JP7592566B2 - shutter - Google Patents

Description

The present invention relates to a shutter equipped with a winding pipe, such as a steel pipe, formed by joining metal plates.

Conventionally, an external shutter is known that includes a shutter frame, a shutter surface material supported by the shutter frame, and a shutter case that houses the shutter surface material, and inside the shutter case is installed a cylindrical rotating drum that can wind up the shutter surface material (see Patent Document 1). This rotating drum is made of, for example, an aluminum extrusion.

JP 2015-151843 A

Incidentally, it is possible to reduce costs by constructing the rotating drum in the external shutter described in Patent Document 1 not from an extruded profile, but from a winding pipe formed into a cylindrical shape by joining the longitudinal edges of a roll-formed metal plate by crimping or the like.
However, the above-mentioned winding pipe has a joint formed between the edges of the metal plate, and if this joint comes into contact with the shutter face material, it can cause damage to the shutter face material, and if the shutter face material is damaged, it could detract from the design of the shutter.

The object of the present invention is to provide a shutter that can maintain its design.

The shutter of the present invention comprises a shutter surface material formed by connecting a number of slats, and a winding pipe to which the shutter surface material is connected so that it can be rolled up. The winding pipe is formed into a cylindrical shape from a metal plate with its edges joined together, and the shutter surface material abuts against the winding pipe at multiple points in the circumferential direction when rolled up, and these abutment positions are different in the circumferential direction of the winding pipe with respect to the joint positions of the edges.

The present invention makes it possible to provide a shutter that maintains its design.

FIG. 2 is a vertical cross-sectional view of the shutter according to the embodiment of the present invention. FIG. 2 is an explanatory diagram showing a main part of the shutter according to the embodiment.

[Configuration of this embodiment]
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
In Fig. 1, a shutter 1 according to this embodiment is provided on the outdoor side of an opening in an exterior wall of a building such as a detached house. The aforementioned opening is provided with a window frame 2 formed of an upper frame 21, a lower frame 22, and left and right vertical frames 23. The shutter 1 includes a shutter frame 3, a shutter surface material 4 supported by the shutter frame 3 so as to be able to open and close vertically and to be rolled up upward, and a shutter case 5 for storing the rolled up shutter surface material 4. Inside the shutter case 5, a cylindrical winding pipe 6 capable of winding up the shutter surface material 4 is provided.
In the following description, the Y-axis direction is the up-down direction of the shutter 1, and the Z-axis direction perpendicular to the Y-axis direction is the projection direction of the shutter 1. The direction perpendicular to the Y-axis and Z-axis directions is the left-right direction of the shutter 1.

The shutter frame 3 has left and right shutter vertical frames 31. The shutter surface material 4 has multiple steel slats 41 connected vertically, and as shown in FIG. 2, the uppermost slat 41A of the multiple slats 41 is screwed to the winding pipe 6 using a screw 7 and a back plate 8, and slats 41B, 41C, 41D, ... are connected to the uppermost slat 41A. The shutter case 5 is disposed above the left and right shutter vertical frames 31. Both ends of the winding pipe 6 in the longitudinal direction are supported by the shutter case 5 so that they can rotate around the axis C (see FIG. 2). The shutter case 5 has an opening 51 through which the shutter surface material 4 passes.

Each slat 41 has connecting portions 42 formed on both sides in the width direction and connected to the adjacent slats 41, abutting portions 43 continuous with each connecting portion 42 and abutting against the winding pipe 6 in the winding state, and intermediate portions 44 continuous with each abutting portion 43. The abutting portions 43 are disposed on one side in the thickness direction perpendicular to the longitudinal direction and width direction of the slat 41 with respect to the connecting portions 42 and the intermediate portions 44, and in the winding state, the intermediate portions 44 are disposed at a position away from the outer periphery with respect to the joining position by the crimping portion 65 described later. Therefore, in the winding state, the shutter surface material 4 abuts against the winding pipe 6 at a plurality of points (abutting portions 43) in the circumferential direction, and the connecting portions 42 and the intermediate portions 44, which are at different connecting positions in the circumferential direction with respect to the abutting positions, are disposed away from the outer periphery with respect to the winding pipe 6. The circumferential direction described above is along the R direction rotating around the axis C of the winding pipe 6. In this embodiment, the third slat 41C connected to the slat 41A is disposed on the outer periphery side of the crimped portion 65. As shown in FIG. 1, the slats 41A to 41C are disposed so that they do not protrude from the opening 51 of the shutter case 5 even when the shutter face material 4 is extended. Therefore, even if the slat 41C is damaged, it is not noticeable in terms of design. The dimension from the contact position of the contact portion 43 of the slat 41C against the winding pipe 6 to the crimped portion 65 is larger than the dimension L (width of the crimped portion 65) between both edges along the longitudinal direction of the crimped portion 65 (left-right direction of the shutter 1). The width of the slat 41 is about 41 mm.
The contact position of the shutter panel 4 having the above-mentioned multiple slats 41 against the winding pipe 6 differs in the circumferential direction of the winding pipe 6 from the joining position of the edge portions 62, 63 by the crimping portion 65 described below.

The winding pipe 6 has a pipe main body 61 roll-formed from a steel plate as a metal plate, and a crimping portion 65 as a joint that joins edge portions 62, 63 along the longitudinal direction of the pipe main body 61 (left and right direction of the shutter 1), and the pipe main body 61 is formed into a cylindrical shape by crimping using the crimping portion 65.
The pipe body 61 has recesses 611, 612 recessed toward the inner periphery and a positioning portion 613 for positioning the mounting position of the uppermost slat 41A relative to the winding pipe 6, which are formed along the longitudinal direction of the pipe body 61. As shown in FIG. 2, the recess 611 has a pair of side pieces 614 and a bottom piece 615, and a locking piece 616 folded back from each of the pair of side pieces 614. In the recess 611, a plurality of back plates 8 are arranged at a predetermined interval along the longitudinal direction of the pipe body 61, and the above-mentioned locking piece 616 locks the back plates 8 so that they do not fall off. The recess 612 is formed with a pair of side pieces 617 and a bottom piece 618, and the recess 612 fits into an accessory such as an auxiliary wheel 9 (see FIG. 1) in the circumferential direction of the winding pipe 6. In this embodiment, the auxiliary wheel 9 is arranged in the hollow portion of the winding pipe 6 to reinforce the winding pipe 6. Therefore, the necessary strength can be obtained for the winding pipe 6 without providing a reinforcing part on the outer periphery of the winding pipe 6, and the tubular shape (approximately cylindrical shape) of the winding pipe 6 can be maintained.
The recesses 611, 612 are located on an imaginary line V1 connecting the attachment position where the slat 41A is attached to the winding pipe 6 and the axial center position through which the axial center C of the winding pipe 6 passes. When the shutter face material 4 is unrolled and the slat 41 is aligned in the Y-axis direction as shown in Fig. 1, the recesses 611, 612 are arranged opposite each other in the Z-axis direction, and in this embodiment, the recess 611 is arranged on the outdoor side and the recess 612 is arranged on the indoor side. The recesses 611, 612 are arranged at a distance in the circumferential direction from the crimping portion 65. Therefore, the positions where the recesses 611, 612 are formed in the circumferential direction are different from the joining positions by the crimping portion 65.

The crimped portion 65 has a first piece 70 and a second piece 75. The first piece 70 has an inner piece 71 that is bent from the edge 62 of the pipe body 61 and protrudes to the inner periphery, and a first folded back piece 72 that is folded back to the outer periphery from the inner piece 71. The second piece 75 has an outer piece 76 that is continuous with the edge 63 of the pipe body 61, and a second folded back piece 77 that is folded back to the inner periphery from the outer piece 76.
In this crimped portion 65, the respective pieces overlap in the order of the inner piece 71, the second folded piece 77, the first folded piece 72, and the outer piece 76 from the inner periphery side to the outer periphery side of the winding pipe 6. The first folded piece 72 is disposed between the outer piece 76 and the second folded piece 77, and the second folded piece 77 is disposed between the inner piece 71 and the first folded piece 72. A continuous portion 78 where the inner piece 71 is continuous with the edge portion 62 (a portion folded from the edge portion 62 and protruding toward the inner periphery side) forms one end in the width direction of the crimped portion 65, and a continuous portion 79 (folded portion) of the inner piece 71 and the first folded piece 72 forms the other end in the width direction of the crimped portion 65. The crimped portion 65 is located on an imaginary line V2 that intersects with the imaginary line V1 at an angle θ of 90° or more and passes through the axis C, at a position where the slat 41C is located on the outer periphery when wound up.

[Modification]
In the above embodiment, the winding pipe is made of a steel metal plate, but may be made of a metal plate made of other metal materials such as aluminum, etc. Also, the slats 41 may be made of other materials instead of steel.
In the above embodiment, the crimped portion 65 is formed to protrude toward the inner periphery of the winding pipe 6, but it may be formed to protrude toward the outer periphery. Also, the joint is formed by the crimped portion 65, but the joint may be formed by welding, riveting, screwing, or the like of the above-mentioned metal plates.
In the above embodiment, the recess 612 formed in the winding pipe 6 and the crimped portion 65 are joined at different positions, but as long as they are joinable, they may be located in the recess 612. In addition, when the configuration of the recess 612 is not used for mounting accessories such as the auxiliary wheel 9, the configuration of the recess 612 may be omitted.
In the above embodiment, the connection positions between the slats 41 are different in the circumferential direction relative to the abutment positions at which the slats abut against the winding pipe 6, but as long as the slats 41 can be wound around the winding pipe 6, the connection positions may also be the abutment positions.
In the above embodiment, the dimension from the contact position of the slat 41C against the winding pipe 6 to the crimped portion 65 is larger than the width dimension L of the crimped portion 65, but if there is a low possibility that the crimped portion 65 will contact the contact portion 43 of the slat 41C, it may be less than the width dimension L.
In the above embodiment, the crimping portion 65 is disposed on a virtual line V2 that intersects with the virtual line V1 at an angle θ of 90° or more and passes through the axis C, but may be disposed on a virtual line that intersects with the virtual line V1 at an angle θ smaller than 90° and passes through the axis C. The crimping portion 65 is disposed at a position where the third slat 41C is disposed on the outer periphery side, but may be disposed at a position where the second slat 41B is disposed on the outer periphery side, and may be disposed at a position where the fourth or subsequent slats 41 are disposed on the outer periphery side when the influence of the error in the position of the slats 41 is small. The position closer to the top slat 41 has less error in the positions of the multiple slats 41, and the positional relationship between the crimping portion 65 and the slats 41 that cover it is less likely to have an error, while the crimping portion 65 is disposed on a virtual line V2 that intersects with the virtual line V1 at an angle θ of 90° or more and passes through the axis C, so that the winding pipe 6 can be easily formed regardless of the shape of the portion where the slats 41 are attached to the winding pipe 6. The position of the crimped portion 65 is set taking these points into consideration.

[Summary of the invention]
The shutter of the present invention comprises a shutter surface material and a winding pipe to which the shutter surface material is connected so that it can be rolled up, the winding pipe being formed into a cylindrical shape from a metal plate with its edges joined together, and the shutter surface material abuts against the winding pipe at multiple points in the circumferential direction in the rolled up state, and these abutment positions differ in the circumferential direction of the winding pipe relative to the joint positions of the edges.
According to the shutter of the present invention, the contact position of the shutter surface material against the winding pipe differs circumferentially from the joint position where the edges of the metal plates are joined, thereby eliminating the risk of the shutter surface material coming into contact with the joint and being damaged, and maintaining the design of the shutter.

In the shutter of the present invention, the winding pipe may be formed with a recess recessed toward its inner periphery, and the position at which the recess is formed in the circumferential direction may be different from the joining position.
According to such a configuration, as compared with a case where the joining position is in the recess, for example, joining tools and members can be used regardless of the shape of the recess, and the winding pipe can be easily formed.

In the shutter of the present invention, the shutter surface material may be formed by connecting a plurality of slats, and the connection positions of the plurality of slats may differ in the circumferential direction with respect to the abutment position.
With this configuration, the connecting positions of the multiple slats can be made not to abut against the winding pipe.

In the shutter of the present invention, the slat has connecting portions formed on both sides in the width direction and connected to adjacent slats, abutment portions that are continuous with each of the connecting portions and abut against the winding pipe, and intermediate portions that are continuous with each of the abutment portions, and the abutment portions are positioned on one side in a thickness direction that intersects the longitudinal and width directions of the slat with respect to the connecting portions and the intermediate portions, and in the rolled up state, the intermediate portions may be positioned at a position away from the outer periphery of the joint position.
With this configuration, when the abutment portion arranged on one side abuts against the winding pipe, the connecting portion and the middle portion are arranged away from the outer periphery of the winding pipe, so that the slats do not abut against the joint portion of the winding pipe. Furthermore, since the connecting portion does not abut against the winding pipe, the shutter surface material can be smoothly wound up.

In the shutter of the present invention, the shutter surface material is formed by connecting a number of slats, the winding pipe has a joint portion where the edges are joined by crimping, and the dimension from the abutment position of the slat that abuts against the winding pipe in the wound state and is positioned on the outer periphery of the joint portion to the joint portion may be larger than the dimension between both edges along the longitudinal direction of the joint portion.
With this configuration, even if the crimped joint attempts to come loose, the dimensional relationship described above prevents the slat from hitting the joint.

In the shutter of the present invention, the shutter surface material is formed by connecting a plurality of slats, and the winding pipe has a joint that joins the edges together by crimping, and the joint may be positioned at a position on a virtual line that intersects an angle of 90° or more with a virtual line connecting the mounting position where the slat is attached to the winding pipe and the axial center position of the winding pipe and passes through the axial center.
With this configuration, the joint is positioned away from the mounting position of the slat relative to the winding pipe, as described above, so that the winding pipe can be easily formed regardless of the shape of the part where the slat is attached to the winding pipe.

1...Shutter, 2...Window frame, 21...Upper frame, 22...Lower frame, 23...Vertical frame, 3...Shutter frame, 31...Vertical shutter frame, 4...Shutter surface material, 41 (41A to 41D)...Slat, 42...Connecting part, 43...Abutment part, 44...Middle part, 5...Shutter case, 51...Opening, 6...Winding pipe, 61...Pipe main body, 611, 612...Recess, 613...Positioning part, 614, 6 17...side piece, 615, 618...bottom piece, 616...locking piece, 62, 63...edge, 65...crimped portion (joint), 7...screw, 70...first piece, 71...inner piece, 72...first folded piece, 75...second piece, 76...outer piece, 77...second folded piece, 78, 79...continuous portion, 8...back plate, 9...auxiliary wheel (accessory), C...axis center, L...dimension, V1, V2...imaginary line, θ...angle.

Claims (6)

The shutter panel includes a shutter surface material and a winding pipe to which the shutter surface material is connected so as to be capable of being wound up;
The winding pipe is formed into a cylindrical shape from a metal plate and is configured by joining edges of the metal plate together,
The shutter surface material abuts against the winding pipe at multiple points in the circumferential direction when wound up, and the abutment positions vary in the circumferential direction of the winding pipe with respect to the joint positions of the edge portions. 2. The shutter according to claim 1,
The winding pipe is formed with a recess on the inner circumferential side,
The shutter, wherein a position in the circumferential direction where the recess is formed is different from the joining position. The shutter according to claim 1 or 2,
The shutter surface material is configured by connecting a plurality of slats,
The shutter, wherein connection positions of the plurality of slats vary in the circumferential direction with respect to the abutment position. The shutter according to claim 3,
Each of the slats has connecting portions formed on both sides in the width direction and connected to adjacent slats, abutting portions that are continuous with each of the connecting portions and abut against the winding pipe, and intermediate portions that are continuous with each of the abutting portions,
A shutter characterized in that the abutment portion is positioned on one side in a thickness direction intersecting the longitudinal and width directions of the slat with respect to the connecting portion and the intermediate portion, and in a rolled-up state, the intermediate portion is positioned at a position away from the outer periphery of the joint position. The shutter according to any one of claims 1 to 4,
The shutter surface material is configured by connecting a plurality of slats,
The winding pipe has a joint portion that joins the edge portions together by crimping,
A shutter characterized in that the dimension from the abutment position of a slat that abuts against the winding pipe in a wound state and is arranged on the outer periphery of the joint to the joint is larger than the dimension between both edges along the longitudinal direction of the joint. The shutter according to any one of claims 1 to 5,
The shutter surface material is configured by connecting a plurality of slats,
The winding pipe has a joint portion that joins the edge portions together by crimping,
A shutter characterized in that the joint is located at a position on an imaginary line that intersects with an imaginary line connecting the mounting position where the slat is attached to the winding pipe and the axial center position of the winding pipe at an angle of 90° or more and passes through the axial center.

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