JPH0124417Y2 - - Google Patents

Description

[Detailed explanation of the invention] (Industrial application field) This invention is mainly used when fixing thick horizontal materials etc. to each panel beam such as metal form with fixing bolts during the construction of various formworks in the large wall construction method. This relates to a washer with a nut.

(Prior art) Conventionally, when fixing this type of thick horizontal material, etc., a fixing bolt with a receiving washer is inserted into the opening of the panel beam from the thick horizontal material side, and the shaft side of the fixing bolt is inserted into the opening of the panel beam. A nut and a flat washer were fitted from the outside of the panel beam, the bolt head inside the opening of the panel beam was held down with a spanner, and the nut on the outside of the panel beam was tightened with a spanner.

In some cases, as a means for locking a nut, a locking piece is formed by bending one side edge of a square washer with a screw hole in the center. Attachments (for example, Japanese Utility Model Application Publication No. 158965/1983) have been proposed.

(Problem that the invention aims to solve) However, the former method is not suitable for stacking in high-rises because there is a risk that the tip of the shaft of the fixing bolt may penetrate the nut and flat washer and protrude outward from the outer surface of the panel beam. When using a crane to lift the space between the scaffold and the wall surface, it is easy to get caught on the scaffolding, which is dangerous and significantly reduces work efficiency. Since two spanners are required for each step, it is extremely difficult to fix horizontal thick timbers, etc.

The latter has a low height of the nut part of the screw hole, so when fixing various thick horizontal pipes with different thicknesses such as round pipes and square pipes with a single fixing bolt, it is necessary to If the material is thin, the tip of the shaft of the fixing bolt will protrude outward from the outer surface of the panel beam.
If the horizontal end material is thick, the threaded part between the shaft tip of the fixing bolt and the screw hole becomes short, making it easier for the screw hole to come off the fixing bolt. Therefore, fixing bolts of different lengths must be replaced, which is extremely uneconomical.Furthermore, since only one locking piece is provided on one side edge of the washer, the fastener does not rotate. However, it is difficult to fix the thick side pieces, etc., and since the locking piece is formed by bending on one side edge of the washer, it is difficult to form the locking piece, and the material cost is high. It also had some drawbacks.

This idea was devised to solve the above-mentioned problems, and prevents the tip of the shaft of the fixing bolt from protruding outward from the outer surface of the panel beam, making it easier to lift the panel beam with a crane. When reusing, the tip of the fixing bolt shaft does not get caught on scaffolding, etc.
In addition to being safe and significantly improving work efficiency, it is sufficient to use one wrench to tighten only the bolt head side of the fixing bolt when tightening, making it extremely easy to fix horizontal thick materials, etc. Furthermore,
Even when using a single fixing bolt to fix various horizontally thick materials of different thicknesses, such as round pipes and square pipes, the tip of the fixing bolt's shaft protrudes outward from the outer surface of the panel beam. The high nut will not come off from the fixing bolt, making it highly economical as it can be used for any type of thick horizontal material, and the detent piece is easy to form and is made of materials. To provide a washer with a nut that costs less.

(Means for solving the problem) In order to achieve the above-mentioned purpose, this invention has a pair of long panel beams such as metal platforms installed at approximately the center in the width direction of both ends of a rectangular plate. The locking pieces that fit between the plates from the outside are slightly cut and raised inward to protrude from each other, and the tip of the shaft of the fixing bolt is fitted into the center of the inside of the plate from the inside side of the thick end. A tall nut with a long screw length that is screwed in and tightened is fixed in a T-shape.

(Function) By the above-mentioned technical means, a locking piece and a high nut are fitted from the outside between a pair of long plates on a panel beam such as a metal form, and are brought into contact with the panel beam and fixed to this high nut. Insert the tip of the bolt shaft into the wide end material inserted into the opening of the panel beam via the catch washer, and tighten the bolt head of the fixing bolt inside the opening of the panel beam with a wrench to tighten the horizontal end material. Make sure the material is fixed.

(Example) Hereinafter, an example of this invention will be described based on the drawings.

As shown in Fig. 1, the washer A with a nut of this invention has a locking piece 2 cut slightly inward (approximately 20 degrees in the figure) at the center of the width direction of both ends of a rectangular plate 1. A tall nut 3 with a long screw length is formed in the center of the inner side of the plate 1 so as to be fixed in a T-shape by welding means or the like.

Further, although the locking pieces 2 are shown in the figure as being slightly cut and raised inwardly at the widthwise central portions of both ends of the plate 1, the locking pieces 2 are not limited to this.
As shown in the figure, the ends of the plate 1 may be bent inward at right angles to have the same width at the center in the width direction and protrude from each end thereof.

(Effects of the invention) Since this invention is constructed as described above, when using it during formwork construction in the large wall construction method, the washer A with the nut of this invention is used as shown in Figures 3 and 4. Panel beam 12 such as metal form 11
The locking piece 2 and the high nut 3 are fitted between the pair of long plates 13 from the outside, and the tip of the shaft 15 of the fixing bolt 14 is inserted into the high nut 3. The panel beam 12 is fixed inside the opening 16 by fitting it into the thick horizontal end 17 of the round pipe (or square pipe) inserted into the opening 16 via the receiving washer 18 for the round pipe (or square pipe). Tighten the bolt head 19 of the bolt 14 with a wrench to fix the horizontal thick member 17. In this case, plate 1
By fixing the high nut 3 in a T-shape to the inner center of the plate, the outer end of the high nut 3 is attached to the plate 1.
Since the shaft portion 1 of the fixing bolt 14
5 can be prevented from protruding outward from the outer surface of the panel beam 12, and the shaft part 15 of the fixing bolt 14 can be safely prevented from getting caught on scaffolding etc. when suspended by a crane and used for other purposes. Work efficiency can be significantly improved.

Moreover, since the locking pieces 2 are provided inwardly protruding from the substantially central portions of both ends of the rectangular plate 1 in the width direction, each locking piece 2 can be moved to each length when abutting against the panel beam 12 from the outside. When the long plates 13 are inserted between each other and the fixing bolts 14 are tightened, each locking piece 2 of the plate 1 hits the inner surface between each of the long plates 13 of the panel beam 12 to prevent the high nut 3 from rotating. Therefore, it is sufficient to use one spanner to tighten only the bolt head 19 side of the fixing bolt 14, and
7 etc. can be fixed very easily.

In addition, by fixing a tall nut 3 with a long screw length in a T-shape to the inner center of the plate 1, 1
The fixing bolt 14 can also be used to fix various thick horizontal materials 17 with different thicknesses, such as a round pipe with a warp of 48.6 mm, a square pipe with a length and width of 60 mm, and a length and width of 50 mm. Since the tip of the shaft portion 15 of the panel beam 12 does not protrude outward from the outer surface of the panel beam 12 or the high nut 3 does not come off the fixing bolt 14, it can be used regardless of the type of the thick horizontal material 17. It is very economical and can be used for various purposes.

Furthermore, since the locking pieces 2 are slightly cut and raised inward and protruding from the widthwise center of both ends of the rectangular plate 1, the locking pieces are not attached to one side edge of the washer as in the conventional case. A pair of elongated plates 13 of the panel beam 12 of a metal home etc.
When the fixing bolts 14 are inserted between the two from the outside and tightened, the two locking pieces 2 at both ends of the plate 1 hit the inner surfaces between the long plates 13 of the panel beam 12, and the high nuts 3 This not only makes it easier to fix the horizontal thick material 17, etc., but also because the locking piece 2 is formed by cut-and-raise machining, the forming of the locking piece is much easier. It is simple and requires less material cost.

As explained above, according to this invention, the tip of the shaft of the fixing bolt does not get caught on scaffolding, etc. when hoisted by a crane and used for other purposes, making it possible to significantly improve safety and work efficiency. A single wrench is sufficient to tighten only the bolt head side of the fixing bolt, making it extremely easy to fix horizontally thick materials, etc. Furthermore, the detent piece is easy to form, and material costs are low. Various effects such as these can be obtained.

[Brief explanation of the drawing]

The drawing shows one embodiment of this invention.
The figure is a perspective view, FIG. 2 is a perspective view showing another embodiment of the rotation stopper, FIG. 3 is a perspective view showing the state of use, and FIG. 4 is a longitudinal sectional side view of the same. A...Washer with nut, 1...Plate, 2...
Stopper piece, 3... Takatsuto.

Claims (1)

[Scope of utility model registration request] At approximately the center in the width direction of both ends of the rectangular plate, detent pieces that fit from the outside between a pair of long plates of a panel beam such as a metal platform are slightly cut and raised inward and protruded from each other, and A washer with a nut, characterized in that a tall nut with a long screw length is fixed in the center of the inside of the plate in a T-shape, into which the tip of the shaft of the fixing bolt is inserted and tightened from the inside thick horizontal end side, etc. .