Hanging bolt support bracket

Abstract

To improve work efficiency for supporting a body to be supported to a hanging bolt.SOLUTION: A dummy support 1 for a hanging bolt comprises: a fastening member body 101; a holding member body 201 that holds a suspension bolt 400 between itself and the fastening member body; a first bolt 106 and a nut 107 that fastens a body to be fastened to the fastening member body; a first falling prevention tool 111 that prevents the first bolt and the nut from falling off from the fastening member body and, maintains a state in which the first bolt and the nut are temporarily assembled to the fastening member body; a second bolt 208 that fastens the hanging bolt between the fastening member body and the holding member body; and a second falling prevention tool 211 that prevents the second bolt from falling off from the holding member body, and maintains a state in which the second bolt is temporarily assembled to the holding member body.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a support fitting for a suspension bolt that supports a channel member or other supported object on a suspension bolt. [Background technology]

[0002] Various types of support fittings for suspension bolts are known for supporting and fixing various steel materials, such as channel materials, at the midpoint of a fully threaded bolt (suspension bolt) suspended from a ceiling slab or the like (see, for example, Patent Document 1). In this prior art, the suspension bolt is sandwiched between two types of fittings (a locking fitting with a U-shaped cross section and a connecting fitting) and fastened with a pair of bolts. Another bolt is then passed through the bolt hole of the connecting fitting, and the steel material is sandwiched between the bolts and screwed into a plate nut to fix the steel material.

[0003] In this prior art, the two types of metal fittings, three bolts, and plate nuts were packaged separately and had to be temporarily assembled at the work site before being attached to the suspension bolt, which did not result in very high work efficiency. While it is possible to temporarily assemble them in advance, sandwiching the suspension bolt between the two types of metal fittings requires removing at least one of the bolts from the temporarily assembled state, which requires additional work. Furthermore, even if the products are shipped in a temporarily assembled state, it is difficult to prevent the bolts and plate nuts from falling off due to vibrations during delivery, etc. In that case, it becomes necessary to collect the scattered two types of metal fittings, three bolts, and plate nuts and assemble them appropriately, which is not desirable because it adds to the tedious work of doing so.

[0004] In addition, it was necessary to adjust the height of the steel material relative to the hanging bolts, but in doing so, it was necessary to temporarily tighten the bolts, check their position, then loosen the bolts and move them again, repeating this process to fine-tune the height of the metal fittings, which made the work extremely inefficient.

[0005] In addition, two types of metal fittings are fastened with a pair of bolts sandwiching the hanging bolt, but if the fastening is uneven, the metal fittings may become misaligned, resulting in a decrease in holding power and other problems. For this reason, it is necessary to alternately screw in the pair of bolts little by little to tighten them evenly, which is one of the factors that reduces work efficiency.

[0006] Furthermore, to attach the steel material to the suspension bolt, it is necessary to tighten the bolts at three points, and it is desirable to reduce the number of bolt tightening points in order to improve work efficiency.

[0007] In addition, although the pair of bolts connecting the two types of metal fittings are the same size, the other bolts that are screwed into the plate nut are different sizes from the pair of bolts, which requires the effort of changing sockets and ratchet wrenches. [Prior art documents] [Patent documents]

[0008] [Patent Document 1] Japanese Patent Application Publication No. 10-185007 Summary of the Invention [Problem to be solved by the invention]

[0009] The object is to provide a support fitting for a suspension bolt that can improve the efficiency of the work of supporting a supported object on a suspension bolt. [Means for solving the problem]

[0010] The support fitting for a hanging bolt in this embodiment, which supports a channel material or other supported object on a hanging bolt, comprises a fastening member body, a clamping member body for clamping the hanging bolt between the fastening member body, a first bolt and a nut for fastening the supported object to the fastening member body, a first anti-fall-out device that prevents the first bolt and the nut from falling off from the fastening member body and maintains the first bolt and the nut in a temporarily assembled state to the fastening member body, a second bolt for tightening the hanging bolt between the fastening member body and the clamping member body, and a second anti-fall-out device that prevents the second bolt from falling off from the clamping member body and maintains the second bolt in a temporarily assembled state to the clamping member body. [Brief explanation of the drawings]

[0011] [Figure 1] FIG. 1 is a perspective view showing a support bracket for a suspension bolt according to a first embodiment. [Figure 2] FIG. 2 is an exploded perspective view of the suspension bolt support bracket of FIG. 1. [Figure 3] FIG. 2 is a front view of the suspension bolt support bracket of FIG. 1. [Figure 4] FIG. 2 is a side view of the suspension bolt support bracket of FIG. 1. [Figure 5] FIG. 2 is a plan view of the suspension bolt support bracket of FIG. 1. [Figure 6] 4 is a cross-sectional view taken along the line AA in FIG. 3. [Figure 7] 2A to 2C are diagrams showing a process of attaching the suspension bolt support bracket of FIG. 1 to the suspension bolt. [Figure 8] 2 is a diagram showing a state in which a channel member is attached vertically to the suspension bolt support bracket of FIG. 1. FIG. [Figure 9] 2 is a diagram showing a state in which a channel member is attached laterally to the suspension bolt support bracket of FIG. 1. FIG. [Figure 10] FIG. 2 is a perspective view showing a modified example of the suspension bolt support fitting of FIG. [Figure 11] FIG. 11 is an exploded perspective view of the suspension bolt support bracket of FIG. 10. [Figure 12] FIG. 10 is a perspective view showing a support bracket for a suspension bolt according to a second embodiment. [Figure 13] FIG. 13 is an exploded perspective view of the suspension bolt support bracket of FIG. 12. [Figure 14] FIG. 13 is a plan view of the suspension bolt support bracket of FIG. [Figure 15] FIG. 10 is a perspective view showing a support bracket for a suspension bolt according to a third embodiment. [Figure 16] FIG. 16 is an exploded perspective view of the suspension bolt support bracket of FIG. 15. [Figure 17] FIG. 16 is a plan view of the suspension bolt support bracket of FIG. DETAILED DESCRIPTION OF THE INVENTION

[0012] The support bracket for a suspension bolt according to this embodiment will be described below with reference to the drawings. In the following description, components having the same functions and configurations are designated by the same reference numerals, and redundant description will be given only when necessary.

[0013] (First embodiment) 1 to 6 show the suspension bolt support bracket 1 according to the first embodiment by itself. FIG. 7 shows the process of attaching the suspension bolt support bracket 1 to a suspension bolt. FIGS. 8 and 9 show a state in which a channel material 500 with a U-shaped cross section is supported by the suspension bolt support bracket 1 on the suspension bolt 400. Note that, while the supported object is described here using the channel material 500 with a U-shaped cross section as an example, it is not limited to the channel material 500 and may be other steel materials such as an L-shaped angle. Furthermore, the suspension bolt support bracket 1 is compatible with suspension bolts 400 of various outer diameters that fit into the arc-shaped recess 209 described below.

[0014] The support fitting 1 for a suspension bolt comprises a fastening member 100 for fastening the channel member 500, and a clamping member 200 for clamping the suspension bolt 400 between the fastening member 100 and the clamping member 200.

[0015] The fastening member 100 has a fastening member body 101. The fastening member body 101 is made by bending a steel plate into an L-shaped cross section, and is composed of a rectangular horizontal plate 102 and a rectangular vertical plate 103. The left, right, and front edge portions of the horizontal plate 102 are bent vertically downward to serve as presser plates 104 for preventing the channel member 500 from rotating.

[0016] A bolt hole 105 is drilled in approximately the center of the horizontal plate 102. A bolt (first bolt) 106 is inserted into the bolt hole 105 from above and screwed into a screw hole 108 of a plate nut 107. The plate nut 107 is formed by bending a steel plate into a U-shaped cross section, and is configured into a groove shape from a bottom plate 109 and a pair of side plates 110. The bottom plate 109 of the plate nut 107 has a rectangular shape, with a width (length of the short side) shorter than the gap (opening) between the pair of lip pieces 502 of the channel material 500 and a length (length of the long side) shorter than the distance (inner dimension) between the insides of the pair of side plates 501 of the channel material 500. This allows the plate nut 107 to be positioned parallel to the channel material 500, and the plate nut 107 to be inserted into the inside of the channel material 500 through the opening in the lip piece 502 of the channel material 500, and the plate nut 107 to be rotated approximately 90° so that the lip piece 502 of the channel material 500 can be sandwiched and fastened between the side plate 110 of the plate nut 107 and the horizontal plate 102.

[0017] The bolt 106 is shipped in a provisionally assembled state, inserted into the bolt hole 105 of the horizontal plate 102 and loosely screwed into the plate nut 107. If left as is, the bolt 106 and the plate nut 107 will rotate freely relative to each other due to vibrations during transportation, etc., and may separate from each other, causing the bolt 106 to come out of the bolt hole 105 of the horizontal plate 102 and the plate nut 107 to break away from the fastening member body 101. To prevent this from happening and to deliver the bolt 106 to the site while maintaining the provisionally assembled state, a fall-off prevention device (first fall-off prevention device) 111 is fitted into the bolt 106.

[0018] As shown in Figure 2, the fall-off prevention device 111 is composed of a partially cut-out annular portion 112 and protruding abutment portions 114 that are connected to the annular portion 112 on the side opposite the cut-out and that protrude a predetermined distance on both sides from the outer periphery of the annular portion 112. The annular portion 112 and abutment portions 114 are formed as an integrally molded body using a resin such as polyacetal (POM), polyamide (PA), or polycarbonate (PC) that has high abrasion resistance and elasticity. The inner diameter of the annular portion 112 is slightly narrower than the outer diameter of the bolt 106, and the bolt 106 is press-fitted and attached from the side by its elasticity. The inner surface of the annular portion 112 is formed with threads 113 that engage with the thread groove of the bolt 106 to prevent misalignment. The overall width of the abutment portion 114 is configured to be equal to or slightly narrower than the distance between the insides of the pair of side plates 110 of the plate nut 107 so that the abutment portion 114 can fit inside the pair of side plates 110 of the plate nut 107.

[0019] The fall prevention device 111 is inserted into the bolt hole 105 of the horizontal plate 102 and is press-fitted from the side onto the bolt 106 that is loosely screwed into the plate nut 107. The fall prevention device 111 is fitted inside the plate nut 107 that is attached to the bolt 106, that is, it is disposed between the bottom plate 109 and the edge of the side plate 110.

[0020] The annular portion 112 of the captive device 111 is press-fitted onto the bolt 106 and attached, thereby preventing free rotation of the bolt 106. Furthermore, both ends of the abutting portion 114 of the captive device 111 abut against the inner surfaces of the pair of side plates 110 of the plate nut 107, so the plate nut 107 does not rotate independently of the captive device 111. As a result, the bolt 106 and the plate nut 107 are prevented from freely rotating relative to each other via the captive device 111. This ensures a provisionally assembled state.

[0021] Furthermore, when the bolt 106 is tightly tightened to the plate nut 107 to fasten the channel material 500 to the fastening member body 101, the thread 113 formed on the inner surface of the annular portion 112 engages with the thread groove of the bolt 106 and moves along the axial direction of the bolt 106 together with the plate nut 107 as the bolt 106 rotates, so that the fall-off prevention device 111 does not hinder the fastening of the channel material 500. The same applies when the bolt 106 is loosened to remove the channel material 500 from the fastening member body 101.

[0022] A rectangular hole 115 is drilled parallel to the vertical direction near the rear end of the vertical plate 103. Rectangular hole 115 is formed with a rectangular hole portion 116 and a slightly shorter rectangular hole portion 117 connected to form a stepped hole shape. Short rectangular hole portion 117 is located closer to the rear end than the slightly longer rectangular hole portion 116. The length of the slightly longer rectangular hole portion 116 is configured to be long enough to allow a strip-shaped hooking piece 202 of a clamping member main body 201 (described later) to pass through, while the length of the slightly shorter rectangular hole portion 117 is configured to be long enough to prevent insertion of the hooking piece 202, but to receive the hooking piece 202 only in notches 203 cut out on both sides near the tip of the rectangular hole portion 117. As a result, the hooking piece 202 of the clamping member body 201 is inserted into the rectangular hole 115 of the vertical plate 103 through the rectangular hole portion 116 and pushed into the rectangular hole portion 117, whereby the hooking piece 202 is engaged with the rectangular hole portion 117 at the notch 203. The clamping member body 201 is cantilevered relative to the fastening member body 101 and can be tilted freely.

[0023] When the hooking piece 202 of the clamping member body 201 is inserted into the rectangular hole 115 of the vertical plate 103 and pushed toward the rear end, a gap is created in the rectangular hole 115, and a leaf spring 204 with a U-shaped or V-shaped cross section fits into the gap in the rectangular hole 115 in a state of being slightly closed against its elasticity. This prevents the hooking piece 202 from coming out of the rectangular hole 115 and the clamping member body 201 from separating from the fastening member body 101, and also rotates the tip of the clamping member body 201 around the engagement point between the rectangular hole 115 and the hooking piece 202 as a fulcrum so as to press the tip of the clamping member body 201 against the vertical plate 103 of the fastening member body 101, thereby temporarily fixing the suspension bolt 400 between the clamping member body 201 and the vertical plate 103 of the fastening member body 101, that is, temporarily fastening the suspension bolt 400.

[0024] One spring plate 216 of the leaf spring 204 has a width that matches the length of the rectangular hole portion 116 so as to fit into the slightly longer rectangular hole portion 116, and the other spring plate 215 has a width that matches the length of the rectangular hole portion 117 so as to fit into the slightly shorter rectangular hole portion 117. This allows the leaf spring 204 to press the latch piece 202 against the rectangular hole portion 117.

[0025] To prevent the leaf spring 204 from sinking into the rectangular hole 115, the edges of the spring plates 215 and 216 protrude outward to form flanges 217 and 218. The spring plate 215 is provided with a hook portion 219 that protrudes outward. The latching piece 202 is provided with a hook receiving hole 220 that receives the hook portion 219. When the leaf spring 204 is pressed into the rectangular hole 115, the hook portion 219 fits into the hook receiving hole 220 of the latching piece 202, preventing the leaf spring 204 from falling out. The spring plate 216 is also provided with a hook portion 221 that protrudes outward from the flange 218 at a distance approximately equivalent to the thickness of the vertical plate 103. When the flat spring 204 is pressed into the rectangular hole 115 , the flange portion 218 and the hook portion 221 pinch the vertical plate 103 , thereby fixing the flat spring 204 to the vertical plate 103 .

[0026] By fitting the leaf spring 204 into the gap between the edge of the rectangular hole portion 116 and the hooking piece 202, the hooking piece 202 is prevented from coming out of the rectangular hole 115, so the clamping member body 201 and the fastening member body 101 are maintained in a temporarily assembled state. This allows them to be shipped in a temporarily assembled state and transported to the work site as is. In addition, the elasticity of the leaf spring 204 urges the clamping member body 201 to rotate, and the tip side of the clamping member body 201 is pressed against the vertical plate 103 of the fastening member body 101. This allows the hanging bolt 400 to be temporarily fixed (temporarily fastened) between the clamping member main body 201 and the vertical plate 103 of the fastening member main body 101, and the height of the hanging bolt support bracket 1 attached to the hanging bolt 400 can be easily adjusted by moving the hanging bolt support bracket 1 relative to the hanging bolt 400 while expanding the clamping member main body 201 relative to the fastening member main body 101 against the elastic force of the leaf spring 204.

[0027] The clamping member 200 has a clamping member body 201. The clamping member body 201 is formed by bending a rectangular steel plate in the short direction to form a rectangular base plate 205 and a pair of side plates 206, so that the cross section of the clamping member body 201 is U-shaped, and the steel plate is also bent in the long direction to form an L-shaped cross section with a rectangular hook piece 202 extending from the rear end of the base plate 205. Each of the pair of side plates 206 is formed with an arc-shaped recess 209, such as a semicircular recess, for receiving a suspension bolt 400. The edges forming the recess 209 in the side plate 206 are thinned to engage with the thread groove of the suspension bolt 400 and prevent displacement. The vertical plate 103 of the fastening member body 101 is also provided with a pair of linear protrusions 119 that engage with the thread groove of the suspension bolt 400. The side plate 206 is tapered from the rear end to the front end, making it easy to insert the suspension bolt 400.

[0028] An oval bolt hole 207 is drilled at the tip end of the base plate 205, through which a bolt (second bolt) 208 is inserted. The bolt 208 has the same shape and size as the bolt 106. By passing the bolt 208 through the bolt hole 207 and screwing it into a screw hole 118 drilled in the vertical plate 103 of the fastening member main body 101, the suspension bolt 400 received in the recess 209 is clamped between the side plate 206 of the clamping member main body 201 and the vertical plate 103 of the fastening member main body 101. This allows the suspension bolt support bracket 1 to be fixed to the suspension bolt 400.

[0029] At the time of shipment, bolt 208 is temporarily assembled in a state where it is inserted into bolt hole 207 of base plate 205, but not screwed into screw hole 118 of vertical plate 103. To prevent bolt 208 from coming out of bolt hole 207 of base plate 205 and to maintain the temporarily assembled state, a fall prevention device (second fall prevention device) 211 is fitted near the tip of bolt 208. Fall prevention device 211 has a partially cut-out circular ring portion 212. Circular ring portion 212 is press-fitted onto bolt 208, and because circular ring portion 212 cannot pass through bolt hole 207 of base plate 205, bolt 208 is prevented from coming out of bolt hole 207 of base plate 205.

[0030] The fall-off prevention device 211 may be configured to have the same shape and dimensions as the fall-off prevention device 111, that is, it is made up of a circular ring portion 212 and a protruding abutment portion 214 that is joined to the circular ring portion 212 on the side opposite the cutout and that protrudes a predetermined distance on both sides from the circular ring portion 212. The circular ring portion 212 and the abutment portion 214 are configured as an integrally molded body made of resin such as polyacetal (POM), polyamide (PA), or polycarbonate (PC).

[0031] The inner diameter of the annular portion 212 is slightly narrower than the outer diameter of the bolt 208, so that it can be press-fitted onto the bolt 208 from the side by its elasticity. A thread 213 that screws into the thread groove of the bolt 208 is formed on the inner surface of the annular portion 212. The overall width of the abutting portion 214 is configured to be equal to or narrower than the distance between the insides of the pair of side plates 206 of the clamping member body 201 (inner dimension), so that the abutting portion 214 can fit inside the pair of side plates 206 of the clamping member body 201. The abutting portion 214 has a width that is larger than the width of the elongated hole of the bolt hole 207 and will not fall out.

[0032] As shown in Figure 7(a), the suspension bolt support bracket 1 is delivered to the work site in a partially assembled state. The bolt 208 is inserted into the bolt hole 207 of the base plate 205, and a fall-off prevention device 211 is attached to the tip of the bolt. This prevents the bolt 208 from coming out of the bolt hole 207 of the clamping member body 201, and the inserted state can be maintained. In addition, the hooking piece 202 of the clamping member body 201 is inserted into the rectangular hole 115 of the fastening member body 101, and the leaf spring 204 is fitted in the gap. This prevents the hooking piece 202 from coming out of the rectangular hole 115, and the clamping member body 201 can be maintained assembled to the fastening member body 101.

[0033] Furthermore, bolt 106 is inserted into bolt hole 105 in horizontal plate 102 of fastening member body 101 and loosely screwed into plate nut 107. A fall-off prevention device 111 is attached to this bolt 106 at a position that fits inside plate nut 107. Fall-off prevention device 111 prevents plate nut 107 from freely rotating relative to bolt 106, preventing bolt 106 from coming out of bolt hole 105 and preventing plate nut 107 from coming off bolt 106. This ensures that bolt 106 and plate nut 107 are temporarily assembled to horizontal plate 102 of fastening member body 101.

[0034] Since the temporarily assembled state of the suspension bolt support fitting 1 is maintained, it can be shipped and delivered to the work site in that temporarily assembled state, so that temporary assembly work is not required at the work site, and work of attaching the suspension bolt support fitting 1 to the suspension bolt 400 and attaching the channel material 500 to the suspension bolt support fitting 1 can be started immediately.

[0035] 7(b), when attaching the suspension bolt support bracket 1 to the suspension bolt 400, the worker spreads the clamping member body 201 and the vertical plate 103 of the fastening member body 101 apart, using the engagement point between the rectangular hole 115 and the hook piece 202 as a fulcrum against the elasticity of the leaf spring 204. In this state, the worker inserts the suspension bolt 400 from the side between the clamping member body 201 and the vertical plate 103 of the fastening member body 101 and then releases the operator. Of course, due to the elastic force of the leaf spring 204 and the tapered configuration of the side plate 206, the bolt 400 can be inserted into 209 even when pushed in.

[0036] As shown in Figure 7(c), the clamping member body 201 and the vertical plate 103 of the fastening member body 101 clamp the suspension bolt 400 due to the elasticity of the leaf spring 204. This causes the suspension bolt support bracket 1 to be locked (temporarily fastened) to the suspension bolt 400. To fine-tune the height of the suspension bolt support bracket 1 relative to the suspension bolt 400, the worker separates the clamping member body 201 and the vertical plate 103 of the fastening member body 101, releases the lock of the suspension bolt support bracket 1 relative to the suspension bolt 400, moves along the suspension bolt 400, and releases the lock at an appropriate height, whereby the suspension bolt support bracket 1 is again locked to the suspension bolt 400 at that height. Since there is no need to loosen or tighten the bolt to temporarily fasten it, the fine height adjustment work is made more efficient.

[0037] As shown in Figure 7(d), to secure the suspension bolt support bracket 1 to the suspension bolt 400, the bolt 208 is aligned with the screw hole 118 in the vertical plate 103 and tightened. Since the fastening member body 101 has the hook piece 202 engaged with the rectangular hole portion 117 in the vertical plate 103, tightening the single bolt 208 firmly secures the suspension bolt support bracket 1 to the suspension bolt 400, which is more efficient than tightening a pair of bolts evenly by alternately screwing them in little by little.

[0038] To fasten the channel member 500 to the suspension bolt support bracket 1 fixed to the suspension bolt 400, first, the channel member 500 is arranged vertically relative to the suspension bolt support bracket 1 as shown in FIG. 8 or horizontally as shown in FIG. 9, and the plate nut 107, oriented vertically or horizontally, is inserted into the channel member 500 through the gap (opening) in the lip piece 502 of the channel member 500. When the bolt 106 is then tightened, the plate nut 107 rotates as the bolt 106 rotates, and the plate nut 107 stops with both long sides in contact with the inner surface of the side plate 501 of the channel member 500. When the bolt 106 is further tightened, the lip piece 502 of the channel member 500 can be fastened between the upper edge of the side plate 110 of the plate nut 107 and the lower surface of the horizontal plate 102. The plate nut 107 is loosely secured to the bolt 106 by the fall prevention device 111, so the plate nut 107 can be easily inserted into the gap in the lip piece 502 of the channel material 500. Furthermore, because the bolt 106 has the same shape and size as the bolt 208, there is no need to replace the socket or ratchet wrench. The channel material 500 can be attached to the suspension bolt 400 by tightening two bolts 106 and 208, which improves workability compared to the conventional method, which required tightening three bolts. The abutment portion 114 of the fall prevention device 111 prevents the plate nut 107 from rotating when tightening the bolt 106. Therefore, there is no need to manually hold the plate nut 107 in place to align it with the orientation of the channel material.

[0039] 10 and 11. The fastening member body 301 is formed by bending a steel material into a U-shaped cross section, and has screw holes 318 corresponding to the screw holes 118, rectangular holes 315 corresponding to the rectangular holes 115, and bolt holes 305 corresponding to the bolt holes 105, and also has linear protrusions 319 corresponding to the linear protrusions 119.

[0040] (Second embodiment) 12 to 14 show a support bracket for a hanger bolt according to the second embodiment. The main differences between the support bracket for a hanger bolt 2 according to this embodiment and the support bracket for a hanger bolt 1 according to the first embodiment are the structure for temporarily assembling the clamping member body 701 to the fastening member body 601, and the temporary fastening structure for pressing the clamping member body against the fastening member body.

[0041] In the temporary assembly structure, bolt 208 is inserted into bolt hole 207 of clamping member body 701 and screwed into threaded hole 118 of fastening member body 601. Fastening member body 601 is also bent into a U-shaped cross section to form a pair of side plates 602, and a pair of side plates 206 of clamping member body 701 are fitted into the gap between the pair of side plates 602 so as to lock together against rotation. Furthermore, fall-off prevention device 211 is attached to bolt 208 so that its abutting portion 214 abuts against the pair of side plates 206 of clamping member body 701. Because rotation of bolt 208 relative to clamping member body 701 is prevented and fastening member body 601 does not rotate relative to clamping member body 701, bolt 208 does not fall out of threaded hole 118 of fastening member body 601, clamping member body 701 does not separate from fastening member body 601, and temporary assembly is achieved.

[0042] Regarding the temporary fastening structure, each side plate 602 of the fastening member body 601 has a recess 603 shaped like an arc, such as a semicircle, formed in a position facing the recess 209 of the side plate 206 of the clamping member body 701. The suspension bolt is received in the circular gap formed by the recess 209 of the clamping member body 701 and the recess 603 of the fastening member body 601. Furthermore, a conical compression coil spring 702 is inserted into the bolt 208 and interposed between the head of the bolt 208 and the base plate 205 of the clamping member body 701. The bolt 208 is screwed into the screw hole 118 of the fastening member body 601, and its relative position with respect to the fastening member body 601 is fixed. Therefore, the clamping member body 701, which is disposed therebetween, is pressed against the fastening member body 601 by the repulsive force of the coil spring 702. The coil spring 702 constitutes a spring portion that presses the clamping member body 701 against the fastening member body 601. With this structure, the suspension bolt received in the recess 209, 603 is temporarily fixed (temporarily fastened).

[0043] When attaching the suspension bolt support bracket to the suspension bolt, the worker spreads the clamping member body 701 and the fastening member body 601 apart against the repulsive force of the coil spring 702, inserts the suspension bolt between them from the side, and then releases the clamping member body 701. The repulsive force of the coil spring 702 temporarily fixes (temporarily fastens) the suspension bolt support bracket to the suspension bolt.

[0044] This embodiment can also achieve the same effects as the first embodiment.

[0045] (Third embodiment) 15 to 17 show a support bracket for a suspension bolt according to the third embodiment. The main differences between this embodiment and the first embodiment are the temporary fastening structure that presses the clamping member body against the fastening member body and the structure that prevents the clamping member body from falling off from the fastening member body.

[0046] Leaf spring portion 911 extends from one end of base plate 205 of clamping member body 901 in a state where it is bent inward at an approximately vertical angle, and the tip side of leaf spring portion 911 is further bent outward at an approximately vertical angle as leaf spring portion 912, so that the overall L-shaped leaf spring 910 is configured as a strip-shaped engaging piece. A rectangular locking hole 913 is opened slightly inward from the tip of leaf spring portion 912.

[0047] Meanwhile, a rectangular insertion opening 807 for inserting leaf spring 910 is formed in vertical plate 103 of fastening member body 801. A rectangular pressing piece 804 extends from one side end of vertical plate 103 in a state where it is bent substantially vertically, and a rectangular insertion hole 805 for inserting leaf spring portion 912 is formed at the corner between pressing piece 804 and vertical plate 103, slightly straddling both. Insertion hole 805 is provided with a locking portion 806 that protrudes toward vertical plate 103, and locking hole 913 of leaf spring portion 912 is fitted into this locking portion 806.

[0048] When temporarily assembling the clamping member body 901 to the fastening member body 801, the leaf spring portions 911 and 912 of the clamping member body 901 are inserted into the insertion opening 807 of the fastening member body 801, and while compressing the leaf spring 910, the leaf spring portion 912 is inserted into the insertion hole 805 of the pressing piece 804, and the locking hole 913 is fitted into the locking portion 806. Note that the tip of the leaf spring portion 912 is gently bent toward the leaf spring portion 911 in order to guide the insertion of the leaf spring portion 912 into the insertion hole 805 while compressing the leaf spring 910.

[0049] The leaf spring 910 is compressed with its leaf spring portion 912 locked to the locking portion 806, and the repulsive force of this locking portion presses the edge 914 of the side plate 206 of the clamping member main body 901 firmly against the vertical plate 103. The leaf spring 910 constitutes a spring portion that presses the clamping member main body 901 against the fastening member main body 801.

[0050] When attaching the suspension bolt support bracket to the suspension bolt, the worker spreads the clamping member body 901 relative to the fastening member body 801 against the elasticity of the leaf spring 910, inserts the suspension bolt between them from the side, and then releases the clamping member body 901. The repulsive force of the leaf spring 910 temporarily fixes the suspension bolt support bracket to the suspension bolt (temporarily fastens it). The side plates are tapered from the rear end to the front end, making it easy to insert the suspension bolt.

[0051] This embodiment can also achieve the same effects as the first embodiment, and furthermore, the structure for temporarily assembling the clamping member main body 901 to the fastening member main body 801 and the structure for temporarily fastening to the hanging bolt can be realized by a leaf spring that can be configured integrally with the substrate 205, thereby simplifying the structure.

[0052] The present invention is not limited to the above-described embodiments, and various modifications can be made in the implementation stage without departing from the spirit of the invention. Furthermore, the embodiments may be implemented in appropriate combinations, in which case the combined effects can be obtained. Furthermore, the above-described embodiments include various inventions, and various inventions can be extracted by combining selected elements from the disclosed elements. For example, if the problem can be solved and the desired effect can be obtained even if some elements are deleted from all elements shown in the embodiments, the configuration from which these elements are deleted can be extracted as an invention. [Explanation of symbols]

[0053] 1...Support bracket for hanging bolt, 400...Hanging bolt, 500...Channel material, 100...Fastening member, 101...Fastening member body, 102...Horizontal plate, 103...Vertical plate, 104...Press plate, 105...Bolt hole, 106...Bolt (first bolt), 107...Plate nut, 108...Screw hole, 109...Bottom plate, 110...Side plate, 111...Prevention device (first prevention device), 112...Annular portion, 113...Thread, 114...Abutment portion, 115...Rectangular hole, 116...Rectangular hole portion, 117...Rectangular Hole portion, 119...linear protrusion, 200...clamping member, 201...clamping member body, 202...hooking piece, 203...notch, 204...leaf spring, 205...base plate, 206...side plate, 207...bolt hole, 208...bolt (second bolt), 209...recess, 211...anti-fall-off device (second anti-fall-off device), 212...annular portion, 213...thread, 214...abutment portion, 215...spring plate, 216...spring plate, 217, 218...flange portion, 219...hook portion, 220...hook receiving hole, 221...hook portion.

Claims

1. In a support bracket for a suspension bolt that supports a supported object on a suspension bolt, a fastening member body for fastening the supported object; a clamping member body for clamping the suspension bolt together with the fastening member body; a spring portion that sandwiches the hanging bolt and presses the clamping member body against the fastening member body in order to temporarily fasten the hanging bolt support fitting to the hanging bolt; a bolt for fastening the clamping member body to the fastening member body by sandwiching the hanging bolt in order to fix the hanging bolt support fitting to the hanging bolt, A hole is formed in the fastening member body, and a rectangular hook piece is provided on the clamping member body to be inserted into the hole and hooked onto the edge of the hole, The spring portion is a leaf spring having a U-shaped or V-shaped cross section that is press-fitted into the gap between the edge of the hole and the hook piece.

2. In a support bracket for a suspension bolt that supports a supported object on a suspension bolt, a fastening member body for fastening the supported object; a clamping member body for clamping the suspension bolt together with the fastening member body; a spring portion that sandwiches the hanging bolt and presses the clamping member body against the fastening member body in order to temporarily fasten the hanging bolt support fitting to the hanging bolt; a bolt for fastening the clamping member body to the fastening member body by sandwiching the hanging bolt in order to fix the hanging bolt support fitting to the hanging bolt, A rectangular hook piece that is hooked onto the fastening member body is provided on the clamping member body, The hooking piece constitutes the spring portion of the support bracket for a hanging bolt.

3. In a support bracket for a suspension bolt that supports a supported object on a suspension bolt, a fastening member body for fastening the supported object; a clamping member body for clamping the suspension bolt together with the fastening member body; a spring portion that sandwiches the hanging bolt and presses the clamping member body against the fastening member body in order to temporarily fasten the hanging bolt support fitting to the hanging bolt; a bolt for fastening the clamping member body to the fastening member body by sandwiching the hanging bolt in order to fix the hanging bolt support fitting to the hanging bolt, The clamping member body is formed by bending a rectangular steel plate in the short direction to form a rectangular base plate and a pair of side plates, so that the cross section is U-shaped, and the steel plate is bent in the long direction to form a rectangular hook piece extending from the rear end of the base plate, so that the vertical section is L-shaped, A hole is drilled in the fastening member body, By pushing the hook piece into the hole, the clamping member body becomes cantilevered relative to the fastening member body, A support bracket for a hanging bolt in which the spring portion is fitted into the gap created when the hook piece is pushed into the hole, thereby pressing the clamping member body against the fastening member body and temporarily securing the support bracket for the hanging bolt to the hanging bolt.

4. 4. The support bracket for a suspension bolt according to claim 3, wherein the spring portion is a leaf spring.

5. The hole is a rectangular hole drilled near the rear end of the fastening member body, and by inserting the hook piece into the rectangular hole, the clamping member body is installed in a cantilevered manner relative to the fastening member body so as to be able to tilt freely.

2. A support bracket for a hanging bolt as described in claim 1, wherein when the leaf spring is pressed into the gap in the rectangular hole that is created when the hooking piece is inserted into the rectangular hole and pushed toward the rear end, the leaf spring rotates and urges the tip of the clamping member body against the fastening member body, using the engagement point between the rectangular hole and the hooking piece as a fulcrum, thereby temporarily securing the support bracket for the hanging bolt to the hanging bolt.

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