JP3787932B2 - Shut-off structure of slat curtain in shutter - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a structure for preventing a slat curtain from being removed in a shutter that prevents the slat curtain from coming out of a guide rail due to wind pressure or the like.
[0002]
[Prior art]
When the shutter slat curtain is in a closed state, it is bent due to an external force such as wind, and the anti-removal structure that prevents the shutter slat curtain from slipping out of the guide rail that guides the lifting and lowering of the slat curtain is conventionally known. Various known techniques are known.
[0003]
For example, in the structure disclosed in Japanese Utility Model Publication No. 62-85688, L-shaped retaining pawls protruding into the guide rails are provided at both end portions of the slats constituting the slat curtain so that the slat curtain is bent. At this time, the retaining pawl is engaged with a ridge provided on the inner edge of the guide rail to prevent it from coming off.
[0004]
Further, as shown in FIG. 6, a stopper claw 22 formed in a T-shape is provided at both ends 21 a of the slat 21 of the slat curtain 20, and the structure protrudes in both the front and back surfaces in the slat plate thickness direction within the guide rail 23. In addition, there is a retaining structure configured so that when the slat curtain 21 is bent, it can be engaged with the ridges 25 on both edges of the opening groove 24 of the guide rail 23.
[0005]
[Problems to be solved by the invention]
However, since the above-described conventional slat curtain retaining structure is a claw structure that is bent at a substantially right angle with respect to the plate surface of the slat, in a straight direction with respect to the opening groove of the guide rail, Although it is an effective stopper, when the slat bends due to an external force, the engagement with the protrusions of the guide rail is inclined with respect to each other. When the slat is not engaged and the amount of bending of the slat is increased, the engaged state becomes uncertain, that is, the slat may come out of the guide rail (see FIG. 6).
[0006]
In order to solve the above problems, there is an example in which the retaining pawl is configured to be large and the engagement state with the guide rail is made more reliable. In this case, the fixing portion between the retaining pawl and the slat The end structure of the slat located in the guide rail becomes large and a problem such as an increase in weight occurs.
[0007]
Further, according to the structure of the retaining claws as described above, when the slat curtain 20 is wound and wound, the retaining claws 22 interfere with each other as shown in FIG. There is a disadvantage that the winding diameter is increased by the thickness of the retaining claw 22 as shown in FIG.
Further, when the slat curtain 20 is wound up, the retaining claws 22 support the winding state of each slat 21, so that the fixing portion between the slats 21 and the retaining claws 22 and the retaining claws 22 themselves are strong. Is necessary, and the same problem as the above-described problem of enlargement occurs.
[0008]
Therefore, in order to solve the above problems, the present invention prevents the edge of the slat curtain from coming out of the guide rail even when the slat curtain is bent by an external force such as wind, and the slat curtain is wound and wound. It is an object of the present invention to provide a slat curtain retaining structure in a shutter that does not increase the winding diameter.
[0009]
[Means for Solving the Problems]
Next, means for solving the above problems will be described with reference to the drawings corresponding to the embodiments.
In the shutter according to the present invention, the slat curtain is prevented from being pulled out by a guide groove 2 that guides the ascending and descending of the slat curtain 7 composed of a plurality of slats 8 connected to each other by engagement connecting portions 9A and 9B formed at upper and lower edges. A guide rail 1 in which an engagement strip 5 for narrowing the groove width of the guide groove 2 is provided,
A flexible connecting body 10 extending in the longitudinal direction of the slat 8 at an end portion 8a of the slat 8 moving in the guide groove 2 of the guide rail 1;
A restriction claw piece 12 provided at the distal end 10b of the coupling body 10 and detachably engageable with the engagement strip 5 in the guide groove 2.
The base of the connecting body 10 is fixed to the end portion 8a of the slat 8 by fixing means 11, and is swingable in the front and back direction of the slat plate surface with respect to the slat. Yes.
Moreover, the said coupling body 10 can be formed by the strip flat plate spring which has flexibility.
[0010]
According to such a configuration, when the slat curtain 7 is bent by an external force such as wind, the restriction claw piece 12 provided on the end portion 8a of the slat 8 of the slat curtain 7 via the connecting body 10, and the guide rail 1 is engaged with the engagement strip 5 so that the slat curtain 7 does not come out of the guide rail 1.
[0011]
At this time, since the connecting body 12 that connects the slat 8 and the restricting claw piece 12 is made of a flexible material, the connecting body 10 is deformed in the same direction as the slat 8 is deformed by bending. Or warps in a direction opposite to that direction, and the engagement state between the restricting claw piece 12 and the engagement strip 5 is maintained.
[0012]
Further, when the slat curtain 7 is wound and wound, the connecting body 10 bends. Therefore, even when the restricting claw pieces 12 are in a superposed state, the overlapping restricting claw pieces 12 come out of each other. Thus, the winding state of the slat curtain 7 becomes substantially the same as the winding state of only the slat 8, that is, the regulation claw piece 12 does not hinder the winding state, and the winding diameter of the slat curtain 7 is reduced. It becomes possible.
[0013]
The engagement rail 5 of the guide rail is formed in a substantially L shape extending from the opening of the guide groove 2 toward the back direction of the guide groove 2, and the inner wall of the guide groove 2 A groove 6 that opens in the depth direction of the guide groove 2 is formed, and the regulation claw piece 12 has a leading edge 14a extending in a direction opposite to the extending direction of the engagement strip 5, and the guide It is good also as a structure which can be freely engaged / disengaged with the said groove | channel 6 in the groove | channel 2. FIG.
[0014]
According to such a configuration, when the slat curtain 7 is bent by an external force such as wind, the leading edge 14a of the restriction claw piece 12 provided on the end portion 8a of the slat 8 of the slat curtain 7 via the connecting body 10 is provided. And the groove 6 in the guide rail 1 are engaged with each other so that the slat curtain 7 does not come out of the guide rail 1.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is a perspective view showing an embodiment of a slat curtain retaining structure in a shutter according to the present invention.
[0016]
First, the guide rail 1 that guides the raising and lowering of the slat curtain is configured as a pair of left and right so as to support the left and right edges of the slat curtain, and is arranged perpendicular to the left and right edges of the opening of a building or the like, and one side facing each other is As shown in FIG. 1, the opening is formed as a guide groove 2 and has a substantially U-shaped cross section.
[0017]
On the opposing inner surfaces of the opening edge portions 3 and 4 of the guide groove 2 of the guide rail 1, a silencing band (not shown) for preventing rubbing and soundproofing when the slat curtain moves up and down is projected. Is provided.
[0018]
An engagement strip 5 is provided on one opening edge 3 of the guide groove 2 of the guide rail 1.
[0019]
The engagement strip 5 is formed in the guide groove 2 so as to extend from the opening side of the guide groove 2 toward the back direction of the guide groove 2 and is continuous along the longitudinal direction of the guide rail 1. Is formed.
[0020]
And the narrow groove | channel 6 opened in a back direction is formed in the inner wall surface of this engagement strip 5 and the guide groove 2. As shown in FIG.
[0021]
Next, a shutter slat curtain 7 that is supported on both side edges by the guide rail 1 and is guided to move up and down is composed of a plurality of horizontally long and substantially strip-shaped slats 8. The curl portions 9A and 9B as the engagement connecting portions are formed so as to be continuously connected in the vertical direction so as to be rotatable with respect to each other.
[0022]
A plurality of predetermined slats 8 connected to each other, for example, every other slat 8 is provided with a connecting body 10 at both left and right end portions 8a.
[0023]
In the present embodiment, the connecting body 10 is formed of a strip-shaped flat plate spring having flexibility, and a base end 10a is fixed to one plate surface of the end portion 8a of the slat 8 by a fixing means 11 such as a rivet. The tip 10b is fixed so as to extend straight in the longitudinal direction of the slat 8, and is swingable with respect to the slat 8 in the front and back direction of the plate surface of the slat 8.
[0024]
Further, a regulation claw piece 12 is provided at the tip 10 b of the coupling body 10.
[0025]
The restricting claw piece 12 is made of a hard resin such as a synthetic resin mixed with glass fiber, for example, and as shown in FIG. 1, the base portion 13 and the claw portion 14 are integrally formed at a right angle and are substantially L-shaped. The tip edge 14a of the claw portion 14 is further bent at a right angle to form a hook shape.
[0026]
The restricting claw piece 12 is provided with the base 13 fixed to the tip 10b of the connecting body 10 by a fixing means 15 such as a rivet.
In the fixed state, the claw portion 14 is on one surface side of the slat 8 and the leading edge 14a is directed toward the center of the slat 8.
[0027]
Therefore, in the structure for preventing the slat curtain 7 configured as described above, during normal operation, both end portions of the slat curtain 7 are guided into the guide grooves 2 of the left and right guide rails 1 to perform the lifting (opening and closing) operation. .
At this time, the tip edge 14a of the restricting claw piece 12 of the slat curtain 7 and the engaging strip 5 of the guide rail 1 are positioned so as to face each other so as to extend in opposite directions, and the restricting claw is placed in the groove 6. The tip edge 14a of the piece 12 slightly enters and the slat curtain 7 moves in the guide rail 1 without being engaged with each other.
[0028]
When an external force such as wind is applied to the closed slat curtain 7 and the slat curtain 7 is beaten and bent, the slat 8 is bent and deformed as shown in FIGS. The leading edge 14a of the restricting claw piece 12 provided on the end portion 8a of the slat 8 via the connecting body 10 is fitted into the groove 6 in the guide groove 2 of the guide rail 1 and is formed in a substantially hook shape. The regulating claw piece 12 and the engaging strip 5 are engaged with each other so as to mesh with each other.
[0029]
At this time, since the connecting body 10 that connects the slat 8 and the restricting claw piece 12 is made of a flexible leaf spring, as shown in FIGS. 2 (a) and 2 (b), the connecting body 10 is connected to the slat. In accordance with the deformation due to the bending of 8, the bending in the same direction, or the warping in the opposite direction to the direction, the engagement state of the restriction claw piece 12 and the engagement strip 5 is maintained.
[0030]
Thereby, the slat 8 is engaged with the guide rail 1, and even if the slat curtain 7 is bent by an external force such as wind, the end portion 8 a of the slat 8 is prevented from coming out of the guide rail 1.
[0031]
In particular, when the wind is strong, even when the amount of bending of the slat 8 is increased and the side wall of the guide rail 1 is also bent, the connecting body 10 is bent at the end 8a of the slat 8, The engagement state between the restriction claw piece 12 and the engagement strip 5 is not released, and the engagement state is maintained, and the slat 8 does not come out of the guide rail 1.
[0032]
And according to the structure which provided this connection body 10, when the connection body 10 bends, the force which the slat 8 bends with an external force and tries to make the slat 8 come out with respect to the guide rail 1 is a control claw piece. 12 is engaged with the engaging portion of the engaging strip 5, and only the shearing force is applied to the fixed portions of the connecting body 10, the slat 8, and the restricting claw piece 12, and the force to be removed is dispersed. Unlike the retaining pawls that are cantilevered to the end of the slat as in the conventional retaining structure, there is no rotation moment and no damage is caused to the fixed part. I will not let you.
[0033]
Further, according to this slat curtain retaining structure, when the slat curtain 7 is wound and wound, the connecting body 10 is bent as shown in FIG. Even if 12 is in a superposed state, the overlapping restricting claw pieces 12 come to retreat from each other, so that the winding state of the slat curtain 7 is substantially the same as the winding state of only the slat 8 as shown in FIG. The same is true. That is, the regulation claw piece 12 does not hinder the winding state, and the slats 8 are closely wound together, and the winding diameter of the slat curtain 7 can be reduced.
[0034]
Furthermore, since the winding diameter can be configured to be small, the storage case for storing the wound slat curtain 7 can be configured in a small size.
[0035]
In the above-described embodiment, the example in which the coupling body 10 is configured by a leaf spring has been described. However, the embodiment is not limited to this as long as it is a flexible material. For example, elasticity, toughness, and the like. It may be composed of a hard steel wire such as a piano wire that has excellent durability and tensile strength.
[0036]
In the case of the connecting body 10 made of this hard steel wire rod, the connecting bodies 10 may be provided so as to be fixed to both end portions 8a of the slat 8, but the entire length of the slat 8 passes through one side of the slat 8. Both ends are extended from both ends 8a of the slat 8, and the restricting claw pieces 12 are provided at the respective end portions. According to this configuration, the distance between the restricting claw pieces 12 at both ends is fixed, and the connecting body 10 maintains its length between the left and right guide rails 1 even when the slat 8 is bent. The effect of preventing slipping out will be improved.
[0037]
Further, in the above-described embodiment, the example in which the connecting body 10 and the restriction claw piece 12 are configured as separate bodies has been described, but the tip of the connection body 10 is formed in a hook shape and configured as the restriction claw piece 12. Further, the restricting claw piece 12 may be configured by coating the tip portion of the coupling body 10 formed in a hook shape with a resin or the like.
[0038]
Furthermore, when the slat curtain 7 is wound, the restriction claw piece 12 does not interfere with the winding state due to the connecting body 10 being bent, so that the shape of the restriction claw piece 12 is flexible. That is, the shape of the engaging strip 5 formed in the guide groove 2 of the guide rail 1 is not limited to the shape of the restricting claw piece 12 of the above-described embodiment. It does not have to be a substantially L-shaped shape as in the embodiment.
[0039]
For example, as shown in FIG. 4, a pair of engagement strips 5 project from the bottom of the guide groove 2 in the guide groove 2 of the guide rail 1 so as to face the bottom, and the guide groove 2 2 is formed so as to narrow the groove width, and the regulation claw piece 12 provided at the tip 10b of the coupling body 10 is formed in a substantially plate shape extending in the width direction of the guide groove 2, and the regulation claw piece 12 and The connecting claw 10 may be formed in a substantially T shape, and the restriction claw piece 12 may be positioned in the back of the pair of engagement stripes 5. The restriction claw piece 12 and the engagement stripe 5 can be freely engaged and disengaged. Let me.
In the case of this plate-shaped regulation claw piece 12, as shown in FIG. 5A, the base 13 serving as a fixed portion to the coupling body 10 is formed so as to protrude from the substantially central portion of the regulation claw piece 12. The tip 10b of the coupling body 10 may be fixed by the fixing means 15, and the tip 10b of the coupling body 10 is bent into an L shape as shown in FIG. It is good also as a structure which fixes the character part and the approximate center of the plate-shaped regulation nail | claw piece 12 with the fixing means 15. FIG.
[0040]
In the above-described embodiment, the example in which the connecting body 10 and the regulation claw piece 12 are provided in every other slat 8 of each slat 8 of the slat curtain 7 has been described. Depending on the size of the slat curtain 7 and the like, the number of components of the coupling body 10 and the regulation claw piece 12 may be increased or decreased.
[0041]
【The invention's effect】
As described above, in the retaining structure for a slat curtain according to the present invention, when an external force such as wind is applied to the slat curtain in a closed state and the slat curtain is beaten and bent, the connecting body is connected to the end of the slat. The restricting claw piece provided through the guide rail and the engaging strip projecting in the guide groove of the guide rail are engaged with each other, so that the end portion of the slat comes out of the guide groove of the guide rail. There is an effect that it can be prevented from coming off.
[0042]
In addition, since the connecting body that connects the slat and the restricting claw piece is made of a flexible material, the connecting body bends in the same direction as the slat bends, or in that direction. On the other hand, it will be warped in the opposite direction, and it will be possible to maintain the engagement state between the restricting claw piece and the engagement strip, and the deflection amount of the slat will be increased, causing the side wall of the guide rail to be bent. Even in this case, the connecting body is bent at the end portion of the slat, so that the engagement state between the restriction claw piece and the engagement strip is not released, and the slat from the guide rail is maintained. The effect that is not escaped is obtained.
[0043]
And according to the structure which provided this connection body, when a connection body bends, the force which a slat bends with an external force and tries to pull out a slat with respect to a guide rail is a regulation claw piece and an engagement strip. The joints, the slats, and the restricting claw pieces are fixed to the fixed parts of the connecting body, and only the shearing force is applied, and the force to be pulled out is dispersed. Is not generated in the fixed portion, and the effect that it is not damaged is obtained.
[0044]
Further, according to the retaining structure for a slat curtain of the present invention, when the slat curtain is wound and wound, the connecting body bends. The claw pieces come to retreat from each other, so that the winding state of the slat curtain is substantially the same as the winding state of only the slats, that is, the regulating claw piece does not interfere with the winding state, It winds up densely and the effect which becomes possible to make the winding diameter of a slat curtain small is obtained. And from this, the effect that the storage case which stores the wound slat curtain can be configured in a small size can be obtained.
[0045]
Furthermore, the engagement strip in the guide groove of the guide rail is formed in an L shape and a groove that opens in the depth direction of the guide groove is provided, and the tip edge of the regulation claw piece is opposite to the extending direction of the engagement strip. As described above, when the external force such as wind is applied to the slat curtain that is closed as described above, The piece and the engaging strip in the guide groove are engaged with each other so as to mesh with each other, and the effect of preventing the end portion of the slat from coming out of the guide groove of the guide rail is further improved.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an embodiment of a slat curtain retaining structure in a shutter according to the present invention. FIG. 2A is a plan sectional view showing the operation of the retaining structure. FIG. 1B is a plan view showing the operation of the retaining structure. Sectional view [FIG. 3] (a) Side view of the slat curtain provided with the same retaining structure in a wound state (b) Enlarged front sectional view of the same part [FIG. 4] Flat sectional view of the retaining structure of another embodiment [ 5A is a plan sectional view of a regulating claw piece in a retaining structure of another embodiment. FIG. 5B is a sectional plan view of a regulating claw piece in a retaining structure of another embodiment. FIG. FIG. 7A is a side view of a wound state of a slat curtain provided with the conventional retaining structure. FIG. 7B is an enlarged front sectional view of the same portion.
DESCRIPTION OF SYMBOLS 1 ... Guide rail 2 ... Guide groove 3 ... Opening edge part 5 ... Engagement strip 6 ... Groove 7 ... Slat curtain 8 ... Slat 8a ... End part 9A, 9B ... Engagement connection part (curl part)
DESCRIPTION OF SYMBOLS 10 ... Connection body 10b ... Tip 12 ... Restriction claw piece 14a ... Tip edge

Claims (3)

An engaging strip for narrowing the groove width of the guide groove projects in the guide groove for guiding the raising and lowering of the slat curtain composed of a plurality of slats connected to each other by the engaging connecting portions formed on the upper and lower edges. Guide rails,
A flexible connecting body provided at the end of the slat that moves in the guide groove of the guide rail and extending in the longitudinal direction of the slat;
A restricting claw piece provided at a tip of the coupling body and capable of being engaged and disengaged with the engagement strip in the guide groove;
The slat in the shutter is characterized in that the base of the coupling body is fixed to the end of the slat by a fixing means and is swingable in the front and back direction of the slat plate surface with respect to the slat. Curtain retaining structure. The slat curtain retaining structure for a shutter according to claim 1, wherein the connecting body is made of a strip-shaped plate spring having flexibility.   An engagement strip of the guide rail is formed in a substantially L shape extending from the opening of the guide groove toward the back direction of the guide groove, and extends in the back direction of the guide groove with the inner wall of the guide groove. An opening groove is formed, and the restricting claw piece has a leading edge extending in a direction opposite to the extending direction of the engaging strip, and can be freely engaged with and disengaged from the groove in the guide groove. The slat curtain retaining structure for a shutter according to claim 1 or 2.

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