JP2657136B2 - Emergency escape device for prefabricated storage - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an emergency escape device for a prefabricated storage such as a prefabricated refrigerator / refrigerator, particularly when a latch body for holding a door closed cannot operate due to freezing or the like. .

[0002]

2. Description of the Related Art In this type of prefabricated refrigerator, a worker enters a refrigerator to deliver articles and the like.
As shown in Japanese Patent No. 36, a handle member (latch main body) is attached to the door body, and the door body can be opened and closed by operating the handle member from outside and inside the warehouse.

FIG. 10 is a plan sectional view of a door 100 of the conventional prefabricated refrigerator shown in FIG. Door body 10 made of heat insulating wall
On the front surface, a latch body 101 is mounted, and on a side panel 102 forming a storage opening in which the door body 100 can be opened and closed, a latch receiver 103 is mounted at a position corresponding to the latch body 101 when the door body 100 is closed. Have been. The hook 105 protruding from the latch body 101 is engaged with the side plate panel 102 side of the latch receiving roller 104 at the tip of the latch receiver 103 so that the door 1
00 is kept in the closed state.

[0004] The latch body 101 has a mechanism 111 inside, and a hook 105 is operated by operating a handle 106 on the outside of the refrigerator.
The hook 105 is also configured to be able to protrude and retract by operating the push rod 108 for operating the inside of the refrigerator, which penetrates through the door body 100 from the inside of the refrigerator 107, so that the hook 105 and the latch receiving roller 104 The engagement can be released from both inside and outside of the refrigerator.

Here, if the inside of the latch body 101 freezes due to cold air from inside the refrigerator or temperature conditions outside the refrigerator and the hook 105 cannot move in and out, there is a danger that workers will be trapped in the refrigerator. Because of this, the latch receiver 103 is provided with a release shaft
When the latch main body 101 is inoperable, the release shaft 109 is loosened from the inside 107 using the emergency escape handle 110, and the latch receiver 103 is dropped from the side panel 102 to remove the door body. 100 can be opened.

[0006]

However, with this emergency escape structure, when the storage opening is located at the front end of the prefabricated refrigerator and the latch receiver must be attached to the end face of the side panel, the latch receiver is required. A hole through which a release shaft for fixing the through hole cannot be formed in the side panel. Therefore, in such a case, it is necessary to add a new storage opening frame for installing the release shaft, and in addition to an increase in the number of parts and assembly work, there has been a problem that the size of the storage opening is reduced.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and is not limited by the position of the storage port, and can constitute an emergency escape device without increasing the number of parts. The purpose of the present invention is to provide an emergency escape device.

[0008]

SUMMARY OF THE INVENTION According to the present invention, a latch receiver 2 is provided.
The latch body 11 having the hook 14 engaged with the hook 9 is attached to the door body 2 and the hook 14 is directly or indirectly operated by the outside handle 13 or the inside operation push rod 6 so that the hook 14 can be moved from the outside and inside the warehouse. in prefabricated reservoir which enables opening the door body 2, a latch positioning plate 4 attached to the door body 2, attached to the latch body 11, fitted detachably to the door body 2 forward relative to latch the positioning plate 4 , Hook side
A corner drop part 20 is slanted toward the front of the door body 2 at the corner of
A release shaft 7 that penetrates the formed latch base plate 15, the door body 2 from the inside of the refrigerator 24, and is screwed to the latch body 11, and fixes the latch body 11 to the door body 2. An operation unit 2 provided on the inside of the refrigerator 24 for releasing the screwing of the release shaft 7
7 constitutes an emergency escape device.

[0009]

The latch base plate 15 is attached to the latch body 11 and fitted to the latch positioning plate 4, so that the positioning of the latch body 11 at the time of attachment becomes easy. The latch body 11 is fixed to the door body 2 by the release shaft 7. When the operation of the latch body 11 becomes impossible, the screwing of the release shaft 7 to the latch body 11 is released by the operation unit 27. The latch base plate 15 is angled with the latch body 11.
With the hook 20 as a fulcrum, the hook 20 is smoothly rotated by the hook portion 20 , disengages from the latch positioning plate 4 to the front of the door 2, and the engagement between the hook 14 and the latch receiver 29 is released. Therefore, there is no need to provide the latch receiver 29 with any escape structure.

[0010]

Next, an embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a plan sectional view of a door 2 of a prefabricated refrigerator 1 as an embodiment of a prefabricated storage according to the present invention.

In FIG. 1, a prefabricated refrigerator 1 has a storage opening 3 formed at the front end thereof, and one side of the storage opening 3 is openably and closably closed by a door 2 pivotally supported. A latch positioning plate 4 is screwed to the front surface of the door body 2 formed of a heat insulating wall. As shown in the plan view of FIG. 2 and the side view of FIG. 3, the latch positioning plate 4 is formed of a rectangular plate material, and has four holes 5 for screwing, a push rod 6 for operation of the inside of the refrigerator described later, and Holes 8 and 9 through which the release shaft 7 is inserted are formed. At the center of the latch positioning plate 4 on the free end side of the door 2, an engaged portion 10 that rises in a stepwise manner is bent.

The metal latch body 11 has a mechanism 1 inside.
When the handle 13 on the outside of the refrigerator is pulled toward the user, the mechanism 12 directly or indirectly acts on the hook 14 so that the hook 14 can freely move in and out in the left-right direction. A latch base plate 15 is screwed to the bottom surface of the latch body 11. As shown in the plan view of FIG. 4 and the side view of FIG.
And a rectangular body having a peripheral side surface 15B and a top surface 15B.
A is provided with four holes 16 for screwing, and holes 18 and 19 through which the push rod 6 for operating the inside of the refrigerator and the release shaft 7 are inserted. Also, the side surface 15 of the latch base plate 15
The inner size of B is slightly smaller than the outer size of the latch positioning plate 4, and a side surface 15C on the hook 14 side is formed.
Is low and the side 1 adjacent to both sides of the side 15C
At the corners on the hook 14 side of 5B and 15B, there is formed a corner drop portion 20 which is obliquely deleted toward the end of the side surface 15C. Further, an engaging portion 21 extending inward from the center of the end of the side surface 15C is bent.

After attaching the latch base plate 15 to the latch body 11, the latch base plate 15 is put on the latch positioning plate 4 of the door 2 from the front. At this time, as shown in FIG. 6 to FIG.
1 is engaged with the rear surface of the engaged portion 10 of the latch positioning plate 4,
The side surface 15B of the latch base plate 15 is the latch positioning plate 4
To be detachably fitted to the front. As a result, the latch body 11 is positioned with respect to the door body 2, and the hole 18 is located in front of the hole 8 and the hole 19 is located in front of the hole 9.

The door 2 is provided with a through hole 23 through which the release shaft 7 is inserted from the inside 24 of the refrigerator.
The threaded end portion 7A of the release shaft 7 passes through the hole 9 of the latch positioning plate 4 and the hole 19 of the latch base plate 15, and is screwed into the screw hole 25 of the latch body 11, whereby the latch body 11 is closed. Fixed to 2. Further, a circular handle-like operating portion 27 for releasing the screwing of the screw hole 25 of the latch body 11 and the screw portion 7A is provided on the inside 24 side of the release shaft 7.
Is attached.

On the other hand, the side panel 2 forming the storage opening 3
A latch receiver 29 is screwed to the end surface 28A of the position 8 at a position corresponding to the latch body 11 when the door 2 is closed. A latch receiving roller 30 is provided at an end of the latch receiving roller 29, and the hook 2 projecting from the latch body 11 is engaged with the side of the side panel 28 of the latch receiving roller 30 to hold the door body 2 in a closed state. I do. The hook 14 receives a pressing force from the latch receiving roller 30 in the direction of the end surface 28A of the side panel 28 so that the sealing gasket 31 attached around the inner surface of the door body 2 comes into close contact with the end surface 28A of the side panel 28 in the closed state. It is configured.

A guide tube 32 penetrating therethrough is attached to the door body 2 on the side of the through hole 23.
The push rod 6 for inside operation is inserted into the inside 2 from the inside 24 side. The push rod 6 for operating the inside of the compartment is freely inserted and removed within a predetermined range by a coil spring 33, passes through the hole 8 of the latch positioning plate 4 and the hole 18 of the latch base plate 15, and the tip thereof is a mechanism inside the latch body 11. The unit 12 is reached. Further, the latch body 11 is configured such that, even when the push rod 6 for operating the inside of the storage compartment is pushed, the mechanism section 12 directly or indirectly acts on the hook 14 so that the hook 14 comes and goes. Numeral 14 is free to come and go from both inside and outside of the refrigerator, and the engagement between the hook 14 and the latch receiving roller 30 can be released from both inside and outside of the refrigerator.

Here, while the worker is working in the refrigerator 24, the mechanical part 12 inside the latch body 11 freezes due to cold air from the refrigerator 24 or temperature conditions outside the refrigerator, so that the hook 14 cannot move in and out. In the event that the operation unit 27 is
To release the screw engagement between the screw portion 7A of the release shaft 7 and the screw hole 25 of the latch body 11 as shown in FIG. At this time, since the latch base plate 15 can be detached from the latch positioning plate 4 to the front of the door 2, the fixing of the latch body 11 to the door 2 is released, and thereafter the pressing force from the latch receiving roller 30 is released. As a result, the hook 1 is engaged with the engaging portion 21 of the latch base plate 15 and the engaged portion 10 of the latch positioning plate 4.
The latch body 11 rotates as indicated by a two-dot chain line in FIG. At this time, since the corner drop portion 20 is formed on the latch base plate 15, the latch body 11 can rotate smoothly without any trouble. By this rotation, the engagement between the hook 14 and the latch receiving roller 30 is released, and the door 2 can be opened manually.

As described above, even in an emergency when the operation of the latch body 11 is disabled, the hook 14 of the latch body 11 can be released by unscrewing the release shaft 7 located on the door 2 and the latch body 11. And the latch receiver 29 can be disengaged from the latch receiver roller 30, so that there is no need to form an emergency escape structure in the latch receiver 29. Therefore, even if the mounting position of the latch receiver 29 is the end face of the side panel 28, the emergency escape device of the prefabricated refrigerator 1 can be configured without any trouble.

In the embodiment, the present invention is applied to a prefabricated refrigerator. However, the present invention is not limited to this, and may be a prefabricated freezer or a storage in which the temperature is not adjusted. When the inside of the refrigerator is cooled to the freezing temperature, the inside of the latch body tends to freeze, and the present invention is particularly effective.

[0020]

According to the present invention, since the release shaft is provided on the side of the latch body attached to the door body, the emergency escape device is not restricted by the attachment position of the latch receiver and regardless of the position of the opening of the prefabricated storage. Can be configured. Therefore, even when the storage port is located at the end of the prefabricated storage box, it is not necessary to add a special storage port frame, and it is possible to prevent an increase in the number of parts and assembling work and a reduction in the storage port size.

Further, the latch base plate is detachably engaged with the latch positioning plate , and is connected to the hook side of the latch base plate.
At the corner of the door, there is a diagonal cut off diagonally toward the front of the door.
After the screw is released from the release shaft and the latch body,
The latch base plate and the latch body are
Can rotate smoothly with the lock side as a fulcrum
As a result, the hook is smoothly released from the engagement with the latch receiver, and the latch body is positioned by fitting the latch base plate and the latch positioning plate. Installation work of the main body is also facilitated.

[Brief description of the drawings]

FIG. 1 is a plan sectional view of a door portion of a prefabricated refrigerator.

FIG. 2 is a plan view of a latch positioning plate.

FIG. 3 is a side view of a latch positioning plate.

FIG. 4 is a plan view of a latch base plate.

FIG. 5 is a side view of the latch base plate.

FIG. 6 is a plan view of the latch positioning plate and the latch base plate in a fitted state.

FIG. 7 is a side view of the latch positioning plate and the latch base plate in a fitted state.

FIG. 8 is a sectional view taken along line AA of FIG. 6;

FIG. 9 is a plan cross-sectional view of the door portion of the prefabricated refrigerator in a state where the screwing between the latch body and the release shaft is released.

FIG. 10 is a plan sectional view of a door portion of a conventional prefabricated refrigerator.

[Explanation of Signs] 2 Door body 4 Latch positioning plate 6 Push rod for operation inside warehouse 7 Release axis 11 Latch main body 14 Hook 15 Latch base plate 27 Operation unit 29 Latch receiver 30 Latch receiver roller

Claims (1)

(57) [Claims] 1. A latch body having a hook engaged with a latch receiver is attached to a door body, and the hook is directly or indirectly operated by a handle outside the warehouse or a push rod for operating the inside of the warehouse. in a more prefabricated reservoir which enables opening the door body, removably mate with latch positioning plate attached to the door body, to the door body forward relative to the attached said latch positioning plate to said latch body
Then, at the corner on the hook side, drop the corner diagonally toward the front of the door body
A latch base plate formed with a hook portion, a release shaft that penetrates through the door body from the inside of the warehouse, is screwed to the latch body, and fixes the latch body to the door body, and is provided inside the warehouse of the release shaft. And an operation unit for releasing the screwing of the release shaft.