JP2006010165A - Refrigerator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a refrigerator having a drawer, for reducing looseness, having a high grade, reducing operation force even if a load is applied, and superior in easiness-to-use, in the refrigerator having a drawer device. <P>SOLUTION: This refrigerator is formed by respectively applying a rail member 31 of a state of incorporating a fixed rail 31a, a moving rail 31b and a bearing 31d in advance, to upper-lower storage rooms of a different temperature zone; and has a plurality of reinforcing members 33b for reinforcing the rail member 31 on the same side surface of an inner box 20; and is constituted by arranging a reinforcing connecting member 33e for connecting the reinforcing members 33b of the same side surface. Thus, a high-grade drawer without looseness can be constituted; installation strength of the rail member can be enhanced; easiness-to-use is improved with a high grade; and reliability can be enhanced. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a refrigerator provided with a drawer device, and more particularly to a configuration for attaching a drawer rail.

  In recent years, as the size of refrigerators has increased, the amount of storage tends to increase, and in order to increase the amount of storage and improve usability, those equipped with a drawer device have become mainstream (for example, see Patent Document 1). ).

  Hereinafter, a refrigerator provided with the above-described conventional drawer device will be described with reference to the drawings.

  FIG. 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 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 into 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 fixes a rail member in a state in which a fixed rail and a moving rail are previously assembled to a reinforcing member. The reinforcing member that reinforces the rail member is the inner box. There are provided a plurality of reinforcing connection members on the same side, and connecting reinforcing members on the same side.

  As a result, the clearance between the fixed rail and the movable rail can be reduced, a high-quality drawer with little backlash can be configured, and the mounting strength of the rail member can be increased.

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

  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 insulating box in a state in which the rail is preliminarily incorporated, and thereafter, a plurality of reinforcing members for supporting the container on the rail member and reinforcing the rail member are provided on the same side surface of the inner box, and the reinforcing member on the same side surface The rail member in the state where the fixed rail and the movable rail are assembled in advance is fixed to the heat insulating box body to fix the fixed rail and the movable rail. It is possible to reduce the clearance, it is possible to construct a high-quality drawer with less backlash. In addition, it is possible to secure the operability of the rail member and ensure the assembly reliability by securely fixing the reinforcing member and increasing the mounting strength of the rail member.

  The invention according to claim 2 is the invention according to claim 1, wherein the heat insulating box is partitioned into an upper storage chamber and a lower storage chamber, and rail members are provided in the upper storage chamber and the lower storage chamber, respectively. The fixed rails of the members are integrally fixed with a plurality of reinforcing members, and the operability of the rail members and the assembly reliability can be ensured when the rail members are provided in the 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 and the reinforcing connecting member are not exposed in the storage chamber. Compared with the case where it arrange | positions, reduction of the storage internal volume can be suppressed.

  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 and the reinforcing connecting member are embedded in the foam heat insulating material of the heat insulating box. By embedding in the inside, it is possible to prevent condensation and frost formation between the reinforcing member and the reinforcing connecting member during use of the refrigerator, and further to improve the corrosion resistance of the reinforcing member and the reinforcing connecting member because it does not come into contact with air. it can.

  The invention according to claim 5 has a plurality of reinforcing connecting members for connecting a plurality of reinforcing members on the same side surface in the invention according to any one of claims 1 to 4, and fixing the reinforcing members. Thus, it is possible to further ensure the operability of the rail member and to secure the assembling reliability by increasing the accuracy of the position regulation of the rail member.

The invention according to claim 6 is the invention according to any one of claims 1 to 5, wherein the reinforcing connecting member has a linear expansion coefficient of 1.0 to 3.0 × 10 ⁻⁶ cm / cm · ° C. By forming the reinforcing connecting member with a material having a small linear expansion coefficient, the influence on the operability due to the shrinking of the reinforcing connecting member during the cooling operation of the refrigerator can be reduced, so that the operation reliability of the rail member can be reduced. Can be improved.

  The invention according to claim 7 is the invention according to any one of claims 1 to 6, wherein the reinforcing connecting member has a thermal conductivity of 0.1 to 0.2 W / m · K, By forming the reinforced connecting member with a material with low thermal conductivity, heat transfer from the reinforced connecting member is suppressed, especially when the temperature zones of multiple storage rooms are different, and condensation on the side of the storage room with a high temperature zone is prevented. And increase in power consumption due to heat leakage 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 compartment 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. .

  The rail member 31 in which the bearing 31d is disposed between the fixed rail 31a and the movable rail 31b, and the fixed rail 31a and the movable 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 positions of the fixed rails 31a of the pair of left and right rail members 31 are restricted through the inner box 20 by the reinforcing members 33b, which are a plurality of position restricting means arranged in the front and rear on the same side surface. And the reinforcement connection member 33e which connects the some reinforcement member 33b distribute | arranged back and forth is provided.

  The reinforcing member 33b is formed integrally with the same side surface of the vegetable compartment 26 and the freezing compartment 27 that are set in different temperature zones above and below via the partition wall 26, and a plurality of reinforcing members 33b arranged in the front and rear. May be connected and fixed by a plurality of reinforcing connecting members 33e.

  Further, a plurality of the reinforcing connecting members 33e may be provided, and the arrangement thereof may be parallel to each other or crossed, so-called a wrinkled state.

  Since the reinforcing member 33b is disposed on the inner box 20 on the side filled with the foam heat insulating material 22, the reinforcing member 33b and the reinforcing connecting member 33e are 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 and the reinforcing connecting member 33e are in contact with the surface of the inner box 20 on the side filled with the foam heat insulating material 22.

The reinforcing connecting member 33e 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 0.1-0.2 W / 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 a state 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 play can be configured. Further, by supporting the fixed rail 31a and the moving rail 31b with a bearing 31d which is a rotation support member, even when a load is applied to the container 32, the moving rail 31b can move smoothly, thereby reducing the operation force of the drawer. Can improve usability.

  Further, by restricting the mounting position of the fixed rail 31a of the rail member 31 by the reinforcing member 33b, the front and rear, left and right, vertical dimensions or parallelism of the rail member 31 can be maintained as prescribed, and the heat insulating box body 19 by the reinforcing member 33b. Of the inner box 20 with the rail member 31 in which the clearance between the fixed rail 31a and the movable rail 31b is set to be small in advance, by suppressing the dimensional change due to thermal shrinkage or the like during cooling after the foam insulation material 22 is filled. Since the dimensional accuracy between the pair of left and right rail members 31 can be kept high even when the specification is fixed to the wall surfaces on both sides, the operability when the container 32 is pulled out can be enhanced by the reinforcing member 33b which is a position restricting means. In addition, it is possible to ensure operation reliability over a long period of time.

  Further, the reinforcing member 33b is formed integrally with the same side surface of the vegetable compartment 26 and the freezing compartment 27 that are set in different temperature zones in the vertical direction via the partition wall 26, and a plurality of reinforcing members 33b arranged in the front and rear. Are connected and fixed by the reinforcing connecting member 33e, the position of the rail members 31 before and after, between the storage chambers can be regulated, and operability, quality, and assembly reliability can be improved. Furthermore, by integrating, it is possible to reduce the cost by reducing the number of parts. Further, by providing the reinforcing connecting member 33e for connecting the plurality of reinforcing members 33b arranged in the front and rear, the plurality of reinforcing members 33b arranged in the front and rear are connected to each other, and the fixing of the reinforcing member 33b becomes stable, and the rail The position regulation of the member 31 is further ensured. In addition, reliability is increased by providing a plurality of reinforcing connecting members 33e.

  Further, since the reinforcing member 33b and the reinforcing connecting member 33e are not exposed in each storage chamber, a reduction in the storage volume is suppressed as compared with the case where the reinforcing member 33b and the reinforcing connecting member 33e are arranged in each storage chamber. be able to.

  Further, since the reinforcing member 33b for connecting the upper and lower fixed rails 31a and the reinforcing connecting member 33e for connecting the reinforcing member 33b are embedded in the foam heat insulating material 22 of the heat insulating box 19, the reinforcing member 33b and the reinforcing member 33b In addition, it is possible to prevent condensation and frost formation on the reinforcing connecting member 33e, and further, since the reinforcing member 33b and the reinforcing connecting member 33e do not come into contact with air, the corrosion resistance of the reinforcing member 33b and the reinforcing connecting member 33e is improved. be able to.

  Further, since the plurality of reinforcing members 33b arranged at the front and rear are connected and fixed by the plurality of reinforcing connecting members 33e, the reinforcing members can be more securely fixed to improve the accuracy of the position regulation of the rail members, thereby further improving the rail members. As a result, it is possible to ensure the operability and the assembly reliability.

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

  In addition, since the thermal conductivity of the reinforcing connecting member 33e is 0.1 to 0.2 W / m · K, it is reinforced by using a material having a low thermal conductivity, particularly when the temperature zones of the plurality of storage chambers are different. Heat transfer from the connecting member 33e can be suppressed, and condensation on the storage room side 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 connecting member 33e is 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. In general, the linear expansion coefficient is 1.0 to 3.0 × 10 ⁻⁶ cm / cm · ° C. for metals and 1.0 to 15.0 × 10 ⁻⁵ cm / cm · ° C. for resins. 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.

  Accordingly, when the mounting position accuracy of the rail member 31 is required during operation of the refrigerator 18, the reinforcing connecting member 33e is made of metal having a low linear expansion coefficient, and the dew condensation on the storage room side having a high temperature zone is used. When prevention and suppression of increase in power consumption due to heat leakage are required, it is preferable to use resins having low thermal conductivity. Moreover, you may integrate and use both with respect to several storage chambers.

  In addition, in this Embodiment, although the thing using the rail member 31 for the vegetable compartment 27 and the freezer compartment 28 was demonstrated, 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 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 33e Reinforcement connection 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. A plurality of reinforcing members are provided on the same side surface of the inner box, and the reinforcing connecting members are connected to the reinforcing members on the same side surface. A refrigerator characterized by that.   The heat insulation box is divided into an upper storage chamber and a lower storage chamber, each of which has a rail member in the upper storage chamber and the lower storage chamber, and the fixed rail of each rail member is fixed integrally with a plurality of reinforcing members, The refrigerator according to claim 1.   The refrigerator according to claim 2, wherein the reinforcing member for connecting the upper and lower fixed rails and the reinforcing connecting member are not exposed in the storage chamber.   The refrigerator according to claim 2, wherein a reinforcing member for connecting the upper and lower fixed rails and a reinforcing connecting member are embedded in a foam heat insulating material of a heat insulating box.   5. The refrigerator according to claim 1, comprising a plurality of reinforcing connecting members that connect a plurality of reinforcing members on the same side surface. 6. The refrigerator according to claim 1, wherein the reinforcing connecting member has a linear expansion coefficient of 1.0 to 3.0 × 10 ⁻⁶ cm / cm · ° C. ⁶ .   The refrigerator according to any one of claims 1 to 6, wherein the reinforcing connecting member has a thermal conductivity of 0.1 to 0.2 W / m · K.

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