JP7042459B1 - Anti-vibration bolt mounting bracket for hanging bolts - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vibration retaining bolt mounting bracket for a suspension bolt which can easily attach a pair of vibration damping bolts to a suspension bolt for suspending equipment and suppress vibration. SOLUTION: A contact surface 11 which is arranged behind a suspension bolt A and abuts on the suspension bolt, and a fixing member 10 having two fixing surfaces in directions orthogonal to each other from both ends of the contact surface, face the fixing surface. Then, by tightening the two holding plates 30 having the adjacent surfaces 32 in front of the hanging bolts, the two connecting members 40 for sandwiching the anti-vibration bolts between the holding plates, and the fixing nut 21, the holding plates and the holding plates are attached to the fixing surface. The two holding plates are provided with two bolt shafts 20 for attaching the connecting member, and the adjacent surfaces of the two holding plates are arranged so as to be adjacent to each other, and each of them can swing with respect to the axial direction of the suspension bolt. In the state where the two adjacent surfaces and the contact surface are adjacent to each other, the accommodation space C for accommodating the suspension bolts is closed, and in the state where the adjacent surfaces are separated from each other, the accommodation space is opened so that the suspension bolts can be received. To. [Selection diagram] Fig. 1

Description

The present invention relates to a mounting bracket for attaching a vibration damping bolt for suppressing vibration due to an earthquake or the like to a hanging bolt that suspends equipment or the like from the ceiling surface of a structure.

Conventionally, as an example of equipment suspended from the ceiling surface, in an indoor unit of an air conditioner, when suspending bolts suspended from the ceiling are fixed to the four corners of the indoor unit and suspended, all long screws are used as vibration retaining bolts. It was used and arranged in a streak pattern between adjacent hanging bolts.
At that time, various researches and developments have been made and existed as metal fittings for attaching the anti-vibration bolt to the suspension bolt (for example, Patent Document 1 and Patent Document 2).

In Patent Document 1, the sandwiched body is fixed by penetrating the left and right ends of the sandwiched body composed of the outer sandwiched body and the inner sandwiched body, the outer sandwiched body sandwiching the hanging bolt, and the inner sandwiched body. A metal fitting consisting of a pair of connecting bolts, as a method of attaching to the hanging bolt, is disclosed in which one connecting bolt is once removed, the hanging bolt is inserted into the gap between both sandwiches, and the connecting bolt is attached again. .. As described above, in the mounting bracket of Patent Document 1, since it is sandwiched between both sandwiching bodies by tightening the connecting bolts from both sides of the hanging bolts, a strong fixing force can be obtained, but it takes time and effort to attach and detach the connecting bolts, and it is expensive. Since the work was done in the same place, there was a risk of accidentally dropping the removed connecting bolt.

Patent Document 2 includes a first base member sandwiching a suspension bolt and a base member composed of a second base portion, and a pair of connecting bolts are attached to the base member, but the first base member is one of them. Since it can be fixed by pressing it from one side of the hanging bolt by tightening the connecting bolt, the work of attaching and detaching the connecting bolt is eliminated, but because the hanging bolt is fixed while being pressed by one side of the first base member, it is fixed. Since there is a difference in the fixing force between the direction in which the hanging bolt comes out and the direction in which the connecting bolt is fastened, there has been a demand for a mounting bracket that has a more reliable and stable fixing force and is easy to mount.

Japanese Unexamined Patent Publication No. 2017-072166 Japanese Unexamined Patent Publication No. 2018-179020

The present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to easily attach a pair of anti-vibration bolts to a suspension bolt for suspending equipment without hassle, and to have a fixing force capable of reliably suppressing vibration. To provide anti-vibration bolt mounting brackets for hanging bolts.

As a means for that, claim 1 of the present invention is a mounting bracket for connecting a pair of anti-vibration bolts to a hanging bolt, which is arranged behind the hanging bolt and abuts along the axial direction of the hanging bolt. A fixing member having a contact surface and two fixing surfaces extending in directions orthogonal to each other from both ends of the contact surface, and an adjacent surface facing the fixing surface and arranged in front of a hanging bolt on the side surface 2 The holding plate, the two connecting members that sandwich the anti-vibration bolt between the holding plates, the fixing surface, the holding plate, and the connecting member, and tightening the fixing nut provided at the end thereof. The holding plate is provided with two bolt shafts for attaching the holding plate and the connecting member to the fixed surface, and the two holding plates are arranged so that the adjacent surfaces can be adjacent to each other and are respectively arranged in the axial direction of the suspension bolt. In a state where the adjacent surfaces are adjacent to each other by the swing, the accommodation space in which the two adjacent surfaces and the contact surface accommodate the suspension bolts is closed, and the adjacent surfaces are closed to each other. In the separated state, the accommodation space is opened so that the suspension bolt can be received.

2. It is characterized by urging in the direction of the spring.

According to a third aspect of the present invention, in the first or second aspect, the holding plate has an extending portion extending longer than the end portion of the fixed surface on the side surface facing the adjacent surface, and the two said portions. The holding plate is configured to be swingable by pressing the extending portions in a direction close to each other.

According to claim 1 of the present invention, the holding plate is swung with respect to the axial direction of the suspension bolt to separate the adjacent surfaces from each other, and the accommodation formed by the two adjacent surfaces and the contact surface of the fixing member. After accommodating the suspension bolts in the space, the adjacent surfaces can be closed adjacent to each other and the fixing nuts provided at the ends of the bolt shafts can be tightened to attach the suspension bolts to the suspension bolts. It can be easily installed in the state of being in a modified state.
Since the two holding plates are tightened and fixed with their respective fixing nuts, they are evenly pressurized to the hanging bolts and are reinforced with each other in the direction of coming out, so it is possible to obtain a reliable and stable fixing force. can.

According to claim 2 of the present invention, a spring material is externally inserted between the holding plate of the bolt shaft and the connecting member, and the spring material is usually urged in the direction in which the holding plate presses the suspension bolt. At times, the holding plates come into contact with the fixed surface and the adjacent surfaces to each other are closed. By swinging the holding plate back to its original position by the reaction force of the material and closing the adjacent surface, temporary fixing to the hanging bolt becomes possible and workability is improved.

According to claim 3, the holding plate has an extending portion extending longer than the end portion of the fixed surface on the side surface facing the adjacent surface, and presses the two extending portions toward each other. By making the holding plate swingable, the opening and closing of the adjacent surface of the holding plate becomes easy, and the workability of attachment to the hanging bolt is improved.

It is a perspective view which shows Embodiment 1 of this invention. It is a top view which shows Embodiment 1 of this invention. It is an exploded explanatory view of FIG. It is a perspective view which shows the connecting member of Embodiment 1 of this invention. It is a figure which shows another Example of the connecting member of Embodiment 1 of this invention. It is a figure which shows the opening and closing state of the holding plate of Embodiment 1 of this invention. It is a figure which shows another embodiment of the bolt shaft of Embodiment 1 of this invention. It is a top view which shows Embodiment 2 of this invention. It is a figure which shows the opening and closing state of the holding plate of Embodiment 2 of this invention. FIG. 1 is a diagram showing a usage state of the first embodiment of the present invention. FIG. 2 is a diagram showing a usage state of the first embodiment of the present invention.

(Embodiment 1)
Embodiment 1 of the present invention will be described with reference to FIGS. 1 to 3.
The following description of preferred embodiments is merely exemplary and is not intended to limit the invention, its applications or its uses.
From FIGS. 1 and 3, the fixing member 10 is formed of an abutting surface 11 that abuts on the suspension bolt A and two fixing surfaces 12 and 12 extending in directions orthogonal to each other from both ends of the abutting surface 11. Through holes 13 and 13 are provided in the fixing surfaces 12 and 12, hexagon bolts used as bolt shafts 20 and 20 are inserted from the back surface side of the fixing surfaces 12 and 12, and fixing nuts 21 and 21 are screwed to the tips. .. The contact surface 11 is arranged behind the suspension bolt A when it is attached to the suspension bolt A.
Reference numeral 30 is a holding plate, which is arranged so as to face the fixed surface 12, but by loosely inserting the bolt shaft 20 into the through hole 31 provided substantially in the center of the holding plate 30, the bolt shaft 20 is loosely inserted in the axial direction of the suspension bolt A, respectively. On the other hand, it can be swung. The holding plate 30 is a substantially rectangular flat plate-shaped member, and one of the left and right side surfaces is partially extended to form an adjacent surface 32. The adjacent surface 32 is arranged in front of the suspension bolt A when it is attached to the suspension bolt A.
The two holding plates 30 and 30 have adjacent surfaces 32 at different positions from each other. When the two holding plates 30 and 30 are arranged so that the adjacent surfaces 32 face each other and can be adjacent to each other, the two adjacent surfaces 32 and 32 extending alternately overlap each other vertically and the two holding plates 30 and 30 are placed on top of each other. Close the gap between them. Further, the two adjacent surfaces 32 and 32 are orthogonal to each other, and the contact surface 11 forms a substantially triangular space, and the space is used as the accommodation space C for the suspension bolt A.
The corners of the upper and lower ends of the adjacent surfaces 32 and 32 are chamfered, respectively, and a guide groove 33 of the suspension bolt A having a substantially V shape is provided at the portion where both are combined.
Reference numerals 34 and 34 are engaging pieces formed by bending the upper and lower ends to the back side, and can be engaged with the upper and lower ends of the fixed surface 12 to prevent the holding plate 30 from rotating and to increase the rigidity.

Reference numeral 40 denotes a connecting member, which is provided with a support surface 42 provided with a through hole 41 through which the bolt shaft 20 is inserted, and a bent surface 43 bent from both ends of the support surface 42 to the back side, and the bent surface 43 is provided with a bent surface 43. A semi-circular locking portion 44 that engages with the outer periphery of the anti-vibration bolt B is provided. (See Fig. 4)
The connecting member 40 is attached by inserting a through hole 41 into the bolt shaft 20, and is arranged in front of the holding plate 30.
As another form of the connecting member 40, it may be L-shaped with through holes 47 and 48 provided at the tip of the long side 45 and the short side 46, respectively.
The bolt shaft 20 is inserted through the through hole 47 on the long side 45 to be rotatably connected, and the anti-vibration bolt B is inserted through the through hole 48 on the short side 46 and sandwiched between the nuts 49 and 49 on both sides. Can be installed with. (See Fig. 5)

A coil-shaped compression spring material is used as the spring material to be extrapolated to the bolt shaft 20 between the holding plate 30 and the connecting member 40, and the holding plate 30 normally abuts on the fixed surface 12 due to the urging of the compression coil spring 22. Then, the adjacent surfaces 32 and 32 are closed, and the holding plate 30 is swung to open the adjacent surfaces 32 and 32, and the suspension bolt A is accommodated in the accommodation space C. The holding plates 30 and 30 swing back to their original positions due to the reaction force of the compression coil spring 22, and the adjacent surfaces 32 and 32 can be closed to temporarily fix the suspension bolt A. (See FIG. 6) The compression coil spring 22 is urged in the direction in which the holding plate 30 presses the suspension bolt A when it is attached to the suspension bolt A.
Here, the spring material is a compression coil spring, but a leaf spring may also be used. (Not shown)

As another form of the bolt shaft 20, a hexagon bolt may be used to arrange its head on the connecting member 40 and the fixing nut 21 on the back surface side of the fixing surface 12 of the fixing member 10. (See FIG. 7) In that case, it is desirable that the fixing nut 21 is fixed to the fixing surface 12 by welding or the like. Further, instead of the fixing nut 21, a screw hole may be provided on the fixing surface 12. (Not shown)

(Embodiment 2)
Next, Embodiment 2 of the present invention will be described with reference to FIGS. 8 and 9.
In the second embodiment, only the parts different from the first embodiment will be described, and the description of the common parts will be omitted. The second embodiment differs from the first embodiment in the form of the holding plate 30.
By forming the extension portions 35, 35 extending longer than the end portion of the fixed surface 12 on the side surface facing the adjacent surface 32 of the holding plate 30, the two extension portions 35, 35 are pressed in a direction closer to each other. By doing so, the adjacent surfaces 32, 32 can swing in the opening direction with the end edge of the fixed surface 12 as a fulcrum, and the suspension bolt A can be easily accommodated in the accommodation space C.

Subsequently, a usage example of the first embodiment will be described.
FIG. 10 is an enlarged view showing the mounting state of the anti-vibration bolt when the indoor unit of the air conditioner is suspended from the ceiling at four points by hanging bolts, and FIG. 11 is an enlarged view showing the mounting state of the mounting bracket of the present invention.
The mounting bracket of the present invention can be attached to the upper and lower ends of the four hanging bolts A that suspend the indoor unit D of the air conditioner, and the anti-vibration bolts B can be attached so as to cross each other in a brace shape.
The guide grooves 33 provided on the adjacent surfaces 32 and 32 of both holding plates 30 and 30 are pressed against the suspension bolt A on the indoor unit D side to swing the adjacent surfaces 32 and 32 in the opening direction, and the adjacent surfaces 32 and 32 are swung in the opening direction from the gap. The suspension bolt A is accommodated in the accommodation space C.
In the second embodiment, by pressing the extending portions 35, 35 in the direction of approaching each other, the adjacent surfaces 32, 32 swing in the opening direction with the end edge of the fixed surface 12 as a fulcrum, and the suspension bolt A is swayed from the gap. Is accommodated in the accommodation space C.
The reaction force of the compression coil spring 22 mounted on the bolt shaft 20 causes the holding plates 30 and 30 to swing back to their original positions to close the adjacent surfaces 32 and 32, and the mounting bracket is temporarily fixed to the suspension bolt A.
Similarly, the mounting bracket of the present invention is attached to the ceiling side of the suspension bolt A and another suspension bolt.
Next, an appropriate position of the anti-vibration bolt B is arranged between the holding plate 30 and the connecting member 40, and the fixing nut 21 is tightened and fixed in a state of being locked to the locking portion 44 of the connecting member 40.
By tightening the fixing nut 21, the connecting member 40 can fix the holding plate 30 via the steady rest bolt B at the same time as the suspension bolt A.
The other anti-vibration bolt B is also connected to the connecting member 40 in the same manner, and the anti-vibration bolt is fixed to another mounting bracket in the same manner.

10 Fixing member 11 Contact surface 12 Fixed surface 13 Through hole 20 Bolt shaft 21 Fixing nut 22 Compression coil spring 30 Holding plate 31 Through hole 32 Adjacent surface 33 Guide groove 34 Engagement piece 35 Extension 40 Connecting member 41 Through hole 42 Support Surface 43 Bent surface 44 Locking part A Suspension bolt B Anti-vibration bolt C Accommodation space D Indoor unit

Claims (3)

A mounting bracket for connecting a pair of anti-vibration bolts to a hanging bolt.
A fixing member arranged behind the suspension bolt and having a contact surface that abuts along the axial direction of the suspension bolt and two fixing surfaces that extend in directions orthogonal to each other from both ends of the contact surface.
Two holding plates facing the fixing surface and having an adjacent surface arranged in front of the hanging bolt on the side surface, and
Two connecting members that sandwich the anti-vibration bolt between the holding plate and
It is provided with two bolt shafts that penetrate the fixing surface, the holding plate and the connecting member, and attach the holding plate and the connecting member to the fixing surface by tightening a fixing nut provided at the end.
In the two holding plates, the adjacent surfaces are arranged so as to be adjacent to each other, and each of the two holding plates can swing in the axial direction of the suspension bolt. The accommodation space in which the two adjacent surfaces and the contact surface accommodate the suspension bolts is closed, and when the adjacent surfaces are separated from each other, the accommodation space is opened so that the suspension bolts can be received. Anti-vibration bolt mounting bracket for hanging bolts. The bolt shaft is characterized in that a spring material is extrapolated between the holding plate and the connecting member, and the spring material is urged in a direction in which the holding plate presses a hanging bolt. Anti-vibration bolt mounting bracket for suspension bolts according to 1. The holding plate has an extending portion extending longer than the end portion of the fixed surface on the side surface facing the adjacent surface, and the holding plate is pressed in a direction in which the two extending portions are brought closer to each other. The anti-vibration bolt mounting bracket for a hanging bolt according to claim 1 or 2, which is configured to be swingable.

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