JPH0610611U - Fasteners for lightweight buildings - Google Patents

Abstract

(57) [Summary] [Purpose] To enable efficient installation of asbestos slate corrugated boards in lightweight buildings. [Structure] A cap A made of a soft elastic material composed of a peripheral wall 16 and a taper portion 17, and a hook bolt 6 for connecting building materials.
Circular ring 13 with a plurality of pawls 14 that engage with male threads such as
It consists of a ring-shaped nut B provided inside.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a fastener for a lightweight building, which is composed of a lightweight steel frame and an asbestos slate corrugated sheet or a metal roofing material such as a square corrugated sheet.

[0002]

[Prior art]

 FIG. 6 shows a part of a conventional lightweight building. Reference numeral 1 is an H-shaped steel as a pillar of the lightweight building, and 2 is a C-shaped channel material connecting the H-shaped steel 1. The bracket 3 is fixed to the middle portion of the H-shaped steel 1 by means such as welding, and the channel member 2 is fixed thereto by the bolt 4.

Reference numeral 5 denotes a corrugated plate made of asbestos slate that constitutes a side wall of a building. A hook bolt 6 is inserted into an insertion hole provided in the corrugated plate 5 to engage a hook at an inner end thereof with the channel member 2. . Then, as shown in FIG. 7, the seat plate 7 made of a soft elastic material and the curved washer 9 are inserted into the bolt 6 protruding to the outside of the corrugated plate 5, and the nut 10 is screwed in and tightened.

[0004]

[Problems to be solved by the device]

 In the case of the conventional structure described above, it is necessary to attach the seat plate 7 and the washer 9 to the bolt 6 and tighten the nut 10. However, the number of places where such hook bolts are used is long, so the construction period is long. There was a problem of becoming.

An object of the present invention is to provide a fixture which can eliminate the troublesome screwing operation like a conventional nut in order to solve the above problems.

[0006]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the present invention comprises a ring-shaped nut having a plurality of claws that engage with male threads of a bolt inside, and a cap made of a soft elastic material with the ring-shaped nut fitted inside. Each claw of the ring-shaped nut is tilted toward the outer end of the bolt so that when the bolt is engaged with the bolt, a non-return action is produced. The outer wall of the insertion hole is in close contact with the outer periphery of the insertion hole and is water-tight.

[0007]

[Action]

 The present invention has the above-described structure. For example, as in the conventional example shown in FIG. 6, the hook bolt 6 is engaged with the channel member 2, and the bolt 6 is inserted into the through hole of the corrugated plate 5 so that the corrugated plate 5 is placed outside. When the cap of the present invention and the nut with a claw fitted in the cap are inserted into the protruding bolt 6, each claw of the nut is deeply fitted into the insertion hole of the cap while being in contact with the male screw of the bolt, and the peripheral wall of the cap is waved. Stick to the outer surface of the plate.

In this state, the cap and the nut are prevented from coming off by engaging the male screw of the claw. Further, when it is desired to remove the nut, it can be removed in the same manner as the conventional nut by rotating the nut together with the cap in the screw return direction.

[0009]

【Example】

 In the embodiment shown in FIGS. 1 to 5, A is a cap made of soft synthetic resin, B is a spring type ring-shaped nut, and a stainless steel plate or the like is used. As shown in FIGS. 1 and 3, the nut B has a plurality of pawls 14 integrally formed inside the circular ring 13, and a skirt 15 is integrally formed around the entire circumference of the ring 13. .

Each of the pawls 14 is inclined toward the opposite side of the skirt 15, and the interval between the facing pawls 14 is set so as to engage with the thread groove of the mating bolt. The cap A is composed of a peripheral wall 16 and a tapered portion 17, and on the inner surface of the peripheral wall 16, as shown in FIGS. 1 and 2, a pair of opposed ridges 19 are formed over a range of 135 °. There is.

A bolt insertion hole 20 is formed in the center of the tapered portion 17 of the cap A, and its peripheral edge becomes a thin portion 21 so as to be in close contact with the outer periphery of the mating bolt and maintain watertightness. . An uneven surface 22 is formed on the outer circumference of the peripheral wall 16.

The skirt 15 on the outer circumference of the nut B is fitted on the inner surface of the peripheral wall 16 of the cap A as shown in FIG. In the case of the above embodiment, the cap A accommodating the nut B is directed with the peripheral wall 16 thereof facing the corrugated plate 5 as shown in FIG. 4, and the bolt 6 protruding from the corrugated plate 5 is pressed so as to be inserted into the insertion hole 20.

At this time, each claw 14 moves toward the corrugated plate 5 while contacting the male screw of the bolt 6, and the peripheral wall 16 of the cap A deforms and comes into close contact with the corrugated plate 5.

In the above state, even if a force is applied to the nut B in the removing direction, each claw 14 engages with the male screw of the bolt 5 to prevent the nut from coming off, and the thin portion 21 adheres to the bolt 6 and the peripheral wall 16 Adheres to the corrugated sheet 5 to keep it watertight.

FIG. 5 shows a case where a roof member 25 such as a metal corrugated plate is attached, and in this case, a frame in which a metal strip is bent in a square wave shape on an H-shaped steel 26 which is a base of the roof. The material 27 is fixed with bolts and nuts 29, and the bolt 30 is fixed to the upper end of the frame material 27 by means such as welding.

Then, the roof member 25 is placed on the frame member 27, and the bolts 30 are inserted into the insertion holes. The bolts 30 protruding on the roof member 25 are capped with ring nuts. Wear A.

To remove the nut B and the cap A that are connected to the bolt 6 or the bolt 29 as described above, the cap A may be pinched and rotated together with the nut B in the loosening direction. As a result, each claw 14 rotates along with the male screw of the bolt 6 or the bolt 29, and can be easily removed by the same action as the conventional screw unscrew.

[0018]

【effect】

 In this invention, since the inner claw of the circular ring of the ring-shaped nut substitutes for the male screw of the nut as described above, the nut and the cap can be fixed to the bolt only by pushing the nut in the axial direction when connecting. Therefore, the time required for tightening is remarkably shortened as compared with the conventional connection by the nut.

When it is necessary to remove the nut, it can be removed in the same manner as a conventional nut, which is convenient.

[Brief description of drawings]

FIG. 1 is a vertical sectional front view of an embodiment.

FIG. 2 is a bottom view of the above cap.

FIG. 3 is a bottom view of the ring nut of the above.

FIG. 4 is a vertical side view of the tightened state.

FIG. 5 is a sectional view of another embodiment in a tightened state.

FIG. 6 is a side view of a conventional example.

FIG. 7 is an enlarged cross-sectional view of the main part of the same as above.

[Explanation of symbols]

 A cap B ring nut 6 hook bolt 13 circular ring 14 claw 16 peripheral wall 17 taper portion 20 bolt insertion hole

Claims (1)

[Scope of utility model registration request] 1. A ring-shaped nut having a plurality of claws that engage with male threads of a bolt inside, and a cap made of a soft elastic material in which the ring-shaped nuts are fitted inside, and each claw of the ring-shaped nut is Inclining toward the outer end of the bolt so that a non-return action occurs when engaged with the bolt,
The cap is composed of a bolt insertion hole that is in close contact with the bolt to maintain watertightness, and an elastically deformable peripheral wall that is in close contact with the outer periphery of the insertion hole of the tightening symmetrical object to maintain watertightness. Fasteners.