JPH0953376A - Locking structure of slat curtain in shutter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the dropping-out of a slat from a guide rail by providing, on the end part of the slat moved within the guide groove of the guide rail, a regulating claw piece to be engaged with the groove of the guide groove when a slat curtain is distorted. SOLUTION: In general operation, both end parts 2a of the slat 2 of a slat curtain 1 are guided within the guide grooves 9 of lateral guide rails 8 to open and close the slat curtain 1. When an external force such as wind is added to the slat curtain 1 laid in the closed state to distort the slat curtain 1, the slat 2 is curved, and the tip edge 6 of a regulating claw piece 3 provided on the end part 2a of the slat 2 is fitted in and engaged with the groove 14 by the engaging protruding piece 13 within the guide groove 9 of the guide rail 8.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for preventing a slat curtain from coming off a guide rail due to wind pressure or the like.

[0002]

2. Description of the Related Art When a slat curtain of a shutter is in a closed state, the slat curtain is bent by an external force such as wind to prevent the side edges of the slat curtain from coming off and coming off from a guide rail for guiding the slat curtain up and down. Heretofore, various known techniques have been known.

For example, in the structure disclosed in Japanese Utility Model Laid-Open No. 62-85688, the ends projecting into the guide rails are bent into L-shapes at both ends of the slats constituting the slat curtain. The retaining claws are provided, and when the slat curtain is bent, the retaining claws are engaged with the protrusions on the inner edge of the guide rail to prevent the retaining.

[0004]

However, in the above-described conventional retaining structure, it is premised that the guide rail is not deformed. However, when the guide rail is made of a thin aluminum mold material, the slats are not used. The guide rail may be deformed due to the bending of the curtain.

That is, due to the bending of the slat curtain, the width of the opening groove of the guide rail is expanded, and the protrusion in the guide rail and the retaining claw of the slat curtain are not engaged with each other, so that the slat curtain is removed from the guide rail. There was a problem of getting out.

Therefore, in order to solve the above problems, the present invention prevents the slat curtain from slipping out of the guide rail when the slat curtain bends due to an external force such as wind and the like. It is intended to provide a structure.

[0007]

[Means for Solving the Problems] Next, means for solving the above problems will be described with reference to the drawings corresponding to the embodiments. The slat curtain retaining structure in the shutter of the present invention has an engagement connecting portion 2 formed at upper and lower edges.
At least one opening edge portion 10 of the guide groove 9 for guiding the lifting and lowering of the slat curtain 1 composed of a plurality of slats 2 connected to each other by 1, 22 extends from the opening of the guide groove 9 to the back of the guide groove 9. An engaging strip 13 extending in the direction is provided, and the engaging strip 13 and the side wall of the guide groove 9 form a groove 14 that opens in the depth direction of the guide groove 9, and has a substantially G-shaped cross section. The guide rail 8 is formed in the shape of a circle, and the end 2a of the slat 2 that moves in the guide groove 9 of the guide rail 8 is provided. The guide strips 9 extend in a direction substantially opposite to each other in a direction opposite to the extending direction of the compound strip 13.
It is characterized in that it is provided with the regulating claw piece 3 which can be engaged and disengaged with the groove 14 in the inside.

With this structure, when the slat curtain 1 is bent by an external force such as wind, the regulating claw piece 3 provided at the end 2a of the slat 2 of the slat curtain 1 is formed.
And the groove 14 in the guide rail 8 are securely engaged with each other, and the slat curtain 1 does not slip out of the guide rail 8.

[0009]

1 is an exploded perspective view showing an embodiment of a retaining structure for a slat curtain in a shutter according to the present invention, and FIG. 2 is a plan sectional view of the same.

First, the shutter slat curtain 1
Is composed of a plurality of laterally elongated strip-shaped slats 2, and the curls 21 and 22 as engagement connecting portions formed at the upper and lower edge portions of each slat 2 are rotatable with respect to each other. The upper and lower parts are continuously connected so as to become.

A regulating claw piece 3 is provided at both left and right ends 2a of a predetermined number of the connected slats 2. Here, the predetermined number of sheets provided with the regulating claw pieces 3 means the plurality of slats 2 in the number of sheets that do not form adjacent winding layers in each winding layer in a state where the slat curtain 1 is wound. Is preferred.

The restricting claw piece 3 is made of, for example, a synthetic resin mixed with glass fiber, and as shown in FIGS. 1 and 2, the base portion 4 and the claw portion 5 are integrally formed at a right angle. In addition to being formed in a substantially L shape, the tip edge 6 of the claw portion 5 is further bent at a right angle to form a hook shape.

The regulating claw piece 3 is provided by fixing the base 4 to the end 2a of the slat 2 by a fixing means 7 such as rivets, staples, adhesion or welding. In the fixed state, the claw portion 5 is fixed so as to project from the surface of the slat 2 that is on the indoor side, and the tip edge 6 is set so as to be in the center direction of the slat 2. In the present embodiment, the claw portion 5 is formed thicker near the base portion 4.

Next, a pair of left and right guide rails 8 for guiding the elevating and lowering of the slat curtain 1 are erected vertically on the left and right edges of the opening of a building or the like, and as shown in FIG. It is opened and serves as a guide groove 9, which is formed in a substantially U-shaped cross section.

Also, mounting groove portions 12 are formed on the inner surfaces of the guide rails 8 facing the opening edges 10 and 11 of the guide groove 9 to prevent rubbing and sound insulation when the slat curtain 1 moves up and down. Mohair (not shown) and the like are provided.

Further, the guide groove 9 of the guide rail 8
An engaging strip 13 that is integral with the mounting groove 12 is provided on the one opening edge 10 that is the indoor side.

The engagement strip 13 is formed in the guide groove 9 so as to extend from the opening side of the guide groove 9 toward the back of the guide groove 9 and also to the guide rail 8.
Are formed continuously along the longitudinal direction.

A narrow groove 14 opening in the depth direction is formed on the engaging strip 13 and the inner wall of the guide groove 9.

Therefore, in the slat curtain retaining structure constructed as described above, both ends 2a of the slat curtain 1 are guided into the guide grooves 9 of the left and right guide rails 8 during normal operation, as shown in FIG. Then, the ascending / descending (opening / closing) operation is performed. At this time, the leading edge 6 of the regulating claw piece 3 of the slat curtain 1 and the engaging strip 13 of the guide rail 8 do not engage with each other in a substantially facing positional relationship such that they extend in opposite directions. The slat curtain 1 moves in the guide rail 8.

When an external force such as wind is applied to the slat curtain 1 which is in the closed state and the slat curtain 1 is bent and bent, the slat 2 is curved and the end portion of the slat 2 is bent as shown in FIG. The leading edge 6 of the regulating pawl piece 3 provided on the 2a enters into the groove 14 by the engaging strip 13 in the guide groove 9 of the guide rail 8 and engages with each other.

According to this retaining structure, since the restricting claw piece 3 and the engaging strip 13 are each formed in a hook shape in section,
Since the slat and the guide rail 8 are securely engaged with each other so that the slat and the guide rail 8 are engaged with each other, even if the slat curtain 1 is bent by an external force such as wind, the end portion 2a of the slat 2 is separated from the guide rail 8. Prevents you from getting out.

In particular, even when the amount of deflection of the slat 2 becomes large when the wind is strong and the side wall of the guide rail 8 is also deflected (see FIG. 3), the regulating claw piece 3 of the slat 2 is formed.
Engages in the groove 14 of the engaging strip 13, so that it is possible to completely prevent the slat 2 from coming out of the guide rail 8.

Further, since the regulating claw piece 3 can be constructed without largely protruding in the thickness direction of the slat 2,
It is possible to configure the retaining structure without expanding the width of the guide rail 8, and it is possible to save the space for the guide rail mounting area on the building side.

In the above-described embodiment, the restricting claw piece 3 is described as an example of a structure separate from the slat 2, but the restricting claw piece 3 may be integrated with the slat 2.

That is, as shown in FIG.
The end portion 2a of the guide rail 8 is formed to extend like a wing, and the extended wing end portion 2a is bent so that the leading edge 6 is substantially opposite to the extending direction of the engaging strip 13 in the guide rail 8. It is formed in a substantially hook shape so as to extend in the direction, and is used as the regulating claw piece 3. In addition, as shown in FIG. 5, the plate surface at the end 2a of the slat 2 is punched by leaving a side edge, as shown in FIG. 5, so that the free end edge side tip edge 6 is projected from the plate surface. It is also possible to bend and form the tip edge 6 to form the regulating claw piece 3 by further bending.

Further, in the above-described embodiment, the length of the restricting claw piece 3 protruding from the edge of the slat 2 in the length direction (left-right width direction) of the slat 2 is set to be short.
As shown in FIG. 5, the slat 2 may be provided so as to extend outward from the edge. According to this, in the state where the slat curtain 1 is wound up, the slats 2 are overlapped with each other and wound up, so that the winding diameter does not increase.

Further, in the above-mentioned embodiment, the example of the shape of the slat 2 provided with the restricting claw piece 3 constituting the retaining structure is described in which the upper and lower edge engaging connecting portions are the curl portions 21 and 22. As shown in FIG. 7, a slat 2 having a hollow portion 2b filled with a sound deadening material, a curl portion 21 is formed at an upper edge as an engaging connecting portion, and a connecting groove 22 is formed at a lower edge, The restricting claw piece 3 may be fixed. In this case, the base portion 4 of the restriction claw piece 3 is fitted into the hollow portion 2b and fixed.

Further, in the above-mentioned embodiment, the structure in which the claw portion 5 of the regulating claw piece 3 is projected in the indoor side has been described, but it may be projected in the outdoor side. In this case, the guide rail 8 is provided. The position where the engagement strip 13 is provided is the outdoor side wall. In addition, the engaging strips 13 in the guide grooves 9 of the guide rail 8 are provided on both side walls, and the grooves 14 are formed in each side wall so that the protrusion direction of the claw portion 5 of the regulating claw piece 3 at the end portion 2a of the slat 2 is changed. Alternatively, each slat may be configured to be in both the indoor side and the outdoor side.

Further, the restricting claw piece 3 is formed in a substantially T-shape so that the claw part 5 is in both front and back directions with respect to the base part 4, and the tip edge 6 of each claw part 5 is hook-shaped. May be formed. In this case, even if the slat 2 bends in either the outdoor side or the indoor side, the groove 14 of the guide rail 8 is surely moved.
To completely prevent the slats 2 from slipping out of the guide rails 8.

Further, in the above-mentioned embodiment, the example in which the engaging strip 13 is formed integrally with the guide rail 8 in the guide groove 9 of the guide rail 8 has been described. The structure may be such that the compound strip 13 is fixed to the guide rail 8.

[0031]

As described above, in the slat curtain retaining structure of the shutter according to the present invention, when an external force such as wind is applied to the slat curtain in the closed state and the slat curtain is warped and bent, Since the tip edges of the regulating claw pieces provided at the ends of the slats enter into the grooves by the engaging strips arranged in the guide grooves of the guide rails and engage with each other, the ends of the slats are guided by the guide rails. There is an effect that it is possible to prevent it from coming out of the guide groove and coming off.

That is, since the restricting claw pieces provided on the slats and the engaging strips of the guide rails extend in opposite directions facing each other, the restricting claw pieces are formed. The tip edge of the piece is in the groove by the engaging strip,
Since they engage with each other so as to mesh with each other, the slat and the guide rail are surely brought into the engaged state, and the end portion of the slat does not easily come out of the guide rail.

In particular, even when the amount of deflection of the slat becomes large when the wind is strong and the side wall of the guide rail is also deflected, the regulating claw piece of the slat engages with the groove of the engaging strip. Therefore, it is possible to completely prevent the slats from coming off the guide rails.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of a retaining structure of a slat curtain in a shutter according to the present invention.

FIG. 2 is a plan sectional view of the retaining structure.

FIG. 3 is a plan sectional view showing the operation of the retaining structure.

FIG. 4 is a perspective view of a retaining structure according to another embodiment.

FIG. 5 is a perspective view of a retaining structure according to another embodiment.

FIG. 6 is a plan sectional view of a retaining structure according to another embodiment.

FIG. 7 is an exploded perspective view of a retaining structure according to another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Slat curtain 2 ... Slat 2a ... End part 3 ... Regulating claw piece 6 ... Tip edge 8 ... Guide rail 9 ... Guide groove 10, 11 ... Opening edge part 13 ... Engagement strip 14 ... Groove 21, 22 ... Engagement Connection

Claims (1)

[Claims] 1. A guide groove at least on one opening edge of a guide groove for guiding up and down of a slat curtain composed of a plurality of slats connected to each other by engaging connecting portions formed on upper and lower edges. A guide rail in which an engagement strip extending from the opening toward the back of the guide groove is provided, and a groove opening in the back of the guide groove is formed between the engagement strip and the side wall of the guide groove. Provided at the end of the slat that moves in the guide groove of the guide rail, protrudes from the plate surface of the slat, and has a tip edge extending in a direction opposite to the extending direction of the engaging strip. A restricting claw piece which is extended and can be engaged with and disengaged from the groove in the guide groove.