JPH084538Y2 - Shutter locking device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention mainly relates to a locking device for an electric shutter, and more particularly to a locking device for a shutter in which slats are connected in a suspended state to form a curtain. It relates to the device.

(Prior Art) In the electric shutter, if a locking device is separately prepared, the motor is accidentally driven in a locked state and the curtain is pulled up, resulting in an accident in which the locked portion is damaged. Therefore, because of the relationship with the motor, when the shutter is closed, the electric drum of the curtain is braked so that the curtain cannot be wound on the take-up drum even if the curtain is pulled up, and the locking effect is obtained. ing.

However, in the shutter case, there is a free area where the curtain can bend freely between the winding drum and the upper end of the guide rail, and the guide rail that guides the curtain also allows some bending of the curtain. The curtain can be pulled up to some extent even when the shutter is closed because there is still room to operate, which is not preferable for crime prevention.

(Problems to be solved by the invention) Therefore, a mechanism is provided that allows the lock to be achieved at the lower part of the curtain by using the inside of the guide rail or the center pillar, and this is electrically controlled in relation to the motor of the winding drum. Although a locking device that can be used has been proposed, for example, in the case of a window shutter of a continuous window type, a new problem arises such that the center pillar needs to be large and wiring is difficult.

(Purpose of the Invention) The present invention has been made based on the above circumstances, and can be locked mechanically by using the weight of the curtain, and when the curtain is pulled up, it is automatically suspended by the curtain. An object of the present invention is to provide a shutter locking device having a simple structure that can be unlocked.

(Means for Solving the Problem) Therefore, in the shutter locking device according to the invention of claim 1, the slats (5) are connected to each other in a suspended state to form the curtain (4), and the curtain (4) is formed. 4) In the shutter in which the draining member (8) is arranged at the lower edge, the draining member (8) can be moved up and down within the cover portion (8a) connected to the curtain (4) and the cover portion (8a). The curtain (4) is composed of a bottom contact portion (8b), and a locking member (7) is projected from the lower part of the inner wall of the guide rail (6) for guiding the curtain (4) when moving up and down. The cover portion (8a) so that a key lever (9) that engages with the locking member (7) when in the closed position projects from the edge of the draining member (8) into the guide rail (6).
The key lever (9) is arranged on the cover (8
Via the interlocking mechanism (11), the bottom contact part (8b) hits the floor surface and goes up and down with respect to a) so that the bottom contact part (8b) projects from the edge of the draining member (8) into the guide rail (6). It is characterized in that it is connected to the bottom contact portion (8b).

Further, in the shutter locking device according to the second aspect of the present invention, the slats (5) are connected to each other in a suspended state to form a curtain (4), and the draining member (8) is provided at the lower edge of the curtain (4). ) Is provided in the shutter, the draining member (8) is connected to the curtain (4) with a cover portion (8a) and a bottom contact portion (8b) that can move up and down by hitting the floor surface within the cover portion (8a). And a locking member (7) protruding from the lower part of the inner wall of the guide rail (6) that guides the curtain (4) when it is moved up and down, and when the curtain (4) is in the closed position The key lever (9) whose front end engages with the stopper member (7) is provided with the water draining member (8).
Of the key lever (9) is rotatably attached to the cover portion (8a) via a pivot shaft (10) so as to project into the guide rail (6) from the end edge of the key lever (9). The bottom support part (8b) hits the floor surface and moves up and down with respect to the part (8a), so that the rack (11
b) moves up and down, and thereby the pivotally attached portion rotates via the gear interlocking mechanism (11), so that the water draining member (8) projects into and out of the guide rail (6) from the end edge of the draining member (8). It is characterized by being configured as follows.

(Operation) Therefore, when the shutter is closed, the weight of the curtain is applied to the draining member (8), the bottom contact part (8b) is pushed up, and the key lever (9) is lifted up in the cover part (8a). Protrudes into the guide rail (6) from the edge of the draining member (8) and engages with the locking member (7). Therefore, in this state, even if the curtain (4) is lifted, the locked state is It is secured under the curtain (4) and cannot be pulled up at all. Therefore, it is in a very preferable state for crime prevention. On the other hand, when the winding drum is wound up, the curtain (4) is lifted up and the load applied to the draining member (8) is removed, so that the bottom contact portion (8b) is lifted as the cover portion (8a) is lifted. Falls in the cover (8a), and this action causes the key lever (9)
Are retracted, and the engagement with the locking member (7) is released. Therefore, the locking device is automatically released even if it has no interlocking relationship with the motor for the winding drum. In this case, the locking member (7) is simply provided in the guide rail (or the center pillar), and therefore, there is no structural restriction in design.

Embodiment An embodiment of the present invention will be specifically described below with reference to the drawings. In the figure, reference numeral 1 is a shutter case, inside of which a winding drum 2 is pivotally supported, and an electric motor 3
It is designed to be driven by. The curtain 4 wound around the winding drum 2 is composed of a series of slats 5 connected in a suspended state to each other, and each of the slats 5 has a hook portion 5a at its upper portion and a lower portion thereof. Is provided with an engaging portion 5b that engages with the hook portion 5a, and a hook receiving portion 5c that receives the hook portion 5a is formed in the body portion. The curtain 4 is configured to be moved up and down along a guide rail 6 (or a central pillar), and the edge of the curtain 4 is inserted into the guide rail 6.
A mountain-shaped locking member 7 is disposed in the lower portion of the guide rail 6 at a position where it does not contact the edge of the curtain 4.

On the other hand, a draining member 8 is arranged at the lower edge of the curtain 4. The draining member 8 is composed of a cover portion 8a and a bottom contact portion 8b that is vertically moved inside the cover portion 8a,
A locking flange 8c is formed on the inside of the lower edge of the cover portion 8a, and correspondingly, a locking flange 8d is formed on the outside of the upper edge of the bottom contact portion 8b so that it can be suspended. Has become. The key lever 9 is attached to the pivot 10 on the cover portion 8a.
When the key lever 9 is rotated, the tip of the key lever 9 projects into the guide rail 6 from the edge of the draining member 8 and can be locked by the locking member 7. In order to rotate the key lever 9, the interlocking mechanism 11 that connects the key lever 9 and the bottom contact portion 8a is provided with a draining member 8.
It is prepared inside.

In this embodiment, the interlocking mechanism 11 is configured integrally with the key lever 9 and rotates around the pivot 10.
a, an intermediate gear 11c that meshes with the gear 11a and is pivotally supported by the cover portion 8a by a counter shaft 11b, and a rack 11d that meshes with the gear 11c and is attached to the bottom contact portion 8b. ing. Therefore, when the bottom contact portion 8b rises with respect to the cover portion 8a, the key lever 9 rotates via the interlocking mechanism 11 so that the tip can project from the edge of the draining member 8 into the guide rail 6, and , On the contrary, the cover part
When the bottom contact portion 8b is lowered with respect to 8a, the key lever 9 is reversed through the interlocking mechanism 11 and the tip is retracted into the draining member 8.

With such a configuration, when the load of the curtain 4 is applied to the draining member 8 when the shutter is closed, the bottom contact portion 8b ascends in the cover portion 8a while touching the floor surface, and the key lever 9 is pressed. Is projected and locked by the locking member 7. In this case, since the slat 5 has the hook portion 5a completely immersed in the hook receiving portion 5c of the upper slat 5, there is no clue to the curtain 4. Also, the curtain 4
Since it is applied to the water draining member 8 by hand, it is difficult to raise it by hand, and therefore, the closed state of the shutter is maintained and a sufficient crime prevention effect is exhibited.

When the curtain 4 is wound up by the winding drum 2 by the driving of the motor 3, the slats 5 are slid up to the position where the hook portions 5a are locked to the engaging portions 5b.
Pull out from the hook receiving part 5c of the
Even the lifting power extends. At this time, the cover portion 8a rises and the bottom contact portion 8b is relatively lowered in the cover portion 8a, so that the key lever 9 is retracted into the draining member 8,
The engagement with the locking member 7 is released. Then, in this state, the flange portion 8d is suspended by the flange portion 8c, and the curtain 4
Therefore, the draining member 8 is also raised.

In the above embodiment, the gear 11a, the intermediate gear 11c, and the rack 11d are used as the interlocking mechanism, but it goes without saying that a linking means or other known interlocking means may be used.

Further, the locking device of the present invention can be applied not only to the electric shutter but also to a manual type, and the technical scope of the present invention is not limited to the above electric shutter.

(Advantages of the Invention) As described above, according to the first and second aspects of the present invention, the draining member at the lower end of the curtain is composed of the cover portion and the bottom pad portion that can be moved up and down in the drain portion, and the bottom pad is provided when the shutter is closed. Utilizing the operation in which the part moves up and down by hitting the floor surface of the opening, the tip of the key lever is moved back and forth from the inside of the draining member into the guide rail (or the center pillar) through the interlocking mechanism inside the draining member, and the guide rail ( Or middle pillar)
Since the locking member protruding from the lower part of the inner wall is engaged and disengaged, locking and unlocking can be automatically realized in the regular opening and closing operation of the shutter, and the structure is mechanical and simple. The above effect can be obtained.

Further, in claim 2, a rack (11b) is provided so as to project from the bottom contact portion of the draining member, and when the bottom contact portion hits the floor surface of the opening and moves up and down when the shutter is closed, the rack (11b) is integrated with the rack (11b). It is moved up and down, and this up and down movement is transmitted to the pivotally attached part of the key lever (9) through a gear interlocking mechanism so that the tip end of the key lever (9) is engaged with and disengaged from a locking member below the inner wall of the guide rail (or center pillar). As a result, the projection length of the key lever into the guide rail (or center pillar) can be made sufficiently long, and the component part of the gear interlocking mechanism serves as a detent to prevent the key lever in the engagement closed position. It is possible to improve the reliability of locking when the shutter is closed without the inconvenience of naturally rotating and moving to the open position.

[Brief description of drawings]

FIG. 1 is a schematic front view showing an embodiment of the present invention, FIG. 2 is a partially cutaway front view of the same part, FIG. 3 is a longitudinal sectional view of the same part, and FIGS. It is a perspective view of the important section showing a locked state and an unlocked state at the time of curtain closing and curtain opening. 1 ... Shutter case, 2 ... Winding drum, 3 ... Motor, 4 ... Curtain, 5 ... Slat, 5a ... Hook part, 5b ... Engagement part, 5c ... Hook receiving part, 6 ... … Guide rails, 7… Locking members, 8… Draining members, 8a…
… Cover part, 8b …… Bottom contact part, 9 …… Key lever,
11 …… Interlocking mechanism, 11a …… Gear, 11c …… Intermediate gear, 11d
……rack.

Claims (2)

[Scope of utility model registration request] 1. A shutter in which slats (5) are connected to each other in a suspended state to form a curtain (4), and a draining member (8) is arranged at a lower edge of the curtain (4). (8) is composed of a cover portion (8a) connected to the curtain (4) and a bottom contact portion (8b) that can move up and down in the cover portion (8a), and when the curtain (4) is moved up and down. A locking member (7) is provided on the lower part of the inner wall of the guide rail (6) for guiding this, and a key lever (9) that engages with the locking member (7) when the curtain (4) is in the closed position is provided. The cover portion (8a) is projected from the edge of the draining member (8) into the guide rail (6).
The key lever (9) is arranged on the cover (8
Via the interlocking mechanism (11), the bottom contact part (8b) hits the floor surface and goes up and down with respect to a) so that the bottom contact part (8b) projects from the edge of the draining member (8) into the guide rail (6). A shutter locking device characterized by being linked to the bottom contact part (8b). 2. A shutter in which slats (5) are connected to each other in a suspended state to form a curtain (4), and a draining member (8) is arranged at a lower edge of the curtain (4). (8) is composed of a cover portion (8a) connected to the curtain (4) and a bottom contact portion (8b) that can move up and down by hitting the floor surface in the cover portion (8a),
A locking member (7) is provided at a lower portion of an inner wall of a guide rail (6) for guiding the curtain (4) when it is moved up and down, and the locking member (7) is provided when the curtain (4) is in a closed position. A key lever (9) whose front end engages with is freely rotatable through the pivot (10) to the cover portion (8a) so as to project from the end edge of the draining member (8) into the guide rail (6). The tip end of the key lever (9) is projected on the bottom contact part (8b) by the bottom contact part (8b) hitting the floor surface up and down with respect to the cover part (8a). The rack (11b) moves up and down, and thereby the pivotally attached portion rotates via the gear interlocking mechanism (11), so that the rack (11b) projects from the edge of the draining member (8) into the guide rail (6). A shutter locking device, which is configured to operate.