange surface on the upper side of the support frame, and a convex piece formed at a position opposite to the opening edge of the container is inserted into the through hole. Refrigerator. On the side wall surface of the rail on which the support frame slides, the rear surface of the support frame in a state where a protruding surface that slightly protrudes to the indoor side is formed behind the position of a predetermined distance from the position of the front protrusion and pulled out to the maximum The refrigerator according to claim 1 or 2, wherein the interval between the ends is made small, and the front and rear sides thereof are made to be gently inclined surfaces and are continuous with the side wall surfaces.

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