JPS5932630B2 - Deadbolt catch for door locks - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a seat for a deadbolt in a door lock, which is provided on a fixed building part facing the door, and is controlled remotely to enable the seat to open the door. By applying force to the door in this state, the door can be opened with the deadbolt in the locked and protruding state, and then by closing the door from the protruding state of the deadbolt, the door can be completely locked. It made it possible.

An embodiment of the present invention will be described below with reference to the drawings.
Reference numeral 1 designates a mounting case, on the front of which a deadbolt entry port 2 for a door lock is formed continuously and widely on one side corresponding to the opening direction of the door, and at the top and bottom thereof, a latch bolt insertion recess is formed. 3,3 is formed.

A rotary locking body 4 is provided in the entrance 2 so as to be rotatable by about 90 degrees by a support shaft 5.

The rotary locking body 4 has a cross-shaped planar shape in which a blocking plate portion 4a and a passive plate portion 4b are arranged orthogonally, and a support shaft 5 at the intersection thereof is a bearing member fixed within the mounting case 1. 6,7
Supported by

An eccentric pin 8 is provided at the lower part of the rotary lock 4, and a tension spring 1 is connected between the pin 8 and the pin 9 of the bearing member 1.
0 is tensioned, so that the pivot lock 4 is fixed by the spring 10 in each pivot position.

A rotation regulating member 11 is integrally provided on the upper part of the rotation locking body 4.

The rotation regulating member 11 has an abutment receiving surface 11a formed on its upper surface, and an abutment protrusion 11b formed on one side of the abutment receiving surface 11a.
On the other side, a door opening permission state holding plate 13 is rotatably provided which is moved in and out of the abutment receiving surface 11a by means of a screw 12.

The door opening permission state holding plate 13 is always biased by a coil spring 14 wound around a screw 12 so as to be positioned on the abutment receiving surface 11a, and is held at a fixed position by a stopper piece 13a.

A solenoid 15 is provided at the upper part of the rotary locking body 4, and its plunger 16 is constantly urged downward by a coil spring 17, and passes through the hole 6a of the bearing member 6, so that its lower end 16a is in an abutment position. It is inserted into the hole 11a1 of the surface 11a.

A rotation prevention rod 18 is provided in the hole 6b of the bearing member 6 so as to be vertically movable, and is provided between it and the fork-shaped driven plate portion 18a at the upper end, and is constantly urged upward by a coil spring 19. Since the plunger 16 passes through the two-pronged driven plate portion 18a and the flange portion 16b of the plunger 16 is located above the two-pronged driven plate portion 18a, the rotation prevention rod 18 is It moves up and down in accordance with the up and down movement of the plunger 16.

A control piece 18b for the microswitch 20 is connected to the bifurcated driven plate portion 18a.

The passive plate portion 4b of the rotary locking body 4 has a door opening position locking pin 2.
1 is supported so as to be movable in the vertical direction, and is biased by a coil spring 22 so that its tip 21a abuts against the partition plate 23, and the tip 21a abuts against the partition plate 23 in the rotating position accompanying the door opening operation. into the lock hole 23a.

A lock release piece 24 is rotatably supported at the end of the passive plate part 4b in the rotation direction, and its closed door sensing part 24a protrudes to the outside, and its driving part 24b is connected to the collar part 21b of the lock pin 21. When the door is closed, the lock release piece 24 drives the lock pin 21 to remove its tip 21a from the lock hole 23a.

25 is a cover for the passive plate portion 4b.

In the above configuration, in a normal case, the rotary locking body 4
is in the state shown in FIGS. 1 and 2, and in this state, the rotation prevention rod 18 is located at the front of the abutting protrusion 11b of the rotation regulating member 11 provided on the rotation locking body 4 in the moving direction. Therefore, the rotary locking body 4 is restrained in the locked position.

In this state, after the door is closed, the deadbolt in the locking mechanism provided on the door is inserted into the opening recess formed between the blocking plate part 4a and the non-opening side plate part 1a of the mounting case 1 by normal cylinder lock operation or the like. Enter G, lock the door, and open the door by retracting the deadbolt.

When opening the door for a visitor without a duplicate key, the solenoid 15 is activated by a remote switch operation, and its plunger 16 is raised against the coil spring 1T. It enters the lower part of the plunger 16 and maintains the raised position of the plunger 16 even after the solenoid 15 is deenergized.

As the plunger 16 rises, the flange 16b releases the restraint of the rotation prevention rod 18 on the bifurcated driven plate portion 18a, so the rotation prevention rod 18 is raised by the coil spring 19 and the rotation restriction member 11 is moved upward. The mating protrusion 11b moves backward from the movement trajectory, and the door opening permission state shown in FIG. 4 appears.

In the door-opening state, when the door is pulled, the deadbolt presses the blocking plate portion 4a, and the support shaft 5 rotates the rotary locking body 4 to the door-opening position shown in FIGS. 5 and 6.

In the door open position, the door open position locking pin 21 provided on the passive plate portion 4b is constantly pressed by the coil spring 22, so that its tip 21a engages in the lock hole 23a of the partition plate 23, and the opening position is The door position is locked to prevent rotation to the locked position.

When the door opened by the above means is closed in the state of the open door position, the deadbolt first contacts the closed door sensing portion 24a of the lock release piece 24 of the passive plate portion 4b, and the lock release piece 24 moves the door to the open position. The door is closed by driving the lock pin 21 so that its tip 21a is removed from the lock hole 23a of the partition plate 23, and the rotary locking body 4 is rotated to the locked position via the passive plate portion 4b.

When the door is closed, the rotation prevention rod 18, which has been lowered together with the plunger 16, climbs over the abutting protrusion 11b via its tapered guide surface 11b1 when it returns to its original position, and reaches the locked position shown in FIG. 2. ensure that

Since the present invention is constructed as described above, the door can be opened while the deadbolt is in the locked and protruding state by causing the rotary locking body to appear in the opening permission state by operating the solenoid by remote control. When the door is open, the rotary lock body locks the door opening position, and when the door is closed, the deadbolt automatically releases the lock and closes the door, so unlike latch bolts, it cannot be retracted when the door is locked. It has the feature that it is possible to reliably open the door while the deadbolt is in the locked state, and the accompanying door closing or locking return operation can be performed reliably.

[Brief explanation of the drawing]

Fig. 1 is a front view of the catch according to the present invention, Fig. 2 is a right side view of the same with the side cover plate removed, Fig. 3 is an exploded perspective view, and Fig. 4 shows a state in which the door is allowed to be opened. A right side view, FIG. 5 is a right side view showing the opening position of the same as above, and FIG. 6 is a front view of same as above. 1...Mounting case, 2...Dead bolt entrance, 4...Rotary locking body, 4a...
・Blocking plate part, 4b...Passive plate part, 15...
...Solenoid, 18...-Rotation prevention rod, 21...
...Door open position lock pin, 24...Lock release piece, 24a...Closed door sensing section.

Claims (1)

[Claims] 1. A deadbolt entrance is formed continuously on one side of the front surface of the mounting case in the opening direction of the door, and the blocking plate and passive plate are arranged approximately perpendicularly at the entrance. The locking body is rotatably supported at the intersection thereof so that the blocking plate portion opens and closes the negative side of the entrance of the deadbolt, and the rotating locking body is placed in the locked position. A rotation prevention rod for restraining is provided, a solenoid is provided for moving the rotation prevention rod to release the restrained state, and a door opening position lock pin is movably provided on the passive plate portion of the rotation locking body. The rotary lock body is biased by a coil spring to engage the lock hole in the mounting case in the door open position, and the lock release piece for the door open position lock pin is rotatably supported in the passive plate part. The closed door sensing portion is then protruded to the outside, and when the closed door sensing portion comes into contact with the door in the open door position, the lock release piece drives the door open position lock pin to the unlocked position. Deadbolt catch for door locks.