JP2545130Y2 - Electric slat shutter push-up prevention device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shutter slat push-up preventing device for preventing a shutter slat from being pushed up and opened when an electric shutter is fully closed.

[0002]

2. Description of the Related Art Conventionally, since a manual shutter is locked by a key when fully closed, there is no danger that the manual shutter will be pushed up and opened by human power. However, in the case of an electric shutter, if you forgot to unlock the key and opened it electrically, the locking mechanism and others could be destroyed immediately and damage could be serious, so locking with the fully closed key could not be performed.

[0003]

As a result, in the case of the electric shutter, which is not locked when fully closed, the one installed at the opening of the building with a small frontage is relatively light, so that it is manually operated from below. They could be easily invaded because they would be revealed when pushed up, and there was a risk of the inside being damaged or being stolen, and they were easily targeted especially at night, on Sundays, and on holidays, and had security problems. In this case, the present invention aims to provide an effective and appropriate shutter slat push-up prevention device for solving the above-mentioned problems.

[0004]

The above object can be attained by the present invention adopting the following novel characteristic constitution means. That is, the feature of the present invention is that a plurality of slat plates and a slat plate and a seat plate are connected to each other so as to be able to extend and contract in a predetermined manner. At the lower end of the suspension arm whose upper end is pivotally connected to the shaft, a locking suspension body that pivotally supports the head so that it can swing freely with a pair of front and rear mound-shaped locking pawls back-to-back is connected to the lower end of the suspension arm. A wedge-shaped interrupting head is formed upright at a top end of a stop plate protruding from both side edges of a predetermined lower slat plate or a seat plate so as to be able to interrupt between the pair of lock claws, and the electric slat is formed. The front and rear locking pawls, which are opened by the interrupting head by the interrupting head, are engaged and locked before and after each required position of the lower part of the left and right grooved guide rails that guide the both ends of the shutter. Shutter slat pushing up through a locking hole A prevention device.

[0005]

According to the present invention, since the above-mentioned means is taken, when the lower part is pushed up by the human power from the outside in the fully closed state of the electric slat shutter, the connection part of the slat plates from the lower part above the pushing action force point is formed. Since the play is shortened and the electric slat shutter bends back and forth, the interrupting head is lifted between the front and rear locking claws that normally faced down, so the rear locking claw opens forward and backward, but the groove The guide rail rises inside the grooved guide rail in a half-open state while being regulated by the wall of the guide rail. It stops and locks the shutter slats so that it cannot be pushed up any more, so it is impossible to break in.

[0006]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. FIG.
FIGS. 2 to 2 show the main parts of this embodiment when fully closed, respectively. FIG. 2 is a longitudinal side view taken along line II in FIG. 2 and FIG. 1 is a front view taken along line II-II in FIG. FIG. 3 is a vertical sectional side view taken along line III-III in FIG. 1 showing a main part of the embodiment. In the drawing, A is a shutter slat push-up preventing device of the present embodiment, and B is a play provided with a plurality of slat plates 1 and connecting portions 1a and 2a of the slat plates 1 and the seat plate 2 with a predetermined up-and-down telescopic play. The electric slat shutter 3, which is connected to the slat plate 1, is a suspension shaft whose base end is cantilevered and fixed to a bracket 4 which is fixed to a back surface near both side ends of the slat plate 1.

Reference numeral 5 denotes a side H-shape in which the lower end of a suspension arm 6 pivotally connected to the suspension shaft 3 so as to be swingable and rotatable is inserted between the upper ends 5a and 5b of the side fork, and is rotatably connected by a pivot pin 7. A pair of front and rear locking claw 8, 9 heads 8a, 9a inserted back to back between side forked portions 5c, 5d.
A pair of front and rear vertical bearing guide holes 1 extending in the fore-and-aft side portions 5c and 5d corresponding to the heads 8a and 9a, respectively.
It is mounted so as to be swingable and rotatable by being supported by rotating pins 14 and 15 extending over 0 and 11 and 12 and 13 respectively.

Reference numeral 16 denotes set screws 17, 18 on both ends of the seat plate 2.
The top end of the stop plate 19 attached at the upper end is erected at the upper end of the protruding edge, and the top end facing the front and rear lock claws 8 and 9 so as to be able to be inserted from below is a side wedge-shaped interruption head. The groove-shaped guide rails 21 and 22 having front and rear walls 20a and 20b are provided at predetermined positions in front and rear of the lower part of the groove-shaped guide rail 20, and the front and rear locking claws 8, which are opened by the interrupting head 16 and opened forward and backward. 9 is a lock hole for engaging and locking the claw ends 8b, 9b, and C is a floor. In this embodiment, the slat 1 is provided between the edges of the slat 1 and the seat plate 2.
It may be provided at all between the edges of the slat 1 and the slat 1. In that case, the positions of the lock holes 21 and 22 are shifted upward by a required amount and penetrated.

Since the specification of this embodiment is such a specific embodiment, its operation will be described with reference to the drawings. When the electric slat shutter B moves up and down, and is fully opened and fully closed, the slats 1 and the seat plate 2 and the slats 1 and 1 are in an extended state due to the play of the overlapping connecting portions 1a and 2a. The relative positions of the interrupt head 17 and the front and rear lock claws 8 and 9 in the example are in the state shown in FIGS.

FIG. 1 with electric slat shutter B fully closed
When the seat plate 2 is pushed up by human power from the outside from the state of FIG. 2, the overlapping connecting portions 1a, 2a of the seat plate 2 and the slats 1 and the slats 1 and the slats 1 are formed.
And the electric slat shutter B bends back and forth, so that the suspension shaft 3 and the interruption head 1
6, the distance from the top end 16a is short, and finally the interrupt head 1
6 is inserted between the front and rear locking claws 8 and 9 from below as shown in FIG.
The front and rear walls 20a, 2 of the groove-shaped guide rail 20 are lifted up by guiding both ends of the pivot pins 14, 15 to 1, 12 and 13, respectively.
The claw ends 8b and 9b of the front and rear locking claws 8 and 9 of the half-spread legs are locked by the lock holes 21 and 22, respectively.
As a result, the regulation of the front and rear walls 20a and 20b is released and the legs are fully opened and locked as shown in FIG.

When the seat plate 2 is locked in this manner, the seat plate 2 does not rise no matter how much it is pushed up from below. When the lifting force is released, the play of the overlapping connecting portions 1a and 2a is extended by the own weight of the electric slat shutter B, and the entire bending is eliminated, so that the space between the suspension shaft 3 and the top end 16a of the interruption head 16 is also in the original state. Then, the interruption head 16 comes out of the space between the front and rear locking claws 8 and 9 and returns to the state shown in FIGS. 1 and 2.

[0012]

As described above, the present invention does not require any power because it is a mechanical type having a simple structure, is less durable, has high durability, and is inexpensive and easily attached to an existing electric slat shutter. Exhibits excellent practicality and usefulness such as enhancing the effect.

[Brief description of the drawings]

FIG. 1 shows a main part of an embodiment of the present invention when fully closed.
FIG. 2 is a vertical sectional view taken along line II.

FIG. 2 is a vertical sectional front view taken along line II-II in FIG.

FIG. 3 is a vertical sectional side view of a part corresponding to the line III-III in FIG. 2, showing a main part of the embodiment of the present invention in which the lock is pushed up and locked.

[Explanation of symbols]

 A: electric slat shutter push-up prevention device B: electric slat shutter C: floor 1: slat plate 1a, 2a: connecting part 2: seat plate 3: suspension shaft 4: bracket 5: locking suspension 5a, 5b: upper end of side bifurcation 5c, 5d: Side bifurcation 6: Suspended arm 7: Pivot pin 8, 9: Locking claw 8a, 9a: Head 8b, 9b: Claw end 10, 11, 12, 13: Bearing guide elongated hole 14, 15 ... Rotating pin 16 ... Interrupting head 16a ... Top end 17, 18 ... Set screw 19 ... Stop plate 20 ... Channel guide rail 20a ... Front wall 20b ... Rear wall 21, 22 ... Lock hole

Claims (1)

(57) [Scope of request for utility model registration] 1. An electric slat shutter in which a number of slat plates and a slat plate and a seat plate are connected to each other so as to be able to expand and contract in a predetermined manner.
At the lower end of the suspension arm whose upper end is pivotally connected to the suspension shaft, a locking suspension body that pivotally supports the head with a pair of front and rear mound-shaped lock claws back to back is swingably connected to the suspension arm. At the upper end of a slat plate or a stop plate edge protruding from both side edges of the seat plate lower than a predetermined plate, a top end which can be inserted into the pair of lock claws so as to be able to be inserted freely is formed upright with a side wedge-shaped interrupt head. The claw ends of the front and rear locking claws, which are interrupted by the interrupting head and opened forward and backward, are engaged before and after each required portion of the lower portion of the left and right grooved guide rails that guide both sides of the electric slat shutter. Shutter slat push-up prevention device characterized by penetrating a lock hole for locking