JPS6140869Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a release device for a door of a vault or the like equipped with a tightening device from inside the vault.

In conventional doors for vaults, etc., when it is necessary to ensure complete contact between the door and the entrance frame of the vault, a tightening device is attached to the door. Some doors with a locking device have two handles that operate the bolt and the locking device independently, and others have a single handle that operates both the lock and the locking device. There is also one made by the organization. In general, it is undeniable that the mechanism is somewhat complicated due to its ease of operation, but a mechanism in which the bolt and tightening device can be operated by a single handle is more important. However, with either mechanism, once the door is closed and the locking device or bolt is activated, it is impossible to release the locking device or bolt from inside the refrigerator, even if the door is not locked. Ta. Therefore, if someone working inside the vault accidentally closes the door or a burglar intentionally closes the door and activates the locking device or bolt, the person trapped inside the vault will be able to close the door. It was impossible for him to free himself and escape.
Therefore, it may be possible to install a release device on the inside of the door so that the tightening device and bolt can be released from inside the refrigerator, but in the case of a door with a tightening device, not only the mechanism becomes complicated but also the security is poor. Conventionally, it has been considered impossible to provide a release device from the inside of the refrigerator to this type of door with a tightening device because the door may be damaged.

The present invention has been made in view of the above-mentioned disadvantages, and it overcomes the above-mentioned disadvantages, and furthermore, it can be used for doors without a tightening device as well as for doors with a tightening device having one or two handles. The purpose is to provide a release device.

In order to achieve the above object, the present invention includes an external handle attached to the outside of the door through a handle shaft, a tightening device and a bar running plate that are operated by rotation of the handle shaft. , a door with a tightening device comprising a bolt that operates integrally with the bolt running plate, and a locking member that allows or prevents the retreating of the bolt running plate in conjunction with the locking device; A handle shaft that can rotate and move in the axial direction by a predetermined amount is attached to the inside of the refrigerator, and an internal handle is fixed to the handle shaft, and the rotation of the handle shaft inside the refrigerator is transmitted to the handle shaft outside the refrigerator. and an interlocking member that cooperates with the locking plate to prevent the barter plate from retreating, and a blocking position that cooperates with the locking plate to release the locking plate to allow the barter plate to move back. A locking member that can be moved to the allowable position is provided on the bar running plate, and the locking member is biased toward the blocking position so that the locking member is always located in the blocking position, and An actuation mechanism is provided that operates the locking member to the blocking position or the releasing position in conjunction with the axial movement.

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

Fig. 1 is a partially cutaway schematic plan view showing an embodiment of the device of the present invention for all storage compartment doors with a mechanism for operating the tightening device and bolt with a single handle, and Fig. 2 is a schematic plan view of the same embodiment. FIG. 3 is a partially cutaway schematic side view of the same embodiment. However, since the structure of the vault door, the mechanism of the tightening device, and the locking device are well known, their details are omitted in these figures.

In the figure, 10 is the door body of the vault, 11 is an outside handle attached to the handle shaft 12 of the door body 10 that protrudes to the outside of the vault, and the handle shaft 12 has a tightening device 14 and a bar running plate 15. Interlockingly, the rotation of the external handle 11 causes the tightening device 14 to be tightened or released, and the bolt 16 integrally connected to the bolt running plate 15 to be extended or retracted. The bar running plate 15 has a U-shaped side surface in order to maintain appropriate strength and reduce weight. Also,
A sprocket 13 is fixed to the tip of the handle shaft 12, the function of which will be described later.

Reference numeral 21 denotes an interior handle attached to a handle shaft 22 that protrudes toward the inside of the door body 10. 2
3 is a support plate fixed inside the door body 10, a bearing member 24 is fixed to this support plate 23, and a handle shaft 22 is inserted through this bearing member 24 so as to be freely rotatable and movable in the axial direction. . A release ring 31, a transmission member 32, and a sprocket 33 are fitted into the handle shaft 22 in this order from the internal handle 21 side, and a retaining plate 34 is fixed to the end of the handle shaft 22 with a bearing member 24 in between. The release ring 31 has a U-shape in longitudinal section, is fitted between a stepped portion formed on the handle shaft 22 and the internal handle 21, and integrally follows the movement of the internal handle 21 in the axial direction. The transmission member 32 has a groove 32a on the release ring 31 side that crosses the axis and extends in the axial direction, and has a flange 32b on the sprocket 33 side end. Since the pin 25 installed in the handle shaft 22 in the diametrical direction is fitted into the groove 32a so as to be freely movable in the axial direction, the transmission member 32 is restrained from the rotational movement of the handle shaft 22 and rotates integrally. but is not constrained to axial movement. Further, a compression coil spring 35 is interposed between the release ring 31 and the transmission member 32, and the release ring 31 and the transmission member 32 are always urged in a direction to separate from each other.
Always keep it in the most prominent position. The sprocket 33 is fitted into the handle shaft 22 so as to be rotatable and movable in the axial direction, but is screwed to the transmission member 32, so that it operates integrally with the transmission member 32. Further, the sprocket 33 is connected to the aforementioned sprocket 13 by a chain 36. Therefore, when the internal handle 21 is rotated, the external handle 11 is also rotated. That is, the tightening device 14 and the bolt 16 can also be operated by the internal handle 21. Under normal conditions, the retaining plate 34 comes into contact with the end surface of the bearing member 24, and the handle shaft 2
2 is prevented from falling off from the bearing member 24 by the action of the coil spring 35. Furthermore, when the internal handle 21 is pressed toward the door 10, the handle shaft 22 is allowed to enter the door 10.

Reference numeral 41 denotes a lever mechanism, which includes a connecting rod 42 that is pivotally supported by support members 45, 45 that are fixed to the support plate 23 and extends parallel to the bolt running plate 15, and a crank plate that is fixed to one end of this connecting rod 42. 43, and a pin 44 that is fixed to the crank plate 43 and abuts on the distal end surface of the release ring 31. The other end of the connecting rod 42 is bent at a substantially right angle to form a hook portion 42a.

Reference numeral 51 denotes a release shaft that is inserted into a bearing 54 fixed to the bar running plate 15 and a shaft hole bored in the upper horizontal wall 15a of the bar running plate 15 so as to be vertically movable. A sliding plate 52 extending in the forward direction of the bolt running plate 15 is fixed to the upper end of the release shaft 51, and a locking member 5 is fixed to the lower end.
3 is fixed. The lowest position of the locking member 53 shown in FIG. 2 is a blocking position where it cooperates with a locking plate 61, which will be described later, to prevent the barrow plate 15 from retreating. Furthermore, a connecting rod 42 is attached to the lower edge of the sliding plate 52.
The hook portion 42a is in contact with the connecting rod 42, and the sliding plate 52, that is, the locking member 53 can be raised by rotating the connecting rod 42. Since the release shaft 51 is mounted in the vertical direction, the locking member 53 will be lowered to the blocking position by its own weight, but in this embodiment, the flange 55 is fitted onto the release shaft 51 below the upper horizontal wall 15a. , this flange 55 and the upper vertical wall 1
A compression coil spring 56 is interposed between the release shaft 51 and the release shaft 5a to constantly bias the release shaft 51 downward.
61 is a locking plate that interlocks a locking device (not shown). The locking plate 61 is held in the position shown in FIG. 2 in the locked state, and engages with the locking member 53 in the blocking position to prevent the barrow plate 15 from retreating,
In the unlocked state, the second
Since it is held in the position shown by the broken line in the figure, the engagement with the locking member 53 in the blocking position is released, allowing the bolt running plate 15 to move backward. However, even when the lock plate 61 is in the locked position, the barter plate 15 is allowed to retreat when the lock member 53 is in the uppermost position shown by the chain line in FIG. 2, that is, in the release position.

The operation and operating method of the release device of the present invention constructed as described above will be described in detail.

First, unlocking and release operations from outside the storage room during normal times will be explained. In the locked state, the locking member 53 on the bolt running plate 15 and the locking plate 61 are engaged, so the bolt 16 cannot be released by retracting the bolt running board 15. When the locking device is unlocked, the locking plate 61 rotates in the direction of arrow e to the position indicated by the broken line in FIG. Allow. If the outside handle 11 is rotated in this state, the tightening device 14 will be released, and the bolt running plate 15 will move back and lock the bolt 16.
is retracted and the door is released. At this time, since the internal handle 21 is connected to the external handle 11, it rotates in conjunction with the rotation of the external handle 11. The locking operation is performed in the reverse order of the above operation.

Next, the operation for releasing the inside of the refrigerator in an emergency will be explained. In order to release the door from inside the warehouse in the illustrated locked state, the interior handle 21 is first pressed against the door body 10. When the internal handle 21 moves in the direction of arrow a, the release ring 31 presses the pin 44 and rotates the crank plate 43 in the direction of arrow b, causing the hook portion 42a of the connecting rod 42 fixed to the crank plate 43 to rotate.
rotates in the direction of arrow c. When the hook portion 42a rotates in the direction of arrow c, the sliding plate 52 in contact with the hook portion 42a is lifted in the direction of arrow d, and the locking member 53 rises to the release position. When the locking member 53 rises, the engagement between the locking member 53 and the locking plate 61 is released, allowing the barrow plate 15 to move backward.
This state is equivalent to the unlocked state in normal times described above. Further, when the internal handle 21 is rotated while being pressed, the external handle 11 is also rotated, and the tightening device 14 is released and the bar running plate 15 is rotated.
moves back, the bolt 16 retracts, and the door is released.
If the door is not locked, the door can be opened simply by rotating the internal handle 21 without pressing the internal handle 21.

In the above embodiment, the rotational movement and axial movement of the internal handle 21 are transmitted and guided by a mechanism consisting of a transmission member 32 and a pin 25, but a meshing clutch may also be used for this mechanism. It is also possible to connect the handle shaft 22 and the handle shaft 12 using gears. Also,
The drive mechanism for the locking member 53 may also be in various forms other than the lever mechanism of this embodiment.

As mentioned above, the release device of the present invention takes advantage of the tendency of people trapped in a storage room to press their bodies against the door due to fear and anxiety, and is a mechanism that utilizes the operation of pressing the inside handle against the door. Furthermore, simply by rotating the internal handle, the door can be reliably released, and the door can be opened to escape.

If such a device of the present invention is used for the door of a safe or storage room, even if the door is accidentally or intentionally closed and locked even though there is someone working inside, it will not be possible to access the door from inside the storage room. You can easily open the door and escape, so you can concentrate on your work without worrying about being trapped inside the warehouse.

[Brief explanation of drawings]

Fig. 1 is a partially cutaway schematic plan view showing an embodiment of the device of the present invention for all storage compartment doors with a mechanism for operating the tightening device and bolt with a single handle, and Fig. 2 is a schematic plan view of the same embodiment. FIG. 3 is a partially cutaway schematic side view of the same embodiment. 10... Door body, 11... Outside handle, 12...
...Handle shaft, 13...Sprocket, 14...
Tightening device, 15... bar running plate, 16... bolt, 21
...Inner handle, 22...Handle shaft, 31...
...Release ring, 32...Transmission member, 33...Sprocket, 36...Chain, 41...Lever mechanism, 5
3... Locking member, 61... Locking plate.

Claims (1)

[Claims for Utility Model Registration] (1) An external handle 11 attached to the outside of the door body 10 via a handle shaft 12, a tightening device 14 operated by rotation of the handle shaft 12, and A bolt running plate 15, a bolt 16 that operates integrally with the bolt running plate 15, and a bolt running plate 1 that operates in conjunction with the locking device.
A locking plate 61 that allows or prevents the retreat of 5.
In the door with a tightening device, a handle shaft 22 capable of rotation and axial movement by a predetermined amount is mounted on the inside of the door body 10, and an internal handle 21 is fixed to the handle shaft 22, Interlocking members 13, 33, and 36 are provided to transmit the rotation of the handle shaft 22 to the handle shaft 12, and a blocking position where the locking plate 61 is engaged to prevent the barring plate 15 from retreating; A locking member 53 is provided on the bolt running plate 15 so that the locking member 53 can be moved to a permissible position in which the engagement with the bolt is released and the bolt running plate 15 is allowed to move backward, and the locking member 53 is always located in the blocking position. An operating mechanism 31, 41 is provided which biases the locking member 53 toward the blocking position and operates the locking member 53 to the blocking position or the releasing position in conjunction with the axial movement of the internal handle 21. A door release device with a tightening device, characterized in that: (2) The locking member 53 is fixed to a shaft 51 that is vertically movably mounted on the bar running plate 15, and the lowest position of the locking member 53 is the blocking position. A release device for a door with a tightening device as described in paragraph (1). (3) The operating mechanisms 31 and 41 are connected to the handle shaft 22
an annular transmission member 31 that is fitted into the housing and moves integrally with the axial movement of the internal handle 21; and a lever mechanism that is actuated by the axial movement of the transmission member 31 to move the locking member 53 up and down. 41. A door release device with a tightening device as set forth in claim (2) of the utility model registration. (4) The interlocking members 13, 33, 36 are attached to a sprocket 13 fixed to the end of the handle shaft 12.
and a sprocket 33 that is fitted onto the handle shaft 22 and rotates integrally with the handle shaft 22 while being restricted to the rotational movement of the handle shaft 22, but is not restricted to the axial movement, and the sprocket 33 and the sprocket 13 are A door release device with a tightening device according to claim (1) of the utility model registration, which is a suspended chain 36.