JP3718792B2 - Slat damage prevention device for upper open shutter - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a slat damage prevention device for an upper open shutter, and more particularly to a device for preventing a slat constituting a slat shutter from coming into contact with and damaging a link constituting a pipe shutter during winding. .
[0002]
[Prior art]
Conventionally, as shown in FIG. 1, there is a so-called upper open type shutter in which an upper part is a pipe shutter 1 and a lower part is a slat shutter 2. The upper part of the shutter curtain is made up of pipe shutters to make it open, and in the event of a fire, smoke is discharged from the upper pipe shutter to prevent the building from being filled with smoke. Moreover, an open part may be used for the purpose of lighting.
[0003]
In such a shutter, as shown in FIG. 2, since the slat shutter is wound on the upper layer of the pipe shutter portion that is wound on the lower layer at the time of winding, the link 7 of the pipe shutter is slatted in the part circled in the figure. 9 (hereinafter referred to as “metal touch”), the slats 9 were scratched, the coating film was peeled off, and the opening / closing sound increased.
[0004]
Technical means for solving such problems are disclosed in Japanese Utility Model Publication Nos. 4-21429, Japanese Utility Model Publication No. 4-4152, Japanese Utility Model Publication No. 5-27684, and Japanese Utility Model Application Publication No. 1-118083. These things still remain a concern for metal touch.
[0005]
In addition, as shown in FIG. In this case, a link member is prepared by connecting a short link 70 via a short pipe 60 so as to be bent, and the upper and lower pipes 6 are connected by the link member, and the width of the short link 70 is large. A ring-shaped buffer member A having a diameter is provided on the pipe 6 and the short pipe 60. In this case, as shown in FIG. 4, the buffer member A comes into contact with the slat 9 relatively well, but the possibility of metal touch still remains in this case.
[0006]
[Problems to be solved by the invention]
The present invention has been made in order to solve the above-described problems, and an object of the present invention is to satisfactorily prevent metal touch in a so-called upper open shutter.
[0007]
[Means for Solving the Problems]
The technical means adopted by the present invention in order to achieve such a problem is that an upper open type shutter having an upper part constituted by a pipe shutter and a lower part constituted by a slat shutter, the pipe shutter comprises a plurality of long pipes extending in the left-right direction. The pipe shutter is configured to be connected in the vertical direction, and the pipe shutter is provided with a buffer member along the link that can be bent in accordance with the bending of the link. The outer peripheral edge of the front and rear of the buffer member protrudes from the outer peripheral edge of the front and rear of the link. Thus, when the shutter curtain is wound, the buffer member comes into contact with the slat, and so-called metal touch is prevented. The buffer member is preferably formed from a resin having high shock absorption.
[0008]
Preferably, the link is configured to be bendable through a short pipe at an intermediate portion in the longitudinal direction. For example, the link is configured by connecting short links so as to be rotatable up and down via a short pipe.
[0009]
Preferably, front and rear outer peripheral edges of the buffer member extend in the left-right direction to form a protruding edge, and are configured to receive the link between the front and rear protruding edges. By doing so, the link is prevented from being detached from the buffer member.
[0010]
In a preferred embodiment, the buffer member is formed with a pipe insertion hole on the upper end side, the upper end edge of the buffer member is formed in an arcuate convex edge, and the lower end edge is formed in an arcuate concave edge. Yes. By doing so, the upper and lower cushioning members can be freely bent in accordance with the bending of the link without interfering with each other.
[0011]
In another preferred embodiment, the buffer member is integrally formed in a stepped shape from the upper half and the lower half, and pipe insertion holes are formed in the upper half and the lower half, respectively. In addition, the upper edge of the upper half and the lower edge of the lower half are formed as arc-shaped convex edges, and the upper half of the upper cushioning member and the upper of the lower cushioning member The halves overlap with each other so as to be rotatable.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described with reference to the drawings. A basic configuration of a so-called upper open shutter will be described with reference to FIG. The upper open type shutter is composed of a pipe shutter 1 having a pipe structure at the top and a slat shutter 2 having a slat structure at the bottom. When the opening of the building is opened, a shutter case 3 provided above the opening is provided. It is wound around the retracted take-up drum 4 and, when the opening is closed, is guided by the guide rails 5 on the left and right sides of the opening and descends to close the opening.
[0013]
In the pipe shutter 1, a plurality of long pipes 6 extending in the left-right direction are arranged at intervals in the up-down direction, and adjacent pipes 6 are connected in series in the up-down direction via links 7. It has become. As shown in each side view showing the winding state, the pipe shutter 1 is connected to the winding drum 4 through a plurality of suspension side slats. The slat shutter 2 is formed by connecting a plurality of slats 9 extending in the left-right direction by interlocking in the vertical direction. A joint plate 8 is connected to the pipe 6 at the lower end of the pipe shutter 1, and the pipe shutter 1 is connected to the slat shutter 2 through the joint plate 8.
[0014]
5 and 6 are diagrams showing a first embodiment of the present invention. The link 7 is a vertically flat plate-like body, and is formed with insertion holes 10 and 11 through which the pipe 6 is inserted at upper and lower ends. The link 7 is rotatable with respect to the pipe 6 by receiving the pipe 6 in the insertion holes 10 and 11. The adjacent link 7 in the vertical direction is superposed such that the lower end portion of the upper link 7 and the upper end portion of the lower link 7 are aligned with the positions of the insertion holes 11, 10. The pipe shutter 1 is formed so that it can be bent by inserting the pipe 6 through 11 and 10. The upper and lower edges of the link 7 are formed as arc-shaped curved convex edges.
[0015]
The pipe 6 is provided with a buffer member 12 made of resin along the link 7. The buffer member 12 is a plate-like body having a desired thickness, and has an insertion hole 13 through which the pipe 6 is inserted at the upper end portion, and extends downward in the length direction of the link 7. The width of the buffer member 12 in the front-rear direction is larger than the width of the link 7 in the front-rear direction, and the front and rear outer edges of the buffer member 12 always protrude in the front-rear direction from the outer periphery of the link 7.
[0016]
The front and rear outer peripheral edges of the shock-absorbing member 12 extend in the left-right direction with respect to the surface of the plate-shaped shock-absorbing member 12 extending in the front-rear direction, whereby projecting edges 14 and 15 are formed, respectively. . The dimension between the inner walls of the projecting edges 14 and 15 is substantially the same as the width dimension of the front and rear of the link 7, and the link 7 is received and sandwiched between the front and rear projecting edges 14 and 15. The front and rear outer peripheral edges of the link 7 are brought into contact with the inner walls of the projecting edges 14 and 15 of the buffer member 12, thereby preventing the link 7 from being detached from the buffer member 12.
[0017]
The upper end side of the buffer member 12 is formed in an arcuate curved convex edge 16, and the lower end side is formed in an arcuate curved concave edge 17, and the lower curved concave edge 17 of the buffer member 12 positioned on the upper side is The curved convex edge 16 at the upper end of the cushioning member 12 located at is received. Therefore, although the end portions of the buffer member 12 adjacent in the vertical direction are close to each other, they can be bent without interference.
[0018]
The length in the vertical direction of the front and rear outer peripheral edges (that is, the projecting edges 14 and 15) of the buffer member 12 is substantially the same as the front and rear parallel outer peripheral edges (portions excluding the curved convex edges) of the link 7. have. The buffer member 12 is rotatable with respect to the pipe 6 via the insertion hole 13, and the buffer member 12 is bent with the bending of the link 7, and the outer peripheral edges of the buffer member 12 are outside the link 7. It always protrudes from the periphery. Therefore, when the shutter curtain is wound up, the front and rear outer peripheral edges (outer walls of the projecting edges 14 and 15) of the buffer member 12 come into contact with each other, and therefore the buffer member 12 also comes into contact with the slat 9. Thus, so-called metal touch can be prevented.
[0019]
The assembly of such a buffer member 12 will be described. The plurality of pipes 6 arranged side by side in the vertical direction are a pair of outer links alternately arranged in the vertical direction (links 7 positioned on the outer side in the horizontal direction when the ends of the upper and lower links 7 are overlapped). It is connected by a pair of inner links (links 7 located inside when the ends of the upper and lower links 7 are overlapped). The buffer member 12 is sandwiched between a pair of opposed links 7. That is, the pipe 6 is inserted through the insertion holes 10 and 13 of the pair of links 7 and the buffer member 12, and the buffer member 12 is sandwiched from the left and right of the pair of links 7, so Provided between the protruding edges 14 and 15. The upper and lower adjacent links 7 are connected in the vertical direction by alternately overlapping the ends through which the pipes 6 are inserted, and the projecting dimensions with respect to the surface portions of the projecting edges 14 and 15 are two links that are superimposed. 7 has a protruding dimension to accept 7. Note that the displacement of the link 7 in the length direction of the pipe 6 is regulated by mounting a known retaining ring located at the end of the link 7. Such a retaining ring is disclosed in, for example, JP-A-7-324569.
[0020]
7 and 8 are views showing a second embodiment of the present invention. The pipes 6 adjacent to each other in the vertical direction are connected by a link member in which two short links 70 are connected to each other vertically by a short pipe 60 so as to be freely bent. That is, the pipe shutter 1 is further bendable at an intermediate portion of the pipe 6 in the vertical direction.
[0021]
The upper and lower length dimensions of the buffer member 12 have dimensions corresponding to the short links 70 and are shorter than those of the first embodiment. The buffer member 12 is a plate-like body having a desired thickness, and has an insertion hole 13 through which the pipe 6 or the short pipe 60 is inserted at a slightly upper end portion in the surface portion, and is linked downward. 70 extends in the length direction. The width of the buffer member 12 in the front-rear direction is larger than the width of the link 70 in the front-rear direction, and the front and rear outer peripheral edges of the buffer member 12 always protrude from the outer periphery of the link 70.
[0022]
The front and rear outer peripheral edges of the buffer member 12 extend in the left-right direction with respect to the surface portion to form the protruding edges 14 and 15, respectively, and the dimension between the inner walls of the protruding edges 14 and 15 is the front and rear of the link 70. The link 70 is received and sandwiched between the front and rear projecting edges 14 and 15. The front and rear outer peripheral edges of the link 70 are brought into contact with the inner walls of the projecting edges 14 and 15 of the buffer member 12, thereby preventing the link 70 from being detached from the buffer member 12.
[0023]
The upper end of the buffer member 12 is formed in an arcuate curved convex edge 16 and the lower end is formed in an arcuate curved concave edge 17, and the lower curved concave edge 17 of the buffer member 12 positioned on the upper side is positioned on the lower side. The curved convex edge 16 at the upper end of the buffer member 12 to be received is received. Therefore, although the end portions of the adjacent buffer member 12 in the vertical direction are close to each other, they can be bent without interfering with each other.
[0024]
The vertical lengths of the front and rear outer peripheral edges (projecting edges 14 and 15) of the buffer member 12 have substantially the same dimensions as the front and rear parallel outer peripheral edges (portions excluding the curved convex edges) of the link 70. is doing. The buffer member 12 is rotatable with respect to the pipe 6 or 60 through the insertion hole 13, and the buffer member 12 is bent with the bending of the link 70, and the outer peripheral edge of the buffer member 12 is always the link 70. It protrudes from the outer periphery. When the shutter curtain is wound up, the front and rear outer peripheral edges (outer walls of the projecting edges 14 and 15) of the buffer member 12 come into contact with each other, and therefore the buffer member 12 also comes into contact with the slat 9. . Further, since the link member according to the second embodiment can be bent at an intermediate portion in the longitudinal direction, the winding is close to a perfect circle and smoother than that according to the first embodiment. Can be taken.
[0025]
The assembly of the buffer member 12 will be described. The pipe 6 or 60 is inserted into the pair of left and right links 70 and the insertion holes 10 and 13 of the buffer member 12, and the pair of left and right links 70 are sandwiched by the buffer member 12 from the left and right. In this manner, the buffer member 12 is provided on the left and right surface portions between the front and rear projecting edges 14 and 15. The upper and lower adjacent links 70 are connected to each other in the vertical direction by alternately overlapping the ends at the portion where the pipes 6 and 60 are inserted, and the projecting dimensions with respect to the surface portions of the projecting edges 14 and 15 are two pieces. It has a dimension corresponding to the thickness of the link 70. Note that the short pipe 60 is prevented from coming off by caulking both ends.
[0026]
9 and 10 are views showing a third embodiment of the present invention. Similar to the second embodiment, the pipes 6 adjacent to each other in the vertical direction are connected to each other by a link member in which two short links 70 are connected to each other by a short pipe 60 so as to be bent. That is, the pipe shutter 1 is further bendable at an intermediate portion of the pipe 6 in the vertical direction.
[0027]
The upper and lower length dimensions of the buffer member 12 have dimensions corresponding to the short links 70 and are slightly larger than the short links 70. The buffer member 12 is integrally formed from an upper half and a lower half, and the upper half and the lower half are integrated with different surface portions in a stepped manner. End edges of the upper half and the lower half are each formed as an arcuate curved convex edge, and through holes 13a and 13b through which the pipe 6 or 60 is inserted are formed.
[0028]
As shown in FIG. 9A, the width in the front-rear direction of the buffer member 12 is larger than the width in the front-rear direction of the link 70, and the outer peripheral edges of the buffer member 12 are outside the link 70. It always protrudes from the periphery.
[0029]
The buffer member 12 positioned above and below is configured such that the stepped portion of the buffer member 12 positioned above receives the upper half of the buffer member 12 positioned below and the buffer member 12 positioned above is inserted. The pipe 6 or 60 is inserted by matching the hole 13b with the insertion hole 13a of the buffer member 12 located on the lower side. Therefore, although the end portions of the buffer member 12 adjacent to each other in the vertical direction are overlapped with each other, they can be bent without interfering with each other.
[0030]
The buffer member 12 is rotatable with respect to the pipes 6, 60, and the buffer member 12 is bent with the bending of the link 70, and the outer peripheral edge of the buffer member 12 always protrudes from the outer peripheral edge of the link 70. Yes. When the shutter curtain is wound up, the front and rear outer peripheral edges of the buffer member 12 come into contact with each other, and therefore the buffer member 12 also comes into contact with the slat 9.
[0031]
The assembly of such a buffer member 12 will be described. The buffer member 12 is connected in a vertically overlapping manner using a step, and a pair of links 70 are attached so as to sandwich the buffer member 12 from the left and right. The pipes 6 and 60 are inserted into the insertion holes 10, 13 a and 13 b of the link 70 and the buffer member 12. Note that the short pipe 60 is prevented from coming off by caulking both ends.
[0032]
【The invention's effect】
In the present invention, when the shutter curtain is wound, the contact surface between the pipe shutter and the slat shutter is always via the buffer member, so that the link constituting the pipe shutter does not directly contact the slat. In addition to preventing scratches, coating film peeling, dents, and the like, it is also possible to reduce open / close noise.
[Brief description of the drawings]
FIG. 1 is a schematic front view of an upper open shutter.
FIG. 2 is a side view showing a state where a conventional upper open shutter is wound up.
FIGS. 3A and 3B are partial views of a pipe shutter showing a means for preventing metal touch, in which FIG. 3A is a side view, FIG. 3B is a front view, and FIG. 3C is an exploded perspective view;
4 is a side view showing a state in which an upper open type shutter provided with the pipe shutter according to FIG. 3 is wound up; FIG.
5A and 5B are partial views of a pipe shutter showing a first embodiment according to the present invention, in which FIG. 5A is a side view, FIG. 5B is a front view, FIG. 5C is an exploded perspective view, and FIG. FIG. 4 is a side view showing a bending mode of the buffer member.
6 is a side view showing a state in which an upper open shutter including the pipe shutter according to FIG. 5 is wound up.
FIG. 7 is a partial view of a pipe shutter showing a second embodiment according to the present invention, in which (a) is a side view, (b) is a front view, and (c) and (d) are exploded perspective views. , (E), (f) are side views showing a bending mode.
8 is a side view showing a state in which an upper open shutter including the pipe shutter according to FIG. 7 is wound up.
9A and 9B are partial views of a pipe shutter showing a second embodiment according to the present invention, in which FIG. 9A is a side view, FIG. 9B is a front view, and FIG. 9C is an exploded perspective view.
10 is a side view showing a state in which an upper open shutter including the pipe shutter according to FIG. 9 is wound up.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Pipe shutter 2 Slat shutter 6 Pipe 60 Short pipe 7 Link 70 Short link 9 Slat 10 Insertion hole 11 Insertion hole 12 Buffer member 13 Insertion hole 13a Insertion hole 13b Insertion hole 14 Projection edge 15 Projection edge

Claims (4)

In the upper open type shutter that consists of a pipe shutter on the upper part and a slat shutter on the lower part, the pipe shutter is constituted by connecting a plurality of long pipes extending in the left-right direction in the vertical direction via links, The pipe shutter is provided with a buffering member that can be bent in accordance with the bending of the link. The buffering member extends in the length direction of the link and is wider than the link. The front and rear outer peripheries of the buffer member protrude from the front and rear outer peripheries of the link , and extend in the left-right direction to form a protruding edge , and the link is interposed between the front and rear protruding edges. An apparatus for preventing damage to slats in an open top shutter, characterized by being configured to receive . The slat damage prevention device according to claim 1, wherein the link is configured to be bent through a short pipe at an intermediate portion in the length direction. The buffer member is formed with a pipe insertion hole on the upper end side, the upper end edge of the buffer member is formed in an arcuate convex edge, and the lower end edge is formed in an arcuate concave edge. The slat damage prevention device according to claim 1. In the upper open type shutter with the pipe shutter at the top and the slat shutter at the bottom,
The pipe shutter is configured by connecting a plurality of long pipes extending in the left-right direction in the vertical direction via a link , and the link can be bent via a short pipe at an intermediate portion in the length direction. Configured,
The pipe shutter is provided with a buffering member that can be bent in accordance with the bending of the link. The buffering member extends in the length direction of the link and is wider than the link. Formed, the front and rear outer peripheral edges of the buffer member project from the front and rear outer peripheral edges of the link,
Further, the buffer member is formed in a stepped shape from the upper half and the lower half, and a pipe insertion hole is formed in each of the upper half and the lower half, and the upper half The upper edge of the lower half and the lower edge of the lower half are formed as arc-shaped convex edges, and the lower half of the upper cushioning member and the upper half of the lower cushioning member rotate relative to each other. An apparatus for preventing damage to slats in an open top shutter characterized by overlapping freely .

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