JP2006299517A - Storage shed - Google Patents

Abstract

There is provided a storage which can easily and reliably lock and unlock a door with a simple configuration.
A locking device includes a rotary shaft provided with hooks at both ends, a release spring for applying a rotational force for releasing the engagement between the hook receiver and the hook to the rotary shaft, An operating plate 25 attached to the rotating shaft and formed with a step portion 26 on one side, and a locking portion 34 that is rotatably attached to the operating shaft 32 and engages with the step portion of the operating plate are provided on one side. The latch 33, the operation spring 36 for applying a rotational force opposite to the rotational force to the latch, and the door are provided so as to be able to advance and retreat, and the end portion 41 faces the abutting portion 35 of the latch. A release button 40. When the door is closed, the hook is engaged with the hook receiver, the operating plate is rotated together with the rotating shaft, the stepped portion of the operating plate and the latching portion of the latch are engaged, and the door is locked. The release button is operated to press the abutting portion of the latch, rotate the latch, and unlock the latch by releasing the latching portion of the latch from the step portion of the operating plate.
[Selection] Figure 5

Description

The present invention relates to a storage provided for storing articles in a cold car, a freezer car, and the like. It is related with the store | warehouse | chamber provided with the locking device which enabled the locking and unlocking (release of locking) of this to be easy and reliable.

In a conventional storage such as a cold car, an opening is provided for taking in and out the stored articles, and a double door is provided in the opening. The door is locked by attaching a shaft having a length substantially the same as the height of the door to one door, and providing hooks that engage with hook receivers provided near the opening at both ends of the shaft. Yes. Then, a lever is provided at an intermediate portion of the shaft via a hinge, the shaft is rotated by the lever, and the hook receiver and the hook are engaged with each other. In order not to disengage, the lever is fixed to the lever fixing bracket provided on the other door so that the other door is locked simultaneously with the one door.

However, in such a storage, in order to close or open the door, in addition to the operation of pushing and pulling the door, the hook receiver and the hook are disengaged or engaged each time. Requires the work of rotating the lever. Further, in order to lock or unlock the door, it is necessary to work to bring down or raise the lever, so that the workability is extremely poor. For this reason, there existed a fault that the operation of taking in / out the stored article from the door of the storage could not be performed efficiently with good workability.

The present invention has been made in order to solve the above-described problems. With a simple configuration, an operation for loading and unloading stored articles from a storage door can be performed efficiently and efficiently. It is an object of the present invention to provide a storage that can be easily and reliably locked and unlocked.

The means of the present invention for solving the above-described problem is a storage body, an opening provided in the storage body, and an opening for taking in and out articles, and an opening for closing or opening the opening. And a storage provided with the door and a locking device for locking the door. The locking device is attached to the door and is rotatable with respect to the mounting plate. A rotating shaft provided with hooks that are attached to both ends and are opposed to hook receivers that are attached in the vicinity of the opening and that engages with the hook receivers, and the hook receiver and the A release spring provided to always apply a rotational force for releasing the engagement with the hook, and a rotary spring attached to the rotary shaft, forming a step portion on one side, and rotating in the same direction as the rotary shaft Force by the release spring And an operation shaft disposed in parallel to the rotation shaft on the mounting plate, and is rotatably attached to the operation shaft so as to form a pair with the operation plate. The latch is provided on one side to engage with the step portion of the operating plate with the operating shaft as a boundary, and a latch provided with a contact portion on the other side, and the latch is operated by the release spring. An operation spring provided to always apply a rotational force opposite to the rotational direction applied to the plate;
A release button provided on the door so as to be capable of advancing and retreating and having an end facing the abutting portion of the latch, and the locking of the door closes the door so that the hook receiver A hook is engaged, and at this time, the hook is brought into contact with the hook receiver and the rotation shaft is rotated, whereby the operation plate is rotated, and the step portion of the operation plate and the latch are Engagement with the locking portion prevents rotation of the operating plate, so that the engagement between the hook and the hook receiver is maintained, and the rotational force of the rotating shaft to release the engagement is maintained. The door is locked, and the door is unlocked by operating the release button, pressing the abutting portion of the latch, rotating the latch, and locking the latching portion of the latch. The hook receiver attached to the rotating shaft by removing it from the step of the operating plate It releases the suppression of the rotational force to release the engagement between the serial hook, in which so as to unlock the lock.

Further, the storage according to claim 2 is the storage according to claim 1, wherein the step portion of the operating plate is
It is formed by a plurality of steps.

Furthermore, the storage according to claim 3 is the storage according to claim 1, wherein the hook is provided with an engagement groove having one side opened, and the engagement groove and the hook receiver are engaged with each other. .

According to the storage of claim 1, the rotating shaft provided with the hook, the release spring provided to apply a rotational force for releasing the locking to the rotating shaft, the rotating shaft attached to the rotating shaft, A latch that is pivotally attached to the operation shaft so as to face the operation plate,
An operating spring for applying a rotational force to the latch and a release button provided on the door are provided to constitute a storage provided with a locking device, and the locking of the door is achieved by closing the door and closing the hook receiver. At the same time, the step portion of the operating plate and the latching portion of the latch are engaged with each other, the rotation of the operating plate is suppressed, the engagement between the hook and the hook receiver is held, and the engagement is attempted to be released. Locking is performed by suppressing the rotational force of the rotating shaft, and unlocking the door is done by pressing the release button and removing the latch from the stepped portion of the operating plate, thereby engaging the hook receiver applied to the rotating shaft with the hook. Since the release of the rotational force to be released is released and the lock is unlocked, the door can be closed by simply pressing the handle of the door or an appropriate location. Can be locked automatically. Further, the door can be unlocked simply by pressing the release button, and the door can be released simply by pulling the handle or an appropriate portion after unlocking. In other words, the door can be closed, locked, unlocked, and released by a one-touch operation. For this reason, the operation of putting in and out the stored articles from the door of the storage can be efficiently performed with good workability. Furthermore, the door is locked and unlocked with a release spring,
Because the action force of the spring of the operation spring is used, vibration and shock generated during locking and unlocking, and vibration and shock from the outside to the locking device can be absorbed and mitigated by the spring part, and the durability of the locking device can be improved. Can also be improved.

According to the second aspect of the present invention, since the step portion of the operation plate is formed by a plurality of step portions, the operation plate and the latch are locked through a plurality of engagement stages in the door closing process. Because
The operation force, vibration, impact, etc. due to the locking operation are dispersed and relaxed, the operation is smoothed, and the locking operation can be surely prevented from malfunctioning.

According to the third aspect of the present invention, the hook is provided with an engagement groove that is open on one side, and the engagement groove is engaged with the hook receiver. The combined state can be held more reliably.

Hereinafter, an embodiment when the storage of the present invention is applied to a cold car will be described with reference to the drawings.
Reference numeral 1 denotes a cold storage vehicle, and the cold storage vehicle 1 is schematically composed of a vehicle 2 and a storage body 3 installed in the vehicle 2. 4 is an opening provided in the storage body 3 for taking in and out articles.
The storage 3 is formed in a box shape as a whole, and includes an inner box 5, an outer box 6, and a heat insulating material 7 filled between the two boxes. 8 and 8 are doors with double doors provided in the opening 4 to close or open the opening 4. The doors 8 and 8 are provided so as to be located on the back surface of the cold-storage vehicle 1. The doors 8 and 8 are configured to be openable and closable via hinges 10 by operating the handle 9. The door 8 has an inner plate 11, an outer plate 12, and a frame 13 that forms a side portion, and the inside is filled with a heat insulating material 7. And the cold storage vehicle 1 accommodates fresh foods, frozen foods, etc. in the store | warehouse | chamber 3, and keeps the inside of a store | warehouse | chamber in a low temperature state by this store | warehouse | chamber 3, thereby transporting these goods.

    Reference numerals 14 and 14 denote locking devices which are respectively provided on the doors 8 and 8 of the storage 3 and lock the doors 8 and 8 independently for each door. Reference numeral 15 denotes a mounting plate for the locking device 14, which includes a mounting piece 16 and a support piece 17 having a U-shaped cross section attached to the mounting piece 16 by means such as welding. It is attached to the door 8 via. 18 is attached to the mounting plate 15 so as to be rotatable, and is welded to both ends of the hook 20 which is opposed to the hook receiver 19 attached in the vicinity of the opening 4 and engages with the hook receiver 19. It is a rotating shaft that is fixed and provided by such means. The hook 20 is provided with an engagement groove 21 that is open on one side, and the engagement groove 21 and the hook receiver 19 are engaged with each other. A first holding part 22 and a second holding part 23 are formed on both sides of the engaging groove 21. The hook receiver 19 is formed in a U shape as a whole, and has a circular cross section so that it can be smoothly engaged with the engagement groove 21. A release spring 24 is provided so as to always apply a rotational force for releasing the engagement between the hook receiver 19 and the hook 20 to the rotary shaft 18. Reference numeral 25 denotes an operating plate that is fixedly attached to the rotary shaft 18 by means of welding or the like and forms a step portion 26 on one side. The step portion 26 is formed of a first step portion 27 and a second step portion 28. The release spring 24 is formed of a torsion coil spring. The coil portion 29 is inserted into the rotary shaft 18, and one end 30 of the coil portion 29 is brought into contact with the mounting plate 15 and the other end 31 is supported by the operation plate 25. It is attached so as to be hooked on the portion 43, and a rotational force for releasing the engagement between the hook receiver 19 and the hook 20 is always applied to the operating plate 25. That is, the rotational force for releasing the engagement between the hook receiver 19 and the hook 20 with respect to the rotary shaft 18 is applied by the release spring 24 via the operation plate 25.

    Reference numeral 32 denotes an operation shaft disposed on the mounting plate 15 in parallel with the rotation shaft 18. Reference numeral 33 is attached to the operation shaft 32 so as to be opposed to the operation plate 25 so as to be rotatable, and engages with the step portion 26 of the operation plate 25 on one side with the operation shaft 32 as a boundary. The latch is provided with a locking portion 34 and a contact portion 35 on the other side (a hook or stopper). Reference numeral 36 denotes an operation spring provided so as to always apply a rotational force opposite to the rotational direction applied to the operation plate 25 by the release spring 24 to the latch 33. The operation spring 36 is formed of a torsion coil spring. The coil portion 37 is inserted into the operation shaft 32, one end 38 of the coil portion 37 is brought into contact with the mounting plate 15, and the other end 39 is brought into contact with the latch 33. It is attached in the vicinity of the portion 35. Reference numeral 40 denotes a release button that is provided on the door 8 so as to be able to move forward and backward, and has an end 41 facing the contact portion 35 of the latch 33. The release button 40 is provided on the handle 9 for easy operation. The release button 40 is always pressed and held on the side of the handle 9 by a spring (not shown). After pressing against the spring, when the pressing is stopped, the release button 40 returns to its original position. When the door 8 is large and the rotary shaft 18 is long, as shown in FIGS. 2 and 3, the support plates 42 and 42 that rotatably support the rotary shaft 18 near the hooks 20 and 20 are supported. If the door 8 is provided, the operation of the locking device 14 becomes smoother.

Next, the operation of the storage configured as described above will be described. 1, 3, and 4 show a state in which articles are accommodated in the storage 3 of the cold car 1 and the opening 4 of the storage 3 is closed with doors 8 and 8. FIG. 2 shows a state in which the doors 8 and 8 are opened, and the door 8 is closed by closing the door 8 in the direction of the chain line arrow.

FIG. 6A shows an engaged state between the hook 20 and the hook receiver 19 of the locking device 14.
(B) shows the operating state of the operating plate 25, the latch 33 and the release button 40 corresponding to this state,
It is a corresponding | compatible operation | movement state figure which shows the state relevant to each other. The following FIG. 7 to FIG. 14 also show corresponding operation state diagrams similar to FIG. Then, the respective states of closing, locking, unlocking, and opening of the door 8 will be described in order with reference to these drawings.
Since the left and right doors 8 and 8 operate in the same manner, one door 8 located on the right side in FIG. 2 will be described. First, FIG. 6 shows a state where the door 8 is closed and locked by the locking device 14. That is, the engagement groove 21 of the hook 20 is engaged with the hook receiver 19, and the second step portion 28 of the operating plate 25 and the latching portion 34 of the latch 33 are in mesh with each other. Since the operating plate 25 and the latch 33 are applied with rotational forces in opposite directions by the release spring 24 and the operating spring 36, respectively, the engagement between them is in a locked state. The rotation is restrained by 33 and is in a locked state. For this reason, the engagement between the hook 20 and the hook receiver 19 is maintained, and the rotation of the rotary shaft 18 to be released is suppressed, and the door 8 is locked.

Next, FIG. 7 shows a state in which the door is unlocked from the closed and locked state of FIG. That is, the release button 40 is operated, the abutting portion 35 of the latch 33 is pressed through the end portion 41, the latch 33 is rotated in the direction of the chain line arrow, and the latching portion 34 of the latch 33 is moved to the operating plate 25. First and second step 2
7. Remove from 28. At the moment when the latch 33 is released, as shown in FIGS. 7 and 8, the rotating shaft 18 is rotated in the direction of the chain arrow by the action force of the release spring 24, and the hook 20 is rotated. The first holding portion 22 of the hook 20 applies a rotational force to the hook receiver 19 while rotating to promote the opening action of the door 8, thereby engaging the hook 20 and the hook receiver 19. To release. Then, as shown in FIG. 9, when the pressing operation of the release button 40 is stopped, the support plate 43 is brought into contact with the mounting plate 15 by the rotational force of the release spring 24 indicated by the chain line arrow, and the latch 33 is moved by the chain line arrow. The locking portion 34 is brought into contact with the vicinity of the first stepped portion 27 by the rotational force of the operation spring 36 shown in FIG. 5 and maintains the contact state, and the locking device 14 maintains the unlocked state. Become. The door 8 can be opened by pulling the door 8 in the direction of the wide arrow.

Next, FIG. 10 shows a state where the door is closed from the unlocked and opened state of FIG. That is, the door 8 is pushed through the handle 9 in the direction of the wide arrow. As the door 8 moves, FIG.
1, when the first holding portion 22 of the hook 20 is brought into contact with the hook receiver 19,
The hook 20 rotates in the direction of the chain arrow, and the engagement groove 21 of the hook 20 and the hook receiver 19
Begins to engage. As the hook 20 rotates, the rotating shaft 18 and the operating plate 25 attached to the rotating shaft 18 start to rotate at the same time, and the contact point between the operating plate 25 and the latch 33 is the first step portion. It moves near 27. When the hook 20 is further engaged deeply into the engagement groove 21 of the hook 20, the hook 20 is further rotated, the operation plate 25 is rotated, and the locking portion 34 of the latch 33 is as shown in FIG. Meshes with the first step 27. When the door 8 is further pushed and the hook 20 is further rotated, as shown in FIG. 13, the operation plate 25 is rotated, and the locking portion 34 is moved from the first step portion 27 to the second step portion 28. Try to move to. When the door 8 is completely closed, as shown in FIG. 14, the engagement groove 21 of the hook 20 and the hook receiver 19 are reliably engaged, and the rotation of the hook 20 is stopped. As a result, the operating plate 25
At this time, the engaging portion 34 of the latch 33 is engaged with the second step portion 28 of the operating plate 25. Since the operating plate 25 and the latch 33 are applied with rotational forces in opposite directions by the release spring 24 and the operating spring 36, respectively, the meshing of each other is locked, and the operating plate 25 is rotated by the latch 33. Suppressed and locked. This makes hook 2
While the engagement between 0 and the hook receiver 19 is maintained, the rotation of the rotary shaft 18 to be released is suppressed, and the door 8 is locked. That is, the locking device 14 is in the same state as in FIG. Note that the mounting position relationship between the hook 20 and the operating plate 25 with respect to the rotating shaft 18 is set in advance so as to have the operation relationship as described above, and is fixed to the set position.

In this way, the storage 3 can be efficiently put in and out of the stored articles from the door 8 of the storage 3 with a simple configuration. Moreover, the door 8 can be locked and unlocked easily and reliably by a one-touch operation. Further, since the hook receiver 19 is engaged and held in the engagement groove 21 of the hook 20, the hook receiver 19 can be securely locked without being detached from vibration, impact, and the like. Further, the locking and unlocking of the locking device 14, that is, the engaging operation between the hook receiver 19 and the hook 20 and the engaging plate 25 and the latch 33 are applied by the acting force of the release spring 24 and the operating spring 36. Therefore, each engaging action is smooth, and each engaging part of the locking device 14 vibrates.
Even when an impact is received, these vibrations and impacts are transmitted to each spring and absorbed by the spring by the buffering action of the spring. Therefore, damage to each part can be reduced, and the durability of the locking device 14 can be further improved.
These effects become more prominent when the storage 3 is applied to a cold car 1, a freezer car, and the like that are susceptible to vibration and shock.

In addition, although the step part 26 of the action | operation plate 25 showed the case where it provided with the 1st step part 27 and the 2nd step part 28 in the Example, this may be 1 step | paragraph or 3 steps | paragraphs etc. As the number of steps increases, the operating force, vibration, impact, etc. due to the locking operation are dispersed and alleviated, the operation becomes smoother, and malfunctions can be prevented and a reliable locking operation can be performed. Further, the release spring 24 and the operation spring 36 are torsion coil springs, and the acting force is directly applied to the operation plate 25 and the latch 33.
A compression spring, a tension spring, or the like may be used, and other forms such as direct application of an acting force to the shaft itself such as the rotary shaft 18 may be used. Further, the storage 3 is not limited to being mounted on a vehicle, and may be applied to a storage in a relatively large refrigerated showcase or the like.

It is a schematic perspective view which shows one Example of the storage of this invention. It is a schematic perspective view of the principal part which shows the state which opened the door of the storage of FIG. It is a schematic front view of the storage of FIG. FIG. 4 is a schematic cross-sectional view taken along line AA in FIG. 3. It is a schematic perspective view of the principal part seen from the arrow B direction of FIG. The door is closed and locked. (A) is a schematic cross-sectional view taken along the line CC in FIG. 3 and showing only the right door side in the figure, (b) FIG. 7 is a schematic partially enlarged cross-sectional view showing the main part on the right door side in FIG. 4 in the state of FIG. The state which shows the state which unlocks a door, (a) is cut along the CC line | wire of FIG. 3 at the time of the state which unlocks a door, and is schematic sectional drawing which shows only the door side of the right side of a figure FIG. 7B is a schematic partially enlarged cross-sectional view showing a main part on the right door side in FIG. 4 taken out in the state of FIG. The state which shows the state which unlocked the door, (a) is a schematic sectional drawing which cuts along the CC line of FIG. 3 at the time of the state which unlocked the door, and shows only the door side of the right side of a figure FIG. 8B is a schematic partially enlarged cross-sectional view showing a main part on the right door side in FIG. 4 in the state of FIG. The state which opens a door is shown, (a) is a schematic sectional drawing which cuts along the CC line of FIG. 3 at the time of the state which opens a door, and shows only the door side of the right side of a figure. FIG. 9B is a schematic partially enlarged cross-sectional view showing a main part on the right door side in FIG. 4 taken out in the state of FIG. The state which closes a door is shown, (a) is a schematic sectional drawing which cut | disconnects along CC line of FIG. 3 at the time of the state which closes a door, and shows only the right door side of a figure. FIG. 10B is a schematic partially enlarged sectional view showing a main part on the right door side in FIG. 4 in the state of FIG. FIG. 10 shows a state in which the door is further closed from FIG. 10, and (a) shows a state in which the door is cut along the line CC in FIG. 3 when the door is further closed from FIG. It is a schematic sectional drawing which shows only the side, (b) is a schematic partial expanded sectional view which takes out and shows the principal part by the side of the right door of FIG. 4 in the state of Fig.11 (a). FIG. 11 shows a state in which the door is further closed from FIG. 11, and (a) is cut along the line CC in FIG. 3 when the door is further closed from FIG. It is a schematic sectional drawing which shows only the side, (b) is a schematic partial expanded sectional view which takes out and shows the principal part by the side of the right door of FIG. 4 in the state of Fig.12 (a). FIG. 3A shows a state immediately before the door is closed and locked, and FIG. 3A shows a state in which the door is cut along the line CC in FIG. 3 in a state immediately before the door is closed and locked. It is a schematic sectional drawing which shows only the side, (b) is a schematic partial expanded sectional view which takes out and shows the principal part by the side of the right door of FIG. 4 in the state of Fig.13 (a). The door is closed and locked. (A) is cut along the line CC in FIG. 3 when the door is closed and locked, and shows only the right door side in the figure. It is a schematic sectional drawing, (b) is a schematic partial expanded sectional view which takes out and shows the principal part by the side of the right door of FIG. 4 in the state of Fig.14 (a).

Explanation of symbols

3 Storage 4 Opening 8 Door
14 Locking device
15 Mounting plate
18 axis of rotation
19 Hook holder
20 hook
24 Release spring
25 Actuating plate
26 steps
32 Operation axis
33 Latch
36 Operation spring
40 Release button

Claims (3)

The storage body,
Provided in the storage body, an opening for taking in and out articles,
A door provided in the opening, for closing or opening the opening;
In a storage provided with a locking device provided on the door and locking the door,
The locking device includes a mounting plate attached to the door;
A rotary shaft that is pivotally attached to the mounting plate and is provided at both ends so as to face a hook receiver attached in the vicinity of the opening, and provided with hooks that engage with the hook receiver.
A release spring provided to always apply a rotational force for releasing the engagement between the hook receiver and the hook to the rotation shaft;
An operating plate attached to the rotating shaft, forming a step portion on one side, and always provided with a rotational force in the same direction as the rotating shaft by the release spring;
An operation shaft disposed on the mounting plate in parallel with the rotation shaft;
The operation shaft is rotatably mounted to face the operation plate so as to form a pair, and a locking portion that engages with the step portion of the operation plate is provided on one side with the operation shaft as a boundary. A latch provided with a contact portion on the other side;
An operation spring provided to always apply a rotational force in a direction opposite to the rotational direction applied to the operation plate by the release spring to the latch,
A release button provided on the door so as to freely advance and retract, and having an end faced to face the abutting portion of the latch;
The door is locked by closing the door and engaging the hook with the hook receiver. At the time of engagement, the hook is brought into contact with the hook receiver and the rotating shaft is rotated. The operation plate is rotated, the step portion of the operation plate and the latching portion of the latch engage with each other, and the rotation of the operation plate is inhibited, so that the hook and the hook receiver are engaged. The rotational force of the rotating shaft to be released is suppressed and the door is locked, and the door is unlocked by operating the release button, and the abutting portion of the latch , Turning the latch, and releasing the latching portion of the latch from the stepped portion of the operating plate to release the engagement between the hook receiver and the hook applied to the rotating shaft. It is characterized by releasing the deterrence and unlocking the lock Built warehouse.     The storage according to claim 1, wherein the step portion of the working plate is formed of a plurality of step portions.     2. The storage according to claim 1, wherein the hook is provided with an engagement groove having one side opened, and the engagement groove is engaged with the hook receiver.

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