JP2008063798A - Guide rail structure of sheet shutter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a guide rail which is rotatable by following distortion and bulging of a shutter curtain, wherein the guide rail can always match an upper guide core forming an upper end of the guide rail with a shutter curtain core. <P>SOLUTION: The guide rail structure of a sheet shutter is formed of a guide rail body 2A which is horizontally rotatable, an upper guide 2C which is inhibited from horizontally rotating, and an adjusting section 2B which is located between the guide rail body 2A and the upper guide 2C, and deformable when the guide rail body 2A is rotated. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

The present invention relates to a guide rail structure for a seat shutter, and more particularly, to a guide rail structure that is movable following the bending or swelling of a shutter curtain.

The sheet constituting the shutter curtain of the sheet shutter device is weaker than a shutter curtain made of steel slats, and when a wind pressure exceeding a predetermined level is applied to the sheet, the sheet swells and the end of the sheet comes off the guide rail. There is a fear. Therefore, in order to give the sheet shutter wind resistance strength, a guide rail structure that can move following the swelling and bending of the sheet may be employed. Patent Documents 1 and 2 disclose a movable guide rail that can be rotated in a direction crossing the opening so as to swing the head following the swelling and bending of the seat in a strong wind or the like.

However, as shown in FIG. 7 (corresponding to Patent Document 2), the conventional movable guide rail described in Patent Documents 1 and 2 is a guide from the upper guide at the upper end of the guide rail to the lower end of the guide rail. The entire rail is designed to rotate. Although the rotation of the entire guide rail is advantageous from the viewpoint of wind-resistant pressure strength, on the other hand, when the seat is closed, a deviation occurs between the upper guide core and the seat core. For example, at the time of closing the sheet, if the sheet lowered to some extent swells and the guide rail rotates, the guide rollers at both ends of the sheet may be caught by the upper guide. In addition, the guide rail may repeatedly turn and may have a turning hook, which may cause the lower end of the seat to be caught by the upper guide when the seat is lowered from the fully opened position. .
Japanese Patent No. 3637481 JP 2006-9450 A

It is an object of the present invention to always match the upper guide core constituting the upper end portion of the guide rail with the core of the shutter curtain in the guide rail that can be rotated following the bending or swelling of the shutter curtain. .

The guide rail structure adopted by the present invention is located between a guide rail body that can be rotated in the horizontal direction, an upper guide that is restricted from rotating in the horizontal direction, and the guide rail body and the upper guide. And an adjusting portion that is deformable when the guide rail body rotates. In this specification, “horizontal rotation” means that the guide rail follows the deflection or bulge of the shutter curtain in the horizontal direction (in the direction across the opening or inside / outside the shutter curtain). It means to rotate in the direction). The “horizontal direction” is not limited as long as it rotates in a generally horizontal direction as a whole, and does not necessarily have to be strictly rotated in the horizontal direction. Includes moving objects.

In one preferable aspect, at least a part of the adjusting portion is rotatable in the horizontal direction. In one aspect, although the said adjustment part is comprised integrally with the guide rail main body, a different member may be sufficient as the said adjustment part. For example, a part or all of the adjustment unit may be formed of a member separate from the guide rail body (for example, a part or the whole is made of a flexible member).

In one aspect, at least a part of the adjustment part is formed of a flexible part, and the adjustment part can be deformed in the flexible part. In one preferable aspect, the upper part and the lower part of the adjustment part are composed of flexible parts. In one embodiment, the flexible portion is a thin portion. Alternatively, in another aspect, the adjustment portion forms a plurality of grooves in at least a part, thereby making the portion a flexible portion. Or in another aspect, the said adjustment part can be deform | transformed by the elasticity of guide rail itself which comprises an adjustment part.

In one aspect, at least the guide rail body is movable in the opening width direction. Furthermore, the adjustment unit and the upper guide may be movable in the opening width direction.

In one aspect, at least a part of the adjustment portion is formed of a flexible portion, and the guide rail structure includes an outer guide that houses the guide rail body and the adjustment portion except for the flexible portion. A rail is provided, and the adjustment portion in the flexible portion is allowed to deform. In a more specific mode example, at least a lower part of the adjustment part is composed of a flexible part, and the outer guide rail is flexible so as to allow deformation of the adjustment part in the lower part. A portion corresponding to the guide rail main body and a portion corresponding to the adjustment portion are separated so as to exclude a lower portion consisting of the portions. In an embodiment to be described later, the upper part of the adjustment unit is also formed of a flexible part, and the upper part of the outer guide rail is located above the adjustment part so as to exclude the upper part of the flexible part. The site has not been reached.

In one aspect, the guide rail structure includes an auxiliary rail provided on the bottom of the guide rail body, the adjustment portion, and the upper guide and extending in the vertical direction, and the guide rail body and the adjustment portion. Is supported by a shaft member connected to the auxiliary rail so as to be rotatable in the horizontal direction. In one aspect, the auxiliary rail is a member capable of allowing a predetermined twist. In another aspect, the auxiliary rail includes a portion corresponding to the guide rail body and a portion corresponding to the adjustment portion so as to allow deformation of the adjustment portion in the lower portion, similarly to the outer guide rail. Have been separated.

The guide rail structure according to the present invention can always match the upper guide core and the sheet core without lowering the wind pressure strength even in a strong wind, and therefore prevents the seat from being caught by the upper guide. Can do.

According to the second to fourth aspects of the present invention, it is possible to provide a movable guide rail that can satisfactorily follow the bending or swelling of the shutter curtain.

According to the fifth and sixth aspects of the present invention, the guide rail structure according to the present invention is configured such that when a predetermined force or more is applied to the seat, the guide rail restrained by the outer guide rail expands and the seat end portion is It becomes possible to apply to the guide rail of the structure made to detach | leave.

An overall configuration of a sheet shutter having a guide rail structure according to the present invention will be described with reference to the drawings as appropriate. The sheet shutter device includes a sheet-like shutter curtain 1 that opens and closes a building opening, a pair of guide rails 2 standing at both ends of the building opening, and the upper end of the shutter curtain 1 connected to each other. (Shutter curtain) Winding shaft 3 extending in the width direction, shutter case 4 disposed above the opening of the building and incorporating the winding shaft 3, and a switch (not shown) that drives the winding shaft 3 to rotate. And having.

As shown in FIG. 2, the shutter curtain 1 includes a main body sheet 10 and a plurality of guide bodies (a guide roller 5 and a guide block 5 </ b> A) that are provided at left and right ends in the width direction of the main body sheet 10 with a space in the vertical direction. And an inner bag-shaped portion 11 and an outer bag-shaped portion 12 formed at the lower end of the main body sheet 10, and are positioned immediately above the inner bag-shaped portion 11 to hold the posture extending in the width direction of the main body sheet 10. Bar 6 is provided. Inside the inner bag-shaped portion 11, a pair of left and right bottom weights 7 that are equally disposed on the left and right in the width direction of the main body sheet 10, and a pipe 8 serving as a spacer is provided between the bottom weights 7. An elastic member 9 as a cushion is provided between the inner bag portion 11 and the outer bag portion 12.

The guide rail 2 is a long member extending in the opening height direction, and includes a plurality of guide bodies (a guide roller 5 and a guide block) provided at both left and right ends in the width direction of the sheet body 10 with a space in the vertical direction. 5A) is located in the guide rail 2 during normal times (opening / closing and fully closing). The guide rail 2 is supported by the guide rail support mechanism 20 mounted on the vertical frame 200 on the left and right sides of the building opening, so that the opening width direction X and the horizontal direction (the direction across the opening or the seat body 10 are sandwiched). In the inner and outer directions) direction Y (see FIG. 3), the shutter curtain 1 can be moved following the bending and swelling of the shutter curtain 1.

The guide rail 2 includes a guide rail body 2A, an adjustment portion 2B formed integrally with the upper end of the guide rail body 2A, and an upper guide 2C connected to the upper end of the adjustment portion 2B. The guide rail body 2 </ b> A is supported by the guide rail support mechanism 20 so as to be movable in the opening width direction X and the horizontal direction Y. The upper guide 2C is supported through the guide rail support mechanism 20 so as to be movable only in the opening width direction X, and is not moved in the horizontal direction Y. The adjustment unit 2B is positioned between the upper guide 2C and the guide rail body 2A, and is supported by the guide rail support mechanism 20 so as to be movable in the opening width direction X and the horizontal direction Y. The guide rail body 2A Is configured to be deformable (while rotating) when rotated in the horizontal direction Y. A flexible portion 2B ′ is formed on the surface of the upper portion and the lower portion of the adjusting portion 2B by providing a plurality of grooves extending in the horizontal direction, so that the adjusting portion 2B can be easily deformed in the horizontal direction Y. ing. The flexible portion 2B ′ may be formed from a thin portion instead of the plurality of groove portions. Further, the flexible part 2B ′ may be only one place (preferably on the upper side).

The guide rail support mechanism 20 includes an outer guide rail main body 21A that receives the guide rail main body 2A, an outer guide rail 21B that receives the adjustment portion 2B, a bottom side of the guide rail main body 2A, a bottom side of the adjustment portion 2B, and a bottom side of the upper guide 2C. The auxiliary rail 22 fitted to the vertical frame 200, the concave portion 202 formed in the prospective wall 201 of the vertical frame 200, the first elastic member 13 provided between the outer guide rails 21A and 21B and the outer surface of the concave portion 202, and the vertical frame 200. Inside the plate 16 extending in the height direction, the second elastic member 14 provided between the inner surface of the recess 202 and the plate 16, one end is attached to the auxiliary rail 22, the outer guide rails 21A, 21B, the first The elastic member 13, the recess 202, the second elastic member 14, a bolt (shaft member) 15 extending through the plate 16, and a nut 17 provided at the other end of the bolt A coil spring 18 is provided between the plate 16 and the nut 17, and a city.

The outer guide rail includes the guide rail main body 2A and the adjusting portion 2B except for the upper and lower flexible portions 2B ′ of the adjusting portion 2B. The outer guide rail is located at the lower flexible portion 2B ′ of the adjustment portion 2B, and is separated into an outer guide rail 21A corresponding to the guide rail body 2A and an outer guide rail 21B corresponding to the adjustment portion 2B. The upper end of the lower outer guide rail 21A does not reach the lower flexible portion 2B 'of the adjusting portion 2B, and the lower end of the upper outer guide rail 21B is also flexible below the adjusting portion 2B. The sex site 2B 'is not reached. That is, the lower flexible portion 2B ′ of the adjustment portion 2B is constrained by the outer guide rail by being positioned between the upper end of the separated lower outer guide rail 21A and the lower end of the upper outer guide rail 21B. However, the deformation | transformation in the lower flexible part 2B 'of the adjustment part 2B is permitted. Further, the upper end of the upper outer guide rail 21B does not reach the upper flexible portion 2B ′ of the adjusting portion 2B. That is, the upper flexible portion 2B ′ of the adjusting portion 2B is located above the upper end of the upper outer guide rail 21B, and is not restrained by the outer guide rail, and the upper flexible portion 2B ′ of the adjusting portion 2B. The deformation | transformation in is permitted. The bottom side of the guide rail body 2A, the bottom side of the adjustment unit 2B, and the bottom side of the upper guide 2C are fitted to the auxiliary rail 22. However, if the auxiliary rail 22 capable of allowing a predetermined twist is employed, the auxiliary rail 22 is used. Does not hinder the deformation of the adjusting portion 2B. As with the outer guide rail, the auxiliary rail 22 is separated into two auxiliary rails, an auxiliary rail fitted to the bottom side of the guide rail body 2A and an auxiliary rail fitted to the bottom side of the adjusting portion 2B. May be.

An auxiliary rail 22 is fitted to the bottom of the guide rail main body 2A and the adjustment portion 2B. A pair of fitting pieces are integrally formed on the rear side of the bottom portion of the guide rail body 2A and the adjusting portion 2B. The auxiliary rail 22 is a long member extending in the opening height direction, and a pair of fitting pieces are integrally formed on the front side. The fitting piece of the auxiliary rail 22, the guide rail body 2 </ b> A, and the adjustment unit The guide rail body 2A, the adjusting portion 2B, and the auxiliary rail 22 are integrated by fitting the fitting pieces 2B. The guide rail body 2A, the adjusting portion 2B, and the auxiliary rail 22 can be moved in the opening width direction (X direction) as a unit. At normal times, the guide rail body 2A, the adjusting portion 2B, and the auxiliary rail 22 are all housed in the outer guide rails 21A and 21B. A bolt receiving portion made of a pair of pieces is formed on the rear side of the auxiliary rail 22, and a head formed on one end side of the bolt 15 is received.

The prospective wall 201 of the vertical frame 200 is formed with a concave portion 202, and the first elastic member 13 outside the vertical frame 200 and the second elastic member inside the vertical frame 200 so as to sandwich the prospective wall forming the concave portion 202. 14 is provided. More specifically, the first elastic member 13 is sandwiched between the outer surface of the recess 202 and the outer guide rails 21 </ b> A and 21 </ b> B, and the second elastic member 14 is interposed between the inner surface of the recess 202 and the plate 16. Is pinched. The first elastic member 13 is a long material extending in the opening height direction, and is configured to receive the bottom side portions of the outer guide rails 21A and 21B. In one embodiment, the second elastic member 14 includes a plurality of short materials that are positioned between the inner surface of the recess 202 and the plate 16 and arranged at a predetermined interval in the opening height direction. However, a long material may be used similarly to the first elastic member 13. The bolt 15 penetrates the bottom wall of the outer guide rails 21A and 21B, the first elastic member 13, the expected wall 201 (recessed portion 202) of the vertical frame 200, the second elastic member 14, and the plate 16 to open the width direction. It extends in the (finding direction). One end of the bolt 15 is connected to an auxiliary rail 22 that is integrated with the bottom of the guide rail body 2A and the adjusting portion 2B. A nut 17 is provided at the other end of the bolt 15, and the nut 17 A coil spring 18 is interposed between the plate 16 and the plate 16. The shaft portion of the bolt 15 penetrates through the bottom walls of the outer guide rails 21A and 21B, the prospective wall 201 (recessed portion 202) of the vertical frame 200, and the plate 16 through an insertion hole (not shown). The bolt 15 is movable in the axial direction (opening width direction X) and is rotatable in the horizontal direction Y. Further, since the bolt 15 is elastically supported by the second elastic member 14 and the coil spring 18, the bolt 15 can be moved in the opening width direction X by the compression / return of the second elastic member 14 and the coil spring 18. Further, the first elastic member 13, the second elastic member 14, and the insertion hole (not shown) can be rotated in the horizontal direction Y.

The bottom portion of the upper guide 2C is supported by the bolt 15 via the auxiliary rail 22 in the same manner as the guide rail body 2A and the adjustment portion 2B. Here, the upper end of the plate 16 does not reach the upper guide 2 </ b> C. Instead, the rotation restricting plate 160 is formed from a U-shaped member attached to the vertical wall 200 of the expectation wall 201 (recessed portion 202). Is formed. The bolt 15 penetrates the first elastic member 13, the expected wall 201 (recessed portion 202) of the vertical frame 200, and the rotation restricting plate 160 and extends in the opening width direction (finding direction). One end of the bolt 15 is connected to the bottom of the upper guide 2C, and a nut 17 is provided at the other end of the bolt 15, and the coil spring 18 is interposed between the nut 17 and the plate 160. It is disguised. The shaft portion of the bolt 15 penetrates through the prospective wall 201 (recessed portion 202) of the vertical frame 200 and the rotation restricting plate 160 through an insertion hole (not shown). The insertion hole formed in the movement restricting plate 160 does not have such play that the bolt 15 can rotate in the horizontal direction, the rotation in the horizontal direction Y is restricted, and the bolt 15 is in the axial direction (opening). It is movable only in the width direction X). Further, since the bolt 15 is elastically supported by the second elastic member 14 and the coil spring 18, the bolt 15 can be moved in the opening width direction X by the compression and restoration of the coil spring 18.

By configuring as described above, the guide rail 2 is placed in the opening frame direction X and the vertical frame 200 via the guide rail support mechanism 20 in a state where the rotation of the upper guide 2C of the guide rail 2 is restricted. The guide rail 2 that has received the shutter curtain end follows the deflection and bulge of the shutter curtain 1 by being deformed or / and displaced. It is configured to allow the end of the shutter curtain to be detached from the guide rail 2 when a force exceeding a predetermined magnitude is allowed to move and the shutter curtain 1 is acted upon.

The movement of the guide rail 2 (guide rail main body 2A, adjusting portion 2B, and upper guide 2C) will be described. When force is applied to the shutter curtain 1 and the shutter curtain 1 bends or swells, the end of the shutter curtain 1 is pulled obliquely in the direction away from the vertical frame 200 (opening side), so the guide rail 2 is also Then, it is pulled in a direction away from the vertical frame 200 via the guide body (guide roller 5, guide block 5A). At this time, the guide rail body 2A and the adjusting portion 2B of the guide rail 2 are connected to the bolt 15 via the auxiliary rail 22, and the bolt 15 is also pulled obliquely toward the opening side. When the bolt 15 is pulled obliquely toward the opening, the guide rail 2, the auxiliary rail 22, the bolt 15, and the plate 16 move toward the opening while the second elastic member 14 and the coil spring 18 are compressed. The first elastic member 13 and the second elastic member 14 are elastically deformed, and the bolt 15 is tilted (FIGS. 6D and 6E). At this time, in the guide rail 2, only the guide rail body 2A and the adjusting portion 2B can be rotated in the horizontal direction. Therefore, in the guide rail 2, the guide rail body 2A is rotated in the horizontal direction, and the guide rail body 2A and The adjusting portion 2B between the upper guide 2C is in a state of being rotated and deformed in the horizontal direction. As shown in FIG. 6A, the adjustment portion 2B is deformed so as to be inclined in the height direction (vertical direction) while rotating in the same direction (horizontal direction) as the guide rail body 2A. The amount of displacement of the guide rail body 2A with respect to the upper guide 2C in which the rotation of the guide rail is restricted is adjusted.

As described above, the guide rail 2 according to the present invention is allowed to rotate following the shutter curtain 1 swelled by wind pressure or the like, but the horizontal rotation of the upper guide 2C is restricted. As a result, the upper guide core and the shutter curtain core are not misaligned. As described above, the upper guide 2C is movable in the opening width direction X, and when the wind pressure acts on the shutter curtain 1 and the upper guide 2C is pulled inside the opening, as shown in FIG. Can move.

If the amount of movement of the guide rail body 2A relative to the guide rail support mechanism 20 (outer guide rail 21A) is within a predetermined range, the guide rail 2 automatically returns to its original position when the force acting on the shutter curtain 1 is removed. Will return. The guide rail 2 (guide rail main body 2A, adjusting portion 2B) is made of an elastic member. When the force acting on the shutter curtain 1 exceeds a predetermined magnitude, the guide rail main body 2A comes out of the outer guide rail 21A. When the guide rail main body 2A is deformed in an expanded state without being restricted by the outer guide rail 21A, the guide roller 5 comes out of the guide rail main body 2A (the end of the shutter curtain 1 is detached from the guide rail 2). (FIG. 6E).

Above the guide rail 2, a first guide 23 and a second guide 24 are disposed in the lintel. When the guide body (the guide roller 5 and the guide block 5A) at the end portion of the shutter curtain 1 is detached from the guide rail 2, when the shutter curtain 1 is raised, the end portion of the shutter curtain 1 removed from the guide rail 2 is guided. The edge of the shutter curtain that has been detached is raised by being guided by the first guide 23, and the posture holding bar 6 provided in the vicinity of the lower end portion of the seat body 10 is moved to the second guide 24. Guided to rise. In the fully opened state in which the shutter curtain 1 is wound around the winding shaft 3, the lowermost guide block 5A is positioned above the upper guide 2C (see FIG. 3), and the shutter curtain 1 is lowered from this state. Then, the shutter curtain end part descends while being guided by the guide rail 2, and is accommodated in the guide rail 2.

The present invention can be used for a sheet shutter device.

It is the whole front view and whole side view of a sheet shutter device in an opening part full open state. It is a figure which expands and shows the front view and lower end part of a sheet-like shutter curtain of a sheet shutter device. It is the front view and top view which expand and show the sheet shutter apparatus of FIG. In addition, the opening width dimension and the opening height dimension are shortened. FIG. 4 is a side view of the sheet shutter device of FIG. 3. It is a figure which shows the movable guide rail (when the wind pressure is not acting on a shutter curtain) which concerns on this invention. It is a figure which shows the time of the movable guide rail which concerns on this invention (when a wind pressure acts on a shutter curtain and rotated. It is a figure which shows the structure of the conventional movable guide rail.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Shutter curtain 10 Sheet | seat main body 2 Guide rail 2A Guide rail main body 2B Adjustment part 2C Upper guide 20 Guide rail support mechanism 21A Outer guide rail 21B Outer guide rail 22 Auxiliary rail

Claims (6)

A guide rail body that can be rotated horizontally;
An upper guide that is restricted from turning in the horizontal direction;
An adjustment unit located between the guide rail body and the upper guide and deformable when the guide rail body rotates;
A guide rail structure for seat shutters.   The guide rail structure according to claim 1, wherein at least a part of the adjustment portion is rotatable in a horizontal direction.   The guide rail structure according to claim 1, wherein at least the guide rail body is movable in the opening width direction.   The guide rail structure according to claim 1, wherein the adjustment unit and the upper guide are movable in the opening width direction.   The guide rail structure according to any one of claims 1 to 4, wherein at least a part of the adjustment portion is formed of a flexible portion, and the adjustment portion is deformable at the flexible portion. The guide rail structure includes an outer guide rail that houses the guide rail body and the adjustment unit except for the flexible portion.
The guide rail structure according to claim 5.

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