JP3013811B2 - Locking device for shutter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a locking device provided on an end surface of a slat constituting a shutter curtain, and more particularly, to a locking device for automatically locking when a shutter curtain is lowered and closed. The present invention relates to a locking device.

[0002]

2. Description of the Related Art When a shutter curtain, which constitutes an electric shutter or the like, is lowered to close a building opening or the like,
A locking device that automatically performs locking is provided. Conventionally, as this type of locking device, for example, Japanese Utility Model 3-4
No. 1039 is disclosed.

In this conventional locking device, each of the strip-shaped slats constituting a shutter curtain has a connection structure having a stroke slidable in the vertical direction, that is, each slat is connected to an upper portion thereof. When closing the building opening, the stroke is shortened and the upper and lower slats are in close contact with each other, and the stroke between the slats is used. In addition, a link member is provided on the end surface of each slat, and the link members are linked to each other.

These link members are a pair of long and short link rods. A long link member is pivotally connected to an end face of a lower slat, and a short link member is pivotally connected to an end face of an upper slat. The tip of the short link member is pivotally connected to the middle of the long link member, and when the stroke between the upper and lower slats is reduced, the long link pivotally attached to the lower slat by the pivot portion of each link member. The member protrudes.

[0005] A hook-shaped engaging piece is protruded inside a guide rail that supports the end of the shutter curtain and guides the ascending and descending, and the link member is engaged with the engaging piece to lock. It was like.

[0006]

However, in the above-mentioned conventional locking device, a pair of long and short link members are pivotally attached to end surfaces of a pair of upper and lower slats provided with a stroke, respectively. Are pivotally connected to each other, the upper and lower slats are effectively connected to each other in the stroke direction at the connecting portion, but are bent at the connecting portion, that is, the connection between the other slats. The conventional locking device has a disadvantage that the slats cannot be bent in the front and back directions as in the case of the slats. Is provided only on the baseboard portion of the lock device, and there is a disadvantage that the mounting position of the locking device is limited and there is no flexibility.

In order to solve the above-mentioned problems, the present invention is directed to a locking device provided on an end face of a slat. It is an object of the present invention to provide a locking device that can be stored in a case without any trouble.

[0008]

Next, means for solving the above problems will be described with reference to the drawings corresponding to the embodiments. The locking device for a shutter according to the present invention includes a strip-shaped slat member 2 that forms a part of the shutter curtain 26 and is connected to the shutter curtain 26. Locking slat member 8 connected between strokes so as to be able to move forward and backward
An engaging portion 23 disposed at a longitudinal end 8b of the locking slat member 8; and a pivotally rotatably supported at a longitudinal end of the slat member 2; It has a claw piece 20 extending in the direction of the stroke of the locking slat member 8 orthogonal to the longitudinal direction of the slat member 2 and connected to the slat member 2 in the direction opposite to the locking slat member 8. A key piece 4 having an engagement piece 21 meshed with the engagement portion 23; and a guide rail 6 provided in the guide rail 6 corresponding to the key piece 4 in the guide rail 6 for guiding the movement of the shutter curtain 26. And a key receiver 7 that engages with the claw piece 20 of the key piece 4.

According to such a configuration, when the shutter curtain 26 is closed, the slat member 2 moves between the strokes and approaches the locking slat member 8, and approaches.
Since the locking piece 21a of the key piece 4 is engaged with the engaging portion 23 of the locking slat member 8, the key piece 4 is rotated.

The tip 20a of the claw 20 of the key piece 4 protrudes in the longitudinal direction of the slat member 2, that is, protrudes in the depth direction in the guide rail 6, thereby engaging with the key receiver 7 in the guide rail 6. Therefore, it is locked.

Further, the shutter curtain 26 in a closed state is provided.
Is released, the slat member 2 moves before the locking slat member 8, thereby increasing the stroke distance between the locking slat member 8 and the slat member 2. The key piece 4 is rotated by the engagement between the engaging portion 21 and the engaging portion 23, and the claw piece 20 of the key piece 4 returns to the original position from the protruding state. The shutter curtain 26 is opened without the key 20 being engaged with the key receiver 7.

[0012]

FIG. 1 is an exploded perspective view showing an embodiment of a shutter locking device according to the present invention, and FIGS. 2 and 3 are schematic front views illustrating the operation of the shutter locking device. is there.

The locking device 1 for a shutter according to the present invention comprises a slat member 2, a locking slat member 8, an engaging portion 23,
The key piece 4 and the key holder 7 are roughly constituted.

In this embodiment, a large number of slats 27 formed in a strip shape are provided in a shutter device having upper and lower edges connected to each other to form a shutter curtain 26, and the shutter curtain 26 is moved up and down. The opening and closing of the building is opened and closed, the shutter locking device 1 is connected and provided so as to form the lowermost edge of the shutter curtain 26, and the shutter curtain 26 is closed and locked by descending. It has become so.

First, the slat member 2 is connected to the slat body 2.
a and a key support member 3.

In this embodiment, the slat body 2a is
The slat 2 which is formed in a strip shape and is long in the left-right (horizontal) direction and constitutes the shutter curtain 26
7 is a bit shorter than that of FIG.
It is formed shorter by a length substantially equal to the width of 0.

As shown in FIG. 1, the slat body 2a has a front member 13 and a back member 14, and a reinforcing plate 15 is provided substantially horizontally between these members 13 and 14, and a hollow portion 16 is formed. And a substantially U-shaped section 17 opening downward are formed in a continuous shape.

An opening edge which is the lowermost edge of each of the members 13 and 14 has a supporting edge 13 which is opposed to and protrudes inward.
a, 14a are formed, respectively, and the U-shaped portion 17 deeper than the support edges 13a, 14a corresponds to the stroke of the locking slat member 8 described later. Also, as shown in FIGS.
The lower edge portion at the end of “a” has a relief 9 cut out in a rectangular shape.

Further, a curled portion 2b extends from the upper edge of the slat body 2a and is connected to the slat 27 of the shutter curtain 26.

The key support member 3 comprises a pair of front and back bracket plates 10, 10 formed in a substantially L-shape by a hanging portion 10a and an insertion portion 10b, and an insertion portion 10b of the bracket plates 10, 10. And the top wall plate 11 that connects the upper edges of the upper and lower portions. The insertion portion 10b is formed in a substantially U-shape that opens downward. It extends in the direction.

The key support member 3 is attached to the insertion portion 10
b is inserted into the hollow portion 16 of the slat member 2 from the end of the slat body 2a and is fixed to the slat body 2a.

The hanging portion 10a of the key support member 3
Is protruded in the longitudinal direction from the end of the slat main body 2a, and the length of the slat member 2, which is the length of the slat main body 2a including the protruding length, is substantially equal to the length of the slat 27 of the shutter curtain 26. They are set to be the same (see FIG. 2), and the tip of the hanging part 10a projects below the lower edge of the slat body 2a as shown in FIG.

The key support member 3 is provided on the slat body 2a.
A shaft fixing hole 12 penetrating through the bracket plates 10, 10 is formed at a tip end of a hanging part 10 a projecting downward from the end face of the bracket 10 and extending downward.
The regulating pin 5 is provided substantially vertically above the support shaft fixing hole 12. In addition,
In the present embodiment, the position of the support shaft fixing hole 12 is set such that its center is substantially located on an extension of the lower edge of the slat main body 2a, as shown in FIG.

Next, the locking slat member 8 has a hollow rectangular cross section formed substantially the same length as the slat body 2a of the slat member 2. A skirting board located at the lower end is configured.

As shown in FIG. 1, this locking slat member 8 is provided on an upper plate 8a with an extending plate 24 extending vertically upward.
a and a hook 24b provided horizontally at the tip of the extension plate
A connecting piece 24 having a substantially T-shaped cross section protrudes upward.

In this locking slat member 8, the connecting piece 24 is connected to the front member 1 of the slat body 2a of the slat member 2.
3 and the back member 14, and the hooks 24b are hooked on the supporting edges 13a and 14a of the members 13 and 14, respectively.
It is suspended and connected.

In this connection state, the slat member 2
The locking slat member 8 is in a suspended state, and slides up and down with the extension length of the extension plate 24a of the connecting piece 24 as a stroke, and is freely movable between the strokes. 2 is approaching and leaving.

The connecting piece 24 has an end face 24c.
However, on the end 8b side of the locking slat member 8, as shown in FIG. 1, it is not formed along the end surface 25 of the locking slat member 8, but is slightly shorter in the longitudinal direction of the locking slat member 8. And an upper surface plate 8a at an end portion of the locking slat portion 8 serving as a lower surface of the void portion 22 is engaged with a key piece 4 described later.
It is 3.

Next, the key piece 4 includes a claw piece 20 and an engagement piece 21. As shown in FIG. 1, the claw piece 20 is formed in a substantially rectangular plate shape in which both upper and lower ends 20 a and 20 b are notched at an acute angle, and a hole 18 is formed substantially in the center.

The engaging piece 21 is, as shown in FIG.
It protrudes so as to be substantially perpendicular to the outside of the halfway portion where the zero hole 18 is provided, and is provided integrally with the claw piece 20.

The engaging piece 21 is provided with a locking piece 21a bent so as to protrude from the front end thereof, and the locking piece 21a extends along the claw piece 20 to the lower front end 20b. The locking piece 21a
The engaging recess 21 b is formed by the side edge of the engaging piece 21 and the side edge of the claw piece 20.

The hole 18 of the claw piece 20 has a fixed shaft 19
The key support member 3 is attached to a support shaft fixing hole 12 penetrating the bracket plate 10 of the key support member 3 by the fixed shaft 19, and is disposed so as to be rotatable with respect to the key support member 3. .

The key piece 4 is normally disposed such that the tip 20a of the claw piece 20 is vertically upward along the hanging part 10a of the key support member 3, as shown in FIG. That is, it is disposed so as to extend in the upward direction perpendicular to the longitudinal direction of the slat member 2 and opposite to the locking slat member 8 connected to the slat member 2.
Then, the regulating pin 5 provided on the key support member 3 abuts, and the engaging piece 21 extends in a substantially horizontal direction orthogonal to the claw piece 20.

The engaging piece 21 is, as shown in FIG.
The locking slat member 8 is located in the gap 22, the locking piece 21 a of the engaging piece 21 faces the end face 24 c of the connecting piece 24 of the locking slat member 8, and the locking piece 2
The tip of 1a faces the upper surface plate 8a of the locking slat member 8.

The claw piece 20 of the key piece 4 is normally used for the slat 2 constituting the shutter curtain 26.
In this state, the vertical state is maintained by the lower end 20b of the claw 20 of the key piece 4 and the center of gravity of the engaging piece 21 extending to this claw 20. It has become.

Next, as shown in FIG. 2, the key receiver 7 is formed in a substantially triangular shape with an upper surface being an inclined surface and a lower surface being a substantially horizontal surface, and protruding from the guide rail 6. In the present embodiment, the key receiver 7 moves the slat member 2 at a position close to the lower end of the guide rail 6 from the floor surface.
And the locking slat member 8 are set to a length substantially equal to the total vertical dimension not including the stroke.

Next, the operation of the shutter locking device 1 of the present embodiment configured as described above will be described.

First, the shutter curtain 26 descends,
When closed, the locking slat member 8 is suspended from the slat member 2 by its own weight, and the claw pieces 20 are in a vertical state (see FIG. 2).

When the shutter curtain 26 further descends, the locking slat member 8, which is the lowermost end of the shutter curtain 26, first lands, as shown in FIG.

As the shutter curtain 26 continues to descend, the locking slat member 8 and the slat member 2
When the stroke distance between the slat members 2 and 8 is reduced and the slat members 2 and 8 approach each other, the locking piece 21a of the key piece 4 is lowered together with the slat member 2 and the upper plate 8 of the locking slat member 8 is lowered.
a, and at the same time, the position of the fixed shaft 19 of the claw piece 20 is lowered with respect to the locking slat member 8, so that rotation starts around this fixed shaft 19 and the engaging portion 23 of the locking slat member 8 On the other hand, the engagement recesses 21b of the engagement pieces 21 come into engagement with each other, whereby the key piece 4 rotates counterclockwise in FIG.

When the slat member 2 closes its stroke with respect to the locking slat member 8 and the lower edge of the slat member 2 comes into contact with the upper surface plate 8a of the locking slat member 8,
As shown in FIG. 3, the key piece 4 includes an engagement piece 21 and an engagement portion 23.
The tip 20a of the claw piece 20 protrudes in the longitudinal direction of the slat member 2, that is, protrudes in the depth direction in the guide rail 6, thereby locking.

At the time of locking, the lower end 20b side of the claw 20 of the key piece 4 enters the hollow portion below the upper surface plate 8a of the locking slat member 8.

In this state, even if the shutter curtain 26 is lifted to open (raise), the guide rail 6
The claw piece 20 of the key piece 4 comes into contact with the key receiver 7 from below, and the key piece 4 is kept in a protruding state by the engagement of the engagement piece 21 and the engagement portion 23. The upper edge of the locking piece 21a of 21 is in contact with the vertical edge of the hanging portion 10a of the bracket plate 10 to maintain the meshing state and restrict the rotation of the key piece 4, so that lifting can be performed. It is locked by being prevented (see FIG. 3).

Next, the shutter curtain 26 in the closed state is set.
Is opened, the shutter curtain 26 rises so as to be lifted upward, so that the slat member 2 rises before the locking slat member 8 and the stroke distance between the locking slat member 8 and the slat member 2 Opens,
The distance between the two slat members 2, 8 is increased by the stroke.

Then, the engaging piece 21 of the key piece 4 and the engaging portion 23
As a result, the key piece 4 rotates clockwise in the drawing, whereby the claw 20 of the key piece 4 shifts from the inclined protruding state to the vertical state (see FIG. 2). In this vertical state, the tip 20
a contacts the restriction pin 5.

Then, the claw piece 20 of the key piece 4 returns to the original state along the hanging part 10a of the key support member 3,
The shutter curtain 26 continues to rise, and the claw 2 of the key 4
0 does not engage with the key receiver 7, and the shutter curtain 26 is opened.

Therefore, according to the locking device for a shutter constructed as described above, the slat member 2 and the locking slat member 8 have a connection structure having a stroke, and only one of the slat members 2 is rotated by the key piece 4. Fixed shaft 19 for supporting
Can be attached to the slat member 2
The connection state between the slat member 8 and the locking slat member 8 is the same as that in the normal slat connection state, that is, the slat can be bent in the front and back direction at the time of winding. Is not limited, and a degree of freedom can be obtained.

Further, the key piece 4 is projected and brought into the locked state by engaging with the engaging portion 23 of the locking slat member 8 approaching by a stroke and the engaging piece 21 of the key piece 4. The connection state of the slat member 2 and the locking slat member 8 is the same as that of the normal slat connection state as described above. The mounting position with respect to 26 is not limited,
The degree of freedom can be obtained.

In view of the above, the key piece 4 to be supported
Is provided on only one slat member 2, and as shown in FIG. 4, when the shutter curtain 26 is wound up, the two slat members 2 and 8 are bent and accommodated in the shutter case without any trouble. Become like

In the above-described embodiment, the locking device 1 is provided at the lowermost end of the shutter curtain 26. However, the locking device 1 may be provided at an intermediate position of the shutter curtain 26. It is good also as a structure arrange | positioned in multiple places in arbitrary positions.

Further, in the above-described embodiment, the shutter locking device 1 has been described as an example provided on only one side of the slat member 2, but it may be provided on both ends of the slat member 2, respectively.

Further, in the above-described embodiment, an example has been described in which the shutter curtain 26 is closed when the shutter curtain 26 descends and is disposed in the shutter device configured to perform locking. However, the shutter curtain 26 is closed when the shutter curtain 26 rises. The above effect can be obtained even if the shutter device having the above configuration is provided. In this case, an urging member such as a plate spring or a coil spring for separating the slat member 2 and the locking slat member 8 from each other may be provided to maintain the stroke.

In the above-described embodiment, an example has been described in which the shape of the key receiver 7 provided in the guide rail 6 is formed to protrude in the guide rail 6. The shape may be formed in a concave shape, or may be formed as a key holder by forming a through hole in the guide rail 6.

Further, the configuration of the engaging piece 21 of the key piece 4 and the engaging portion 23 of the locking slat member 8 is such that the engaging piece 21 side is an engaging concave portion 21b, and the engaging portion 23 side is a locking slat member. 8
However, the configuration of the engagement piece 21 and the engagement portion 23 is not limited to this, and may be, for example, a structure such as a rack and a pinion. 4 may be configured to form an engaging piece made of a pinion-shaped partial gear, and to form the locking slat member 8 with an engaging portion 23 made of a rack-shaped tooth.
In contrast to the structure in which the locking slat member 8 slides substantially straight between the strokes with respect to the slat member 2, the key piece 4
However, the same effect as described above can be obtained as long as it engages with and rotates.

[0055]

As described above, according to the locking device for a shutter of the present invention, the slat member and the locking slat member have a connecting structure having a stroke, and only one of the slat members has a rotatable key piece. In addition to the configuration that is provided, the configuration in which this key piece is projected and locked
Locking can be automatically performed when the shutter curtain is closed because the engagement is performed by the engagement portion of the locking slat member approaching with the stroke and the engagement piece of the key piece, and the shutter can be automatically locked without performing manual operation. The effect of closing and locking the curtain is obtained.

Further, the slat member and the locking slat member have a connection structure having a stroke, and a rotatable key piece is provided only on one of the slat members, and the key piece is projected to be locked. Since the configuration is performed by engagement with the engaging portion of the locking slat member approaching by a stroke and the engaging piece of the key piece, the connection state between the slat member and the locking slat member is similar to the normal slat connection state, That is, the slat can be bent in the front and back directions during winding, and the mounting position of the slat (slat member) serving as the locking device with respect to the shutter curtain is not limited. Since it is good, the effect that the degree of freedom of the arrangement position of the locking device on the shutter curtain can be obtained is obtained.

Further, from the above description, since the key piece to be pivotally supported is provided with only one slat member 2, when the shutter curtain is wound, the two slat members are bent to obstruct the inside of the shutter case. The effect of being able to be accommodated without it is obtained.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing an embodiment of a locking device for a shutter according to the present invention.

FIG. 2 is a schematic front view illustrating the operation of the shutter locking device.

FIG. 3 is a schematic front view illustrating the operation of the shutter locking device.

FIG. 4 is a schematic side sectional view illustrating the operation of the shutter locking device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Locking device 2 ... Slat member 4 ... Key piece 6 ... Guide rail 7 ... Key holder 8 ... Locking slat member 8b ... End part 20 ... Claw piece 21 ... Engagement piece 23 ... Engagement part

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) E05B 65/02 E06B 9/80-9/90

Claims (1)

(57) [Claims] 1. A strip-shaped slat member which forms a part of a shutter curtain and is connected thereto, and is connected to the slat member so as to advance and retreat between predetermined strokes in the same direction as the opening and closing direction of the shutter curtain. A locking slat member to be provided; an engaging portion provided at a longitudinal end of the locking slat member; and a pivotally rotatably supported at a longitudinal end of the slat member. The locking slat member has a claw extending in a direction opposite to the locking slat member along a direction of a stroke of the locking slat member which is orthogonal to a longitudinal direction of the slat member and connected to the slat member. A key piece having an engagement piece that meshes with a portion; and a claw of the key piece provided in a guide rail corresponding to the key piece in a guide rail for guiding movement of the shutter curtain. Shutter locking device, characterized in that it comprises a and a key receiving engaging with.