JPH0131720Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a storage room door release device that makes it possible to release a locked door of a safe, library, etc. from inside the storage room.

Conventional door locking devices for vaults, etc. move the bolt forward and backward by rotating a handle provided outside the vault, and the movement of the bolt locks the door into the entrance frame of the vault. fix and release against
Furthermore, it was common to have a mechanism that released the connection between the handle and the bolt or prevented the bolt from retreating by locking the bolt while it was advanced. With this type of locking device, if someone is working inside the safe and accidentally closes the door and turns the handle, the door will become locked, and if the door is locked, or if it is not locked. However, it was impossible for the trapped person to pull back the bolt on his own, release the door, and escape. Therefore, a device was considered that would allow escape from the warehouse by providing a handle and an unlocking device on the inside of the door, but the conventional mechanism was complicated and difficult to operate. The functionality was not sufficient. In view of these drawbacks, the present invention
To provide a device which can open a door of a safe, a library, etc. by retracting a bolt from inside the storage regardless of whether it is locked or unlocked.

In order to achieve the above purpose, in this invention,
A main running plate that moves forward and backward in conjunction with an internal handle provided on the inside of the door body is connected to the bolt, and the main running plate is further provided with a shaft hole that opens at the lower end surface of the main running plate. A bar shaft that is movable in the vertical direction is inserted into the shaft hole, and a sub-running board that moves forward and backward in conjunction with an external handle provided on the outside of the door is adjacent to the lower end surface of the main running board. The auxiliary running plate has a shaft hole that communicates with the shaft hole of the main running plate when both the main running plate and the auxiliary running plate are in the forward and backward positions, and the shaft hole has upper and lower holes. Insert a bar shaft that is movable in the direction, and at the locked position, prevent the sub-running plate from retreating, and hold the bar shaft of the sub-running plate so that its upper end surface is aligned with the upper end surface of the sub-running plate, and at the release position. Now, an operating member is placed below the bar shaft of the auxiliary running plate to allow the auxiliary running plate to move backward and to allow the bar shaft of the auxiliary running plate to descend so that the bar shaft of the main running plate enters the shaft hole of the auxiliary running plate. A lock is connected to the actuating member to hold the actuating member in the locking position in the locked state and in the release position in the unlocked state.

The present invention will be described in detail below based on a preferred embodiment shown in the accompanying drawings.

FIG. 1 is a side view showing the device of the present invention in a locked state, and FIG. 2 is a partially vertical front view of the device. In the figure, 11 is a door body of the vault, and 12 is a side frame of the door body 11. Reference numeral 21 denotes a bolt, which is inserted through a bolt support member 22 fixed to the door body 11 and a guide hole in the side frame 12, and is guided so as to move forward and backward. (In this explanation, moving to the right in the drawings from FIG. 2 onwards will be referred to as forward movement, and moving to the left will be referred to as backward movement.)
31 is a main running plate with an L-shaped side surface, and a connecting member 2
3 to the bolt 21, and further connected to the crank 51 by
It is connected to an internal handle 53 provided on the inside of the door body 11 via. Long holes 32, 32 extending horizontally are bored in the vertical part 31a of the main running plate 31, and guide shafts 13, 13 fixed to the door body 11 are inserted into the long holes 32, 32, The plate 31 is supported so as to be freely forward and backward. The crank 51 is connected to the internal handle 53 via the crankshaft.
A long hole 5 connected to the crank 51 and further bored in the crank 51
2 is loosely fitted into a pin 33 implanted in the main running plate 31. This crank mechanism transmits the rotational motion of the internal handle 53 to the main running plate 31 as forward and backward motion.

Reference numeral 41 denotes a sub-running plate with an inverted L-shaped side surface, which is arranged in parallel with its horizontal portion 41b adjacent to the horizontal portion 31b of the main running plate 31, and is further connected to the door body 1 via a crank 61.
It is connected to an outside handle 63 provided on the outside of the refrigerator. A long hole 42 extending in the horizontal direction is bored in the vertical portion 41a of the sub-running plate 41, and a guide shaft 14 fixed to the door body 11 is inserted through this elongated hole 42 to move the sub-running plate 41 forward and forward. Support freely retreat. The crank 61 is connected to an outside handle 63 via a crankshaft, and a long hole 62 bored in the crank 61 is connected to a pin 43 implanted in the sub-running plate 41.
It is loosely fitted. This crank mechanism transmits the rotational movement of the outside handle 63 to the sub-running plate 41 as forward and backward movement. The direction of movement of the sub running plate 41 and the direction of movement of the main running plate 31 are parallel.

An auxiliary member 34 is fixed to the rear upper surface of the horizontal portion 31b of the main running plate 31, and a shaft hole 35 is bored vertically through the horizontal portion 31b and the auxiliary member 34. Further, vertically above the shaft hole 35, a bearing member 36 having a hole having the same diameter and the same axis as the shaft hole 35 projects from the vertical portion 31a. A bar shaft 37 is inserted into the shaft hole 35 and the hole of the bearing member 36 so as to be able to move up and down, a flange 38 is fixed to the bar shaft 37, and a coil spring 39 is installed between the flange 38 and the bearing member 36. The bar shaft 37 is always urged downward by winding it.

An auxiliary member 44 is fixed to the rear lower end surface of the horizontal portion 41b of the sub-running plate 41, and a shaft hole 45 is bored vertically through the horizontal portion 41b and the auxiliary member 44. This shaft hole 45 has approximately the same diameter or a slightly larger diameter than the shaft hole 35, and is aligned with and communicates with the shaft hole 35 when both the main running plate 31 and the sub-running plate 41 are in the forward position. Below the shaft hole 45, a bearing member 46 having a hole of the same diameter and coaxial as the shaft hole 45 is located in the vertical portion 41.
It protrudes from a. A bar shaft 47 having approximately the same diameter as the bar shaft 37 is inserted into these shaft holes 45 and the bearing member 46 so as to be able to move up and down, and this bar shaft 47 is further provided with a flange to prevent the bar shaft 47 from falling out of the shaft hole 45. 48 is fixed.

71 is a main lock provided with an operating shaft 72, and the operating shaft 72 protrudes when the main lock 71 is locked, and retracts when the main lock 71 is unlocked. Reference numeral 73 denotes an actuation plate having a shape obtained by cutting out both acute angles of a right-angled isosceles triangle, and is rotatably supported on a shaft fixed to the door body 11. A locking member 75 is fixed to the actuation plate 73 along one side 73a, and a pin 74 is implanted at the tip of the other side 73b. When the main lock 71 is in the locked state, the actuating shaft 72 protrudes and presses the pin 74 to hold the actuating plate 73 in a position where the side 73a of the actuating plate 73 is parallel to the advancing/retreating direction of the sub-running plate 41. This state is the locking position of the actuating plate 73, and at this time the locking member 75 engages with the locking piece 41c formed at the rear lower end of the sub-running plate 41 to prevent the sub-running plate 41 from retreating. Further, the upper surface of the locking member 75 comes into contact with the lower end surface of the bar shaft 47 to hold the upper end surface of the bar shaft 47 on the same plane as the horizontal portion 41b. The second example shows this state.
It is a diagram. In this state, the upper end surface of the bar shaft 47 is in contact with the lower end surface of the bar shaft 37, so that the lower end surface of the bar shaft 37 is located on the same plane as the upper surface of the horizontal portion 41b of the sub-running plate 41.

When the main lock 71 is unlocked, the operating shaft 72 retracts and the operating plate 73 rotates counterclockwise. In this state, the engagement between the locking member 75 and the locking piece 41c is released, the bar shaft 47 descends, and the bar shaft 37 enters the shaft hole 45. This state is the release position of the actuating plate 73, the details of which are shown in FIG.

Next, a method of operating the device of the present invention having the above configuration will be described in detail.

First, the normal door opening operation from outside the refrigerator will be explained in detail.
In the locked state shown in FIG.
Even if an attempt is made to move the bolt 21 backward by rotating the lock 21, since the actuating plate 73 is in the locking position, the locking member 75 and the locking piece 41c of the sub-running plate 41 engage with each other, causing the sub-running plate 41 to move backward. Therefore, the outside handle 63 cannot be rotated. Naturally, the main lock 71 must be unlocked in order to open the door. When the main lock 71 is unlocked, the actuating shaft 72 is retracted, the actuating plate 73 is rotated counterclockwise to the release position, and the engagement between the locking member 75 and the locking piece 41c is released. At the same time, the bar shaft 47 descends and the bar shaft 37 enters the shaft hole 45. Locking member 75 and locking piece 4
1c, it becomes possible to rotate the outside handle 63 and move the sub-running plate 41 backward, and as the bar shaft 37 enters the shaft hole 45, the main The running plate 31 and the auxiliary running plate 41 are connected and integrated, and as the auxiliary running plate 41 retreats, the main running plate 31 retreats, making it possible to move the bolt 21 backward. Therefore, when the outside handle 63 is rotated in the state shown in FIG. 3, the main running plate 31 is integrated with the auxiliary running plate 41 and moves backward, and the bolt 21 connected to the main running plate 31 moves back. (See Figure 4) Door body 1
1 is released and the door can be opened. At this time, the internal handle 53 also rotates as the external handle 63 rotates. The door closing and locking operations are performed in the reverse order of the above-mentioned operations.

Next, the operation to open the door from inside the refrigerator in an emergency will be explained in detail.

When the main lock 71 is in the locked state, the upper end surface of the bolt 47 is located on the same plane as the upper surface of the horizontal portion 41b of the sub-running plate 41 as shown in FIG. The lower end surface can freely slide on the upper end surface of the bar shaft 47 and the upper surface of the horizontal portion 41b. That is, since there is nothing to prevent the main running plate 31 from moving backward, when the internal handle 53 is rotated, the main running plate 31 moves backward, and as the main running plate 31 moves backward, the bolt 21 moves backward. This state is shown in FIG. Since the door body 11 is released when the bolt 21 is moved back, the door can be opened.

Next, when the main lock 71 is in the unlocked state and the bolt 21 is moving forward, the operating plate 73 is in the release position as shown in FIG. The engagement with the piece 41c is released, and the bar shaft 37
enters into the shaft hole 45 of the sub running plate 41, and the main running plate 31 and the sub running plate 41 are integrally connected. Therefore, when the internal handle 53 is rotated,
As the main running plate 31 moves back, the bolt 21 moves back to the state shown in FIG. 4, allowing the door to be opened. However, at the same time, the sub-running plate 41 is integrated with the main running plate 31 and retreats, so the outside handle 63 also rotates.

As described above, according to the device of the present invention, the door body 11
Whether the refrigerator is completely fixed and locked, or only locked, a person trapped inside the refrigerator can escape by simply turning the interior handle 53 to open the door 11. can do.

By the way, the actuating shaft 72 and the actuating plate 73 in this embodiment are actuating members, and the lock in the present invention does not include any member that acts on the bar shaft 47 or the running plate 41.

Further, in this embodiment, a regular lock is used as the lock, but various locks such as a code lock or a cylinder lock may also be used. In the case of a cylinder lock, it is also possible to cause the rod to act directly on the bar shaft and locking piece without using an actuating plate.

As mentioned above, the device of this invention not only has excellent operability, such as being able to easily open the door from inside the warehouse, but also allows the use of various types of locks, and is suitable not only for doors of vaults and archives, but also for one-way doors. It is highly versatile and can be used as a partition door, and has many practical benefits.

[Brief explanation of the drawing]

Fig. 1 is a side view of one embodiment of the device of the present invention;
The figure is a partially longitudinal front view showing the same embodiment in a locked state, Figure 3 is a partially longitudinal front view showing the same embodiment in an unlocked state, and Fig. 4 is a partially longitudinal front view showing the same embodiment in an unlocked state. Fig. 5 is a partially longitudinal front view showing a state in which the internal handle of the refrigerator is rotated to retract the bolt from the state shown in Fig. 2 of the same embodiment. 11... Door body, 21... Bolt, 31... Main running board, 35... Shaft hole, 37... Bar shaft, 41... Sub-running plate, 45... Shaft hole, 47... Bar shaft, 53 ...Inner cabinet handle, 63...Outer cabinet handle, 71...Main lock, 73...Operation plate.

Claims (1)

[Scope of claim for utility model registration] Inside handle 5 provided on the inside of the door body 11
A main running plate 31 that moves forward and backward in conjunction with the main running plate 3 is connected to the bolt 21, and a shaft hole 35 that opens at the lower end surface of the main running plate 31 is bored in the main running plate 31. A vertically movable bar shaft 37 is inserted, and the external handle 6 provided on the outside of the door body 11 is inserted.
A sub-running plate 41 that moves forward and backward in conjunction with the moving plate 3 is arranged adjacent to the lower end surface of the main running plate 31. Main running plate 3 when in the reverse position
A shaft hole 45 that communicates with the shaft hole 35 of No. 1 is bored, and a bar shaft 47 that is movable in the vertical direction is inserted into the shaft hole 45. At the locking position, the bar shaft 47 is prevented from retreating and the bar shaft 47 is movable in the vertical direction. is held so that its upper end surface is aligned with the upper end surface of the sub-running plate 41, and in the released position, the sub-running plate 4
An operating member is provided below the bar shaft 47 to allow the bar shaft 47 to move backward and to allow the bar shaft 47 to move downward so that the bar shaft 37 enters the shaft hole 45, and in the locked state, the operating member is held at the locking position. . A storage room door release device, characterized in that a lock is connected to the operating member to hold the operating member in the release position in the unlocked state.