JPH0745712Y2 - Rotational movement device for positioning nut for hanging bolt - Google Patents

Description

[Detailed Description of the Invention] "Industrial field of application" The present invention is designed so that at a construction site, the nuts are previously screwed to the hanging bolts for supporting the ceiling members and the like so that the hook tightening position is determined by the nuts. The present invention relates to a rotary movement device for a positioning nut for a hanging bolt that is moved in and out.

"Conventional technology" Conventionally, at a construction site, ceiling installation work and support work for erection members that hold pipes, wiring, etc. are performed by fixing a hook to a hanging bolt fixed from the ceiling part with a nut, and connecting the hook to a channel member, etc. Was installed horizontally to proceed with work processes such as ceiling installation, piping, and wiring. Further, in these works, it is necessary to determine the tightening position of the hook by the nut in order to fix the ceiling installation work, the piping, the wiring and the like in a horizontal state. In this method, a nut is previously screwed into a suspension bolt, a hook is screwed in, and then the bolt is further tightened and fixed.

This conventional technique will be described in detail with reference to FIGS. 3 and 4. FIG. 3 is a side view showing a state in which a conventional hanging bolt is used at a construction site, and FIG. 4 is an enlarged side view when a hook is positioned on a hanging bolt with a nut and tightened.

Anchors on the slab 21 on the attic of each building and on each floor
A suspension bolt 23 is suspended from 22 and fixed. When tightening the hook 25 for holding the channel member 24, piping, wiring, etc. on the hanging bolt 23 with the nuts 26a, 26b, in order to horizontally support the held object, the position of the hook 25, that is, the hook 25 is It is necessary to determine the positions of the nuts 26a, 26b to be tightened and screw the nuts into the vicinity of the positions in advance.

In the present situation, when the hook 25 is screwed into and tightened by the nuts 26a and 26b, it depends on human hands.

"Problems to be solved by the invention" The operation of manually inserting the two nuts 26a and 26b with the hook 25 sandwiched between each of the above-mentioned hanging bolts 23 and tightening the nuts 26a and 26b to a predetermined position is carried out. When the number of 23 is a high-rise building, it can reach from thousands to tens of thousands or more, so it requires a considerable amount of personnel and enormous work time and cost.
It was also a factor that increased the burden of construction costs.

"Means to solve the problem" The present invention is to solve the above problems,
It is configured as follows.

A motor is built into the main body of the device, a conical friction plate with a protective cover is fixed to the tip of the rotary shaft of this motor, and a scale graduation with a scale is installed horizontally on the side wall of the device main body. One end of a stop plate having a pit groove is slidably provided.

"Operation" When using, when screwing the upper nut into the position of the top of the hook that is fixed to the hanging bolt, first determine the distance from the ceiling to the hanging length and the approximate nut position, and then move the scale up. Position and fix the stop plate that has been slidably moved, screw the nut into the end of the hanging bolt, and then drive the motor in the main body of the device to bring the nut into contact with the surface of the conical friction disc and stop the end of the hanging bolt. When the nut is rotated toward the pit groove of the plate, the nut is rotated by the conical friction disk, causing the suspension bolt to move downward, the tip of the bolt abuts the pit groove, and the nut that rotates and moves to the hand side is the conical friction disk. The rotation of the nut stops at the time when the nut is removed, and the length from the position of the pit groove to the position of the nut corresponds to the hanging length.

[Embodiment] An embodiment of a rotary moving device for a positioning bolt for a hanging bolt according to the present invention will be described with reference to the drawings.

FIG. 1 is a plan view of a rotary moving device for a positioning nut for a suspension bolt according to the present invention, and FIG. 2 is a side view showing a usage state.

In the figure, reference numeral 1 is a main body of a device in which a motor is incorporated. A rotary shaft 2 of the motor is vertically projected from the main body 1 of the motor, and a conical shape is formed at the tip of the rotary shaft 2. The conical friction disc 4 to which 3 is attached is fixed.

A graduation scale 5 with a scale is horizontally formed from a part of the side wall of the apparatus main body 1, and a lower end of a stop plate 7 having a pit groove 6 formed of a long groove on a side surface thereof is slidably screwed. Fix by 8. And above the conical friction disc 4,
Safety is ensured by covering a plurality of arc-shaped protective covers 9.

The device body 1 is arranged so that the rotation direction can be changed to the left or right as required. For example, the wiring of the three-phase motor is 2
If the book is made into a book and the initial movement is pushed by hand in the required direction, the direction of rotation is induced and it is electrically rotated. That is, if the rotation direction of the conical friction disc 4 is changed, the nuts 26a and 26b that rotate in contact with the conical friction disc 4 can be moved leftward or rightward with respect to the hanging bolt 23. The same reference numerals as those of the above-mentioned conventional art indicate the same parts.

When the motor in the device body 1 is driven by operating a switch (not shown), and the rotating conical friction plate 4 is brought into contact with the nut 26a (26b) screwed into the end of the hanging bolt 23, the rotational direction of the conical friction plate 4 is changed. Nut 26a (26
b) can be moved by a distance d corresponding to the suspension length while rotating from the tip of the suspension bolt 23. This distance is determined by positioning the position of the stop plate 7 so that the tip of the hanging bolt 23 fits into the pit groove 6 and the nut 26a (26b).
Is secured when the conical friction disc 4 is disengaged. Pit groove 7
With a long groove, the end of the hanging bolt 23 can be attached to the stop plate 7 without shaking.

Hook 25 is the upper nut that is positioned in the hanging length
Since it is screwed between 26a and the nut 26b at the lower end,
First, the nut 26a is screwed into the suspension bolt 23 and the hook 25 is inserted. Next, attach the lower nut 26b to the conical friction disc 4
If the lower end of the hanging bolt 23 is abutted against the stop plate 7 and the conical friction disc 4 is rotated in the predetermined direction by the device body 1,
The nut 26b can move while ensuring the suspension distance d.

The tightening means of the hook 25 has been described in the state where the suspension bolt 23 is first fixed to the anchor 22.
If the work is performed on the work table on the floor without fixing 23 to the anchor 22, work efficiency is further improved. In this case, first, the end of the hanging bolt 23 on the side of the nut 26b is directed toward the stop plate 7, and first, the nut 26b is screwed to the approximate position by the conical friction disc 4, and the hanging bolt 23 is reversed to insert the hook. After that, the nut 26a may be screwed and rotated by the above-described operation to secure the hanging distance d. In this case, with respect to the nut 26a, the nut 26b is screwed into a position where the hook 25 is loosely tightened, and a number of bolts are each fixedly suspended to the anchor 22 of the ceiling, and some position adjustment is possible. When tightened, ensure the horizontal position of the hook 25.

The drive power supply for the motor in the apparatus body 1 may be a DC power supply, but may also be a battery or a rechargeable drive power supply. In this case, it becomes convenient to carry, the work range is widened, and the work efficiency is further improved.

[Effect] As described above, the present invention has a motor built in the main body 1 of the device, and the conical friction disc 4 having the protective cover 9 is fixed to the tip of the rotary shaft 2 of the motor. A scale handle 5 having scales is provided horizontally on the side wall, and one end of a stop plate 7 having a pit groove 6 is slidably provided on the scale handle 5.

Therefore, when the nuts 26a and 26b are screwed in using the device of the present invention, the nuts 26a (26b) are simply brought into contact with the conical friction disc 4 which holds the suspension bolt 23 in its hand and rotates. Since the nut 26a (26b) can be moved by the distance d positioned by the stop plate 7 by rotating the screw of the suspension bolt 23 as a guide, it is easy and efficient even if the number of suspension bolts is tens of thousands. Since the nut can be screwed in to a predetermined position, the laborious work that has conventionally required manual labor can be mechanically significantly reduced, and the cost can be reduced.

In addition, the tip of the hanging bolt along the inclined surface of the conical friction disk contacts the pit groove of the positioned stop plate during work, so the tip of the hanging bolt is pressed by the pit groove and does not shake and the nut is safe. It can be brought into contact with a conical friction disc, and work safety is maintained with a protective cover.

[Brief description of drawings]

FIG. 1 is a plan view of a rotary moving device for a positioning nut for a suspension bolt according to the present invention, FIG. 2 is a side view showing a usage state, and FIG. 3 shows a state in which a conventional suspension bolt is used at a construction site. FIG. 4 is an enlarged side view showing a case where a hook is positioned on a suspension bolt by a nut and tightened. 1 ... Device body, 2 ... Rotation axis, 3 ... Rubber cloth, 4 ...
… Conical friction disc, 5 …… scale pattern, 6 …… pit groove, 7 ……
Stop plate, 8 ... Screw, 9 ... Protective cover, 23 ... Hanging bolt, 25 ... Hook, 26a, 26b ... Nut,

Claims (1)

[Scope of utility model registration request] 1. A motor is built in the main body of the apparatus, a conical friction disc having a protective cover is fixed to the tip of the rotary shaft of the motor, and a scale graduation with a scale is horizontally provided on the side wall of the main body of the apparatus. A positioning nut turning / moving device for a hanging bolt, wherein one end of a stop plate having a pit groove formed on the scale is slidably provided.