JP2005345054A - Refrigerator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a refrigerator having a drawing free from rattling, and having high quality and high usability as it can be operated with small force even when load is applied thereto, 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 running rail 31c mounted between the fixed rail 31a and the moving rail 31b, and a plurality of bearings 31d as rotating supporting members. As the fixed rials 31a are fixed by mounting reinforcement members 33b on both side wall faces of an inner case 20 in a state that the fixed rail 31a, the moving rail 31b, the intermediate running rail 31c and the bearings 31d are assembled in advance, and a connecting member 35 is mounted to connect the left and right reinforcement members 33, the moving rails 31b can be smoothly moved by fixing the moving rails 31b to the refrigeration chamber door, and the operating force of 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 structure 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. 6 is a perspective view of a drawer-type door of a conventional refrigerator. FIG. 7 is a cross-sectional view of a main part of a conventional refrigerator drawer device. FIG. 8 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 which was 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 of the door rear 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 are inserted. 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.

  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-mentioned conventional problems, the refrigerator of the present invention fixes a rail member in a state in which a fixed rail and a moving rail are previously incorporated to the inner box wall surface, and then supports the container on the rail member, A reinforcing member for fixing the rail member to the heat insulating box and a connecting member for connecting the left and right reinforcing members are provided.

  As a result, the clearance between the fixed rail and the moving rail can be reduced, a high-quality drawer with less play can be configured, the fixing strength between the rail member and the heat insulating box can be increased, and the space between the left and right rail members can be increased. Dimensional accuracy and parallelism can be maintained as specified.

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

  Invention of Claim 1 is equipped with in the inside in the refrigerator provided with the heat insulation box which has a front opening part which consists of an inner box, an outer box, and the foam heat insulating material with which the said inner box and the outer box were filled. Rail members that allow the container to move back and forth are provided on the left and right sides, the rail members having a fixed rail and a moving rail, and the fixed rail and the moving rail are respectively supported by a rotation support member, and the fixed rail and the moving rail. In this state, the rail member is fixed to the heat insulation box, and then the container is supported by the rail member, and the connecting member for connecting the reinforcing member for fixing the rail member to the heat insulating box and the left and right reinforcing members. The clearance between the fixed rail and the moving rail can be reduced, a high-quality drawer with less play can be configured, and the rail member and the heat insulation box Fixing strength and is increased, and since the dimensional accuracy and the parallelism between the left and right rail members can hold as applicable, it is possible to provide a refrigerator reliable and convenient with high quality.

  According to a second aspect of the present invention, in the first aspect of the present invention, a partition wall that partitions the heat insulating box into an upper storage chamber and a lower storage chamber is provided, and the rail members are respectively provided in the upper storage chamber and the lower storage chamber. The fixed rail of each rail member is integrally fixed with a reinforcing member, and the operability of the rail member and the long-term reliability can be ensured when the rail member is provided in a plurality of storage chambers. .

  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 back of the container, and it can be looked up to the back of the container, so it is easy to prevent loss due to forgetting to use the container contents and to easily attach and detach the container to 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. Furthermore, the total length of the rail member can be shortened by providing the intermediate traveling rail.

  According to a fourth aspect of the present invention, in the second aspect of the present invention, the reinforcing member that fixes the fixed rail and the connecting member that connects the left and right reinforcing members are not exposed in the storage chamber, and the reinforcing member is stored. The reduction of the storage internal volume can be suppressed as compared with the case where it is arranged indoors.

  The invention according to claim 5 is the invention according to claim 2, wherein the reinforcing member for fixing the fixed rail and the connecting member for connecting the left and right reinforcing members are embedded in the foamed heat insulating material of the heat insulating box. In addition, by embedding in the foam heat insulating material, it is possible to prevent condensation and frost formation of the reinforcing member when using the refrigerator, and it is possible to improve the corrosion resistance of the reinforcing member because it does not come into contact with air.

  The invention according to claim 6 is the invention according to any one of claims 1 to 5, wherein the reinforcing member is made of a material having higher rigidity than the inner box, and the reinforcing member is made of a material having high rigidity. By this, a rail member can be arrange | positioned without being influenced by the behavior of an inner box, and ensuring of the operativity of a rail member and ensuring of assembly reliability can be aimed at.

  The invention according to claim 7 is the invention according to any one of claims 1 to 6, wherein the reinforcing member is provided with a hole, and the reinforcing member is provided with a hole so that the reinforcing member of the storage chamber is provided with a hole. Heat transfer can be suppressed, and condensation on the storage room side can be prevented and an increase in power consumption due to heat leakage can be suppressed. Moreover, since a foaming heat insulating material fills the holes, the strength of the refrigerator can also be improved.

  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 cross-sectional view of a refrigerator according to Embodiment 1 of the present invention, FIG. 2 is a cross-sectional view taken along line AA of FIG. 1, FIG. 3 is a schematic assembly view of the refrigerator of the same 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. , 26 form a refrigerator compartment 24, a switching chamber 25, a vegetable compartment 26, and a freezer compartment 27 from above.

  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 22a by the vegetable compartment door 29 and the 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. The fixed rail 31a is mounted on 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-assembled. The reinforcing member 33 is fixed through the hole 34. Then, the storage rail and the storage chamber door are connected by fixing the moving rail 31b to the storage chamber door.

  Here, the left and right reinforcing members 33 are formed by attaching the inner box 20 to the attachment portions 35 a provided on the left and right of the connecting member 35 disposed in the space between the upper partition plate 36 and the lower partition plate 37 that form the partition wall 26. It is connected and fixed with screws. Then, after incorporating the reinforcing member 33 and the connecting member 35, the foam heat insulating material 22 is filled and foamed between the inner box 20 and the outer box 21. At that time, the foamed heat insulating material 22 is also filled and foamed in the partition wall 26 provided with the connecting member 35.

  Further, by fixing the fixed rails 31a of the rail members 31 provided in the plurality of storage chambers adjacent to each other vertically with a single reinforcing member 33, the plurality of rail members 31 arranged vertically can be simultaneously reinforced.

  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. 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 31 fixed to the both side wall surfaces of the inner box 20 have a symmetrical shape, and exhibit better slidability 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.

  Since the reinforcing member 33 and the connecting member 35 are arranged on the inner box 20 on the side filled with the foam heat insulating material 22, the reinforcing member 33 and the connecting member 35 are configured not to be exposed in each storage chamber.

  Further, the fixed rails 31 a of the left and right rail members 31 in each storage chamber are fixed to a fixing portion 33 c of the reinforcing member 33.

  When the reinforcing member 33 is large, the same effect as when the reinforcing member 33 is integrated can be obtained even when the front and rear are divided into a plurality of parts.

  Further, it is desirable that the reinforcing member 33 and the connecting member 35 are made of a material having higher rigidity than the inner box 20.

  Furthermore, the bearing 31d may be a rotation support member, and for example, a roller or the like may be used.

  Further, the fixed rail 31a of the rail member 31 in the storage chamber is fixed to the fixed portion 33c of the reinforcing member 33, and at least the fixed portion 33c of the reinforcing member 33 is in contact with the surface of the inner box 20 on the side filled with the foam heat insulating material 22. Yes. Further, the left and right reinforcing members 33 are provided with holes 33d.

  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 31b of the rail member 31 and the intermediate traveling rail 31c provided on both sides of each storage room are smoothly slid toward the front side as the rotation support member 31d rotates. Move.

  Accordingly, 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, according to the present embodiment, the clearance between the fixed rail 31a and the movable rail 31b is fixed by fixing the rail member 31 in which the fixed rail 31a and the movable rail 31b are preliminarily assembled to both side walls of the inner box 20. It can be made small, 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 31 a of the rail member 31 by the connecting member 35, the rail member 31 can be held in the prescribed order in the front and rear, left and right, vertical dimensions or parallelism, and the reinforcing member 33 and the rail member 31. The fixing strength with the heat insulation box 19 is increased, and the clearance between the fixed rail 31a and the movable rail 31b is reduced by suppressing the dimensional change due to heat shrinkage or the like during cooling after the foam heat insulating material 22 is filled in the heat insulation box 19. Even if the specification is such that the rail member 31 set to be small is fixed to both side walls of the inner box 20 in advance, the dimensional accuracy between the pair of left and right rail members 31 can be kept high, so that the operability when the container 32 is pulled out can be improved. it can. In addition, it is possible to ensure operation reliability over a long period of time. Furthermore, since the reinforcing member 33 is a material having higher rigidity than the inner box 20, the strength of the refrigerator 18 is improved.

  In addition, since the fixed rail 31a of the rail member 31 provided in the plurality of storage chambers adjacent to each other in the vertical direction is integrally fixed by the single reinforcing member 33, the plurality of rail members 31 arranged in the vertical direction can be simultaneously reinforced. In addition, it is possible to ensure the operability of the rail member and ensure long-term reliability when the rail members are provided in the plurality of storage chambers, and the assembly workability is simplified and the cost can be reduced.

  In addition, by providing the intermediate traveling rail 31c, it is possible to increase the pull-out allowance of the moving rail 31b of the rail member 31, 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 reinforcing member 33 and the connecting member 35 are not exposed in each storage chamber, it is possible to suppress a reduction in the storage volume as compared with the case where the reinforcing member 33 and the connecting member 35 are arranged in each storage chamber.

  Further, since the reinforcing member 33 and the connecting member 35 for fixing the fixed rail 31a are 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 reinforcing member 33 when the refrigerator 18 is used. In addition, since the reinforcing member 33 does not come into contact with air, the corrosion resistance of the reinforcing member 33 and the connecting member 35 can be improved.

  Further, by providing a plurality of holes 33d provided in the reinforcing member 33 to such an extent that the strength can be maintained, the amount of heat transfer can be effectively reduced. Furthermore, since the foam heat insulating material 22 fills the holes 33d, the strength of the refrigerator 18 is improved.

  Further, since the reinforcing member 33 and the connecting member 35 are made of a material having higher rigidity than the inner box 20, the rail member can be arranged without being affected by the behavior of the inner box, ensuring the operability of the rail member and ensuring the assembly reliability. It can be secured.

  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 26, the ice making room (not shown) attached to the side of the switching room 25, etc.

  Further, the connecting member 35 may be provided with a plurality of holes. In this case, the fluidity of the foam heat insulating material 22 that fills and foams the partition wall 26 is improved, a predetermined heat insulating performance can be obtained, and the strength of the heat insulating box is also increased.

  As described above, the refrigerator according to the present invention is small in play, can open and close smoothly even when a load is applied to the container, and has a high-quality and easy-to-use drawer storage. It can also be applied to applications such as a cooling storage drawer.

Cross-sectional view of the refrigerator in the first 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 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 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 32 Container 33 Reinforcing member 33d Hole 35 Connecting 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. Rail members are provided on the left and right sides, the rail members have fixed rails and moving rails, and the fixed rails and moving rails are supported by rotation support members, respectively. It is fixed to the heat insulating box, and then includes a reinforcing member that supports the container on the rail member and fixes the rail member to the heat insulating box and a connecting member that connects the left and right reinforcing members. refrigerator.   A partition wall for partitioning the heat insulation box into an upper storage chamber and a lower storage chamber is provided, and the rail member is provided in each of the upper storage chamber and the lower storage chamber, and the fixed rails of each rail member are integrally fixed with a reinforcing member. The refrigerator according to claim 1.   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 supported by the rotation support member. The refrigerator according to claim 1 or 2, wherein the refrigerator is slidable back and forth.   The refrigerator according to claim 2, wherein the reinforcing member that fixes the fixed rail and the connecting member that connects the left and right reinforcing members are not exposed in the storage chamber.   The refrigerator according to claim 2, wherein a reinforcing member for fixing the fixed rail and a connecting member for connecting the left and right reinforcing members are embedded in the foamed heat insulating material of the heat insulating box.   The refrigerator according to any one of claims 1 to 5, wherein the reinforcing member and the connecting member are made of a material having higher rigidity than the inner box.   The refrigerator according to claim 1, wherein a hole is provided in the reinforcing member.

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