JP2005345055A - Refrigerator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a refrigerator having a drawer 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. 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 the moving rails are respectively fixed to a refrigeration chamber door, thus the moving rails 31b can be smoothly moved, the operability of the drawer can be improved, and the refrigerator of high quality, high reliability and high usability can be provided. <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 is provided.

  As a result, the clearance between the fixed rail and the moving rail can be reduced, a high-quality drawer with little backlash can be configured, and the fixing strength between the rail member and the heat insulating box can be increased.

  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. The rail member is fixed to the heat insulation box in a state of being preliminarily incorporated, and thereafter, the container is supported by the rail member and includes a reinforcing member for fixing the rail member to the heat insulation box. The clearance with the moving rail can be reduced, a high-quality drawer with little backlash can be configured, and the fixing strength between the rail member and the heat insulation box can be increased. It is possible to provide a good refrigerator reliable and easy to use in place.

  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 2, wherein the reinforcing member for connecting the upper and lower fixed rails is not exposed in the storage chamber, and the reinforcing member is arranged in the storage chamber. Compared to the above, it is possible to suppress the reduction of the storage internal volume.

  The invention according to claim 4 is the invention according to claim 2, wherein the reinforcing member for connecting the upper and lower fixed rails is embedded in the foam heat insulating material of the heat insulating box, and is embedded in the foam heat insulating material. Thus, it is possible to prevent dew condensation and frost formation on the reinforcing member during use of the refrigerator, and further, the corrosion resistance of the reinforcing member can be improved because it does not come into contact with air.

  The invention according to claim 5 is the invention according to claim 2, wherein the upper storage chamber and the lower storage chamber have different temperature zones, and the reinforcing member is provided with holes, and the reinforcing member is provided with holes. When the temperature zones of the plurality of storage rooms are different, heat transfer from the reinforcing 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. Moreover, since a foaming heat insulating material fills the hole, the strength of the entire refrigerator can be improved.

  The invention according to claim 6 is the invention according to any one of claims 2 to 5, wherein the fixed rails of the upper and lower rail members are connected by a plurality of reinforcing members, and the rail members are connected to a large refrigerator. When used, the reinforcing member can be reduced in size by dividing the reinforcing member into a plurality of parts, so that the cost can be reduced.

The invention according to claim 7 is the invention according to any one of claims 1 to 6, wherein the reinforcing member has a linear expansion coefficient of 1.0 to 3.0 × 10 ⁻⁶ cm / cm · ° C. By forming the reinforcing member with a material having a small linear expansion coefficient, it is possible to reduce the influence on the operability due to the shrinking of the reinforcing member during the cooling operation of the refrigerator, thereby improving the operation reliability of the rail member Can do.

  The invention according to claim 8 is the invention according to any one of claims 1 to 7, wherein the reinforcing member has a thermal conductivity of 0.1 to 0.2 W / m · K, and is reinforced. By forming the member with a material with low thermal conductivity, heat transfer from the reinforcing member is suppressed, especially when the temperature zones of multiple storage chambers are different, preventing condensation on the storage chamber side where the temperature zone is high, and heat leakage The increase in power consumption due to can be suppressed.

  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 moving rail 31b, and a plurality of bearings 31d that are rotation support members that support engagement between the fixed rail 31a and the moving rail 31b. The fixed rail 31a, the moving rail 31b, and the bearing The fixed rail 31a is fixed to the both side wall surfaces of the inner box 20 in a state in which 31d is incorporated in advance, and the respective storage chambers and the storage chamber doors are connected by fixing the movable rails 31b to the respective storage chamber doors. . Here, although not shown, the rail member 31 may be fixed to the partition wall 26 that partitions the storage chamber.

  The rail member 31 in which the bearing 31d is disposed between the fixed rail 31a and the moving rail 31b, and the fixed rail 31a and the moving rail 31b is previously incorporated, and the clearance between the rails is set to a minimum. can do.

  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.

  Further, the fixed rail 31a of the rail member 31 is fixed by the reinforcing member 33b via the inner box 20, respectively, to increase the mounting strength of the fixed rail 31a.

  Moreover, the fixed rail 31a of the rail member 31 with which each store room is equipped is integrally fixed with the reinforcement member 33b of 1 sheet | seat, and the several rail member 31 arrange | positioned up and down can be reinforced simultaneously.

  Since the reinforcing member 33b is disposed on the side of the inner box 20 that is filled with the foam heat insulating material 22, the reinforcing member 33b has a structure that is not exposed to each storage chamber.

  In addition, both ends of the reinforcing member 33b reach the vicinity of the vertical center of the vegetable compartment 27 and the freezing compartment 28, and the fixed rail 31a of the rail member 31 in each storage chamber is fixed to the fixing portion 33c of the reinforcing member 33b. At least the fixing portion 33c of the reinforcing member 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 reinforcing members 33b are provided with holes 33d.

  In addition, when the reinforcing member 33b becomes large, the same effect as in the case where the reinforcing member 33b is integrated can be obtained by dividing the front and rear parts into a plurality of parts, providing the fixing portion 33c, and providing the hole 33d as necessary.

The reinforcing member 33b 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 0.1-0.2W / m * K.

  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 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 enhancing the attachment strength of the fixed rail 31a of the rail member 31 by the reinforcing member 33b, the operability of the drawer can be stably performed, and the operability can be maintained for a long time.

  Moreover, since the fixed rail 31a of the rail member 31 with which each store room is equipped is integrally fixed by the one reinforcing member 33b, since the several rail member 31 arrange | positioned up and down can be reinforced simultaneously, several store rooms When the rail member is provided with the rail member, the operability of the rail member and long-term reliability can be ensured, and the assembling workability can be simplified and the cost can be reduced.

  In addition, you may provide the position control means which controls the position of the right and left reinforcement member 33b so that the front and rear, the left and right, the vertical dimension, or the parallelism of the rail member 31 can be maintained as specified.

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

  Moreover, since the reinforcing member 33b for connecting the upper and lower 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 reinforcing member 33b when the refrigerator 18 is used. Furthermore, since the reinforcing member 33b does not come into contact with air, the corrosion resistance of the reinforcing member 33b can be improved.

  Further, since the hole 33d is provided in the reinforcing member 33b, heat transfer from the reinforcing member 33b is suppressed when the temperature zones of the plurality of storage chambers are different, thereby preventing condensation on the side of the storage chamber having a high temperature zone and heat leakage. Increase in power consumption can be suppressed.

  In addition, the heat transfer amount can be effectively reduced by providing a plurality of holes 33d provided in the reinforcing member 33b so as to maintain the strength. Furthermore, since the foam heat insulating material 22 fills the holes 33d, the strength of the refrigerator 18 is improved.

  When the fixed rail 31a of the rail member 31 is connected in the front-rear direction by a plurality of reinforcing members 33b, particularly when the rail member 31 is used in a large refrigerator, the reinforcing member 33b is divided into a plurality of reinforcing members. Since the size of 33b can be reduced, the cost can be reduced.

Further, by forming the reinforcing member 33b with a material having a low linear expansion coefficient of 1.0 to 3.0 × 10 ⁻⁶ cm / cm · ° C., the connecting member 33 contracts during operation of the refrigerator 18. Since the influence on the operability by doing can be reduced, the operation reliability of the rail member 31 can be improved.

  In addition, since the thermal conductivity of the reinforcing member 33b is 0.1 to 0.2 W / m · K, the reinforcing member is formed of a material having a low thermal conductivity, particularly when the temperature zones of the plurality of storage chambers are different. The heat transfer from 33b can be suppressed, so that 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 the present embodiment, the rail member 31 and the container 32 are shared by the vegetables 27 and the freezer compartment 28. However, it is more costly to use materials that are made of different materials for each storage compartment depending on the storage configuration used. Reduction and improvement in reliability can be achieved.

The reinforcing member 33b 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. Specifically, regarding the 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., The thermal conductivity 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 reinforcing member 33b, 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 the increase in power consumption due to heat leaks, it is preferable to use resins with 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 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.

  Moreover, in this Embodiment, although the reinforcement member 33b demonstrated what fixed each rail member 31 of the vegetable compartment 27 and the freezer compartment 28, reinforcement independent for each of the vegetable compartment 27 and the freezer compartment 28 was carried out. A member may be used. 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.

  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 31d Bearing 32 Container 33b Reinforcement member 33d Hole

Claims (8)

  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. A refrigerator comprising a reinforcing member for fixing the rail member to the heat insulating box while fixing the container to the heat insulating box and then supporting the container to the rail member.   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.   The refrigerator according to claim 2, wherein the reinforcing member that connects the upper and lower fixed rails is not exposed in the storage chamber.   The refrigerator according to claim 2, wherein a reinforcing member that connects the upper and lower fixed rails is embedded in a foam heat insulating material of the heat insulating box.   The refrigerator according to claim 2, wherein the upper storage chamber and the lower storage chamber have different temperature zones, and a hole is provided in the reinforcing member.   6. The refrigerator according to claim 2, wherein the fixed rails of the upper and lower rail members are connected by a plurality of reinforcing members. The refrigerator according to claim 1, wherein the reinforcing member has a linear expansion coefficient of 1.0 to 3.0 × 10 ⁻⁶ cm / cm · ° C.   The refrigerator according to any one of claims 1 to 7, wherein the reinforcing member has a thermal conductivity of 0.1 to 0.2 W / m · K.

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