JP2008008074A - Shutter for building - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve a function in which a locking recess 6 formed in a slat 2 is engaged with and prevented from coming out of the lateral outer ridge 9a of a mohair pocket 9 formed in a guide rail 3 when a shutter curtain 1 receives strong wind and is deflected. <P>SOLUTION: A locking part 9e projects from the tip of the lateral outer ridge 9a of the mohair pocket to increase its height over a lateral inner ridge 9b. Consequently, the deflection angle of the shutter curtain locked by engaging the locking recess 6 to the lateral outer ridge 9a can be largely secured. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention belongs to the technical field of architectural shutters attached to openings such as entrances and exits of buildings.

In general, this type of shutter for building is designed to open and close the opening by moving the shutter curtain while guiding it with the guide rail. In this case, the strong wind generated when the shutter curtain hits the typhoon, etc. In response to this, it may be required to provide a wind-resistant mechanism so as not to pull out from the guide rail. Therefore, conventionally, a wind-resistant hook is provided at the end of the slat constituting the shutter curtain, and the wind-resistant hook is provided on the guide rail. The stopper is prevented from coming off by being locked to the locking portion. However, this not only increases the number of parts because a wind-resistant hook is required as a separate member, but also prevents the wind-resistant hook from becoming a hindrance when winding the shutter curtain, Has a problem that a step for attaching the wind-resistant hook to the slat is required.
Therefore, a locking recess is formed at the left and right end portions of the guide rail of the slat, and the locking recess is engaged with a mohair pocket formed by a pair of protrusions in the left and right inside and outside projecting from the inner surface of the guide rail. There are known ones that stop the shutter curtain to come off (for example, Patent Documents 1 and 2).
Japanese Patent No. 3479741 Japanese Patent No. 3596814

In this case, the one disclosed in Patent Document 1 prevents the shutter curtain from coming off from the guide rail by locking the locking recess formed on the slat to the protrusion in the laterally outer side (the groove depth side of the guide rail). It is configured to do. In this case, as shown in FIG. 9, the inner and outer ridges have the same amount of projection, and the locking recess 20 is locked to the outer ridge 21 when the shutter curtain has a small bending angle. When the angle increases, the locking recess 20 is disengaged from the outer ridge 21 and is locked to the inner ridge 22 (guide rail inlet end side). By the way, when the shutter curtain bends, it is normal that all do not bend uniformly and bend irregularly, so even if the lock with the outer ridge is released and locked to the inner ridge This is a part, and there is a problem that an irregular locking state occurs in which the rest remains locked to the outer protrusion.
On the other hand, the thing of patent document 2 is made to latch a latching recessed part to an inner side protrusion from the beginning. When locking the shutter curtain by locking it to the inner ridge in this way, it is necessary to lock the mohair formed of a slippery material in a state where it is thrown down. There is a problem that not only the certainty of stopping is lowered but also mohair hurts. In addition, when the water that has entered the mohair freezes and the mohair pocket becomes hard and clogged in severe cold, there is a problem that it becomes impossible to lock the inner recess of the locking recess. In addition, the shutter curtain is in a state of being pulled out from the guide rail as much as the locking of the locking recess moves from the outer ridge to the inner ridge. There are also problems, and here are the problems to be solved by the present invention.

The present invention has been created in order to solve these problems in view of the above circumstances, and the invention of claim 1 is a shutter formed by connecting a plurality of slats in a series. In the architectural shutter constructed by loosely fitting both left and right ends of the curtain to the guide rail, a mohair pocket is formed on the inner surface of the guide rail using a pair of protrusions facing the left and right inner and outer sides. In addition, when forming a locking recess for locking the shutter curtain to prevent the shutter curtain from slipping off when the shutter curtain is bent due to strong wind, The architectural shutter is characterized in that a locking portion having a tall height is formed by projecting toward the shutter curtain side from the ridge on the inner side in the left-right direction.
The invention according to claim 2 is the architectural shutter according to claim 1, wherein the tall locking portion is formed in a state of protruding to the shutter curtain side from the mohair pocket.
According to a third aspect of the present invention, the tall locking portion is formed by biasing the ridge on the outer side in the left-right direction forming the mohair pocket toward the shutter curtain to form an inclined mohair pocket. The architectural shutter according to claim 1.
The invention according to claim 4 is characterized in that the groove bottom length of the locking recess is set to be longer than the length from the locking portion tip to the tip of the left-right outer ridge. It is an architectural shutter as described in any one of these.

According to the first aspect of the present invention, the latching portion latched by the latching concave portion is secured in the left-right direction while the latching concave portion is latched by the laterally outer ridge to prevent the shutter curtain from coming off. As a result of being taller than the inner protrusion, even if the shutter curtain is greatly bent, the locking of the locking recess is maintained, and the wind resistance function is improved.
According to the invention of claim 2 or 3, a tall locking portion can be reliably provided.
According to the invention of claim 4, it is possible to secure a larger amount of bending when the shutter curtain is prevented from coming off.

  Next, embodiments of the present invention will be described with reference to the drawings. In the drawings, reference numeral 1 denotes a shutter curtain constituting an architectural shutter. The shutter curtain 1 is constructed by interlocking a plurality of slats 2 in a series, and is a guide erected on the left and right sides of the opening. The rail 3 is assembled in a state where the left and right side edges are swallowed. In the case of an electric shutter, the shutter curtain 1 is open and closed while being guided by the guide rail 3 based on the driving of an electric switch (not shown). Details are omitted.

  The slat 2 is a long body that is long in the left-right direction, and is formed by roll forming, and an upper coupling portion 4 and a lower coupling portion 5 are formed on the upper and lower edges, respectively. Is inserted into the lower connecting portion 5 from the left and right directions so that the slats 2 can be interlocked.

  The upper coupling portion 4 is formed with a cut-off portion 4a whose left and right end portions are cut off, while the lower coupling portion 5 is slightly left and right with respect to the left and right end positions of the cut-off portion 4a. A punching portion 5a is formed by punching from the outer side position to the inner side position in the left and right direction beyond the left and right end positions. The interlocked slats 2 squeeze the laterally outer portion of the lower coupling portion 5 with respect to the punched portion 5a to form a crushed portion 5b, thereby preventing the horizontal detachment (movement restriction). Has been made. By preventing the upper and lower side coupling parts 4 and 5 from coming off in this way, the cut edges 4a and the cutout edges 5a and the cutout edges 5a are opposed to each other at the cut edges 4a. ), And is prevented from coming off by being squeezed into an inclined surface like the conventional one that has been crushed into an inclined shape (see Patent Document 1). Thus, it is set so that the retaining connection with high dimensional accuracy is made.

  Further, the upper and lower side coupling portions 4 and 5 are respectively formed with notches 4c and 5c by notching the positions on the inner side in the left and right direction with respect to the retaining portion, and the notches 4c and 5c are used as described later. An engagement recess 6 according to the invention is formed. The upper notch portion 4 c formed in the upper coupling portion 4 has both left and right direction inner and outer edges 4 d and 4 e cut away at right angles to the upper coupling portion 4. On the other hand, the lower notch 5c formed in the lower connecting portion 5 is notched in an inclined shape in which the inner edge 5d in the left-right direction is shallower toward the inner side, and the outer edge 5e is notched at a right angle. Yes. These upper and lower cutouts 4c and 5c have outer end edges 4e and 5e cutout at the same position in the left-right direction, but the inner end edges 4d and 5d are lower cutouts that are on the interlock coupling surface side. The inner end edge 5d of 5c is notched with a dimension setting located on the outer side in the left-right direction with respect to the inner end edge 4d of the upper notch 4c, whereby the upper notch 4c is made to the lower notch 5c. When the slats 2 are assembled so as to prevent the detachment, the engaging recess 6 is in a state in which the inner end edge 4d is hidden by the inner end edge 5d and the inner side edge 5d is hidden. The edge is set to be an inclined edge (formed by the inner edge 5d) 6a, and the laterally outer edge is set to a right-angled edge (formed by the outer edges 4e, 5e) 6b. ing. In other words, in this case, adjacent slats are connected by interlock coupling, and the engaging recess is formed by cutting out the upper and lower coupling parts formed in the slat for the interlock connection. is there

  On the other hand, the guide rail 3 is formed of a substantially U-shaped groove-shaped material having an opening on the inner side in the left-right direction, and a mohair pocket 8 for inserting and incorporating mohair 7 into both inner surfaces of the opening 3a. , 9 are formed. And this invention is implemented in the mohair pocket 9 of the outdoor side. In other words, the mohair pocket 9 is constituted by the protrusion 9a on the outer side in the left-right direction (groove depth side) and the protrusion 9b on the inner side in the left-right direction (inlet side), but both the protrusions 9a, 9b are wide. The front end portions 9c and 9d are bent to the sides facing each other so as to fit the mohair base portion 7a thus formed in a retaining manner. Further, a locking portion 9e that protrudes toward the shutter curtain 1 side (indoor side) and has a tall shape is formed at the tip of the laterally extending outer ridge 9a.

  In the normal state where the left and right ends of the shutter curtain 1 are loosely fitted to the guide rail 3, the locking recess 6 is positioned on the outer side in the left-right direction (groove depth side) of the mohair pocket 9 (FIG. 6A). ))), But when the shutter curtain 1 bends outdoors due to strong wind, the shutter curtain 1 moves in the direction of coming out of the guide rail 3 in the inclined state (inward in the left-right direction), and the locking recess 6 When the position of the mohair pocket 9 is reached, the outer edge 6b in the left-right direction is locked to the locking portion 9e protruding from the outer protrusion 9a to be prevented from coming off. In this case, the length X of the groove bottom 6c of the locking recess 6 is set to be longer than the length Y from the tip of the locking portion 9e to the tip of the left and right inner ridge 9b. The locking recess 6 has an inclined posture in which the tip of the inlet-side protrusion 9b is separated from the locking recess groove bottom 6c in the retaining state in which the outer edge 6b is locked to the locking portion 9e (see FIG. 6B). ) To the contacted large inclined posture (see FIG. 6C), the retaining is performed in a state where the outer edge 6b is well locked to the locking portion 9e.

  In the embodiment of the present invention configured as described above, when the shutter curtain 1 is subjected to strong wind and bends to the outdoor side, the left and right outer edges 6b of the locking recess 6 are the left and right outer edges of the mohair pocket 9. The shutter 9 is latched by the latching portion 9e protruding from the edge 9a to prevent the shutter curtain 1 from coming off from the guide rail 3, and thereby the mohair 7 is rowed down as in the case where the shutter curtain 1 is latched to the left and right inner ridge 9b. However, since the locking portion 9e is taller than the inner ridge 9b in the left-right direction, the shutter curtain 1 is greatly bent. The retaining function is improved until the angle is reached, and the retaining function is improved.

  Moreover, in this structure, the locking recess 6 is formed by the notches 4c and 5c formed in the upper and lower coupling portions 4 and 5 that interlock the adjacent slats 2 with each other. Sometimes the load acting on the shutter curtain 1 side is received by both slats 2 and the strength can be increased. In this case, since the upper notch 4c is set to be long inward in the left-right direction with respect to the lower notch 5c, the same length is obtained when the slats 2 are assembled in the above-described retaining shape. In this case, the engaging recess 6 is in a state where the inner edge 4d is hidden by the inner edge 5d even if there is a processing error. As a result, when the shutter recess 1 returns to the original posture from the position where the shutter curtain 1 is bent, the locking recess 6 is always engaged with the inclined edge 6a. The stop portion 9e is prevented from being caught and a smooth return can be performed.

  In addition, in this case, the length X of the locking recess groove bottom 6c is set to be longer than the length Y from the tip of the locking portion 9e to the tip of the left and right inner ridge 9b. 6 is a state in which the outer edge 6a in the left and right direction is locked to the locking portion 9e on the outer side in the left and right direction, and the groove bottom 6c is stable from the state in which the groove bottom 6c is separated from the inner protrusion 9b in the left and right direction. As a result of the locking, the retaining function is further improved.

  Of course, the present invention is not limited to the above-described embodiment, and the indoor mohair pocket can be similarly configured when it is necessary to prevent the indoor side from coming off. Moreover, a latching recessed part can also be formed in the abdominal part of a slat, without forming in an interlock coupling | bond part.

Moreover, this invention can be made like 2nd-4th embodiment shown, for example to FIG. 7 (A)-(C). In the second embodiment, the thickness of the portion into which the mohair base end portion 7a of the mohair pocket 9 is inserted is set to be the same as the thickness of the guide rail 3, and the outdoor side mohair pocket 9 is The engaging portion 9e protrudes from the tip of the laterally outer ridge 9b toward the indoor side, while the indoor mohair pocket 8 is opposed to the lateral ridges 8a and 8b. The thickness of the tip end portions 8c and 8d bent to the side to be bent is increased by the thickness of the locking portion 9e protruding from the laterally extending outer ridge 9b of the outdoor side mohair pocket 9, whereby both mohair pockets 8, The protrusions S of the respective mohairs 7 protruding from the tip of 9 are aligned (same) so that the tip of the mohair 7 is located at an equal distance from the curtain center position G of the guide rail 3. .
Further, in the third embodiment, when the locking portion is formed at the tip of the laterally extending outer ridge 9b, the thickness of the tip 9c of the outer ridge 9b is increased toward the shutter curtain. In the fourth embodiment, the length of the laterally extending outer ridge 9b is simply increased, and can be implemented in this way.

  Furthermore, the present invention can also be implemented as in the fifth embodiment shown in FIG. In the fifth embodiment, the outdoor-side mohair pocket 10 having a retaining function is formed by inclining the laterally outer ridge 10a toward the shutter curtain 1 side, and this is done. Thus, the left and right outer ridges 10a themselves are tall with respect to the left and right inner ridges 10b and exhibit a high retaining function as in the first embodiment.

Further, in the sixth embodiment shown in FIG. 8 (B), the mohair pocket 9 of the first embodiment is adopted as it is for the tall locking portion 9e. The outer end 2a in the left-right direction of the slat 2 in a retaining state in which the shutter curtain 1 is bent and the locking recess 6 is locked to the locking portion 9e on the guide surface opposite to the guide surface on which the mohair pocket 9 is formed. , And a restricting portion 3b for further restricting the deflection of the shutter curtain 1 is formed in a protruding manner. By doing so, the function of preventing the shutter curtain 1 from coming off can be improved. In this case, the shutter Before the curtain 1 is bent and the engagement of the engagement recess 6 with respect to the engagement portion 9e is released, the left and right outer ends 2a of the slats 2 come into contact with the restricting portion 3b and the shutter curtain is further bent. By set to odd, it can exert a more reliable retaining function. At this time, by setting the left and right outer ends 2a of the slats 2 in contact with the tip of the left and right inner ridges 9b of the mohair pocket 9 in contact with the groove bottom 6c, Since the slat 2 in a bent state is supported at three locations on one side, the slat 2 can be stabilized together with the retaining of the slat 2.
In other words, in this embodiment, the shutter curtain bends and the locking recess becomes the locking portion on the guide surface opposite to the guide surface of the guide rail on which the mohair pocket for preventing the shutter curtain from coming off is formed. In the locked state, the left and right outer ends of the slats come into contact with each other to form a restricting portion that restricts further deflection of the shutter curtain.
In this case, the restricting portion is set so that the outer ends in the left and right directions of the slats come into contact with each other before the shutter curtain is bent and the locking portion of the locking recess is released from the locking portion.
In addition, the restricting portion is configured such that the shutter curtain is bent and the locking recess is locked to the locking portion, and the slat left and right directions are in contact with the tip of the protrusion on the inner side in the left and right direction of the mohair pocket. It is set so that the outer end abuts.

It is a schematic front view of the shutter for construction. It is a partial front view of a shutter curtain. It is a partial side view of a shutter curtain. (A), (B), (C), and (D) are a front view, a plan view, a bottom view, and a side view of a slat. (A), (B), and (C) are an enlarged side sectional view of an engaging recess part, an enlarged side view of an interlock coupling part, and an enlarged front view of an interlock coupling part. The shutter curtain is shown fitted to the guide rail, (A) is a normal state, (B) and (C) are explanatory views in plan view showing a state in which the shutter curtain is bent and prevented from being removed. (D) is an enlarged plan view of an outdoor side mohair pocket. (A) (B) (C) is a top view of the guide rail which shows 2nd-4th embodiment. (A) (B) is a top view which shows 5th Embodiment and 6th Embodiment. (A), (B), and (C) are explanatory views in plan view showing a state in which a conventional architectural shutter is not detached.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Shutter curtain 2 Slat 3 Guide rail 6 Engagement recessed part 6a Left-right direction inner end 6b Left-right direction outer end 6c Groove bottom 7 Mohair 9 Mohair pocket 9a Left-right direction outer protrusion 9b Left-right direction inner protrusion 9e Locking part

Claims (4)

  In an architectural shutter configured by loosely fitting left and right ends of a shutter curtain formed by connecting a plurality of slats in a series with a guide rail, the inner surface of the guide rail faces the inner and outer sides of the guide rail. While the mohair pocket is formed using a pair of ridges, when the shutter curtain is bent by strong wind, the slats are engaged with the ridges on the outer side in the left-right direction to prevent the shutter curtain from coming off. In forming the recess, the architectural shutter is characterized in that the protruding portion on the outer side in the left-right direction protrudes toward the shutter curtain side from the protruding item on the inner side in the left-right direction to form a tall locking portion.   The architectural shutter according to claim 1, wherein the tall locking portion is formed in a state protruding from the mohair pocket toward the shutter curtain side.   2. The tall locking portion is formed by biasing a protrusion on the outer side in the left-right direction forming the mohair pocket toward the shutter curtain to form an inclined mohair pocket. The architectural shutter described.   4. The groove bottom length of the locking recess is set to be longer than the length from the locking portion tip to the tip of the left and right lateral protrusions. 5. Architectural shutters.

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