JP3546552B2 - Retaining structure of slat curtain in shutter - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a slat curtain retaining structure for a shutter that prevents a slat curtain from coming off a guide rail due to wind pressure or the like.
[0002]
[Prior art]
When the shutter slat curtain is closed, the slat curtain bends due to external force such as wind, and both sides of the slat curtain are prevented from coming off and coming off from the guide rail that guides the slat curtain up and down. Known techniques are known.
[0003]
For example, in the structure disclosed in Japanese Utility Model Laid-Open Publication No. 62-85688, a retaining claw having an L-shaped bent end protruding into a guide rail is formed on both side ends of a slat constituting a slat curtain. When the slat curtain bends, the retaining pawl is engaged with a ridge on the inner edge of the guide rail to prevent the slat curtain from coming off.
[0004]
[Problems to be solved by the invention]
However, in the above-mentioned conventional retaining prevention structure, it is assumed that the guide rail is not deformed. However, when this guide rail is made of a thin aluminum material, the guide rail is affected by the deflection of the slat curtain. May be deformed.
[0005]
That is, the opening groove width of the guide rail is expanded due to the bending of the slat curtain, the ridges in the guide rail do not engage with the retaining claws of the slat curtain, and the slat curtain comes off from the guide rail. There was a problem.
[0006]
In order to solve the above problems, the present invention provides a slat curtain retaining structure for a shutter in which the slat curtain does not come out of a guide rail when the slat curtain is bent by an external force such as wind. It is intended to be.
[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 retaining structure of the slat curtain in the shutter according to the present invention is, as shown in the embodiment of FIG. 1 to FIG. 3, FIG. 6, or FIG. At least one opening edge 10 of the guide groove 9 that guides the elevation of the slat curtain 1 composed of the plurality of slats 2 connected to each other, extends from the opening of the guide groove 9 toward the back of the guide groove 9. A protruding engagement strip 13 is provided, and a groove 14 that opens in the depth direction of the guide groove 9 is formed by the engagement strip 13 and a side wall of the guide groove 9, and has a substantially G-shaped cross section. Guide rail 8,
The base 4 and the claw 5 are formed in a substantially L-shape integrally formed at a right angle, and the distal end edge 6 of the claw 5 is further bent at a right angle to form a hook shape. The control claw 3 is provided with the base 4 fixed to an end 2 a of the slat 2 moving in the guide groove 9 of the guide rail 8, and the plate surface of the slat 2 is provided. In addition to being more protruding, the tip edge 6 extends in a direction opposite to the direction in which the engaging strip 13 extends, and is capable of engaging and disengaging with the groove 14 in the guide groove 9.
Further, as shown in the embodiment of FIG. 4, the restricting claw piece 3 is formed by extending the end 2a of the slat 2 and bending the extended end 2a so that the tip edge 6 is formed. It can be formed in a substantially hook shape so as to extend in the direction opposite to the direction in which the engaging strip 13 extends in the guide rail 8.
As shown in the embodiment of FIG. 5, the regulating claw piece 3 is punched out of the plate surface at the end 2a of the slat 2 except for one side edge, and the leading edge 6 which is a free edge is replaced with the plate surface. The tip edge 6 can be formed by bending so as to protrude further, and this tip edge 6 can be further bent.
[0008]
With such a configuration, when the slat curtain 1 is bent by an external force such as wind, the regulating claw 3 provided at the end 2 a of the slat 2 of the slat curtain 1 and the groove 14 in the guide rail 8 are The slat curtains 1 are securely engaged with each other, and do not fall out of the guide rails 8.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
FIG. 1 is an exploded perspective view showing an embodiment of a slat curtain retaining structure in a shutter according to the present invention, and FIG. 2 is a plan sectional view thereof.
[0010]
First, the slat curtain 1 of the shutter is composed of a plurality of oblong and substantially strip-shaped slats 2, and is provided with curled portions 21 and 22 as engagement connecting portions formed at upper and lower edges of each slat 2. And are connected continuously vertically so as to be rotatable with each other.
[0011]
Restricting claw pieces 3 are provided on both left and right ends 2a of a plurality of linked slats 2 for each predetermined number.
Here, the plurality of slats 2 provided for each predetermined number provided with the regulating claw pieces 3 are a plurality of slats 2 for each number that does not become an adjacent winding layer in each winding layer in a state where the slat curtain 1 is wound up. Is preferred.
[0012]
The restricting claw piece 3 is made of, for example, a synthetic resin mixed with glass fiber. As shown in FIGS. 1 and 2, a substantially L-shaped base 4 and a claw 5 are formed integrally at a right angle. In addition to being formed in a shape, the tip edge 6 of the claw portion 5 is further bent at a right angle to form a hook shape.
[0013]
The restricting claw 3 is provided on the end 2a of the slat 2 by fixing the base 4 with fixing means 7 such as rivets, staples, adhesives, and welds.
In the fixed state, the claw portion 5 is fixed so as to protrude from the surface of the slat 2 on the indoor side, and the direction of the tip edge 6 is set to be the center direction of the slat 2.
In the present embodiment, the claw portion 5 is formed so as to be thicker near the base 4.
[0014]
Next, a pair of left and right guide rails 8 for guiding the lifting and lowering of the slat curtain 1 are erected perpendicularly to left and right edges of an opening of a building or the like, and as shown in FIG. The guide groove 9 is formed in a substantially U-shaped cross section.
[0015]
Further, mounting groove portions 12 are formed on opposing inner surfaces of both edges 10, 11 of the opening of the guide groove 9 of the guide rail 8, and mohairs for preventing rubbing and soundproofing when the slat curtain 1 moves up and down (FIG. (Not shown).
[0016]
Further, an engaging strip 13 integrated with the mounting groove 12 is provided at one opening edge 10 on the indoor side of the guide groove 9 of the guide rail 8 on the indoor side.
[0017]
The engaging strip 13 is formed in the guide groove 9 so as to extend from the opening side of the guide groove 9 toward the depth direction of the guide groove 9, and is continuous along the longitudinal direction of the guide rail 8. It is formed.
[0018]
Then, a narrow groove 14 that opens in the depth direction is formed on the engagement strip 13 and the inner wall of the guide groove 9.
[0019]
Accordingly, in the slat curtain retaining structure thus configured, 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. An elevating (opening / closing) operation is performed.
At this time, the distal end 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 within the guide rail 8.
[0020]
Then, when an external force such as wind is applied to the closed slat curtain 1 and the slat curtain 1 is pushed and bent, as shown in FIG. 3, the slat 2 is bent and provided at the end 2 a of the slat 2. The leading edge 6 of the regulating claw piece 3 enters the groove 14 formed by the engaging strip 13 in the guide groove 9 of the guide rail 8 and engages with each other.
[0021]
According to this retaining structure, since the regulating claw piece 3 and the engaging strip 13 are each formed in a hook-like cross section, they are engaged so as to mesh with each other, so that the slat and the guide rail 8 are securely engaged. Even if the slat curtain 1 is bent by an external force such as wind in the combined state, the end 2 a of the slat 2 is prevented from coming off the guide rail 8.
[0022]
In particular, when the wind is strong, the amount of deflection of the slat 2 increases, and the side wall of the guide rail 8 also bends (see FIG. 3). Since the slat 2 is engaged with the groove 14 of the thirteen, it is possible to completely prevent the slat 2 from coming out of the guide rail 8.
[0023]
In addition, since the restricting claw pieces 3 can be configured without protruding greatly in the thickness direction of the slats 2, it is possible to configure a retaining structure without expanding the width of the guide rails 8, and the building side It is possible to reduce the space required for mounting the guide rails on the vehicle.
[0024]
In the above-described embodiment, an example has been described in which the restricting claw 3 is formed separately from the slat 2, but the restricting claw 3 may be formed integrally with the slat 2.
[0025]
That is, as shown in FIG. 4, the end 2a of the slat 2 is formed to extend in a wing shape, and the extended wing end 2a is bent so that the leading edge 6 is engaged with the engaging strip in the guide rail 8. The restricting claw 3 is formed in a substantially hook shape so as to extend in a direction substantially opposite to the direction in which the piece 13 extends.
In addition, as shown in FIG. 5, the plate surface at the end 2a of the slat 2 is punched by a process such as press working so as to leave one side edge, and the leading edge 6 which is a free edge side is projected from the plate surface. The leading edge 6 may be further bent to form the regulating claw piece 3.
[0026]
Further, in the above-described embodiment, the length of the regulating claw 3 projecting from the slat edge in the length direction (left-right width direction) of the slat 2 is set to be short, but as shown in FIG. It may be configured to extend outward from the second edge.
According to this, in a state where the slat curtain 1 is wound up, each slat 2 is wound up while overlapping with each other, so that the winding diameter does not become large.
[0027]
Furthermore, in the above-described embodiment, the example in which the engaging connection portions at the upper and lower edges are curled portions 21 and 22 is described for the shape of the slat 2 provided with the regulating claw piece 3 constituting the retaining structure. As shown in FIG. 2, the restriction claw is provided on the slat 2 having a hollow portion 2b filled with a silencing material, a curl portion 21 formed on an upper edge as an engagement connection portion, and a connection groove 22 formed on a lower edge. It is good also as composition which fixes piece 3.
In this case, the base 4 of the regulating claw 3 is fitted and fixed in the hollow portion 2b.
[0028]
Further, in the above-described embodiment, the configuration in which the claw portion 5 of the regulating claw piece 3 protrudes toward the indoor side has been described. However, the claw portion 5 may protrude toward the outdoor side. The position where the strip 13 is provided is set as the outdoor side wall.
The engaging strip 13 in the guide groove 9 of the guide rail 8 is provided on both side walls, and a groove 14 is formed in each of the engaging strips 13 so that the protruding direction of the claw 5 of the regulating claw 3 at the end 2 a of the slat 2 is adjusted. Alternatively, each slat may be configured to be in both directions of the indoor side and the outdoor side.
[0030]
In the above-described 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. 13 may be fixed to the guide rail 8.
[0031]
【The invention's effect】
As described above, in the retaining structure of the slat curtain in the shutter according to the present invention, when an external force such as wind is applied to the slat curtain in the closed state, when the slat curtain is bent and bent, the slat curtain ends. The leading edge of the provided regulating claw piece enters the groove formed by the engaging strip disposed in the guide groove of the guide rail and engages with each other, so that the end of the slat comes out of the guide groove of the guide rail. There is an effect that it can be prevented that it comes off.
[0032]
That is, since the regulating claw provided on the slat and the engaging strip of the guide rail are formed in a substantially hook shape in which the extending directions are opposite to each other, the leading end of the regulating claw is formed. The edges are engaged so as to mesh with each other in the grooves formed by the engaging strips, so that the slats and the guide rails are securely engaged with each other, and the ends of the slats do not easily come out of the guide rails. The effect can be obtained.
[0033]
In particular, when the wind is strong, the amount of deflection of the slat increases, and even when the side wall of the guide rail also bends, the slat regulating claw piece engages in the groove of the engagement strip, There is an effect that the slat can be completely prevented from coming off from the guide rail.
[Brief description of the drawings]
1 is an exploded perspective view showing an embodiment of a slat curtain retaining structure 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; 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 cross-sectional plan view of a retaining structure according to another embodiment. Exploded perspective view of a retaining structure according to an embodiment.
DESCRIPTION OF SYMBOLS 1 ... Slat curtain 2 ... Slat 2a ... End 3 ... Restriction claw piece 6 ... Tip edge 8 ... Guide rail 9 ... Guide groove 10, 11 ... Opening edge 13 ... Engagement strip 14 ... Groove 21, 22 ... Engage Connection

Claims (3)

At least one opening edge of a guide groove that guides the elevation of a slat curtain composed of a plurality of slats connected to each other by engagement connection portions formed on upper and lower edges, from the opening of the guide groove to the guide groove. A guide rail in which an engagement strip extending in the depth direction is provided, and a groove that opens in the depth direction of the guide groove is formed by the engagement strip and a side wall of the guide groove,
The base portion and the claw portion are formed in a substantially L-shape in which the base portion and the claw portion are formed integrally at a right angle, and the claw portion further includes a regulating claw piece formed by bending a right angle at a right angle and forming a hook shape. The restricting pawl is provided with the base fixed to an end of the slat moving in the guide groove of the guide rail, protruding from the plate surface of the slat, and having a leading edge formed by the engaging strip. extension extending toward the direction opposite, the retaining structure of the slat curtain in the shutter to the groove and characterized by a disengageably of the guide groove of the piece. At least one opening edge of a guide groove that guides up and down of a slat curtain composed of a plurality of slats connected to each other by engagement connection portions formed on upper and lower edges, from the opening of the guide groove to the guide groove An engagement strip extending in the depth direction is provided, and a guide rail in which a groove that opens in the depth direction of the guide groove is formed by the engagement strip and the side wall of the guide groove,
The end of the slat is formed so as to be extended, the extended end is bent, and the leading end edge is extended in the direction opposite to the extending direction of the engaging strip in the guide rail. And a restricting claw formed in a substantially hook shape, wherein a distal end edge of the restricting claw is detachable from the groove in the guide groove. At least one opening edge of a guide groove that guides up and down of a slat curtain composed of a plurality of slats connected to each other by engagement connection portions formed on upper and lower edges, from the opening of the guide groove to the guide groove An engagement strip extending in the depth direction is provided, and a guide rail in which a groove that opens in the depth direction of the guide groove is formed by the engagement strip and the side wall of the guide groove,
The plate surface at the end of the slat is punched out, leaving one side edge, and the leading edge, which is a free edge, is bent and formed so as to project from the plate surface, and the leading edge is further bent and formed. Claw pieces, wherein a leading edge of the regulation claw pieces is freely engageable with and disengageable from the grooves in the guide grooves.

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