JPS63233283A - Door supporter for heat-insulating box body - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a support device for a door that opens and closes a plurality of rooms in a heat-insulating box such as a refrigerator.

Conventional technology A conventional example will be explained based on FIGS. 4 to 7.

Reference numeral 1 denotes a heat insulating box for a refrigerator or the like, which includes a metal outer box 3 having a double flange 2 at the opening edge, and a double flange 2 of this outer box 3.
It is composed of an inner box 5 made of synthetic resin into which an opening peripheral flange 4 is fitted, and a foamed heat insulating material 6 filled in both the boxes 3 and 5. Reference numeral 7 denotes a partition wall that partitions the inside of the insulating box 1 into a plurality of chambers 8 such as a refrigerating room and a freezing room, and has a metal cross rail plate 9 fixed to the front by engaging the double flange 2 at one end. .

1o is a metal reinforcing plate with one end welded to the inner side of the double flange 2 and one end aligned with the back surface of the inner box 5, and 11 is reinforced with one end through the inner box 5 with a screw 12. A metal door support reinforcing plate fixed to the plate 10, the other end of which is attached to the cross rail plate 9.
It is along the back side of. Reference numeral 13 designates a hinge having a pin 14, and one end portion 13a of which is fixed to the door supporting reinforcing plate 11 together with the cross rail plate 9 with a screw 16. 16 is a door of the chamber 8 whose lower yN is supported on the pin 14 of the hinge 13 and the upper end is supported on an upper hinge (not shown); 17 is a door provided in the lower chamber 8.

Problems to be Solved by the Invention However, according to the above structure, the one end 13a of the hinge 13, which is the attachment part, is also located outside the heat insulating box 1. In order to prevent the gasket 18 that is in close contact with the heat insulating box body 1 from contacting the gasket 18, the gap between the doors must be large, which gives a poor appearance. Not only does this tend to increase the size and reduce the effective internal volume, but the structure is such that the door 16 is attached not directly to the reinforcing plate 10 fixed to the outer box 1, but via the door-supporting reinforcing plate 11 secured with screws. When the door is opened and closed, the weight is also applied to the cross rail plate 9, causing a partially corrugated phenomenon, which may impede the contact (close contact) of the gasket 18 of the door 16. Furthermore, in view of the above-mentioned problems, the present invention minimizes the gap between the doors, and furthermore, the door support reinforcing plate 11
Since the position of the fixing screw 12 is located on the inner surface of the cross rail plate 9 relative to the maximum vertical dimension, tightening the door support reinforcing plate mounting screw 12 is difficult to avoid when the focusing part of the screwdriver, which is a tool used at the time, escapes. As a result, the notch portion 11a must be provided, which poses a problem in that the strength of the door support reinforcing plate is reduced and the workability of tightening the door support reinforcing plate removal screw 12 is deteriorated.

In view of the above-mentioned problems, the present invention minimizes the gap between doors, makes the partition wall thinner, increases volumetric efficiency, covers one end of the mounting area, and improves the appearance. By making the vertical dimension of the fastening part of the door support reinforcing plate larger than the maximum vertical dimension of the cross rail plate, the strength of the door supporting reinforcing plate is improved, and the assembly workability is also improved at the same time. It is something.

Means for Solving the Problems In order to solve the above problems, the present invention provides a flanged opening in the crossrail plate, and a box-shaped shim fitted with a sealing member on the entire circumference through this opening. The door supporting reinforcing plate is directly fixed to the door supporting reinforcing plate, and the opening is closed with a lid, and the dimension of the fastening portion of the door supporting reinforcing plate is larger than the maximum vertical dimension of the cross rail plate.

Effect of the Invention With the above-described configuration, the present invention does not directly attach the hinge to the crossrail, and the gasket is reliably brought into close contact with the crossrail without causing the corrugated nail phenomenon, and the hinge receiving portion is installed within the crossrail. Since the exposed surface is buried, the gap between the doors can be reduced, and the partition walls can be made thinner, improving volumetric efficiency.The hinge mounting area is covered with a cover body, which also improves the external appearance. be. Furthermore, by making the dimensions of the fastening portion of the reinforcing plate for door support larger than the maximum vertical dimension of the crossrail plate, strength and workability during fastening can be improved.

EXAMPLE An example of the present invention will be described below with reference to FIGS. 1 to 3. Components that are the same as those in the conventional example are given the same reference numerals, and their explanations will be omitted.

19 is an opening formed at one end of the cross rail plate 9;
It has a flange 19a on its periphery that is lowered one step inward.

20 is a hinge having a pin 20a for supporting the door. 2
1 is a box-shaped shim, and the entire circumference is covered with a sealing member 22.
It is attached and sealed by pressure when inserted and fixed. The hinge 20 has a mounting portion 2ob that is one end facing into the partition wall γ from the opening 19 via the shim, and a screw 1.
5, it is fixed to the door supporting reinforcing plate 11, which has screws 12 fixed to the metal reinforcing plate 1o. 23 is hinge 2
A positioning protrusion protruding from the back surface of the double flange 2 fits into a hole 24 provided on the outer edge of the double flange 2. 25 is made to engage with the notch 19b of the flange 19a by elastic deformation of an appropriate number of pawls 25a formed on the periphery, and is held in the same manner as the cross rail plate 9 and detachably attached to the opening 1.
9, and has a notch 2rsb through which the hinge 20 passes. Reference numeral 26 denotes a heat insulating material packed inside the partition wall.The shim 21 is sealed with a sealing material on the inner circumferential edge of the flange 19a, thereby blocking the outside air. In addition, the door support reinforcing plate 11 and the metal reinforcing plate 10
The pitch of the fastening screw 12 is a + b ) c 0 Since the hinge 20 is configured as described above, the protrusion 23 is inserted into the hole 24 and positioned, and the opening 19 is inserted into the hinge 20 . By tightening the screws 15, the mounting part 20b is fixed to the door supporting reinforcing plate 11 via a box-shaped shim 21 fitted with a sealing part 22 material all around. Therefore, since the hinge mounting portion 20b is buried in the opening 19 of the cross rail plate, the gasket 18 of the door 16, 1 does not become the hinge mounting portion 2ob. , the distance between the doors can be reduced, and the partition walls can also be made thinner. The hinge 20 is not directly added to the J2 cross rail plate 19, and the gasket can be reliably brought into close contact without causing a pruning phenomenon of the cross rail plate. Furthermore, since the hinge mounting portion 20b is attached via a box-shaped shim 21, the sealing member 22 attached to the entire circumference of the shim 21 and the inner peripheral edge of the opening flange 19a of the cross rail plate 9 are sealed. It is isolated from the outside air and can minimize heat leakage into the refrigerator. In addition, since the lid body 25 covers the hinge mounting portion, the appearance can be improved. Furthermore, the pitch of the fastening screws 12 between the door support reinforcing plate 11 and the metal reinforcing plate 10 is set to a 4 - b.
) c), there is no need for a screw tightening notch in the fastening screw 12, which improves screw tightening workability and improves the strength of the door supporting reinforcing plate.

Effects of the Invention As described above, in the present invention, the hinge mounting part is screwed to the door support reinforcing plate through the shim from the opening formed in the cross rail plate, and the opening part Since it is removably closed with a lid, the door gasket does not escape from the hinge mounting part as in the conventional case, and the gap between the doors can be minimized. volumetric efficiency. In addition, since it is not attached via the cross rail plate, the gasket can be reliably sealed without causing any waving of the cross rail plate, and the sealing material installed on the shim can be press-sealed to the flange of the cross rail plate. This not only makes it possible to reduce heat from outside the refrigerator through the hinge, but also improves the appearance of the refrigerator because the lid covers the hinge mounting area. Furthermore, when connecting the reinforcing plate for door support and the metal reinforcing plate, the maximum vertical dimension of the cross rail plate is made larger than the maximum vertical dimension of the cross rail plate, so when tightening the fastening parts such as screws, there is a cutout that is the escape part of the screwdriver pit. There is no need to provide any notches, the strength of the reinforcing plate for supporting the door is prevented from decreasing, and the workability of tightening the fastening parts is improved.

[Brief explanation of drawings]

Fig. 1 is a perspective view of the main parts of a refrigerator showing an embodiment of the present invention with the door removed, Fig. 2 is a sectional view taken along line A-A in Fig. 1, and Fig. 3 is a view of the door support device. Exploded perspective view, Figure 4 is a perspective view of the main part of the conventional example with the door removed, Figure 5 is B- in Figure 4.
The cross-sectional view of line B, Figure 6 is the adiabatic diagram of line -C of Figure 4,
FIG. 7 is an exploded perspective view of a conventional door support device. 1... Insulated box body, 3... Outer box, 5...
...Inner box, 6...Insulation material, 7...
Partition wall, 9...Cross rail board, 10...
...Reinforcement plate, 11...Door support reinforcement plate, 12゜1
5... Screw, 20... Hinge, 21.
...Shim, 22...Seal member, 25.
...Lid body. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 4
Figure 1S opening 1):? G3-23328:3 (5) Figure 6 Figure 7, ? = Toru 4 □・

Claims (1)

[Claims] An insulating box body consisting of an outer box with a double flange formed on the opening edge, an inner box with an opening peripheral flange inserted between the double flanges, and a heat insulating material filled between both boxes, and this insulating box. A cross rail plate having an opening via a flange at one end provided on the front side of a partition wall that partitions the body into multiple chambers, and a reinforcing plate provided along the back surface of the inner box from the double flange are screwed. a reinforcing plate for supporting the door; and a hinge for supporting the door of the heat insulating box; A reinforcing plate is provided along the back surface of the inner box from the double flap register, and includes a removable cover that is buried and fixed to the door supporting reinforcing plate with screws and that closes the opening of the cross rail plate. The dimension from the hinge mounting screw position of the door supporting reinforcing plate to the upper end of the door supporting reinforcing plate and one or both ends of the fastening portion of both of these reinforcing plates is a, the dimension from the lower end to the same is b, and the cross A door support device for a heat insulating box body having a positional relationship such that a+b>c when the maximum vertical dimension of a rail plate is c.