WO2010018615A1 - Manchon pour boulon d’ancrage et son procédé de fabrication - Google Patents

Manchon pour boulon d’ancrage et son procédé de fabrication Download PDF

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Publication number
WO2010018615A1
WO2010018615A1 PCT/JP2008/064406 JP2008064406W WO2010018615A1 WO 2010018615 A1 WO2010018615 A1 WO 2010018615A1 JP 2008064406 W JP2008064406 W JP 2008064406W WO 2010018615 A1 WO2010018615 A1 WO 2010018615A1
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WO
WIPO (PCT)
Prior art keywords
hole
diameter
sleeve body
diameter hole
small
Prior art date
Application number
PCT/JP2008/064406
Other languages
English (en)
Japanese (ja)
Inventor
晃 三宅
Original Assignee
Miyake Akira
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Miyake Akira filed Critical Miyake Akira
Priority to PCT/JP2008/064406 priority Critical patent/WO2010018615A1/fr
Publication of WO2010018615A1 publication Critical patent/WO2010018615A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
    • F16B13/04—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front
    • F16B13/06—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve
    • F16B13/063—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve by the use of an expander

Definitions

  • the present invention relates to an anchor bolt sleeve fixed in a prepared hole formed in concrete or cellular concrete, and a method for manufacturing the anchor bolt sleeve.
  • sleeve body having a slit extending in the axial direction at the tip, and a truncated cone-shaped wedge body incorporated in the sleeve body, and the slit is formed by driving the wedge body toward the tip of the sleeve body.
  • An anchor bolt sleeve that fixes the sleeve body by expanding the diameter of the tip of the sleeve body in a pilot hole formed in concrete or lightweight cellular concrete (hereinafter, concrete or lightweight cellular concrete is simply referred to as concrete) are known.
  • the sleeve body and the wedge body are separate parts, it is necessary to manufacture the sleeve body and the wedge body separately, which increases the cost. Also, the wedge body has a small diameter end first, and the sleeve body. Since it is necessary to insert the inside of the sleeve, it takes time for the combination, and the wedge body may come out of the sleeve body in the combined state, so that handling becomes difficult.
  • An object of the present invention is to provide a sleeve for an anchor bolt capable of fixing the sleeve body with a relatively small driving force and a method for manufacturing the sleeve for the anchor bolt.
  • a sleeve main body having a large-diameter hole extending in the axial direction from one end surface and a small-diameter hole extending in the axial direction from the other end surface; By hitting the pin inserted into the small-diameter hole in the axial direction, the circular intersection edge where the cylindrical inner surface of the large-diameter hole intersects the closed end surface and the circular intersection edge where the cylindrical inner surface of the small-diameter hole intersects the closed end surface are connected.
  • the first material having a circular cross section is inserted into the molding hole formed in the mold and inserted into the molding hole through the opening.
  • the extruded material is inserted into the forming hole with one end face first, and a second press-fitting punch having a circular cross section inserted into the inside from the opening of the forming hole is pressed against the center of the other end face of the material.
  • a configuration comprising a step of cutting in the axial direction from the other end surface of the main body and forming a slit in the other end portion of the sleeve main body and the small diameter side end portion of the wedge body is adopted.
  • the sleeve body When fixing the anchor bolt sleeve having the above-described structure, the sleeve body is inserted into the lower hole formed in the concrete with the other end having the small-diameter hole formed first, and the sleeve body is inserted into the lower hole. In the accommodated state, a rod is inserted into the large-diameter hole, and the wedge body is caused to enter the small-diameter hole by driving the rear end of the rod.
  • the wedge body smoothly enters the small-diameter hole while reducing the diameter, and the large-diameter side end of the wedge body enters the small-diameter hole.
  • the other end of the sleeve body is expanded in diameter, and the split piece formed between the slits is strongly pressed against the inner surface of the lower hole, and the sleeve main body is fixed by pressure contact with the inner surface of the lower hole of the split piece.
  • the wedge body since the wedge body is formed by breaking and separating from the sleeve body, the outer diameter surface is a rough surface. For this reason, when the wedge body enters the small-diameter hole by driving, the wedge body becomes a shrink-fitted state and is integrated with the sleeve body due to the frictional heat of the contact portion with the sleeve body. As a result, the wedge body does not become slack, and a stable fixed state can be obtained in the sleeve body.
  • the wedge body is formed by fracture separation, the separation surfaces are engaged with each other, and the inner diameter of the female screw formed by rolling on the inner diameter surface of the large-diameter hole is smaller than the large-diameter end surface of the wedge body. Therefore, the wedge body is securely held by the sleeve body and is not separated from the sleeve body. For this reason, the work of combining the sleeve main body and the wedge body can be eliminated, and the handling is easy.
  • the small-diameter side end of the wedge body is formed with a slit that divides the small-diameter side end into a plurality in the circumferential direction.
  • the wedge body smoothly enters the small-diameter hole of the sleeve body while the small-diameter side end portion is reduced in diameter, and the sleeve body can be fixed by a relatively small driving force.
  • an anchor bolt sleeve since the sleeve body and the wedge body can be formed from a round shaft-shaped material, an inexpensive anchor bolt sleeve can be obtained.
  • FIG. 1 The perspective view which shows embodiment of the sleeve for anchor bolts concerning this invention 1 is a longitudinal front view of FIG. (I) is a cross-sectional view showing a state in which the anchor bolt sleeve shown in FIG. 1 is inserted into a prepared hole formed in concrete, and (II) is a cross-sectional view showing a fixed state of the anchor bolt sleeve.
  • Sectional view with the material set in the mold hole Sectional view showing the molded state of large-diameter hole Sectional view of the material with large diameter holes set in the mold hole Sectional view showing the molded state of the small diameter hole Sectional view of the state in which the flesh between the closed end faces of the large-diameter hole and small-diameter hole is broken and separated (I) is a longitudinal front view showing the formation of slits, (II) is a longitudinal side view of (I). Sectional drawing which shows the formation state of an internal thread
  • the anchor bolt sleeve A includes a metal sleeve body 1 and a metal wedge body 11 held in the sleeve body 1.
  • the sleeve body 1 has a large-diameter hole 2 extending in the axial direction from one end surface and a small-diameter hole 3 extending in the axial direction from the other end surface.
  • Each of the large-diameter hole 2 and the small-diameter hole 3 is formed by a homer process to be a blind hole, and the meat portion remaining between the closed end surfaces of the large-diameter hole 2 and the small-diameter hole 3 is conical by striking from the small-diameter hole 3.
  • the meat part that is broken and separated into a trapezoidal shape and is broken and separated is the wedge body 11.
  • the outer diameter surface 12 of the wedge body 11 and the inner diameter surface of the hole portion between the large diameter hole 2 and the small diameter hole 3 of the sleeve body 1 are broken surfaces, and the sleeve body 1 is engaged by the engagement of minute irregularities on the broken surface.
  • the wedge body 11 is held on the surface.
  • a female screw 4 having an effective inner diameter surface is formed by rolling.
  • the inner diameter of the female screw 4 is smaller than the outer diameter of the large end surface of the wedge body 11. It is said that.
  • a plurality of slits 5 extending in the axial direction by cutting from the other end surface of the sleeve body 1 are formed in the other end portion of the sleeve body 1 and the small diameter side end portion of the wedge body 11 at intervals in the circumferential direction.
  • the mold 21 used in the manufacturing method has a round hole-shaped molding hole 22, and an opening at one end of the molding hole 22 is a protruding sleeve 23 and a protruding pin 24 inserted into the protruding sleeve 23. It is blocked by
  • FIG. 4 shows a state in which a round shaft-shaped material W is inserted into the molding hole 22 of the mold 21, and the material W is used as the anchor bolt sleeve A by the following first to fifth steps. .
  • a first press-in punch 25 having a circular cross section is inserted from the opening of the molding hole 21 and the first press-in punch 25 is pressed against the center of one end surface of the material W.
  • a large-diameter hole 2 made of a blind hole is formed on one end face of the material W by backward extrusion by pushing the first press-fitting punch 25 in the axial direction.
  • FIG. 6 shows a state in which the material W in which the large-diameter hole 2 is formed is inserted into the molding hole 22.
  • a second press-fit punch 26 having a circular cross section inserted into the inside from the opening of the forming hole 22 is pressed against the center of the other end surface of the material W, and the second press-fit punch 26 is As shown in FIG. 7, a small-diameter hole 3 made of a blind hole is formed in the other end surface of the material W by backward extrusion by pushing in the axial direction. At this time, it is preferable to prevent the large-diameter hole 2 from being deformed by projecting into the previously formed large-diameter hole 2 and inserting the pin 24.
  • the second press-fitting punch 26 as a pin is inserted into the small-diameter hole 3 of the raw material W while the raw material W remains in the molding hole 22 of the mold 21, and the large-diameter hole 2 A circular crossing edge where the cylindrical inner surface of the large-diameter hole 2 and the closed end surface intersect with each other by inserting the protruding pin 24 into the shaft and repeatedly moving the protruding pin 24 and the second press-fitting punch 26 in the axial direction.
  • the flesh portion between the large-diameter hole 2 and the closed end face of the small-diameter hole 3 is broken and separated along a virtual conical trapezoidal surface connecting the cylindrical inner surface of the small-diameter hole 3 and the circular intersection edge where the closed end face intersects.
  • a sleeve main body 1 and a truncated cone-shaped wedge body 11 are formed by breaking and separating the flesh, and the wedge body 11 is formed by engagement of minute irregularities formed on the fracture surface. 1 is held.
  • the flesh portion is broken and separated by a striking action in which the protruding pin 24 and the second press-fit punch 26 are alternately moved in the axial direction.
  • the second press-fit punch 26 is set in the axial direction.
  • the meat part may be broken and separated by repeatedly moving the second press-fitting punch 26.
  • the circular blade 27 is rotated in the axial direction from the other end surface of the sleeve body 1, and the sleeve body 1 Slits 5 are formed at the other end and the small diameter side end of the wedge body 11.
  • the slits 5 are cut, the other end surface of the sleeve body 1 is cut into a cross shape to form four slits 5.
  • the number of slits 5 is arbitrary, and at least two or more slits 5 are formed.
  • a female screw 4 having an effective diameter on the inner diameter surface of the large diameter hole 2 of the sleeve body 1 is formed by rolling.
  • the anchor bolt sleeve A shown in FIGS. 1 and 2 is formed.
  • the female screw 4 is formed after the slit 5 is formed.
  • the slit 5 may be cut after the female screw 4 is formed.
  • FIG. 3 (II) shows a fixed state of the sleeve body 1.
  • the wedge body 11 enters the small diameter hole 3 of the sleeve body 1 while the small diameter side end portion is reduced in diameter. It will enter smoothly inside. For this reason, the sleeve body 1 can be fixed by a relatively small driving force.
  • the wedge body 11 is formed by fracture separation from the sleeve body 1, the outer diameter surface is a rough surface. For this reason, when the wedge body 11 enters the small diameter hole 3 by driving, the wedge body 11 is in a shrink-fitted state and integrated with the sleeve body 1 by the frictional heat of the contact portion with the sleeve body 1. become. For this reason, no slack is caused by vibration or the like, and a stable fixed state can be obtained in the sleeve body 1.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dowels (AREA)

Abstract

La présente invention concerne un manchon pour un boulon d’ancrage capable de fixer un corps de manchon avec une force d’enfoncement relativement faible. Un orifice de diamètre important (2) qui s’étend de façon axiale à partir d’une surface d’extrémité du corps de manchon (1) et un orifice de faible diamètre (3) qui s’étend de façon axiale à partir de l’autre surface d’extrémité sont formés sur le corps de manchon (1). L’enfoncement d’une goupille insérée dans l’orifice de faible diamètre (3) du corps de manchon (1) dans la direction axiale rompt et sépare une cale de forme conique tronquée (11) du corps de manchon (1). Une vis femelle (4), qui possède un plan diamétral intérieur de l’orifice de diamètre important (2) en tant que diamètre efficace, est formée sur le plan diamétral intérieur par formage par roulement. Des fentes (5) qui s’étendent de façon axiale à partir de la seconde surface d’extrémité du corps de manchon (1) pour diviser de façon circonférentielle une seconde extrémité du corps de manchon (1) et une extrémité sur un côté de l’orifice de faible diamètre de la cale (11) en une pluralité de pièces sont formées à la seconde extrémité du corps de manchon (1) et l’extrémité sur le côté de l’orifice de faible diamètre de la cale (11). Le corps de manchon (1) est inséré dans un orifice préparatoire (30) formé dans le béton (B), une tige (31) insérée dans l’orifice de diamètre important (2) est frappée pour insérer la cale (11) dans l’orifice de faible diamètre (3). Lors de l’insertion, le diamètre de la cale (11) est réduit pour réduire la force d’enfoncement.
PCT/JP2008/064406 2008-08-11 2008-08-11 Manchon pour boulon d’ancrage et son procédé de fabrication WO2010018615A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2008/064406 WO2010018615A1 (fr) 2008-08-11 2008-08-11 Manchon pour boulon d’ancrage et son procédé de fabrication

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2008/064406 WO2010018615A1 (fr) 2008-08-11 2008-08-11 Manchon pour boulon d’ancrage et son procédé de fabrication

Publications (1)

Publication Number Publication Date
WO2010018615A1 true WO2010018615A1 (fr) 2010-02-18

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PCT/JP2008/064406 WO2010018615A1 (fr) 2008-08-11 2008-08-11 Manchon pour boulon d’ancrage et son procédé de fabrication

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0112894B2 (fr) * 1982-12-02 1989-03-02 Akira Myake
JPH08284263A (ja) * 1995-04-11 1996-10-29 Yoshino Seiki:Kk アンカー部材
JP2006220161A (ja) * 2005-02-08 2006-08-24 Goto Anchor:Kk 拡開アンカー及び拡開アンカーに用いられる拡開ピンの製造方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0112894B2 (fr) * 1982-12-02 1989-03-02 Akira Myake
JPH08284263A (ja) * 1995-04-11 1996-10-29 Yoshino Seiki:Kk アンカー部材
JP2006220161A (ja) * 2005-02-08 2006-08-24 Goto Anchor:Kk 拡開アンカー及び拡開アンカーに用いられる拡開ピンの製造方法

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