JP4492241B2 - 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. 8 is a perspective view of a drawer door of a conventional refrigerator. FIG. 9 is a cross-sectional view of main parts of a conventional refrigerator drawer device. FIG. 10 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 mounted movable roller 3, the frame 2 fixed and mounted on the inner box side wall 4, the fixed rail 5 that slides and supports the movable roller 3, the fixed roller 6, 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 sides of the door back 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 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 above, a certain amount of clearance is set between the rail and the roller in the assembled 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 incorporated to the inner box wall surface, and then supports the container on the rail member and the rail. The draft angle in the inner box depth direction of the member mounting surface is set smaller than the draft angle in the upper or lower inner box depth direction continuous to the rail member mounting surface.

  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 dimensional accuracy between the left and right rail members can be increased.

  The refrigerator of the present invention can provide a high-quality and easy-to-use refrigerator with small backlash, high dimensional accuracy, and smooth opening and closing of the drawer even when a load is applied to the container.

The invention according to claim 1 includes 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. Rail members that can be moved back and forth are provided on the left and right sides. The rail members have a fixed rail and a moving rail. 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 the state where the rail member is fixed to the reinforcing member provided on the inner box foam heat insulating material side of the heat insulating box body , the draft angle in the inner box depth direction of the rail member mounting surface is continuous with the rail member mounting surface. is set smaller than the upper or draft angle of the inner box depth direction of downward, the reinforcing member is formed in a piece a different draft angle of the inner box depth direction, up and down so as to cover the rail member mounting surface Are those extending therefrom is secured to the inner box the foam insulating material is filled, it is possible to reduce the clearance between the fixed rail and the moving rail, it is possible to construct a high-quality drawer with less rattling In addition, the strength of the rail mounting surface can be increased, the deformation of the different draft angles of the inner box due to the foaming pressure during foaming can be prevented, the dimensional accuracy between the left and right rail members can be increased, and high quality Can provide a user-friendly refrigerator.

  The invention according to claim 2 is the invention according to claim 1, wherein the left and right rail member mounting surfaces of the inner box are set substantially in parallel, and the dimensions between the left and right rails are substantially the same, and the door is pulled out. In addition, the operability during storage can be further enhanced.

The invention according to claim 3 is the invention according to claim 1 or 2, wherein the reinforcing member is provided with a hole , and the reinforcing member is reinforced when the temperature zones of the plurality of storage chambers are different. Heat transfer from the member can be suppressed, and 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.

  According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, a convex portion is provided below the rail member mounting surface of the inner box and the lower portion of the rail member is provided on the convex portion. The working efficiency at the time of rail member attachment can be improved. Moreover, the strength of the rail mounting surface can be further increased.

  The invention according to claim 5 is the invention according to claim 4, wherein when the rail member is fixed, a space is formed between the convex portion and the lower portion of the rail member. Can be absorbed, and work efficiency can be further increased. Moreover, by forming the space, the flow of cool air can be promoted, and the occurrence of frost, condensation, etc. near the rail can be prevented.

  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 side sectional view of a refrigerator according to Embodiment 1 of the present invention, FIG. 2 is a sectional view taken along line AA in FIG. 1, FIG. 3 is a schematic assembly view of the refrigerator according to the embodiment, and FIG. 5 is an exploded view of the rail member of the refrigerator, FIG. 5 is a cross-sectional view of the rail member of the refrigerator according to the embodiment, FIG. 6 is a perspective view of the main part of the rail member mounting surface of the refrigerator according to the embodiment, and FIG. It is principal part sectional drawing of the rail member attachment surface of the refrigerator of embodiment.

  1 to 7, the heat insulating box 19 of the 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.

  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 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 33 through the inner box 20 in the mounting hole 34, thereby increasing the mounting strength of the fixed rail 31a.

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

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

  In addition, both ends of the reinforcing member 33 reach the vicinity of the center in the vertical direction 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 33, At least the fixing portion 33 c of the reinforcing member 33 is in contact with the surface of the inner box 20 on the side filled with the foamed heat insulating material 22. Further, the left and right reinforcing members 33 are provided with holes 33d.

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

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

  As shown in FIG. 6, the draft angle in the inner box depth direction of the mounting surface 35 of the inner box 20 to which the fixed rail 31 a of the rail member 31 is mounted is the upper or lower inner side continuous with the rail member mounting surface 35. It is set smaller than the draft angle in the box depth direction. Furthermore, it is desirable that the left and right rail member mounting surfaces 35 of the inner box 20 be set substantially in parallel.

  Further, the reinforcing member 33 provided on the inner box foam heat insulating material side of the rail member mounting surface 35 extends vertically so as to integrally cover at least the rail member mounting surface 35 with different draft angles in the inner box depth direction. After forming and fixing to the inner box 20 with a positioning member such as a pin (not shown), the foamed heat insulating material is then filled.

  Further, as shown in FIG. 7, a convex portion 36 is provided below the rail member mounting surface 35 of the inner box 20, and the lower portion of the rail member 31 is positioned on the convex portion 36. To the reinforcing member 33. When the rail member 31 is fixed, the convex portion 36 and a part of the lower portion of the rail member 31 are located in contact with the convex portion 36, and a part forms a space 38 between the convex portion 36. When the rail member 31 is assembled and attached to the inner box 20, the attachment hole of the reinforcing member 33 that is fastened to the screw 37 in a state where the lower portion of the rail member 31 is in contact with the convex portion 36 should be positioned slightly above the screw 37. Is desirable.

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

  Further, since the fixed rail 31a of the rail member 31 provided in each storage chamber is integrally fixed by the single reinforcing member 33, the plurality of rail members 31 arranged vertically can be reinforced at the same time. 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 left and right reinforcement member 33 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 33 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 33 are arranged in the respective storage chambers.

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

  Moreover, normally, when filling and foaming a foam heat insulating material in a heat insulation box, a jig (foaming tool) for restraining is disposed inside to prevent deformation of the inner box due to foaming pressure. In order to make it easy to take out the foaming tool after foaming, a draft angle is generally formed in the foaming tool and the inner box.

  Under such circumstances, in the present embodiment, the draft angle in the inner box depth direction of the mounting surface 35 of the inner box 20 to which the fixed rail 31a of the rail member 31 is mounted is the upper side continuous with the rail member mounting surface 35 or Since it is set smaller than the draft angle in the inner box depth direction, the dimensional accuracy between the left and right rail members can be increased, and the dimensional difference between the front and rear can be minimized when moving the rail back and forth. Thus, it is possible to provide a refrigerator equipped with a high-quality and easy-to-use drawer door.

  Further, by setting the left and right rail member mounting surfaces 35 of the inner box 20 substantially in parallel, the dimensions between the left and right rails are substantially the same, and the operability when the door is pulled out and stored can be improved.

  Further, the reinforcing member 33 provided on the inner box foam heat insulating material side of the rail member mounting surface 35 is formed by vertically extending so as to cover at least the rail member mounting surface 35 with different draft angles in the inner box depth direction. Therefore, the strength of the rail mounting surface can be increased, and the dimensional accuracy between the left and right rails can be further increased by the reinforcing member 33. Further, the reinforcing member 33 is formed by integrally forming different draft angles in the inner box depth direction, so that deformation of different draft portions of the inner box due to foaming pressure at the time of foaming can be prevented, and the rail member mounting surface 35 can be prevented. Even when the draft angle is set to a minimum, the operation of the foaming tool can be performed smoothly.

  Further, a convex portion 36 is provided below the rail member mounting surface 35 of the inner box 20, the lower portion of the rail member 31 is positioned on the convex portion 36, and fixed to the reinforcing member 33 via the inner box 20 with screws 37. Therefore, when the rail member 31 is assembled, the projection 36 can be used for smooth assembly.

  Further, when the rail member 31 is fixed, the convex portion 36 and a part of the lower portion of the rail member 31 are located in contact with the convex portion 36, and a part forms a space 38 between the convex portion 36. 38 can promote the flow of cold air, and can prevent the occurrence of frost, condensation, etc. near the rail.

  At this time, when the rail member 31 is assembled and attached to the inner box 20, the attachment hole of the reinforcing member 33 that is fastened to the screw 37 with the lower portion of the rail member 31 in contact with the convex portion 36 is slightly above the screw 37. By positioning it, it is possible to absorb the mounting variation at the time of mounting the rail member, the molding variation of the inner box, etc., and further improve the working efficiency.

  In addition, by providing the hole 33d in the reinforcing member 33, heat transfer from the reinforcing member 33 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. 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.

  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 actual storage configuration. Reduction and improvement in reliability can be achieved.

  In the present embodiment, the vegetable compartment 27 and the freezing compartment 28 are described as using the rail member 31, but can be appropriately applied to a storage room equipped with a drawer container. For example, you may use for the switching room 25 located in the upper part of the vegetable compartment 27, the ice making room (not shown) attached to the side of the switching room 25, etc.

  Moreover, in this Embodiment, although the reinforcement member 33 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 has a small amount of rattling, and can smoothly open and close the drawer even when a load is applied to the container. It can also be applied to applications such as a cooling storage drawer.

Side sectional view of the refrigerator according to Embodiment 1 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 The principal part perspective view of the rail member attachment surface of the refrigerator of the embodiment Sectional drawing of the principal part of the rail member attachment surface of the refrigerator of the embodiment Perspective view of conventional refrigerator 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 33 Reinforcement member 35 Mounting surface 36 Convex Part 38 space

Claims (5)

A rail member that includes an inner box, an outer box, and a heat insulating box body having a front opening made of a foam heat insulating material filled between the inner box and the outer box, and that allows the container provided inside to move forward and backward. Provided on the left and right, 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 rail member is insulated with the fixed rail and the moving rail being assembled in advance. In the case of fixing to the reinforcing member provided on the inner box foam heat insulating material side, the draft angle in the inner box depth direction of the rail member mounting surface is set in the upper or lower inner box depth direction continuous to the rail member mounting surface. is set smaller than the draft angle, the reinforcing member is fixed while being formed integrally with a different draft angle of the inner box depth direction, in said box extending vertically so as to cover the rail member mounting surface Refrigerator said foam insulation is characterized in that it is filled is.   The refrigerator according to claim 1, wherein the left and right rail member mounting surfaces of the inner box are set substantially in parallel. The refrigerator according to claim 1, wherein the reinforcing member is provided with a hole .   The refrigerator according to any one of claims 1 to 3, wherein a convex portion is provided below the rail member mounting surface of the inner box, and a lower portion of the rail member is positioned on the convex portion.   The refrigerator according to claim 4, wherein a space is formed between the convex portion and the lower portion of the rail member when the rail member is fixed.

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