JP2008190557A5 - - Google Patents

Description

Anchor for fastening member and fastener

This invention is mainly used for fastening a member that can be used for a building or an installation base on a wall or a floor, or a member that can attach attachment members to each other , in a civil engineering building and an industrial-related foundation attachment location. The present invention relates to an anchor and a fastener .

  Conventionally, as representative techniques close to the present invention, there are Patent Documents 1 to 3 below.

As shown in the patent document 1, the expansion anchor is simply the same as the prior art in that it is expanded by inserting a pin having a conical tip at the inside of the cylindrical body with one end thickened. It is a spread anchor.

In Patent Document 2 , a shaft having one end of a shaft as a screw portion and the other end having a conical shape as a large diameter is placed inside the tube, and the tube is tightened to compress the tube with the screw portion of the shaft. Although this is an expansion anchor that causes the slit portion of the body to expand at the tapered shaft portion, this technique is also merely a conventional expansion anchor.

In Patent Document 3, a portion provided with a slit at the center of the end portion of the cylindrical body is compressed and expanded, but since this is fastened by an expansion and contraction action by screw fitting, the screw portion is made of a hard material. There is a drawback that the expansion capability is small in the structure and structure that must be used.

ACT 7-4913 JP-A-10-259812 JP 58-88217 A

  Conventionally, the expansion capacity range of the expansion anchor used for concrete or the like is such that only the diameter of the diameter of the hole of the cylinder is made a business trip to the wall surface outside the cylinder. Therefore, in the case where the material of the mounting base is weak, since the protrusion is small, there is a case where the expansion range is reduced and the mounting base is pulled out.

  In addition, when the conventional expansion anchor is expanded and attached, when the mounting base is concrete or the like, the hole of the mounting base and the diameter of the expansion anchor do not match. The force to stop was weak and sometimes pulled out.

Therefore, an object of the present invention is to provide a member fastening anchor that can increase the expansion capacity of the cylinder body as compared with the conventional fastening, and can be easily fastened directly to the hole of the mounting base such as on the wall or floor . Another object of the present invention is to provide a fastener that can be firmly and securely fastened with a simple structure for fastening a member to be attached from one side .

According to the first invention of the above object, there is provided one coupling portion that is coupled to the expanded portion of the cylindrical body with a small cross-sectional area that is divided into a shaft body and a piece shaft from a certain position in the length direction of one shaft. Alternatively, a plurality of the shaft bodies and the piece shafts provided with the piece shafts may be driven and pushed to break from the coupling portion, and the shaft body and the piece shafts may be overlapped and inserted into the expanded portion of the cylindrical body. And it is achieved by the anchor for member fastening characterized by expanding the expansion part of the cylinder.

According to a second aspect of the present invention, in the first aspect, when the shaft body and the piece shaft are formed by providing a plurality of coupling portions on one shaft, the coupling portion in the front end direction is connected to the rear coupling portion. This is achieved by a member fastening anchor characterized by having a small cross-sectional area as compared with the component part.

The third invention of the above object is a coupling in which holes are formed in a mounting base such as a wall or a floor with a small cross section divided into a shaft body and a piece shaft from a certain position in the length direction of one shaft. One or a plurality of parts are provided, the shaft body provided with the shaft body and the piece shaft is broken from the coupling portion by driving or pushing, and the shaft body and the piece shaft are overlapped and inserted, and the shaft This is achieved by a member fastening anchor characterized in that the body consists of a single shaft that can be attached to a wall of a hole in a mounting base such as a wall or a floor and to which a mounted member can be attached .

According to a fourth aspect of the present invention, there is provided one or a plurality of piece shafts formed by tapering at least one side of a shaft independent of the shaft body from the beginning toward the tip at the expanding portion of the cylindrical body. In between, insert a shaft body that tapers into a tapered shape toward the tip of the shaft, and inserts it by pushing, and the piece shaft and the shaft body overlap and are inserted into the expanded portion of the cylindrical body. This is achieved by a member fastening anchor characterized by expanding the expanded portion of the cylindrical body .

According to a fifth aspect of the present invention, a piece shaft is formed in a hole of a mounting base such as a wall or a floor so as to taper at least one side of a shaft independent of the shaft body from the beginning toward the tip. One or a plurality of shafts are put in between, and a shaft body formed in a taper shape toward the tip of the shaft is inserted between them by driving or pushing, and the piece is inserted into a hole of a mounting base such as a wall or a floor. The shaft and the shaft body are inserted so as to overlap each other, and the piece shaft and the shaft body are inserted into the side wall of the hole of the mounting base such as a wall or a floor, and the shaft body and the piece shaft are formed. This is achieved by a member fastening anchor characterized by the following.

According to a sixth aspect of the present invention, in order to fasten the member to be attached from one side, the length direction of one shaft is provided inside the expanded portion of the cylindrical body with one side of the cylindrical body as a closed wall portion. One or a plurality of coupled portions having a small cross-sectional area divided into a shaft body and a piece shaft from a certain position are provided, and the shaft body and the shaft body provided with the piece shaft are connected by driving or pushing. This is achieved by a fastener that is ruptured from the forming portion and the shaft and the piece shaft are overlapped and inserted into the expanded portion of the cylindrical body to expand the expanded portion of the cylindrical body. .

In the seventh invention of the above object, in order to fasten the attached member from one side, it is independent from the shaft body from the beginning inside the expanded portion of the cylindrical body with one side of the cylindrical body as a closed wall portion. One or more piece shafts that taper at least one side of the shaft toward the tip are inserted, and a shaft member that is tapered toward the tip of the shaft is inserted between them. Alternatively, it is achieved by a fastener that is inserted by pushing and that the piece shaft and the shaft body are overlapped and inserted into the expanded portion of the cylindrical body to expand the expanded portion of the cylindrical body.

In the present invention, a coupling portion is formed in a hole in the mounting base via a cylinder or in a hole in the mounting base with a portion in the length direction of one shaft having a small cross-sectional area. One or more are provided, and the one that forms the shaft body and the piece shaft is inserted, or the shaft body is overlapped with the one that contains the independent piece shaft from the beginning. Then, they are inventions of an anchor for fastening a member having a large expansion capability capable of biting into the side wall of the hole of the mounting base and expanding the side wall of the hole of the mounting base.

Therefore, one of the cylinders is an opening into which the shaft body is inserted, and the other may be an opening. However, the present invention can be realized even if it is a closed wall. What is necessary is just to use properly as an anchor for member fastening and a fastener which are separated.

  In this member fastening anchor, the shaft body and the piece shaft may be coupled so that they can be separated from each other. From the beginning, they may be independent as a single body. In the coupling method, the shaft body and the piece body may be made of a single metal, and the coupling portion may be coupled by molding a synthetic resin, and is not necessarily the center of the shaft, but can be separated. If the role of the piece axis can be obtained, the present invention is established.

  Since this member fastening anchor has a wide expansion range and does not come off the mounting base, it is suitable for mounting on buildings and devices in various civil engineering and industrial foundation mounting locations.

  Therefore, the expansion anchor which can compensate the fault of the conventional expansion anchor is obtained.

Like embedding anchors from the beginning like conventional embedding anchors, using the anchors for fastening members according to the present invention will prevent them from coming out even if force is applied, and even if they are used for construction work, etc. The invention which becomes a suitable anchor for member fastening is obtained.

As shown in Patent Document 1 as a typical example of the conventional expansion anchor closest to the present invention, the expansion range of the cylindrical body is a wall thickness obtained by subtracting the width of the slit from the diameter of the hole of the cylindrical body at the maximum. This part was to make a business trip to the wall surface outside the cylinder. Therefore, in the case where the material of the mounting base is weak, since the protrusion is small, there is a case where the expansion range is reduced and the mounting base is pulled out from the hole of the mounting base.

  The conventional cylinder expanding capability is such that the thickened portion provided inside the cylinder pushes the cylinder outward by the outer diameter of the shaft that has entered the cylinder, and expands.

Therefore, the conventional expansion anchor expands the projecting portion of the thick part inside the cylinder and becomes an expansion range, so the tip of the wall becomes thin when driven, so the deformation is significantly reduced and the expansion range becomes small. Furthermore, since the structure is complicated, many manufacturing steps are required and the production cost is high.

  Further, since the cylindrical body is divided, the projecting portion of the cylindrical body is reduced by that amount, so that the expansion range of the cylindrical body is reduced.

  In the present invention, a protruding portion may be provided inside the cylindrical body, or a single shaft is coupled to the inside of the cylindrical body without providing a thick portion inside the cylindrical body. By cutting and overlapping and entering, it is possible to obtain a member fastening anchor that has a simple structure and an excellent expansion capability with a large expansion range.

Furthermore, even if this anchor for anchoring the member does not use a cylindrical body, by cutting one shaft and overlapping the shaft body and the piece shaft, it bites into the side wall of the hole of the mounting base such as a wall or floor, By preventing one shaft from coming out of the hole in the mounting base, the structure that allows the mounting member to be mounted on the mounting base such as a wall or floor with a single shaft is simplified, and the expansion capability has a wide expansion range. An excellent anchor for fastening a member can be obtained.

Tapering at least one side toward the tip in a hole in a mounting base such as a wall or floor, or in a cylindrical hole in which a cylindrical body is placed in a hole in a mounting base such as a wall or floor. It is also possible to insert one or a plurality of piece shafts whose overall length is larger than the diameter of the hole of the cylindrical body, and insert a shaft body tapered in a tapered shape toward the tip between them by driving or pushing. It can also be a member fastening anchor.

In attaching the member to be attached from one side of the hole provided in the member to be attached, a portion in the length direction of one shaft is provided in the expanded portion of the cylinder having the one side of the cylinder as a closed wall portion. By providing one or a plurality of coupled portions coupled with a small cross-sectional area, the shaft body provided with the shaft body and the piece shaft is driven or pushed to break from the coupled portion, and the expanded portion of the cylindrical body It is also a member fastening anchor by overlapping the shaft body and the piece shaft .

Alternatively, in attaching the member to be attached from one side of the hole provided in the attachment member, at least one side that is independent from the beginning toward the distal end is set to the expanded portion of the cylindrical body having one end of the cylindrical body as a closed wall portion. It is also an invention of a fastener in which one or a plurality of tapered taper shafts are provided and inserted, and a shaft body tapered in a tapered shape toward the tip is inserted or pushed in. .

Therefore, this member fastening anchor and fasteners expansion capability rather large to simplify the structure, and can be mass produced and inexpensive, attached to buildings and equipment, such as in basic mounting position of the various civil engineering and industrial relations It becomes a member fastening anchor and fastener suitable for what to do.

Expansion dowel Patent Document 1 past, Patent Document 2, the one expansion capacity of the cylinder as in Patent Document 3 was small, this invention, in the shape overlap off one axis is It is possible to obtain a member fastening anchor and a fastener that can compensate for the drawbacks of the conventional anchors that can solve the conventional drawbacks that can be used in various applications by increasing the spreading capability.

The present invention (hereinafter in this invention, the axis-perpendicular direction of the outer shape with respect to the length direction refers to that established by the round or polygonal shape, etc.) axis inside the hole when entering overlap a plurality This is because if a plurality of overlapping dimensions are larger than the inner diameter of the hole, the diameter of the hole is enlarged and the shaft that has entered does not come out of the hole.

  In the first aspect of the present invention, a shaft is inserted into a mounting base made of a wall or a floor or the like through a shaft or a cylinder, and the shaft is cut and overlapped so that a hole in the mounting base is formed. It is an invention of a member fastening anchor that can be expanded and the shaft bites into the mounting base so that the shaft can be attached to the mounting base.

The second of the present invention, taking an axis expanding one cylinder from the side of the attachment member, an invention of a fastener for fastening the mounted member by expanding the expanding portion of the tubular body.

Since the anchor and fastener for fastening members according to the present invention have a wide expansion range, once they are attached to the mounting base, they cannot be removed from the mounting base. It is suitable for things.

  Hereinafter, the present invention will be described with reference to the accompanying drawings.

In FIG. 1, when attaching the attachment member A and the attachment member B to the attachment base X, a screw portion 10 is provided on the upper portion of the cylindrical body 1, and a nut 11 that is screwed into the screw portion 10 is provided. A slit 4 is provided at the other end of the cylinder 1. In such an inner part 9 of the cylindrical body 1, a coupling part 7 is provided in which a portion in the length direction of one shaft is coupled with a small cross-sectional area, and a shaft body 2 and a piece shaft 5 are formed. It is a figure which shows putting the axis | shaft of a book and comprising the member fastening anchor.

In the member fastening anchor configured as described above, the cylindrical body 1 is inserted into the mounting base X and the mounting member A and the mounting member B are mounted. If the shaft body 2 to be formed is inserted and driven to strike the head 13 of the shaft body 2, as shown in FIG. 2, the piece shaft 5 is broken from the coupling portion 7 and separated from the shaft body 2 and the piece. The shaft 5 slides with the tapered surfaces in contact with each other, and the shaft body 2 and the piece shaft 5 are overlapped to expand the expanding portion of the cylindrical body 1.

  Thus, the cylindrical body 1 is attached to the hole of the attachment base X. The attachment member is attached by the cylinder 1 attached to the attachment base X, and the shaft body 2 bites into the cylinder 1 at this time, so that it cannot be removed from the attachment base X.

  At this time, the tapered shape that forms the tip of the shaft body 2 and the piece shaft 5 in a conical shape may be formed in various shapes to facilitate the expansion of the expanded portion of the cylindrical body 1. The shaft body may have a shape as shown in FIGS. 21 and 22.

As a result, when the shaft 2 and the piece shaft 5 slide into and overlap each other inside the hole, the overlapping size is larger than the inner diameter of the hole, so that the diameter of the hole in the cylindrical body 1 is enlarged and expanded. At the same time, the cylinder 1 is bitely attached to the mounting base X. Moreover, the side surface of the corner | angular part which hits the bottom part of the piece axis | shaft 5 is also made into a cone shape, and the shaft body 2 and the piece axis | shaft 5 also make it easy to overlap.

In this invention, when attaching the attachment member A and the attachment member B to the attachment base X made of a wall or a floor, the length of one shaft is directly provided in the hole of the attachment base X without providing the cylindrical body 1. Fastening a member with a single shaft by breaking and separating from the coupled portion 7 coupled with a small cross-sectional area at a certain direction so that the shaft body 2 and the piece shaft 5 overlap each other. An anchor can also be obtained.

  Even in such a case, the shaft body 2 and the piece shaft 5 are fixed by pressure bonding, and the periphery thereof bites into the side wall of the hole of the mounting base X, so that the shaft body 2 cannot be removed from the hole of the mounting base X.

  Thereby, the anchor for member fastening which can attach the attachment member A and the attachment member B to the attachment base body X by one axis | shaft can be obtained.

Their expansion capability is determined by the ratio of the diameter of the shaft body 2 and the piece shaft 5 to the size of the hole of the mounting base X or the diameter of the hole of the cylindrical body. The thicker the thicker, the greater the spreading ability.

  Even in the case where the cylindrical body 1 is provided, the shaft body 2 and the piece shaft 5 bite into the expanded portion of the cylindrical body 1 to expand the cylindrical body 1 and the cylindrical body bites into the mounting base X. The member fastening anchor that increases the expansion capability of 1 is established.

When a member fastening anchor consisting of a single shaft is bent into the piece shaft part coupled to the shaft body,
It is possible to obtain a member fastening anchor capable of generating an elastic restoring force by increasing the ratio of the piece axis around the hole.

FIG. 7 shows an application example (No. 1) of the present invention. A shaft body 22 consisting of a single shaft entering the cylindrical body 20 has a stepped portion 24 and is provided with a thin shaft body 26. The shaft body 26 has a coupling portion 27 and a piece shaft 28, and further has a coupling portion 29 and a piece shaft 30. The coupling portion is broken from the coupling portion by driving. The cross-sectional area becomes smaller toward the tip of the shaft body 22. Therefore, the coupled portion 29 has a smaller cross-sectional area than the coupled portion 27 , and the smaller cross-sectional area breaks first.

The cylindrical body 20 is attached to the hole of the mounting base X as described above, and a piece shaft coupled to the shaft body 22 at the coupling portion is placed inside the cylindrical body 20, and the head 33 of the shaft body 22 is placed. As shown in FIG. 8, the piece shaft 30, the piece shaft 28, and the shaft body 26 are broken and separated from the coupling portion and overlapped with each other, and at the same time, the expanded portion of the slit 4 of the cylindrical body 20 is enlarged. The cylinder 20 is opened and attached to the attachment base X.

  Thereafter, the attachment member A and the attachment member B are attached to the threaded portion 10 side of the cylindrical body 20.

  Accordingly, if the shaft body and the piece shaft are provided with a large diameter in such a structure, the spreading ability can be increased, and even if the pieces have different diameters. The member fastening anchor is established.

As for the shapes of the shaft body and the piece shaft, a coupling portion may be provided so that the shaft diameter is divided into two in a tapered shape as shown in FIGS. The shape of the shaft is square or has various things, such as round are conceivable, and any case leave off from coupling portion of the shaft and the frame shaft by typing by hitting the shaft be a shaft member It is preferable that the frame axes have a shape that is easy to overlap and that the shaft body does not come out of the hole of the mounting base X after fastening.

  The reason why the diameter of the coupled portion provided with a plurality of coupled portions is increased toward the driving side is that the diameter details are cut first by driving and then the diameter is cut. In this way, the shaft body can be easily driven.

  FIG. 12 shows an application example (No. 2) of the present invention. In order to expand the expanded portion of the cylindrical body 40, the piece shaft 46, the piece shaft 47, the piece shaft 48, and the piece shaft 49 are separated from the beginning. Are independent.

In this fastener, first, the cylindrical body 40 is put in the hole of the mounting base, and the piece shaft 46, the piece shaft 47, the piece shaft 48, and the piece shaft 49, which are independent from the beginning, are put therein, and the gap A thin shaft body 45 made up of the shaft body 44 is inserted into 41, and the head of the shaft body 44 is hit to expand the expanded portion of the cylindrical body 40.

  In practical use, if the shape of the piece shaft 46, the piece shaft 47, the piece shaft 48, and the piece shaft 49 is tapered only on one side, the piece shaft is mistakenly inserted into the mounting hole. This is also conceivable, and the piece axis may be tapered at both ends in the same manner.

Therefore, according to the present invention, one or a plurality of piece shafts are formed in the cylindrical body provided with the expanded portion, which are formed to be tapered from at least one side toward the tip, independently from the shaft body. In the meantime, the present invention can also be realized by a member fastening anchor in which the shaft body is formed in a taper shape toward the tip, and the shaft body is press-fitted by pushing or pushing.

The present invention also provides one or a plurality of piece shafts formed in a hole of a mounting base such as a wall or a floor, which are tapered from at least one side toward the tip and are tapered from the beginning. The present invention can also be realized by a member fastening anchor in which the shaft body is formed in a taper shape toward the tip, and the shaft body is press-fitted or pushed in between.

  If it does in this way, since the expansion capability is wide and the expansion part of the cylindrical body can be expanded evenly on the outer periphery, it is superior to the conventional expansion anchors of Patent Document 1, Patent Document 2, and Patent Document 3. This is a member fastening anchor having the above characteristics.

  In FIG. 12, the case where the outer shape of the piece axis is hexagonal and four pieces are provided has been described. However, the present invention is valid even when one piece piece shaft is provided, and the shape of the piece axis can be round or square. The invention is valid.

FIG. 14 is an application example (part 3) of FIG. 1, in which one side of the cylindrical body 50 on the slit 14 side is a closed wall 51, and the fastener of FIG. 15 is a fastener that is used when the frame shaft 58 formed of the shaft body 54 enters the mounting base X as shown in FIG. 15 inside the cylindrical body 50 in the lengthwise direction of the hole. It will be.

FIG. 16 shows an application example (No. 4) of the present invention. In order to attach two attachment members A and B from one direction, a cylindrical body 60 is provided, and a shaft body 64 is provided inside the cylinder body 60. put the frame shaft 66 having a Coupled portion 67, in which to obtain a fastener for fastening two sheets of the attachment member.

In attaching the attachment member from one side of the hole provided in the attachment member, the shaft body 64 is smaller than the outer diameter of the shaft body 64 inside the cylinder body 60 having one end of the cylinder body 60 as the closing wall portion 61. A coupling portion 67 having a cross-sectional area is provided, and the coupling portion 67 is provided with a piece shaft 66 that allows the shaft body 64 to be easily broken by driving or strong pushing . During the so as to overlap with the frame axis 66, by becoming put by the shaft 64 driving or pushing with the tapered tip, the fastener of the present invention is made up.

  A plurality of piece shafts entering the expanding portion of the cylindrical body may be provided from one shaft, or the present invention can be realized even if they are independent from the beginning.

  In order to put the piece axis independent from the beginning into the cylinder, at least one end of the piece axis is tapered toward the tip so that the total length is longer than the diameter of the hole of the cylinder. It may be.

In the previous inventions, the coupling method of the coupling part may be a metal made of a single shaft, and the coupling part may be coupled by molding a synthetic resin. Even if the centers of the shafts are not necessarily coupled, the present invention can be realized if the shaft body and the piece shaft can be used when separated.

This invention is in attaching the mounting member from one side of the hole provided in the mounting member, the inside of the expansion portion of one closed side wall portion and the cylindrical body of the tubular body, the length direction of one axis One or a plurality of coupled portions that are coupled with a small cross-sectional area at a certain position are provided, and a shaft body provided with a shaft body and a piece shaft is broken from the coupled portion by driving or pushing, It is also the invention of the fastener by the said shaft body and the said piece axis | shaft overlapping and entering into an expansion part .

Or, in attaching the one mounting from the side member of the hole provided in the mounting member, the inside of the expansion portion of one side closure wall portion and the cylindrical body of the tubular body, the tip of at least one independent from the beginning One or a plurality of piece shafts tapered in a taper direction toward the tip, and further, by a fastener by inserting a shaft body tapered in a taper shape toward the tip by pushing or pushing. This invention is valid.

In the above-described invention, the description has been given so far about the case where the cylindrical body is provided with the slit, but without providing the cylindrical body with the slit from the beginning, when the shaft body and the piece axis are cut and overlapped into the cylindrical body, If the cylindrical body is expanded or cracked, the member fastening anchor and fastener of the present invention can be realized without providing a slit in the cylindrical body from the beginning.

Therefore, according to the anchor and fastener for fastening members according to the present invention, the range of use is wide. Whether the material for anchors and fasteners for fastening members is made of metal according to its use or whether it is made of synthetic resin. Depending on the fastening conditions of the members at the time, when used as shown in FIG. 16, the use of synthetic resin makes it possible to obtain a member fastening anchor and fastener that can be effectively fastened.

Since heretofore member fastening anchors and fasteners in the invention can be manufactured by a synthetic resin, although the radial shape of the shaft and the frame axis may be in various shapes are different, as member fastening anchors and fasteners The shape is set so as to achieve the above function, and the production cost is set to be low.

  In the present invention, the cylindrical body can be easily manufactured at a low cost even from a metal pipe or the like, and further, the inner surface of the hole of the cylindrical body is tapered to increase the size of the expanded portion of the cylindrical body. A thickness may be provided, and the present invention can be established even if the surfaces of the outlet side and the outlet side are different in shape at that time.

  In the inventions so far, it is also good to provide a coupling portion that couples the piece shafts from one shaft body in order to align the direction of the piece shafts in the actual site due to inconvenience in handling.

According to the present invention, the structure is simple, the member fastening anchors and fasteners can be made of metal or synthetic resin, and the range of use as the member fastening anchors and fasteners is wide, and at low cost. It is possible to obtain a member fastening anchor and fastener that can be mass-produced.

The principal part sectional drawing which shows one Example of the anchor for member fastening of this invention. The principal part sectional drawing which shows the use condition of the anchor for member fastening of FIG. The front view of the cylinder of FIG. The left view of the cylinder of FIG. The right view of the cylinder of FIG. The front view of the shaft of the anchor for member fastening of FIG. Sectional drawing of the principal part of the anchor for member fastening which shows the application example (the 1) of FIG. FIG. 8 is an essential part cross-sectional view showing a usage state of the member fastening anchor of FIG. 7. Sectional drawing of the YY part of the anchor for a member fastening of FIG. The front view which shows the shaft of the anchor for member fastening of FIG. The right view of the anchor for member fastening of FIG. The principal part sectional drawing of the anchor which shows the application example (the 2) of the anchor for member fastening of this invention. Sectional drawing of the ZZ part of the anchor for member fastening of FIG. Sectional drawing of the principal part of the fastener which shows the application example (the 3) of the anchor for member fastening of this invention. The principal part sectional drawing which shows the use condition of the fastener of FIG. Sectional drawing of the principal part of the fastener which shows the application example (the 4 ) of the anchor for member fastening of this invention. The front view of the cylinder of FIG. The right view of the cylinder of FIG. The front view of the shaft body of the fastener of FIG. The right side view of the cylinder of Drawing 16 The figure which shows the example 1 of application which shows the state which couple | bonds the piece axis | shaft which consists of the axis | shaft body of the anchor for member fastening of this invention, and a fastener . The figure which shows the example 2 of application which shows the state which couple | bonds the piece axis | shaft which consists of the anchor for member fastening of this invention, and the shaft body of a fastener . The left view of FIG.

Explanation of symbols

1.20.40.50.60: Tube 2.22.26.44.45.54.64.84.94: Shaft 4.14: Slit 5.28.30.46.47.48.49 58.66.81.82.91: piece shaft 7.2.29.57.67.87.97: coupling part 9: inside 10: screw part 11: nut 13.33.53.63.83. 93: head body 24: stepped portion 41: gap 51.61: closed wall portion 89: space portion X: mounting base A: mounting member B: mounting member E: hole

Claims (7)

The shaft body is provided with one or a plurality of coupled portions coupled with a small cross-sectional area that is divided into a shaft body and a piece shaft from a certain position in the length direction of one shaft in the expanded portion of the cylindrical body, And the shaft body provided with the piece shaft is broken from the coupling portion by driving or pushing, and the shaft body and the piece shaft are overlapped and inserted into the expanded portion of the cylindrical body, so that the cylindrical body is expanded. The anchor for member fastening characterized by expanding a part. The cross-sectional area according to claim 1, wherein when the shaft body and the piece shaft are formed by providing a plurality of coupling portions on one shaft, the coupling portion in the front end direction is smaller than the rear coupling portion. An anchor for fastening a member characterized by comprising: In the hole of the mounting base such as a wall or floor, one or a plurality of coupled portions coupled in a small cross-sectional area divided into a shaft body and a piece shaft from a certain position in the length direction of one shaft are provided, The shaft body provided with the shaft body and the piece shaft is broken from the coupling portion by driving or pushing, the shaft body and the piece shaft are overlapped and inserted, and the shaft body is a mounting base such as a wall or a floor A member fastening anchor characterized by comprising a single shaft that can be attached to a wall of a hole and to which a member to be attached can be attached. One or more piece shafts are formed in the expanded portion of the cylindrical body so that at least one side of the shaft independent from the shaft body is tapered toward the tip from the beginning. A shaft body that is tapered toward the tip is formed by driving or pushing in, and the piece shaft and the shaft body are overlapped and inserted into the expanded portion of the cylindrical body, so that the expanded portion of the cylindrical body An anchor for fastening a member, characterized in that it is expanded. Inside the hole of the mounting base such as a wall or floor, one or more piece shafts that are tapered from the beginning and tapered toward the tip at least one side of the shaft independent from the shaft body are placed in advance, In the meantime, a shaft body formed in a tapered shape toward the tip of the shaft is inserted or pushed in, and the piece shaft and the shaft body are inserted into a hole of a mounting base such as a wall or a floor so as to overlap each other. A member fastening anchor comprising the shaft body and the piece shaft, wherein the piece shaft and the shaft body bite into a side wall of a hole of a mounting base such as a wall or a floor. In order to fasten the mounted member from one side, the shaft body and the piece shaft are arranged from a certain position in the length direction of one shaft inside the expanded portion of the cylindrical body with one side of the cylindrical body as a closed wall portion. One or a plurality of coupled portions having a small cross-sectional area divided into two or more are provided, and the shaft body provided with the shaft body and the piece shaft is driven or pushed to break from the coupled portion, and the cylinder A fastener, wherein the shaft body and the piece shaft overlap and are inserted into an expanded portion of the body to expand the expanded portion of the cylindrical body. To fasten the member to be attached from one side, the cylindrical member with the one side of the cylindrical body as a closed wall is inside the expanded portion of the cylinder, and at least one side of the shaft independent from the shaft body from the beginning faces the tip. One or a plurality of piece shafts that are tapered and tapered are inserted, and a shaft body that is tapered and tapered toward the tip of the shaft is inserted between them by driving or pushing, and the cylindrical body is inserted. The fastener is characterized in that the piece shaft and the shaft body are overlapped and inserted into the expanding portion of the tube to expand the expanding portion of the cylindrical body.