JP2945373B1 - Bolt holder - Google Patents

Abstract

An object of the present invention is to provide a locking screw body which is a nut which can be attached to a fixed pipe without being fixed by an operator. Protruding locking parts are provided to make it thinner and stepped, the periphery of the screw hole other than the protruding locking parts is provided with a notch surface narrower than between the protruding locking parts, and the insertion protruding part is protruded from the notch surface The locking screw body and the cup-shaped main body are provided with erected locking portions erected on the opening end surface of the main body, and locking projections are protruded outward from the other ends of the erected locking portions. An insertion body is provided on the opposing surfaces of the standing locking portions to provide a groove into which the insertion protrusion is inserted from the locking projection side end to the main body side.
The locking screw is inserted into the groove of the insert attached to the mounting hole of the fixed pipe, and the locking screw is inserted into the fixed pipe and rotated to be mounted in the mounting hole of the fixed pipe. The spring is
The locking screw is pressed into the fixed pipe between the fixed locking screw and the main body.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bolt receiver, and more particularly, to a bolt receiver on a fixed main body such as a pipe when an object to be fixed is fixed to a fixed main body such as a pipe.

[0002]

2. Description of the Related Art Conventionally, as in a first conventional example shown in FIG. 11, a fixed object such as a bracket fixed to a fixed body such as a scaffold pipe having a closed cross section is provided with a fixing bolt at a mounting position of the scaffold pipe. In addition, a through hole is provided in a fixed object such as a bracket, and a fixing bolt is penetrated through the fixed object and the fixing body to be screwed tightly with a nut and fixed. Similarly, in a second conventional example in which an object to be fixed is fixed to a fixed main body having a closed cross section, as shown in FIG. A main body 102 having a cylindrical shape smaller in diameter than the through hole 101 is provided. One end of the main body 102 is provided as a head 103 larger in diameter than the through hole 101. A nut 104 is provided inside the other end of the main body 102 inside the cylinder. Be fixed to. Then, the head 103 of the main body 102 and the nut 1
The main body intermediate portion 105 between the members 04 is made of a relatively flexible member that is easy to deform and maintains its shape after the deformation. Then, after inserting the main body 102 into the through hole 101, a fixing bolt (not shown) is inserted from the head 103 side, and once screwed with the nut 104 at the other end of the main body 102 to deform the intermediate body portion 105. To make it close to the inner wall of the pipe 100, and then remove the fixing bolt (not shown)
The main body 102 was attached to the pipe 100.

[0003] In a third conventional example shown in Fig. 13, similarly to the second conventional example, after inserting the main body 200 into the through hole, a bolt (tapping screw) is screwed into the main body 200 to deform the main body 200, so-called gypsum. It was attached to a fixed body such as a board. As another conventional example, as shown in FIG. 14, a mounting bolt 30 for mounting is provided in a through hole of a fixed body provided in a closed cross section.
Some insert zeros. In the fourth conventional example, a male screw portion 302 for use as a bolt is screwed from one end of the main body 301 to the main body 301 of the mounting bolt 300. An inscribed member 303 is attached to the other end of the main body 301 so as to be rotatable with the main body 301 (an aspect shown in FIG. 14) or to be rotatable and slidable (an aspect shown in FIG. 14). I have. At this time, the inscribed member 303 is attached to the main body 301 at an eccentric position where the center of gravity is removed.

[0004] The mounting bolt 300 constructed as described above.
Is rotated in the same direction as the main body 301 and inserted into the through hole of the fixed main body. When the main body 301 is rotated after the insertion of the inscribed member 303, the center of rotation of the inscribed member 303 is eccentric.
3 rotates around the center of rotation. In this state, when the nut is screwed in and fixed to the mounting bolt 300 after penetrating the fixing bolt 300, the inscribed member 303 abuts on the inner wall of the through-hole, and the fixing bolt 300 does not fall out of the through-hole. Was fixed to the fixed body. Further, as the fifth conventional example, the simplest is to tap the hole penetrating the fixing body to provide a female screw on the inner surface of the hole, and screw the fixing bolt to the female screw.

[0005]

However, according to the conventional method, a fixing body such as a scaffold pipe must be provided through a through hole, and a fixing bolt inserted through the through hole has Be sure to screw the nut on the receiving side,
The bolt must be screwed together with the other hand while holding the nut with one hand, and workability is poor in narrow places,
In addition, there is a problem that working at a high place involves danger. Further, there is a problem that the strength is significantly reduced at the position of the through hole formed in the fixed main body such as a scaffold pipe. Furthermore, the head of the fixing bolt is also exposed on the side opposite to the fixed side of the fixed object, which is not preferable in appearance, and when mounting another fixed object on the opposite side of the fixing position of the fixed object. With all the screws inserted into the through-holes, the fixing pipes are screwed into the fixing pipes from both sides with holes through the holes of the object to be fixed on both sides, making it difficult for one worker to work.
Further, in the second and third conventional examples, when the object to be fixed is mounted, it is fixed in the through-hole, so that it is not fixed with one hand. Then, it has to be fixed to the fixed main body, so that there is a problem that the operation takes time.

Further, in the fourth conventional example, the mounting bolt 300 having a bolt portion must be inserted into the fixing body, and if there is no room on the side of the fixed object, the mounting bolt 300 is attached to the fixed object. In some cases, the nut may not be able to be attached. In order to solve these problems, various types of male screw portions 302 having different lengths must be prepared. In addition, there were various problems such as a long production time.

In the fifth conventional example, there is a problem that a tapping process must be performed on the fixed main body. In addition, when the fixed main body has a small thickness such as a pipe for a scaffold, a female screw to be tapped is used. There was a problem that a sufficient fixing force could not be held when the bolt was screwed in because the portion was small. Accordingly, the present invention has been made in view of the above-mentioned problems, and in addition to being able to easily attach the bolt receiving device in a short time, has good workability in which it can be easily attached even in a narrow place, and furthermore, screws the bolt with one hand even in a high place. It is an object of the present invention to provide a bolt receiving tool which can be combined and does not involve danger in mounting and fixing an object to be fixed.

[0008]

Means for Solving the Problems According to the present invention, a screw hole formed by screwing a screw on a peripheral surface of a through hole penetrated through a plate-like body is formed thinner than a peripheral portion of the screw hole at an opposing position sandwiching the screw hole. The peripheral edge of the screw hole is a step-shaped overhanging portion, a notch portion in which the periphery of the screw hole other than the overhanging locking portion is narrower than between the overhanging locking portions, and an insertion projecting from the side surface of the notch portion. A locking screw body composed of a projection, a cylindrical main body having a shape that closes one end, and an upright locking portion having one end fixed to the opening end surface of the main body and standing upright so as to face each other. An insertion protrusion that protrudes outward from the other end of the vertical locking portion, and a groove that is provided on the inner surface of the vertical locking portion so as to be curved from the tip to the main body side with respect to the center of the cylindrical main body. And an elastic body having one end inserted into the opening of the insert body and installed along the upright engaging portion. A bolt receiver, wherein the insertion protrusion can be fitted into the groove of the insert,

And,

[0010] A screw hole formed by screwing a screw on the peripheral surface of a through hole penetrating the plate-like body, and a screw hole peripheral edge formed thinner than the screw hole peripheral portion at a position facing the screw hole and facing the screw hole are stepped. A locking screw body comprising: a protruding locking portion, a notch provided to provide a peripheral portion of a screw hole other than the protruding locking portion narrower than between the protruding locking portions, and an insertion protrusion protruding from a side surface of the notch. And a main body having a cylindrical shape that closes one end, an upright locking portion having one end fixed to the opening end surface of the main body and standing upright so as to face each other, and the other end of the upright locking portion And a groove provided on the inner surface of the upright locking portion from the tip to the main body side in parallel with the center of the cylindrical main body and bent at the main body side in a V shape. An insertion body, and an elastic body having one end inserted into the opening of the insertion body main body and installed along the upright locking portion. Bolt receptacle, characterized in that it is possible fitting the input projection into the groove of the insert,

A screw hole is provided at the center, through which a female screw is screwed. The screw hole is concentric with the center of the screw hole and has a large diameter peripheral portion of the screw hole. And provided with an overhanging locking portion which is formed to be thin so that the upper surface thereof is stepped with the screw hole peripheral portion by projecting to the same width as the screw hole peripheral portion,
A locking screw body formed by projecting an insertion protrusion on a side surface of a screw hole peripheral portion at a position orthogonal to the overhanging locking portion, the upper surface of the overhanging locking portion being formed in a widthwise direction, and a cylindrical end; A pair of upright locking portions are provided standing upright from the opening side end surface of the main body having a shape to close and are opposed to each other, and a locking projection projecting outward from the tip of the upright locking portion is provided, A groove is provided on the inner surface of the upright engaging portion from the tip to the main body side, and the groove is provided by bending the tip side toward the center of the cylindrical body of the cylindrical body and bending the main body side into a bent shape with the tip side. The inner diameter of the cylinder is slightly larger than the diameter of the periphery of the screw hole of the locking screw body, and the elastic body is inserted into the opening of the insertion body at one end and installed along the upright locking portion. A bolt receiving member, wherein the insertion projection of the locking screw body can be fitted into the groove of the insertion body;

Is provided.

[0013] In the bolt receiving device configured as described above, the insertion body is inserted from the main body side into a mounting hole formed in the fixed main body to which the bolt receiving device is mounted, and is provided at the tip of the upright engaging portion. The stop is locked to the end of the mounting hole and locked to the fixed body. While pressing the other end of the elastic body positioned inside the opening of the insert body whose one end is locked to the fixed body, while making the cylindrical center of the lock screw body cross the cylindrical center of the insert body, After inserting the insertion projection into the groove of the insert locked in the mounting hole and pressing the inside of the fixed body, turn the locking screw so that the directions of the cylinder center of the insert and the cylinder of the insert coincide. Move. Then, the locking screw body is pressed by the elastic body, the protruding projection is pressed against the inner surface of the fixed main body, and the main body cylindrical portion is positioned and fixed in the mounting hole of the fixed main body. The mounting bolt is screwed together with the object to be fixed to the fixing body by screwing the mounting bolt together with the object to a female thread portion threaded to the locking screw body of the bolt receiver attached to the fixing body.

In the case where the groove of the insert is provided from the tip of the upright engaging portion to the main body side in parallel with the center of the cylindrical main body and the main body side is bent in a V-shape, it is attached to the fixed main body. When the insertion projection of the locking screw is inserted into the groove of the insertion body and pushed into the insertion body, and the insertion projection is inserted at the bent position of the groove, the center of the insertion body and the locking screw Since the center of the body is displaced, the amount of pushing required for rotating the locking screw body can be reduced. If the upper surface of the overhanging locking portion is formed to be curved, when the mounting hole drilled on the curved surface of the fixed body is attached, the curvature of the overhanging locking portion upper surface of the locking screw body may be different from the curved surface around the mounting hole. Since they match, rotation of the locking screw body in the mounting hole is prevented.

[0015]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an explanatory sectional view showing a state in which an embodiment of the present invention is implemented, FIG. 2 is an explanatory view of a fixed pipe, FIG. 3 is an explanatory view of an object to be fixed,
FIG. 4 is an explanatory view showing a state where an object to be fixed is attached to a fixed pipe, FIG. 5 is a view showing a locking screw body, (a) is a perspective view, (b) is a front view, and (c) is a plane view. FIG. 6 (d) shows a side view, FIG. 6 shows an insert, FIG.
FIG. 7B is a plan view, FIG. 7C is a side view, FIG. 7D is a central vertical sectional view, FIG. 7 is a perspective view of the insert, FIG. 8 is a view of the groove, and FIG. FIG. 9B shows an embodiment provided in a curved shape, FIG. 9C shows an embodiment provided in a straight line, and FIG. It is explanatory drawing showing the state implemented inside the hollow wall, and FIG. 10 is a perspective explanatory view of another embodiment.

Reference numeral 1 denotes a fixed pipe which is a fixed main body.
In this embodiment, the fixed pipe 1 is a pipe such as a protective fence, but may be any pipe or section having a closed cross-sectional shape, such as a scaffold or support pipe, a scaffold frame, or Any object or part such as a wall having a space inside may be used. Reference numeral 2 denotes an object fixed to the fixed pipe 1. The fixed object 2 is a fixing attachment capable of fixing a bracket or the like attached to the fixed pipe 1 in this embodiment. In the present embodiment, the fixed object 2 is a fixing attachment, but the fixing object 2 may be implemented by a bracket, a handrail, or the like which is directly fixed to the fixed pipe 1 and used. The fixing pipe 1 is provided with a mounting hole 11 for mounting the object 2. The mounting hole 11 formed in the fixed pipe 1 does not have to be provided through the fixed pipe 1. Also, a mounting hole 21 is formed in the object 2 at a position facing the mounting hole 11 in a state where the mounting hole 21 is mounted on the fixed pipe 1. Then, the mounting object 2 is fixed to the fixing pipe 1 by fixing the mounting holes 11 and 21 with the bolts 3. The present invention relates to a bolt receiver that can be screwed so that the bolt 3 is fixed to the fixed pipe 1 as described above.

Reference numeral 4 denotes a bolt receiver according to an embodiment of the present invention. The bolt receiver 4 is located between the locking screw 5 for screwing the fixing bolt 3, the insert 6 for fixing the locking screw 5 to the fixed pipe 1, and the locking screw 5 and the insert 6. And a spring 7 which is an elastic body for pressing the locking screw 5 against the fixed pipe 1.

As shown in FIG. 5, the locking screw 5 has an oval shape as a whole, a through hole is provided at the center, and a female screw is provided on the inner surface of the through hole to form a screw hole 51. Then, an extended locking portion 52 is provided so that both ends in the longitudinal direction of the oval shape are formed thinner than other portions and become stepped. Further, the locking screw body 5 has a cutout surface 53 provided by cutting out the other portion of the oval shape in the screw hole 51 direction, and the cutout surfaces 53 are provided in parallel with each other. Therefore, the notched surface 53 is
Part of the side of And, in the notch surfaces 53, 53,
The insertion protrusion 54 is provided in a protruding manner. Therefore, the locking screw 5 is
As shown in FIG. 5, at an opposing position with the screw hole 51 interposed therebetween, a projecting locking portion which is thinner than the peripheral portion of the screw hole 51, protrudes outward and has two steps in side view, and includes a cutout surface 53. 52
The diameter of the other parts is slightly smaller than the mounting hole 11 of the fixed pipe 1, and the locking screw 5 corresponds to a nut for fixing the object 2 to the fixed pipe 1 with the bolt 3.

The insert 6 includes a cylindrical main body 61 having one end closed in a cup shape, and an open end face 62 of the main body 61.
And an upright engaging portion 63 that stands upright in the direction of the center of the cylinder. The main body 61 has a mounting hole 1 formed in the fixed pipe 1.
1 is a cup shape having a cylindrical diameter that can be inserted into the main body 61.
An upright locking portion 63 is erected from the opening end face 62 of the boss. The upright locking portions 63 are formed as a pair, and one ends thereof are open end surfaces 62 so that they face each other and are parallel to the center of the cylinder.
Fixed to Therefore, the inner side surfaces 64, which are the side surfaces opposed to the opposed standing locking portions 63, are configured to be parallel planes, and the outer side surfaces are erected so as to be integrated with the cylindrical side surface of the main body 61. In this embodiment, the main body 61 and the upright locking portion 63 are made of a polymer material that is integrally molded. Of course, the vertical locking portions may be made of separate members such as a polymer material and the main body is made of metal. At the other end of the upright locking portion 63, a locking projection 65 is provided so as to protrude to the opposite side from the opposing vertical locking portion 63. When the insert 6 is inserted into the mounting hole 11 of the fixed pipe 1, the locking projection 65
The locking protrusion 65 is provided so as to be locked to the end of the mounting hole 11. Therefore, even if the insert 6 is inserted into the mounting hole 11, there is no danger that the insert 6 will enter the inside of the fixed pipe 1 because the locking projection 65 is locked in the mounting hole 11. Further, a groove 66 is provided on the inner side surface 64 of the upright engaging portion 63. The groove 66 is linearly provided from the end of the upright engaging portion 63 on the side of the locking projection 65 toward the main body 61 toward the center of the cylinder of the main body 61. A groove 66 is provided symmetrically with one groove on the inner side surface 64 of the other upright engaging portion 63 that is bent in a “” shape. The insert 6 is inserted into the mounting holes 11 of the fixed pipe 1 between the grooves 66 provided opposite to each other.
The insertion protrusion 5 of the locking screw 5 is inserted and attached to the
4 is inserted from the end of the locking protrusion 65 side. The interval between the standing locking portions 63 thus configured is slightly wider than the gap between the cutout surfaces 53 and 51 of the locking screw body 5. 5 insertion projection 54
Can be inserted into the groove 66, and in this state, the insertion protrusion 5
The insert 6 can be turned around the center 4.

As shown in this embodiment, a groove 66 into which the insertion projection 54 of the locking screw 5 is inserted is provided in the main body 61 side by bending it into a rectangular shape as shown in FIG. In order to facilitate the rotation in the fixed pipe 1, the locking screw 5 is inserted obliquely into the fixed pipe 1 by inserting the locking screw 5 sideways up to the bent portion of the groove 66 so as to be inserted obliquely into the fixed pipe 1. It is. That is, in a state where the locking screw 5 is inserted up to the bent portion of the “く” shape, the center of the locking screw 5 is eccentric with the center of the cylinder of the insertion body 6, and the pushing amount of the locking screw 5 is Is less than the case where the groove 66 is provided in a straight line toward the main body without being bent in the shape of a letter "C", and the groove 66 can be easily rotated.
Therefore, as shown in FIG. 8A, the groove 66 is linearly moved toward the main body 61 so as to secure the state of being completely inserted into the mounting hole 11 while inserting the locking screw 5 obliquely into the groove 66. May be provided, as shown in FIG.
It is also possible to implement the groove portion 66 not in the shape of a “C” but to provide the whole or a part in a curved shape. Of course, as shown in FIG. 11C, the groove 66 may be provided in a straight line on the main body 61 side. It needs to be longer.

The spring 7 connects the insert 6 to the fixed pipe 1.
, And the locking screw 5 is inserted into the groove 66 of the insert 6 and mounted in the fixed pipe 1. The overhanging locking section 52 is provided on the inner peripheral surface of the mounting hole 11 of the fixed pipe 1. In order to press the locking screw 5 toward the inner surface of the fixed pipe 1 in the abutting state, an upright lock is provided so that one end is located in the cylinder of the insert 6 and the other end is in contact with the locking screw 5. It is attached between the parts 63. In this embodiment, the elastic body is constituted by the steel spring 7, but the elastic body may be constituted by a plastic made of a polymer or an elastic cylindrical elastic body. What is necessary is just to be able to press the set screw 5 from the main body 61 side of the insert 6 to the mounting hole 11 side of the fixed pipe 1. The bolt receiver 4 thus configured is attached to the fixed pipe 1, and the object 2 is fixed to the bolt 3.
And the state of being attached to the fixed pipe 1 by the bolt receiver 4 will be described. The insert 6 is inserted into the mounting hole 11 of the fixed pipe 1 from the main body 61 side until the locking projection 65 is locked around the mounting hole 11. At this time, the locking projection 65 is mounted at a position where the vertical locking portion 63 is substantially perpendicular to the longitudinal direction of the fixed pipe 1 on the outer periphery of the mounting hole 11 as shown in FIG.

Next, the locking screw 5 is inserted into the fixed pipe 1 along the groove 66 while the locking screw 5 is positioned so as to be substantially perpendicular to the mounting hole 11 so that the insertion protrusion 54 can be inserted into the groove 66. Go. At this time, the locking screw 5
The spring 7 located on the side of the mounting hole 11 is inserted from inside the main body 61 of the insert 6 while pressing it. Then, the locking screw 5 was inserted into the fixed pipe 1 obliquely with respect to the center of the insert 6 past the bent portion of the groove 66, and the locking screw 5 was completely inserted into the fixed pipe 1. By the way, the locking screw 5 is rotated about the insertion projection 54. Then, while the locking screw body 5 rotates and is pressed by the spring 7, the extended locking portion 52 abuts around the mounting hole 11 in the fixed pipe 1 and is locked by the pressing force of the spring 7. Therefore, when the locking screw 5 is viewed from the outside of the mounting hole 11, the locking screw 5 which is a female screw is mounted in the mounting hole 11. In this state, the mounting hole 21 of the fixed object 2 is aligned with the female screw portion 55 of the locking screw body 5, and the bolt 3 is inserted through the mounting hole 21 to be screwed into the female screw portion 55 to fix the fixed object 2. Attach to pipe 1. When the fixed object 2 is attached to the fixed pipe 1 in this manner, the locking screw body 5 corresponding to the nut is extended in the mounting hole 11 in the longitudinal direction of the fixed pipe 1 so that the locking portion 52 is located. Fixed pipe 1
The overhanging abutment 53, which is the abutment portion between the pipes, is located closest to the bolt 3 so that even if the bolt 3 is rotated during screwing, the fixed pipe 1
When the extension locking portion 52 is pressed by the spring 7 on the inner surface of the fixed pipe 1 and tries to rotate, the locking screw body 5 is prevented from rotating in the direction away from the bolt 3 due to the curvature of the inner surface of the fixed pipe 1. Body 5 does not rotate. Therefore, it is possible to fix the object 2 by strongly screwing the bolt 3 to the fixing pipe 1 in the embodiment of the present invention without fixing the locking screw body 5 corresponding to the nut.

Further, the extension locking portion 52 of the locking screw portion 5 is
In this embodiment, since the fixing member is the fixing pipe 1,
As shown in FIG. 5, the shape of the surface of the overhanging locking portion 52 was formed with a high curved surface at the central portion so as to match the curvature of the inner peripheral surface of the mounting hole 11 of the fixed pipe 1, but as shown in FIG. When the bolt receiver 4 is applied to the hollow closed wall 10, the overhanging locking portion 52 is configured as in the second embodiment described below. That is, as shown in FIG. 9, the fixed main body is a wall 10 formed of a hollow concrete member. A mounting hole 11 is provided on the surface of the wall 10. In this embodiment, the mounting hole 11 penetrates from the surface of the wall 10 to the hollow portion, and does not penetrate the rear surface of the wall 10. The locking screw portion 5 to be mounted in the mounting hole 11 of the wall 10 thus provided.
Since the inner surface of the mounting hole 11 of the wall 10 is formed from a substantially flat surface, the shape of the surface of the extended locking portion 52 of the locking screw portion 5 differs from that of the first embodiment as shown in FIG. ,
Form with a plane. With such a configuration, when the mounting bolt 3 is screwed into the mounting hole 11, the area of contact between the locking screw portion 5 and the inner surface of the mounting hole 11 of the wall 10 becomes large. Are not easily rotated inside the mounting hole 11.

In the second embodiment, the configuration of other parts of the bolt holder 4 is the same as that of the first embodiment.

【The invention's effect】

According to the bolt receiving device constructed as described above, when the object to be fixed is attached to the fixed pipe via the bolt, the locking screw corresponding to the nut is already attached to the fixed pipe. It is possible for a person to screw the bolt and the locking screw body without fixing the locking screw body, so that the fixed object can be easily attached to the fixed pipe even in a place where working conditions are poor such as a high place or a narrow place. At the time of mounting, the curved surface of the extension locking portion comes into contact with the inside of the fixed pipe in the longitudinal direction due to the pressing force of the spring, which is an elastic body. It doesn't go around with you. Further, since no mounting through hole is formed to penetrate the opposed surface of the fixed pipe, the strength of the fixed pipe is not significantly impaired.

[Brief description of the drawings]

FIG. 1 is a central sectional explanatory view showing a state in which an embodiment of the present invention is implemented.

FIG. 2 is an explanatory view of a fixed pipe.

FIG. 3 is an explanatory view of an object to be fixed.

FIG. 4 is an explanatory view of a state where an object to be fixed is attached to a fixed pipe.

5 (a) is a perspective view of a locking screw body, FIG. 5 (b) is a front view, FIG. 5 (c) is a plan view, and FIG. 5 (d) is a side view.

6 (a) is an explanatory front view of the insert, FIG. 6 (b) is an explanatory plan view thereof, FIG. 6 (c) is an explanatory side view thereof, and FIG.

FIG. 7 is an explanatory perspective view of an insert.

8A is an embodiment view in which a groove portion is provided in a “C” shape, FIG. 8B is an embodiment view in which a groove portion is provided so as to be curved, and FIG. 8C is a straight line shape. Embodiment diagram provided

FIG. 9 is an explanatory diagram showing a state in which the inside is implemented on a hollow wall.

FIG. 10 is an explanatory perspective view of another embodiment of the locking screw portion.

FIG. 11 is a diagram of a first conventional example.

FIG. 12 is a diagram of a second conventional example.

FIG. 13 is a diagram of a third conventional example.

FIG. 14 is a diagram of a fourth conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Fixed pipe which is a fixed main body 11 Mounting hole 2 Fixed object 21 Mounting hole 3 Bolt 4 Bolt receiver 5 Locking screw part 51 Screw hole 52 Overhanging locking part 53 Notch surface 54 Insertion protrusion part 6 Insert body 61 Main body 62 Opening End face 63 Standing locking part 64 Inner surface 65 Locking projection 66 Groove part 7 Spring 10 Wall as fixed body

Continuation of front page (58) Field surveyed (Int.Cl. ⁶ , DB name) F16B 37/04

Claims (3)

(57) [Claims] 1. A screw hole formed by screwing a screw on a peripheral surface of a through hole penetrated through a plate-like body, and a screw hole peripheral portion formed to be thinner than the screw hole peripheral portion at an opposing position across the screw hole. A latch consisting of a step-shaped overhanging locking portion, a notch provided at the periphery of the screw hole other than the overhanging locking portion to be narrower than between the overhanging locking portions, and an insertion protrusion projecting from the side surface of the notch. A screw body, a tubular main body having a shape that closes one end, an upright engaging portion having one end fixed to an opening end surface of the main body and standing upright so as to face each other; An insertion body comprising a locking projection projecting outward from the other end, a groove provided on the inner surface of the standing locking portion from the tip to the main body side and curved with respect to the center of the cylindrical main body, An elastic body that is inserted into the opening of the main body and is installed along the upright locking section. The insertion protrusion of the locking screw body is inserted into the groove of the insertion body. A bolt receiver which is insertable. 2. A screw hole formed by screwing a screw on a peripheral surface of a through hole penetrated through a plate-like body, and a screw hole peripheral edge formed to be thinner than the screw hole peripheral portion at an opposing position across the screw hole. A latch consisting of a step-shaped overhanging locking portion, a notch provided at the periphery of the screw hole other than the overhanging locking portion to be narrower than between the overhanging locking portions, and an insertion protrusion projecting from the side surface of the notch. A screw body, a tubular main body having a shape that closes one end, an upright engaging portion having one end fixed to an opening end surface of the main body and standing upright so as to face each other; A locking projection protruding outward from the other end, and a groove provided on the inner surface of the standing locking portion from the tip to the main body side in parallel with the center of the cylindrical main body and bending the main body side into a V shape. And an elastic body having one end inserted into the opening of the insert body and installed along the upright engaging portion. Wherein the insertion protrusion of the bolt can be fitted into the groove of the insert. 3. A screw hole which penetrates the center and is screwed with a female screw. The screw hole is concentric with the center of the screw hole and has a large diameter screw hole peripheral portion, is concentric with the screw hole peripheral edge, and An overhang locking portion which is large in diameter and protrudes to the same width as the screw hole peripheral portion and is formed thin so that the upper surface is stepped with the screw hole peripheral portion is provided, and the screw hole peripheral portion side surface at a position orthogonal to the overhang locking portion. A locking screw body formed by projecting an insertion projection on the upper surface of the overhanging locking portion curved in the width direction, and an opening end surface of the main body having a cylindrical shape that closes one end. A pair of standing locking portions provided to face each other, a locking projection projecting outward from the tip of the standing locking portion is provided, and a groove is formed on the inner surface of the standing locking portion from the tip to the main body side. Is established,
The groove is provided with the distal end side in the direction of the center of the cylinder of the cylindrical main body and the main body side is bent in the shape of a letter with the distal end side. An insertion body having a large diameter, and an elastic body having one end inserted into the opening of the insertion body main body and installed along the upright locking portion, and the insertion protrusion of the locking screw body is fitted into the groove of the insertion body. A bolt receiver characterized in that it is possible.