Installation structure of shaft supporting bracket, and installation method thereof

Abstract

To provide an installation structure of a shaft supporting bracket with excellent workability, and an installation method thereof.SOLUTION: The installation structure includes a support body 30 that is fixed to a skeleton. The support body 30 includes: a lateral frame material 32 extending in a horizontal direction; and a pair of right and left vertical frame materials 33 connected to right and left ends of the lateral frame material 32 and extending in a vertical direction. The vertical frame material 33 has a cross-sectional shape of approximately rectangular. A front surface part 33a of the vertical frame material has a shaft supporting bracket 50 attached and fixed thereto. An outer surface part 33b of the vertical frame material 33 perpendicular to the front surface part 33a is formed with a work hole 33b1 for attaching the shaft supporting bracket 50.SELECTED DRAWING: Figure 8

Description

Technical Field

[0001] The present invention relates to an installation structure of a shaft support bracket and a construction method thereof.

Background Art

[0002] As a conventional opening / closing device, for example, as described in Patent Document 1, left and right brackets are arranged on a building body with a coupling tool such as a bolt, and both axial ends of a winding shaft are rotatably supported by these brackets. An opening / closing device is known.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] The opening / closing device described in Patent Document 1 includes a winding shaft for winding and unwinding a shutter curtain, and shaft portions provided at both axial ends of the winding shaft are rotatably supported by left and right brackets via bearing members. By the way, in recent years, for example, a robust support such as a steel frame is fixed to a building body made of wood or the like to reinforce the building body, and a bracket of an opening / closing device may be fixed to the support. However, when attaching and fixing a bracket to the support, the attachment work may take time and effort, and there has been room for improvement.

[0005] The present invention has been made in view of the above circumstances, and an object thereof is to provide an installation structure of a shaft support bracket and a construction method thereof that are excellent in workability.

Means for Solving the Problems

[0006] In view of such problems, one aspect of the present invention has the following configuration. In an installation structure of a shaft support bracket in an opening / closing device including an opening / closing body that opens and closes an opening of a housing, a winding shaft around which the opening / closing body is wound, and a pair of left and right shaft support brackets that rotatably support the winding shaft, a support body fixed to the housing is provided. The support body has a horizontal frame member extending in the horizontal direction and a pair of left and right vertical frame members extending in the vertical direction and connected to the left and right ends of the horizontal frame member. The vertical frame member has a substantially rectangular cross-sectional shape. The shaft support bracket is attached and fixed to the front surface portion of the vertical frame member, and a work hole for the attachment work of the shaft support bracket is formed in the outer side surface portion of the vertical frame member orthogonal to the front surface portion. An installation structure of a shaft support bracket is characterized by this.

Effects of the Invention

[0007] Since the present invention is configured as described above, the shaft support bracket can be installed easily and simply.

Brief Description of the Drawings

[0008]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Embodiments for Carrying Out the Invention

[0009] (Embodiment) Next, embodiments according to the present invention will be described in detail with reference to the drawings. In this specification, the "width direction of the opening / closing body" means a direction (left - right direction in FIG. 1) that is substantially orthogonal to the opening / closing direction of the opening / closing body and is not the thickness direction of the opening / closing body, and is the same direction as the "search direction". Further, the "prospective direction" means the thickness direction (left - right direction in FIG. 2) of the opening / closing body that is substantially orthogonal to the "search direction". The "inner side in the width direction of the opening / closing body" means the direction side that goes toward the inside of the opening / closing body along the width direction of the opening / closing body, and may also be referred to as the "inner side in the left - right direction". For example, with reference to the left - hand guide rail 40 in FIG. 1, the inner side in the width direction of the opening / closing body (inner side in the left - right direction) is the right - hand side. Also, the "outer side in the width direction of the opening / closing body" means the direction side that goes toward the outside of the opening / closing body along the width direction of the opening / closing body, and may also be referred to as the "outer side in the left - right direction". For example, with reference to the left - hand guide rail 40 in FIG. 1, the outer side in the width direction of the opening / closing body (outer side in the left - right direction) is the left - hand side.

[0010] First, the overall configuration of the opening / closing device according to the present invention will be described. FIG. 1 is a schematic front view showing an example of the opening / closing device according to the present invention. FIG. 2 is a schematic longitudinal sectional view taken along line (II) - (II) of FIG. 1. FIG. 3 is a schematic perspective view showing an example of an installation mode of a vibration damping structure of a shaft support bracket according to the present invention. The opening / closing device 1 includes an opening / closing body 10 that closes in a manner of partitioning a space, a storage unit 20 that feeds out the opening / closing body 10 in the closing direction or stores it in the opening direction, and a guide rail 40 that guides the opening / closing body 10 in the closing direction and the opening direction.

[0011] This opening and closing device 1 has a storage part 20 fixed to the wall surface Xa above the opening of a housing X, such as a wooden housing X, so as to open and close the opening of the housing X with an opening and closing body 10. The housing X is, for example, a large building mainly made of wood as shown in FIG. 2, and integrally includes a wooden base x1 and a fire-resistant member x2 covering the wooden base x1.

[0012] The wooden base x1 is a wooden building material constituting the basic framework of the housing X, and is, for example, a square columnar wood constituting a beam or the like, or a flat structural plywood constituting a wall surface. The wooden base x1 in the illustrated example is provided across the width direction above the opening opened and closed by the opening and closing body 10.

[0013] The fire-resistant member x2 is a plate-shaped building material having fire resistance and heat insulation properties (for example, a gypsum board, a calcium silicate board, etc.), and is stacked singly or plurally (two in the illustrated example) on the surface of the wooden base x1. This fire-resistant member x2 blocks the transmission of external heat and flames to the wooden base x1.

[0014] The opening and closing body 10 is formed by connecting a plurality of slats formed by bending a horizontally long substantially rectangular metal plate so as to rotate between the upper and lower sides. This opening and closing body 10 may be referred to as a slat shutter curtain. As another example of this opening and closing body 10, a mode made of a flexible sheet such as fire resistance, a mode made of a plurality of panels, a mode in which a plurality of pipes are arranged at intervals in the vertical direction, a mode in which slats, flexible sheets, panels, pipes, etc. are appropriately combined, etc. are possible.

[0015] The storage part 20 includes a winding shaft 21 for winding and unwinding the opening and closing body 10, shaft support brackets 50 for supporting the winding shaft 21 at both ends thereof, a winding shaft case 23 covering the periphery of the winding shaft 21 and the opening and closing body 10 wound around the winding shaft 21, an opening and closing machine 24 which is a drive source for driving the winding shaft 21 to rotate, a support base frame 25 for supporting and integrally holding the shaft support brackets 50, etc.

[0016] The take-up shaft 21 is configured as a long cylindrical shape extending in the width direction of the opening / closing body and is rotatably supported. The take-up shaft 21 may be configured in a manner such that a winding body is rotatably supported via a bearing on the outer periphery of a non-rotatable fixed shaft, or a shaft portion integrated with the winding body is rotatably supported via a bearing with respect to a shaft support bracket 50, etc.

[0017] The take-up shaft case 23 is formed in a long shape with a longitudinal cross-section such as a substantially U-shape or an arc shape continuous in the opening / closing width direction. This take-up shaft case 23 is fixed to the support base frame 25 so as to cover the periphery of the take-up shaft 21 and the opening / closing body 10 wound around the take-up shaft 21 from the front side (left side according to FIG. 2).

[0018] The opening / closing mechanism 24 is composed of an electric motor, gears, etc. This opening / closing mechanism 24 is supported by one of the shaft support brackets 50 (right side according to FIG. 1), and its rotational force is transmitted to the take-up shaft 21 by a chain, sprocket, etc. (not shown).

[0019] The support base frame 25 is formed by connecting a plurality of long rigid members (for example, various steel materials such as angle steel and channel steel). The support base frame 25 in the illustrated example is integrally configured to have a horizontally long connecting member 25a that connects the left and right shaft support brackets 50 at its lower end side, and a support portion 25b that supports a substantially central portion in the lateral width direction of the connecting member 25a and is fixed to the rear support body 30.

[0020] Below the support base frame 25, a baffle portion 26 is provided so as to surround the opening / closing path of the opening / closing body 10 at the height position of the ceiling portion 2. This baffle portion 26 is fixed to a fixed portion in the vicinity of the ceiling portion 2 (for example, the connecting member 25a, the support body 30, and other immovable members on the ceiling side).

[0021] The guide rails 40 are long members continuous in the vertical direction at both end sides in the width direction of the opening / closing body 10. These guide rails 40 are fixed to the wall surfaces on both sides of the opening in the housing X so as to guide the width direction ends of the opening / closing body 10 in the opening / closing direction. This guide rail 40 is formed of a hard metal material (e.g., steel, stainless steel, aluminum alloy, etc.) and is fixed to the housing X by a fixture (e.g., screw, nail, bolt, etc.) not shown in the figure.

[0022] Also, the lower end of the guide rail 40 is fixed to a lower stationary part (e.g., floor surface, lower frame, door sill, etc.) via a fixture such as a mounting bracket, and the upper end of the guide rail 40 is fixed to an upper stationary part (e.g., ridge part 26, ceiling part 2, upper steel material, beam material, etc.) via a fixture such as a mounting bracket.

[0023] As shown in FIG. 3, the support 30 is configured, for example, in a substantially rectangular frame shape in a front view extending over substantially the entire length in the lateral width direction of the storage part 20 by connecting a plurality of (two in the illustrated example) long hard members (angle steel pipes according to the illustrated example). As shown in FIG. 2, this support 30 is fixedly and immovably attached to the wall surface Xa of the housing X by a fixture 38 (e.g., screw, nail, bolt, anchor member, nail, etc.).

[0024] <Support> Hereinafter, an example of the specific structure of the support 30 will be described. FIG. 4(a) is a schematic perspective view showing an example of the support according to the present invention, and FIG. 4(b) is a schematic side view of the vertical frame member constituting the support.

[0025] As shown in FIG. 4(a), the support 30 integrally includes a plurality of (two in the illustrated example) horizontal frame members 32, 32 extending in the horizontal direction at intervals in the vertical direction, vertical frame members 33, 33 extending in the vertical direction connecting both ends of these horizontal frame members 32, 32 in the lateral width direction, a connecting member 34 connecting each of the horizontal frame members 32, 32 at the central part, and a protruding part 31 protruding upward at the central side of the upper horizontal frame member 32.

[0026] Each member (e.g., horizontal frame member 32, vertical frame member 33, protruding part 31, etc. according to the illustrated example) constituting the support 30 is formed of a hard metal material (e.g., iron, aluminum alloy, stainless steel, etc.). These members are integrally connected by welding or connection fittings, etc. Note that the horizontal frame member 32 may be made of a hard wooden material.

[0027] [Vertical frame member] The left and right vertical frame members 33 are each composed of, for example, a hollow square pipe material with a substantially rectangular cross-sectional shape, and form a portion where the pivot brackets 50 are fixed. The pivot brackets 50 are attached and fixed to the front surface portion 33a of the vertical frame member 33. Further, on the outer surface portion 33b of the vertical frame member 33 orthogonal to the front surface portion 33a, a plurality of working holes 33b1, 33b2, 33b3 (three in the illustrated example) for attachment work are formed for use during the attachment work (fastening work) of the pivot brackets 50.

[0028] The plurality of working holes 33b1, 33b2, 33b3 are arranged at a predetermined interval in the vertical direction so as to correspond to the respective insertion holes 53a, 53b, 53c formed in the attachment portion 53 (see FIG. 5) of the pivot bracket 50 described later. When attaching and fixing the pivot bracket 50, through each of the working holes 33b1, 33b2, 33b3, for example, the nut 54b of the fixing member 54 composed of a bolt and a nut (see FIG. 8(b)) or a tool 55 (for example, a wrench or a spanner) that supports this nut 54b is inserted (arranged) into the vertical frame member 33 and the fixing work (fastening work) is performed.

[0029] FIG. 4 shows an example in which an upper working hole 33b1, a central working hole 33b2, and a lower working hole 33b3 are arranged at a predetermined interval in the vertical direction on the outer surface portion 33b of the vertical frame member 33, and are respectively arranged so as to correspond to the upper insertion hole 53a, the central insertion hole 53b, and the lower insertion hole 53c formed in the attachment portion 53 (see FIG. 5) of the pivot bracket 50, and are formed as through holes such as circular, elliptical, rectangular, etc. (circular in the illustrated example).

[0030] Also, as shown in FIG. 4(b), the respective working holes 33b1, 33b2, 33b3 are arranged such that the adjacent working holes in the vertical direction are displaced in the left-right direction. The central working hole 33b2 is formed at a position closer to the front edge (closer to the front surface portion 33a) than the central position m in the expected direction (left-right direction in FIG. 4(b)) of the outer surface portion 33b, and the upper working hole 33b1 and the lower working hole 33b3 are formed so as to be displaced toward the rear surface portion 33c side in the expected direction with respect to the central working hole 33b2.

[0031] Specifically, let the distance between the upper working hole 33b1 and the front edge of the outer side surface 33b be t1, the distance between the central working hole 33b2 and the front edge of the outer side surface 33b be t2, and the distance between the lower working hole 33b3 and the front edge of the outer side surface 33b be t3. Also, let the distance between the central position m in the prospective direction of the outer side surface 33b and the front edge be m1, and the distance between the center c of the central working hole 33b2 and the front edge of the vertical frame member 33 be c1. Then, it is set such that m1 > c1 and t1, t3 > t2.

[0032] Therefore, by arranging the working holes 33b1, 33b2, 33b3 to be offset in this way, a sufficient distance between the working holes 33b1, 33b2, 33b3 can be ensured. Thus, the sizes of the working holes 33b1, 33b2, 33b3 can be formed to be easily workable sizes, and a decrease in the strength (rigidity) of the outer side surface 33b due to the formation of the working holes 33b1, 33b2, 33b3 can be suppressed.

[0033] Also, based on arranging the central working hole 33b2 at a position closer to the front edge than the central position in the front - rear direction of the outer side surface 33b of the vertical frame member 33 (m1 > c1), by setting the distances t1, t3 between the upper and lower working holes 33b1, 33b3 and the front edge of the outer side surface 33b to be larger than the distance t2 between the central working hole 33b2 and the front edge of the outer side surface 33b (t1, t3 > t2), the working holes 33b1, 33b2, 33b3 can be arranged to be as close as possible to the front surface portion 33a side of the vertical frame member 33. Therefore, the mounting work of the pivot bracket 50 (setting of the nut 54b and the tool 55) can be easily performed, and the workability is improved.

[0034] Also, when a strong shake occurs in the building (frame) due to an earthquake or the like, the vertical external force (bending moment) acting on the pivot bracket 50 acts on the vertical frame member 33 via the fixing members 54 (see Fig. 9(a)) arranged in the insertion holes 53a, 53b, 53c of the pivot bracket 50. In this case, on the front surface portion 33a of the vertical frame member 33, a greater external force (such as a tensile force) than that by other fixing members 54 acts due to the fixing member 54 inserted and fixed in the upper insertion through-hole 53a of the pivot bracket 50. However, since the distance t1 between the upper work hole 33b1 and the front edge of the outer side surface portion 33b is set larger than the distance t2 between the central work hole 33b2 and the front edge of the outer side surface portion 33b (t1 > t2), a decrease in the strength (rigidity) of the outer side surface portion 33b can be suppressed. Therefore, even if a large external force (such as a tensile force) acts on the pivot bracket 50, the vertical frame member 33 can stably support the pivot bracket 50 without deforming.

[0035] Note that the shape (size), number of arrangements, arrangement positions, etc. of each work hole are not limited to the above-described embodiment, and can be arbitrarily set as long as they have the function of a work hole.

[0036] [Horizontal frame member] The upper and lower horizontal frame members 32, 32 are composed of, for example, a hollow square pipe material having a substantially rectangular cross-sectional shape, and are fixedly secured to the wall surface Xa of the housing X by fasteners 38 (such as screws, bolts, nuts, anchor members, nails, etc.) (see FIG. 2). Further, a base member 61 of an anti-vibration structure 60 (see FIGS. 3 and 7) described later is secured to the upper horizontal frame member 32. Note that the horizontal frame member 32 may be composed of a hard wooden material.

[0037] [Protruding portion, connecting member] The protruding portion 31 and the connecting member 34 are composed of, for example, a hollow square pipe material having a substantially rectangular cross-sectional shape. The protruding portion 31 is provided to protrude upward on the central side of the upper horizontal frame member 32, and a base portion of the support portion 25b of the support base frame 25 is secured to the protruding portion 31 by a fastener (such as a screw, bolt, etc.) not shown. Further, the connecting member 34 is a connecting member that connects the upper and lower horizontal frame members 32, 32 at the central portion and functions as a reinforcing portion of the support 30.

[0038] [Pivot bracket] Next, an example of the specific structure of the shaft support bracket 50 will be described. FIG. 5 is a schematic perspective view showing an example of the shaft support bracket according to the present invention. Further, FIG. 6(a) is a schematic side view of the same shaft support bracket, FIG. 6(b) is a schematic plan view of the same shaft support bracket, and FIG. 6(c) is a schematic front view of the same shaft support bracket.

[0039] The shaft support bracket 50 includes, for example, a flat plate-shaped support body 51, upper and lower flange portions 52, 52 bent outward in the width direction of the opening / closing body from the upper and lower edge portions of the support body 51, and a mounting portion 53 bent inward in the width direction of the opening / closing body from the rear edge portion of the support body 51. Each shaft support bracket 50 is integrally formed, for example, by bending a flat metal plate material or welding each part.

[0040] Note that FIGS. 5 and 6 show the shaft support bracket 50 disposed on one side (left side) in the left-right direction in the opening / closing device 1, but the shaft support bracket 50 disposed on the other side (right side) in the left-right direction is also configured in the same manner (symmetrical structure).

[0041] [Support body] A notch portion 51a for inserting the shaft portion 21a (see FIG. 2) of the winding shaft 21 is formed in the support body 51 of the shaft support bracket 50. This notch portion 51a is formed so as to form a recess opening forward of the shaft support bracket 50, and the shaft portion 21a of the winding shaft 21 is rotatably supported via a bearing member (not shown) fixed inside the shaft support bracket 50 with a fixing tool such as a screw or a bolt in this notch portion 51a.

[0042] [Mounting portion] The attachment portion 53 of the shaft support bracket 50 forms a base portion that is attached and fixed to the vertical frame member 33 of the support body 30, and is attached and fixed using a fixing member 54 (see FIG. 8) composed of, for example, bolts and nuts. The attachment portion 53 has a substantially rectangular shape (substantially rectangular shape) in a front view, and a plurality of insertion holes 53a, 53b, 53c (three in the illustrated example) penetrate therethrough at a predetermined interval in the vertical direction with a size substantially equal to the outer diameter of the shaft portion (threaded portion) 54a2 of the fixing member 54.

[0043] Each of the insertion holes 53a, 53b, 53c is formed as an upper insertion hole 53a, a central insertion hole 53b, and a lower insertion hole 53c, and is arranged at a predetermined interval in the vertical direction so as to correspond to the respective work holes 33b1, 33b2, 33b3 (see FIG. 4) formed in the vertical frame member 33 of the support body 30.

[0044] As shown in FIGS. 5 and 6(c), the upper insertion hole 53a is formed at an upper position of the attachment portion 53 and near the edge on the inner side in the left-right direction of the attachment portion 53 (the right side in FIG. 6(c)). The central insertion hole 53b is formed at a substantially central position in the vertical direction of the attachment portion 53 and near the connection edge with the support main body 51 on the outer side in the left-right direction (the left side in FIG. 6(c)). The lower insertion hole 53c is formed at a lower position of the attachment portion 53 and near the edge on the inner side in the left-right direction of the attachment portion 53.

[0045] In this way, since the insertion holes 53a, 53b, 53c are arranged such that the adjacent insertion holes in the vertical direction are displaced in the left-right direction, a sufficient distance between the insertion holes 53a, 53b, 53c can be ensured, and the workability when fixing the fixing member 54 is improved. Also, since the fixing positions of the fixing members 54 inserted through the insertion holes 53a, 53b, 53c are displaced and dispersed in the left-right direction (not uniform in the vertical direction), even when a strong shaking occurs in the building (frame) due to an earthquake or the like, the attached state of each bracket 4 can be effectively maintained.

[0046] Note that the number and arrangement positions of the insertion holes are not limited to those in the above embodiment and can be arbitrarily set. For example, the insertion holes 53a, 53b, and 53c may be arranged at substantially the central position in the left - right direction and spaced apart at uniform positions arranged in the up - down direction.

[0047] [Flange part] The upper and lower flange parts 52, 52 are configured to extend horizontally outward in the width direction of the opening - closing body from the upper edge part and the lower edge part of the support body 51. The bending rigidity of the pivot bracket 50 is increased by these upper and lower flange parts 52, 52. Also, as shown in FIGS. 5 and 6(b), a through - hole 52a for fixing (pivoting) one end of a vibration - damping member 65 of a vibration - damping structure 60 (see FIG. 7) described later is formed in the front - end side part of the upper flange part 52.

[0048] [Vibration - damping structure] Next, an example of the specific structure of the vibration - damping structure 60 will be described. FIG. 7 is a schematic perspective view showing an example (exploded state) of the vibration - damping structure according to the present invention.

[0049] The vibration - damping structure 60 is for preventing the pivot brackets 50 of the opening - closing device 1 from relatively displacing (relatively moving) in the axial direction of the winding shaft 21 (the left - right direction in FIG. 1) with respect to the winding shaft 21, so as to prevent the shaft part 21a (see FIG. 2) of the winding shaft 21 from falling off (extracting) from the pivot brackets 50 by damping the pivot brackets 50. That is, the pair of left - right pivot brackets 50 is restricted by this vibration - damping structure 60 from expanding and moving in a spreading - out manner beyond a predetermined range.

[0050] The vibration - damping structure 60 includes a base member 61 attached and fixed to the horizontal frame member 32 of the support body 30, and a vibration - damping member 65 disposed across between the base member 61 and the pivot bracket 50. This vibration - damping structure 60 is disposed, for example, between the left - right pivot brackets 50 and the horizontal frame member 32 of the support body 30 as shown in FIG. 3.

[0051] [Base member] As shown in FIG. 7, the base member 61 is formed in a substantially L-shaped cross section, and has a rising portion 62 extending in the vertical direction that is attached and fixed to the horizontal frame member 32 of the support 30, and a horizontal portion 63 extending horizontally forward from the lower end of the rising portion 62. This base member 61 can be configured by a metal material having strength and rigidity such as an L-shaped angle material, for example.

[0052] In the rising portion 62 of the base member 61, an adjustment hole 62a formed of an oval long hole extending in the left-right direction (horizontal direction) is formed at a substantially central portion of the rising portion 62. Further, positioning holes 62b formed of circular round holes are formed on the left and right so as to sandwich the adjustment hole 62a.

[0053] The adjustment hole 62a functions as an adjustment hole for adjusting the attachment position of the base member 61 when the base member 61 is fixed to the horizontal frame member 32 of the support 30. The adjustment hole 62a is formed such that the left-right width W is larger than the maximum shaft diameter d of the shaft portion (screw portion) 64b of a fastening member 64 such as a drill screw or a screw, and the up-down width H is substantially the same as or slightly larger than the maximum shaft diameter d of the coaxial portion 64b.

[0054] Therefore, when attaching the base member 61 to the horizontal frame member 32, by inserting the shaft portion 64b of the fastening member 64 into the adjustment hole 62a of the rising portion 62 and loosely fastening (screwing) it to the horizontal frame member 32 for temporary fixing, the base member 61 can be moved in the left-right direction with respect to the horizontal frame member 32 to adjust its attachment position. Note that the left-right width W of the adjustment hole 62a can be set to, for example, 1.5 to 3.0d of the maximum shaft diameter d of the shaft portion 64b. Note that the left-right width W of the adjustment hole 62a is not limited to this example.

[0055] The positioning hole 62b functions as a positioning hole for fixedly positioning the mounting position when the base member 61 is fixed to the horizontal frame member 32. The hole diameter D thereof is formed to be substantially the same as or slightly larger than the maximum shaft diameter d of the shaft portion 64b of the fastening member 64. Therefore, by inserting and fastening the fastening member 64 through the positioning hole 62b of the rising portion 62, the base member 61 can be fixedly positioned with respect to the horizontal frame member 32.

[0056] Note that, when mounting the base member 61, through holes (not shown) for inserting / screwing the fastening member 64 may be formed in the horizontal frame member 32 so as to communicate with each of the adjustment hole 62a and each positioning hole 62b using a tool such as a drill.

[0057] In the above embodiment, the adjustment hole 62a is formed at substantially the center of the rising portion 62, and the positioning holes 62b are formed on the left and right so as to sandwich the adjustment hole 62a, but the present invention is not limited to this example. The number and arrangement positions of the adjustment hole 62a and the positioning holes 62b can be arbitrarily set.

[0058] Also, on the horizontal portion 63 of the base member 61, a rod-shaped shaft support pin 63a for pivotally supporting one end side of the anti-vibration member 65 is provided at substantially the center position thereof. This shaft support pin 63a is provided, for example, by joining a shaft-shaped member made of metal by a fixing means such as welding. The first insertion hole 65a formed at one end side of the anti-vibration member 65 is pivotally supported by the shaft support pin 63a of the base member 61 so as to be rotatable.

[0059] Note that, instead of the shaft support pin 63a, a through hole may be provided in the horizontal portion 63, and a fixing member such as a screw or a bolt may be inserted through the through hole and the first insertion hole 65a formed at one end side of the anti-vibration member 65 to pivotally support (fix) them.

[0060] [Anti-vibration member] The anti-vibration member 65 is composed of a long member extending between the upper front side of the pivot bracket 50 and the base member 61 attached to the horizontal frame member 32, and can be composed of, for example, a long flat metal plate or a long L-shaped angle member. A first insertion hole 65a pivotally supported by a pivot pin 63a provided on the horizontal portion 63 of the base member 61 is formed at one end side of the anti-vibration member 65, and a second insertion hole 65b forming a mounting hole communicating with a through hole 52a formed at the front end side of the upper flange portion 52 of the pivot bracket 50 is formed at the other end side of the anti-vibration member 65.

[0061] By arranging the anti-vibration member 65 between the upper front side of the pivot bracket 50 and the horizontal frame member 32, even when a strong shaking occurs in the building (frame) due to an earthquake or the like, it is possible to suppress the relative displacement (relative movement) of the left and right pivot brackets 50 in the axial direction of the winding shaft 21 with respect to the winding shaft 21.

[0062] Next, each installation method (installation process) of the pivot bracket and the anti-vibration structure will be described with reference to the drawings.

[0063] <Installation method (installation process) of the pivot bracket> FIG. 8 is an explanatory view showing the installation process of the pivot bracket according to the present invention.

[0064] [Step A1 (Temporary placement of the pivot bracket)] First, the pivot bracket 50 is temporarily placed on the vertical frame member 33 of the support 30 fixed (installed) to the frame X. As shown in FIG. 8(a), the mounting portion 53 of the pivot bracket 50 is brought into contact with the front surface portion 33a of the vertical frame member 33 and arranged at a predetermined position. In this case, since upper working holes 33b1, central working holes 33b2, and lower working holes 33b3 are formed in advance on the outer surface portion 33b of the vertical frame member 33, the arrangement position can be set so that the center positions of these working holes 33b1, 33b2, 33b3 and the center positions of the upper insertion hole 53a, the central insertion hole 53b, and the lower insertion hole 53c formed in the mounting portion 53 are horizontally aligned at positions of substantially the same height.

[0065] Next, through holes (not shown) communicating with the insertion holes 53a, 53b, 53c of the attachment portion 53 are formed in the vertical frame member 33 of the support 30 using a tool such as a drill. The shaft portion 54a2 of the fixing member 54 is inserted through these through holes and the insertion holes 53a, 53b, 53c of the attachment portion 53, and the pivot bracket 50 is temporarily arranged on the vertical frame member 33.

[0066] [Step A2 (Fixing the Pivot Bracket)] Next, as shown in Fig. 8(b), the nut 54b of the fixing member 54 and a tool 55 (e.g., a wrench or a spanner) for supporting this nut 54b are sequentially inserted and arranged in the working holes 33b1, 33b2, 33b3 formed in the outer surface portion 33b of the vertical frame member 33. At the same time, the head portion 54a1 of the bolt 54a of the fixing member 54 exposed on the surface of the attachment portion 53 is rotated and fastened using a tool (not shown). Since the nut 54b is temporarily screwed onto the shaft portion 54a2 of the bolt 54a in a state of being supported by the tool 55 (a state of being prevented from rotating), it can be easily fastened by rotating the head portion 54a1 of the bolt 54a in this state. Note that the head portion 54a1 of the bolt 54a exposed on the surface of the attachment portion 53 may be supported by a tool (not shown), and the nut 54b may be rotated and fastened by the tool 55 inserted and arranged in the working holes 33b1, 33b2, 33b3.

[0067] [Installation Method of the Anti-Vibration Structure (Installation Step)] Next, the anti-vibration structure 60 is installed. Figs. 9 and 10 are explanatory diagrams showing the installation steps of the anti-vibration structure according to the present invention.

[0068] [Step B1 (Temporary Arrangement of the Anti-Vibration Structure)] After the pivot bracket 50 is attached and fixed to the vertical frame member 33 of the support 30, the anti-vibration structure 60 is installed between the pivot bracket 50 and the horizontal frame member 32 of the support 30. In this case, first, as shown in Fig. 9(a), the anti-vibration structure 60 is moved toward the support 30 side, and the rising portion 62 of the base member 61 is brought into contact with the front surface portion 32a of the horizontal frame member 32 of the support 30 to temporarily arrange the anti-vibration structure 60.

[0069] Specifically, for example, with one end of the anti-vibration member 65 pivotally supported by the pivot pin 63a of the base member 61, the anti-vibration structure 60 is moved toward the support 30, and the base member 61 is brought into contact with the front surface portion 32a of the horizontal frame member 32 in a state where the second insertion hole 65b formed at the other end side of the anti-vibration member 65 communicates with the through hole 52a formed in the upper flange portion 52 of the pivot bracket 50.

[0070] [Step B2 (Temporary fixing of the base member)] Next, as shown in FIG. 9(b), the base member 61 is temporarily fixed (temporarily secured) to the horizontal frame member 32 of the support 30. Specifically, for example, a shaft portion (threaded portion) of a connecting tool 66 made of a screw, a bolt, etc. is inserted / fastened into the second insertion hole 65b of the anti-vibration member 65 and the through hole 52a of the pivot bracket 50 to connect the pivot bracket 50 and the anti-vibration member 65, and the base member 61 is temporarily fixed (temporarily secured) to the horizontal frame member 32 of the support 30. In this case, for example, a fixing member 64 made of a drill screw or the like may be inserted through and loosely screwed at a position approximately in the center of the adjustment hole 62a formed in the rising portion 62 of the base member 61. Thereby, the base member 61 is temporarily fixed (temporarily secured) in a state where its position can be adjusted in the left-right direction with respect to the horizontal frame member 32. Note that, when performing this temporary fixing (temporary securing), a through hole (not shown) for inserting / screwing the shaft portion 64a of the fixing member 64 may be formed in the horizontal frame member 32 using a tool such as a drill.

[0071] [Step B3 (Position adjustment of the pivot bracket and the base member)] Next, as shown in FIG. 10(a), the position is adjusted to appropriately correct the open state in the left-right direction of the pivot bracket 50, the tilted state of the pivot bracket 50, etc. In this case, the base member 61 is disposed so as to be movable in the left-right direction in a temporarily fixed (temporarily secured) state with respect to the horizontal frame member 32, and can move in the left-right direction as the position of the pivot bracket 50 is adjusted. Therefore, the position of the open state or the like of the pivot bracket 50 can be easily adjusted. In other words, by adjusting the position of the base member 61 in the left-right direction, the open state of the pivot bracket 50 in the left-right direction can be corrected.

[0072] [Process B4 (Final Fixing of the Base Member)] After the position adjustment in Process B3, the base member 61 is finally fixed immovably to the horizontal frame member 32. In this case, as shown in Fig. 10(b), for example, a fastening member 64 inserted through the adjustment hole 62a is screwed tightly without looseness, and the fastening member 64 is fastened to the positioning hole 62b formed adjacent to the adjustment hole 62a, thereby finally fixing (positioning and fixing) the base member 61 immovably and firmly to the horizontal frame member 32. Note that, when performing this final fixing, a through hole (not shown) for inserting / screwing the fastening member 64 may be formed in the horizontal frame member 32 using a tool such as a drill.

[0073] According to the above, since the work holes 33b1, 33b2, 33b3 into which the nut 54b of the fixing member 54 and the tool 55 can be inserted are formed in the vertical frame member 33 of the support 30, the pivot bracket 50 can be easily attached and fixed to the vertical frame member 33. Also, since the fixed state and the tightened state of the fixing member 54 can be visually recognized (visually inspected) from each of the work holes 33b1, 33b2, 33b3, maintenance work and the like can be easily performed over a long period of time.

[0074] In addition, since the adjustment hole 62a is formed in the base member 61 of the anti-vibration structure 60 and can be temporarily fixed (temporarily fixed) in a state where the position can be adjusted in the left-right direction with respect to the horizontal frame member 32 of the support 30, the position adjustment for appropriately correcting (correcting) the left-right opening state and the falling state of the pivot bracket 50 can be easily performed. Furthermore, since the positioning hole 62b is formed adjacent to the adjustment hole 62a in the base member 61 of the anti-vibration structure 60, the base member 61 can be finally fixed (positioning and fixing) immovably and firmly to the horizontal frame member 32 by fastening the fastening member 64 to the positioning hole 62b.

[0075] [Other Modification Examples] In the above embodiment, the support 30 is configured in a substantially rectangular frame shape in front view by two horizontal frame members 32, 32 spaced apart in the vertical direction and vertical frame members 33, 33 connecting these horizontal frame members 32, 32 at both ends in the lateral width direction. However, it is not limited to this example. For example, it may have a single horizontal frame member extending in the horizontal direction and a pair of left and right vertical frame members extending in the vertical direction connected to the left and right ends of this horizontal frame member.

[0076] Also, in the above embodiment, three work holes 33b1, 33b2, 33b3 for attaching the pivot bracket 50 are independently formed in the outer side surface 33b of the vertical frame member 33 in the support 30. However, it is not limited to this example. For example, it may be configured such that the pivot bracket 50 can be attached (fastened) by forming a single (one) long hole extending vertically for the work hole. In this case, an opening may be made within a range where the rigidity of the vertical frame member 33 can be maintained.

[0077] Further, the present invention is not limited to the above-described specific configurations and can be appropriately changed without changing the gist of the present invention.

[0078] <Summary> As described above, the following inventions are disclosed in the above embodiment. (1) In an installation structure of a pivot bracket in an opening / closing device including an opening / closing body that opens and closes an opening of a housing, a winding shaft around which the opening / closing body is wound, and a pair of left and right pivot brackets that rotatably support the winding shaft, a support fixed to the housing is provided. The support has a horizontal frame member extending in the horizontal direction and a pair of left and right vertical frame members extending in the vertical direction connected to the left and right ends of the horizontal frame member. The vertical frame member has a substantially rectangular cross-sectional shape. The pivot bracket is attached and fixed to the front surface portion of the vertical frame member, and a work hole for attaching the pivot bracket is formed in the outer side surface of the vertical frame member orthogonal to the front surface portion. The installation structure of the pivot bracket is characterized by this. (2) The shaft support bracket has an attachment portion that is attached and fixed to the front surface portion of the vertical frame member, and a plurality of insertion holes are formed in the attachment portion at a predetermined interval in the vertical direction. The working holes are arranged in a plurality at a predetermined interval in the vertical direction corresponding to each of the insertion holes so as to enable fastening work of a fixing member in each of the plurality of insertion holes. The installation structure of the shaft support bracket according to (1) above is characterized by this. (3) The installation structure of the shaft support bracket according to (2) above is characterized in that the plurality of working holes are arranged such that adjacent working holes in the vertical direction are displaced in the prospective direction. (4) The plurality of insertion holes include an upper insertion hole formed above the attachment portion, a central insertion hole formed at the center of the attachment portion, and a lower insertion hole formed below the attachment portion. The plurality of working holes include an upper working hole, a central working hole, and a lower working hole corresponding to the upper insertion hole, the central insertion hole, and the lower insertion hole, respectively. The central working hole is formed at a position closer to the front surface portion than the central position in the prospective direction on the outer surface portion. The upper working hole and the lower working hole are formed so as to be displaced toward the rear surface portion side in the prospective direction with respect to the central working hole. The installation structure of the shaft support bracket according to (3) above is characterized by this. (5) A construction method in the installation structure of the shaft support bracket according to claim 1, including a step of temporarily arranging the shaft support bracket on the front surface portion of the vertical frame member, wherein a shaft portion of a bolt forming a fixing member is inserted through an insertion hole formed in the shaft support bracket and a through hole formed in the front surface portion to temporarily arrange the shaft support bracket on the vertical frame member, and a nut forming the fixing member and a tool for supporting the nut are inserted into the working hole formed in the outer surface portion of the vertical frame member, and the shaft support bracket is fixed to the vertical frame member by tightening in a state where the bolt and the nut are assembled. The construction method in the installation structure of the shaft support bracket is characterized by this.

Explanation of Signs

[0079] 1: Opening and closing device 10: Opening and closing body 21: Take-up shaft 30: Support body 32: Horizontal frame member 33: Vertical frame member 33a: Front part 33b: Outer side part 33b1: Upper working hole 33b2: Central working hole 33b3: Lower working hole 50: Shaft support bracket 51: Support body 52: Flange part 52a: Through hole 53: Mounting part (base part) 53a: Upper insertion hole 53b: Central insertion hole 53c: Lower insertion hole 54: Fixing member 54a: Bolt 54b: Nut 60: Anti-vibration structure 61: Base member 62: Upright part 62a: Adjustment hole 62b: Positioning hole 63: Horizontal part 63a: Shaft support pin 65: Anti-vibration member 65a: First insertion hole 65b: Second insertion hole X: Body

Claims

1. In an installation structure of a shaft support bracket in an opening / closing device including an opening / closing body that opens and closes an opening of a body, a winding shaft around which the opening / closing body is wound, and a pair of left and right shaft support brackets that rotatably support the winding shaft, a support body fixed to the body is provided, the support body has a horizontal frame member extending in the horizontal direction and a pair of left and right vertical frame members extending in the vertical direction and connected to the left and right ends of the horizontal frame member, the vertical frame member has a substantially rectangular cross-sectional shape, the shaft support bracket is attached and fixed to the front surface portion of the vertical frame member, a work hole for the attachment work of the shaft support bracket is formed in the outer side surface portion of the vertical frame member orthogonal to the front surface portion. An installation structure of a shaft support bracket, characterized by the above.

2. The shaft support bracket has an attachment portion attached and fixed to the front surface portion of the vertical frame member, and a plurality of insertion holes are formed in the attachment portion at a predetermined interval in the vertical direction. The work holes are arranged at a predetermined interval in the vertical direction corresponding to the respective insertion holes so as to enable the fastening work of the fixing member in the plurality of insertion holes. The installation structure of the shaft support bracket according to claim 1, characterized by the above.

3. The plurality of work holes are arranged such that adjacent work holes in the vertical direction are shifted in the prospective direction. The installation structure of the shaft support bracket according to claim 2, characterized by the above.

4. The plurality of insertion holes include an upper insertion hole formed above the attachment portion, a central insertion hole formed at the center of the attachment portion, and a lower insertion hole formed below the attachment portion. The plurality of work holes include an upper work hole, a central work hole, and a lower work hole corresponding to the upper insertion hole, the central insertion hole, and the lower insertion hole, respectively. The central work hole is formed at a position closer to the front surface portion than the central position in the prospective direction on the outer side surface portion. The upper work hole and the lower work hole are formed so as to be shifted to the rear surface portion side in the prospective direction with respect to the central work hole. The installation structure of the shaft support bracket according to claim 3, characterized by the above.

5. A construction method for the installation structure of the shaft support bracket according to claim 1, A step of temporarily arranging the shaft support bracket on the front surface portion of the vertical frame member, the step of inserting a shaft portion of a bolt forming a fixing member through an insertion hole formed in the shaft support bracket and a through hole formed in the front surface portion to temporarily arrange the shaft support bracket on the vertical frame member; A step of inserting a nut forming the fixing member and a tool for supporting the nut into the work hole formed in the outer surface portion of the vertical frame member, tightening in a state where the bolt and the nut are assembled, and fixing the shaft support bracket to the vertical frame member; A construction method in an installation structure of a shaft support bracket, characterized by including the above steps.

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