JPH07324539A - Electric lock for sliding door - Google Patents

Abstract

PURPOSE:To aim at the promotion of secureness and smoothness in operation by attaching an electromagnetic actuator operating by means of a secret number to a lock to be installed in the mating part of each sliding door parallely shifting relatively, and interlocking it with a manual lock. CONSTITUTION:An electromagnetic actuator 10, operating on the basis of an electrical unlocking signal out of a secret code reader 20 such as a ten-key, a magnetic card reader or the like installed in and around an outer frame box 2, is linked up with an engaged lever 8. In addition, when this actuator 10 receives the unlocking signal and is energized with current, a plunger is retracted, so it turns to a solenoid type. In addition to locking and unlocking operations by way of moving a driving plate 4 form the inside, both locking and unlocking operations are made achievable in operating a cylinder lock 30 from the outside, while unlocking is further carried out by an electric lock consisting of the electromagnetic actuator 10. With this constitution, both these locking and unlocking operations can be done with certainty.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric lock for a sliding door which can be locked and unlocked at a combination portion of the sliding door.

[0002]

2. Description of the Related Art As a conventional sliding door lock to be mounted on a combination portion of sliding doors, for example, Japanese Utility Model Publication No. 58-21866, Japanese Utility Model Publication No. 58-72355, and Japanese Patent Application Laid-Open No. 61-1 are available.
72,752 or JP-A-64-48982.

However, when locking and unlocking these sliding door locks from the outdoor side (outer frame side), the inner cylinder of the cylinder lock is rotated exclusively by using the key, and the sickle is moved through the drive plate (operating plate). The lock / unlock operation was performed by swinging.
In other words, the operation was all mechanical.

[0004]

SUMMARY OF THE INVENTION The present invention is intended to provide an electric lock for a sliding door provided with a novel locking / unlocking mechanism including an electromagnetic actuator, wherein the electromagnetic actuator is a ten-key means or a magnetic card reader. (Magnetic card lock) The energization is activated in response to the generation of an electric unlocking signal issued from other code readers.

[0005]

In order to solve the above-mentioned problems, an electric lock for a sliding door according to the invention of claim 1 is a sickle pivotally supported by an inner frame so that it can be engaged and disengaged with a strike of an outer frame. And; a drive plate which is engaged with the sickle to swing the sickle and is movable in the vertical direction in the inner frame box; a receiving portion provided on the drive plate; A first lever for selectively abutting against the portion to displace the drive plate in the locking direction; and a second lever pivotally supported by the outer frame for selectively abutting against the receiving portion to displace the drive plate in the locking direction. A return spring provided on the first lever and the second lever; an outer operating member provided on an outer frame for operating the first lever and the second lever; an outer operating member and the first lever, A first linking member; a second linking member linking the outer operating member and the second lever ; Together they are pivoted outwardly crate,
A locking lever urged to selectively engage the second linking member to immovably restrain the second linking member; provided on the outer frame and selecting a restrained state of the second linking member And an electromagnetic actuator that is energized in response to the generation of an electrical unlocking signal.

An electric lock for a sliding door according to a second aspect of the present invention includes a sickle pivotally supported on an inner frame box fixed to an inner frame; a strike fixed to an outer frame; A drive plate engaged with the sickle for swinging the sickle between a locked position and an unlocked position, and guided so as to be vertically movable in the inner frame box; and a receiving portion provided on the drive plate. A first lever pivotably supported by an outer frame box fixed to an outer frame so that one end selectively abuts a receiving portion of the drive plate to displace the drive plate in the locking direction; A first lever and a second lever, both of which are pivotally supported in a pivotable manner and one end of which selectively abuts a receiving portion of the drive plate to displace the drive plate in the unlocking direction; And a return spring for urging the return lever to return to the outer frame for separately operating the first lever and the second lever from the outside An outer operation member movably provided on the front side of the; and a first linking member slidably provided on the outer frame box and linking the outer operation member and the first lever; slidable on the outer frame box A second linking member provided on the outer linking member for linking the outer operating member and the second lever; the second linking member pivotally supported by the outer frame and selectively engaged with the second linking member. A locking lever biased to restrain the member in an immovable state; provided on the outer frame, and linked to the locking lever to selectively release the restrained state of the second linkage member,
In addition, an electromagnetic actuator that is energized in response to the generation of the electrical unlock signal is provided.

[0007]

FIG. 1 shows a locked state in which the sickle 3 of the inner frame 1 is engaged with the strike 22 on the outer frame side in the embodiment of the electric lock for the sliding door of the present invention.

In order to unlock from the outdoor side (outer frame side), a personal identification code is input with the ten-key means 20 or the like to generate an electrical unlocking signal, and the electromagnetic actuator 10 is energized based on the unlocking signal. Let

When the electromagnetic actuator 10 is actuated for a predetermined number of seconds, for example, the locking lever 8 which holds the second link member 72 in an immobile state slightly swings clockwise in FIG. 1 to cause the second link member to move. The restraint of 72 is released.

When the outer operating member 52 is gripped by fingers and displaced downward in FIG. 1, the second linking member 72 also moves downward, causing the second lever 62 to swing counterclockwise.

Then, one end of the second lever 62 has the receiving portion 4
1, the drive plate 4 is moved upward in FIG. 1, so that the sickle 3 engaged with the strike 22 of the outer frame swings counterclockwise to reach the unlocked position.

When the fingers are released from the outer operating member 52 in this state, the return spring 65 causes the second lever 62, the second linkage member 72, and the outer operating member 52 to all move as shown in FIG.
And return to the initial standby position shown in FIG.

In the second state, the electromagnetic actuator 10
Is in the operating position, but when a predetermined energization time has elapsed, both the actuator 10 and the locking lever 8 return to the initial standby position shown in FIG.

When the sickle 3 is in the unlocked position, the sliding doors (the sliding doors on the inner frame side or the outer frame side) can of course be opened and closed.

Next, the locking of the electric lock of the present invention will be described with reference to FIG.
Will be described with reference to. In order to lock from the outdoor side (outer frame side), the outer operation member 52 may be simply grasped with fingers and displaced upward in FIG.

By this operation, the first link member 71 is similarly moved upward, and the first lever 61 is swung clockwise. Then, since one end of the first lever 61 moves the drive plate 4 downward through the receiving portion 43 in FIG. 2, the sickle 3 engaged with the drive plate 4 swings clockwise from the unlocked position. It moves to the locked position, and its tip end engages with the strike 22 of the outer frame.

When the fingers are released from the external operating member 52, the first spring 61, the first lever 61,
Both the linking member 71 and the outer operating member 52 return to the initial standby position shown in FIGS. 1 and 2.

In order to lock and unlock from the indoor side (inner frame side), the inner operating member 51 may be grasped with fingers and displaced downward in FIG. 2 or upward in FIG. 1, and the drive directly connected to it. Since the plate 4 moves downward or upward regardless of all the actuation members on the outer frame side, the sickle 3 swings forward or backward, and its tip is locked to the strike 22 of the outer frame or It is about to be released.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The electric lock for a sliding door will be described below with reference to the embodiments shown in the drawings. In FIG. 1, reference numeral 1 is a box-shaped inner frame box fixed to an inner frame (not shown) of a sliding door, 11
Is a decorative plate forming a part of the inner frame box 1, 12 is the inner frame box 1
A front plate which is a part of the outer frame box 2 which is a box lock fixed to an outer frame (not shown) of a sliding door, 21 is a decorative plate which is a part of the outer frame box 22, and 22 is an outer frame box 2 Each of the strikes is shown.

The electric lock of the present invention is attached to a fitting portion between an inner frame and an outer frame of a sliding door which moves relatively in a direction perpendicular to the paper surface of FIG.

A sickle 3 pivotally supported by a horizontal shaft 31 is provided in the lower portion of the inner frame 1 and the tip of the sickle 3 engages with an engagement hole 23 of a strike 22. The locking position (see FIG. 1) to be inserted and the unlocking position (see FIG. 2) in which the entire body enters the inner frame box 1 can be swung.

The sickle 3 is engaged with a driving plate 4 which is vertically guided in the inner frame 1. The engagement between the sickle 3 and the drive plate 4 can be configured by, for example, inserting the operation pin 41 fixed to the drive plate 4 into the engagement hole 32 provided in the sickle 3.

The sickle 3 may be provided with a click spring such as a conventionally known torsion spring (not shown). Long hole 44 provided below the drive plate 4
Is for allowing the horizontal axis 31 to escape.

When operating the drive plate 4 in the vertical direction from the indoor side (inner frame side), the drive plate 4 is provided so as to be slidable up and down in the decorative plate 11 of the inner frame box 1 and connected to the drive plate 4. The inner operating member 51 connected via 42 is used.

However, when the indoor side is used only for storing articles, the inner operating member 51 is not necessarily provided because the lock of the present invention is not unlocked from the indoor side.

The drive plate 4 is provided with a shelf-shaped receiving portion 43. The receiving portion 43 has a first lever 61 and a second lever 62, which will be described later, provided on the outer frame 2. One end of each of these contacts individually, and the drive plate 4 is displaced downward or upward.

A first lever 61 is swingably supported by a horizontal shaft 63 at a substantially central portion in the outer frame 2, and one end of the first lever 61 is selectively brought into contact with a receiving portion 43 of the drive plate 4 from above. The drive plate 4 is displaced in the locking direction.

Further, in the outer frame 2, the first lever 61
The second lever 62 symmetrically arranged with the common horizontal shaft 63
Is pivotally supported by a receiving portion 4 of the drive plate 4 at one end thereof.
The drive plate 4 is displaced in the unlocking direction by selectively abutting the lower part 3 from below.

It goes without saying that the horizontal shaft 63 shared by the first lever 61 and the second lever 62 may be provided separately.

The first lever 61 and the second lever 62 include
When not in operation Standby position (home position) as shown in Fig. 1 and Fig. 2
The return springs 64 and 65 such as torsion springs for applying a biasing force are attached so that the springs can be held. These return springs 64,
65 may be provided separately, or may be a common one.

Between the first and second levers 61 and 62 and the outer frame 2, it is desirable to provide appropriate stopper means (not shown) for restricting the swinging range of both levers 61 and 62.

As an example of the stopper means, a combination of a projection piece provided on each lever and an arcuate groove provided on the side plate of the outer frame 2 can be mentioned.

Reference numeral 52 denotes an outer operation member provided so as to be able to slide up and down in the decorative plate 22 of the outer frame box 2, and a projecting piece 53 is provided at the rear of the outer operation member so as to project inward.

The projecting piece 53 of the outer operating member 52 and the other end of the first lever 61 are linked by a first linking member 71 which is clearly shown in FIGS. 4 to 6, and the first linking member 71. Is guided in the outer frame 2 so as to be linearly movable in the vertical direction.

In the first linking member 71 shown in FIGS. 4 to 6, reference numeral 73 is a vertically long slot with its lower end opened, with which the projecting piece 53 of the outer operating member 52 is engaged, and 74 is the first. It is a horizontally long engagement groove in which a pin 66 protruding from the other end of the 1 lever 61 is engaged.

Further, the protruding piece 53 of the outer operating member 52 and the second
The other end of the lever 62 is linked by a second linking member 72 which is clearly shown in FIGS. 7 and 8, and the second linking member 72 is guided so as to be vertically movable linearly in the outer frame 2. Has been done.

In the second linking member 72 shown in FIGS. 7 and 8, reference numeral 75 is a vertically long slot into which the projecting piece 53 of the outer operating member 52 is engaged, and 76 is the other end of the first lever 62. Is an engaging hole that also serves as an arc-shaped escape hole for engaging the pin 67 protruding from the shaft. Further, reference numeral 77 is an escape hole for allowing the horizontal shaft 63 of the first lever 61 to escape, and 78 is a locking lever 8 described later. Each of the relief pieces is provided so that it can be temporarily ridden in a movable state.

In order to selectively engage the second linking member 72 and restrain the second linking member 72 in an immovable state, the locking lever 8 swings in the outer frame 2 about the horizontal axis 81. The lock lever 8 is pivotally supported as much as possible, and the lock lever 8 is provided with a spring 82 such as a torsion spring for urging the lock lever 8 in a direction in which the second link member 72 is engaged.

In the vicinity of the lock lever 8 in the outer frame 2, an electromagnetic actuator linked to the lock lever 8 for selectively releasing the restrained state of the second link member 72 by the lock lever 8. 10 is provided.

The electromagnetic actuator in the illustrated embodiment is a solenoid in which the plunger is retracted when an unlock signal is received and energized.

The electromagnetic actuator 10 includes an outer frame 2
A ten-key means (a secret code input board), a magnetic card reader (a magnetic card lock) or another secret key reading device 20 provided in the vicinity provides electricity to the device to energize it in response to the generation of an electrical unlocking signal, and the spring 82 is actuated. Then, the plunger is sucked, and the locking lever 8 is operated so as to rotate counterclockwise in the figure.

As a result, the free end (lower end) of the locking lever 8
The relief piece 78 at the upper end of the second linking member 72 that has been locked to the folding step of the is released (see FIG. 3), and the second linking member 72 becomes free, resulting in the unlocking of the electric door lock. Will be done.

Then, the electric lock for the sliding door is unlocked,
When the outer operating member 52 is operated to lower the second linking member 72, the hook 3 can be retracted into the inner frame box 1 to open the sliding door as described above.

When the fingers are released from the outer operating member 52, the related member returns to the standby position by the urging force of the spring as described above, while the electromagnetic actuator 10 is in the operating state.

Therefore, when the electromagnetic actuator is de-energized and the locking lever 8 is released and rotates counterclockwise in the drawing, the relief piece 78 between the locking lever 8 and the second link member is released.
And will re-engage.

However, at the time of unlocking the electric lock, if the outer operating member 52 is held with fingers for a time longer than the time when the electromagnetic actuator 10 is energized, the locking lever 8 is released before the relief piece 78 is restored. In some cases, the release piece 78 is locked to the lower end of the locking lever 8 from below, and the release piece 78 and the bent step portion of the locking lever 8 are engaged with each other for locking. It can be impossible.

However, since the dimension of the relief piece in the illustrated embodiment in the longitudinal direction (vertical direction in the figure) is set larger than the operation stroke of the second link member, the relief piece 78 is provided.
Even when the lever is fully moved downward, the bent step portion at the lower end of the locking lever is in a state of riding on the side surface of the relief piece, and the above-mentioned inconvenience does not occur.

In the electric lock in the illustrated embodiment, when the electromagnetic actuator 10 stops operating due to a power failure or other failure, the locked state by the locking lever 8 of the second link member 72 cannot be released, and the outdoor side Sometimes it is impossible to unlock from.

A cylinder lock 30 provided in the outer frame 2, a pinion 40 fixed to the inner cylinder thereof, and a rack 50 which is engaged with the pinion 40 and can slide up and down.
The present invention allows the electric lock for the sliding door of the present invention to be unlocked from the outside of the room by only mechanical operation regardless of the restrained state of the second linking member 72 in an emergency as described above.

By rotating the pinion 40 with a duplicate key inserted in the cylinder lock 30, the rack 50 is moved to the position shown in FIG.
When it is moved downward with, the lower end of the second lever 62 presses the pin 67 at the other end of the second lever 62.
Swing 2 counterclockwise.

Therefore, one end of the second lever 62 has the receiving portion 4
The driving plate 4 is moved upward in FIG. 1 via the sickle 3, and the sickle 3 is engaged with the strike 22 of the outer frame.
Swings counterclockwise to unlock.

In the figure, reference numeral 91 is a protective hood which is projected from the front opening of the inner frame box 1 to prevent unauthorized unlocking at the time of locking, and 92 is elastically engaged with the rear portion of the sickle 3 at the time of locking. The locking means for fitting 93 is a sickle 3 only when the sliding door is closed.
The trigger means for controlling the downward movement of the drive plate 4 so as to project is shown respectively.

[0053]

The electric lock for a sliding door according to the present invention described above has a novel locking / unlocking mechanism including an electrical structure, and its operation is extremely reliable and smooth. Produce the effect of.

[Brief description of drawings]

FIG. 1 is a partial vertical sectional side view showing a locked state of an embodiment of an electric lock for a sliding door according to the present invention.

FIG. 2 is a partial vertical sectional side view showing a process of the unlocking operation.

FIG. 3 is an enlarged partial vertical sectional side view of an essential part of FIG.

FIG. 4 is a front view of the first link member removed from the electric lock for a sliding door of FIG.

FIG. 5 is a side view thereof.

FIG. 6 is a rear view thereof.

FIG. 7 is a side view of the second linking member removed from the sliding door electric lock of FIG. 1.

FIG. 8 is a rear view thereof.

[Explanation of symbols]

 1 Inner Frame Box 2 Outer Frame Box 22 Strike 3 Sickle 4 Drive Plate 43 Receiving Section 51 Inner Operation Member 52 Outer Operation Member 61 First Lever 62 Second Lever 64 Return Spring 65 Return Spring 71 First Link Member 72 Second Link Member 8 Locking lever 10 Electromagnetic actuator

Claims (3)

[Claims] 1. A sickle pivotally supported by an inner frame so that it can be engaged with and disengaged from a strike of an outer frame; and a sickle that is engaged with the sickle for swinging the sickle and is vertically movable in the inner frame. A drive plate; a receiving portion provided on the drive plate; a first lever pivotally supported by the outer frame and displacing the drive plate in the locking direction by selectively abutting on the receiving part; A second lever that is supported and that selectively abuts the receiving portion to displace the drive plate in the locking direction; a return spring provided for the first lever and the second lever; for operating the first lever and the second lever An outer operating member provided on the outer frame box; a first linking member that links the outer operating member and the first lever; a second linking member that links the outer operating member and the second lever And; pivotally supported by the outer frame and selectively engaging the second link member to immobilize the second link member. A locking lever urged to restrain the lock lever; provided on the outer frame, linking the lock lever to selectively release the restrained state of the second linkage member, and an electrical release signal An electric lock for a sliding door, comprising: an electromagnetic actuator that is energized in accordance with the occurrence of 2. A sickle pivotally supported on an inner frame box fixed to an inner frame; a strike fixed to an outer frame; and the sickle swinging between a locked position and an unlocked position. Drive plate that engages with the sickle and is guided in the inner frame so as to be movable in the vertical direction; a receiving portion provided on the drive plate; and a swingable outer frame that is fixed to the outer frame A first lever pivotally supported on the outer frame and pivotally supported on the outer frame so that one end of the drive plate is displaced in the locking direction by selectively abutting one end on the receiving portion of the drive plate; A second lever that selectively abuts the receiving portion to displace the drive plate in the unlocking direction; a return spring that urges both the first lever and the second lever to return to the original position; An outer operating member movably provided on the front side of the outer frame for separately operating the first lever and the second lever, and an outer frame. A first linking member that is slidably provided on the outer linking member and links the outer operating member and the first lever;
A second linking member slidably provided on the outer frame and linking the outer operating member and the second lever; pivotally supported on the outer frame and selectively engaged with the second linking member A locking lever that urges the second linking member to immobilize the second linking member in an immovable state; And an electromagnetic actuator that is energized when an electric unlock signal is generated. 3. The electric lock for a sliding door according to claim 1, further comprising an inner operation member connected to the drive plate for operating the drive plate from the indoor side.