JP2011231493A - Sliding door device with electric lock - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent malfunction of a lock caused by accidental triggering.SOLUTION: A sliding door device includes first detection means and second detection means for detecting a fully closed state of a door body 1. The first detection means includes a trigger 10 that protrudes from a depth face of a door-end-side vertical frame 5. Upon operation of the trigger 10, a first detection switch is switched on to detect the fully closed state of the door body 1. The second detection means includes a second detection switch provided inside an upper frame 2 above an opening. When the door body 1 is brought into the fully closed position, the second detection switch is switched on to detect the fully closed state of the door body. Only when both the first detection switch and the second detection switch are switched on, it is determined that the door body 1 is in the fully closed state. Then a lock piece at an unlock position is moved to a lock position so as to be engaged with an engaged portion on the end surface at the door end side of the door body 1.

Description

The present invention relates to a sliding door device with an electric lock.

The electric lock for the sliding door recognizes that the door is closed when the trigger attached to the lock body is pressed, and the sickle lock (the rotation lock piece) rotates to perform the locking operation. However, since the trigger always protrudes, if the trigger in the protruding position is pushed due to mischief etc. while the door is open, it will be mistakenly recognized as `` the door is closed '' and the door will be open. Despite being, the sickle lock protrudes. In this case, since the temporarily pressed trigger is in the protruding state again, the sickle lock cannot be electrically returned to the unlocked position from the control part of the electric lock, and the sickle that protrudes by manually turning the thumb turn. It was necessary to restore the lock.

Thus, when the sickle lock protrudes with the door open, there is a problem that the door cannot be fully closed until the sickle lock is manually returned to the unlocked position. Moreover, when the sliding door device with an electric lock is installed as a fire door, the performance as the fire door may not be ensured.

An electric lock for a sliding door provided with a trigger is known. For example, Patent Document 1 relates to an electric lock for sliding doors. Specifically, it is pivotally attached to the lock box body so as to be able to appear and disappear from a hole of a lock box body and a face seat attached to the lock box body. The rotation lock piece and the guide lock hole formed in the pivotally mounted portion of the rotation lock piece are pivotally supported by the lock box body so that the rotation lock piece can be rotated. A driven gear having a projecting pin, a gear train meshing with the driven gear, clutch means meshing with the gear train, meshing with the clutch means, and a rotation lock piece via the gear train and the driven gear A drive motor provided in the lock box main body so as to be able to rotate, and on the other hand, provided in the lock box main body so as to be able to rotate the rotation lock piece via the driven gear, and driven Manual locking / unlocking means (chamber having a driving gear meshing with the gear) A thumb turn located on the side and a cylinder located on the outdoor side), and an engagement groove is formed in the hook portion of the rotation lock piece, while the spring force of the spring member is used in the lock box body. A rotating piece that always pushes the slide bar (trigger) so as to protrude from the second hole of the face seat is pivotally supported, and the tip of the rotating piece is always engaged with the engaging groove. The sliding door is characterized in that a detector for detecting whether or not the sliding door is opened and closed is disposed at an appropriate location in the lock box body and is in contact with the contact of the inner end of the slide bar. An electric lock is disclosed.

JP-A-7-26809

An object of the present invention is to prevent malfunction of a lock in a case where a trigger is erroneously pressed in a sliding door with an electric lock other than in a fully closed state.

The technical means adopted by the present invention are:
A door that moves left and right to open and close the opening;
An electric lock main body provided with a lock piece on the door-end side vertical frame of the opening;
A locked portion that is provided on the door end side end surface of the door body, and the locking piece locks when locked,
First detection means for detecting the fully closed state of the door body, and second detection means,
The first detection means includes a trigger protruding from the expected surface of the door side vertical frame, and the first detection switch is turned on when the trigger is pressed to detect the fully closed state of the door body,
The second detection means includes a second detection switch provided in the upper frame above the opening, and the second detection switch enters when the door body is in the fully closed position to detect the fully closed state of the door body. Is,
Only when both of the detection switches of the first switch and the second switch are turned on, it is determined that the door body is in a fully closed state, and the lock piece in the unlocked position is moved to the locked position to move the cover. A sliding door device with an electric lock, which is locked to a locking portion.

In one aspect, a concavity extending in the height direction is formed on the prospective surface of the door-end side vertical frame,
The expectation surface includes a first expectation surface formed of a bottom wall of the recess, a second expectation surface on both sides of the first expectation surface, and a third expectation surface, and the trigger protrudes from the first expectation surface. And
The width dimension of the recess is larger than the thickness of the door body,
The depth of the recess is larger than the protruding dimension of the trigger protruding from the first expected surface, and the trigger does not protrude from the second expected surface and the third expected surface in the protruding posture.

In one aspect, the detection signal when the first detection switch is turned on is transmitted to the control unit via the control circuit, and the lock signal from the control unit is transmitted to the electric lock body via the control circuit. The lock piece in the locked position is moved to the locked position, and the second detection switch is an element of the control circuit. Only when the second detection switch is turned on, the control circuit is closed, and the detection signal and the locking / unlocking signal can be transmitted.
Alternatively, the control unit moves the lock piece in the unlocking posture to the locking posture by transmitting the locking signal to the electric lock body only when receiving the detection signals from both the first detection switch and the second detection switch. You may make it make it.

In the first aspect of the invention, since the door body is determined to be in the fully closed state only when both the first detection switch and the second detection switch are turned on, it is triggered when the door body is in the open position. Even if is pushed and the first detection switch is turned on, the lock piece does not protrude, and the protruding lock piece does not prevent the door body from being fully closed. Further, since the second detection switch is in the upper frame that cannot be easily touched, the second detection switch is not turned on due to mischief or the like.

In the invention according to claim 2, since the trigger in the projecting posture is within the depth of the concave portion of the expected surface of the door side vertical frame, the trigger is in a state of being concealed by being retracted in the concave portion, The possibility of accidentally pushing the trigger is reduced.

It is a figure of the sliding door apparatus at the time of door closing. It is a partial cross-sectional view of a sliding door device at the time of door closing. The lock main body of an electric lock is shown, the rotation lock piece is in the unlocking posture in the left figure, and the rotation lock piece is in the locking attitude in the right figure. It is a figure explaining the effect | action of the sliding door apparatus with an electric lock which concerns on this invention at the time of door closing. It is a figure explaining the effect | action of the sliding door apparatus with an electric lock which concerns on this invention at the time of door opening (at the time of non-fully closed). It is an operation | movement flowchart of the electric lock which concerns on this invention. It is a cross-sectional view of the sliding door apparatus which shows the smoke return provided in the door bottom side of the door body. It is a figure which shows the smoke return provided in the door bottom side of the door body.

FIG. 1 is a view of a sliding door device when the door is closed. The sliding door device has a door body 1 and a suspension rail 3 provided in the upper frame 2, and is suspended at the upper end of the door body 1. When the holding roller 4 is guided and moved by the suspension rail 3, the door body 1 opens and closes an opening formed by the upper frame 2, the door-end side vertical frame 5, the floor surface 6, and the door pocket portion 7. The suspension rail 3 extends so as to incline downward in the closing direction (door side) of the door body 1, and when closing the opening, the door body is closed by its own weight. Move in the direction. The door body may be moved in the closing direction using a self-closing device provided separately, with the suspension rail horizontal. The storage part of the door body 1 is not limited to the door pocket part 7 as shown in FIG. 2, and may be stored along the wall body 70 as shown in FIG. On the door bottom side of the door body 1, a smoke return 20 is provided for ensuring fire prevention performance. The smoke return 20 is formed from a plate material having an L shape in a plan view from the expectation piece 200 extending in the expectation direction and the finding piece 201 extending in the finding direction. It is made to contact and is fixed with a screw. As will be described later with reference to FIGS. 7 and 8, also in the smoke stack 20 of FIG. 2, the smoke stack 20 is bent at the upper end and the lower end to form an upper horizontal piece 202 and a lower horizontal piece 203. The upper horizontal piece 202 is fixed to the upper surface of the door body 1 with screws and the lower horizontal piece 203 is fixed to the lower surface of the door body 1 with screws.

The sliding door device includes an electric lock. When the door body 1 is fully closed, the electric lock is locked and the opening of the door body 1 is restricted. The lock body of the electric lock has a box-shaped casing 8, and the casing 8 is fully closed with a rotation lock piece 9 that can be rotated between an unlocking posture and a locking posture, and the door body 1. A trigger 10 is provided which constitutes a means for detecting that a state has been reached. The front plate 80 of the casing 8 is formed with a first opening that allows the rotation lock piece 9 to protrude and a second opening that allows the trigger 10 to protrude. The electric lock body is provided on the door-end side vertical frame 5, and the rotation lock piece 9 rotated in the locking direction from the unlocking posture is a locked portion (strike) provided on the door-end side end surface 11 of the door body 1. The plate is locked and locked. By providing the electric lock body on the frame side, the control circuit for connecting the electric lock body and the control unit 12 can be easily wired as compared with the case where the electric lock body is provided on the door body 1.

The electric lock main body is embedded in the door-end side vertical frame 5 so that the front plate 80 of the casing 8 is flush with the expected surface of the door-end side vertical frame 5. More specifically, as shown in FIG. 2, a concave portion 50 extending in the height direction is formed on the prospective surface of the door-end side vertical frame 5, and the prospective surface is a first wall composed of the bottom wall of the concave portion 50. It consists of a prospective surface 500, a second prospective surface 51 on both sides of the first prospective surface 500, and a third prospective surface 52. The width dimension of the recess 50 is larger than the thickness (expected dimension) of the door body 1, and the door end side end surface 11 of the door body 1 abuts on the first prospective surface 500 when the opening is fully closed. In this state, the door end side portion of the door body 1 is accommodated in the recess 50. The casing 8 of the electric lock is embedded in the door-end side vertical frame 5 so that the front plate 80 is flush with the first prospective surface 50.

As shown in FIG. 3, the rotation lock piece 9 is retracted and stored in the door-end side vertical frame 5 in the unlocked position (unlocked position), and the door-end side vertical frame 5 is locked when locked. 1 It rotates so that it may protrude from the prospective surface 500, and it becomes a locking attitude | position (locking attitude | position).

Although the trigger 10 is in a state of protruding from the front plate 80 (first appearance surface 500) of the casing 8, the depth of the recess 50 is larger than the protrusion size of the trigger 10 protruding from the first appearance surface 500. The trigger 10 is within the depth of the recess 50 in the protruding posture, and does not protrude beyond the second expected surface 51 and the third expected surface 52.

A plurality of lock elements including a rotation lock piece 9 and a trigger 10 are built in the casing 8 of the lock body. The lock elements constituting the lock body will be briefly described below. These locking elements are well known to those skilled in the art and are not shown. If necessary, for example, the description of Patent Document 1 can be referred to, but it will be understood by those skilled in the art that the structure of the lock element is not limited to Patent Document 1 or the structure described below.

In the casing 8, a motor as a driving means and a transmission mechanism for transmitting the rotation of the motor to the rotation of the rotation lock piece 9 are provided. The transmission mechanism is composed of a plurality of transmission elements (for example, a plurality of gear mechanisms and clutch means). When the motor rotates in response to a command from the control unit 12, the rotation lock piece 9 rotates from the unlocked posture (left diagram in FIG. 3) to the locked posture (right diagram in FIG. 3) via the transmission mechanism.

Manual locking and unlocking means are provided on the indoor and outdoor finding surfaces of the door-end side vertical frame 5. Specifically, the cylinder 13 provided with a key hole is provided on the outdoor-side finding surface 53 of the door-end side vertical frame 5, and the thumb turn 14 is provided on the indoor-side finding surface 54. Corresponding to the height position of the embedded lock body. The rotation operation by inserting the key into the keyhole or the rotation operation of the thumb turn 14 is transmitted to the rotation lock piece 9 through the transmission mechanism, and by the rotation operation of the inserted key or thumb turn 14, The rotation lock piece 9 can be rotated between the unlocking posture and the locking posture.

The trigger 10 constitutes first detection means for detecting the fully closed state of the door body 1. The trigger 10 is urged so as to maintain a posture protruding from the front plate 80 of the casing 8. Specifically, as shown in the left diagram of FIG. 3, the trigger 10 is engaged with a rotating piece 16 that is urged to rotate from the inside of the casing 8 toward the front plate 80 by a spring 15 provided on the base end side. And is always held in a posture protruding from the front plate 80 by the urging force of the rotating piece 16. The rotation piece 16 is engaged with the rotation lock piece 9 at the tip end side in a state where the rotation piece 16 is urged to rotate toward the front plate 80.

When the door body 1 moves in the closing direction, the door end side end surface of the door body 1 comes into contact with the tip of the trigger 10 and the trigger 10 is pushed into the casing 8, as shown in the right figure of FIG. The end portion contacts the first detection switch 17 to turn on the switch, and a detection signal is transmitted to the control unit 12 via the control circuit. Further, when the trigger 10 is pushed, the rotating piece 16 rotates in a direction away from the front plate 80, and the engagement between the distal end side of the rotating piece 16 and the rotation lock piece 9 is released.

The sliding door device further includes second detection means for detecting that the door body 1 is fully closed. The second detection means is a limit switch including a frame side switch element (second detection switch) 18 provided in the upper frame 2 and a door side switch element 19 provided on the upper surface of the door body 1. The frame-side switch element 18 and the door-side switch element 19 are provided at positions where the second switch (frame-side switch element 18) is turned on when the door body 1 moves to the fully closed position. In one embodiment, the frame side switch element 18 is a proximity sensor and the door side switch element 19 is a magnet. It will be understood by those skilled in the art that elements other than the combination of a proximity sensor and a magnet can be used as the frame side switch element 18 and the door side switch element 19.

The second switch constitutes a control circuit for the electric lock, and the control circuit is closed when the second switch is turned on. When the second switch is OFF, the control circuit is open so that no signal can be transmitted.

The operation of the electric lock for sliding doors configured as described above will be described with reference to FIGS. FIG. 4 shows a case where the door body is in a fully closed state. When the door body 1 moves in the closing direction and the door body 1 moves to the fully closed position, the second switch is turned on and the control circuit is closed. When the door body 1 moves to the fully closed position, the door end side end surface of the door body 1 abuts on the tip of the trigger 10 to push the trigger 10 into the casing 8, and the base end of the trigger 10 is the first detection switch. The switch is turned on upon contact with 17, and a detection signal is transmitted to the control unit 12 via the control circuit. The control unit 12 that has received the detection signal from the first detection switch 17 determines that the door body 1 is in the fully closed position, transmits a locking signal to the motor of the lock body via the control circuit, and rotates the motor. The rotation lock piece 9 in the unlocked posture is rotated in conjunction with the rotation, protrudes from the first opening of the front plate 80, and is engaged with the locked portion of the door end side end surface 11 of the door body 1 in the fully closed state ( Locked to the strike plate) and locked.

FIG. 5 shows a case where the door body 1 is in an open state. When the door body 1 is not in the fully closed posture, the frame side switch element 18 and the door side switch element 19 are separated from each other, and the second switch is turned OFF, so that a control circuit is not formed. Therefore, even if the trigger 10 protruding from the first expected surface 500 of the door-end side vertical frame 5 is accidentally pushed and the first detection switch 17 is turned on, the detection signal is not transmitted to the control unit 12. The lock signal 9 is not transmitted to the motor and the rotation lock piece 9 in the unlocked posture is not rotated and protrudes from the first opening of the front plate 80.

Further, the trigger 10 is within the depth of the recessed portion 50 of the expected surface of the door-end side vertical frame 5 in the protruding posture, and does not protrude beyond the second expected surface 51 and the third expected surface 52 of the expected surface. Therefore, the possibility that the trigger 10 is accidentally pushed is reduced.

FIG. 7 shows a fireproof type upper suspension sliding door in which the door body 1 is accommodated along the wall body 70. As shown in FIG. 8, the smoke return 20 is formed of a plate member having an L shape in plan view from a prospective piece 200 extending in the prospective direction and a finding piece 201 extending in the finding direction. It is made to contact | abut to the door end side surface of 1 and is fixed with the screw. The smoke return 20 is bent at the upper and lower ends to form an upper horizontal piece 202 and a lower horizontal piece 203. The upper horizontal piece 202 is fixed to the upper surface of the door body 1 with screws and the lower horizontal piece 203 is fixed to the lower surface of the door body 1 with screws.

In a state where the door body 1 is suspended, the upper surface of the door body 1 is in the upper frame, and the lower surface of the door body 1 is close to the floor surface, so the screws fixed to the upper horizontal piece 202 and the lower horizontal piece 203 Therefore, even if an attempt is made to pry open by using a bar or the like by removing the screw for fixing the prospective piece 200, the screw fixed to the upper horizontal piece 202 and the lower horizontal piece 203 has resistance to prying off. Therefore, it is excellent in crime prevention.

DESCRIPTION OF SYMBOLS 1 Door body 2 Upper frame 5 Door tip side vertical frame 50 Recess 500 First look-up surface 8 Lock body casing 9 Rotation lock piece 10 Trigger 11 Door tip side end surface 12 Control unit 17 First detection switch 18 Frame side switch element ( Second detection switch)
19 Door-side switch element

Claims (2)

A door that moves left and right to open and close the opening;
An electric lock main body provided with a lock piece on the door-end side vertical frame of the opening;
A locked portion that is provided on the door end side end surface of the door body, and the locking piece locks when locked,
First detection means for detecting the fully closed state of the door body, and second detection means,
The first detection means includes a trigger protruding from the expected surface of the door side vertical frame, and the first detection switch is turned on when the trigger is pressed to detect the fully closed state of the door body,
The second detection means includes a second detection switch provided in the upper frame above the opening, and the second detection switch enters when the door body is in the fully closed position to detect the fully closed state of the door body. Is,
Only when both of the detection switches of the first detection switch and the second detection switch are turned on, it is determined that the door body is in the fully closed state, and the lock piece in the unlocked position is moved to the locked position to move the cover. A sliding door device with an electric lock, wherein the locking portion is locked to a locking portion. A concave portion extending in the height direction is formed on the expected surface of the door-end side vertical frame,
The expectation surface includes a first expectation surface formed of a bottom wall of the recess, a second expectation surface on both sides of the first expectation surface, and a third expectation surface, and the trigger protrudes from the first expectation surface. And
The width dimension of the recess is larger than the thickness of the door body,
The depth of the concave portion is larger than a protruding dimension of a trigger protruding from the first expected surface, and the trigger does not protrude from the second expected surface and the third expected surface in a protruding posture. Item 10. The sliding door device with an electric lock according to Item 1.

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