Anti-vibration structure of shaft supporting bracket, and installation method thereof

Abstract

To provide an anti-vibration structure of a shaft supporting bracket with excellent workability, and an installation method thereof.SOLUTION: The anti-vibration structure includes: a support body 30 fixed to a skeleton; and an anti-vibration structure 60 for preventing vibration of a shaft supporting bracket 50. The support body 30 has: 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, respectively, and extending in a vertical direction. The anti-vibration structure 60 includes: a base member 61 attached and fixed to the lateral frame material 32 of the support body 30; and a long anti-vibration member 65 pivotally supported by the base member 61. A base part of the shaft supporting bracket 50 is attached and fixed to the vertical frame materials 33 of the support body 30. In the anti-vibration member 65, one end in a longitudinal direction is pivotally supported by the base member 61, and the other end in the longitudinal direction is connected to an upper front side of the shaft supporting bracket 50.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to a vibration damping structure for a support bracket and a construction method thereof.

Background Art

[0002] As a conventional opening and 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. There is known an opening and closing device.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] The opening and closing device described in Patent Document 1 above includes a winding shaft for winding and unwinding a shutter curtain, and shaft portions provided at both axial ends of this winding shaft are rotatably supported by left and right brackets via bearing members. By the way, in an opening and closing device having such a structure, for example, when a strong vibration occurs in a building (body) due to an earthquake or the like, the opening and closing device vibrates, and the bracket and the winding shaft are relatively displaced (relatively moved), so that the shaft portion of the winding shaft may fall off from the bearing member on the bracket side, and there is room for improvement. In recent years, for example, a strong support such as a steel frame is fixed to a body made of wood or the like to reinforce the building body, and the bracket of the opening and closing device may be fixed to this support. However, when attaching and fixing the bracket to the support, the attachment work may take time and effort, and there is room for improvement.

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

Means for Solving the Problems

[0006] In view of such problems, one aspect of the present invention has the following configuration. A structure for preventing the swing 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, the structure including a support fixed to the housing and a swing prevention structure body that prevents the swing of the shaft support bracket, the support having 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 swing prevention structure body having a base member attached and fixed to the horizontal frame member of the support and a long swing prevention member pivotally supported by the base member, the base of the shaft support bracket being attached and fixed to the vertical frame member of the support, and the swing prevention member having one end side in the longitudinal direction pivotally supported by the base member and the other end side in the longitudinal direction connected to the upper front side of the shaft support bracket.

Effects of the Invention

[0007] Since the present invention is configured as described above, the structure for preventing the swing of 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

MODE FOR CARRYING OUT THE INVENTION

[0009] (Embodiment) Next, an embodiment 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 (the 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 (the 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 inward 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, based on the left guide rail 40 in FIG. 1, the inner side in the width direction of the opening / closing body (the inner side in the left-right direction) is the right direction side. Further, the "outer side in the width direction of the opening / closing body" means the direction side that goes outward 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, based on the left guide rail 40 in FIG. 1, the outer side in the width direction of the opening / closing body (the outer side in the left-right direction) is the left direction 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 the installation mode of the anti-vibration structure of the 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 portion 20 that extends 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 / closing device 1 fixes the storage portion 20 to the wall surface Xa above the opening of the housing X, such as a wooden housing X, for example, so that the opening of the housing X is opened and closed by the opening / 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 that covers the wooden base x1.

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

[0013] The fire-resistant member x2 is a plate-shaped building material having fire resistance and heat insulation (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 prevents external heat and flames from being transmitted to the wooden base x1.

[0014] The opening / 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 / closing body 10 may be referred to as a slat shutter curtain. As another example of the opening / closing body 10, there may be a mode made of a flexible sheet such as a fire-resistant sheet, 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, and the like.

[0015] The storage unit 20 includes a winding shaft 21 for winding and unwinding the opening / closing body 10, a shaft support bracket 50 that supports the winding shaft 21 at both ends thereof, a winding shaft case 23 that covers the periphery of the winding shaft 21 and the opening / closing body 10 wound around the winding shaft 21, an opening / closing machine 24 that is a drive source for driving the winding shaft 21 to rotate, a support base frame 25 that supports and integrally holds the shaft support bracket 50, etc., and the like.

[0016] The winding shaft 21 is configured in a long cylindrical shape extending in the width direction of the opening / closing body and is rotatably supported. This winding shaft 21 may be in a mode in which a winding body is rotatably supported on the outer periphery of a non-rotatable fixed shaft via a bearing, or a mode in which a shaft portion integral with the winding body is rotatably supported by the shaft support bracket 50 via a bearing, and the like.

[0017] The winding 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 winding shaft case 23 is fixed to the support base frame 25 so as to cover the periphery of the winding shaft 21 and the opening / closing body 10 wound around the winding shaft 21 from the front side (left side according to FIG. 2).

[0018] The opening / closing machine 24 is composed of an electric motor, gears, etc. This opening / closing machine 24 is supported by one (right side according to FIG. 1) shaft support bracket 50, and its rotational force is transmitted to the winding 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 the lower end side thereof, 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] On the lower side of the support base frame 25, a shutter 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 shutter portion 26 is fixed to a fixed portion (for example, a connecting member 25a, a support 30, other immovable members on the ceiling side, etc.) near the ceiling portion 2.

[0021] The guide rail 40 is a long member that is continuous up and down at each of both end sides in the width direction of the opening / closing body 10. This guide rail 40 guides the width direction end portion of the opening / closing body 10 in the opening / closing direction and is fixed to the wall surfaces on both sides of the opening in the housing X. This guide rail 40 is formed of a hard metal material (for example, steel, stainless steel, aluminum alloy, etc.) and is fixed to the housing X by a fixing tool (for example, a screw, a nail, a bolt, etc.) not shown.

[0022] Also, the lower end portion of the guide rail 40 is fixed to a lower fixed portion (for example, a floor surface, a lower frame, a sill, etc.) via a mounting tool such as a mounting bracket, and the upper end portion of the guide rail 40 is fixed to an upper fixed portion (for example, the shutter portion 26, the ceiling portion 2, a steel material on the ceiling side, a beam material, etc.) via a mounting tool 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 portion 20 by connecting a plurality of long hard members (in the illustrated example, square steel pipes). As shown in FIG. 2, this support 30 is fixedly immovably attached to the wall surface Xa of the housing X by a fixing tool 38 (for example, a screw, a nail, a bolt, an anchor member, a 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 is integrally composed of a plurality (two in the illustrated example) of horizontally extending cross-frame members 32, 32 spaced apart in the vertical direction, vertically extending vertical-frame members 33, 33 connecting these cross-frame members 32, 32 at both ends in the width direction, a connecting member 34 connecting each cross-frame member 32, 32 at the central portion, and a protruding portion 31 protruding upward on the central side of the upper cross-frame member 32.

[0026] Each member constituting the support 30 (in the illustrated example, the cross-frame member 32, the vertical-frame member 33, the protruding portion 31, etc.) is formed of a hard metal material (for example, iron, aluminum alloy, stainless steel, etc.). These members are integrally connected by welding, connecting fittings, etc. Note that the cross-frame member 32 may be composed of a hard wooden material.

[0027] [Vertical-frame member] The left and right vertical-frame members 33 are composed of, for example, hollow square pipe materials having a substantially rectangular cross-sectional shape, and form a portion where the pivot bracket 50 is fixed. The pivot bracket 50 is 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 (three in the illustrated example) of working holes 33b1, 33b2, 33b3 for attachment work are formed for use during the attachment work (fastening work) of the pivot bracket 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) supporting this nut 54b is inserted (arranged) inside 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 an upper insertion hole 53a, a central insertion hole 53b, and a lower insertion hole 53c formed in an attachment portion 53 (see FIG. 5) of the shaft support bracket 50, and are formed as through holes such as a circle, an ellipse, a rectangle, etc. (a circle in the illustrated example).

[0030] Further, as shown in FIG. 4(b), the 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 surface portion 33b be t1, the distance between the central working hole 33b2 and the front edge of the outer surface portion 33b be t2, the distance between the lower working hole 33b3 and the front edge of the outer surface portion 33b be t3, and the distance between the central position m in the expected direction of the outer surface portion 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 displaced 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 surface portion 33b due to the formation of the working holes 33b1, 33b2, 33b3 can be suppressed.

[0033] Also, on the basis of 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 portion 33b of the vertical frame member 33 (m1>c1), by setting the intervals t1 and t3 between the upper and lower working holes 33b1 and 33b3 and the front edge of the outer side surface portion 33b to be larger than the interval t2 between the central working hole 33b2 and the front edge of the outer side surface portion 33b (t1,t3>t2), since the working holes 33b1, 33b2, and 33b3 can be arranged so as to be as close as possible to the front surface portion 33a side of the vertical frame member 33, the attachment 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 (structure) 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, and 53c of the pivot bracket 50. In this case, a larger external force (such as a tensile force) acts on the front surface portion 33a of the vertical frame member 33 by the fixing member 54 inserted and fixed in the upper insertion hole 53a of the pivot bracket 50 compared to the external force by other fixing members 54. However, since the interval t1 between the upper working hole 33b1 and the front edge of the outer side surface portion 33b is set to be larger than the interval t2 between the central working 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 pivot bracket 50 can be stably supported without the vertical frame member 33 being deformed.

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

[0036] [Horizontal frame member] The upper and lower horizontal frame members 32, 32 are composed of, for example, hollow square pipe members having a substantially rectangular cross-sectional shape, and are fixedly attached to the wall surface Xa of the housing X by fixing tools 38 (for example, screws, nails, bolts, 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 attached to the upper horizontal frame member 32. Note that the horizontal frame member 32 may be made of a hard wooden material.

[0037] [Protruding portion, connecting member] The protruding portion 31 and the connecting member 34 are composed of, for example, hollow square pipe members having a substantially rectangular cross-sectional shape. The protruding portion 31 is provided so as 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 attached to the protruding portion 31 by a fixing tool (for example, a screw, a nail, a 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 pivot bracket 50 will be described. Fig. 5 is a schematic perspective view showing an example of the pivot bracket according to the present invention. Fig. 6(a) is a schematic side view of the same pivot bracket, Fig. 6(b) is a schematic plan view of the same pivot bracket, and Fig. 6(c) is a schematic front view of the same pivot bracket.

[0039] The pivot 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 pivot 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 support bracket 50 disposed on one side (left side) in the left-right direction in the opening / closing device 1, but the 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 51a for inserting the shaft portion 21a (see FIG. 2) of the winding shaft 21 is formed in the support body 51 of the support bracket 50. This notch 51a is formed so as to form a recess that opens toward the front of the support bracket 50. The shaft portion 21a of the winding shaft 21 is rotatably supported in this notch 51a via a bearing member (not shown) fixed to the inside of the support bracket 50 with a fastening tool such as a screw or a bolt.

[0042] [Mounting portion] The mounting portion 53 of the 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, a bolt and a nut. The mounting 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) are formed so as to penetrate with a size substantially equal to the outer diameter of the shaft portion (screw portion) 54a2 of the fixing member 54 at a predetermined interval in the vertical direction.

[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 working 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 located at the upper position of the attachment portion 53 and is formed near the edge on the inner side in the left-right direction (the right side in FIG. 6(c)) of the attachment portion 53. The central insertion hole 53b is located at approximately the central position in the up-down direction of the attachment portion 53 and is formed near the connection edge with the support body 51 on the outer side in the left-right direction (the left side in FIG. 6(c)). The lower insertion hole 53c is located at the lower position of the attachment portion 53 and is formed 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, and 53c are arranged such that the adjacent insertion holes in the up-down direction are displaced in the left-right direction, a sufficient distance between the insertion holes 53a, 53b, and 53c can be ensured, and the workability when attaching the fixing member 54 is improved. Also, since the fixing positions of the fixing members 54 inserted into the insertion holes 53a, 53b, and 53c are displaced and dispersed in the left-right direction (not uniform in the up-down 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 the above-described embodiment and can be arbitrarily set. For example, the insertion holes 53a, 53b, and 53c may be arranged at approximately the central position in the left-right direction and spaced apart at uniform positions arranged in the up-down direction.

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

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

[0049] The anti-sway structure 60 prevents the pivot brackets 50 from swaying, so that even when a strong sway occurs in the building (frame) due to an earthquake or the like, the left and right pivot brackets 50 of the opening / closing device 1 do not undergo relative displacement (relative movement) in the axial direction of the winding shaft 21 (the left-right direction in FIG. 1) with respect to the winding shaft 21, thereby preventing the shaft portion 21a (see FIG. 2) of the winding shaft 21 from falling off (extracting) from the pivot brackets 50. That is, the pair of left and right pivot brackets 50 are restricted by this anti-sway structure 60 from expanding and moving in a spreading manner beyond a predetermined range.

[0050] The anti-sway structure 60 includes a base member 61 attached and fixed to the horizontal frame member 32 of the support 30, and an anti-sway member 65 disposed across between the base member 61 and the pivot bracket 50. This anti-sway structure 60 is disposed, for example, between the left and right pivot brackets 50 and the horizontal frame member 32 of the support 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 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 constituted by a metal material having strength and rigidity such as an L-shaped angle material.

[0052] An adjustment hole 62a formed of an oval long hole extending in the left-right direction (horizontal direction) is formed in the rising portion 62 of the base member 61 at a substantially central portion of the rising portion 62. Also, 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 mounting position of the base member 61 when fixing the base member 61 to the horizontal frame member 32 of the support 30. The left-right width W of this adjustment hole 62a is formed to be larger than the maximum shaft diameter d of the shaft portion (thread portion) 64b of the 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 (temporary fastening), the base member 61 can be moved in the left-right direction with respect to the horizontal frame member 32 to adjust its mounting position. Note that the left-right width W of the adjustment hole 62a can be set, for example, to 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 positioning and fixing the mounting position of the base member 61 immovably when fixing the base member 61 to the horizontal frame member 32, and its hole diameter D 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 the fastening member 64 into the positioning hole 62b of the rising portion 62 and fastening it, the base member 61 can be positioned immovably with respect to the horizontal frame member 32.

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

[0057] Note that in the above embodiment, the adjustment hole 62a is formed at approximately the center of the rising portion 62, and the positioning holes 62b are formed on the left and right so as to sandwich this adjustment hole 62a, but it 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] Further, a rod-shaped pivot pin 63a for pivotally supporting one end side of the anti-vibration member 65 is provided at a substantially central position of the horizontal portion 63 of the base member 61. This pivot pin 63a is provided, for example, by joining a shaft-shaped member made of metal by 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 pivot pin 63a of the base member 61 so as to be rotatable.

[0059] Note that instead of the pivot 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 formed 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 formed of, for example, a long member such as a flat metal plate or an L-shaped angle member. A first insertion hole 65a pivotally supported by the pivot pin 63a provided in 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 the 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 disposing 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 shake occurs in the building (frame) due to an earthquake or the like, the left and right pivot brackets 50 can be prevented from relatively displacing (relatively moving) 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] [Process A1 (Temporary Placement of the Shaft Support Bracket)] First, temporarily place the shaft support bracket 50 on the vertical frame member 33 of the support 30 fixed (installed) to the housing X. As shown in Fig. 8(a), bring the mounting portion 53 of the shaft support bracket 50 into contact with the front surface portion 33a of the vertical frame member 33 and arrange it at a predetermined position. In this case, since the upper work hole 33b1, the central work hole 33b2, and the lower work hole 33b3 are formed in advance on the outer surface portion 33b of the vertical frame member 33, the center positions of these work holes 33b1, 33b2, 33b3 and the upper insertion hole 53a, the central insertion hole 53b, and the lower insertion hole 53c formed in the mounting portion 53 are arranged side by side at positions of substantially the same height, so that the arrangement position can be set.

[0065] Next, using a tool such as a drill, form through holes (not shown) in the vertical frame member 33 of the support 30 that communicate with the insertion holes 53a, 53b, 53c of the mounting portion 53, and insert the shaft portion 54a2 of the fixing member 54 into these through holes and the insertion holes 53a, 53b, 53c of the mounting portion 53 to temporarily place the shaft support bracket 50 on the vertical frame member 33.

[0066] [Process A2 (Fixing of the Shaft Support Bracket)] Next, as shown in Fig. 8(b), sequentially insert and arrange the nut 54b of the fixing member 54 and a tool 55 (for example, a wrench or a spanner) that supports this nut 54b into the work holes 33b1, 33b2, 33b3 formed in the outer surface portion 33b of the vertical frame member 33, and rotate and fasten the head 54a1 of the bolt 54a of the fixing member 54 exposed on the surface of the mounting portion 53 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 (prevented from rotating) by the tool 55, it can be easily fastened by rotating the head 54a1 of the bolt 54a in this state. Note that the head 54a1 of the bolt 54a exposed on the surface of the mounting 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 work holes 33b1, 33b2, 33b3.

[0067] <Installation method (installation process) of anti-vibration structure> Next, the anti-vibration structure 60 is installed. FIGS. 9 and 10 are explanatory views showing the installation process of the anti-vibration structure according to the present invention.

[0068] [Step B1 (Temporary placement of anti-vibration structure)] After the shaft support 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 shaft support 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 place 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 side, 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 on the other end side of the anti-vibration member 65 communicates with the through hole 52a formed on the upper flange portion 52 of the shaft support bracket 50.

[0070] [Step B2 (Temporary fixing of base member)] Next, as shown in FIG. 9(b), the base member 61 is temporarily fixed (temporarily fastened) to the horizontal frame member 32 of the support 30. Specifically, for example, the shaft portion (screw 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 shaft support bracket 50 to connect the shaft support bracket 50 and the anti-vibration member 65, and the base member 61 is temporarily fixed (temporarily fastened) to the horizontal frame member 32 of the support 30. In this case, for example, a fastening member 64 made of a drill screw or the like may be inserted through and loosely screwed at a position substantially 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 fastened) 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 making this temporary fixing (temporary fastening), a through hole (not shown) for inserting / screwing the shaft portion 64a of the fastening member 64 into the horizontal frame member 32 may be formed using a tool such as a drill.

[0071] [Process B3 (Position adjustment of the shaft support bracket and the base member)] Next, as shown in Fig. 10(a), the position is adjusted to appropriately correct the opening state in the left - right direction of the shaft support bracket 50, the falling state of the shaft support bracket 50, etc. In this case, the base member 61 is disposed movably in the left - right direction in a temporarily fixed (temporarily fastened) state to the horizontal frame member 32, and can move in the left - right direction as the position of the shaft support bracket 50 is adjusted. Therefore, the position of the opening state, etc. of the shaft support bracket 50 can be easily adjusted. In other words, by adjusting the position of the base member 61 in the left - right direction, the opening state of the shaft support bracket 50 in the left - right direction can be corrected.

[0072] [Process B4 (Permanent fixing of the base member)] After the position adjustment in Process B3, the base member 61 is permanently fixed immovably to the horizontal frame member 32. In this case, as shown in Fig. 10(b), for example, the 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 permanently fixing (positioning and fixing) the base member 61 immovably and firmly to the horizontal frame member 32. Note that when making this permanent fixing, a through hole (not shown) for inserting / screwing the fastening member 64 into the horizontal frame member 32 may be formed 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 shaft support bracket 50 can be easily and simply 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, etc. can be easily performed over a long period.

[0074] Further, an adjustment hole 62a is formed in the base member 61 of the anti-vibration structure 60, and since it can be 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 of the support 30, it is possible to easily perform position adjustment for appropriately correcting (modifying) the left-right opening state and the falling state of the pivot bracket 50. Furthermore, since a positioning hole 62b is formed in the base member 61 of the anti-vibration structure 60 adjacent to the adjustment hole 62a, by fastening the fastening member 64 to this positioning hole 62b, the base member 61 can be fixedly and firmly fixed (positionally fixed) to the horizontal frame member 32.

[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 independent work holes 33b1, 33b2, 33b3 for attaching the pivot bracket 50 are formed in the outer surface portion 33b of the vertical frame member 33 in the support 30, but it is not limited to this example. For example, it may be configured such that the attachment work (fastening work) of the pivot bracket 50 can be performed by forming a single (one) long hole extending vertically. In this case, the 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 configuration 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) An anti-vibration 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, the anti-vibration structure including a support fixed to the body and an anti-vibration structure body that anti-vibrates the shaft support bracket, the support having a horizontal frame member extending in a horizontal direction and a pair of left and right vertical frame members extending in a vertical direction and connected to left and right ends of the horizontal frame member, the anti-vibration structure body having a base member attached and fixed to the horizontal frame member of the support and a long anti-vibration member pivotally supported by the base member, wherein a base of the shaft support bracket is attached and fixed to the vertical frame member of the support, and one end side in a longitudinal direction of the anti-vibration member is pivotally supported by the base member and the other end side in the longitudinal direction is connected to an upper front side of the shaft support bracket. (2) The base member has a rising portion extending in a vertical direction and attached and fixed to the horizontal frame member of the support, and the rising portion is formed with an adjustment hole formed of a long hole extending in a left-right direction for temporarily fixing the attachment position of the base member with respect to the horizontal frame member so as to be position-adjustable in the left-right direction, and a positioning hole formed of a round hole for positioning and fixing the attachment position of the base member with respect to the horizontal frame member immovably. The anti-vibration structure of the shaft support bracket according to (1) above. (3) The adjustment hole is formed substantially at the center of the rising portion, and a plurality of positioning holes are formed adjacent to each other on the left and right so as to sandwich the adjustment hole. The anti-vibration structure of the shaft support bracket according to (2) above. (3) The base member has a horizontal portion extending horizontally from the lower end of the rising portion to the front side, and a rod-shaped pivot pin for pivotally supporting one end side of the anti-vibration member is provided on the horizontal portion. The anti-vibration structure of the shaft support bracket according to (2) or (3) above. (5) The pivot bracket has a flat support body, upper and lower flange portions bent outward in the width direction of the opening / closing body from the upper and lower edge portions of the support body, and a mounting portion forming the base portion bent inward in the width direction of the opening / closing body from the rear edge portion of the support body. A first insertion hole pivotally supported by the pivot pin provided on the horizontal portion of the base member is formed at one end side of the anti-vibration member, and a second insertion hole for inserting the shaft portion of the connector in communication with a through hole formed at the front end side of the upper flange portion of the pivot bracket is formed at the other end side of the anti-vibration member. The anti-vibration structure of the pivot bracket according to the above (4), characterized in that. (6) A construction method in the anti-vibration structure of the pivot bracket according to the above (1), comprising a step of attaching and fixing the pivot bracket to the vertical frame member of the support fixed to the housing, a step of connecting the other end side in the longitudinal direction of the anti-vibration member pivotally supported by the base member to the upper front side of the pivot bracket, and temporarily fixing the base member in a state where it can be positionally adjusted in the left-right direction with respect to the horizontal frame member, and a step of correcting the opening state in the left-right direction of the pivot bracket by adjusting the position of the base member in the left-right direction, and a step of fixedly fixing the base member to the horizontal frame member immovably. The construction method in the installation structure of the pivot bracket, characterized by having.

Explanation of Signs

[0079] 1: Opening / closing device 10: Opening / closing body 21: Winding shaft 30: Support 32: Horizontal frame member 33: Vertical frame member 33a: Front face portion 33b: Outer face portion 33b1: Upper working hole 33b2: Central working hole 33b3: Lower working hole 50: Pivot bracket 51: Support body 52: Flange portion 52a: Through hole 53: Mounting portion (base portion) 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 portion 62a: Adjustment hole 62b: Positioning hole 63: Horizontal portion 63a: Support pin 65: Anti-vibration member 65a: First insertion hole 65b: Second insertion hole X: Body

Claims

1. A structure for preventing the swing of a shaft support bracket in an opening and closing device including an opening and closing body for opening and closing an opening of a body, a winding shaft around which the opening and closing body is wound, and a pair of left and right shaft support brackets for rotatably supporting the winding shaft, a support fixed to the body, and a swing prevention structure body for preventing the swing of the shaft support bracket, wherein 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 and connected to the left and right ends of the horizontal frame member, the swing prevention structure body has a base member attached and fixed to the horizontal frame member of the support and a long swing prevention member pivotally supported by the base member, a base of the shaft support bracket is attached and fixed to the vertical frame member of the support, and one end side in the longitudinal direction of the swing prevention member is pivotally supported by the base member and the other end side in the longitudinal direction is connected to the upper front side of the shaft support bracket characterized by the structure for preventing the swing of the shaft support bracket.

2. The base member has a rising portion extending in the vertical direction and attached and fixed to the horizontal frame member of the support, and an adjustment hole formed by a long hole extending in the left - right direction for temporarily fixing the attachment position of the base member to the horizontal frame member so as to be adjustable in the left - right direction and a positioning hole formed by a round hole for positioning and fixing the attachment position of the base member to the horizontal frame member are formed in the rising portion characterized by the structure for preventing the swing of the shaft support bracket according to Claim 1.

3. The adjustment hole is formed substantially at the center of the rising portion, and a plurality of positioning holes are formed adjacent to each other on the left and right so as to sandwich the adjustment hole characterized by the structure for preventing the swing of the shaft support bracket according to Claim 2.

4. The base member has a horizontal portion extending horizontally from the lower end of the rising portion to the front side, and a rod - shaped pivot pin for pivotally supporting one end side of the swing prevention member is provided on the horizontal portion characterized by the structure for preventing the swing of the shaft support bracket according to Claim 2.

5. The shaft support bracket has a flat plate - shaped support body, upper and lower flange portions bent outward in the width direction of the opening and closing body from the upper and lower edge portions of the support body, and an attachment portion forming the base bent inward in the width direction of the opening and closing body from the rear edge portion of the support body, and a first insertion hole pivotally supported by the pivot pin provided on the horizontal portion of the base member is formed at one end side of the swing prevention member On the other end side of the anti-vibration member, a second insertion hole is formed through which the shaft portion of the connector is inserted in communication with a through hole formed in the front end side of the flange portion above the shaft support bracket. The anti-vibration structure of the shaft support bracket according to claim 4, characterized in that.

6. A construction method for the anti-vibration structure of the shaft support bracket according to claim 1, comprising: a step of attaching and fixing the shaft support bracket to the vertical frame member of the support fixed to the housing; a step of connecting the other longitudinal end side of the anti-vibration member pivotally supported by the base member to the upper front side of the shaft support bracket and temporarily fixing the base member in a state where its position can be adjusted in the left-right direction with respect to the horizontal frame member; a step of correcting the left-right opening state of the shaft support bracket by adjusting the left-right position of the base member; a step of fixedly securing the base member immovably to the horizontal frame member. The construction method for the installation structure of the shaft support bracket, characterized in that.

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