JPH01256675A - Lock device for door - Google Patents

Abstract

PURPOSE:To ensure safety at ordinary times while surely and rapidly release a lock from the outside of a room at the time of emergency by providing an operating lever integrated with a knob, a solenoid which is operable from the outside of a room and a rotary member supported by a dead bolt. CONSTITUTION:A solenoid 27, an operating lever 36, a rotary member 15, etc., are provided on a lock device having a lock means consisting of a dead bolt 6 and, e.g., a cylinder lock 8. The solenoid 27 and the rotary member 15 are linked together via a cam member 28, a block 48, a trigger bolt 21, a pole 19, and a lever 18 so that the rotary member 15 is rotated to a retracted position where it is not brought into contact with, or a position where it is engaged with the operating lever 36 in accordance with the no-operating time or operating time of the solenoid 27. At the time of an emergency, when the bolt 6 is in a lock position, the member 15 is moved to the operating position and by rotating a knob, the lock can be released via the lever 36 by a specified person.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is a locking device for a door that is supported by a structure such as a house so as to be openable and closable, and which locks a door into a locking hole on the structure side and The deadbolt is slidably supported on the door side between the locking hole and the unlocked position, and a locking means for operating the deadbolt between the locking position and the unlocking position by operating a key plate. This invention relates to a locking device for a door.

Locking devices of the above-mentioned type, which are used in general residences, hotels, housing complexes, etc., have been well known.

From the viewpoint of safety such as theft prevention, such a locking device should be configured so that it cannot be unlocked from outside. However, on the other hand, when the door is closed and its locking device is locked, there may be times when it is necessary to urgently check the situation inside the door from outside. A typical example is when you want to check the safety of an elderly person in the room. In such a case, it is advantageous to configure the door so that only a specific person can unlock the door from outside.

■ The object of the present invention is to provide a door lock of the type described at the beginning that can simultaneously satisfy the contradictory requirements of ensuring safety in normal conditions and releasing the lock from outside in an emergency. The purpose is to provide equipment.

In order to achieve the above-mentioned object, the present invention includes an operating lever connected to a door knob and rotated by the rotation of the knob, a solenoid provided on the structure side and operated from outside, and the deadlock lever. and a rotating member rotatably supported by a bolt, and when the solenoid is not activated, the rotating member is in a retracted position where it does not come into contact with the actuating lever, and the rotating member is rotated by the activation of the solenoid. The pivot member and the solenoid are coupled such that the member pivots to an actuated position in which the member can engage the actuating lever, the deadbolt is in a locked position, and actuation of the solenoid brings the pivot member to the actuated position. the actuating lever engages the pivot member to bring the deadbolt into the unlocked position when the knob is rotated.

five-piece Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a door 2 supported by a structure 1 such as a house so as to be openable and closable in the direction of arrow A. When opening the door 2, a knob 3 rotatably supported by the door 2 is turned to rotate the door 2. When locking the door 2, a key plate (not shown) is inserted into a key hole 4 of a cylinder lock, which will be described later, to lock the locking device according to the present invention.

FIG. 2 is a front view showing the lock device built into the door 2, and FIG. 3 is a perspective view thereof.

2 and 3, a base plate 5 fixed to the door 2 supports a deadbolt 6 that is slidable in the left and right directions in the figures. That is, the deadbolt 6 is slidably fitted into a guide groove 4o formed in a rising flange portion 5a of the base plate 5, and a guide protruding from the base plate 5 is fitted into a long hole 41 formed in the deadbolt 6. The pins 42 are slidably fitted into each other. The deadbolt 6 is in a locking position as shown by the solid line in FIG. 2 in the locking hole 7 (see also FIG. 4) of a metal fitting 45 fixed to the structure 1 side, for example, a pillar of a house. As shown by the chain line in FIG. 2, it can slide between the locking hole 7 and the unlocked position.

A locking means consisting of, for example, a cylinder lock 8 is provided in the base plate portion above the deadbolt 6. 9 is a hub plate that rotates together with the rotor of this cylinder lock 8.

To lock the door 2, insert the key plate into the key hole 4 of the cylinder lock 8 as described above, and turn the key plate to move the pressure arm 10 of the hub plate 9 from the position shown by the chain line in FIG. Rotate clockwise to the position shown by the solid line. At this time, the pressure arm 10 of the hub plate 9 presses the pressure contact surface 11 of the dead bolt 6 to the left in FIG. into the locking hole 7.

This allows the door 2 to be opened even if the aforementioned knob 3 is turned and the latch (not shown) linked thereto is removed from the latch hole 13 (FIG. 4) formed in the metal fitting 45 on the structure 1 side. There's nothing to do.

To unlock the door 2, similarly insert the key plate into the key hole 4, turn it in the opposite direction to the above-mentioned direction, and rotate the hub blade 9 counterclockwise in FIG. 2. As a result, the pressure arm 10 of the hub plate 9 presses the other pressure contact surface 12 of the dead bolt 6, causing the bolt 6 to slide to the right in FIG. As a result, the deadbolt 6 is brought to the unlocked position, and its tip 6a is removed from the locking hole 7. If you turn the knob 3 in this state, the latch that operates in conjunction with this will move into the latch hole 13.
can be removed and door 2 can be opened.

As described above, the door 2 can be locked or unlocked by the locking device, and the safety of the room inside the door can be ensured.

On the other hand, as described above, there are times when it is desired to unlock the door 2 from the outside and urgently check the inside of the room. In order to meet such requirements, the lock device according to the present invention is configured as follows.

As shown in FIGS. 2 and 3, a rotating member 15 is rotatably supported on the deadbolt 6 via a pivot pin 14.
The engagement surface 16 of this rotating member 15 has a base plate 5.
The tip of a lever 18 rotatably supported via a pin 17 is engaged with the lever 18 . In addition to the lever 18, the pin 17 also has
A pole 19 is rotatably supported. The lever 18 engages with a protrusion 34 provided on the pole 19.

A torsion coil spring 49 is wound around a pin 5o protruding from the deadbolt 6, and each end thereof is pressed against a locking pin 51, 52 protruding from the rotating member 15 and the deadbolt 6, respectively. The rotating member 15 is provided with a counterclockwise rotating behavior in FIG.

On the other hand, the support piece 20 protruding from the base plate 5 has
A support shaft 22 fixed to the trigger bolt 21 is supported so as to be slidable in the left-right direction in FIG. is biased to the left.

The trigger bolt 21 is attached to the flange portion 5 of the base plate 5.
It fits into a guide groove 43 formed in a so as to be slidable in the left and right direction.

The structure 1 also includes a solenoid 27 that is operated from outside.
is fixedly arranged, and a cam member 28 that operates in the vertical direction is connected to the plunger.

The cam member 28 has a U-shaped cross section as shown in FIG. 5, and has notches 29 formed on both side walls thereof. The cam member 28 also has a guide hole 46 (
(Fig. 2) is arranged so that it can be operated in the vertical direction without interfering with the aforementioned metal fitting 45 and dead bolt 6.

Further, at a position facing the tip 21a of the trigger bolt 21, a block 48 is provided in which the receiver of the metal fitting 45 is disposed in the groove 47 and is slidable in the left-right direction in FIG. As shown in FIG. 5, a pair of pin-shaped protrusions 30 are protruded from this block 48 and abut against the surface of the notch 29 of the cam member 28.

The block 48 is held so as not to move to the right beyond the position shown by the solid line in FIG. 2 (the state shown in FIG. 4), and the receiver is prevented from being pulled out from the groove 47.

During normal use of the door, ie, when not in an emergency, the solenoid 27 is turned off. When the door 2 is closed in this state, the protrusion 30 of the block 48 is located at a portion other than the bottom of the notch 29 formed in the cam member 28, as shown by the solid line in FIG. The tip 21a of the trigger bolt 21 located at the position indicated by the solid line in FIG. 2 is pressed against the block 48 by the action of the spring 23.

When the door 2 is opened in the above-mentioned state, the trigger bolt 21 separates from the block 48, so that the bolt 21 slides to the left in FIG. 2 under the action of the spring 23. Next, when the door 2 is closed, the inclined surface 53 (Fig. 3) formed at the tip of the trigger bolt 21 hits the structure 1, and the trigger bolt 21 is automatically retracted to the position shown in Fig. 2. ,
It is then held in this position by block 48.

In this way, the trigger bolt 21 does not interfere with the opening/closing operation of the door.

Further, as described above, when the solenoid 27 is in the inactive state (off state) and the door is in the closed state, the second
As shown in the figure, the tip of the pole 19 is attached to the trigger bolt 21.
It comes into contact with a recessed portion 33a of the cam surface formed in the cam surface. At this time, the lever 18 comes into contact with the rotating member 15 which is given a rotational habit by the spring 49 and kept stationary by the pin 52, and this lever 18 comes into contact with the protrusion 34 of the pole 19.
These members 15, 18, 19 are held stationary in the position shown in solid lines in FIG. The position of the rotating member 15 at this time will be referred to as a retracted position.

An operating lever 36 shown in FIGS. 2 and 3 is integrally connected to the aforementioned knob 3 (FIG. 1), and when the knob 3 is rotated, this lever 36 also rotates.

At this time, even if the operating lever 36 rotates clockwise in FIG. 2, the lever 36 will not come into contact with the rotating member 15 when the rotating member 15 occupies the above-mentioned retracted position. . Therefore, the force of the actuating lever 36 is applied to the deadbolt 6.
The bolt 6 remains in the locked or unlocked position as described above.

When the deadbolt 6 is in the locked position and you want to check the inside of the room with the door 2 locked, use a switch (
(not shown) to activate the solenoid 27. This causes the plunger of the solenoid 27 to move to the cam member 28.
is pushed upward in Figure 2. This allows notch 2
9 rises as shown by the chain line in FIG.
The trigger bolt 21 is pushed to the left by the
Block 48 is also pushed to the left as shown in phantom in FIG. At this time, the pin-shaped protrusion 30 comes into sliding contact with the surface of the notch 29, and the operation is performed smoothly. When the trigger bolt 21 protrudes to the left in this way as shown by the chain line in FIG.
9 and rotate the pole 19 counterclockwise around the pin 17. As a result, the lever 18 is pressed by the protrusion 34 of the pawl 19, and the lever 18 also rotates counterclockwise as shown by the chain line.

Therefore, the rotating member 15, which had been in the retracted position, is pushed by the lever 18 and rotates as shown by the chain line. The position of the rotating member 15 at this time is the operating position. Rotating member 15
When the lever 36 is brought to this operating position, the knob 3 (FIG. 1) is turned to rotate the actuating lever 36 clockwise in FIG.

The lever 36 engages the pivot member 15 and forces it to the right as shown by the dashed line in FIG. Therefore, the deadbolt 6, which had been in the locked position, is pushed to the right in FIG. 2 and slides to the unlocked position shown by the chain line, and at this time, the hub plate 9 is also pushed to the chain line position and rotates. do. Therefore, the tip of the deadbolt 6 comes off the locking hole 7, the door is unlocked, and the door 2 can be opened as is. In this way, even when the door 2 is in the locked state, a specific person can unlock the door from outside and check the inside of the room.

When the solenoid 27 is again deactivated and the cam member 28 is returned to the position indicated by the solid line in FIG. 2, the normal operating condition as described above is achieved.

In the embodiment described above, when the solenoid 27 is not activated, the rotating member 15 occupies a retracted position where it does not contact the operating lever 36, and when the solenoid 27 is activated, the rotating member 15 rotates to a position where it can engage the operating lever 36. so that the solenoid 27 and the rotating member 15 are connected to the cam member 28 and the block 48.
, the trigger bolt 21, the pawl 19, and the lever 18, but it is also possible to use other suitable connection means.

According to the locking device according to the present invention, the door can be reliably locked during normal use to ensure safety, and the lock can be quickly and reliably released from outside in an emergency.

[Brief explanation of the drawing]

Fig. 1 is an external view of the door, Fig. 2 is a front view of the locking device built into the door and the structure, and the structure and the door itself are indicated by dashed lines. FIG. 4 is a perspective view of the main parts of the locking device shown in the figure, FIG. 4 is a perspective view showing the metal fittings provided on the structure side and locking holes formed therein, and FIG. 5 is a perspective view of the cam member and block. It is.

Claims (1)

[Claims] A locking device for a door supported by a structure so as to be openable and closable, and capable of sliding freely between a locked position in which it is engaged in a locking hole on the structure side and an unlocked position in which it is removed from the locking hole. A locking device for a door comprising a deadbolt supported on the door side and a locking means for operating the deadbolt between a locked position and an unlocked position by operating a key plate, the locking device being connected to a door knob, The solenoid has an actuation lever that is rotated by rotation of a knob, a solenoid that is provided on the structure side and that is operated from outside, and a rotating member that is rotatably supported by the dead bolt. When inactive, the pivot member occupies a retracted position in which it does not come into contact with the actuation lever, and the pivot member is pivoted such that actuation of the solenoid causes the pivot member to pivot to the actuation position in which it can engage the actuation lever. When the knob is rotated with the member and solenoid connected, the deadbolt in the locked position, and the solenoid actuated to bring the pivot member into the operating position, the actuating lever engages the pivot member. A locking device for a door, characterized in that it brings the deadbolt into an unlocked position.