JP2008019626A - Building shutter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To constitute a building shutter so that a shutter curtain can be surely prevented from coming off from a guide rail. <P>SOLUTION: A pair of protrusive streaks 9a and 9b, which constitutes a mohair pocket 9, is formed on the inner surface of the outdoor-side groove side piece 3b of the guide rail 3. When the shutter curtain 1 is bent by receiving a strong wind, a locking recess 6 formed in a slat 2 is put into such a bent attitude as to be locked to the protrusive streak 9a on the back side of the groove. A horizontal outer end 2a of the slat 2 abuts on a bending regulating protrusion 3d, which is formed on the side piece 3a, along with the shift of the attitude of the slat to the bent attitude, so that the further bending of the slat can be regulated. <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 escape from the guide rail. Therefore, conventionally, wind-resistant hooks are provided at the ends of the slats constituting the shutter curtain, and the wind-resistant hooks are locked to locking portions provided on the guide rails to prevent them from coming off. 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 as a locking portion is formed at the left and right end portions inserted into the guide rail of the slat, and the locking recess is parallel to the groove depth direction of the guide groove protruding from the inner surface of the guide rail. There are known ones that are locked to a mohair pocket formed by the above-mentioned protrusions to prevent the shutter curtain from coming off (for example, Patent Documents 1 and 2).
Japanese Patent No. 3479741 Japanese Patent No. 3596814

  In this case, the above-mentioned Patent Document 1 is configured to prevent the shutter curtain from coming off from the guide rail by locking the locking recess formed on the slat to the protrusion on the groove depth side of the guide rail. Moreover, the thing of the said patent document 2 becomes a structure which is prevented from coming off by latching the latching recessed part formed in a slat on the protrusion of the groove opening side of a guide rail. For this reason, in any case, when the load on the slat is increased and the bending is increased, there is a problem that the engagement between the engagement recess and the protrusion is likely to be released. There are issues to be solved.

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 an architectural shutter constructed by loosely fitting the left and right ends of a curtain to a guide rail having a pair of indoor and outdoor groove side pieces, a protrusion is provided on the inner surface of at least one groove side piece of the guide rail indoors and outdoors. On the other hand, a locking portion that locks the ridge is formed on the slat, and when the shutter curtain is bent by a strong wind, the locking portion locks on the ridge and prevents the shutter curtain from coming off. In this configuration, the other groove side piece of the guide rail is in contact with the left and right outer ends of the slats which are in a bent posture by the locking portions being locked to the ridges, Deflection regulation protrusion that regulates the bend Is an architectural shutter There has been formed.
The invention of claim 2 is configured such that the contact between the lateral end of the slat in the left-right direction and the deflection regulating projection is made at a stage before the locking of the locking portion and the protrusion is released. The architectural shutter according to claim 1.
According to a third aspect of the present invention, the protrusion of the guide rail is constituted by a protrusion on the back side of the groove of the pair of protrusions formed in parallel in the groove depth direction so as to form a mohair pocket on the groove side piece. On the other hand, the locking portion of the slat is formed by a locking recess formed by cutting out the slat, and the contact between the left and right outer end portions of the slat and the deflection regulating projection is on the locking recess and the groove back side. 3. The architectural shutter according to claim 1, wherein the shutter is configured to be engaged with the protrusion, and the groove bottom surface of the engagement recess is in contact with the protrusion on the groove opening side.

According to the first aspect of the present invention, the locking state between the locking portion of the shutter curtain and the protrusion of the guide rail can be stably maintained. Dispersed to protect the slat and the guide rail.
The invention according to claim 2 ensures that the shutter curtain is prevented from coming off from the guide rail.
According to the invention of claim 3, the members can be shared, and the locking of the protrusions and the locking portions is ensured, and the locking load is dispersed so that the slats and the guide rails are Can be protected.

Next, a first embodiment 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. It is assembled in a state in which the left and right ends are swallowed (inserted) into the guide groove formed in the rail 3. 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 has an upper coupling portion (upper interlocking piece) 4 and a lower coupling portion (lower interfacing portion) at the upper and lower edges. Lock pieces) 5 are respectively formed, and the slats 2 are interlocked with each other by slidingly inserting the upper coupling portion 4 into the lower coupling portion 5 from the left-right direction.

  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 positioned slightly outside in the left-right direction with respect to the left and right end positions of the cut-off portion 4a. A punched portion 5a is formed by punching from the left and right end positions to the inner side in the left-right direction. The interlocked slats 2 are crushed in the left and right direction from the punched portion 5a of the lower coupling portion 5 to form a crushed portion 5b. And the upper and lower side coupling parts 4 and 5 are adjacent slats by cutting edges (edges) formed by the left and right outer end edges of the cut-off part 4a and the left and right outer end edges of the punched part 5a. It is set so as to perform position restriction (movement restriction) between the two, so that the slats 2 are connected in a positioning manner so that the dimension management of the left and right positions of the shutter curtain 1 is facilitated. ing.

  Further, the upper and lower side coupling portions 4 and 5 are cut out at positions on the inner side in the left and right direction with respect to the retaining portion, and cutout portions (punching holes) 4c and 5c are formed, and the cutout portions 4c and 5c are formed. Thus, as will be described later, an engaging recess 6 corresponding to the locking portion of the present invention is formed. The upper notch portion 4 c formed in the upper coupling portion 4 has both left and right 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 cutout portion 5c formed in the lower coupling portion 5 is cut 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 cut out at a right angle. It has been. The upper and lower cutouts 4c and 5c have outer end edges 4e and 5e cut out at the same position in the left-right direction, but the inner end edges 4d and 5d are on the lower side of the interlock coupling surface. The inner notch 5d of the notch 5c is notched with a dimension setting such that the inner notch 4d is located on the outer side in the left-right direction with respect to the inner notch 4d of the upper notch 4c, whereby the upper notch 4c is cut into the lower notch. When the slats 2 are assembled in the left-right direction with respect to 5c and the slats 2 are assembled in the above-described retaining shape, the engagement recess 6 is in a state where the inner edge 4d is hidden by the inner edge 5d. The left and right direction inner edge 6a (formed by the inner edge 5d) is inclined, and the left and right direction outer edge 6b (formed by the outer edges 4e and 5e) is set to have a right angle. .

On the other hand, the guide rail 3 includes a pair of indoor and outdoor groove-side pieces 3a and 3b, and is formed of a substantially U-shaped groove material having an opening in the left and right direction. Are formed with mohair pockets 8 and 9 for insertion and incorporation of mohair 7. The mohair pocket 9 on the outdoor side is constituted by a ridge 9a on the groove back side (laterally outer side) and a ridge 9b on the groove opening side (laterally inner side).
Furthermore, the deflection regulating projection 3d of the present invention is integrally formed on the indoor groove side piece 3a so as to project toward the outdoor side, and the shape of the deflection regulating projection 3d will be described later. , Formed in a predetermined portion based on a preset amount of protrusion, and configured to more stably and reliably carry out the restriction (prevention of slipping) of the shutter curtain 1 from the guide rail 3. ing.

That is, in a normal state in which 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) with respect to the mohair pocket 9 (FIG. 6 ( A))), when the shutter curtain 1 bends to the outdoor side 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 reaching the position of the mohair pocket 9, the outer edge 6b in the left-right direction is locked to the protrusion 9a on the back side of the groove to be prevented from coming off. Here, the locking recess 6 is configured to be locked to the protrusion 9a on the groove back side of the mohair pocket 9 formed in the guide rail 3, and is locked to the protrusion 9b formed on the groove opening side. The slats 2 are less bent than the case where they are made. As a result, the bending is controlled in a bending state with a small stage before the residual strain (deformation) occurs in the slat 2, and the deformation remains when the slat 2 returns to the normal state from the bending posture. Care is taken to avoid problems.
In this case, the length X of the groove bottom surface 6c of the locking recess 6 is set to be longer than the length Y from the tip of the protrusion 9a on the groove back side to the tip of the protrusion 9b on the groove opening side. (See FIG. 6C). And the latching recessed part 6 is the range of the two-point support state in which the left-right direction outer side edge 6b latches to the groove | channel 9a on the groove depth side, and the groove bottom face 6c latches to the protrusion 9b on the groove opening side. While the slat 2 is in a bending posture (see FIG. 6B), a bending regulating projection 3d is formed on the indoor groove side piece 3a of the guide rail 3. Then, the deflection regulating projection 3d moves in the left-right direction as the slat 2 becomes an arbitrary deflection posture set in advance (the posture indicated by a solid line in FIG. 6B) in the range of the deflection posture of the slat 2. The dimensions are set so that the outer end 2a comes into contact. That is, the left and right outer end 2a of the slat 2 and the deflection regulating protrusion are in a stage before the locking between the left and right outer end edge 6b of the locking recess 6 and the groove back side protrusion 9a is released (disengaged). It is set so as to make contact with 3d. Then, along with the arbitrary bending posture, the left and right end 2a of the slat 2 comes into contact with the bending restricting projection 3d, and the load in the direction in which the slat 2 is bent beyond the arbitrary bending posture is applied. When it acts, the deflection of the slat 2 is regulated in a state where the laterally outer end 2a is in pressure contact with the deflection regulating projection 3d, and thereby, the deflection exceeding the deflection posture of the slat 2c is regulated. .

At this time, in addition to the two-point support state by the groove back side protrusion 9a and the groove opening side protrusion 9b, the slat 2 has the slat left and right outer end portion 2a in contact with the bending restricting protrusion 3d. As a result, the slat 2 is restrained from being bent while being supported by the guide rail 3 at three locations, and the locking state between the locking recess 6 and the groove-side protrusion 9a can be maintained in a stable state. Yes. And in the said bending | flexion control state (detachment prevention state), when the further bending load acts on the slat 2, the reaction force that the left-right direction outer end part 2a presses against (becomes pressed) the bending control protrusion 3d, Acting toward the direction in which the locking force between the locking recess left and right outer end edge 6a and the groove rear side protrusion 9a is increased and the direction in which the locking recess groove bottom surface 9c strongly presses the protrusion 9b on the groove opening side. Accordingly, the slat 2 is set to be more stable and reliable in preventing the slat 2 from coming off from the guide rail 3.
Further, at this time, since the slat 2 is bent in a three-point support state of the pair of protrusions 9a and 9b and the bending restricting protrusion 3d, the locking load between the slat 2 and the guide rail 3 is reduced. The slats 2 and the guide rails 3 are configured to be distributed so as to protect both.
Here, in the normal state in which the shutter curtain 1 is loosely fitted to the guide rail 3, the formation position of the deflection restricting protrusion 3 d on the guide rail 3 is the groove back side of the mohair pocket 9 and the horizontal direction of the slat 2. It is set to be closer to the groove opening than the outer end 2a. Further, the shape (projection amount) of the deflection restricting projection 3d is the shape of the slat 2, the position where the locking recess 6 is formed in the slat 2, the groove depth of the locking recess 6, and the protruding length of the protrusions 9a and 9b. These are determined by setting the component elements and the limit angle of the deflection state of the slat 2, and the contact timing can be set based on these elements.

  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, each slat 2 becomes a bend posture and the laterally outer edge of the locking recess 6. 6b is locked to the protrusion 9a on the back side of the groove of the mohair pocket 9 and is prevented from coming off from the guide rail 3 of the shutter curtain 1. In this case, the slat 2 is moved to the right and left as it assumes a predetermined bending posture. The outer end 2a in the direction abuts against the deflection regulating projection 3d and further deflection of the slat 2 is regulated, the slat 2 is further bent from the locked state, and the locking recess 6 is formed from the groove rear projection 9a. It is possible to prevent it from slipping out and being locked to the groove opening side ridge 9b, or even from slipping out of the guide rail 3. In this way, the bending restricting projection 3d abuts on the outer end 2a in the left-right direction of the slat 2 in an arbitrary bending posture and restricts further bending of the slat 2, so that the locking recess 6 and the groove The locked state with the back-side protrusion 9a can be stably maintained, and a reliable retaining can be achieved. In addition, since the bending of the slat 2 is supported at three points by the pair of protrusions 9a and 9b and the bending restricting protrusion 3d, the locking load is dispersed, and both the slat 2 and the guide rail 3 can be protected.

  Furthermore, in the case where the present invention is implemented, at a stage before the slat 2 is bent and the locking between the lateral outer edge 6b of the locking recess 6 and the protrusion 9a on the groove back side is released. Since the contact between the left and right outer end 2a of the slat 2 and the bending restricting protrusion 3d is made, further bending of the slat 2 can be restricted, and further in the bending restricting state, When a load (flexing force) acts on the slat 2, the load acts in a direction to lock the locking recess 6 and the protrusion 9a, so that the locking is stable and reliable. Therefore, it is possible to provide a highly reliable stopper.

  In addition, in this device, the locking portion formed in the slat 2 is constituted by the locking recess 6 formed by the upper and lower cutout portions 4c and 5c provided in the connecting portion between the upper and lower interlocking pieces 4 and 5, and the guide Since the ridge formed on the rail 3 is constituted by the ridge 9a on the back side of the groove of the mohair pocket 9, it can be used as a member. However, in this case, the laterally outer end portion 2a of the slat 2 is bent and restrained. In the state of contacting the portion 3d, the locking recess 6 is locked or supported by the protrusions 9a and 9b on both the groove back side and the groove opening side. As a result, the bending load acting on the slat 2 is the abutting portion between the slat 2 and the guide rail 3, the left and right outer end 2 a, the bending restricting projection 3 d, the locking recess left and right outer end edge 6 b It will be received by the three contact portions of the protrusion 9a on the back side of the groove, the bottom surface 6c of the locking recess groove and the protrusion 9b on the groove opening side, and not only can the retaining effect be further enhanced, The load acting on the slat 2 can be distributed and received at three locations, and the slat 2 and the guide rail 3 can be protected.

Of course, the present invention is not limited to the above-described embodiment, and the same applies to the indoor mohair pocket and the guide rail indoor side groove side piece when it is necessary to prevent the indoor side from coming off. It is possible to cope with this configuration.
In addition, the locking portion can be formed on the abdomen of the slat without being formed on the interlock coupling portion, and further, a separate member may be attached.

Further, the present invention can be configured as in the second and third embodiments shown in FIGS. 7A and 7B, for example. In the second embodiment, the protrusion 10a on the groove back side of the mohair pocket 10 formed on the groove side piece 3b on the outdoor side of the guide rail 3 has a larger protruding amount than the protrusion 10b on the groove inlet side. Except for this, the configuration is the same as that of the above embodiment. And in this thing, the left-right direction outer side edge 6b of the latching recessed part 6 latches to the protrusion 10a on the groove | channel back side, and the groove bottom face 6c of the latching recessed part 6 contact | abuts to the protrusion 9a on the groove opening side. As a result, the laterally outer end 2a of the slat 2 comes into contact with the deflection regulating protrusion 3d formed on the indoor groove side piece 3a, and the slat 2 is further bent. It is set to regulate In this case, the slat 2 is bent so that the locking recess 6 is locked to the protrusion 10a having a large protruding amount, and the laterally outer end 2a is formed on the bending regulating protrusion 3d formed on the indoor groove side piece 3a. By contacting, the locked state becomes more stable and reliable, and the locking load can be dispersed.
Further, in the third embodiment, the mohair pocket 11 formed on the outdoor groove side piece 3b has the protrusion 11a on the groove back side biased toward the shutter curtain 1 side (opening side). The slats 2 are formed in an inclined shape so as to protrude from the ridges 11b on the groove opening side. By doing so, the bending posture of the slats 2 is the same as in the second embodiment. Thus, when the outer end 2a in the left-right direction abuts against the deflection restricting protrusion 3d formed on the indoor groove-side piece 3a, the engaging recess 6 is engaged with the protrusion 11a having a large protruding amount. The state becomes more stable and reliable, and the locking load can be distributed.
Incidentally, in the second and third embodiments, the protruding amount of the protrusions 10a and 11a to which the locking recess 6 is locked is long, and in these cases, the protruding amount of the bending restricting protruding portion 3d is set. , Which is as small as the mohair pocket 11.

  Furthermore, in the fourth embodiment shown in FIG. 8 (A), the mohair pocket 12 formed in the outdoor guide rail groove side piece 3b has a protrusion on the back side of the groove as in the second embodiment. It is formed so that the protruding amount of 12a becomes large. And in this thing, it forms so that the height to the front-end | tip of the mohair pocket 13 formed in the indoor side guide rail groove side piece 3a may become the same height as the protrusion 12a of a groove | channel back side, The center position between the side pieces 3a and 3b and the center position between the front end surfaces of the mohair pockets 12 and 13 (guide center position of the shutter curtain) are configured to coincide with each other. Even in this case, in the bending posture of the slat 2, the laterally outer end 2a is brought into contact with the bending restricting protrusion 3d formed on the indoor groove side piece 3a, whereby the locking recess 6 and the protrusion 12a. The locked state becomes more stable and reliable, and the locking load can be distributed.

  Further, in the fifth embodiment shown in FIG. 8B, mohair pockets 8 and 9 similar to those in the first embodiment are formed in the groove side pieces 3a and 3b inside and outside the guide rail 3, respectively. The lateral outer end 2a of the slat 2 has a deflection regulating projection formed on the indoor-side groove-side piece 3a in accordance with the bending posture in a state where the locking recess 6 is locked to the protrusion 9b on the groove opening side. The structure abuts against the portion 3d, and this structure also makes it possible to stabilize the locked state and to distribute the locking load.

  Furthermore, the protrusion provided on the guide rail side does not necessarily have to be used as a mohair pocket. The protrusion is formed on the opening side of the groove-side piece, and the mohair pocket is formed on the groove back side of the protrusion. You may comprise. On the other hand, the latching portion provided on the shutter curtain side may be configured to separately attach a retaining member to the slat.

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), (D) are a plan view, a front view, a bottom view, and a side view of a slat, respectively. (A), (B), (C) is an enlarged side sectional view, an enlarged side view, and an enlarged front view of the interlock coupling portion of the engaging recess portion of the interlock coupling portion, respectively. The shutter curtain is fitted to the guide rail, and (A) is a diagram illustrating the normal state in plan view, and (B) is a plan view illustrating the state in which the shutter curtain is bent and prevented from coming off. FIG. 4C is an enlarged plan view of the main part. (A), (B) is a top view which shows 2nd, 3rd embodiment, respectively. (A), (B) is a top view which shows 4th, 5th embodiment, respectively.

Explanation of symbols

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

Claims (3)

  In the architectural shutter constituted by loosely fitting the left and right ends of a shutter curtain formed by connecting a plurality of slats in a series with a guide rail having a pair of indoor and outdoor groove side pieces, the guide rail A ridge is formed on the inner surface of at least one groove side piece of the indoor and outdoor, and a locking portion is formed on the slat to be locked to the ridge. When the shutter curtain is bent by a strong wind, it is locked. When the portion is locked to the ridge to prevent the shutter curtain from coming off, the other groove side piece of the guide rail has a slat of a slat in which the locking portion is locked to the ridge and assumes a bending posture. An architectural shutter in which a deflection regulating projection that abuts against the outer end in the left-right direction and regulates further deflection of the slat is formed.   The contact between the left and right outer ends of the slats and the bending restricting protrusion is configured to be performed at a stage before the locking between the locking portion and the protrusion is released. Architectural shutter.   The guide rail ridge is composed of a protrusion on the back side of the groove of a pair of protrusions formed in parallel in the groove depth direction to form a mohair pocket on the groove side piece, while locking the slat The locking recess is formed by cutting out the slat, and the contact between the left and right outer ends of the slat and the deflection restricting protrusion is locked between the locking recess and the protrusion on the back of the groove. The architectural shutter according to claim 1, wherein the shutter is configured such that the groove bottom surface of the locking recess comes into contact with the protrusion on the groove opening side.

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