JP2003139118A - Fastening body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve a problem wherein, when a strike anchor, a cut anchor or the like is used on a concrete side wall or the like, it falls off from the concrete side wall by itself and does not achieve an attachment role. SOLUTION: A divided part 2 and a divided part 3 are provided on both ends of an end part of a tubular body 1. A fastening shaft 8 is inserted through a conical inclusion body 4 provided with a threaded part therein and a conical inclusion body provided with a through hole therein and the fastening shaft 8 is rotated to expand the both end parts of the tubular body 1 from a center toward end part and presses and fixes the same on attachment base body X to make a fastening body.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is capable of firmly attaching to a mating member when mounting a machine or the like on a concrete floor without using screws. The present invention relates to a fastening body that can be widely used for equipment for manufacturing them.

[0002]

2. Description of the Related Art What has been used as a conventional technique of this type is mainly used for a material in which a screw cannot be used for a mounting member.

Therefore, in order to mount a machine or the like on the flat surface of concrete, there were strike anchors, cut anchors, etc., which are referred to by product names.

In these, a conical member is driven into a hole in which a round hole is formed in concrete and one end of the cylinder is divided into plural parts, and the spread of the tip of the cylinder is crimped to the side wall of the hole in the concrete. Then it was fixed.

For example, a machine or the like is attached by the screw portion provided on the opposite side of the cylindrical body.

Therefore, in order to mount a mating mounting member on the mounting base without using screws for the mounting base, the strike anchors, cut anchors, etc. of the fasteners have the drawbacks of concrete described below in order. However, even though the mounting substrate can be used in concrete, it cannot be used in metal or soft synthetic resin.

On the wall surface such as a block or a stone wall instead of concrete, in the conventional strike anchor or cut anchor of a fastener, an unreasonable expansion force is applied to the hole provided in the mounting base and the mounting base is cracked. I could not use it.

A conventional fastener such as a cut anchor, as shown in FIG. 20, has a cylindrical body 111A formed by driving a cylindrical body 111A into a tapered portion 109B of a conical shaft body in a mounting base.
Since the shaft was just fixed to the shaft, it had the drawback of being easy to pull out by itself.

[0009]

[Problems to be Solved by the Invention] When a conventional strike anchor or cut anchor is used for concrete or the like,
There was a case in which the side wall of the concrete hole could not be spread and fitted into the side wall of the concrete, so that the side wall could not come out by itself and the role of its attachment could not be achieved.

On the wall such as a block or a stone wall instead of concrete, in the conventional strike anchor or cut anchor of a fastener, an unreasonable expansion force is applied to the hole provided in the mounting base and the mounting base is cracked. There was a drawback that it could not be used.

For this reason, it is not easy to securely attach strike anchors or cut anchors to concrete in order to firmly press them into the side walls of concrete holes so that they do not come out, and to use them for blocks and stone walls. There was a defect that it could not be done.

On the other hand, if a strike anchor or a cut anchor is attached, it has a drawback that it is difficult to remove.

In the past, it was possible to use fasteners such as strike anchors and cut anchors on concrete as the mounting base, but it is not necessary to use screws for mounting bases such as metal or synthetic resin. Could not be installed.

Further, there is a drawback that once it is attached to concrete, such as a fastener such as a strike anchor or a cut anchor, it cannot be attached / detached to / from the attachment base. There were almost no fasteners to replace them.

Therefore, the object of the present invention is to solve the problems of the prior art, and not only concrete but also other materials can be firmly fixed without using screws for the mounting base. Another object of the present invention is to provide a fastening body that can be pressure-bonded and fixed so that it does not come out and that the attached one can be easily removed.

Another object of the present invention is to provide a fastened body which cannot be easily removed even if it is attached, and which is mainly used for concrete and can be firmly fixed by pressure so as not to come out firmly.

[0017]

According to the first invention of the above object, a left-hand thread and a right-hand thread are provided inside both ends of a tubular body provided with a split portion or a thin portion in the lengthwise direction of the tubular body. The two interposers are fitted respectively to the left screw and the right screw of the coupling shaft, and the coupling shaft is rotated to expand so that both ends of the cylindrical body come into contact with the inner wall of the hole of the mounting base. And the fastening body.

A second aspect of the present invention is to fix a fixed body by screwing a coupling shaft also having a right-hand screw and a left-hand screw into two interposers having a right-hand screw and a left-hand screw, and rotating the coupling shaft. Is achieved by a fastening body configured to act so as to abut the inner wall of the hole of the mounting base.

In the third object of the above object, after the interposition body is attached to the threaded portion of the coupling shaft through the through hole of the interposition body, a split portion or a thin portion is further attached to the coupling shaft in the longitudinal direction of the tubular body. Attach the provided cylinder, screw the threaded portion of the interposer to the threaded portion on the tip side of the coupling shaft, rotate the coupling shaft, and contact both ends of the cylinder with the inner wall of the hole of the mounting base. A fastening body characterized by expanding so as to be in contact with each other.

A fourth aspect of the present invention is to install a tubular body having a split portion or a thin portion in the lengthwise direction of the tubular body on the screw portion and the pressing portion of the coupling shaft, and to attach the distal end side of the coupling shaft. Fastening body characterized in that the threaded portion of the interposition body is screwed into the threaded portion of the joint body, and the joint shaft is rotated so that both ends of the tubular body are expanded so as to contact the inner wall of the hole of the mounting base body. To do.

In a fifth aspect of the present invention, an interposition body having a through hole is passed through a coupling shaft, and an interposition body having a threaded portion facing the interposition body is screwed into the coupling shaft, This is achieved by a fastening body characterized in that the fixed body is caused to come into contact with the inner wall of the hole of the mounting base body by rotating the rotating shaft.

A sixth aspect of the present invention is to rotate an axis of rotation by screwing an interposer having a threaded portion inside, which is opposed to a pressing portion provided integrally with a coupling shaft, to the coupling shaft. Is achieved by a fastening body characterized in that the fixed body is caused to act so as to come into contact with the inner wall of the hole of the mounting base body.

A seventh aspect of the present invention is a split portion side of a tubular body in which a split portion is provided on a conical tapered portion of a coupling shaft having a conical tapered portion on the coupling shaft and a threaded portion on the other end. Inserting the coupling shaft into the mounting base, insert the cylinder into the mounting base to expand the split side of the cylinder, and hold the force that press-fits the cylinder to the mounting base without loosening. To make a fastening body characterized by lengthening the coupling axis so that it can be done.

The eighth invention of the above-mentioned object is a pressure-bonding plate which connects a disk-shape having a screw hole and a disk-shape having a through hole therein (hereinafter, the pressure-bonding plate may not be the plate itself. , A support piece that exerts the same effect as a crimping plate attached by crimping to the mounting base) and the screw part of the coupling shaft is screwed into the screw part that forms the frame, and the crimping plate is mounted. A fastening body characterized by being pressed into contact with the hole of the base body.

A ninth aspect of the present invention is to provide a screw hole in one of the crimping plates, screw a coupling shaft into the screw hole, bring the other side of the crimping plate into contact with the side wall of the coupling shaft, and press the center of the crimping plate. A fastening body characterized in that the portion is pressed into contact with the hole of the mounting base.

According to a tenth aspect of the present invention, a crimping plate is provided with holes at both ends thereof, and a coupling shaft is passed through the crimping plate. A fastening body characterized in that a rotary wheel is provided on the tip side of a shaft and a central portion of a crimping plate is pressed into contact with a hole of a mounting base.

[0027]

BEST MODE FOR CARRYING OUT THE INVENTION The embodiment of the present invention will be described by dividing it into four parts. First, a split portion obtained by dividing the radial portion at both ends in the length direction of the tubular body into a plurality of portions, or a thin portion At both ends of the provided cylinder, one has an interposer with a left screw inside, and the other has an interposer with a right screw inside, on the opposite side. Make sure that the screw and the right-hand screw fit together.

In order to mount the fastening body in accordance with the hole diameter of the mounting base, when the tubular body is fixed and the coupling shaft is rotated, two interposing bodies at both ends of the tubular body enter the tubular body, and the tubular body is centered. It will spread from the part toward the end.

The cylindrical body thus expanded is inserted into the hole of the mounting base.

When inserted in this way, both ends of the tubular body are crimped into the holes of the mounting base, so that when the coupling shaft is turned, both ends of the tubular body expand and are firmly fixed in the holes of the mounting base.

Thus, it is possible to obtain a fastening body in which both ends of the tubular body are firmly pressed and fixed to the side wall of the mating mounting hole.

The fastening body mounted through the work of the process of paragraph 0030 is attached by the action of the right screw and the left screw provided on the interposition body and the coupling shaft, and is stable even if other mounting members are mounted on the coupling shaft. The holding power can be maintained.

In the second embodiment of the invention, the invention is such that after the interposition body is attached to the thread portion of the coupling shaft through the through hole of the interposition body, the coupling portion is further split in the longitudinal direction of the cylindrical body. Alternatively, a tubular body provided with a thin portion is attached, and the threaded portion of the interposition body is screwed into the threaded portion on the tip side of the coupling shaft, and the coupling shaft is rotated so that both ends of the tubular body are holes in the mounting base. Abut on the inner wall of the so that it expands.

Further, the invention is characterized in that the screw portion and the pressing portion of the coupling shaft are
When a tubular body provided with a split portion or a thin portion in the lengthwise direction of the tubular body is attached, the threaded portion of the interposition body is screwed into the threaded portion on the distal end side of the coupling shaft, and the coupling shaft is rotated. The both ends of the cylindrical body are expanded so as to come into contact with the inner wall of the hole of the mounting base.

When the thus expanded cylinder is inserted into the hole of the mounting base, both ends of the cylinder are crimped into the holes of the mounting base. Therefore, when the coupling shaft is rotated, both ends of the cylinder are expanded and mounted. Firmly adheres to the holes in the substrate.

As a result, it is possible to obtain a fastening body in which both ends of the tubular body are firmly pressed and fixed to the side wall of the mating mounting hole.

The fastening body attached through the work in the process of paragraph 0035 is attached by the action of the screw provided on the interposition body and the coupling shaft, and a stable holding force can be obtained even if another mounting member is attached to the coupling shaft. It is something that can be maintained.

Further, an interposer having a through hole is passed through the coupling shaft, an interposer having a threaded portion inside the confronting interposer is screwed onto the coupling shaft, and the rotary shaft is rotated. The fixing body (the fixing body is as described in the paragraph number 0114 of the embodiment) is brought into contact with the inner wall of the hole of the mounting base.

Further, an interposition body having a threaded portion inside, which faces a pressing portion provided integrally with the coupling shaft, is screwed into the coupling shaft,
By rotating the rotary shaft, the fixed body (the fixed body is as described in the paragraph 0114 of the embodiment) can be caused to act so as to abut against the inner wall of the hole of the mounting base.

A third embodiment of the invention is a split portion of a tubular body in which a split portion is provided on a conical tapered portion of a coupling shaft having a conical tapered portion on the coupling shaft and a threaded portion on the other end. Inserting the coupling shaft from the side into the mounting base, driving in the cylindrical body to expand the split side of the cylindrical body, and the force for pressing and fixing the cylindrical body to the mounting base does not cause slack. A fastening body having a long connecting shaft so that it can be held.

According to this invention, the split portion of the tubular body is pressed and fixed between the taper portion of the shaft and the mounting base to be sandwiched, and the tubular body is prevented from coming off. To do this, lengthen the shaft so that the force applied to the mounting member becomes the tension of the shaft and is always applied to the crimping and fixing part. It is possible to obtain a fastening body in which there is no risk that the existing portion will come loose.

In the fourth embodiment of the invention, one disc-shaped inner portion has a screw, and the other disc-shaped inner portion has a through hole. To form a frame.

A fastening body is obtained by passing a coupling shaft through the inside of the frame and screwing it into a screw, and by rotating the coupling shaft, the crimping plate is brought into contact with the hole of the mounting base body and mounted.

Further, a portion having a tightening action of a screw portion for crimping the crimping plate to the hole of the mounting base is provided on one side of the coupling shaft, and the other side of the crimping plate is passed through the hole of the mounting base to be coupled. As a result of crimping the side wall of the shaft, the crimping plate is brought into contact with the hole of the mounting base and mounted to obtain a fastening body.

[0045]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The first embodiment of the invention will be described with reference to the drawings based on the drawings. FIG.
And the attachment member B are fastened by the fastening body of the present invention.

In the drawings, reference numeral 1 is a cylindrical body made of, for example, iron, stainless steel, aluminum or synthetic resin.

The tubular body 1 has split portions 2 in the lengthwise direction of both ends thereof (the lengthwise direction of the tubular body indicates the lengthwise direction of the tubular body which is perpendicular to the radial direction of the tubular body). A split portion 3 is provided. Reference numeral 4 denotes a first intervening body having a conical shape and having a left screw 5 provided therein. The conical portion is inserted into the left end portion of the cylindrical body 1 in the drawing. Reference numeral 6 is also an intermediate body having a conical shape and a right-hand screw 7 provided therein, and is configured so that the conical portion is inserted into the right end portion of the cylindrical body 1 in the drawing.

A coupling shaft 8 having a left screw 9 and a right screw 10 is screwed onto these interposers 4 and 6.

When the connecting shaft 8 is rotated in one direction, the intervening body 4 and the intervening body 6 move in a direction in which the intervening body 4 and the intervening body 6 come close to each other due to the action of the left screw and the right screw. The parts are pushed and spread so as to expand from the center toward the ends, and both ends of the cylinder 1 are pressed and fixed to the side surfaces of the holes of the mounting base.

As a result, the connecting shaft 8 is firmly fixed to the mounting base.

The attachment member A and the attachment member B are attached to the connecting shaft 8 by attaching and tightening the tightening wheel C to the connecting shaft 8 thus attached.

On the other hand, if the tightening wheel C is removed and the coupling shaft 8 is rotated in the opposite direction to the above, similarly, the intervening body 4 and the interposing body 6 move in the direction in which they are separated from each other by the action of the left and right screws. The interposer is separated from both ends of the cylinder 1, and both ends of the cylinder 1 are separated from the side surface of the hole of the mounting base.

Therefore, the fastening body can be taken out from the hole of the mounting base.

According to this structure, it is possible to obtain the fastening body which can be easily fixed to or detached from the hole of the mounting base.

According to the above-mentioned fastening body, the coupling shaft 8
When the tightening portion 11 for rotating the
As a result, the two interposers 4 and 6 enter the inside of the tubular body 1, so that both ends of the tubular body 1 spread out from the center of the tubular body 1 toward the end of the tubular body, and the mounting base The cylindrical body 1 is firmly pressed and fixed to the side wall of the hole of X, and as a result, the fastening body is mounted without coming out from the hole of the mounting base X.

As shown in FIG. 7, in order to enlarge the expanded portion of the tubular body 21, both ends of the tubular body 21 in the radial direction inside the tubular body 21 in which split portions are provided at both ends of the tubular body are By providing the inclined surface 32 and the inclined surface 33 that expand from the center portion to the end portion of the cylindrical body, the conical tapered surface like the intervening body 24 and the interposing body 26 is not required, and the interposing body is the same as the cylindrical body 21. Since it goes inside, the length of the tubular body in the length direction can be shortened, and both ends of the tubular body 21 can be expanded.

By providing the concave portion 58 in the central portion of the tubular body as shown in FIG. 20, both ends of the tubular body can be easily bent even with a small force, so that the function of attaching the fastening body can be increased. .

In this way, even if the tubular body 21 is small, the tubular body 21 can be firmly pressed and fixed to the mounting base Y with a large force.

An application example of the present invention will be described with reference to FIGS.
In addition to those described and described above, in the tubular body, various tubular bodies can be used as described below.

In FIG. 8, the split portion 2A and the split portion 3A are provided in the tubular body 35, and the connecting portion 34 forms one tubular body 35.
The cylindrical body 3 is provided in the central portion of the cylindrical body 35 in the lengthwise direction.
5 is configured.

The connecting portion 34 may be provided thinner than the other portions of the tubular body 35. The function of the connecting portion 34 is to prevent the tubular body 35 from idling when the tubular body 35 is inserted into the hole of the mounting base. First, the cylindrical body 35 is pressed against the wall surface of the hole of the mounting base body to prevent the cylindrical body 35 from idling, and then both ends of the cylindrical body 35 are firmly fixed to the holes of the mounting base body.

Further, when the inclined surfaces 54 are provided on both sides of the connecting portion 34 so that the connecting portion 34 can easily enter the hole of the mounting base, the tubular body 35 can easily enter the mounting base even when the fastening body is attached and detached. Further, it is easy to take out.

FIG. 16 shows another application example of the present invention, in which the connecting portion 55, the split portion 2B, and the split portion 3B are provided on the tubular body 41 so as not to fall apart when both ends of the tubular body 41 are expanded. By providing an easy-to-cut coupling portion 56 between them, the tubular body of the fastening body of the present invention can be obtained.

FIG. 18 shows another application example of the present invention, in which a plurality of thin-walled portions 57 are provided in the lengthwise direction of the tubular body 51 at the portion forming the tubular portion of the tubular body 51. Thin part 57
When both ends of the tubular body 51 are expanded from the thin portion provided with, the thin portion 57 is separated and both ends of the tubular body 51 are expanded, and both ends of the tubular body 51 serve as an interposer and a mounting base. It is pressed and firmly fixed.

The cylindrical body 51 as shown in FIG. 18 is used, for example, in a place where there is a crack in the mounting base such as a stone wall, with a force balanced against the side wall of the hole of the mounting base. Since it is in contact with the mating wall surface, it is possible to obtain a fastening body that is easily adapted to the mounting base.

As described above, the conditions under which the cylinder is attached to the mounting base vary depending on the shape of the cylinder and how the cylinder is provided with the split portion.

A split portion is provided in the tubular body as in the tubular body 1 in FIG. 2, or as shown in FIG. 9 or FIG. 16, leaving a coupling portion formed in the central portion with the central portion of the tubular body as a sakai. It is also possible to provide a plurality of split portions on the tubular body and form the tubular body so that both ends of the tubular body are fixed to the holes of the mounting base body.

To further explain the present invention, if the central portion in the lengthwise direction of the tubular body is formed thinner than the other portions, it becomes easier to open from the central portion of the tubular body toward both ends, and the fastening body can be fastened easily. It can also be

The thickness can be reduced by forming an annular recess on the inner or outer surface of the cylinder or on the inner or outer surface of the cylinder.

The shape of the cylinder is determined by the conditions of formation including the material of the mounting base, the size of the hole, the depth of the hole, and the like.

In the above embodiments, the cylindrical body has a round shape, but it can be formed with a rectangular shape.

Further, the cylindrical body is inserted between the mounting base body and the interposition body and is pressure-contacted and fixed to the wall surface of the hole of the mounting base body. The cylindrical body is not limited to the cylindrical body as long as it has a similar function. However, other fixed materials may be used.

The shape of the split portion provided on the tubular body depends on the material of the mounting base, etc., but both ends of the tubular body are firmly pressed and fixed to the side walls of the holes of the mating attachment to form the fixed portion of the tubular body. It is only necessary to set the width, length, etc. of the split portion that forms the shape of the cylindrical body.

Further, in order to prevent the outer diameter surface of the tubular body from slipping when the tubular body is attached to the mounting base body and to prevent the fastening body from coming out of the mounting base body after being attached, If the outer diameter surfaces of both ends are provided with sharp irregularities or the like, the side walls of the holes of the mounting base can be embedded in the mounting base to facilitate pressure bonding.

Further, the outer peripheral surface of the cylindrical body is provided with a sawtooth-shaped groove having irregularities formed at a right angle to the annular inclined surface in the depth direction of the hole of the mounting base body, whereby the cylindrical body is mounted. A fastening body can be obtained in which it is easy to enter the holes of the base body and hard to come out.

When a material having a spring force is used for the tubular body of the present invention, both ends of the tubular body are less likely to be permanently deformed when the tubular body is used as a fastening body. Therefore, the fastening body of the present invention is attached and detached. To facilitate.

The conical tapered surface of the interposer may be provided with irregularities so as not to slip with the cylindrical body.

As the material of the cylindrical body, a fastening body can be obtained by using a mounting base and using synthetic resin or the like in addition to metal.

In conventional strike anchors, cut anchors and the like, since the tubular body is difficult to wedge into one place of the side wall of the hole of the mounting base, if the mounting base becomes weak, for example,
When blocks or old concrete are used, they are easily damaged by strike anchors and cut anchors, and strike anchors and cut anchors cannot be used.

Further, the use of them may cause serious defects.

When a strike anchor, a cut anchor, or the like is attached to the hole of the mounting base, there is a play in the dimensional difference between the hole and the outer diameter. As the strike anchor and the cut anchor are once attached, they easily come off the attachment base.

According to the fastening body of the present invention, the tubular body is expanded from the deep portion and the shallow portion of the side wall of the hole of the mounting base such that at least both ends of the tubular body are the side walls of the mounting base. Since the fixed portion of the tubular body is crimped by the screw action of the fastening body, there is no backlash between the tubular body and the mounting base, so the fastening body is firmly fixed to the mounting base.

Further, if an application example of the fastening body of the present invention is shown,
To prevent the mounting member from directly contacting the threaded portion of the connecting shaft, insert the collar between the rotating shaft and the mounting member by engaging the screw of the connecting shaft and then mounting the mounting member to the mounting base with the tightening ring. It is also possible.

To simplify the structure described in paragraph (0083), as shown in FIG. 8 or 20, the fastening wheel and the collar are integrally provided so as to engage with the coupling shaft and exert the fastening function. By providing the protruding portion 59 on the tightening ring D, the number of parts can be reduced, and the tightening ring can also tighten the mount member so that the mount member can be attached to the mounting base so that the mount member does not come into direct contact with the coupling shaft. It is a thing.

According to this fastening body, it is possible to easily use any material for the mounting base, for example, soft wood, synthetic resin, aluminum or the like. The field of use of the body is widely used.

In this fastening body, if the fastening portion of the rotary shaft is used as a suspension portion, the tubular body can be firmly fixed to the hole wall of the mounting base body. Therefore, the fastening base body can be fixed by the fastening body without using screws. It can also be used for work such as lifting.

According to the above-described embodiment, both ends of the tubular body are expanded by the intervening body by the left screw and the right screw through which the interposing body passes through the interposing body, and the both ends of the tubular body are attached to the side wall of the mounting base. Since the two points are firmly pressed and fixed, the fastening body can be fixed so as not to come off from the mounting base.

Therefore, this fastening body exhibits a function which has not been heretofore available for this type of fastening.

Since the mounting base does not require embedding of screws, it is widely used from hard materials to soft materials, and can be used for new industrial purposes.

If only the holes are provided in the mounting base, it is possible to use the mounting base by suspending the mounting base without attaching the screws by mounting the fastening body in the holes of the mounting base.

The second embodiment of the invention will be described with reference to the drawings based on the examples. In FIG. 21, the mounting member A and the mounting member B are fastened to the mounting base X by the fastening body of the present invention.

In the drawing, reference numeral 71 is a cylindrical body made of, for example, iron, stainless steel, aluminum or synthetic resin.

A split portion 2C is formed in the tubular body 71 in the lengthwise direction of both ends thereof (the lengthwise direction of the tubular body indicates the lengthwise direction of the barrel which is perpendicular to the radial direction of the tubular body). A split portion 3C is provided. 6C is a first interposer having a conical shape and a through hole 71 provided therein, and the conical part is inserted into the right end portion of the cylindrical body 71 in the drawing. 4C is also conical and has a screw 5B inside, so that the conical part is inserted into the left end of the cylindrical body 71 in the drawing.

The coupling shaft 8B is attached to the interposition body 6C through the through hole 7A, and the interposition body 4C is screwed into the threaded portion 10C of the coupling shaft 8B through the inside of the cylindrical body 71.

When the connecting shaft 8B is rotated to one side,
Since the intervening body 4C moves in the direction of approaching the interposing body 6C by the action of the screw, both ends of the tubular body 71 are pushed and spread by the conical portion of the interposing body so as to expand from the center toward the end. Both ends of the cylindrical body 71 are pressed and fixed to the side surfaces of the holes of the mounting base.

As a result, the connecting shaft 8B is firmly fixed to the mounting base.

The mounting member A and the mounting member B are mounted on the coupling shaft 8B by mounting and tightening the tightening wheel E on the coupling shaft 8B thus mounted.

On the other hand, if the tightening ring C is removed and the coupling shaft 8B is rotated in the opposite direction to the above, the intervention body 4C similarly moves in the direction in which it separates from each other. The interposition body is disengaged, and both ends of the tubular body 71 are separated from the side surface of the hole of the mounting base.

Therefore, the fastening body can be taken out from the hole of the mounting base.

According to this structure, it is possible to obtain the fastening body which can be easily fixed to or detached from the hole of the mounting base.

According to the above-mentioned fastening body, the coupling shaft 8
When the tightening portion 11B for rotating B is rotated, the two interposing bodies 4C and 6C enter the inside of the tubular body 71 by the coupling shaft 8B, so that both ends of the tubular body 71 are connected to the tubular body 7.
1 is expanded from the central portion toward the end of the cylinder body, and the cylinder body 71 is firmly pressed and fixed to the side wall of the hole of the mounting base body X, so that the fastening body does not come out from the hole of the mounting base body X. It is attached.

FIG. 29 is an application example of FIG. 21. In order to enlarge the expanded portion of the tubular body 81 as shown in FIG. 30, split portions 2D and split portions 3D are provided at both ends of the tubular body to provide the tubular body 81 with a split portion 2D. By providing the inclined surface 32C and the inclined surface 33C that expand from the center of the cylindrical body toward both ends, the both ends in the radial direction of the inside can form the coupling shaft 8C.
The pressing portion 6B integrally provided with the cylinder does not need a conical taper surface, and the interposition body is inserted into the cylindrical body 21, so that the length of the cylindrical body in the longitudinal direction can be shortened and the cylindrical body 81 can be shortened. Both ends can be expanded.

The intervening body of this fastening body may be the pressing portion 6B provided integrally with the coupling shaft 8C. Even if the interposing body is a separate body as shown in FIG. 81, it has the function of crimping to the mounting base X of the fastening body. Is what you can get.

By providing a recess in the central portion of the tubular body 81 to make it thinner, both ends of the tubular body can be easily bent even with a small force, so that the function of attaching the fastening body can be improved.

In this way, even if the tubular body 81 is small, the tubular body 81 can be firmly pressed and fixed to the mounting base X with a large force.

Explaining an application example of the present invention, in addition to what has been described with reference to FIGS. 21 and 29, in the cylinder, various cylinders as described below can be used. .

In FIG. 33, a plurality of thin portions 57A are provided in the longitudinal direction of the tubular body 91 in the portion forming the tubular portion of the tubular body 91, and the thin portion 57A is provided from the thin portion to the tubular body 91. When both ends are expanded, the thin portion 57A is separated and both ends of the cylinder 91 are expanded, and both ends of the cylinder 91 are pressed into contact with the interposer and the mounting base and firmly fixed.

The cylinder 91 as shown in FIG. 33 is used.
For example, when it is used in a place where the mounting base has a crack, such as a stone wall, it can contact the mating wall surface with a force balanced against the side wall of the hole of the mounting base, so that it is possible to obtain a fastening body that is easily adapted to the mounting base. It is possible.

As described above, according to the present invention, the conditions under which the tubular body is mounted on the mounting base vary depending on the shape of the tubular body and how the tubular body is provided with the split portion and the thin portion.

To further explain the present invention, if the central portion in the lengthwise direction of the tubular body is formed thinner than the other portions, it becomes easier to open from the central portion of the tubular body toward both ends, and the fastening body can be easily fastened. It can also be

In order to reduce the thickness, it is also possible to form an annular recess on the inner or outer surface of the cylinder or on the inner and outer surfaces of the cylinder.

The shape of the cylindrical body is determined by the conditions of formation including the material of the mounting base, the size of the hole, the depth of the hole, and the like.

Although the cylindrical body is round in the above-described embodiments, it may be formed in a square shape.

Further, the cylindrical body is inserted between the mounting base body and the interposition body and fixed by pressure to the wall surface of the hole of the mounting base body, and is not limited to the cylindrical body as long as it has a similar function. However, other fixed materials may be used.

The shapes of the split portion and the thin wall portion provided on the cylindrical body depend on the material of the mounting base, but both ends of the cylindrical body should be firmly fixed to the side wall of the mating mounting hole. It is sufficient to set the width and length of the split portion and the thin portion that form the shape of the cylinder depending on whether or not they are pressed and fixed.

Further, in order to prevent the outer diameter surface of the tubular body from slipping when mounting the tubular body on the mounting base body and to prevent the fastening body from coming off from the mounting base body, If the outer diameter surfaces of both ends are provided with sharp irregularities or the like, the side walls of the holes of the mounting base can be embedded in the mounting base to facilitate pressure bonding.

Further, by providing a sawtooth-shaped groove having an annular unevenness toward the depth direction of the hole of the mounting base on the outer diameter surface of the cylindrical body, the cylindrical body is easily inserted into the hole of the mounting base and slips out. A tightened body can be obtained that is difficult to make.

When a material having a spring force is used for the tubular body of the present invention, both ends of the tubular body are less likely to be permanently deformed when the tubular body is used as a fastening body. Therefore, the fastening body of the present invention can be attached and detached. To facilitate.

The interposition body in which the interposition body is screwed with the threaded portion of the coupling shaft to rotate, is provided with unevenness at the portion where the both ends of the interposition body and the tubular body are joined together to prevent slippage of the interposition body. You can also

On the contrary, in order to make it easier for the pressing portion provided integrally with the coupling shaft to rotate, the pressing portion may not be provided with irregularities.

As the material of the cylindrical body, a fastening body can be obtained by using a mounting base and using synthetic resin or the like in addition to metal.

Further, according to the present invention, unless the diameter of the tip end side of the coupling shaft is made the same as the diameter of the hole of the mounting base and the diameter of the hole of the mounting member, there is rattling in the portion. And the mounting of the mounting member becomes unstable.

When these are used as the connecting shafts as shown in FIGS. 21 and 29, the play between the mounting member and the connecting shaft can be eliminated, and the diameter of the tightening portion can be freely changed or the mounting member can be mounted. There is no obstacle.

According to the fastening body of the present invention, the tubular body is expanded from the deep portion and the shallow portion of the side wall of the hole of the mounting base body so that at least both ends of the tubular body become the side wall of the mounting base body. Since the fixed portion of the tubular body is crimped by the screw action of the fastening body, there is no backlash between the tubular body and the mounting base, so the fastening body is firmly fixed to the mounting base.

According to this fastening body, it is possible to easily use whatever material the mounting base is made of, for example, soft wood, synthetic resin, aluminum or the like. The field of use of the body is widely used.

In this fastening body, if the tightening portion of the rotary shaft is used as the suspension portion, the cylinder body can be firmly fixed to the hole wall of the mounting base body. Therefore, the fastening base body can be fixed by the fastening body without using screws. It can also be used for work such as lifting.

According to the above-mentioned embodiment, the both ends of the tubular body are expanded by the tightening action of the screw through the interposition body to the coupling shaft, and the two sides of the tubular body are provided on the side wall of the mounting base. Since it is crimped, the fastening body can be firmly fixed to the mounting base so as not to come off firmly.

Therefore, this fastening body exhibits a function that has not been heretofore provided in this type of fastening.

If only the holes are provided in the mounting base, it is possible to use it for the purpose of lifting the mounting base by mounting the fastening body in the holes of the mounting base without embedding the screw.

The third embodiment of the present invention will be described with reference to the drawings based on the examples. FIG. 35 is a view showing a state in which an attachment member is fastened to an attachment base by the fastening body of the present invention, and is shown in FIG. As shown in FIG.
2 is provided so that the coupling shaft 103 of FIG. 38 is inserted from the end thereof toward the inside.

The coupling shaft 103 shown in FIG. 38 has a tapered portion 104.
I have a screw part.

A coupling body in which two members of the cylindrical body 101 are combined with the coupling shaft 103 is put in the mounting hole of the mounting base Y as shown in FIG.
The cylinder 101 is driven into the coupling shaft 103 by using.

As shown in FIG. 35, the tip portion of the split portion 102 of the tubular body 101 is expanded by the tapered portion 104 of the coupling shaft 103, and the side wall of the mounting base Y is broken and spread at the tip portion of the tubular body on the split portion 102 side. On the other hand, the cylindrical body 101 is inserted as shown in FIG. 35, and the coupling shaft 103 is attached from the mounting base Y on the split side of the cylindrical body 101 so that it cannot be pulled out.

In the mounting shown in FIG. 35, since the portion of the split portion 102 of the cylindrical body 101 is expanded by the tapered portion 104 of the coupling shaft 103 and spreads inside the hole of the mounting base body Y, it cannot be removed from the mounting base body Y. is there.

In this mounting, the cylindrical body 101 is pressed against and fixed to the taper portion 104 of the coupling shaft 103 and the mounting base Y, so that the cylindrical body 101 does not come off.

Therefore, in order to always maintain this fastening state even after fastening, the coupling shaft 103 is attached to the mounting base Y with a long length so as not to cause slack in the contact portion of the fastening portion between the tubular body and the coupling shaft. By attaching the member A to the coupling shaft 103 so that tension is always applied, it is possible to prevent the occurrence of the slack and attach the member firmly.

This fastening body can be obtained by two parts of the cylindrical body 101 and the coupling shaft 103.

Therefore, according to this fastening body, the number of parts used for fastening the mounting member can be reduced.

Referring to the drawings, the fourth embodiment of the invention will be described with reference to the drawings. In FIG. 40, a disc-shaped member 201 having a screw hole inside and a disc-shaped member 2 having a through hole 210 therein.
The both ends of the crimping plate 203 are attached to the welding 207 so that they cannot be removed.

The crimping plate 203 is attached to the frame body 204 formed as shown in FIG. 41, and the coupling shaft 205 shown in FIG. 43 is passed through the frame body to form a fastening body.

With the above construction, the central portion of the crimping plate 203 is bulged outward and bent as shown in FIG. 41, but the disc 201 and the coupling shaft 205 are screwed together by the internal screw 209. The coupling shaft 205 is rotated.

The disk-shaped 201 and the disk-shaped 202 of the frame body 204 are compressed by rotating the coupling shaft 205, and the frame body 204 is coupled in a state where the central portion of the crimping plate 203 is projected outward and bent. It can be pressed by the side wall 208 of the shaft 205 into the hole of the mounting base J.

The connecting shaft 205 of the one pushed in this way
When is rotated, the crimping plate 203 is swelled and deformed from the central portion to firmly attach to the hole of the mounting base J, and at the same time, the mounting member K can be mounted.

If the crimping plate 203 uses a spring material with little permanent deformation, the fastening state is released when the coupling shaft 205 is rotated in the direction opposite to the compression direction, and this fastening body can be removed from the mounting base J. it can.

FIG. 44 is an application example in which FIG. 40 is simplified, and the coupling shaft 205B is inserted into the two holes 210B of the one crimping plate 203B.
The rotary wheel 211 having a screw is coupled to the coupling shaft 205B to form a fastening body.

When the rotary wheel 211 and the crimping plate 203B are pressed against each other from the beginning and the coupling shaft 205B is rotated, the crimping plate 20 is rotated.
3B comes into contact with the mounting base J, and at the same time, the corner of the crimping plate 203B hits into the hole of the mounting base J so as to bite into it as described with reference to FIG. The bond axis 205B
Thus, a fastening body can be obtained in which the mounting member K can be attached to the mounting base J without coming off.

FIG. 46 shows a fastening body for mounting the mounting member M on the mounting base N in the H direction in one direction.

This fastening body is a crimping plate 203A as shown in the development view of FIG. 47 on a coupling shaft 205A having a screw 206A.
Is configured by mounting.

When the coupling shaft 205A is rotated by passing through the holes of the mounting base N and the mounting member M in the above-described structure, the crimping plate 203A is for fastening the mounting member M to the mounting base N. The fastening body seems to be simple and has a small fastening force. However, if many fastening members are used for one large mounting member, the binding force becomes strong.

Further, this fastening body is composed of a mounting base N and a mounting member M.
It has a feature that it can be used even if there is a deviation in the mounting holes.

FIG. 48 is a view showing a state in which the mounting member M is mounted on the mounting base N by using a frame body similar to that described in FIG.

When the coupling shaft 205C is screwed into the screw hole of the frame body 204C as shown in FIG. 48 and the coupling shaft 205C is rotated, the crimping plate 203C is bent and deformed so as to expand outward.

In this way, the crimping plate 203C fixed in the hole of the mounting base N and deformed to the extent that the crimping plate 203C does not rotate is further pressed into the hole of the mounting base N and pushed to rotate the coupling shaft 205C. And disk-shaped 201C and disk-shaped 20
Since it is compressed between 2C, the pressure plate 203C is bent so as to expand.

Therefore, the pressure force to bond the mounting base N and the mounting member M is increased by the crimping plate 203C, and the mounting base N and the mounting member M can be firmly mounted.

FIG. 49 is an application example of a crimping plate, and FIG. 49 is a development view of the crimping plate. When the crimping plate is bent as shown in FIG. A fastening body can be obtained.

FIG. 51 shows a state in which when the crimping plate is pressed against the hole of the mounting base or the mounting member, the corners of the crimping plate hit the periphery of the hole and the crimping plate becomes difficult to move.

In the above description, the crimping plate is a plate, but it may be a supporting piece or may include a supporting piece, and how wide the width and thickness of the crimping board are to be provided is how. It depends on whether it is used for various purposes.

A fastening body as shown in FIGS. 40 and 48 is, for example,
It has a feature that it can be used in places such as wood, synthetic resin, metal, concrete, etc. and can be used for simple attachment or permanent attachment.

The frame body shown in FIGS. 40 and 48 may be integrally formed into a round shape or a polygonal shape, and the number of crimping plates provided on the frame body may be set depending on the intended use. .

The material of the fastening body is made of metal or synthetic resin.

[0161]

As described above, according to the present invention, not only concrete but also other materials are fixed to the mounting base without using screws and firmly fixed by pressure so as not to come out. It is possible to provide a fastening body that can be easily attached and detached.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of essential parts showing a state in which a fastening body of the present invention is attached to a mounting base.

FIG. 2 is a front view showing the cylindrical body of FIG.

FIG. 3 is a side view of the cylindrical body of FIG.

FIG. 4 is a main part view showing the interposition body of FIG. 1;

FIG. 5 is a main part view showing the interposition body of FIG. 1;

6 is a front view showing the coupling shaft of FIG. 1. FIG.

FIG. 7 is a cross-sectional view of an essential part showing an application example of the fastening body of FIG.

FIG. 8 is a cross-sectional view of essential parts showing an application example of the tubular body of the fastening body of the present invention.

9 is a front view of the cylindrical body of FIG.

FIG. 10 is a side view of the cylindrical body of FIG.

11 is a front view of the interposition body of FIG. 8. FIG.

FIG. 12 is a side view of the interposer of FIG. 11.

13 is a front view of the interposition body of FIG. 8. FIG.

FIG. 14 is a side view of the interposer of FIG.

FIG. 15 is a front view showing the coupling shaft of FIG.

FIG. 16 is a front view showing another application example of the tubular body of the fastening body of the present invention.

17 is a side view of the cylindrical body of FIG.

FIG. 18 is a front view showing another further application example of the tubular body of the fastening body of the present invention.

FIG. 19 is a side view of the cylindrical body of FIG.

FIG. 20 is a cross-sectional view of a main part of a fastening body showing an example of the fastening body of the present invention in which a concave portion is provided in a tubular body.

FIG. 21 is a cross-sectional view of essential parts showing a state in which another embodiment of the fastening body of the present invention is mounted on a mounting base.

22 is a front view showing the cylindrical body of FIG. 21. FIG.

23 is a side view of the cylindrical body of FIG.

FIG. 24 is a front view of the left interposer of FIG. 21.

FIG. 25 is a side view of the left interposer of FIG. 21.

FIG. 26 is a front view of the right interposer of FIG. 21.

FIG. 27 is a side view of the right interposer of FIG. 21.

28 is a front view showing the coupling shaft of FIG. 21. FIG.

FIG. 29 is a cross-sectional view of essential parts showing an application example of the fastening body of FIG. 21.

30 is a front view of the cylindrical body of FIG. 29. FIG.

31 is a side view of the cylindrical body of FIG. 29. FIG.

32 is a front view showing the coupling shaft of FIG. 29. FIG.

FIG. 33 is a front view showing an application example of the tubular body of the fastening body of the present invention.

FIG. 34 is a side view of the cylindrical body of FIG. 33.

FIG. 35 is a cross-sectional view of essential parts showing another example of the fastening body of the present invention.

36 is a front view of the cylindrical body of FIG. 35.

FIG. 37 is a side view of the cylindrical body of FIG. 36.

38 is a front view showing the coupling shaft of FIG. 35. FIG.

FIG. 39 is a cross-sectional view of an essential part showing the fastening process of the fastening body of the invention in FIG. 35.

FIG. 40 is a main-portion cross-sectional view showing an application example of the fastening body in FIG. 21;

41 is a front view of the frame body of FIG. 40. FIG.

42 is a side view of the frame body of FIG. 41. FIG.

43 is a front view of the coupling shaft of FIG. 40. FIG.

44 is a cross-sectional view of a main part showing an application example (1) of the fastening body of FIG. 40.

45 is a front view of the crimp plate of FIG. 44.

FIG. 46 is a sectional view of a key portion showing an application example (2) of the fastening body of FIG. 40.

47 is a front view of the crimp plate of FIG. 46. FIG.

48 is a main-portion cross-sectional view showing an application example (3) of the fastening body in FIG. 40. FIG.

FIG. 49 is a front view showing an application example of the pressure bonding plate of FIG. 48.

50 is a view showing a state where the crimping plate of FIG. 49 is bent and attached to the coupling shaft.

FIG. 51 is a view showing a state where the corner of the crimping plate hits the mounting base and bites into it.

FIG. 52 is a cross-sectional view of essential parts showing a cut anchor which is a conventional fastener.

[Explanation of symbols]

1.21.31.35.41.51.61.71.71.8
1.91.101.111A: Cylindrical body 2.2A. 2B. 2C. 2D. 102: Split portion 3.3A. 3B. 3C. 3D: Split portion 4.4A. 4B. 4C. 4D: intervention body 5.5B: screw portion 6.6C: intervention body 6B: pressing portion 7: through hole 8.8A. 8B. 8C. 103: bond axis 10.10A. 10C. 10D: Threaded portion 11.11A. 11C: tightening portion 32.32C: inclined surface 33.33C: inclined surface 57.57A: thin portion X. Y: Mounting base A. B: Mounting member C. D. E: Tightening wheel 201.201C: Disc shape 202.202C: Disc shape 203.203A. 203B. 203C. 203D. Two
03E: Crimping plate 204.204C: Frame 205.205A. 205B. 205C. 205D: coupling shaft 206.206A: screw portion 207: welding 208.208A. 208B. 208C: Side wall 209.209A: Threaded portion 210.210B. 210D: Hole 211: Rotating wheel J. N: Mounting base K. M: Mounting member

Claims (15)

[Claims] 1. Inside of both ends of a tubular body provided with a split portion in the longitudinal direction of the tubular body, two interposers having a left screw and a right screw are respectively provided to the left screw and the right screw of a coupling shaft. A fastening body characterized by fitting and rotating the coupling shaft so that both ends of the tubular body are expanded so as to abut against the inner wall of the hole of the mounting base. 2. Inside of both ends of a tubular body provided with a thin portion in the lengthwise direction of the tubular body, two interposers having a left screw and a right screw are provided respectively for the left screw and the right screw of the coupling shaft. Fit,
A fastening body, characterized in that the coupling shaft is rotated so that both ends of the tubular body are expanded so as to come into contact with the inner walls of the holes of the mounting base body. 3. A fixing shaft is attached to an inner wall of a hole of a mounting base by screwing a coupling shaft also having a right screw and a left screw into two interposing bodies having a right screw and a left screw, and rotating the coupling shaft. A fastening body that acts so as to abut. 4. After mounting an interposer on the threaded portion of the coupling shaft through the through hole of the interposer, further mounting a tubular body provided with a split portion or a thin portion in the longitudinal direction of the tubular body on the coupling shaft. , The threaded portion of the interposition body is screwed into the threaded portion on the tip side of the coupling shaft, and the coupling shaft is rotated to expand both ends of the cylindrical body so as to abut the inner wall of the hole of the mounting base. Fastened body characterized by that. 5. A tubular body provided with a split portion or a thin portion in the longitudinal direction of the tubular body is attached to the screw portion and the pressing portion of the coupling shaft,
The threaded portion of the interposition body is screwed into the threaded portion on the tip side of the coupling shaft, and the coupling shaft is rotated so that both ends of the cylindrical body are expanded so as to abut the inner wall of the hole of the mounting base. Fastened body characterized by. 6. An interposition body having a through hole is passed through a coupling shaft, an interposition body having a threaded portion facing the interposition body is screwed into the coupling shaft, and the rotary shaft is rotated. A fastening body characterized in that the fixed body is caused to act so as to come into contact with the inner wall of the hole of the mounting base. 7. A pressing portion, which is integrally provided with the coupling shaft, faces the pressing portion,
A fastening body characterized by screwing an interposer having a threaded portion inside to a coupling shaft and rotating the rotary shaft to cause the fixed body to come into contact with the inner wall of the hole of the mounting base. . 8. The fastening body according to claim 1, wherein the shape of the inside of the tubular body in the radial direction is an inclined surface that widens from the central portion of the tubular body toward both ends. . 9. The fastening body according to claim 1, wherein the central portion is thinned or a concave portion is provided in the central portion so as to bend from the central portion in the longitudinal direction of the tubular body. 10. A projection provided on a tightening ring is interposed between the threaded portion and the mounting member so that the mounting member does not come into contact with the threaded portion of the coupling shaft. The fastening body according to claim 3 and claims 8 to 9. 11. A fastening body for mounting a mounting member on a mounting base, wherein the thickness of the connecting shaft diameter of the portion that contacts the mounting member can be set to a desired thickness. Item 9. A united article with a tightening. 12. The coupling shaft is inserted into the conical taper portion of the coupling shaft having the conical taper portion on the coupling shaft and the threaded portion at the other end from the split portion side of the tubular body provided with the split portion. Insert the object into the mounting base, punch in the cylinder to expand the split side of the cylinder, and lengthen the coupling shaft so that the force that press-fits the cylinder to the mounting base can hold it without slack. Fastened body characterized by having done. 13. A screw portion of a coupling shaft is screwed to a disc-shaped screw portion forming a frame body by a crimping plate which is formed by coupling a disc-shaped portion having a screw hole and a disc-shaped portion having a through hole therein. Then, the fastening body is characterized in that the crimping plate is pressed into contact with the hole of the mounting base. 14. A screw hole is provided in one of the crimping plates, a coupling shaft is screwed into the crimping plate, the other side of the crimping plate is brought into contact with the side wall of the coupling shaft, and the central portion of the crimping plate is set in the hole of the mounting base. Fastened body characterized by pressure contact. 15. A crimping plate is provided with holes at both ends thereof, the coupling shaft is passed through the crimping plate, one end of the crimping plate abuts a side wall of the coupling shaft, and a rotary wheel is provided on the tip side of the other coupling shaft. A fastening body characterized in that the central portion of the crimping plate is pressed into contact with the hole of the mounting base.