JP4367186B2 - refrigerator - Google Patents

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.

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

In the above configuration, when the door 1 is opened and closed, the frame 2 having one end fixed to the door 1, the connecting frame 16 connected to the frame 2, the case 15 and the movable roller 3 placed on these frames 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 degree 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-described conventional problems, the refrigerator of the present invention has a rail member in which a fixed rail and a moving rail are incorporated in advance, fixed to a fixed portion of the frame, and then the container is supported by the rail member. It is.

  As a result, the clearance between the fixed rail and the movable rail can be reduced, and a high-quality drawer with less play 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.

  Further, since the frame body for regulating the position of the rail member is provided, the operability of the rail member can be ensured and the assembly reliability can be improved.

  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 is provided in the interior of the storage room, a heat insulating 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. A container, a rail member provided in the storage chamber and capable of moving the container back and forth, and a position restricting means for restricting a fixing position of the rail member, and the rail member is provided on both sides of the container. 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, and the fixed rail and the moving rail are assembled in advance in a state in which the fixed rail and the moving rail are assembled in advance. fixed to, then, while supporting the container to said rail member, said position regulating means is a frame body forming an inner wall of the storage compartment to have a separate front opening and the inner box, the frame both sides of the body The fixed rail of the rail member is fixed to the fixed portion provided, and the clearance between the fixed rail and the moving rail can be reduced by applying a rail member in which the fixed rail and the moving rail are incorporated in advance. It is possible to configure a high-quality drawer with little play. In addition, by supporting 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, so the operation force of the drawer can be reduced and the usability is improved. Can be measured.

  Further, since the frame body for regulating the position of the rail member is provided, the operability of the rail member can be ensured and the assembly reliability can be improved.

  According to a second aspect of the present invention, in the first aspect of the present invention, an intermediate traveling rail is provided between the fixed rail and the moving rail of the rail member, and the relationship between the intermediate traveling rail, the fixed rail, and the moving rail is provided. The support rail is supported by a rotation support member, and the movable support rail can be slid back and forth with the rotation support member. It can be pulled out to the back of the container, and it can be looked up to the back of the container, preventing loss due to forgetting to use the container contents, and it is easy to attach and detach the container to the rail member, improving usability Can be achieved. 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 third aspect of the present invention, in the first or second aspect of the present invention, the frame body includes a positioning pin for the fixed rail of the rail member, and the fixed rail has a hole or a recess corresponding to the position of the positioning pin. After the positioning pin is inserted into the hole or recess of the fixed rail and aligned, the fixed rail is fixed to the frame body. The positioning pin provided on the frame body and the fixed rail are provided. By fixing the fixed rail to the frame after alignment using the holes or recesses, the reliability of the assembling work can be improved and simplified.

  The invention according to claim 4 is the invention according to any one of claims 1 to 3, wherein the frame body and the rail member are applied to a plurality of storage chambers, and the rail member and the assembly are easy to use. By applying the frame body capable of improving the reliability to a plurality of storage rooms, it is possible to further improve the convenience of the refrigerator and the assembly reliability.

The invention according to claim 5 is the invention according to any one of claims 1 to 4, wherein the frame has a linear expansion coefficient of 1.0 to 3.0 × 10 ⁻⁶ cm / cm · ° C. By forming the frame body from a material having a low linear expansion coefficient, it is possible to reduce the influence on the operability caused by the frame body contracting during the cooling operation of the refrigerator, so that the operation reliability of the rail member is improved. Can do.

  The invention according to claim 6 is the invention according to any one of claims 1 to 5, wherein the frame has a thermal conductivity of 0.1 to 0.2 W / m · K, By forming the body from a material having low thermal conductivity, it is possible to suppress an increase in power consumption due to an increase in the temperature of the frame body and an increase in the temperature in the storage chamber, particularly when the storage chamber is opened and closed.

  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 27, and a freezing compartment 28 from above.

  Moreover, the both sides | surfaces of the partition wall 26 have the opening part 26a, and the partition wall 26 is filled with the foam heat insulating material 22 similarly to 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 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 a rail member 32 fixed to the frame 31, it can be drawn and slid in the front-rear direction.

  The frame body 31 is a means for restricting the position of the rail member 32. The frame body front opening 31a that allows the rail member 32 to slide in the front-rear direction, and a fixing that fixes the rail member 32 provided on both sides of the frame body 31. And a positioning pin 31c that is provided on both sides of the frame body 31 and aligns the frame body 31 and the rail member 32 before the rail member 32 is fixed to the fixing section 31b. Before the alignment, the inner box 20 and the partition wall 26 are further provided on the storage chamber side and fixed to the inner box 20.

  The rail member 32 includes a fixed rail 32a, a movable rail 32b, an intermediate traveling rail 32c provided between the fixed rail 32a and the movable rail 32b, and an engagement between the intermediate traveling rail 32c, the fixed rail 32a, and the movable rail 32b. And a plurality of bearings 32d, which are rotation support members that support the frame, and holes 32e provided at positions corresponding to the positioning pins 31c of the frame 31 of the fixed rail 32a. The fixed rail 32a, the moving rail 32b, and the intermediate traveling rail 32c After the positioning pins 31c of the frame 31 are inserted into the holes 32e and aligned with the bearings 32d and the bearings 32d in advance, the fixed rails 32a are fixed to the fixed portions 31b of the frame 31, and the movable rails 32b are stored in the respective storages. Each storage room and the storage room door are connected by being fixed to the room door.

  In addition, the rail member 32 which has the fixed rail 32a, the moving rail 32b, and the intermediate | middle running rail 32c arrange | positioned through the bearing 32d between the fixed rail 32a and the moving rail 32b is integrated beforehand, The clearance between the rails can be set to a minimum.

  Furthermore, the left and right rail members 32 fixed to the fixing portion 31b of the frame 31 have a symmetrical shape, and exhibit better sliding performance by providing both left and right.

  The container 33 of each storage chamber is supported by the moving rail 32b of the rail member 32 after the rail member 32 is fixed to the fixed portion 31b of the frame 31, and is moved together with the moving rail 32b in synchronization with pulling out each storage chamber door in the front-rear direction. The container 33 is detachable in the upward direction when it moves back and forth and when each storage chamber door is at least fully opened.

The frame body 31 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.

  Further, the bearing 32d 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 32b of the rail member 32 and the intermediate traveling rail 32c provided on both sides of each storage room are smoothly slid toward the front side as the rotation support member 32d rotates. Move.

  Along with this, the container 33 supported by the rail member 32 is also pulled forward, and the object to be cooled stored in the container 33 can be taken out and a new object to be cooled can be stored.

  As described above, in the present embodiment, the clearance between the fixed rail 32a and the movable rail 32b is obtained by fixing the rail member 32 in which the fixed rail 32a and the movable rail 32b are preliminarily assembled to the fixed portion 31b of the frame 31. Can be made small, and a high-quality drawer with little backlash can be configured. Further, since the variation in mounting can be reduced by reducing the clearance, it is possible to suppress the appearance defect such as the inclination due to the door mounting failure and the non-uniform spacing with other doors. These effects are more effective as the allowance for the rail member 32 is larger. Further, by supporting the fixed rail 32a and the moving rail 32b with a bearing 32d which is a rotation support member, the moving rail 32b can move smoothly even when a load is applied to the container 33, so that the operation force of the drawer is reduced. Can improve usability.

  Further, by restricting the mounting position of the fixed rail 32 a of the rail member 32 by the frame body 31, the width dimension or parallelism of the pair of left and right rail members 32 can be maintained as prescribed, and the frame body 31 allows the heat insulating box body 19 to be maintained. The frame 31 is fixed in a state in which the rail member 32 in which the clearance between the fixed rail 32a and the movable rail 32b is set to be small is incorporated in advance by suppressing dimensional changes due to thermal shrinkage or the like during cooling after filling the foam heat insulating material 22. Since the dimensional accuracy between the pair of left and right rail members 32 can be kept high even as a specification to be fixed to the portion 31b, the operability when the container 33 is pulled out can be enhanced by the frame 31 that is the position restricting means. In addition, it is possible to ensure operation reliability over a long period of time.

  In the present embodiment, the frame body 31 is provided on the inner side of the storage chamber further than the inner box 20 and the partition wall 26 before being aligned with the rail member 32, and is fixed to the inner box 20. What fixed the rail member 32 to the body 31 may be inserted into the inner box 20 and fixed to the inner box 20.

  In this case, the assembly workability when the rail member 32 is fixed to the frame 31 can be improved.

  Further, by providing the intermediate travel rail 32c, the pulling allowance of the moving rail 32b of the rail member 32 can be increased, so that it can be pulled out to the inner part of the container 33 and can be looked over to the inner part of the container 33, Loss due to forgetting to use the object to be cooled in the container 33 can be prevented, and the container 33 can be easily attached to and detached from the rail member 32, so that the usability can be improved.

  In particular, when it is desired to pull out the container 33 in each storage room with the depth increased to the near side, the intermediate travel rail 32c is provided, which is effective for the strength and operability of the rail member 32 when being pulled out.

  Further, by using the positioning pins 31c provided in the frame body 31 and the holes 32e provided in the fixed rail 32a, the fixed rail 32a after alignment is fixed to the frame body 31 to improve and simplify the assembly work. Can be achieved.

  In the present embodiment, the positioning pin 31c and the hole 32e are used for alignment. However, for example, if the frame 31 is provided with a rib and the fixed rail 32a can be aligned accordingly, the same effect can be obtained. Can do.

  Further, the frame body 31 and the rail member 32 are applied to a plurality of storage chambers, and the user-friendly rail member 32 and the frame body 31 capable of improving the assembly reliability are applied to the plurality of storage chambers. As a result, it is possible to further improve the usability and assembly reliability of the refrigerator 18.

Further, by forming the frame body 31 with a material having a low linear expansion coefficient of 1.0 to 3.0 × 10 ⁻⁶ cm / cm · ° C., the frame body 31 contracts during operation of the refrigerator 18. Since the influence on the operativity by doing can be reduced, the operation reliability of the rail member 32 can be improved.

  Moreover, since the thermal conductivity of the frame 31 is 0.1 to 0.2 W / m · K, the frame 31 is formed of a material having a low thermal conductivity by forming the frame 31 with a material having a low thermal conductivity. Thus, an increase in power consumption due to an increase in the temperature of the frame 31 and an increase in the temperature of the storage chamber, particularly when the storage chamber is opened and closed, can be suppressed.

  In this embodiment, the frame 31, the rail member 32, and the container 33 are shared by the vegetables 27 and the freezer compartment 28. However, depending on the storage form used, etc. When used, cost can be further reduced and reliability can be improved.

The frame 31 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, as the material of the frame 31, when the mounting position accuracy of the rail member 32 is required during the operation of the refrigerator 18, metals having a small linear expansion coefficient are used, and the temperature of the frame 31 is changed when the storage chamber is opened and closed. When suppression of increase in power consumption due to rising and temperature in the storage chamber is required, it is preferable to use resins having low thermal conductivity.

  In addition, in this Embodiment, although the thing using the rail member 32 was used for the vegetable compartment 27 and the freezer compartment 28, it can apply suitably to the storage room provided with the 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.

  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 27 Vegetable room 28 Freezing room 31 Frame 31a Frame front opening 31b Fixed part 31c Positioning pin 32 Rail member 32a Fixed rail 32b Moving rail 32c Intermediate running rail 32d Bearing 32e Hole 33 Container

Claims (6)

A heat insulating 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, a container provided inside the storage chamber, and a storage chamber A rail member that allows the container to move back and forth, and a position restricting means that restricts a fixed position of the rail member. The rail member is provided on both sides of the container, and the rail member moves with the fixed rail. The fixed rail and the moving rail are each supported by a rotation support member, and the fixed rail and the moving rail are fixed in advance in a state in which the fixed rail and the moving rail are assembled in advance. while supporting the rail member, said position regulating means is a frame body forming an inner wall of the storage compartment to have a separate front opening and the inner box, fixed portion provided on both sides of the frame To the above Refrigerator, characterized in that to fix the fixed 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 supported by the rotation support member. The refrigerator according to claim 1 , wherein the refrigerator is slidable back and forth. The frame body includes a positioning pin for the fixed rail of the rail member. The fixed rail is provided with a hole or a recess corresponding to the position of the positioning pin, and the positioning pin is inserted into the hole or the recess of the fixed rail for alignment. after performing the refrigerator according to claim 1 or 2, characterized in that fixing the fixed rail to the frame.   The refrigerator according to any one of claims 1 to 3, wherein the frame body and the rail member are applied to a plurality of storage rooms. 5. The refrigerator according to claim 1, wherein the frame has a linear expansion coefficient of 1.0 to 3.0 × 10 ⁻⁶ cm / cm · ° C. 5.   The refrigerator according to any one of claims 1 to 5, wherein the frame has a thermal conductivity of 0.1 to 0.2 W / m · K.

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