JP2006016852A - End hardware structure of shutter and slat of shutter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To fix a shutter to a slat accurately and with good accuracy only by adding a simple structure to the end hardware. <P>SOLUTION: An end metal fitting (locking tool 5) is fixed to the mounting surface of the end part of the slat 2 in a slat curtain 1 by welding 6, and the tip thereof is projected from the end edge of the slat 2. The board surface of the end metal fitting is provided with a positioning projection 5c projected to abut on the end edge of the slat 2 to fix the amount of end metal fitting projected and the fitting angle between the end metal fitting and the slat 2. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention is an end metal fitting fixed to a slat end portion of a shutter for building by welding, and is an end fitting used as a retaining tool for securing slats, a wind-resistant hook, or a combination hardware thereof. The present invention relates to a shutter slat fixing structure, or a shutter slat to which the above-mentioned end hardware is fixed, and particularly to a technique for improving the mounting accuracy thereof.

  As a method of connecting the slats constituting the slat curtain of the shutter for buildings, generally, as shown in the conventional example of FIG. 8, the curled portion b that can be engaged with each other along the upper and lower edges of each slat a. , C, respectively, and the corner portion of the edge of the upper curled portion b is cut into a substantially L shape to form a cut portion b1, and the lower curl portion c corresponds to the inside of the width of the edge cut portion b1. A substantially inverted U-shaped notch c <b> 1 is formed at a location to be formed. At the time of assembly, the lower curl portion c of the upper slat a is engaged with the upper curl portion b of the lower slat a and moved along the direction of the arrow so that the upper and lower curled portions b and c serve as joint portions. a is connected so that it can be bent. In this state, the end curl c2 that is outside the notch c1 is located within the excision interval of the excision part b1, and by caulking the end curl c2 so as to bend between the upper and lower slats a, a It is designed to prevent lateral movement.

  In addition to this, in the case of a slat curtain having a relatively wide opening and a heavy weight, there is a risk of pulling out in the lateral direction only by the caulking process. It is fixed to the end.

  The retainer d is generally T-shaped as a whole, and is attached to the front or back mounting surface of the end portion side of the slat a by welding, and on the top side of the mounting plate d1 and above and below the mounting plate d1. It consists of a pair of stopper claws d2 that are integrated in a slightly bent state and protrude from the edge of the slat a, and the end surface of the lower curled part b is applied to the claw part d2, Positioning and retaining are performed.

  As shown in FIG. 9, the retainer d is directly fixed to the slat a before assembly by welding e in advance.

  However, as shown by the solid line in FIG. 9, there is a case where welding is performed obliquely with respect to the edge of the slat a, and in this case, the retaining member d interferes with the end curl c2, As a result, there is a possibility that it is difficult to crimp the end curl c2 because the gap between the slats a and a is shifted to reduce the assembly accuracy and the clearance between the crimped portions is narrowed.

  In this type of shutter, in order to adjust the length of the slat curtain according to the vertical length of the opening of the building, there is a case where the slats a are inserted and removed and the retaining work is performed on the site. When the above-described mounting failure occurs, extra repair work such as scraping off the protruding end face occurs, and an unexpected time is often taken in the final assembly process.

  SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems, and an object of the present invention is to provide an end fitting for a shutter that can be fixed accurately and accurately by adding a simple structure to the end fitting. The object is to provide a shutter slat having a fixed structure and end metal fittings.

  In order to achieve the above object, in the end hardware structure of the present invention, as shown in the embodiment of the figure, the attachment surface (back surface or front surface) of the end of the slat 2 in the shutter slat curtain 1 is welded 6. An end hardware (in the embodiment, the retaining member 5, the wind-resistant hook 10, or the dual-purpose hardware 20) that is fixed and protrudes from the end edge of the slat 2, is a plate surface (front surface or back surface) of the end hardware. ) Is in contact with the edge of the slat 2 and is provided with a positioning projection 5c for positioning the protrusion amount of the end metal fitting and the mounting angle between the end metal piece and the slat 2. It is a feature.

  Further, as shown in the first embodiment of FIGS. 1 to 3, the end hardware of the present invention is a retaining tool for retaining the end face of the connecting portion where the slats 2 are rotatably connected to each other. 5. A plate portion 5a fixed to the mounting surface of the end portion of the slat 2 by welding, and a pair of stoppers that protrude integrally with the top and bottom ends of the plate portion 5a and abut against the end surfaces of the upper and lower connecting portions 4 It has a claw part 5b, and a positioning projection 5c that contacts the end edge of the slat 2 is provided on the plate surface of the retaining member 5. The positioning protrusion 5c is preferably provided at a position substantially along the rear edges of the stopper claw portions 5b and 5b.

  Further, as shown in the second embodiment of FIGS. 4 and 5, the end hardware of the present invention is locked to the inner wall of the guide rail 11 in a state where a lateral pulling force is applied to the slat curtain 1. A wind-resistant hook 10 for retaining the plate 10a that is fixed to the mounting surface of the end portion of the slat 2 by welding; And a hooking portion 10b that abuts against the inner wall of the guide rail 11 by movement, and protrudes from the front end side of the plate portion 10a on the plate surface of the wind-resistant hook 10 so as to abut against the edge of the slat 2. Is provided.

  Further, as shown in the third embodiment of FIGS. 6 and 7, the end hardware of the present invention includes a plate portion 20a fixed to the mounting surface of the end portion of the slat 2 by welding, and a plate portion 20a. A pair of stopper claw portions 20b that protrude integrally with the top and bottom ends of the tip portion and that slats 2 are rotatably connected to each other, and a plate portion 20a between the stopper claw portions 20b. And a metal part 20 having a hook part 20c that abuts against the inner wall of the guide rail 11 by lateral movement of the slat curtain 1, and the plate surface of the metal part 20 includes A positioning projection 20d that contacts the edge of the slat 2 is provided.

A plurality of positioning protrusions may be provided in a plurality of positions at a plurality of positions in contact with the edge of the slat 2.
In the first embodiment shown in FIGS. 1 to 3, the positioning protrusions 5c are circular protrusions, and are provided at two positions above and below substantially along the rear edges of the stopper claw portions 5b and 5b. .
By adopting such a configuration, by attaching the positioning protrusions 5c, 5c of the retaining member 5 at positions above and below the edge of the slat 2, the retaining member 5 is attached to an accurate position without inclination. be able to.

One positioning protrusion may be provided at a position where it abuts against the edge of the slat 2.
As for the shape of the positioning projection in this case, it is desirable that the surface on the end edge side of the slat 2 such as a rectangular protrusion is a linear shape along the end edge. In addition to the rectangular ridges, a polygonal shape such as a semicircular shape or a triangular shape may be used.

  With the above configuration, in the present invention, the amount of protrusion and the angle of protrusion of the end hardware from the slat 2 during welding are uniquely determined by the positioning protrusion, and the quality is always constant.

  Further, in the invention of claim 2, the lateral position of the slat 2 due to the inclination of the stopper claw portion 5b of the retainer 5 and the occurrence of the caulking fixing failure can be prevented in advance, and no repair work is required. In addition, since the time required for repair work cannot be taken, assembly work at the site can be shortened.

  In the invention of claim 3, when the force in the pulling direction is applied to the slat curtain, the action position of the wind-resistant hook 10 is always the same, so there is no variation among products.

  In the invention of claim 4, the combined hardware 10 can be expected to have the same effect as that of the retainer 5 and the wind-resistant hook 10, and the horizontal assembly accuracy of the slats during assembly can be improved and the function of the wind-resistant hook is also used. It can be installed at a fixed position at all times, so there is no product variation.

(First embodiment)
Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. 1 to 3 show a first embodiment in which the present invention is applied to a stopper, FIG. 1 is a perspective view, FIG. 2 is a front view of an essential part, and FIG. 3 is an end view as viewed in the direction of arrow A in FIG. It is.

  In each figure, the slat curtain 1 is formed by horizontally arranging a large number of slats 2 so as to be rotatable in a vertical row. At the top and bottom of each slat 2, there are formed connecting portions that can be engaged with each other, that is, curled portions 3 and 4. The edge of the upper curled portion 3 is cut into a substantially L shape to form a cut portion 3a. The part 4 is formed with a notch 4a inside a portion corresponding to the edge cut part 3a. At the assembly site, the lower curl portion 4 of the upper slat 2 is engaged with the upper curl portion 3 of the lower slat 2, moved along the direction of the arrow in FIG. The slats 2 are connected to each other so that the slats 2 can be bent in the vertical direction with the portions 3 and 4 as joint portions. Thereafter, the end curl 4b defined by the notch 4a is crimped so as to be bent inward to reduce the diameter, thereby preventing the slats 2 from moving in the lateral direction.

  In addition to this, on the end surface of the slat 2, retaining members 5 are fixed in advance for every other slat 2. The retainer 5 is generally T-shaped as a whole, is a relatively thick metal press-molded body, and is a substantially rectangular mounting plate that is fixed to the end mounting surface (the back surface in the drawing) of the slat 2. And a pair of stopper claws 5b that are integrally provided at the top and bottom of the tip of the mounting plate 5a and project in a slightly inclined state toward the inside. At the time of joining, the rear edges of the upper and lower stopper claw portions 5b come into contact with the end edges of the curled portion 4, so that the upper and lower slats 2 and 2 are fixed in a positioned state to prevent the removal.

  Further, on the line connecting the rear edges of the stopper claw portion 5b, a pair of upper and lower welding positioning projections 5c that are tangent to the stopper claw portion 5b are formed to protrude outward by punching. In FIGS. 1 and 2, positioning protrusions are visually recognized as recesses by punching from the back, but FIG. 3 shows a state in which a pair of upper and lower circular protrusions 5c are projected on the front side.

  Therefore, when the above-described retaining member 5 is fixed to the slat 2 by welding, the upper and lower projections 5c are abutted against the edge of the slat 2, as shown in FIG. If the weld 6 is applied to the portion and the rear edge, the fixing is performed accurately and accurately, and the unevenness of the end of the strut 2 due to the inclination and the state where it cannot be caulked can be avoided in advance. In addition, since the allowable tolerance at the end when assembling the slats 2 is about ± 0.5 mm, the processing accuracy of the protrusion 5c may be set so as to be within this tolerance range.

  In the above embodiment, two columnar protrusions 5c are formed by punching, but one rectangular positioning protrusion can be formed by punching into a rectangle along the tangential direction.

(Second Embodiment)
4 and 5 show a second embodiment in which the end hardware of the present invention is applied to the wind-resistant hook 10, FIG. 4 is a front view and an end view of the main part of the shutter end part, and FIG. is there. The same portions as those in the first embodiment are denoted by the same reference numerals, and only different portions and newly added portions are described using different reference numerals.

  In each figure, the wind-resistant hook 10 is fixed to the end edge of the slat 2, and is for preventing the slat 2 from being pulled out from the guide rail 11 fixedly arranged at the end of the slat 2 in the vertical direction. The wind-resistant hook 10 is a relatively thick metal press-molded body as described above, and has a horizontally-long rectangular mounting plate portion 10a fixed to the end mounting surface of the slat 2 and a distal end portion of the mounting plate portion 10a. A pair of positioning projections that are integrally formed in a trapezoidal shape and project in an inclined state toward the outside, and project from the mounting plate 10a with the bent end of the hook 10b as a tangent. 10c. If the welding 6 is applied to both side portions and the rear edge of the mounting plate portion 10a in a state where the positioning projection 10c is abutted against the end edge of the slat 2, the fixing is performed accurately and accurately.

  As shown in FIG. 5, the guide rail 11 is formed such that the opening 11a is slightly wider than the thickness of the slat 2 and the flange 11b is a wide space protruding outward. .

  Therefore, when a pulling force is applied in a direction in which the slat 2 is separated from the guide rail 11 indicated by the arrow due to wind or the like, the hook portion 10b is locked to the side wall step portion of the back portion 11b, and further movement is prevented. Will be.

  In this embodiment, since the protrusion amount of the hook portion 10b from the slat 2 is fixed, the amount of sash lateral movement due to the wind is always constant, and there is no variation from product to product.

(Third embodiment)
6 and 7 show a third embodiment in which the end hardware according to the present invention is applied to a metal fitting 20 for both a fastener and a wind-resistant hook, FIG. 6 is a front view and an end view of the main part, and FIG. 7 is a plan view of the main part. FIG.

  In each of the drawings, the metal fitting 20 is a relatively thick metal press-molded body as described above, and has a substantially square mounting plate portion 20a fixed to the end mounting surface of the slat 2, and a mounting plate portion 20a. The wing-shaped stopper claw portion 20b formed integrally in a state inclined slightly inward and downward at the top and bottom of the tip portion, and a trapezoidal shape at the center of the tip portion of both stopper claw portions 20 are integrally provided. And a pair of positioning projections 20d projecting from the mounting plate 20a with the rear edges of both stopper claws 20b as tangents. If the positioning projections 20d are abutted against the end edges of the slats 2 and the welds 6 are applied to both side portions and the rear edge of the mounting plate portion 20a, the slats 2 can be fixed accurately and accurately. Can be accurately aligned by the stopper claw portion 20b, and in this state, the end curl 4b of the lower curl 4 can be easily crimped.

  In addition to the above, the guide rail 21 for receiving the end portion of the slat 2 equipped with the dual-purpose hardware 20 has an opening 11a slightly wider than the thickness of the slat 2, as shown in FIG. It is formed to be a wide space protruding inward.

Therefore, when a pulling force is applied in a direction in which the slat 2 is separated from the guide rail 21 indicated by the arrow due to wind or the like, the hook portion 20c is locked to the side wall step portion of the back portion 21b, and further movement is prevented. Will be.
Therefore, in the present embodiment, the positioning function of the slat 2 and the function as a wind-resistant hook can be combined.

  The shutter end metal structure and the shutter slat according to the present invention include a shutter having a slat curtain portion in which at least a part of the shutter curtain is formed of a slat, for example, a shutter curtain having a grill curtain portion connected to the slat curtain portion. Of course, it is also applicable to.

It is a principal part perspective view which shows the edge part of the shutter by the 1st Embodiment of this invention. It is the principal part front view. FIG. 3 is an end view in the direction of arrow A in FIG. 2. It is the principal part front view and end elevation figure of the shutter edge part by 2nd Embodiment. It is the principal part plane sectional drawing. It is the principal part front view and end elevation in a 3rd embodiment. It is the principal part plane sectional view It is a perspective view which shows the edge part of the conventional shutter. It is a principal part front view which shows the malfunction in the past.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Slat curtain 2 Slat 3, 4 Curl part 3a Cut part, 4a Notch, 4b End curl 5 Stopper 5a Mounting plate part, 5b Stopper claw part, 5c Positioning protrusion 10 Wind-resistant hook 10a Mounting plate part, 10b Hook Part, 10c Positioning protrusion 20 Combined metal 20a Mounting plate part, 20b Stopper claw part, 20c Hook part, 20d Positioning protrusion 11, 21 Guide rail

Claims (7)

An end hardware fixed to the mounting surface of the slat end of the shutter by welding and having a tip protruding from the edge of the slat,
On the plate surface of the end hardware, a positioning projection is provided in contact with the edge of the slat to position the protrusion amount of the end hardware and the mounting angle between the end hardware and the slat. An end hardware structure of the shutter characterized by that. The end hardware is a retainer for retaining the end face of the connecting portion where the slats are connected to each other so as to be rotatable, and a plate portion fixed to the mounting surface of the end portion of the slat by welding, and a plate portion A pair of stopper claws that protrude integrally with the top and bottom of the tip and are abutted against the upper and lower connecting portion end faces,
2. The shutter end metal structure according to claim 1, wherein a positioning projection abutting against an end edge of the slat is provided on a plate surface of the retaining member. The end hardware is a wind-resistant hook that is locked against the inner wall of the guide rail in a state where a lateral pulling force is applied to the slat curtain, and is fixed to the mounting surface of the slat end by welding. A plate portion, and a hook portion protruding integrally with the tip portion of the plate portion, and abutting against the inner wall of the guide rail by lateral movement of the slat curtain,
2. The shutter end metal structure according to claim 1, further comprising a positioning projection that protrudes from a front end side of the plate portion on the plate surface of the wind-resistant hook and comes into contact with an edge of the slat. The end hardware includes a plate portion fixed by welding to a mounting surface of the slat end portion, and upper and lower connecting portion end surfaces that protrude integrally with the top and bottom ends of the plate portion and that the slats are rotatably connected to each other. A pair of stopper claws that are abutted against the hook and a hook that projects integrally with the tip of the plate portion in the middle of both stopper claws and abuts against the inner wall of the guide rail by lateral movement of the slat curtain Hardware,
2. The shutter end metal structure according to claim 1, wherein a positioning projection abutting against an edge of the slat is provided on a plate surface of the dual purpose metal plate.   5. The shutter end metal structure according to claim 1, wherein a plurality of the positioning protrusions are protruded at a plurality of positions in contact with the edge of the slat.   6. The positioning projection according to claim 1, wherein a surface of the slat on the edge side, such as a rectangular ridge, a semicircular shape, or a polygonal shape, has a linear shape along the edge. An end metal structure of the shutter according to claim 1.   The shutter slat according to any one of claims 1 to 6, wherein the end metal fitting according to any one of claims 1 to 6 is welded and fixed in a state in which the positioning projection is in contact with an end edge of the slat.

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