JP2000170389A - Anchor pin for repairing exterior wall of building and manufacture therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an anchor pin having a high durable strength and a good mass production effect which is made of a piece of metal plate material. SOLUTION: This is an anchor pin (P) made by inserting and setting a widening plug 11 from a tip side to a hollow inner portion of an anchor pin main body 10 which is wound, bent and cubed from an almost rectangular metal plate material to a cylindrical type; at the tip end portion of the anchor pin main body 10, provided are a stripe of widening expanded slot facing a joint 12 and a wavy irregular stripe 18 for biting a concrete frame body; similarly from the base end portion, a pushing flange 14 for preventing a floating of the mortar exterior wall M or/and a counterflow of an adhesive is bent and projected at almost a rectangular intersecting angle θ, a decorative cap 17 is caulked to its pushing flange 14 as one united body, and in the middle portion of the anchor pin main body 10, outflow holes for adhesives 20a, 20b, 21a, 21b, 22a, 22b, which face each other, are opened and distributed by making one set from at least two holes.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anchor pin for repairing an outer wall of a building and a method of manufacturing the same.

[0002]

2. Description of the Related Art In general, in mortar outer wall repair work for preventing the risk that the mortar outer wall of a building rises and expands over time from its concrete frame and expands (so-called swelling phenomenon), and furthermore, the mortar outer wall is prevented from peeling off. In order to mechanically fix the anchor to the concrete frame, various cylindrical anchor pins, each of which has an expansion plug inserted and set inside the hollow, are used.

[0003] In other words, in advance of its use, into the inside of the prepared hole drilled from the outer wall of the mortar to the concrete frame,
First, the anchor pin is embedded, and the expanding plug is hit to expand the anchor pin from the front end side, so that the anchor pin is bitten and fixed to the concrete frame.

[0004] Next, an adhesive such as a wet-curable epoxy resin is injected into the hollow of the anchor pin, and the adhesive is injected into the hollow of the anchor pin from the hollow of the anchor pin to the lower hole or the outer wall of the mortar by injection pressure. By flowing and spreading to the gap between the concrete skeleton (the floating part of the outer wall) and the synergistic effect of the adhesive force and the biting force of the anchor pin, the mortar outer wall is prevented from rising and expanding or coming off. Has become.

Of the various types of anchor pins into which such an adhesive can be injected, the only one shown in FIGS. 35 to 39 is the only one that is practically used as a product finished from a metal plate into a substantially cylindrical shape. is there.

This conventional anchor pin is formed by pressing a metal plate into a semi-cylindrical shape, and a pair of identical half halves (1L) and (1R) facing each other, and both half halves (1R).
L) An injection port cylinder (2) for a synthetic resin material adhesively welded and integrated to cover the outer peripheral surface and the inner peripheral surface at the base end of (1R). The two halves (1L) and (1R) are assembled and fixed in an overall cylindrical shape via (2).

In addition, the base end side of the inlet cylinder (2) is smoothly curved as an outwardly expanding conical flange portion (2a) adapted to the base end sides of the two halves (1L) (1R). On the other hand, the distal end side of the inner peripheral surface of the injection port cylinder (2) also serves as a stop step portion (2b) to prevent the expansion plug (3) from falling off toward the base end side of the anchor pin. I have.

[0008] (4) is a concave and convex strip for biting the concrete body (C) corrugated at the tip of both halves (1L) and (1R), and (5) is also a double halved body (1L). )
The expanding recess notched at a predetermined length (L) along the crevice while being located at the tip of (1R), (6) remaining both halves (1L) and (1R) It is needless to say that there are a plurality of outflow holes for adhesive distributed in the middle portion, and one pair of the outflow holes faces each other.

[0009]

However, in the anchor pin having the above structure, the two halves (1L) and (1R) are assembled as two independent pieces by the injection port cylinder (2) for synthetic resin material. Since it is an integrated product, as shown in FIG. 38, a part of the injection port tube (2) has a through hole (1L) (1R) which is open to face the base end of the half body (1L) (1R). 7), even if the two halves (1L) and (1R) are forcibly expanded from the distal end side by hitting the expansion plug (3), even if the insertion and welding state is fixed and maintained.
Cracks are easily formed in the inlet cylinder (2) from the cracks, and it is inevitable that the durability of the anchor pin is reduced.

Further, the base end side of the two half-pieces (1L) and (1R) integrally attached to the injection port cylinder (2) has a conical shape having a smooth outer spread as a flange portion (2a). 39, and the flange portion (2a) is embedded and fixed in a state of being immersed into the prepared hole (H) from the surface of the mortar outer wall (M), as is apparent from the use state of FIG. It is difficult for the flange portion (2a) to seal the backflow and overflow of the adhesive (B) to the base end along the prepared hole (H) under the injection pressure.
Moreover, it is impossible at all to prevent the mortar outer wall (M) from being deformed so as to rise and expand by the flange portion (2a).

As a countermeasure, the flange portion (2)
It is conceivable that a) protrudes from the base end side of the injection port cylinder (2) at a large angle and substantially at a right angle. However, in this case, the injection pressure of the adhesive (B) is too high, or the mortar outer wall (M) If the material is greatly bent and deformed, the injection port cylinder (2) made of a synthetic resin material that cannot withstand the tensile force comes off from the two halves (1L) and (1R).

Further, the method of manufacturing the anchor pin is not limited to the sheet metal press working of the two halves (1L) and (1R), and the processed facing pair is continuously and accurately combined to form the injection port cylinder (2). )) Into the molding die, and by pouring a synthetic resin material into the die, simultaneously with the molding and hardening of the injection port cylinder (2), the two halves (1L)
Since (1R) must be fixedly integrated, it is not possible to automate the production process, and it is not possible to exert the effect of mass-producing such a large amount of anchor pins.

[0013]

SUMMARY OF THE INVENTION The present invention is intended to drastically solve the above-mentioned problem. For this purpose, a substantially rectangular metal plate material is wound into a cylindrical shape and bent to form a three-dimensional structure. An anchor pin formed by inserting and setting a plug for expansion from a distal end side into a hollow inside of an anchor pin main body having one seam extending in a longitudinal direction on a body surface,

At the distal end in the longitudinal direction of the anchor pin main body, a concave / convex ridge that will bite into the concrete skeleton of the building functions as a stopper for retaining the concave peripheral ridge toward the distal end of the plug. In addition to forming the resulting wavy shape, a widening split groove having a fixed length longer than the formed length range is provided in parallel with the seam.
While cut out as a strip,

Similarly, a base end portion in the longitudinal direction of the anchor pin main body is bent from a body surface thereof at a substantially right-angled crossing angle as a pressing flange for preventing backflow of an adhesive and / or for preventing floating of a mortar outer wall. At the same time, by inserting the insertion core tube portion of the cosmetic mouthpiece which is crimped so as to wrap the holding flange and integrated into the anchor pin body, it functions as a stopper for retaining the plug toward the base end side of the plug. Determined,

In the anchor pin body, at least a pair of facing outflow holes for adhesive is distributed in an intermediate portion between the distal end portion and the proximal end portion,

Further, as a method of manufacturing the anchor pin for repairing the outer wall of the building, at least one adhesive outflow hole and a single opening whose tip end is open are provided on the longitudinal center line of the substantially rectangular metal plate material. A split groove is also provided at another symmetrical position across the longitudinal center line of the metal plate, at least another pair of adhesive outflow holes, and at least another set of at least one pair of parallel long sides of the metal plate. Cut out a pair of symmetrical notches that will be adhesive outflow holes,

At the longitudinal end portion of the metal plate material, a concave and convex strip for biting into the concrete frame is corrugated so as to intersect with the expanding groove.

Similarly, the base end of the metal plate in the longitudinal direction is bent and raised from the metal plate to a substantially right-angled crossing angle as a holding flange for preventing floating of the mortar outer wall and / or preventing backflow of the adhesive.

Thereafter, the metal plate is wound around the longitudinal center line to form a three-dimensional shape so that the holding flange protrudes outward, so that the long sides of the metal plate close together. While shaping the anchor pin body,

A substantially hollow stud type cosmetic mouthpiece having an insertion core tube portion that can be inserted into the hollow interior of the anchor pin body and a cover portion that is continuously folded in the direction in which the core tube portion exists, Step by step drawing from another metal plate material,

After inserting the plug for expansion into the hollow inside of the anchor pin main body from the base end side, insert the insertion core tube part of the cosmetic base into the base end of the anchor pin main body, and set the base. The cover portion is swaged and integrated with the holding flange.

[0023]

1 to 10 show a finished product of an anchor pin (P) according to the present invention, and FIGS. 27 to 31 show a process of repairing an outer wall of a building by using the anchor pin (P). ing.

The anchor pin (P) of the present invention comprises an anchor pin main body (10) and an expansion plug (11) inserted and set in the hollow interior thereof, and the anchor pin main body (10) has a constant thickness (T1). ) (For example, about 0.7 mm) stainless steel plate (SUS304) or other non-rusting metal plate material can be pressed to the required depth of the concrete skeleton (C) from the surface of the mortar outer wall (M) in the building only by pressing. It is wound and bent into a basic cylindrical shape having a fixed length (L1) (for example, about 50 mm), an outer diameter (D1) (for example, about 6 mm) and an inner diameter (d1) (for example, about 4.6 mm). . (12) shows a single joint (winding bending line from a metal plate) extending along the longitudinal direction of the body surface of the anchor pin body (10).

However, since the mortar outer wall (M) of the building has a thickness change (T) in actuality, even if the length (L1) of the anchor pin body (10) penetrating therethrough is the same, Various types having a difference in length according to the change in thickness are prepared and prepared, and are selectively used.

In this regard, FIGS. 32 to 34 illustrate the second embodiment of the relatively long anchor pin (P). However, the length (L1) of the anchor pin body (10) is changed in the manufacture thereof. At this time, as is apparent from a comparison between FIG. 6 and FIG. 32, a base end of the anchor pin main body (10) is cut from a notch deep end of a later-described expanding split groove in the anchor pin main body (10). Only the length (L2) up to the portion may be changed according to the thickness (T) of the mortar outer wall (M).

The expansion plug (11) is inserted and set inside the hollow of the anchor pin body (10), and has a fixed length (L3) (for example, about 14 mm) and an outer diameter (D2) ( (For example, about 4.4 mm), which is formed into a simple columnar shape from a non-rusting metal bar (billet) similar to the anchor pin body (10), and one end and the other end thereof are formed. It is preferable to determine the anchor pin main body (10) so that the anchor pin main body (10) can be inserted into the hollow inside from any direction without distinction. It goes without saying that both ends are slightly chamfered.

This arrangement is advantageous not only in the workability of the insertion and setting into the anchor pin body (10), but also in connection with the later-described concave and convex strips to be corrugated on the anchor pin body (10). This is because it is possible to effectively prevent the tensile strength of the anchor pin (P) from decreasing with respect to the frame (C).

However, in the case where the concave peripheral ridge of the concave and convex ridge described later is largely protruded inward and the inner diameter at the concave peripheral ridge is reduced in size, the above-described expanding plug (11) is used. One end may be shaped as a bullet or wedge with a tapered conical surface. This is because the tensile strength does not decrease.

A base end in the longitudinal direction of the anchor pin body (10) is opened as an injection port (13) into which the adhesive (B) can be injected, and from that position, the mortar outer wall (M) rises and expands. Or / and adhesive (B)
Circular holding flange (1) to prevent backflow and overflow
4) is continuously bent outward.

Outer diameter (D3) of the holding flange (14)
Is, for example, about 8.2 mm, and is set so as to maintain a crossing angle (θ) substantially perpendicular to the body surface of the anchor pin body (10). Also, the opening edge of the adhesive injection port (13) is preferably a conical surface that expands outwardly to smoothly receive the nozzle (16) of the adhesive injection pump (15) or its connection adapter (not shown). You can do it.

(17) The anchor pin body (10)
To the base end in the longitudinal direction at the holding flange (1
4) is a cosmetic mouthpiece integrated by caulking so as to enclose it, and has a constant thickness (T2) (for example, about 0.4 m).
m) A stainless steel plate (SUS304) or other non-rusting metal plate material is inserted into the anchor pin body (10) as previously extracted in FIG.
And a cover portion (17b) to the presser flange (14) which is continuously turned outwardly from this, and is drawn into an overall substantially hollow stud type.

Further, the inner diameter (d2) of the insertion core tube portion (17a) is, for example, about 3.8 mm, and is set to be smaller than the outer diameter (D2) of the plug (11). Similarly, the outer diameter (D4) of the insertion core tube (17a)
Has a dimension substantially equal to the inner diameter (d1) of the anchor pin body (10).

After the expansion plug (11) is inserted and set into the hollow inside of the anchor pin body (10) from the base end side, the insertion core tube portion (17a) of the makeup base (17) is inserted. Is also inserted from the base end side into the adhesive injection port (13) of the anchor pin body (10), and in this state, the cover (17b) of the base (17) is
It is fixed by caulking so as to enclose the holding flange (14) of the anchor pin body (10). The overall thickness (T3) wrapped by the cover (17b) is, for example, about 1.5 mm, and the outer diameter (D5) is, for example, about 9.0 mm.

As a result, it is possible to prevent the cosmetic pin (17) from opening unsightly from the seam (12) of the anchor pin body (10), and to prevent the anchor pin body (1) from opening.
The adhesive injection port (13) of (0) can be reinforced so that the adhesive (B) does not leak therefrom, and the plug (11) comes out toward the base end side of the anchor pin body (10). The stopper (17) can also serve as a stopper for preventing the risk.

On the other hand, at the longitudinal end of the anchor pin main body (10), an uneven strip (18) that will bite into the concrete skeleton (C) of the building has a certain length range (from the front end surface). L4) (for example, about 12 mm). The outer diameter (D) at the convex circumferential ridge portion (18a) of the corrugated uneven ridge (18).
6) is approximately equal to the outer diameter (D1) of the anchor pin main body (10), for example, about 6 mm. Similarly, the inner diameter (d3) at the concave circumferential ridge (18b) is, for example, about 3.4 mm, and The outer diameter (D2) of the expansion plug (11) is set smaller than the outer diameter (D2), so that the plug (11) does not come out of the distal end side of the anchor pin main body (10).

(19) is longer than the corrugated length range (L4) of the uneven strip (18), and is also a fixed length (L5) (for example, about 5 mm) from the distal end surface of the anchor pin body (10). 20 mm) for the widening split groove
As can be seen from FIGS. 7 to 10, this extends as a single line facing and parallel to the seam (12) of the anchor pin body (10).

That is, FIG. 11 shows the expanded state of the anchor pin main body (10) made of a substantially rectangular metal plate material. The expanded state along the longitudinal center line (YY) in the expanded state is shown. A split groove (19) is cut out, and both long sides of the rectangular metal plate are rolled, bent and closed at the seam (1).
As 2), a line parallel to the dividing groove (19) is formed.

In this case, in the illustrated embodiment, the convex peripheral ridge (18a) and the concave peripheral ridge (18b) of the concave and convex ridge (18) are formed in a ring shape orthogonal to the longitudinal center line (Y-Y). Although it is corrugated, it may be corrugated in a continuous spiral form obliquely intersecting its longitudinal center line (Y-Y).

The anchor pin body (10) has a single seam (12) along its longitudinal direction, and a front end thereof has a single split groove (19) facing and parallel to the seam.
When the expansion plug (11) inserted and set in the hollow interior of the anchor pin main body (10) is hit from the base end side, the anchor pin main body (1) is provided.
0) expands from the front end side as shown in FIG. 29, and particularly the convex peripheral ridge portion (18a) of the uneven strip (18) exerts a biting frictional force on the concrete skeleton (C) of the building. Become.

(20a) (20b) (21a) (21
b) (22a) and (22b) are the anchor pin main bodies (1).
0), the adhesive outlet holes are distributed as a total of three pairs of two pairs facing each other toward an intermediate portion between the distal end portion and the proximal end portion.
0) It can be appropriately increased or decreased according to the length (L1), and at least a set of two pieces is sufficient.

In particular, when a total of two or more pairs of apertures are distributed in the aperture direction, a phase change is performed in each of the pairs of aperture directions so that they are distributed radially symmetrically on the body surface of the anchor pin body (10). Is preferable.

That is, as is apparent from FIGS. 1 to 12 exemplifying a total of three sets, two sets of two outflow holes (2
0a, (20b), (21a), and (21b) are the longitudinal center lines (Y-) of the anchor pin body (10) in the deployed state.
Y), an opening is formed at a symmetrical position with respect to the other, and the pair of outflow holes (22a) and (22b) facing each other are formed on the longitudinal center line (Y-Y) and the seam (12) (a rectangular metal plate material). By forming an opening on the line of both long sides),
Each set is kept in the orthogonal direction.

Outflow holes (20a) (2
It goes without saying that the openings of the 0b, (21a), (21b), (22a) and (22b) are displaced even in the longitudinal direction of the anchor pin body (10).

Then, the anchor pin body (1)
From the adhesive injection port (13) opening at the base end of 0),
The adhesive (B) injected into the hollow interior is shown in FIGS.
The outlet holes (20a) (20b) (21a)
(21b) (22a) From (22b), it is possible to quickly and spill out to the periphery of the body surface in a wide range in each direction, and it is more and more effective. The outlet holes (20a) (20b) (21a) (21b) (22a)
It is desirable that each of the members (22b) is formed into an opening having a rectangular or elliptical shape of, for example, about 6 mm × 2 mm.

Since the anchor pin body (10) of the present invention and the cosmetic mouthpiece (17) at the base end thereof are each made of one piece of stainless steel plate or other metal plate material, each of them is connected to the automatic feeder in a multistage continuous manner. Mass production can be performed very efficiently by automatic press working in combination with a die (progressive die). Finally, a cosmetic base (17) is attached to the base end of the anchor pin body (10) as described above. (14)
If crimped into the wrapped state of
Thus, the anchor pin (P) of the present invention is finished.

13 to 20 show a series of manufacturing steps of the anchor pin body (10). In manufacturing the anchor pin body (10), a long strip having a constant thickness (T1) and a band width is used. The metal sheet (blank) (W1) is sequentially fed along a straight line in the direction of the arrow (A1) in FIG. 13 by a roll feed or other automatic feeder (not shown). Then, various processes in the following first to twelfth steps (I) to (XII) are performed.

Reference numeral (23) in FIG. 13 denotes a pair of positioning pilot holes punched out at the left and right ends of the metal plate (W1) immediately before the first step (I). By inserting a process punch (not shown) of each processing die into and out of the hole (23) so as to be freely inserted and removed, the metal plate material (W1) itself is correctly positioned and stopped, and the pilot hole (23) of the pilot hole (23) is formed. The interval pitch (F1) is intermittently fed sequentially as the feed pitch of the metal plate material (W1).

First, in the first step (I), as is apparent from FIG. 13, a plurality of preliminary punched holes (24) are formed on the left side of the metal plate material (W1) by the first processing die, and the metal plate material (W1) is formed. Cut out as a row of cascading lines on the crossing line. This preliminary punched hole (24) will be
Corresponds to the primary processing for smoothly corrugating, and has a contour shape and a number corresponding to the corrugation.

Next, in the second step (II), the left and right side of the metal plate material (W1) is also moved by a second processing die to form a pair of left and right lines aligned with the preliminary punched holes (24) of the uneven strips (18). , And a total of five adhesive outflow holes (20a), (20b), (21a), and (21) are also preferably punched into the right side of the metal plate (W1).
b) (22a) is also aperture-distributed. This second step (II)
Another pre-drilled hole (25) at
This corresponds to the primary processing for smoothly notching the expanding split groove (19) in 5).

The adhesive outlet holes (20a) (20a)
b) (21a) (21b) (22a) for a total of five holes, two sets of four outflow holes (20a) (20b) (2
1a) and (21b) are arranged side by side in a front-to-rear pair, while the remaining one outlet hole (22a) forms another set.
4) and opening on the same line as the preliminary punched hole (25) of the split groove for expansion (19).

In the subsequent third step (III), the pair of left and right sides is separated from each other while utilizing the preliminary punched hole (25) of the expanding split groove (19) opened in the second step (II). By the third processing die, the uneven strips (1
The pre-drilled hole (24) of (8) is cut into a so-called skewer communication state, and a single expanding split groove (19) extending by a certain length (L5) is arranged.

Next, in a fourth step (IV), as a primary contour removal (shape removal) processing of the anchor pin main body (10), the left side of the metal plate material (W1) is viewed from above by a fourth processing die. A substantially T-shaped notch hole (26) is punched out and opened to keep the contour shape of the anchor pin body (10) in a partially separated state.

At this time, the parallel opening edges opposed to the T-shaped notch hole (26) are cut into preparatory holes (2) of the concavo-convex strip (18) cut in a cascading state in the first step (I).
Corresponding to 4), it is carved as a partial wavy portion within the predetermined length range (L4). Until the fourth step (IV), each processing die is maintained in a double-supported state by the pair of left and right pilot holes (23).

In the subsequent fifth step (V), the T-shaped notch hole () in the fourth step (IV) is used as a secondary contour cutting (shaping) processing of the anchor pin body (10). 26) A substantially U-shaped notch hole (27) in plan view communicating with the metal plate material (W1) is formed by the fifth processing die.
Of the anchor pin main body (10) is kept separated even in the remaining portion, and the metal plate material (W1) is still formed only by the narrow support leg (28) at the left end. ) To form a rough plate (E) of the anchor pin body (10).

In this case, the inside of the U-shaped cutout hole (27) is formed as a pair of front and rear recesses (22b) facing each other, and is removed so as to be wider than the entrance thereof. When formed, the two recesses (22b) are closed, and one adhesive outlet hole paired with one of the adhesive outlet holes (22a) punched in the second step (II). Are prepared so as to be partitioned.

The secondary contour cutting in the fifth step (V) removes the pilot hole (23) formed in the right end of the metal plate (W1) in advance. The fifth processing die is in a cantilever state only with the pilot hole (23) opened at the left end of the metal plate material (W1), and this state is the same in the subsequent steps.
When performing the various processes in the fifth to eighth steps (V) to (VIII), the adhesive outflow holes (22a) punched and opened in the second step (II) are connected to the right end of the metal plate material (W1). The working dies in the fifth to eighth steps (V) to (VIII) may be maintained in a double-supported state by alternately using the pilot holes (23) opening to the portion.

In the fifth step (V), at the time of contour removal processing,
As suggested from FIG. 13, the right side edge of the metal plate (W1) is cut out in a stepped state in which the fixed band width is slightly narrowed. Even if there is a dimensional variation in the band width, the pressing flange (14) in the subsequent process is prepared so that it can be bent with high precision. Therefore, the metal plate material (W1) has the above-mentioned variation in the quality. If not, there is no need to perform notch processing to the narrow step state with the constant band width.

In any case, the rough plate (E) formed in the fifth step (V) has a substantially rectangular shape in plan view corresponding to the developed state of the anchor pin body (10) shown in FIG. , A fixed length (L1). Then, a fixed length (L5) extending on the longitudinal center line (Y-Y)
Are located in parallel with both long sides of the rectangle.

Since the right side of the metal plate (W1) is also separated with the contour shape of the anchor pin body (10) by the contour punching in the fifth step (V), the subsequent sixth step (VI) In (6), the right side edge of the metal plate (W1) can be flanged by the sixth processing die without any trouble.

That is, as shown in FIG. 14, one end of the anchor pin body (10) in the crude plate (E) in the longitudinal direction is bent by a substantially right-angled crossing angle (θ) to thereby form the mortar outer wall (M). Pressing flange (1) for preventing lifting and / or preventing backflow of adhesive (B)
4) is formed. The holding flange (14) is projected outward from the cylindrical anchor pin body (10) by winding and three-dimensional formation in a later step.

Next, in a seventh step (VII), a predetermined length range (L4) of the crude plate (E), which is cut in a wavy shape, is used.
The corrugation (embossing or beading) processing is performed by the seventh processing die as shown in FIG. 15 to form the uneven strips (18) that will be bitten into the concrete skeleton (C) of the building. I do. The rough plate (E) of the anchor pin main body (10) has undergone the contour cutting process in the fifth step (V), and is in a state of being separated from each other, that is, the first plate.
In the step (I), the preliminary holes (2)
Since 4) is cut out, it is possible to perform the corrugation of the uneven strip (18) with high accuracy without any trouble.

In the subsequent eighth step (VIII), the parallel long sides of the crude plate (E) of the anchor pin body (10) are clarified from FIG. It is slightly bent and raised in a direction opposite to (14) (so-called nose bending).

Then, the ninth and tenth steps (IX)
Using the ninth and tenth working dies in (X), the crude plate (E) of the anchor pin main body (10) is sequentially and stepwise bent from a U-shape to a C-shape as shown in FIGS. Then, by the eleventh processing die in the eleventh step (XI), parallel long sides of the rough plate (E) are completely pressed as shown in FIG. It is three-dimensionalized into a cylindrical shape having an outer diameter (D1).

During the stepwise bending in the eighth to eleventh steps (VIII) to (XI), the processing in each step is performed so that the holding flange (14) which has been processed in advance does not unfold back. As a matter of course, it is backed up by the mold, and the bending angle (θ) is maintained at a substantially right angle, and the holding flange (14) projects outward from the anchor pin body (10). Becomes

In the last twelfth step (XII), the rough plate (E) of the anchor pin main body (10) is still removed from the metal plate material (W1).
The narrow supporting leg (28), which is maintained in a slightly continuous state with the above, is cut off by the twelfth processing die, and the rough plate (E) is divided by the above-mentioned splitting groove (19). The length is determined to be a predetermined length (L1) that is to be cut, and then the cylindrical anchor pin body (10) as shown in FIG. 12 is finished.

In the method of manufacturing the anchor pin body (10), the processes from the eighth step (VIII) to the twelfth step (XII) are performed in a smooth stepwise manner in the order described. The various processes up to the eighth step (VIII) may be performed in a different order.

That is, for example, the first step (I) and the second
Processing order with step (II), processing order with third step (III) and fourth step (IV), fourth step (IV) and fifth step (V)
And the processing order of the sixth fixing (V1) and the seventh step (VII) may be reversed, or the first and second steps (I)
Various processes in (II) can be performed all at once, various processes in the second and third steps (II) and (III) can be performed simultaneously, and further, in the sixth and seventh steps (V1) and (VII). Various processes may be performed at once.

On the other hand, FIGS. 21 to 26 show the makeup base (1).
7) shows a series of manufacturing steps, and in manufacturing the same, a long metal plate (blank) (W2) having a constant thickness (T2) and a band width is also fed to an automatic feeder. Along the straight line, the arrow (A2) in FIG.
In each direction, and each time the intermittent stop is performed, various steps are performed in several steps as follows.

That is, (29) is a pair of positioning pilot holes punched out on both right and left ends of the metal plate (W2), into which process punches (not shown) of each processing die can be freely inserted and removed. As a result, the metal plate (W2) is also accurately positioned and stopped by itself.
The pitch (F2) between the pilot holes (29) is intermittently fed sequentially as the feed pitch of the metal plate (W2).

Therefore, first, in the first step (i), the metal plate material (W2) is formed on the metal plate material (W2) by the first processing die.
And the first annular engraving line (30) that is still continuous at a plurality of points
And a large concentric annular second engraved line (3) is formed around the periphery thereof by the second processing die in the second step (ii).
Perform 1). A plurality of points where the second engraving line (31) is still continuous with the metal plate material (W2) are in a positional relationship that is phase-changed with that of the first engraving line (30).

The first and second engraved lines (30) (3)
1) corresponds to a preliminary thinning for separating the inside of the section of the first engraved line (30) from the line so that the interior of the section is smoothly plastic-deformed and is not damaged even after being drawn.

Thereafter, the inside of the section of the first marking line (30) applied to the metal plate material (W2) by the third to fifth working dies in the third to fifth steps (iii) to (v) is Drawing process is performed in a smooth stepwise manner, and the inserted core tube portion (17a) of the cosmetic mouthpiece (17) is removed from the metal plate material (W2) with reference to FIGS.
It gradually bends like a thin and tall. (3
2) is subjected to the tensile action at the time of drawing, so that
This indicates a relief opening that expands on the engraved lines (30) and (31).

Next, the insertion core tube (17a), which is still bent and raised and closed at the tip end, is cut off as shown in FIG. It is opened in a hollow state with a proper inner diameter (d2).

Subsequently, as shown in FIG. 25, the cover portion (17b) of the cosmetic base (17) is formed into a circular shape in a still unfolded state, and a metal plate material (W2) having the required size is formed.
Then, the cover portion (17b) is inserted and drawn so as to be bent in the direction in which the core tube portion (17a) is present, thereby completing a cosmetic mouthpiece (17) as shown in FIG. Reference numeral (33) in FIG. 21 is a circular hole of the cover portion (17b) that remains in the metal plate material (W2).

Then, after the expansion plug (11) is inserted and set from the base end side into the hollow inside of the separately finished anchor pin main body (10), the anchor pin main body (10) is set from the same base end side. 10) Injection port for adhesive (13)
The core tube portion (17a) for inserting the cosmetic base (17)
And insert the cover (17b) of the base (17).
To the holding flange (1) of the anchor pin body (10).
4) By crimping and integrating as if wrapping in
It is completed as the anchor pin (P) of the present invention.

According to the method of manufacturing the anchor pin body (10), a pair of positioning pilot holes (23) are preliminarily formed on both left and right ends of a long metal plate material (W1) having a fixed band width. Therefore, the metal plate (W1) is provided at a constant pitch (F1) by the guide of the pilot hole (23).
In the process of progressively feeding 1), various processes up to the partial contour punching (shape punching) process using the T-shaped notch hole (26) or the U-shaped notch hole (27) can be performed stably with high precision. Can be performed.

Then, either one of the left and right sides of the metal plate (W1) is cut off by the partial contouring process, and as a result, one pilot hole (23) is removed. Even if
In the subsequent process, each processing die is connected to the other pilot hole (2
3), the cantilever is maintained until the final process,
A substantially right-angled crossing angle (θ) is formed by using one side edge of the metal plate material (W1) as a holding flange (14).
It can be bent without any trouble.

Further, the above-described T
U-shaped notch (26) and U-shaped notch (27)
Are punched into a state in which they communicate with each other, whereby a rough plate (E) having an overall developed contour shape as the anchor pin body (10) is formed, and the rough plate (E) is formed. Each of the processing dies that successively turns and bends E) in a stepwise manner is also maintained in a cantilever state by the pilot hole (23), so that the stepwise winding and bending can be smoothly performed without any trouble. .

As a result, only by the automatic press working in the progressive process along the straight line of the metal plate material (W1),
A high-quality cylindrical anchor pin body (10) can be manufactured extremely efficiently, while the cosmetic mouthpiece (17) can be manufactured efficiently only by automatic pressing in the same manner as the anchor pin body (10). Therefore, it is possible to maximize the effect of mass production of the anchor pin (P) according to the present invention.

The anchor pin (P) of the present invention is used for repairing the outer wall of a building as follows.

That is, in performing the repair work,
First, a drill bit (34) for drilling as shown in FIG. 27 to the floating part marked in advance on the mortar outer wall (M) of the building.
Is used to open a pilot hole (H) for embedding anchor pins of a certain depth reaching from the mortar outer wall (M) to the concrete skeleton (C).

The drill bit (34) is located at the boundary between the small-diameter drilling portion (34a) at the distal end and the large-diameter chip removing portion (34b) at the base end, and the chip removing portion (34b) is provided.
A plurality of intermediate cutting blades (34c) having an even larger diameter are so-called two-stage bits fixed and integrated in a radially symmetric distribution type, and are used for rotary driving tools (35) such as vibration type electric drills and hammer drills. Used for mounting. (34d) is a tip cutting edge fixed to the perforation section (34a).

The edge (entrance) where the prepared hole (H) opens on the surface of the mortar outer wall (M) is formed by the intermediate cutting edge (34c) of the drill bit (34) to the anchor pin body (10). A large stepped hole (36) corresponding to the above-mentioned holding flange (14) can be drilled at once. The perforated state is as shown in FIG.

Next, the anchor pin (P) is buried in the prepared hole (H) having the stepped hole (36) as shown in FIG. 29, and is inserted and set inside the hollow of the anchor pin body (10). The expanding plug (11) is struck by a striking tool (37) such as a driving rod or a hammer.

In this case, the expansion plug (11) inserted and set inside the hollow of the anchor pin body (10).
Are the insertion core tube portion (17a) of the cosmetic mouthpiece (17) in the anchor pin body (10) and the uneven strip (18).
Is sealed in such a manner that it does not fall off toward either the base end or the front end by the concave peripheral ridge portion (18b), so that it is very convenient for transportation and handling at a construction site. It also helps to improve the efficiency of tapping work.

By hitting the expanding plug (11),
The anchor pin main body (10) is gradually expanded and deformed from the distal end side thereof by the expanding split groove (19) and the joint (12), and the above-mentioned concavo-convex strip (18) is a particularly convex circumferential strip (18a). Is fixed to the concrete frame (C) irremovably, while the large holding flange (14) of the anchor pin body (10) is properly locked in the stepped hole (36). The mutual gap (S1) between the body surface of the anchor pin main body (10) and the pilot hole (H) is blocked from the surface of the mortar outer wall (M).

Then, the nozzle (16) of the adhesive injection pump (15) is directly connected to the adhesive injection port (13) of the anchor pin (P) as shown in FIG. It is inserted and set indirectly via a connection adapter, and a wet-curable epoxy resin or other adhesive (B) is injected under pressure into the hollow interior of the anchor pin body (10).

Then, the injected adhesive (B)
As shown in FIGS. 30 and 31, a plurality of adhesive outflow holes (20a) distributed on the body surface of the anchor pin body (10).
(20b) (21a) (21b) (22a) (22b)
Through the opening groove (19) and the seam (12) to smoothly and quickly flow into and out of the gap (S1) between the body surface and the pilot hole (H). Gap between the building (C) (floating part) (S
2) It will spread and penetrate a wide area.

As a result, the anchor pin (P) fixed to the concrete body (C) is fixed to the adhesive (B).
The mortar outer wall (M) rises from the concrete skeleton (C) and expands due to the synergistic action of the mechanical fixing force and the adhesive force of the anchor pin (P). It is remarkably firmly bonded and integrated with the concrete skeleton (C) without fear of bending deformation and further peeling off.

In this case, since the adhesive (B) is injected into the hollow interior of the anchor pin body (10) in a pressurized state by the injection pump (15), the adhesive (B) receiving the internal pressure is used. ) Attempts to flow back and overflow to the surface of the mortar outer wall (M) along the mutual gap (S1) between the trunk surface of the anchor pin body (10) and the prepared hole (H), and the mortar outer wall (M) Act to bend and bend into an expanded state.

In this respect, the anchor pin body (1) of the present invention
No. 0) is formed by bending a three-dimensional metal plate material (W) into a cylindrical shape from a one-piece metal plate material (W), and a large-diameter holding flange (14) is formed from an adhesive injection port (13) on the base end side thereof. Is bent so as to maintain a crossing angle (θ) that is substantially perpendicular to the mortar outer wall (M). The backflow and spillover of the mortar and the contamination of the surface due to the backflow and overflow, and the bending phenomenon of the outer wall (M) of the mortar can be reliably suppressed.

The cosmetic mouthpiece (17) fixed by caulking to the holding flange (14) also works effectively, and the injection hole (13) for the adhesive of the anchor pin body (10). Can be accidentally opened and the adhesive (B) does not leak out quickly, and the adhesive inlet (13) is reinforced and maintained in a stable and robust state.

After the injection of the adhesive (B), the nozzle (16) is connected to the adhesive injection port (1) of the anchor pin (P).
3), the injection port (13) is finished in a beautiful closed state with a putty or an epoxy plug (38) such as epoxy mortar compatible with the adhesive (B), as suggested in FIG. Just do it.

Although the outer wall repair work for injecting the adhesive (B) has been described, the anchor pin (P) of the present invention injects the adhesive (B) into the hollow interior of the anchor pin body (10). In some cases, the mortar outer wall (M) is embedded in the concrete skeleton (C) of the building to prevent the mortar outer wall (M) from rising and expanding only by the mechanical fixing force as it is.

In the anchor pin (P) according to the second embodiment shown in FIGS. 32 to 34, a check valve (39) for an adhesive is inserted into the body of the anchor pin body (10) from the distal end side. As a result, as apparent from FIG. 34, the adhesive (B) that flows back and overflows to the surface of the mortar outer wall (M) along the body surface of the anchor pin body (10), the pilot hole (H), and the mutual gap (S1). ) Can be more and more effectively sealed.

For this purpose, the check valve (39) is made of a material which can be plastically deformed such as soft butyl rubber or pseudo-clay, and is formed of an outer diameter (D3) of the holding flange (14) and an outer diameter of the cosmetic base (17). It is preferable to make a ring shape larger than the diameter (D5), and this is to be used as a holding flange (14).
, And is kept in a use state in which the anchor pin main body (10) does not come out of the base end side. The check ring (39) may be made of a material that can be elastically deformed and formed in a similar ring form.

When such a check valve (39) is used in combination with the anchor pin (P), the distal end surface of the anchor pin main body (10) is provided with a concave peripheral ridge (18) of the concave and convex ridge (18).
b), the fixed length (L
It is desirable to dimension in 1). In other words, the outer diameter (D7) of the anchor pin main body (10) at the tip end surface is made smaller than the outer diameter (D1) of the remaining trunk surface, so that the inner diameter (d4) is larger than this. The check valve (39) can be quickly and smoothly inserted from the distal end side of the anchor pin body (10), and the convenience of the setting operation is enhanced.

Since the other configuration in the second embodiment is substantially the same as that in the first embodiment, FIG.
Only the reference numerals corresponding to those in FIGS. 1 to 12 are entered in 2-34, and the detailed description thereof is omitted.

[0100]

As described above, according to the present invention, a substantially rectangular metal plate is rolled into a cylindrical shape and bent into a three-dimensional shape, so that a single seam (1) extending in the longitudinal direction is formed on the body surface.
Into the hollow interior of the anchor pin body (10) with 2)
An anchor pin (P) formed by inserting and setting an expansion plug (11) from the tip side thereof,

At the longitudinal end of the anchor pin main body (10), a concave / convex strip (18) that will bite into the concrete skeleton (C) of the building, and the concave peripheral strip (18b) is connected to the plug (18). (11) The expansion groove () having a fixed length (L5) longer than the formed length range (L4), while being shaped like a wave that can function as a stopper for retaining toward the front end side. 19) with the seam (1
2) It is cut out as one parallel line facing and

Similarly, the base end of the anchor pin body (10) in the longitudinal direction is used to prevent backflow of the adhesive (B) and / or
And as a holding flange (14) for preventing the mortar outer wall (M) from being lifted, the holding flange (14) is bent outward from the body surface at a substantially right-angled crossing angle (θ),
The plug (1) is inserted into the anchor pin body (10) by inserting the insertion core tube portion (17a) of the cosmetic mouthpiece (17) integrated by caulking so as to wrap the 4).
1) It is determined to function as a stopper for retaining toward the base end side,

In the intermediate portion between the distal end portion and the proximal end portion of the anchor pin body (10), the outflow holes for adhesive (20a) (20b) (21a) (21b) (22)
a) Since at least two pairs of (22b) are aperture-distributed, there is an effect that the problem of the prior art described with reference to FIGS. 35 to 39 can be completely solved.

That is, according to the above-described structure of the present invention, the anchor pin body (10) of the anchor pin (P) is formed into a three-dimensional shape by bending a one-piece metal plate into a cylindrical shape, and furthermore, in the longitudinal direction thereof. The end portion serves as a holding flange (14) for preventing floating of the mortar outer wall (M) and / or for preventing backflow of the adhesive (B), and has a crossing angle (θ) substantially perpendicular to the body surface of the anchor pin body (10). Since the internal pressure of the adhesive (B) injected into the anchor pin main body (10) works because it is bent outward to keep the adhesive (B)
It is extremely useful for repairing the outer wall of a building without the risk of backflow and overflow to the surface of the mortar outer wall (M), and the mortar outer wall (M) rising and expanding.

In particular, since the cover portion (17b) of the cosmetic mouthpiece (17) is swaged and integrated with the holding flange (14) in a wrapped state, the anchor pin body (10) The base end portion is kept stable and strong. As a result, the base end portion inadvertently opens from the seam (12) of the anchor pin body (10), causing a decrease in commercial value and a feeling of uneasiness in use. There is no danger of the adhesive (B) leaking out of the adhesive inlet (13) as soon as possible.

Moreover, the cosmetic mouthpiece (17) not only has the effect of reinforcing the base end portion of the anchor pin body (10), but also has the insertion core tube (17a) inserted into the hollow interior of the anchor pin body (10). ) Is the expansion plug (1
It also has a function as a stopper for retaining the base toward 1), so it can be said that it is a remarkably rational design, and it is also extremely convenient for transportation to the repair site and handling use. Excellent.

The anchor pin body (10) is formed as a one-piece product by winding and bending a metal plate into a cylindrical shape.
Since it has a single seam (12) extending in the longitudinal direction, it has a single parallel expansion groove (1) facing the seam (12).
It is sufficient to cut 9) into the distal end of the anchor pin main body (10), and the anchor pin main body (10) can be efficiently expanded from the distal end side.

Particularly, if the configuration of claim 2 is adopted,
Not only can the expansion plug (11) be a simple columnar type to maximize its mass production effect, but it can also be used for the anchor pin body (1) without distinction between one end and the other end.
0) can be conveniently inserted and set into the hollow interior, and furthermore, its concave peripheral strips are correlated with the corrugated strips (18) formed at the tip of the anchor pin body (10). Even if the inner diameter (d3) at the portion (18b) has a dimensional variation, it is possible to effectively prevent a decrease in the tensile strength of the anchor pin (P).

According to the third aspect of the present invention, not only the holding flange (14) of the anchor pin body (10) but also the check ring (3) which is set through the body surface of the anchor pin body (10).
According to 9), the adhesive (B) can be more effectively prevented from flowing back and overflowing, and the check valve (3)
9) can be quickly and smoothly passed through the thin distal end surface of the anchor pin main body (10) for convenience.

Further, according to the manufacturing method of the fourth aspect, the concave and convex strips (18) for biting the concrete frame (C) in the anchor pin main body (10) and the split grooves (1) for the expansion are provided.
9) At least two sets of adhesive outlet holes (20a)
(20b) (21a) (21b) (22a) (22
b), the entire presser flange (14) can be formed only by automatic press working on the metal plate material, and the effect of mass production of the anchor pin (P) can be maximized.
This type is remarkably excellent for repairing the outer walls of buildings used in large quantities.

[Brief description of the drawings]

FIG. 1 is a plan view showing a first embodiment of an anchor pin according to the present invention.

FIG. 2 is a front view of FIG.

FIG. 3 is a rear view of FIG. 2;

FIG. 4 is a right side view of FIG.

FIG. 5 is a left side view of FIG. 1;

FIG. 6 is a sectional view taken along line 6-6 in FIG. 1;

FIG. 7 is a sectional view taken along line 7-7 of FIG. 2;

FIG. 8 is an enlarged sectional view taken along line 8-8 in FIG. 2;

FIG. 9 is an enlarged sectional view taken along line 9-9 in FIG. 2;

FIG. 10 is an enlarged sectional view taken along line 10-10 in FIG. 2;

FIG. 11 is an exploded perspective view showing the anchor pin main body.

FIG. 12 is a sectional view showing a disassembled state of the anchor pin main body and the cosmetic base.

FIG. 13 is a plan view showing a series of manufacturing steps of the anchor pin main body.

FIG. 14 is an enlarged sectional view taken along line 14-14 of FIG.

FIG. 15 is an enlarged sectional view taken along line 15-15 of FIG.

FIG. 16 is an enlarged sectional view taken along line 16-16 of FIG.

FIG. 17 is an enlarged sectional view taken along line 17-17 of FIG.

FIG. 18 is an enlarged sectional view taken along line 18-18 in FIG.

FIG. 19 is an enlarged sectional view taken along the line 19-19 in FIG.

FIG. 20 is an enlarged plan view showing a part of FIG.

FIG. 21 is a plan view showing a series of manufacturing steps for a cosmetic base.

FIG. 22 is an enlarged sectional view taken along line 22-22 in FIG. 21;

FIG. 23 is an enlarged sectional view taken along line 23-23 of FIG. 21;

FIG. 24 is an enlarged sectional view taken along line 24-24 in FIG. 21;

FIG. 25 is a sectional view showing a makeup base extracted from FIG. 24;

FIG. 26 is a sectional view showing a finished state of the makeup base following FIG. 25;

FIG. 27 is a cross-sectional view showing a state in which a pilot hole for anchor pin embedding is drilled.

FIG. 28 is a sectional view showing the prepared anchor pin embedding hole.

FIG. 29 is a cross-sectional view showing a tapping operation state of the expanding plug.

FIG. 30 is a cross-sectional view showing a state in which an adhesive is injected into an anchor pin.

FIG. 31 is a cross-sectional view showing a state in which the outer wall has been repaired by the anchor pin.

FIG. 32 is a sectional view showing a second embodiment of the anchor pin according to the present invention.

FIG. 33 is an enlarged front view of FIG. 32;

FIG. 34 is a cross-sectional view showing a state where the outer wall has been repaired by the anchor pin of the second embodiment.

FIG. 35 is an exploded perspective view showing a conventional anchor pin.

FIG. 36 is a plan view showing an assembled state of FIG. 35;

FIG. 37 is a front view of FIG. 36.

FIG. 38 is a sectional view taken along line 38-38 of FIG. 36;

FIG. 39 is a cross-sectional view showing a state of use of a conventional product.

[Explanation of symbols]

(10) ・ Anchor pin body (11) ・ Expansion plug (12) ・ Seam (14) ・ Presser flange (17) ・ Face cap (17a) ・ Insertion core tube part (17b) ・ Cover part (18)・ Concavo-convex strip (18a) ・ Convex circumferential strip (18b) ・ Concave circumferential strip (19) ・ Split groove for expansion (20a) (20b) (21a) (21b) (22a)
(22b) ・ Outflow hole for adhesive (39) ・ Check valve for adhesive (B) ・ Adhesive (C) ・ Concrete frame (M) ・ Mortar outer wall (P) ・ Anchor pin (θ) ・ Cross angle ( YY) · Longitudinal center line of the metal plate

 ────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Teruhiko Wada 3-2-1-17 Nishitenma, Kita-ku, Osaka City, Osaka FFC Co., Ltd. F-term (reference) 2E176 AA02 BB13 BB17 BB21 BB36 DD26

Claims (4)

[Claims] 1. An anchor pin main body (10) having a single seam (12) extending in the longitudinal direction on its body surface by being bent and cylindrically formed from a substantially rectangular metal plate material into a cylindrical shape. An anchor pin (P) formed by inserting and setting an expansion plug (11) from the tip side into the hollow interior, and a longitudinal end of the anchor pin body (10) is provided with concrete of a building. The concave and convex strips (18), which are to bite into the frame (C), are formed into a wavy shape in which the concave peripheral strips (18b) can function as stoppers for retaining the plugs (11) toward the tip end. The opening split groove (19) having a fixed length (L5) longer than the formed length range (L4) is cut out as a single line facing and parallel to the seam (12). Pin body (10 The base end in the longitudinal direction of (1) is used as a pressing flange (14) for preventing backflow of the adhesive (B) and / or for preventing the floating of the mortar outer wall (M) from rising. θ)
The cosmetic core (17), which is integrally bent and crimped so as to enclose the holding flange (14), is inserted into the anchor pin body (1).
0), the plug (11) is determined to function as a stopper for stopping toward the proximal end side of the plug (11). An intermediate portion between the distal end portion and the proximal end portion of the anchor pin main body (10) includes: Opposite adhesive outflow holes (20a)
(20b) (21a) (21b) (22a) (22b)
An anchor pin for repairing an outer wall of a building, characterized in that at least one set of the two is distributed in an opening. 2. An expansion plug (11) having an outer diameter (D
2) The inner diameter (d3) of the concave peripheral ridge (18b) in the concave and convex strip (18) of the anchor pin main body (10) and the inner diameter (d2) of the insertion core cylinder (17a) in the cosmetic mouthpiece (17). By modeling as a thicker cylinder,
2. An anchor pin for repairing an outer wall of a building according to claim 1, wherein the anchor pin is provided so as to be inserted and used without distinction between the one end and the other end. 3. An annular check valve (39) in the form of a ring, which is restrained by a holding flange (14) at its base end, is inserted into the body surface of the anchor pin body (10) and set. By cutting the tip end surface of the pin body (10) at the concave peripheral ridge (18b) of the uneven strip (18), the outer diameter (D7) at the tip end surface is reduced to the inner diameter (d4) of the check ring (39). 2. An anchor pin for repairing an outer wall of a building according to claim 1, wherein the anchor pin is smaller in size than (1). 4. An at least one adhesive outflow hole (2) on a longitudinal center line (YY) of a substantially rectangular metal plate material.
2a) and a single splitting groove with an open end (19)
At a symmetrical position with respect to the longitudinal center line (Y-Y) of the metal plate material.
0a), (20b), (21a), and (21b), and a pair of symmetrical notches (22b) serving as at least one further set of adhesive outflow holes are cut out in parallel long sides of the metal plate. In addition, the metal plate material is corrugated at the longitudinal end thereof with corrugated ridges (18) for biting into the concrete skeleton (C) so as to intersect with the split grooves (19). Similarly, the base end in the longitudinal direction of the metal plate is used as a holding flange (14) for preventing floating of the mortar outer wall (M) and / or for preventing backflow of the adhesive (B). ), And then the metal plate is stretched outward so that the holding flange (14) projects outward.
-Y) to form a cylindrical anchor pin body (10) in which the long sides of the metal plate material are closed by bending and bending into a three-dimensional shape, and can be inserted into the hollow interior of the anchor pin body (10). A substantially hollow stud type cosmetic mouthpiece (17) having an insertion core tube portion (17a) and a cover portion (17b) continuously folded in the direction in which the core tube portion (17a) exists is separated into another. After gradually drawing from a metal plate material, a plug (11) for expanding is inserted and set from the base end side into the hollow inside of the anchor pin main body (10), and then the base end of the anchor pin main body (10) is formed. To the above-mentioned makeup base (1
7) Inserting the core tube portion (17a) of (7), caulking the cover portion (17b) of the base (17) into the wrapped state of the holding flange (14), and integrating the crimping portion (17). Manufacturing method of anchor pin for car.