JP2797275B2 - Flat handle device with confirmation switch - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flat handle device in which a handle immersed and held in a case when not in use protrudes and rotates to a grippable position when in use.

[0002]

2. Description of the Related Art In a conventional flat handle device, as disclosed in Japanese Utility Model Publication No. 7-17203, a locking shaft is rotatably mounted in the front-rear direction of a case, and a handle is provided at the front end of the locking shaft. Direction, and a locking plate is connected to a rear end portion of the locking shaft, and a handle is directly connected to the left and right shaft pins as disclosed in Japanese Patent Application Laid-Open No. 6-240929. There is a method in which a stopper plate pivotally attached to a case and attached to the back of the case with a front-rear shaft pin is rotated by an operation projection at the base end of the handle.

In any type of flat handle device, when it is necessary to prevent unauthorized opening of the door by an unauthorized person, a lock unit is embedded at the tip of the handle, and a lock plate interlocked with the rotor of the lock unit is attached. The handle is locked to the case by engaging with the receiving groove on the case side, but since means for confirming this locking is not provided, even if the angle lock front unit is attached, There is no end to the case where the user leaves the lock unit without performing the locking operation.

On the other hand, even if the handle is locked to the case by the locking unit, when the lock unit is unlocked by the picking tool, there is no means for detecting this unlocking, so that the door is illegally opened. Cannot be prevented from being open to the public.

[0005]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to be able to confirm whether or not a locking operation of a lock unit has been performed, and to accurately detect unauthorized unlocking of the lock unit. An object of the present invention is to provide a flat handle device with a confirmation switch.

[0006]

Means for Solving the Problems Hereinafter, a description will be given using reference numerals in the accompanying drawings. A flat handle device with a confirmation switch according to the present invention has a handle 2 pivotally attached to a case 1 so as to be able to protrude and retreat, and in a retracted position. The handle 2 is locked by the lock plate 16 linked to the rotor 24 of the lock unit 4.
In the flat handle device which is locked to the case 1, a micro switch 13 is provided on the back side of the case 1, and a switch operation pin 15 for pressing an actuator lever 14 of the micro switch 13 is provided on the case 2 so as to be movable. A pin receiving hole 25 with which the front end of the switch operation pin 15 engages when the handle 2 is immersed in the case 1 is provided in the lock plate 16. When the lock plate 16 is moved to the locked position by rotation of the rotor 24, 1
The switch operation pin 15 is moved in conjunction with the switch operation pin 6.

In the locked state in which the door 26 is locked to the fixed frame 27 by the stopper plate 6 as shown in FIG. 1, the handle 2 is immersed in the case 1, and as shown in FIG. The handle 2 is locked to the case 1 by the distal end of the lock plate 16 of the unit 4 engaging with the receiving groove 28 on the case side. When a predetermined key 29 is inserted into the key hole 30 of the rotor 24 and the rotor 24 is turned in a predetermined direction, the lock plate 16 slides in conjunction with the rotor 24, and
As shown in FIG.
Escape from 8. The handle 2 unlocked from the case 1 projects and rotates from the case 1 by a predetermined activation operation.

When the lock plate 16 is in the locked position as shown in FIG. 9, the switch operation pin 15 presses the actuator lever 14 as shown in FIG. 8, and the micro switch 13 is turned on. I have. Therefore, the confirmation circuit such as the lighting circuit in which the microswitch 13 is incorporated is closed, and the lighting of the notification lamp confirms that the door is in the closed and locked state.

When the lock plate 16 is in the unlocked position as shown in FIG. 5, the switch operation pin 15 is at a position where the actuator lever 14 is not pressed as shown in FIG. 4, and the micro switch 13 is turned off. ing. Therefore, the confirmation circuit incorporating the microswitch 13 is opened, and it is confirmed that the door is unlocked and openable by the extinguishing of the notification lamp. When an alarm circuit such as an alarm buzzer is connected to the micro switch 13, the lock unit 4 is unlocked by the picking tool and the lock plate 16 is moved to the unlock position. The alarm circuit is turned on by 15 and an alarm sound or the like is emitted.

A confirmation circuit and an alarm circuit in which the microswitch 13 is incorporated can be connected to a control center by wire or wirelessly.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the illustrated embodiment, a locking handle 3 is rotatably mounted in the front-rear direction of a case 1 and a handle 2 is attached to a front end of the locking handle 3 by a left-right shaft pin 31. This is a system in which a stopper plate 6 is connected to the rear end of the locking shaft 3 by being pivotally attached. The stopper plate 6 is fitted to the rear end portion 10 of the rectangular cross section of the locking shaft 3 so as not to rotate relatively, and is fixedly fastened to the locking shaft 3 by bolts 20 through washers 18 and 19. The lock shaft 3 is rotatably fitted into the shaft hole 32 of the bearing cylinder 11 of the case 1, and is prevented from being removed by the C-shaped retaining ring 12. The upper end of the handle 2 is fitted in the split groove 33 of the locking shaft 3. The case 1 includes a U-shaped washer plate 7 and a bolt 21 fitted from the rear side.
Thus, it is fastened and fixed to the door 26. A screw hole 43 for screwing the bolt 21 is formed in the rear boss portion of the case 1 up and down.
Are provided.

A lock lever 5 is pivotally mounted on a lower portion of the front concave portion of the case 1 by a shaft pin 34 in the left-right direction. The lock lever 5 is rotationally urged in the direction of the handle 2 by the torsion coil spring 22 fitted on the shaft pin 34, and the locking claw 35 is engaged with the receiving groove 36 at the distal end of the handle 2 to lock the handle 2. It is restrained and held at the immersion position in the case 1. By pushing the lock lever 5 counterclockwise as shown in FIG.
Escapes from the receiving groove 36 and the restraint of the handle 2 is released. By this starting operation, the handle 2 is protruded and rotated to the position shown in FIG. 3 by the action of the torsion coil spring 37 fitted on the shaft pin 31. When the protruding handle 2 is gripped and turned in a predetermined direction, the lock shaft 3 rotates integrally with the handle 2, and the stopper plate 6 is detached from the receiving portion on the fixed frame 27 side.
Thereby, the lock of the door 27 to the fixed frame 27 is released, and the door 26 is opened by pulling the handle 2 toward the user.

As the lock unit 4, a known lock mechanism such as a disk tumbler lock and a pin tumbler lock is arbitrarily selected and used. A drive projection 17 is eccentrically protruded from the center of the rotor 4 on the rear end face of the rotor 4 of the lock unit 4, and the drive projection 17 is fitted in a passive cam groove 38 of the lock plate 16. The lock plate 16 is fitted into a vertical guide groove 39 at the tip of the handle 2, and
When the dial 4 is turned, the driving projection 17 pushes the inner wall surface of the passive cam groove 38, so that the driving projection 17 slides vertically. The receiving hole 25 provided in the lower portion of the lock plate 16 has a diameter such that the tip of the switch operation pin 15 can be smoothly engaged and disengaged when the handle 2 is rotated in and out of the case 1. The front end portion is appropriately chamfered as needed. The switch operation pin 15 is vertically movably inserted into a slot 42 in the rear wall of the case 1, and is prevented from moving forward and backward by the collar 41 and the intermediate flange 40 fitted to the rear end. An escape slot 43 intersecting the guide slot 39 is provided at the tip of the handle 2 in the vertical direction. When the handle 2 is stored in the case 1, the switch operation pin 15 enters the receiving hole 25 from the slot 43.

The microswitch 13 is fastened and fixed to the rear wall of the case 1 by screws 23 with the waterproof cover 8 covered. Each terminal of the microswitch 13 is connected to a required electric circuit by a lead wire 9. The present invention is based on a system in which a handle is directly pivoted to a case by a left-right axis pin, and a stopper plate attached to the back of the case with a front-rear axis pin is rotationally driven by an operation projection at the base end of the handle. It can also be applied to a flat handle device.

[0015]

As described above, in the flat handle device with the confirmation switch of the present invention, the switch operation pin 1 for pressing the actuator lever 14 of the micro switch 13 is provided.
5 is movably mounted on the case 2, and the pin receiving hole 25 with which the front end of the switch operation pin 15 engages when the handle 2 is immersed in the case 1 is provided on the lock plate 1 of the lock unit 4.
6 and the lock plate 16 is rotated by the rotation of the rotor 24.
When the switch is moved to the lock position, the switch operation pin 15 is moved in conjunction with the lock plate 16, and the micro switch 13 that is turned on and off by the switch operation pin 15 is appropriately connected to a confirmation circuit, an alarm circuit, or the like. , It is possible to easily confirm whether or not the locking operation of the lock unit 4 has been performed, and it is possible to accurately detect unauthorized unlocking of the lock unit and take security measures.

[Brief description of the drawings]

FIG. 1 is a front view showing a locked state of a flat handle device with a confirmation switch according to one embodiment of the present invention.

FIG. 2 is a rear view of the flat handle device.

FIG. 3 is a right side view of the flat handle device when the handle protrudes and rotates.

FIG. 4 is a cross-sectional view taken along line AA of FIG. 3, in which a switch operation pin is in an OFF operation position because a lock plate is in an unlocking position.

FIG. 5 is a sectional view taken along line BB of FIG. 4;

6 is a sectional view taken along line CC of FIG. 4;

FIG. 7 is a sectional view taken along line DD of FIG. 5;

FIG. 8 is a cross-sectional view corresponding to FIG. 4 when the switch operation pin is at the ON operation position because the lock plate is at the lock position.

FIG. 9 is a sectional view taken along line EE of FIG. 8;

FIG. 10 is a sectional view taken along line FF of FIG. 9;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Case 2 Handle 3 Locking shaft 4 Locking unit 5 Lock lever 6 Lock plate 7 Mounting washer 8 Waterproof cover 9 Lead wire 10 Rear end of locking shaft 11 Case cylinder part 12 C-shaped retaining ring 13 Micro switch 14 Actuator lever 15 Switch operation pin 16 Lock plate 17 Rotor-side drive projection 18 Washer 19 Washer 20 Bolt 21 Bolt 22 Locking lever return biasing spring 23 Switch fixing screw 24 Locker unit rotor 25 Switch operation pin receiving hole 26 Door 27 Fixed frame 28 Lock plate receiving groove 29 Key 30 Key hole 31 Handle shaft pin 32 Case shaft hole 33 Locking shaft split groove 34 Lock lever shaft pin 35 Lock lever locking claw 36 Handle side receiving Groove 37 Spring for biasing handle protrusion 38 Passive Beam groove 39 guide groove hole 40 of the switch operating pin of the intermediate flange section 41 switches the operation pin of the rear collar 42 casing back wall slot 43 handle back portion of the relief slot

Claims (1)

(57) [Claims] 1. A flat handle device in which a handle 2 is pivotally attached to a case 1 so as to be able to protrude and retract, and the handle 2 is locked to the case 1 by a lock plate 16 interlocked with a rotor 24 of the lock unit 4 in a retracted position. 1
A micro switch 13 is provided on the rear side of the switch, and a switch operation pin 15 for pressing an actuator lever 14 of the micro switch 13 is movably mounted on the case 2. When the handle 2 is immersed in the case 1, the switch operation pin 1
The pin receiving hole 25 with which the front end of
6 and the lock plate 16 is rotated by the rotation of the rotor 24.
A flat handle device with a confirmation switch for moving the switch operation pin 15 in conjunction with the lock plate 16 when the device is moved to the locking position.