JPH0245746Y2 - - Google Patents

Description

[Detailed explanation of the invention] [Industrial application field] This invention relates to a safety device for doors in refrigerators, freezers, etc., and more specifically, it is designed to prevent the door body from accidentally breaking when someone is inside the refrigerator. This invention relates to an improvement in the safety device for the door of a refrigerator, etc., with the purpose of ensuring that the door can be evacuated under stress if the door is locked.

[Prior Art] As a conventional safety device of this type, for example,
As shown in the figure, a refrigerator is known in which a latch lock e is unlocked by operating a slidable operating rod d that passes through a door c that opens and closes an entrance opening b of a refrigerator a. . This safety device consists of a pipe h that is inserted into a through hole g that is drilled in an embedded wood f that is embedded in the door body c, and an operating rod d that is slidably inserted into the pipe h. Then, a washer j having a hat-shaped cross section is arranged on the inside of the refrigerator of the pipe h, and a seat plate i is attached to the inside surface of the door c with a felt airtight ring k interposed between the washer j and the washer j. In addition, a retaining pin l is provided to protrude through and perpendicularly to the operating rod d to prevent the operating rod d from coming off. Further, as shown in Fig. 6, a washer m with an outward flange is provided on the exposed end surface of the pipe h exposed inside the refrigerator, and a felt airtight ring n is interposed between this washer m. It is also known that a seat plate o having a hat-shaped cross section is attached.

[Problems to be solved by the invention] However, in the former case, that is, the one shown in FIG. Freezing occurred on the inside of the refrigerator inside the through hole g, which made it difficult to operate the operating rod d, and there was a possibility that the unlocking operation would be difficult. In addition, in the latter case, that is, the one shown in FIG. There was a risk that icing would occur, making it difficult to operate the operating rod d as in FIG. 5, and also making the unlocking operation difficult. Furthermore, in any of the conventional methods, the embedded wood f
Since the seat plates i and o are fixed with screws and the center of the operating rod d is aligned with each other, there are problems such as poor accuracy and complicated assembly work.

[Means for solving the problem] This invention was devised in view of the above-mentioned circumstances, and in order to solve the above-mentioned problem, it aims to speed up the assembly work and improve the accuracy of the installation, and also to prevent freezing. An object of the present invention is to provide a safety device for a door of a refrigerator or the like, which is characterized in that the unlocking operation can be performed safely.

That is, this invention consists of a catch that is fixed to the door body for attaching a latch lock to the door body for opening and closing an entrance/exit opening provided in a refrigerator, etc., and a through-hole drilled in the door body. In a safety device for a refrigerator, etc., which comprises a guide tube that is inserted through the guide tube, and an operating rod that penetrates the inside of the guide tube and projects to the outside of the refrigerator, the outer end of which engages with the unlocking portion of the latch lock, the guide tube has the following features: The outer end of the catch plate is fitted into a cylindrical hole protruding from the side surface of the door body, and the inner end thereof is fitted into a hole in a catch plate buried inside the door body. combined,
The operating rod is inserted into the guide cylinder through an air/watertight ring packing and a washer provided in a detached part provided on the inner end side of the guide cylinder, and is inserted into the guide cylinder at an intermediate portion thereof. It is an object of the present invention to provide a safety device for a door in a refrigerator or the like, characterized in that a locking pin protruding into the refrigerator which can be engaged with the washer is provided.

In this invention, the outer end of the guide cylinder is fitted inside or outside of the cylindrical through hole of the seat. On the other hand, the air/water-tight ring packing is made of rubber or the like, and the stepped portion is composed of the inner end surface of the guide tube and a through hole of the receiving plate, or is composed of a rib protruding from the inner surface of the guide tube. It consists of the inner surface of the guide tube.

[Effect] The above technical means works as follows.

As mentioned above, by fitting both ends of the guide tube into the cylindrical through-hole provided in the catch seat for attaching the latch lock and the through-hole provided in the catch plate, the positioning during assembly is achieved. can be easily assembled and assembled with high precision. In addition, by inserting the operating rod into the stepped part provided at the inner end of the guide tube through the air/water tight ring packing and washer,
It can prevent freezing and can be easily unlocked from inside the refrigerator.

[Example] An example of this invention will be described below based on the drawings.

FIG. 1 shows a sectional view of the first embodiment of the safety device of this invention. 3, a guide tube 5 that is inserted into a through hole 4 bored in the door body 2, and an outer end that penetrates the inside of the guide tube 5 and projects to the outside of the refrigerator. The main part is constituted by an operating rod 6 that engages with the main body (not shown). In this case, the door body 2 has a sandwich structure in which a heat insulating core material 9 such as foamed polyurethane is filled between a pair of metal surface plates 7 and 8.

As shown in FIGS. 1 and 4a and 4b, the catch seat 3 includes a fixed base plate 10 made of a steel plate buried inside a surface plate 7 constituting the door body 2, and this fixed base plate 10.
It is formed of a seat body 13 having large and small letter-shaped parts 11 and 12 bent at both ends, respectively, and the fixed base plate 10 has four screw hole nuts 14 for attaching the latch lock 1. It is fixed by means such as welding, and a cylindrical through hole 15 is formed on the side surface of the door body of the fixed base plate 10 by burring.

The guide cylinder 5 is made of a heat insulating material such as vinyl chloride, and the outer end of the guide cylinder 5 is fitted inside or outside the cylindrical through hole 15, and The end is the surface plate 8 on the inside of the door body 2.
and a receiving plate 1 for buried wood etc. buried in the insulating core material 9.
It is fitted into a through hole 17 provided in 6. A stepped portion 18 is formed by the inner end surface of the guide cylinder 5 and the through hole 17 of the receiving plate 16. The operating rod 6 is inserted through the guide cylinder 5. (See Figure 2). A pin 21 for preventing the pin 21 from coming off into the refrigerator, which can be engaged with the washer 20, is provided in the middle of the operating rod 6 and protrudes perpendicularly to the operating rod 6. Further, a knob portion 22 is attached to the inner side end of the operating rod 6.

In the above embodiment, the case where the stepped portion 18 on which the air/water tight ring packing 19 and the washer 20 are arranged is composed of the inner surface of the guide tube 5 and the through hole 17 of the receiving plate 16 has been described, but this is not necessarily the case. This structure is not necessary, and the stepped portion 1 is composed of the rib 23 protruding from the inner surface of the guide tube 5 and the inner surface of the guide tube 5.
8 (see Figure 3).

[Effects of the invention] As explained above, according to the safety device of this invention, guide tubes are provided in the cylindrical through hole provided in the catch seat for attaching the latch lock and the through hole provided in the catch plate, respectively. Since both ends are fitted together and the operating rod is inserted through the stepped portion provided at the inner end of the guide tube with an air/water tight ring packing and washer interposed, the following effects can be obtained.

1. Since the guide cylinder is fitted into the cylindrical through-hole part received by the seat, positioning during assembly can be easily performed and assembly can be performed with high precision.

2. Since the seat plate only needs to be installed on the inside of the refrigerator,
In addition to improving heat insulation, assembly can be facilitated.

3 Air/water tight ring packing is always in close contact with the operating rod inside the refrigerator, so it is possible to minimize the flow of cold air from the inside of the refrigerator to the outside of the refrigerator, preventing freezing and improving safety. can.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing the first embodiment of the safety device of this invention, Fig. 2 is an enlarged sectional view showing the main part of Fig. 1, and Fig. 3 shows the main part of the second embodiment of this invention. The enlarged sectional view, FIGS. 4a and 4b are a plan view and side view of the catch in this invention, and FIGS. 5 and 6 are sectional views showing a conventional safety device, respectively. Code explanation, 1... Latch lock, 2... Door body, 3...
...Catch seat, 4...Through hole, 5...Guide tube, 6...Operation rod, 15...Cylindrical through hole part, 16...Batch plate, 17
...Through hole, 18...Step, 19...Air/water tight ring packing, 20...Washer, 21...Removal prevention pin, 23...Rib.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A catch fixed to the door body for attaching a latch lock to the door body for opening and closing an entrance/exit opening provided in a refrigerator, etc.; A safety device for a refrigerator, etc., comprising a guide tube inserted into a through hole, and an operating rod that penetrates the guide tube and projects to the outside of the refrigerator, and whose outer end engages with the unlocking part of the latch lock. In the above, the outer end of the guide tube is fitted into a cylindrical through hole protruding from the side surface of the door body of the catch seat, and the inner end thereof is fitted into a catch plate embedded in the inside of the door body. The operating rod is inserted into the guide tube through an air-watertight ring packing and a washer provided on a step provided on the inner end side of the guide tube. A safety device for a door in a refrigerator or the like, characterized in that the door is inserted into the refrigerator, and has a protruding pin in the middle thereof which can be engaged with the washer. (2) The safety device for a door in a refrigerator or the like as set forth in claim 1 of the utility model registration claim, wherein the stepped portion is comprised of the inner end surface of the guide cylinder and the through hole of the receiving plate. (3) The safety device for a door in a refrigerator or the like as set forth in claim 1, wherein the stepped portion is comprised of a rib protruding from the inner surface of the guide tube and the inner surface of the guide tube.