JP2001317519A - Rag bolt - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an easily manufacturable rag bolt structure by reducing the number of parts while securing a function as a rag bolt. SOLUTION: The rag bolt is provided with a shank-shaped bolt part 10 and a plate body 20 connected to the tip side of the bolt part 10 by caulking rotationally to the bolt part, and the plate part 20 is formed into a rag plate having claw parts 22 directly formed by pressing. A projection part 15 is formed in the center on the tip end side of the bolt part 10, and in the caulking work, the bolt part 10 and the plate body 20 are connected together by applying plastic deformation to the projection part 15.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a perforated bolt used for gripping and fixing a cable having an optical fiber bundle or the like therein, and more particularly to a perforated bolt having a structure easy to manufacture. Regarding the structure.

[0002]

2. Description of the Related Art Conventionally, when a cable is arranged in a cable connection closure, the cable is gripped and fixed for positioning. That is, as shown in FIG. 6, for example, a U-shaped gripping tool 60 erected in the closure is attached to the wall surfaces 61 on both sides thereof.
Attach the shaft 71 of the Dome bolt 70 to each
By rotating 1, the position of the demon face plate 72 at the tip of the shaft is adjusted, and the cable 80 is sandwiched between the devil plates 72, 72 on both sides at an appropriate position and gripped.

[0003] As shown in FIG. 7, the perforated bolt 70 is connected by a caulking process so that the shaft 71 can rotate with respect to the perforated plate 72. The plate body 72b is connected to the base 71, and a depressed surface 72a fixed to the surface of the plate body 72b.
That is, a hole (not shown) formed in the plate 72b
A plate 72b is rotatably connected to the shaft 71 by inserting an annular wall (not shown) formed on the end face of the shaft 71 and squeezing the annular wall outward to deform it. Let me. Then, a demon face 72a is mounted on the plate 72b so as to cover the caulking portion. A plurality of claw portions 73 are formed on the demon surface 72a by partially erecting the surface by press working. Due to the presence of the claw portion 73, a shift is prevented when the above-described cable 80 is gripped, and the cable 80 can be securely fixed.

[0004]

However, the above-mentioned perforated bolt 70 has a shaft portion 71, a plate 72b, and a perforated surface 72.
a is a component, and the perforated surface 72a is fixed to the plate 72b connected to the shaft portion 71 by spot welding at a plurality of locations, so that the alignment between the plate 72b and the perforated surface 72a can be improved. There is a problem that the welding operation is complicated, and the production operation is troublesome.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to provide a structure of an onset bolt which ensures the function of the onset bolt and reduces the number of parts to facilitate manufacture. .

[0006]

In order to achieve the above object, the bolt according to the first aspect of the present invention is characterized in that the bolt is connected to a shaft-shaped bolt portion by caulking with respect to a tip end of the bolt portion. And a plate body rotatably disposed with respect to the portion, wherein the plate body is a demon board having a claw portion directly formed by press working.

According to a second aspect of the present invention, in the first aspect, an annular wall is formed at a tip end of the bolt portion, and the bolt portion and the plate are connected by a caulking process for deforming the annular wall. And

According to a third aspect of the present invention, in the first aspect, a convex portion is formed at a central position on the distal end side of the bolt portion, and the bolt portion and the plate are connected by caulking by plastic deformation of the convex portion. It is characterized by doing.

According to a fourth aspect of the present invention, in the first aspect, the claw portion is formed along the side of the plate.

According to a fifth aspect of the present invention, in the first aspect of the present invention, there is provided the onset bolt having a claw formed along a side of the plate and a claw formed on a surface of the plate.

According to a sixth aspect of the present invention, in the third aspect of the invention, the pawl is formed along the side of the plate.

According to the onset bolt of the present invention, since the claw portion is formed directly on the plate connected to the bolt portion, the onset face which was required as a component in the conventional example can be omitted. The number of parts can be reduced, and the production can be facilitated.

Since the claw portions are formed along the sides of the plate, a sufficient number of claws required for gripping can be formed on the plate.

Further, by connecting the bolt portion and the plate body by a caulking process by plastic deformation of the convex portion formed on the tip side of the bolt portion, the caulking process can be realized by easy processing of the bolt portion. .

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An oni bolt 1 as an example of an embodiment of the present invention will be described with reference to FIGS. 1A is an explanatory front view of the oni bolt 1, FIG. 1B is an explanatory plan view of the oni bolt 1, and FIG. 2A is a bolt portion 10 before performing the caulking process on the oni bolt 1.
2 (b) is a cross-sectional explanatory view of the onset bolt 1. FIG.

The oni bolt 1 has an axial bolt portion 10,
Plate 20 connected to bolt portion 10 by caulking
It is composed of A helical thread 11 is engraved around the bolt 10. Bolt part 10
An annular wall 12 protrudes from one end of the housing (FIG. 2).
(A)) A hexagonal concave portion 14 for rotating the bolt portion 10 by inserting a nut (not shown) is formed on the other end side. The annular wall 12 is formed by cutting a center of a convex portion provided at an end of a bolt portion to form a conical bottom surface 13.

The plate body 20 is formed by slightly bending a substantially square plate side, and a plurality of (four) claw portions 22 are formed on the opposite curved sides 21 and 21, respectively, to form an onion plate. .
These claw portions 22 are formed by bending a wedge-shaped piece continuously provided on the plate side by press working. Further, the curved side 21 is formed as a zigzag side having continuous irregularities, and a claw portion 22 is formed on each irregular side.

A hole 23 is provided in the center of the plate body 20, and the annular wall 12 of the bolt 10 is inserted into the hole 23, as shown in FIG.
A cylindrical body 30 having a conical portion larger than the inner diameter of the annular wall 12 as shown in FIG. 2A is brought into contact with the concave portion at a desired stroke position, and as shown in FIG. A crimping process is performed by crushing.

FIG. 3 shows another example of the embodiment of the kite bolt, which differs from the kite bolts of FIGS. 1 and 2 in the structure of the caulking process. According to this example, the bolt portion 10
A convex portion 15 is formed at a central position on the front end side of FIG.
(A)), the driver 4 from the upper part with respect to this convex part 15;
The plate 20 is connected to the bolt 10 by a crimping process in which 0 and the like are brought into contact with a desired stroke and the convex portion 15 is plastically deformed (FIG. 3B). Another configuration is shown in FIG.
2 and the same components as those shown in FIG. 2, and the same components are denoted by the same reference numerals and description thereof will be omitted.

According to this bolt 1, FIG. 1 and FIG.
As described above, there is no need to form the annular wall 12, so that the cutting step can be omitted, and the caulking process can be performed on the bolt portion 10 by simple processing.

FIG. 4 shows another example of the embodiment of the oni bolt, which is different from the oni bolt of FIG. 1 and FIG.
Are different from each other in the shape of the plate body 20 on which is formed. That is, the plate body 20 is formed in a rectangular shape in which the curved side 21 is a long side, and the plurality of claw portions 22 are formed in a line on a straight side. The other configuration is the same as the onset bolt shown in FIGS. 1 and 2, and the same components are denoted by the same reference numerals and description thereof will be omitted.

FIG. 5 shows a modification of the plate 20 of the onset bolt 1, which is different from FIG. 4 in that the curved side 21 is formed in a rectangular shape having a short side. In addition, the claw portion 22 is formed not only on the curved side 21 but also on the surface of the plate body 20 by forming a cut on the surface of the plate body 20 so that a part thereof is raised. These claw portions 22 are formed by bending a part of the plate body by press working.

According to the above-mentioned onion bolt 1, since the claw portion 22 is formed directly on the plate 20 connected to the bolt portion 10, the number of parts constituting the onion bolt 1 can be reduced. In addition, the manufacturing operation can be facilitated.

Further, since the claw portions 22 are formed along the sides of the plate member 20, a sufficient number of claw portions 22 necessary for gripping can be formed on the plate member 20. The claw portion 22 of the plate 20 of the above-mentioned onset bolt 1 is
Although it is provided only on the side, the claw portions 22 may be provided on all four sides of the plate body 20. Further, the shape and size of the plate 20 and the claw 2
The optimal number and location of the two may be designed according to the type of cable to be gripped.

[0025]

According to the present invention, since the claw portion is formed directly on the plate body connected to the bolt portion, it is possible to omit the demon face required as a component in the conventional example, and to reduce the number of components. In addition to reducing the number of bolts, it is possible to facilitate the work of manufacturing the onigome bolt.

[Brief description of the drawings]

FIGS. 1A and 1B show an onset bolt according to an embodiment of the present invention, wherein FIG. 1A is a front view, and FIG. 1B is a plan view.

FIGS. 2A and 2B are diagrams illustrating a structure of an onset bolt according to an embodiment, in which FIG. 2A is a cross-sectional view of a bolt portion before a caulking process is performed, and FIG.

FIG. 3 shows another example of the embodiment of the onigome bolt.
(A) is a sectional explanatory view of a bolt portion before performing a caulking process,
(B) is explanatory drawing of a cross section of an onimed bolt.

FIG. 4 shows another example of the embodiment of the onigome bolt,
(A) is an explanatory plan view of a plate body of an oni bolt, (b) is an explanatory side view of the plate body, and (c) is an explanatory side view of an oni bolt.

FIG. 5 is an explanatory plan view showing another example of the plate body of the bolt.

FIG. 6 is an explanatory perspective view showing a cable gripping structure using an onset bolt.

FIG. 7 is an explanatory perspective view of a conventional onig bolt.

[Explanation of symbols]

1 ... Onome bolt, 10 ... Bolt part, 11 ... Screw thread,
12 ... annular wall, 15 ... convex part, 20 ... plate, 21 ...
Curved side, 22 ... claw

Claims (6)

[Claims] 1. A plate comprising: a shaft-shaped bolt portion; and a plate body rotatably disposed with respect to the bolt portion by being connected to a tip end of the bolt portion by caulking. An onimus bolt characterized in that the body is an onimus board having a claw portion directly formed by press working. 2. The onset bolt according to claim 1, wherein an annular wall is formed at the tip end side of the bolt portion, and the bolt portion and the plate body are connected by a caulking process for deforming the annular wall. 3. The onset bolt according to claim 1, wherein a convex portion is formed at a central position on the tip side of the bolt portion, and the bolt portion and the plate are connected by caulking by plastic deformation of the convex portion. 4. The onset bolt according to claim 1, wherein a claw portion is formed along a side of the plate. 5. The onset bolt according to claim 1, comprising a claw formed along a side of the plate and a claw formed on a surface of the plate. 6. The bolt according to claim 3, wherein a claw portion is formed along a side of the plate.