JP2009167689A - Anchor bolt setting jig and anchor bolt setting method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an anchor bolt setting jig which facilitates positioning and setting of an anchor bolt for a foundation to a predetermined location inside a pair of forms arranged in a manner being opposed to each other, and to provide an anchor bolt setting method. <P>SOLUTION: The anchor bolt setting jig is formed of: a mounting portion 5 mounted on upper surfaces of the pairing forms 2, 2 in a manner extending between the same; and an abutting portion 6 formed in one body with the mounting portion 5, and having both edges thereof abutted on internal surfaces of the forms 2, 2. The abutting portion 6 has an insertion hole 9 formed therein, into which the anchor bolt 3 is inserted, and the mounting portion 5 has an engaging hole 10 formed therein coaxially with the insertion hole 9, with which the anchor bolt 9 inserted into the insertion hole 9 engages, and therefore the anchor bolt 3 for the foundation can be easily positioned and set to the predetermined location inside the forms 2, 2. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an anchor bolt setting jig and an anchor bolt setting method for setting an anchor bolt at a predetermined position of a formwork for a foundation of a building such as a house.

The thing of patent document 1 and patent document 2 is known as an example of the anchor bolt setting jig | tool which sets an anchor bolt to the predetermined position of the formwork for foundations of a house.
The anchor bolt setting jig described in Patent Document 1 is provided in a substantially U-shaped support part having an insertion hole through which an anchor bolt is inserted, and rising parts at both ends of the support part. The plate is composed of a flange to be placed, and a standing member provided on the support portion for standing the anchor bolt at a predetermined height position.
The anchor bolt setting jig described in Patent Document 2 is composed mainly of a template, a plurality of anchor bolts, an auxiliary plate, and a level adjuster. It is placed on the top end of the mold in a manner to be erected, and an auxiliary plate is embedded so that the concrete of the height adjustment bolt protrudes from the foundation concrete.
Japanese Patent Laid-Open No. 2002-356853 JP 2007-2111514 A

However, the anchor bolt setting jig described in Patent Document 1 and Patent Document 2 has the following problems.
That is, in the anchor bolt setting jig described in Patent Document 1, the anchor bolt is inserted into the insertion hole formed in the support portion, but the anchor bolt is held in a vertical state only by this insertion. Because it is difficult, standing members are used. Since this standing member is composed of a plastic circular tube and a nut that is screwed to the tip of the anchor bolt inserted through the circular tube, the anchor bolt is inserted through the circular tube when setting the anchor bolt. Therefore, it takes time and labor to screw the nut onto the tip.
In addition, in the anchor bolt setting jig described in Patent Document 2, both ends of the template are placed on the top end of the mold in a manner of being laid between the top ends of the mold. Since none of the auxiliary plates underneath is in contact with the inner surface of the opposing mold, positioning of the anchor bolts between the molds is not easy.

  The present invention has been made in view of the above circumstances, and an anchor bolt setting jig and an anchor capable of easily positioning and setting a foundation anchor bolt at a predetermined position inside a pair of molds arranged to face each other. It is an object to provide a bolt setting method.

In order to solve the above-mentioned problems, the invention according to claim 1 is used as a foundation at a predetermined position inside a pair of molds 2 and 2 arranged to face each other, as shown in FIGS. An anchor bolt setting jig 1 for positioning and setting the anchor bolt 3 of
A mounting portion 5 mounted on the upper surfaces of the pair of molds 2, 2 so as to bridge the pair of molds 2, 2;
It is integrally formed with the mounting portion 5 and includes an abutting portion 6 with which both end portions abut against the inner surfaces of the opposing molds 2 and 2.
The contact portion 6 is formed with an insertion hole 9 through which the anchor bolt 3 is inserted,
The mounting portion 5 is characterized in that an engagement hole 10 into which an anchor bolt 9 inserted through the insertion hole 9 is engaged is formed coaxially with the insertion hole 9.

According to the first aspect of the present invention, the anchor bolt 3 is easily inserted into the anchor bolt setting jig 1 by being inserted into the insertion hole 9 of the anchor bolt setting jig 1 and engaging with the engaging hole 10. Can be attached.
Then, both end portions of the contact portion 6 of the anchor bolt setting jig 1 to which the anchor bolt 3 is attached are brought into contact with the inner surfaces of the pair of molds 2 and 2, respectively, and the mounting portion 5 is replaced with the pair And placing the mounting portion 5 on the upper surfaces of the pair of molds 2, 2. Thus, the positioning of the anchor bolt 3 between the molds 2 and 2 can be easily performed.
Furthermore, the anchor bolt 3 can be easily positioned in the vertical direction by rotating the anchor bolt 3 about its axis and adjusting the protruding dimension of the anchor bolt 3 from the mounting portion 5 described above.
Therefore, the anchor bolt 3 for the foundation can be easily positioned and set at a predetermined position inside the pair of molds 2 and 2 that are arranged to face each other.

The invention according to claim 2 is the anchor bolt setting jig 1 according to claim 1,
The thickness of the mounting portion 5 is smaller than the groove width of the threaded portion of the anchor bolt 3, and the inner peripheral edge of the engagement hole 10 formed in the mounting portion 5 is the groove of the threaded portion. It is characterized by engaging with one circumference.

  According to the second aspect of the invention, the inner peripheral edge portion of the engagement hole 10 formed in the mounting portion 5 engages with the outer circumference of the groove portion of the threaded portion of the anchor bolt 3. 10 can be securely engaged with the anchor bolt 3 and the thickness of the mounting portion 5 can be reduced.

The invention according to claim 3 is the anchor bolt setting jig 1 according to claim 1 or 2,
The insertion hole 9 is formed by burring the contact portion 6, and the axial length of the insertion hole 9 is longer than the groove width of the threaded portion of the anchor bolt 3. To do.

  According to the third aspect of the invention, since the insertion hole 9 is formed by burring the contact portion 6, the insertion hole 9 can be easily formed. Further, since the axial length of the insertion hole 9 is longer than the groove width of the threaded portion of the anchor bolt 3, the inner peripheral portion of the insertion hole 9 does not fit into the groove of the threaded portion. It can be smoothly inserted into the insertion hole 9.

The invention according to claim 4 is the anchor bolt setting jig 1 according to any one of claims 1 to 3,
A distance between the cores of the anchor bolts 3 to be arranged is displayed on the surface of the mounting portion 5 described above.

  According to invention of Claim 4, since the distance between the cores of the anchor bolt 3 which should be arrange | positioned is displayed on the surface of the mounting part 5, the distance between the centers of the anchor bolt 3 arrange | positioned is mistaken. It can be set reliably without any problems.

In the fifth aspect of the invention, for example, as shown in FIG. 6, the anchor bolt 3 is arranged to face the anchor bolt setting jig 1 according to any one of the first to fourth aspects. An anchor bolt setting method for positioning and setting at a predetermined position inside a pair of molds 2 and 2,
First, the anchor bolt 3 is attached to the anchor bolt setting jig 1 by being inserted into the insertion hole 9 of the anchor bolt setting jig 1 and engaging with the engaging hole 10.
Next, both end portions of the abutting portion 6 of the anchor bolt setting jig 1 to which the anchor bolt 3 is attached are abutted against the inner surfaces of the pair of molds 2 and 2, respectively, and the placement portion 5 is After placing on the upper surface of the pair of molds 2, 2 so as to span the pair of molds 2, 2, the mounting part 5 is fixed to the upper surface of the pair of molds 2, 2. ,
Next, by rotating the anchor bolt 3 around the axis, the protruding dimension of the anchor bolt 3 from the mounting portion 5 is adjusted.

  According to the fifth aspect of the present invention, the anchor bolt 3 for the foundation can be easily positioned and set at a predetermined position inside the pair of molds 2 and 2 that are arranged to face each other.

  According to the present invention, the anchor bolt is inserted into the insertion hole of the anchor bolt setting jig and engaged with the engagement hole to be attached to the anchor bolt setting jig, and then the anchor to which the anchor bolt is attached. Both end portions of the contact portion of the bolt setting jig are in contact with the inner surfaces of the pair of mold frames, and the mounting portion is bridged on the upper surfaces of the pair of mold frames. After mounting, the mounting portion is fixed to the upper surfaces of the pair of molds, thereby positioning the anchor bolts between the molds, and then rotating the anchor bolts around the axis to fix the anchors. By adjusting the projecting dimension of the bolt from the mounting portion described above, the anchor bolt is positioned in the vertical direction, so that the foundation arm is placed at a predetermined position inside the pair of molds arranged to face each other. Kaboruto can be set to easily position the.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a perspective view showing an anchor bolt setting jig according to the present invention, FIG. 2 is a sectional side view, and FIG. 3 is a front view. 4 is a perspective view showing a state in which the anchor bolt setting jig according to the present invention is set in a mold, and FIG. 5 is an enlarged view of a circle A portion in FIG.

As shown in FIG. 4, the anchor bolt setting jig 1 according to the present invention is used for a foundation at a predetermined position between a pair of molds 2 and 2, that is, between the molds 2 and 2. This is used when the anchor bolt 3 is positioned and set.
In addition, the molds 2 and 2 are used when forming the upright part of the fabric foundation, and are arranged in parallel with each other. Further, a flange portion 2 a is integrally formed at the upper end portion of the mold 2. A reinforcing bar 4 is arranged between the molds 2 and 2.

As shown in FIGS. 1 to 3, the anchor bolt setting jig 1 is formed by bending a single plate material (for example, an iron plate), and includes a placement portion 5 and a contact portion 6. Yes.
The placing portion 5 is placed on the upper surfaces of the flanges 2a and 2a of the pair of molds 2 and 2 so as to span the pair of molds 2 and 2, and is formed in a rectangular shape in plan view. Has been. Folded portions 5a and 5a that are continuously bent at a certain height so as to protrude downward are formed on the edge portion of the mounting portion 5 along the longitudinal direction. One bent portion 5a is formed along the longitudinal direction of the mounting portion 5, but the other bent portion 5a is formed at both ends in the longitudinal direction of the mounting portion 5; A vertical plate 8 is formed.

The abutting portion 6 has both ends abutting against the inner surfaces of the opposing molds 2 and 2 and is integrally formed with the mounting portion 5 described above. The contact portion 6 includes a horizontal plate 7 disposed below the placement portion 5 in parallel with the placement portion 5, and a vertical plate 8 that connects the horizontal plate 7 to the placement portion 5. ing.
The vertical plate 8 extends downward from one edge portion along the longitudinal direction of the placement portion 5, and the length in the left-right direction is shorter than the length in the left-right direction of the placement portion 5. Then, as shown in FIG. 3, the distance from one end of the placement portion 5 to one end of the vertical plate 8, and the distance from the other end of the placement portion 5 to the other end of the vertical plate 8 Are equal.
The horizontal plate 7 extends horizontally from the lower end of the vertical plate 8 in parallel with the mounting portion 5 described above, and as shown in FIG. 2, the tip of the horizontal plate 7 and the tip of the mounting portion 5 (the bent portion 5a). The position in the left-right direction coincides with the front surface of). That is, the mounting portion 5 and the horizontal plate 7 have the same extension length from the vertical plate 6.
As shown in FIG. 3, the horizontal plate 7 and the vertical plate 8 have the same length in the left-right direction, and these left and right ends are in contact with the inner surfaces of the opposing molds 2 and 2, respectively.

As shown in FIGS. 1 and 2, an insertion hole 9 through which the anchor bolt 3 is inserted is formed in a substantially central portion of the horizontal plate 7 constituting the contact portion 6. The insertion hole 9 is formed by subjecting the horizontal plate 7 to burring from the lower surface, and a protruding cylinder portion 9a formed by burring is formed on the upper surface.
The diameter of the insertion hole 9 is substantially equal to or slightly larger than the diameter of the anchor bolt 3, and the axial length of the insertion hole 9 (the length from the lower surface of the horizontal plate 7 to the upper end of the protruding cylinder portion 9 a) ) Is longer than the groove width of the threaded portion of the anchor bolt 3. Therefore, the inner peripheral surface of the insertion hole 9 is not fitted into the groove of the threaded portion of the anchor bolt 3.

An engagement hole 10 is formed at the center of the placement portion 5 coaxially with the insertion hole 9 to be engaged with the anchor bolt 3 inserted into the insertion hole 9.
The thickness of the mounting portion 5 is smaller than the groove width of the threaded portion of the anchor bolt 3, and the engaging hole 10 is formed in the mounting portion 5 by burring. The inner peripheral edge of the engagement hole 10 is engaged with the outer circumference of the groove of the screw portion.
That is, the inner peripheral edge portion of the engagement hole 10 is gradually inclined toward the lower surface side of the mounting portion 5 as it extends in the circumferential direction from a portion that is substantially flush with the upper surface of the mounting portion 5, and the anchor bolt 3. It is equally inclined with the groove of the threaded portion of the anchor bolt 3 and has a length substantially equal to the circumference of the groove of the threaded portion of the anchor bolt 3. As a result, the inner peripheral edge of the engagement hole 10 is engaged with the entire circumference of the groove of the threaded portion of the anchor bolt 3.

  Further, as shown in FIGS. 1 and 5, the distance between the cores of the anchor bolts 3 to be arranged is displayed as “inter-core 675” on the surface of the mounting portion 5 described above. This display is made by engraving, and “675” means 675 mm.

Next, a method for positioning and setting the anchor bolt 3 at a predetermined position inside the pair of molds 2 and 2 that are arranged to face each other using the anchor bolt setting jig 1 having the above-described configuration will be described with reference to FIG. Will be described with reference to FIG.
First, as shown in FIG. 6A, the anchor bolt 3 is attached to the anchor bolt setting jig 1 by being inserted into the insertion hole 9 of the anchor bolt setting jig 1 and engaging with the engaging hole 10. . Further, two nuts 11, 11 are screwed onto the anchor bolt 3.
The lower nut 11 secures the pulling strength of the anchor bolt 3, and the upper nut 11 indicates the upper end of the concrete, that is, the upper end of the foundation. The number of anchor bolts 3 required for the foundation construction is prepared, and the anchor bolt setting jig 1 is attached to each anchor bolt 3 in the same manner as described above.

Next, as shown in FIG. 6 (b), the anchor bolt 3 to which the anchor bolt setting jig 1 is attached is inserted into the inside of the pair of molds 2 and 2 from above, and the anchor bolt setting jig is further fixed. The both ends of the contact portion 6 of the tool 1 are in contact with the inner surfaces of the pair of molds 2 and 2, and the mounting portion 5 is placed on the upper surfaces of the flange portions 2 a and 2 a of the pair of molds 2 and 2. After being placed so as to extend over the molds 2 and 2, the placing part 5 is fixed to the upper surfaces of the flange parts 2 a and 2 a of the pair of molds 2 and 2. This fixing is performed using, for example, a clamp jig 15 referred to as “mantle vise”.
The clamp jig 15 includes a substantially C-shaped main body portion 15a and a pressing portion 15b screwed to the main body portion 15a. By screwing the pressing portion 15b, the distal end portion of the pressing portion 15b and the main body The object is sandwiched between the portions 15a. Therefore, when the mounting part 5 is fixed to the flange part 2a using the clamp jig 15, the main body part 15a connects the flange part 2a and the end of the mounting part 5 placed on the flange part 2a. This is done by screwing the pressing portion 15b.

  Then, as shown in FIG. 6 (c), a predetermined number of anchor bolts 3 are similarly set and fixed inside the mold frames 2, 2 using the anchor bolt setting jig 1. In this case, the distance between the cores of the adjacent anchor bolts 3 and 3 is displayed as “inter-core 675” on the mounting portion 5 of the anchor bolt setting jig 1. To do. Although the clamp jig 15 is not shown in FIG. 6C, all the anchor bolt setting jigs 1 are actually fixed by the clamp jig 15.

Next, as shown in FIG. 6 (d), the anchor bolt 3 is rotated around its axis, thereby adjusting the projecting dimension of the anchor bolt 3 from the mounting portion 5 and the concrete upper end (foundation). The upper nut 11 is turned to adjust the height position of the nut 11 so that the upper end is flush with the upper surface of the upper nut 11.
Finally, the concrete C is placed between the molds 2 and 2 until the upper end surface thereof is flush with the upper surface of the upper nut 11. And after the concrete C hardens | cures, after fixing the clamp jig | tool 15, the construction of a foundation is complete | finished by removing the formwork 2 and 2.

According to the present embodiment, the anchor bolt 3 can be easily attached to the anchor bolt setting jig 1 by being inserted into the insertion hole 9 of the anchor bolt setting jig 1 and engaging with the engaging hole 10. it can.
Then, both end portions of the contact portion 6 of the anchor bolt setting jig 1 to which the anchor bolt 3 is attached are in contact with the inner surfaces of the pair of molds 2 and 2, and the mounting portion 5 is connected to the pair of mold frames 2. , 2, and placed on the upper surface of the pair of molds 2, 2, and the mounting portion 5 is fixed to the upper surfaces of the pair of molds 2, 2 by the clamp jig 15. Thus, the positioning of the anchor bolt 3 between the molds 2 and 2 can be easily performed.
Further, by rotating the anchor bolt 3 attached by the anchor bolt setting jig 1 around the axis, by adjusting the projecting dimension of the anchor bolt 3 from the mounting portion 5 above and below the anchor bolt 3, Positioning can be performed easily.
Therefore, the anchor bolt 3 for the foundation can be easily positioned and set at a predetermined position inside the pair of molds 2 and 2 that are arranged to face each other.

Moreover, since the inner peripheral edge part of the engagement hole 10 formed in the mounting part 5 of the anchor bolt setting jig 1 is engaged with the outer circumference of the groove part of the thread part of the anchor bolt 3, the engagement hole 10 is The mounting portion 10 can be made thin while being securely engaged with the anchor bolt 3.
Furthermore, since the insertion hole 9 of the anchor bolt setting jig 1 is formed by burring the horizontal plate 7 of the contact portion 6, the insertion hole 9 can be easily formed. Further, since the axial length of the insertion hole 9 is longer than the groove width of the threaded portion of the anchor bolt 3, the inner peripheral portion of the insertion hole 9 does not fit into the groove of the threaded portion. It can be smoothly inserted into the insertion hole 9.
Further, since the distance between the cores of the anchor bolts 3 to be arranged is displayed on the surface of the mounting portion 5 of the anchor bolt setting jig 1, the distance between the cores of the anchor bolts 3 to be arranged is not mistaken. Can be set reliably.
Furthermore, since the anchor bolt setting jig 1 is formed by bending a single plate material (for example, an iron plate), the anchor bolt setting jig 1 can be manufactured easily and lightweight, and the anchor bolt 3 can be easily set.

  In the present embodiment, the anchor bolt setting jig 1 according to the present invention has been described as an example in which the anchor bolt setting jig 1 is disposed inside the molds 2 and 2 for forming the fabric foundation. The setting jig 1 can be used even when it is arranged inside an opposing mold for forming an independent foundation or other foundation.

An example of an anchor bolt setting jig concerning the present invention is shown, and it is the perspective view. It is a sectional side view of an anchor bolt setting jig. It is a front view of an anchor bolt setting jig. It is a perspective view which shows the state which set the anchor bolt setting jig | tool to the formwork similarly. It is an enlarged view of the A circle part in FIG. It is process drawing which shows the process of the anchor bolt setting method which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Anchor bolt setting jig 2 Formwork 3 Anchor bolt 5 Placement part 6 Contact part 9 Insertion hole 10 Engagement hole

Claims (5)

An anchor bolt setting jig for positioning and setting a foundation anchor bolt at a predetermined position inside a pair of molds arranged to face each other,
A mounting portion that is mounted on the upper surfaces of the pair of molds so as to span the pair of molds;
An abutting portion formed integrally with the mounting portion and having both end portions abutting against the inner surface of the facing mold;
The contact portion is formed with an insertion hole through which the anchor bolt is inserted,
An anchor bolt setting jig characterized in that an engagement hole into which the anchor bolt inserted into the insertion hole is engaged is formed coaxially with the insertion hole. In the anchor bolt setting jig according to claim 1,
The thickness of the mounting portion is smaller than the groove width of the threaded portion of the anchor bolt,
An anchor bolt setting jig, wherein an inner peripheral edge portion of the engagement hole formed in the mounting portion is engaged with one outer periphery of the groove of the screw portion. In the anchor bolt setting jig according to claim 1 or 2,
The insertion hole is formed by burring the contact portion, and the axial length of the insertion hole is longer than the groove width of the threaded portion of the anchor bolt. jig. In the anchor bolt setting jig according to any one of claims 1 to 3,
An anchor bolt setting jig characterized in that a distance between cores of anchor bolts to be arranged is displayed on the surface of the mounting portion. The anchor bolt set which positions and sets an anchor balt in the predetermined position inside a pair of formwork arrange | positioned facing using the anchor bolt setting jig as described in any one of Claims 1-4 A method,
First, the anchor bolt is attached to the anchor bolt setting jig by being inserted into the insertion hole of the anchor bolt setting jig and engaging with the engaging hole.
Next, both end portions of the contact portion of the anchor bolt setting jig to which the anchor bolt is attached are brought into contact with the inner surfaces of the pair of mold frames, and the mounting portion is placed on the upper surfaces of the pair of mold frames. Then, after placing so as to cross over the pair of molds, fix the placement part to the upper surface of the pair of molds,
Next, the anchor bolt setting method is characterized by adjusting the protruding dimension of the anchor bolt from the mounting portion by rotating the anchor bolt around the axis.

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