JPH0754513Y2 - Sliding door locking device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to a device for locking a sliding door used in a gate or the like provided at a doorway of a garage when the door is closed.

[Prior Art] Generally, in an entrance sliding door, a pair of sliding doors 1'is openably and closably attached to an outer frame a as shown in FIG. 8 so that when the sliding door 1'is closed, it can be locked by an electric lock b. Has become. As shown in FIG. 9, this electric lock b is called a hook lock, and a hook-shaped locking hook c is designed to move in and out, and the locking hook c projects as shown in FIG. ), The locking hook c is locked by locking with the locking pin d,
As shown in FIG. 10 (b), the locking hook c is retracted so that the locking hook c is disengaged from the locking pin d to be unlocked.

[Problems to be solved by the invention] However, in such a conventional example, the locking and unlocking operation is unstable because the locking hook c is not caught by the locking pin d unless the sliding door 1'is closed exactly. However, there is a problem that it is not suitable for outdoor sliding doors such as gates that cannot be constructed accurately.

The present invention has been made in view of the above-mentioned points, and an object of the present invention is to provide a locking device for a sliding door that can be locked even if there is some error in the stop position when the sliding door is closed. .

[Means for Solving the Problems] In order to achieve the above object, the sliding door locking device of the present invention comprises:
A stopper plate 26 is attached to the lower part of the rear side near the side end opposite to the open / close end of the sliding door 1, and a lock body 25 driven up and down by a solenoid 24 closes the sliding door 1 on the rear side of the sliding door 1. When it is placed at a position corresponding to the stopper plate 26,
The upper side of the lock body 25 is covered with a cover 31, and the stopper plate 26 is provided with a U-shaped notch 27 of an upper surface opening that is locked by the lock body 25 when the lock body 25 descends.
The width of the lock body is wider than that of the lock body 25.

[Operation] By raising the lock body 25, the lock body 25 can be released from the notch 27 and unlocked, and the sliding door 1 can be freely opened and closed,
Further, by lowering the lock body 25 with the sliding door 1 closed, the lock body 25 can be locked and locked so that the sliding door 1 does not open. Since there is a margin in the width of the notch 27 of the stopper plate 26 when locking, it can be locked even if the stop position of the sliding door 1 is slightly displaced.

[Embodiment] In the present embodiment, an embodiment of the gate 1a will be described as an example of the sliding door 1. A guide rail 8 is laid on the ground 7 where the gate 1a is attached so that it can be opened and closed. The caster 2 provided at the lower part of the gate 1a is rotatably mounted on the guide rail 8 and the gate 1a runs left and right. It's free. A pillar 9 is erected on one end side of the guide rail 8 so as to be a door stop when the gate 1a is closed. A pillar 10 is provided upright at the other end of the guide rail 8 and an intermediate portion in the longitudinal direction of the guide rail 8 at a position lateral to the guide rail 8, and the upper end of the pillar 10 extends to the rear side. The bracket 11 is attached so that A pair of guide rollers 12 are attached to the bracket 11, and the pair of guide rollers 12 sandwich the upper end of the gate 1a to guide the gate 1a movably. Fixed plates 14 are attached to lower portions of the vertical frames 13 at both ends of the gate 1a, and a chain 3 is installed between the fixed plates 14 at both ends. The chain 3 is covered with a chain cover 15 having a U-shaped cross section over the entire length. The guide rail 8 is provided in the vicinity of the pillar 10 located in the middle of the guide rail 8 in the longitudinal direction.
The drive unit A is arranged so as to face the column 10 via the. The drive unit A is internally provided with a motor 4 and a speed reducer 23, and the output of the motor 4 drives the speed reducer 23 via the transmission chain 16. The output shaft 17 of the speed reducer 23 projects to the outside, and the drive sprocket 5 is mounted on the output shaft 17. The drive sprocket 5 is engaged with the chain 3. This drive sprocket 5
A tension sprocket 6 that idles is provided on both sides of, and the tension sprocket 6 is engaged with the chain 3 so that the chain 3 is wound around the drive sprocket 5. Further, the drive unit A is provided with a control box 20, a radio control receiver 21, and a power supply unit 22. Further, a solenoid 24 is incorporated in the drive unit A, and the solenoid 24 rotationally drives the interlocking plate 28 to rotationally drive the fulcrum shaft 29. The fulcrum shaft 29 projects outside the drive unit A, and the drive plate 30 is attached to the fulcrum shaft 29 outside the drive unit A.
One end of the drive plate 30 is integrally mounted, and the drive plate 30 is rotated up and down by the rotation of the fulcrum shaft 29. A lock body 25 is provided at the other end of the drive plate 30, and the lock body 25 is moved up and down by the rotation of the drive plate 30. This lock body 25
In the case of the character of this embodiment, is formed by rotatably mounting the roller 25b on the shaft portion 25a. The drive plate 30 and the upper part of the lock body 25 are covered with a cover 31. A stopper plate 26 is erected on the chain cover 15 at a position corresponding to the lock body 25 when the gate 1a is closed, and a lower portion of the stopper 26 is attached to the chain cover 15 with a screw tool 32. The stopper plate 26 has a U-shaped notch that opens upward at the top.
27 is provided, and when the lock body 25 descends, the lock body 25
Is designed to be locked in the notch 27. The width W _{1 of the} notch 27 is wider than the width W _{2 of the} lock body 25. The upper edges on both sides of the notch 27 of the stopper 26 are inclined edges 33.
Has become.

Then, when the motor 4 is driven, the drive sprocket 5 is rotationally driven, the chain 3 meshing with the drive sprocket 5 is driven by the drive sprocket 5, and a force is applied to move the gate 1a. When the motor 4 is driven in either forward or reverse rotation, the chain 3 is driven so as to move to the column 9 side, and the caster 2 is driven to roll and the gate 1a is closed. The gate 1a is closed as shown by the solid line in the figure. Conversely, when the motor 4 is rotationally driven, the chain 3 is driven so as to move in the direction away from the column 9 and is opened as shown by the imaginary line in FIG.
When the lock body 25 is lowered by the solenoid 24 when the gate 1a is closed, the lock body 25 is locked by being locked in the notch 27. At this time, the width of the notch 27 is wide, so the gate 1a
The lock body 25 is locked by being locked in the notch 27 even if the stop position of the is slightly displaced. When the lock body 25 is raised, the lock body 25 separates from the notch 27 and is unlocked so that the gate 1a can be freely opened and closed.

5 to 7 show another embodiment. In the case of this embodiment, the moving bar 34 which moves up and down by the solenoid 24 is projected to the outside of the drive unit A, and the lock body 25 is provided at the tip of the moving bar 34. When the lock body 25 descends, the lock body 25 is locked by being locked in the notch 27, and when the lock body 25 rises, the lock body 25 is unlocked.

In the above embodiment, the example of the gate 1a is described as an example of the sliding door 1, but any other sliding door structure can be applied.

[Advantage of the Invention] As described above, the present invention provides a stopper plate on the sliding door, and arranges a lock body that is vertically driven by a solenoid at a position corresponding to the stopper plate in a closed state of the sliding door, and the lock body descends. Since the lock body is provided on the U-shaped cutout stopper plate of the upper surface opening which is locked by the lock body, when the lock body is lowered, the lock body is locked by being locked in the cutout and the tock body rises. This unlocks the lock body from the notch, and since the width of this notch is wider than the width of the lock body, even if the sliding door stop position is slightly displaced, the lock body is notched. The lock / unlock operation is stable, and it can be used well even in outdoor sliding doors.In addition, the lower part of the back side near the side end opposite to the open / close end of the sliding door When the topper plate is attached and the solenoid is driven up and down, the lock body is placed at the position corresponding to the stopper plate when the sliding door is closed on the back side of the sliding door, and the lock body is covered with a cover. By providing the body and stopper on the lower part of the back side of the sliding door, the structure can be simplified and maintenance can be facilitated.
In addition, since the lock body is located on the rear side of the sliding door, the lock body cannot be touched from the front side of the sliding door, and the lock body is not operated or broken from the front side of the sliding door. Therefore, it is possible to prevent rainwater from falling on the surface, and it is possible to achieve a sufficient effect even when it is used outdoors.

[Brief description of drawings]

1 (a) is a plan view of an embodiment of the present invention, FIG. 1 (b) is a front view of the same, FIG. 1 (c) is a side view of the same,
FIG. 2 (a) is a side view of the above driving device, and FIG. 2 (b).
Is a cross-sectional view of the same as above, FIG. 3 is a perspective view showing the drive mechanism of the same as above, FIGS. 4 (a) and 4 (b) are front and side views of the same locking device, and FIG. FIG. 6 is a perspective view of the same locking device, FIG. 7 is an enlarged plan view of the same, FIG. 8 is a schematic front view of a conventional example, and FIG. 9 is a perspective view of an electric lock portion of the same. FIGS. 10 (a) and 10 (b) are explanatory views of the same operation as above, where 1 is a sliding door, 24 is a solenoid, 25 is a lock body, 26 is a stopper plate, and 27 is a notch.

Claims (1)

[Scope of utility model registration request] 1. When a stopper plate is attached to a lower portion of a rear side near a side end opposite to an opening / closing end of the sliding door, and a lock body driven up and down by a solenoid closes the sliding door on the rear side of the sliding door. The stopper plate is arranged at a position corresponding to the above stopper plate, the upper part of the lock body is covered with a cover, and the stopper plate is provided with a notch of an upper surface opening which is locked by the lock body when the lock body descends. A sliding door locking device that is wider than the width of the lock body.