JPH05510B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a lock management device for checking the locked states of a plurality of locks.

Configuration of conventional example and its problems When multiple devices each of which requires locking are installed in a room with a door to be locked, and the door needs to be locked after all the devices are locked, the conventional method
Since the locking confirmation depended on the memory of the person locking the door, there was a possibility that a human error could occur, such as misunderstanding that all devices had been locked and locking the door.

Purpose of the Invention The present invention has been made in order to solve the above-mentioned conventional problems. For example, when locking a door, it is possible to mechanically check the previous locking action on the device, thereby reliably preventing human locking mistakes. To provide a locking management device which prevents the door from being locked because the door key cannot be taken out and the door cannot be locked unless the keys of the devices in the room are aligned.

Structure of the Invention In order to achieve the above object, the present invention has a shaft that can be operated in and out, and the shaft can be moved in and out only when a key is inserted, and the key cannot be removed in this retracted state. This system is equipped with multiple locks, and is configured so that the shaft of any one of the locks can be protruded only when the shafts of the remaining locks are retracted.This allows all necessary locking operations inside the room to be performed. The door can be locked after mechanical confirmation, which prevents human locking errors.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1 and 2 show a lock management device according to the present invention, FIG. 1 is a plan view showing a state in which, for example, a key for locking a door has been removed from the lock management device and can be used, and FIG. For example, it is a plan view showing a state in which a key for locking an indoor device is released from the lock management device and can be used.

In the drawing, 1 is the main lock, 2 is the main lock 1
The door key 3 inserted into the main lock 1 is a shaft supported so that it can be operated in and out, and the shaft 3 can be operated in and out only when the door key 2 is inserted into the main lock 1. is possible, and when the shaft 3 is in the retracted state, the door key 2 cannot be removed from the main lock 1.

Numerals 4 and 7 are secondary locks into which the keys 5 and 8 of the devices in the room are inserted, respectively, and the respective shafts 6 and 9 are inserted into the locks.
Similar to the main lock 1, the entry/exit operation is possible only when the keys 5 and 8 are inserted, and in this state, the keys 5 and 8 cannot be removed from the locks 4 and 7.

The secondary locks 4 and 7 are arranged opposite to each other on the left and right sides so that the shafts 6 and 9 protrude in a direction toward each other when the respective shafts 6 and 9 protrude, and at least one of the shafts 6 or 9 If the lock 9 protrudes, the shaft 3 of the main lock 1 collides with the protruding shafts 6 and 9 or both of the subordinate locks 6 and 9, as shown in FIG. 2, and becomes unable to eject.

When a device that requires locking is installed in a room with a door that is locked, the lock management device shown in FIGS. 1 and 2 is installed outside the room, and the door key 2 is inserted and held in the main lock 1. The keys 5, 8 of the device are inserted and held in the slave locks 4, 7, respectively. After opening the door using the door key 2, insert the key 2 into the main lock 1 shown in Fig. 1 and move the shaft 3 in and out as shown in Fig. 2.
By protruding the shafts 6, 9 of the secondary locks 4, 7 as shown in the figure and removing the device keys 5, 8 from the secondary locks 4, 7, the keys 5, 8 can be used for indoor devices. becomes. Next, when locking the door, after locking the device in the room with the keys 5 and 8 of the device, use the key 5,
8 into the secondary locks 4 and 7 shown in Figure 2, the shafts 6 and 9 of the locks 4 and 7 are retracted, and then the shaft 3 of the main lock 1 is projected as shown in Figure 2. Remove key 2 from the door and lock the door.

In this way, unless the shaft 3 of the main lock 1 is made to protrude, the door key 2 cannot be removed from the lock 1, so the door will not be locked without any of the devices in the room being locked.

3 and 4 illustrate devices that are installed indoors, such as stoppers, that require locking, with FIG. 3 showing the device in an unlocked state and FIG. 4 showing a device in a locked state. In the drawings, reference numeral 10 denotes a stopper that can be opened and closed by rotating 90 degrees, and has a rotating knob 11 at the top. FIG. 3 shows the open state, and FIG. 4 shows the closed state. 12 is a lock provided near the stopper 10, 13
is the shaft of the lock 12, into which one of the keys 5 and 8 of the device shown in FIGS. 1 and 2 can be inserted; , 4, and 7, for example, axis 1
When the plug 3 is retracted, the stopper 10 is rotatable, but when the stopper 3 is extended, the shaft 13 and the stopper knob 11 engage, making the stopper 10 unrotatable.

Accordingly, in FIG. 4, the shaft 13 of the lock 12 causes the stopper 10 to remain closed.

Effects of the Invention As explained above, according to the present invention, any one of a plurality of keys cannot be removed from the lock in which it is inserted unless all the remaining keys are present. If the key is used as a door lock and the remaining key is used for a device that requires locking that is installed in the room where the door is installed, the locking of the device inside the room will be mechanically confirmed, so the lock of the device inside the room will be checked. This has the effect of ensuring crime prevention and disaster prevention by preventing artificial locking mistakes such as locking the door without locking the device.

[Brief explanation of drawings]

1 and 2 show an embodiment of the lock management device according to the present invention, FIG. 1 is a plan view of the state in which the key for locking the door has been removed from the lock management device, and FIG. 2 is a plan view of the interior of the room. Plan views of the state in which the key for locking the device has been removed from the lock management device, Fig. 3 a, b and Fig. 4 a,
FIG. 3b illustrates an example of a device that requires locking, such as a stopper, which is installed in a room where the locking management device according to the present invention is used, and FIG. 3a is a plan view of the stopper in an unlocked state;
FIG. 3b is a side view, FIG. 4a is a plan view of the stopper in a locked state, and FIG. 4b is a side view thereof. 1...Main lock, 2...Door key, 3...Key to main lock, 4, 7...Subordinate lock, 5, 8...Indoor device key, 6,9...Subordinate lock axis.

Claims (1)

[Claims] 1. A lock that has a shaft that can be operated in and out, and that is provided with a plurality of locks that allow the shaft to enter and exit only when a key is inserted, and that makes it impossible to remove the key in this retracted state, and any of the above locks. A lock management device characterized in that protrusion of one shaft is possible only when the shafts of the remaining locks are retracted.