JP2023040448A5 - - Google Patents

Description

The present invention relates to a wire rope mounting bracket for steel pipes that is suitable for attaching wire ropes to steel pipes to prevent the swinging of electronic display boards, lighting fixtures, and other equipment that are suspended from the structure of a station building, for example.

Renovations to station building electronic display boards and lighting fixtures are carried out within the limited time between the last train and the first train, so there is a need for efficiency in the work of preventing the equipment from swinging. However, conventional mounting brackets required a lot of work during the installation process.

The mounting bracket described as the prior art in Patent Document 1 is attached to a hanging bolt, and is structured so that the hanging bolt is clamped between a pair of fixing brackets, and both ends of the fixing bracket are fixed with a pair of fixing bolts. Then, the fixing bolts that fix the fixing brackets are each connected to a fully threaded bolt for vibration prevention.

Meanwhile, the same fittings as those in Patent Document 1 are also used for mounting metal fittings for steel pipes used in station buildings and the like. That is, they are equipped with a pair of fixing metal fittings that clamp the steel pipe and a pair of fixing bolts that fix both ends of the fixing metal fittings. However, mounting metal fittings for steel pipes used in station buildings and the like use wire ropes or turnbuckles, rather than fully threaded bolts, as anti-sway members to prevent the equipment from swinging.

Patent No. 6539110

Most of the work to prevent vibration of equipment used in station buildings and other facilities is done at high altitudes. However, after attaching the fixing brackets to the steel pipes, workers cannot let go until the fixing bolts are completely tightened, making it a dangerous job that could cause the mounting brackets to fall.

Furthermore, since wire ropes and turnbuckles are connected to the fixing bolts that secure the fixing brackets, it is necessary to ensure an appropriate gap at the connection points between these fixing brackets. However, with conventional fixing bolts, the gap at the connection points must be adjusted by adjusting the tightening of two nuts, and this process also takes a lot of time and effort.

The present invention was created to solve the problems of the past, and aims to provide a wire rope mounting bracket for steel pipes that prevents the bracket from falling during work, ensures proper spacing between the connection parts that connect the wire rope and turnbuckles, and increases the efficiency of work to prevent equipment from swinging.

The first means of the present invention to achieve the above-mentioned objective is a steel pipe wire rope mounting bracket that clamps the side of the steel pipe material Q with the fixing bracket 1 and connects the wire P to the mounting bracket that fixes both longitudinal ends of the fixing bracket 1 with fixing bolts 6, and is configured such that a spring member is attached to one of the fixing bolts 6, and the fixing bracket 1 that clamps the steel pipe material Q closes by the elastic force of the spring member.

The spring member of the second means is a coil spring 8, which is attached between the fixing nut 7 screwed onto the fixing bolt 6 and the fixing bracket 1, and is configured so that the pressure force of the coil spring 8 keeps the relative rotational position of the fixing bracket 1 constant.

The spring member of the third means is a leaf spring.

The fourth means is that when the steel pipe Q is clamped by the fixing bracket 1, a cylindrical body forms a gap for connecting the wire P to the mounting bracket.

In the fifth means, the fixing bracket 1 comprises an abutment portion 2 that abuts against the steel pipe Q, and a connecting portion 3 formed at both ends of the abutment portion 2 and connecting the fixing bolt 6, the fixing bolt 6 is inserted into a bolt insertion hole 4 formed in the connecting portion 3, and the bolt insertion hole 4 has a fitting recess 4A that fits the square root portion 6A formed on the head of the fixing bolt 6.

The fixing bracket 1 of the sixth means comprises a contact portion 2 that contacts the steel pipe material Q, and connecting portions 3 formed at both ends of the contact portion 2 and that connect the fixing bolt 6, the fixing bolt 6 being inserted into a bolt insertion hole 4 formed in the connecting portion 3, the bolt insertion hole 4 being provided with a burring 5 that protrudes toward the opposing fixing bracket 1, and when the steel pipe material Q is clamped with the fixing bracket 1, the burring 5 forms a gap for connecting the wire P to the mounting bracket .

The seventh means is a steel pipe wire rope mounting bracket in which a pair of fixing brackets 1 of the same shape clamp the side of the steel pipe material Q.

This invention prevents the mounting brackets from falling during work, ensures proper spacing between the connecting parts for connecting wire ropes and turnbuckles, and increases the efficiency of work to prevent equipment from vibrating.

FIG. 1 is a perspective view showing an embodiment of the present invention. FIG. 1 is a plan view showing an embodiment of the present invention. FIG. 2 is an exploded perspective view showing a main part of the present invention. FIG. 2 is a plan sectional view of the fixing bracket of the present invention. 1A to 1D are explanatory diagrams showing a fixing procedure of the present invention. 1A and 1B are perspective views of the essential parts showing various usage states of the present invention.

The mounting bracket of the present invention is used to attach wires P and turnbuckles to steel pipe material Q, which are used to prevent the vibration of electronic display boards and lighting fixtures that are hung from the structure of a station building, for example (see Figures 6 (a) and (b)).

The main components of the present invention include a fixing bracket 1, a fixing bolt 6, a fixing nut 7, and a coil spring 8 (see Figure 1).

The fixing bracket 1 is a band-shaped member that clamps and fixes the side of the steel pipe Q, and is formed of an abutment portion 2 that clamps the steel pipe Q, and a connecting portion 3 that extends to both ends of the abutment portion 2 (see Figure 2). The connecting portions 3 are then fixed to each other with a fixing bolt 6, and a wire P for preventing vibration is connected to a burring 5 through which the fixing bolt 6 is inserted. The fixing bracket 1 shown in the figure uses a pair of fittings of the same shape, but these may also be molded as a single unit.

A spring member is attached to one of the fixing bolts 6, and the pair of fixing brackets 1 sandwiching the steel pipe material Q is closed by the elastic force of the spring member (see Fig. 5 (a) and (b)). The spring member shown in the figure is a coil spring 8. The coil spring 8 is attached between the fixing nut 7 screwed to the fixing bolt 6 and the fixing bracket 1, and the pressing force of the coil spring 8 keeps the relative rotational positions of the fixing brackets 1 constant. In the illustrated example, a nut with a washer is used for the fixing nut 7 (see Figs. 2 and 3). Also, the spring member does not necessarily have to be a coil spring, and it is sufficient if it has a biasing force that brings the fixing brackets 1 closer to each other, and for example, a leaf spring material is also possible.

The illustrated fixing bolt 6 is a square root fixing bolt 6, and the bolt insertion hole 4 forms a fitting recess 4A into which the square root portion 6A of the fixing bolt 6 fits (see FIG. 3). Then, the fixing bolt 6 is inserted into each bolt insertion hole 4 and fixed by screwing the fixing nut 7 (see FIG. 2). The fixing bolt 6 inserted into the bolt insertion hole 4 is fixed by the fitting recess 4A, so it does not rotate when the fixing nut 7 is screwed. Although not described in the embodiment, when using a hexagonal bolt, a protrusion is provided on the fixing bracket 1 so that an embossment or the like hits at least one side of the bolt head to the extent that the fixing bolt 6 does not rotate, and this can be changed to a fitting recess 4A.

Furthermore, the bolt insertion holes 4 are provided with burrings 5 that protrude toward the opposing fixing bracket 1 (see Figure 2). These burrings 5 are configured so that they come into contact with each other when the steel pipe Q is clamped between the fixing brackets 1. As a result, the abutting burrings 5 ensure an appropriate gap when connecting the wire P or turnbuckle to the fixing bolt 6 (see Figure 5 (d)). It also prevents the wire P from directly hitting the threaded portion of the fixing bolt 6, preventing damage to the wire P. The gap between the fixing brackets 1 only needs to be wide enough to allow the wire P to pass through without difficulty, so if the height of the burrings 5 is higher than the width of the wire P, it is sufficient for the burrings 5 to be on only one side of the fixing bracket 1.

The steel pipe Q used to secure the mounting bracket of the present invention is a steel pipe with a round cross section or a square steel pipe with a square cross section (see Figures 6 (a) and (b)). Therefore, the shape of the contact portion 2 of the fixing bracket 1 is formed to match the shape of each steel pipe Q.

Next, the procedure for using the mounting bracket of the present invention is shown in Figure 5. First, as shown in Figure 5 (a), the mounting brackets 1 are temporarily assembled using only the fixing bolts 6 equipped with coil springs 8, and one of the mounting brackets 1 is abutted against the side of the steel pipe material Q.

Next, as shown in (b) of the same figure, the other fixing bracket 1 is rotated to abut against the side of the steel pipe Q. At this time, the elastic force of the coil springs 8 causes each fixing bracket 1 to close together, so that each fixing bracket 1 is temporarily fixed to the side of the steel pipe Q and will not fall even if the worker lets go of it. Note that if one of the fixing bolts 6 is not present and the distance between the connecting parts 3 is larger than the steel pipe Q, it is also possible to insert it into the steel pipe Q from the side in the (b) state.

From this temporary fastening state, the remaining fixing bolts 6 are connected as shown in FIG. (c) and the two fixing nuts 7 are tightened to fix the fixing bracket 1 to the steel pipe material Q.

Finally, as shown in FIG. 4(d), the wire P for preventing vibration is connected to the fixture 1. At this time, the gap between the abutting burrings 5 makes it easy to connect the wire P. Also, instead of the burrings 5, a cylindrical body or a protrusion may be used to form the gap.

The embodiments of the present invention are not limited to the illustrated examples, and design changes such as changes to each component part and the type of steel pipe material Q to be fixed are free to the extent that they do not change the gist of the present invention.

P Wire Q Steel pipe material 1 Fixing bracket 2 Contact portion 3 Connection portion 4 Bolt insertion hole 4A Fitting recess 5 Burring 6 Fixing bolt 7 Fixing nut 8 Coil spring

Claims (7)

This is a wire rope mounting bracket for steel pipes, which clamps the side of a steel pipe material with a fixing bracket and connects a wire to a mounting bracket that fixes both longitudinal ends of the fixing bracket with fixing bolts, characterized in that a spring member is attached to one of the fixing bolts and the fixing bracket clamping the steel pipe material closes by the elastic force of the spring member. The steel pipe wire rope mounting bracket according to claim 1, in which the spring member is a coil spring that is attached between the fixing nut that is screwed onto the fixing bolt and the fixing bracket, and the pressing force of the coil spring is used to keep the relative rotational positions of the fixing brackets constant. A steel pipe wire rope mounting bracket according to claim 1, in which the spring member is a leaf spring. A steel pipe wire rope mounting bracket according to any one of claims 1 to 3, in which a cylindrical body forms a gap for connecting the wire to the mounting bracket when the steel pipe material is clamped by the fixing bracket. 5. A steel pipe wire rope mounting bracket as claimed in any one of claims 1 to 4, wherein the fixing bracket comprises an abutment portion that abuts against the steel pipe material and connecting portions formed at both ends of the abutment portion and that connect the fixing bolt, the fixing bolt being inserted into a bolt insertion hole formed in the connecting portion, and the bolt insertion hole having a fitting recess into which a square root portion formed in a head of the fixing bolt is fitted. 4. A steel pipe wire rope mounting bracket as claimed in any one of claims 1 to 3, wherein the fixing bracket comprises an abutment portion that abuts against the steel pipe material and connecting portions formed at both ends of the abutment portion and that connect the fixing bolt, the fixing bolt being inserted into a bolt insertion hole formed in the connecting portion, the bolt insertion hole being provided with a burring that protrudes toward the opposing fixing bracket, and when the steel pipe material is clamped with the fixing bracket, the burring forms a gap for connecting the wire to the mounting bracket . 7. A steel pipe wire rope mounting bracket according to claim 1, wherein a pair of said fixing brackets having the same shape clamp the side of the steel pipe material .