JPH0358633B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an electric lock device that is installed on a residential door and that can be unlocked by remote control.

[Conventional technology]

In conventional electric lock devices, the plunger of the solenoid and the strike plate are installed on the pillar side of the door frame, and the strike plate is connected to the plunger of the solenoid so that the strike plate provided in the electric lock device can be reversed by the solenoid when energized. There is a so-called electric lock strike plate device in which the locked state is released and the door side dead bolt that protrudes while pushing the strike plate is released, making it possible to open the door.

[Problem that the invention seeks to solve]

In such an electric lock catch plate device, the operating direction of the catch plate is reversed to the door opening direction when unlocking, so it is difficult to illegally open the door with strong force when locking. If such a measure is carried out, the support shaft supporting the catch plate is deformed, and the catch plate becomes inoperable or destroyed.

[Purpose of the invention]

An object of the present invention has been made in view of the above-mentioned drawbacks, and in addition to providing an electric lock device on the door side, the dead bolt in the electric lock device is automatically activated by the biasing force of a spring when the solenoid is energized. At the same time, the sliding pin of the rotating cam attached to the motor rotates when locking.
The purpose is to advance the dead bolt in the locking direction and prevent the dead bolt from retreating by a blocking member, and when the blocking is released, the dead bolt can be automatically unlocked by a spring.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings. In the drawings, Fig. 1 is a cutaway side view of the lid body (not shown) of electric lock device A, and Fig.
FIG. 3 is a right side view of the figure. Figures 3 to 6 are diagrams of the operating state of the dead bolt, in which Figure 3 is a diagram of the electric lock device in its unlocked position, Figure 4 is a diagram of the state in which it is moving to the locked position, and Figure 5 is a diagram of the state in which it is moving to the locked position. The figure is a state diagram of the locked position, and FIG. 6 is a state diagram of the start of movement to the unlocked position.

1 and 3, a solenoid 2 that operates when energized is provided in the upper part of the case body 1 of the electric lock device A, and an electric wire H is connected to this solenoid 2, and the electric wire H' of the motor M is connected to the case body 1. Wire to external connector C of 1.

A blocking member 5 that prevents the dead bolt 4 from advancing is attached to the tip of the plunger 3 that is provided on the solenoid 2 and that moves back and forth, and one end 5a of this blocking member 5 is latched to the wall surface 1' of the case body 1. It is now possible to swing freely. Further, the other end 5b of the blocking member 5 is notched (see FIG. 3).

A dead bolt 4 that moves forward and backward from the case body 1 is slidably provided at the bottom of the blocking member 5 at the bottom of the solenoid 2, and a protrusion 4a is formed on the upper side wall surface 4' of the dead bolt 4, so that the dead bolt 4 is slidably moved forward and backward from the case body 1. The protrusion 4a is in a position where it engages with the notch in the other end 5b of the blocking member 5 (see FIG. 5).

A reciprocating pin 6 is disposed inside a through hole 4'' drilled inside this dead bolt 4, and an annular groove 6' having an annular slope formed at the rear of the retracting pin 6.
to be drilled. This advancing/retracting pin 6 is always urged by a spring 7 within the dead bolt 4. Further, a vertically movable pin 8 having a tapered tip is inserted into the annular groove 6' of the advancing/retracting pin 6 so as to pass through the dead bolt 4. When the advancing/retracting pin 6 moves,
This vertical movement pin 8 is raised and pushes the blocking member 5 up and down. When operating this vertical movement pin 8,
This is used as an emergency release method in the event of a power outage while the door is locked.

In addition, a motor M is attached to the lower part of the dead bolt 4 to move the dead bolt 4 toward the locked position.
A rotary cam 9 is provided which is driven by a rotary cam 9, and a push pin 10 implanted in the rotary cam 9 contacts the notch 4 at the rear end of the dead bolt 4, and this rotary cam 9 drives the motor M. At the same time, the dead bolt 4 is pushed by the push pin 10 and the case body 1 is rotated.
It advances to the outside and becomes locked (see Figure 5).

In addition, in order to stop the rotary cam 9 at the original position when it rotates once, a notch recess 9a is bored in the circumferential wall surface 9' of the rotary cam 9, and a micro Switch MS electrical contact piece 1
1 is arranged so that it can move forward and backward.

Therefore, when remotely controlled from the outside, the motor M
becomes energized, so by driving motor M,
Rotating cam 9 rotates. At this time, the push pin 10 of the rotating cam 9 pushes the rear end of the dead bolt 4 and moves the dead bolt 4 in the locking direction (in the direction of arrow A). When the dead bolt 4 is located at the locked position, the tip 5b of the blocking member 5 is engaged with the protrusion 4a formed on the dead bolt 4, thereby preventing the dead bolt 4 from retreating.

Next, when unlocking, when the solenoid 2 is energized by remote control, the plunger 3 is driven, and the blocking member 5 attached to the plunger 3 is moved upward. At this time, the locking state between the blocking member 5 and the protrusion 4a of the dead bolt 4 is released, and the dead bolt 4 becomes movable in the projecting/retracting direction.
The dead bolt 4 is biased in the direction of sinking into the case body 1 (unlocking direction) by the spring 12 inserted between the rear end of the dead bolt 5 and the case body 1. (direction of arrow B).

〔Effect of the invention〕

As described above, in the present invention, the dead bolt is advanced by the rotation of the rotary cam, and in the locked position, the blocking member is engaged with the protrusion of the dead bolt, and when the lock is unlocked, the blocking member is removed from the protrusion and the dead bolt is attached at the same time. Since it is made to be retracted by the biased spring, the structure is simple, easy to accommodate in the frame, easy to wire, and moreover, it has advantages such as increased strength compared to a strike type electric lock.

[Brief explanation of drawings]

The figures show one embodiment of the present invention, in which Fig. 1 is a side view with the lid body cut away from the electric lock device, and Fig. 2 is a side view of the electric lock device with the lid body cut away.
The right side view of the figure, Fig. 3 is a diagram of the electric lock device in the unlocked position, Fig. 4 is a diagram of the state during movement to the locked position, Fig. 5 is a diagram of the locked position, and Fig. 6 is a diagram of the unlocked position. Fig. 3 represents a state diagram for starting movement to a position. A...Electric locking device, M...Motor, 1...Case body, 2...Solenoid, 3...Plunger, 4...Dead bolt, 4a...Protrusion, 5...
Blocking member, 6... Advance/retreat pin, 7... Spring,
8... Vertical movement pin, 9... Rotating cam, 10... Pushing pin.

Claims (1)

[Claims] 1. A case body that is attached to the pillar side that is the door frame, a solenoid that is provided inside the case and whose plunger is activated by an unlock signal, and a solenoid that is swingable with one end as a fulcrum and whose other end is connected to the plunger. a blocking member to be mounted; a dead bolt that is provided so as to be retractable from the case body and has a protrusion that is latched to the blocking member when protruding; and a dead bolt that is inserted between the dead bolt and the case body and that moves the dead bolt in the retracting direction. The solenoid is equipped with a spring that biases the dead bolt, a motor that is provided in the case body and rotates once in response to a locking signal, and a push pin that is fixed to the shaft of the motor and that pushes the dead bolt in the protruding direction by rotation. An electric lock device characterized in that when receiving an unlocking signal, the plunger moves in a direction in which the other end of the blocking member moves away from the protrusion, and the dead bolt is retracted in a biasing direction.