JP2005330797A - Anchor bolt holder - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an anchor bolt holder easily and firmly fittable to any foundation width by single fixing work and capable of temporarily holding an anchor bolt rapidly and vertically corresponding to various requested anchor bolt installation positions. <P>SOLUTION: The anchor bolt holder is provided with a first erection member placed straddling upper ends of forms erected facing each other; a latching part formed at one end of the first erection member; a first latching member slidably engaged with the other end of the first erection member; a fixing means for pressing to fix the first latching member from above in the required position of the first erection member; and an anchor bolt holding mechanism slidably engaged with the first erection member between the upper ends of the forms to vertically hold the anchor bolt. When the latching part and the first latching member are clamped inward between the forms, the latching part and the first latching member are latched to each other at the upper ends of the forms and fixed between the upper ends of the forms by a fixing means. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an anchor bolt holder that is fixed across a pair of upper ends of a pair of molds that are erected opposite to each other at the time of building a foundation of a building, and temporarily holds an anchor bolt.

Conventionally, the anchor bolts that connect the foundation and foundation of the building are embedded in the foundation concrete. It was done by the method of burying by hand.
However, reinserting the anchor bolt many times while avoiding reinforcement in the concrete that is in the process of hardening causes a decrease in the fixing power with the concrete, and the anchor bolt sinks under its own weight, so that it is buried in the correct position and vertical state. In spite of the possibility of failure, especially for wooden houses, misalignment of the anchor bolt can be corrected by drilling a fastening hole in the base to match it, and the inclination of the anchor bolt can be corrected after the concrete has hardened. The metal parts that protruded from the foundation were straightened by hitting them with a jig.

However, we have witnessed a number of defective anchor bolts exposed from buildings that have been destroyed by massive earthquakes in recent years, and the importance of foundation construction that is hidden and invisible at the time of completion has been recognized. People who want to build new homes visit the site from the foundation construction stage, and there are many people who confirm the number of anchor bolts buried and the vertical posture, and now home building is not a passive purchase but a customer Establishing a mutual relationship of trust with the contractor has become a condition for building a good home.
For this reason, there is an increasing number of cases in which anchor bolts are accurately temporarily held in advance between the molds before placing concrete by guidance from the construction manager with respect to the anchor bolt embedding work. .
There are various types of such anchor bolt holders, and the following methods are known for fixing them to the mold.
(I)
The base plate (40) holding the anchor bolt is placed so as to straddle the upper end (2) of the formwork, and the base plate (40) and the upper end of the formwork (2) using the clamp (42) having a U-shaped cross section. ) Is fixed between the upper ends of the mold by pressing the butterfly bolt (43). (See Figure 12a)
(B) For the steel mold, the base plate and the upper end of the mold are placed and fixed by the force of the magnets attached to the lower surfaces of both ends of the base plate holding the anchor bolts.
(C)
An anchor plate (45) having a U-shaped cross section formed in accordance with the foundation width constructed in advance is fitted and fixed between the upper ends of the molds. (See FIG. 12b)
Utility model registration No. 3077029

However, these have the following disadvantages.
First, with regard to (a), it is very troublesome to turn your hands to the back side of the upper edge of the formwork at both ends of the base plate that holds the anchor bolts, and tighten the butterfly bolts, causing a reduction in work efficiency. It was.
With regard to (b), since the base plate to which the magnet is attached is simply placed between the upper ends of the steel mold, the fixing work is very simple. However, when the anchor bolt held by the force at the time of placing the concrete is pushed up obliquely, the base plate is lifted, resulting in a problem that the fixing position is shifted.
Furthermore, with respect to (c), the anchor plate can be easily fixed because it is simply fitted from above to the upper end of the mold. However, an anchor plate of each width corresponding to the foundation width to be constructed must be prepared. Moreover, since it is only fitted from the top, the trouble that an anchor bolt inclines with the force at the time of concrete placement as mentioned above arises depending on the case.
As described above, the conventional anchor bolt holder is troublesome in fixing method, troublesome in reworking work due to the displacement of the holder due to the force at the time of placing concrete, and uneconomical that requires metal fittings for various base widths The current situation is that there are many contractors who are still embedding by the rice planting method.

  The present invention has been made in view of such a current situation, and can be easily and firmly fixed according to various foundation widths, and can be quickly and vertically according to various anchor bolt embedding positions required. The purpose is to provide an anchor bolt holder that can temporarily hold the anchor bolt, and it can contribute to the spread of an accurate anchor bolt construction method and the improvement of the embedding accuracy by using more holders.

"First invention"
The anchor bolt holder of the present invention (first invention) for solving the above-mentioned problems is characterized by the following configuration. That is,
An anchor bolt holder that is fixed across the upper ends of the molds erected opposite to each other,
A first erection member placed across the upper end of the mold,
A latching portion formed at one end of the first erection member;
A first hook member slidably engaged with the other end of the first erection member;
Fixing means for pressing and fixing the first hooking member from above at a required position of the first erection member;
An anchor bolt holding period mechanism that is slidably engaged with the first erection member between the upper ends of the mold and holds the anchor bolt vertically;
When the latching portion and the first latching member are clamped inwardly between the molds, they are latched at the upper ends of the molds and fixed between the upper ends of the molds by the fixing means. It was set as the characteristic characterized by this.

According to the present invention (the first invention), the latching portion formed at one end of the erection member placed between the upper ends of the mold is latched at the upper end of the mold and slidably engaged at the other end of the erection member. The holding member is held by the pressing and fixing means from above the hooking member while hooking the hooked hooking member on the upper end of the other moldwork and holding the hooking part and the hooking member inwardly between the molds. Is fixed between the upper ends of the formwork.
Thereby, a holder can be attached between mold form upper ends by one fixing operation according to various foundation widths.
Moreover, since the folding | returning part is provided in the outward of the upper end of a formwork, the state which a latching part and a latching member each latch in the direction between mold forms in the folding | returning part lower end occurs. In that state, the hooking portion and the hooking member are prevented from moving inwardly between the molds and the anchor bolt is lifted by the force of the cast concrete, and the hooking portion and the hooking member above are generated. Therefore, the holder can be firmly attached to the upper end of the mold. (See Figure 6)
Further, since the anchor bolt holding portion slidably engaged with the erection member after fixing the holding tool can be adjusted to the required position, it is easy to reliably adjust the position in the horizontal direction.

"Second invention"
The anchor bolt holder of the present invention (second invention)
An anchor bolt holder that is fixed between upper ends of the molds that are erected in a planar T shape or L shape between the upper ends of the molds that are erected opposite to each other,
A second erection member slidably engaged with the first erection member fixed between the upper ends of the formwork by the fixing means in a substantially orthogonal posture;
A second hooking member slidably engaged with the other end of the second erection member;
Fixing means for pressing and fixing the second hooking member from above at a required position of the second erection member;
An anchor bolt holding mechanism that is slidably engaged with the second erection member and holds the anchor bolt vertically;
When the second latching member is pressed toward the first erection member, it is latched at the upper end of the mold located substantially parallel to the first erection member, and the T-shape or L by the fixing means. It was set as the structure characterized by fixing between character-shaped formwork upper ends.

The embedded position of the anchor bolt where the foundation shape to be constructed is connected to the hole-down hardware at the T-shaped part or corner part is 30 mm outside from the surface of the column. For this reason, the upper end of the formwork may be vertically combined in the horizontal direction of the embedding position, and there is a situation where the anchor bolt holder cannot be fixed in a posture straddling the upper end of the formwork.
According to the present invention (second invention), the second erection member can be slidably assembled in a substantially orthogonal posture with respect to the first anchor bolt holder. The anchor bolt holder that achieves the effect of the first invention can be attached even at a location that does not exist, and the range of use is expanded.

"Third invention"
The anchor bolt holder of the present invention (third invention)
The anchor bolt holding mechanism,
An engagement frame having a substantially same cross-sectional outline as the cross-sectional outline of the erection member and slidably engaged;
Fixing means for fixing the engagement frame at a required position of the erection member;
An anchor bolt holding portion that holds the anchor bolt vertically in a state of being inserted,
Fixing means for fixing the anchor bolt to the anchor bolt holding portion,
In the engagement frame and the anchor bolt holding portion, the projected sliding direction of the engagement frame and the axial direction of the anchor bolt holding portion are orthogonal, and the upper edge of the anchor bolt holding portion is the engagement. It is characterized by being respectively disposed via a reinforcing member below the same horizontal plane as the upper end of the frame.

The anchor bolt holder that is usually fixed across the upper end of the formwork has a structure that temporarily holds the anchor bolt on the straight line connecting the fixing points, so the back side of the concrete molding surface is where the fixture is attached. If there is a reinforcing bar provided on the anchor bolt, it may be difficult to fix the anchor bolt holder.
In addition, when concrete is driven up to the upper end of the mold, the anchor bolt must be held at a position above the upper end of the mold.
According to the present invention (the third invention), the anchor bolt holding portion for inserting and holding the anchor bolt is disposed at a position away from the straight line connecting the fixing points of the anchor bolt holder body. A holding tool can be attached at a position between the molds that missed the crosspiece. (See Figure 8)
Thereby, the attachment location of the anchor bolt holder is not limited by the positions of uneven reinforcing bars arranged when the mold is erected.
Furthermore, since the anchor bolt holding part is disposed at a position below the upper surface of the engagement frame, the anchor bolt is not buried in the cast concrete by turning the engagement frame upside down. Can be maintained, making it more practical in the field and expanding the range of use. (See Figure 10)

"Fourth invention"
The anchor bolt holder of the present invention (fourth invention)
The anchor bolt holding part,
It is formed of a cylindrical member into which the anchor bolt can be inserted, and the ratio of the inner diameter of the cylindrical member and the length from the upper edge to the lower edge of the cylindrical member is in the range of 1: 3 to 1: 6. It is characterized by being.

According to the present invention (fourth invention), the anchor held by the force of the cast concrete to such an extent that the lower edge of the tubular member can be prevented from coming into contact with the top end surface of the cast concrete in a normal case. The anchor bolt can be firmly held in an optimum state so that the bolt does not tilt.

"Fifth invention"
The anchor bolt holder of the present invention (the fifth invention)
A pair of pressing members drilled in the auxiliary member in a posture sandwiching the side surface of the anchor bolt;
At least a pair of opposite flanges provided at the side ends of the pressing member;
Fixing means for tightening and fixing the collar portion,
The pressing member is pressed against at least a first region on the side surface of the anchor bolt and a second region facing the first region according to the tightening degree of the flange portion.

According to the present invention (the fifth invention), it is possible to hold anchor bolts having different thicknesses only by changing the tightening degree of the collar portion, and therefore the range of use in the field is expanded.

The present invention (first to fifth inventions) may be applied alone as necessary, or may be applied in combination with each other.

As described above, the anchor bolt holder of the present invention has the following excellent effects.
(A) It can be easily and firmly attached to any foundation width with a single fixing operation, leading to an improvement in work efficiency.
(B) Since the foundation width can be easily adjusted to a required position in both the horizontal direction and the vertical direction, the embedment accuracy of the anchor bolt can be improved.
(C) The anchor bolt can be temporarily held in the T-shaped part or the corner part between the molds where the outside of the upper end of the mold does not exist at one end.
(D) The anchor bolt holder can be attached between the upper ends of the molds while missing the positions where the uneven reinforcing bars are present.
(E) The anchor bolt can be temporarily held between the molds even in a casting situation where the distance between the top end surface of the cast concrete and the upper end of the molds cannot be maintained.
(F) It can hold any thickness anchor bolt.
For this reason, the anchor bolt holder of the present invention is extremely practical in the field, can quickly hold the anchor bolt at an accurate position quickly, and it is troublesome to embed anchor bolts by using a conventional holder. Therefore, it can contribute to the spread of an accurate anchor bolt construction method using a holder and the improvement of the embedding accuracy.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
First, as shown in FIG. 1 and FIG. 2, the first anchor bolt holder (20A) is provided with a latching portion (11) at one end of the first erection member (10A) placed between the upper ends of the mold. The other end is engaged with the first latching member (12A) so as to be slidably fixed in accordance with the base width, and between the latching portion (11) and the first latching member (12A). An anchor bolt holding mechanism for holding the anchor bolt (6) vertically is provided.

As shown in FIG. 3, the first erection member (10A) has one end of a square bar (30a) made of metal on the upper surface of a latching part (11) bent at an acute angle at the approximate center of a horizontal metal plate. Is mounted and fixed by welding. The first hooking member (12A) has one end bent at an acute angle at the approximate center of a horizontal metal plate that is narrower than the hooking part (11), and the square bar (30a) crosses the horizontal plane. The lower surface of the engagement frame (31a) obtained by cutting a square pipe made of metal having a substantially same cross-sectional outline line as the surface outline line to an appropriate length is welded and fixed.
Further, a screw hole (32a) is provided on the upper surface of the engagement frame (31a), and a nut (33a) is welded and fixed around the screw hole (32a), and a square bar (30a) is inserted through the engagement frame (31a). In this state, the first hooking member (12A) is pressed and fixed to the first erection member (10A) by screwing the butterfly bolt (34a) into the nut (33a).

As shown in FIG. 5, the right angle of the lower surface of the engagement frame (31b) obtained by cutting a metal square pipe having a cross-sectional outline substantially the same as the cross-sectional outline of the square bar (30a) into an appropriate length. A reinforcing metal member (13) that is cut to an appropriate length along the two sides sandwiched between two L-shaped cross sections of the reinforcing member (13) is welded and fixed to a metal round pipe with an appropriate length. The cylindrical member (14), in which a screw hole (32f) is provided in the middle of the side surface and a nut (33f) is fixed by welding around the side surface, is reinforced so that the longitudinal direction of the side surface is vertical. The outer end of the member (13) is fixed by welding, and the cylindrical member (14) is projected on the sliding direction (D2) of the engaging frame (31b) and the axial direction (D1) of the cylindrical member (14). ) Are orthogonal, and the upper edge of the cylindrical member (14) is the same as the upper end of the engagement frame (31b). Are disposed respectively below the (L1). (See Figure 9)
The inner periphery of the cylindrical member (14) is set in advance to be slightly larger than the outer periphery of the anchor bolt (6) to be inserted. By screwing the butterfly bolt (34f) to the nut (33f), The anchor bolt (6) is slidably pressed and fixed in the vertical direction. (See Figures 1 and 3)

As shown in FIG. 4, a nut (33b) is welded and fixed to one side of the engagement frame (31b) around a screw hole (32b) through which the butterfly bolt (34b) can be inserted. By tightening the butterfly bolt (34b) with the square bar (30a) inserted into the engagement frame (31b), the engagement frame (31b) is slidably pressed and fixed to the square bar (30a) at a required position. . (See Figure 4)

Next, the 2nd anchor bolt holder of this invention is demonstrated based on FIG.
As shown in FIG. 7, in the second anchor bolt holder (20B) of the present invention in which the basic shape is implemented in the T-shaped portion, the second erection member (10A) is slidable on the first erection member (10A). 10B) is engaged with one end, and the other end is engaged so that the second hooking member (12B) can be slidably fixed, and the second erection member (10B) is anchored with the anchor bolt (6). An anchor bolt holding mechanism that holds the bolt vertically is provided.

The second erection member (10B) is based on a form constituting the first anchor bolt holder (20A). The difference is that one end of the square bar (30b) is slidably engaged with the first erection member (10A) in a substantially orthogonal posture.
On one end face of the square bar (30b), an engagement frame (a metal square pipe having a cross-sectional outline substantially the same as the cross-sectional outline of the square bar (30a) cut to an appropriate length ( The side surface of 31c) is fixed by welding vertically.
Further, a nut (33c) is provided around a screw hole (32c) through which the butterfly bolt (34c) can be inserted on the side surface facing the side surface. By tightening the butterfly bolt (34c) with the square bar (30a) inserted through the engagement frame (31c), the second erection member (10B) is perpendicular to the erection direction of the first erection member (10A), Moreover, it is slidably pressed and fixed.
The square bar (30b) is provided with the same anchor bolt holding mechanism as that of the first anchor bolt holder (20A).

Next, an anchor bolt holding form according to the fifth invention will be described with reference to FIG.
As shown in FIG. 11, a pair of pressing members (16A, 16B) which are arranged in a posture sandwiching the side surface of the anchor bolt and have flexibility are drilled in the auxiliary member (13), and the pressing members (16A , 16B) a pair of opposed flanges (35a, 35b) protrude from the end sides.
Furthermore, nuts (33g, 33h) are welded and fixed around screw holes (32g, 32h) into which the butterfly bolts (34g) can be inserted, respectively, on the outer surfaces of the flanges (35a, 35b). The anchor bolt (6) is held by the surface pressure contact of the pressing members (16A, 16B) by screwing the butterfly bolt (34g).

It should be noted that the square bars (30a, 30b) provided on the anchor bolt holders (20A, 20B) of the present invention have a thickness on the lower surface of the engagement frame (31a, 31d), etc. so as to be installed horizontally at both ends thereof. In consideration of the above, the plate thickness of the latching portion (11) and the latching members (12A, 12B) is set in advance.
In addition, the square bars (30a, 30b) shall have the same outer circumference, and the inner circumferences of the engagement frames (31a, 31b, 31c, 31d, 31e) should be unified to be slightly larger to match the outer circumference of the square bars. This creates compatibility and makes it more practical.

First, as shown in FIGS. 1 and 3, the anchor bolt (6) is inserted into the tubular member (14), and the butterfly bolt (34f) is tightened and temporarily held at an appropriate height.
Next, the locking portion (11) is hooked to the folded portion lower end (4) of the folded portion (3) provided outside the upper end of the mold frame (2) toward the inner direction between the mold frames, While the engagement frame (31a) is inserted into one end of the square bar (30a), the first hook member (12A) is hooked on the lower end (4) of the folded portion provided on the upper end (2) of the other mold. The butterfly bolt (34a) is tightened while the latching portion (11) and the first latching member (12A) are clamped inwardly between the molds.
At this time, the lower end (4) of the folded portion prevents the inward movement (F1) between the molds, and the hook portion (11) and the first portion that are generated by the operation that the anchor bolt is lifted by the force of the cast concrete. Because the force that prevents the upward movement (F2) of the latching member (12A) works, the anchor bolt holder can be firmly attached between the upper ends of the molds, and between the molds that construct various foundation widths Accordingly, the first anchor bolt holder (20A) can be firmly attached to any foundation width. (See Figure 6)

Moreover, since only one butterfly bolt (34a) is tightened from above, it is screwed into the clamp (42) in a posture in which both hands are turned to the lower side of the upper end of the formwork (2) at both ends as shown in FIG. 12a. Faster and easier than the method of tightening the butterfly bolt (43).

As shown in FIGS. 8 and 9, the cylindrical member (14) is anchored in the first anchor bolt holder of the present invention even when the reinforcing bar (5) is in a straight line for installing the anchor bolt (6). Since it is arrange | positioned in the position away from the straight line which connected the fixing location of a bolt holder, a holder can be attached between the mold upper ends which missed the reinforcement crosspiece.
In addition, since the width of the first hooking member (12A) is narrower than the hooking part (11) so that the length of the side hooked at the lower ends (4) of the left and right folded parts changes, for example, an anchor When the cylindrical member (14) is aligned with the position where the bolt (6) is to be embedded, and there is a reinforcing bar (5) at the fixed position to the upper end of the mold (2), the first erection member (10A) is attached. Try to fix it by rotating 180 degrees.
If this is not possible, once remove the engagement frame (31b) from the square bar (30a), rotate the anchor bolt holding part (15) 180 degrees horizontally, and re-engage the square bar (30a). Secure the retainer.
In this manner, the first anchor bolt holder can be flexibly fixed between the upper ends of the molds while changing the positions of the reinforcing bars (5) arranged unevenly.

Also, as shown in FIG. 9 and FIG. 10, even in a placement situation where a sufficient distance cannot be taken between the top end surface (8) of the concrete to be placed and the upper end of the mold, the engagement frame (31b) is turned upside down. By engaging with the square bar (30a), the cylindrical member (14) can be prevented from coming into contact with the concrete top end face (8), and the anchor bolt holding part (15) is buried in the concrete. Since the problem can be solved, the range of use in the field is wide and practicality is very high.

Next, as shown in FIGS. 1 and 3, the horizontal position of the anchor bolt is adjusted while sliding the engagement frame (31b), and the butterfly bolt (34b) is tightened and fixed. At this time, the square bar (30a) is installed horizontally with respect to the upper end (2) of the mold, and the cylindrical member (14) is fixed vertically via the reinforcing member (13). ) Is maintained, and the anchor bolt (6) can be easily held vertically.
In addition, since it can be slid without any trouble of rattling by engaging a square pipe having substantially the same inner circumference as the outer circumference of the square bar (30a), it can be quickly aligned.
Finally, by holding the upper end of the anchor bolt (6) with one hand, loosen the butterfly bolt (34f), adjust the height position, and then tighten the butterfly bolt (34f) again, the anchor bolt (6) becomes the tubular member ( 14) Since it is pressed against the inner surface, it is pressed and fixed in a state where the anchor bolt (6) is firmly held at a required position in the vertical direction.
Thereby, the malfunction that an anchor bolt (6) inclines with the force at the time of placing concrete does not arise.

When removing the first anchor bolt holder (20A), first the butterfly bolts (34a, 34b, 34f) are loosened.
Next, the first hooking member (12A) is removed from the lower end (4) of the folded portion, and the first erection member (10A) is held while holding the engagement frame (31b) with one hand so that the anchor bolt (6) does not move. The latching portion (11) is removed from the lower end (4) by sliding outward, and the first erection member (10A) and the first latching member (12A) are lifted straight up to form a cylindrical member ( By removing 14) from the anchor bolt (6), the first anchor bolt holder (20A) can be quickly and easily removed from between the upper ends of the formwork.
When storing, it is possible to cause problems such as each member not being removed simply by lightly tightening the butterfly bolt (34a) after bringing the engagement frames (31a, 31b) toward the latching portion (11). It is also very convenient to carry and store.

FIG. 7 shows a usage example of the second anchor bolt holder (20B) that can be used even when the basic shape is a T-shaped portion.
There is a situation in which there is no folded portion (3) provided outside the upper end of the formwork in the horizontal direction at the position where the anchor bolt (6) connected to the hole-down hardware is embedded. In such a case, the first erection member (10A) of the present invention can be dealt with by replacing the upper end of the formwork that does not exist.

First, the square bar (30a) is inserted into the engagement frame (31c), the second installation member (10B) is assembled to the first installation member (10A), and the engagement frame (31b) is attached to the square bar (30b). After that, the anchor bolt (6) is inserted into the cylindrical member (14) and fixed with the butterfly bolt (34f), and the first erection member (10A) is attached to the T-shaped portion as described above. Fix between the upper edges of the formwork.
Next, while sliding the engagement frame (31c), it is fixed with the butterfly bolt (34c) in accordance with the first horizontal position, and the engagement frame (31d) on the second hooking member (12B) is cornered. The second hooking member (12B) is hooked to the lower end (4) of the folded portion while being inserted through the rod (30b), and is fixed with the butterfly bolt (34d). Next, while the engagement frame (31b) is slid, it is fixed with the butterfly bolt (34b) in accordance with the second horizontal position, and the height of the anchor bolt is adjusted. Thereby, an anchor bolt can be hold | maintained in the required position in the T-shaped part and corner part of a formwork, and a use range spreads.

Furthermore, by using the anchor bolt holding part (15B) as shown in FIG. 11 for the anchor bolt holding tool (20A / B), it is possible to hold even anchor bolts having different diameters, so that it is more practical. Become.

Although the said embodiment was demonstrated, embodiment of this invention is not restricted to this, A various change is possible.
For example, in the above-described embodiment, an example in which the basic shape is installed with a straight portion, a T-shape portion, and a corner portion has been described. However, in the cross portion, the pair of first erection members (10A) is replaced with the upper end of the mold portion. The first anchor bolt holder (20A) can also be attached while being arranged in parallel.
The anchor bolt holder of the present invention is not limited to a metal as long as it is a material that has strength against the weight of the anchor bolt and the force of the cast concrete.
In addition, for wooden molds that do not have a folded part formed on the mold gripping part, the size of the latching part or the latching member is set so that it can be latched at the lower end of the outer surface of the crosspiece provided on the outer periphery. Change it.

The perspective view which shows the use condition of the anchor bolt holder by embodiment of this invention The side view which shows the use condition of the anchor bolt holder by embodiment of this invention The perspective view which shows the 1st anchor bolt holder of this invention The top view which shows the 1st anchor bolt holder of this invention The bottom view which shows the 1st anchor bolt holder of this invention Explanatory drawing for demonstrating the fixed state to the formwork by this invention The perspective view which shows the use condition of the 2nd anchor bolt holder by embodiment of this invention Explanatory drawing for demonstrating the positional relationship of the anchor bolt holder and crosspiece by this invention Explanatory drawing for demonstrating arrangement | positioning relationship between the engagement frame of this invention, and a cylindrical member The side view which shows the other use condition of the anchor bolt holder by embodiment of this invention The perspective view which shows the other anchor bolt holding | maintenance form by this invention Side view showing conventional technology Side view showing conventional technology

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Concrete molding board 2 Form frame upper end 3 Folding part 4 Folding part lower end 5 Reinforcement bar 6 Anchor bolt 7 Casting concrete 8 Casting concrete top end surface 10A 1st erection member 10B 2nd erection member 11 Hanging part 12A 1st latching Member 12B Second hook member 13 Reinforcement member 14 Cylindrical member 15 (A, B) Anchor bolt holding portion 16 (A, B) Press member 20A First anchor bolt holder 20B Second anchor bolt holder 30 ( a, b) Square bar 31 (a, b, c, d, e) Engagement frame 32 (a, b, c, d, e, f, g, h) Hole 33 (a, b, c, d, e, f, g, h) Nut 34 (a, b, c, d, e, f, g) Thumbscrew 35 (a, b) Butt

Claims (5)

An anchor bolt holder that is fixed across the upper ends of the molds erected opposite to each other,
A first erection member placed across the upper end of the mold,
A latching portion formed at one end of the first erection member;
A first hook member slidably engaged with the other end of the first erection member;
Fixing means for pressing and fixing the first hooking member from above at a required position of the first erection member;
An anchor bolt holding period mechanism that is slidably engaged with the first erection member between the upper ends of the mold and holds the anchor bolt vertically;
When the latching portion and the first latching member are clamped inwardly between the molds, they are latched at the upper ends of the molds and fixed between the upper ends of the molds by the fixing means. First anchor bolt holder. An anchor bolt holder that is fixed between upper ends of the molds that are erected in a planar T shape or L shape between the upper ends of the molds that are erected opposite to each other,
A second erection member slidably engaged with the first erection member fixed between the upper ends of the formwork by the fixing means in a substantially orthogonal posture;
A second hooking member slidably engaged with the other end of the second erection member;
Fixing means for pressing and fixing the second hooking member from above at a required position of the second erection member;
An anchor bolt holding mechanism that is slidably engaged with the second erection member and holds the anchor bolt vertically;
When the second latching member is pressed toward the first erection member, it is latched at the upper end of the mold located substantially parallel to the first erection member, and the T-shape or L by the fixing means. The 2nd anchor bolt holder fixed between character-shaped formwork upper ends. The anchor bolt holding mechanism,
An engagement frame having a substantially same cross-sectional outline as the cross-sectional outline of the erection member and slidably engaged;
Fixing means for fixing the engagement frame at a required position of the erection member;
An anchor bolt holding portion that holds the anchor bolt vertically in a state of being inserted,
Fixing means for fixing the anchor bolt to the anchor bolt holding portion,
In the engagement frame and the anchor bolt holding portion, the projected sliding direction of the engagement frame and the axial direction of the anchor bolt holding portion are orthogonal, and the upper edge of the anchor bolt holding portion is the engagement. The anchor bolt holder according to claim 1 or 2, wherein the anchor bolt holder is disposed respectively via a reinforcing member below a horizontal plane that is the same as the upper end of the frame. The anchor bolt holding part,
It is formed of a cylindrical member into which the anchor bolt can be inserted, and the ratio of the inner diameter of the cylindrical member and the length from the upper edge to the lower edge of the cylindrical member is in the range of 1: 3 to 1: 6. The anchor bolt holder according to claim 1, claim 2 or claim 3. A pair of pressing members drilled in the auxiliary member in a posture sandwiching the side surface of the anchor bolt;
A pair of at least facing flanges provided at the side ends of the pressing member;
Fixing means for tightening and fixing the collar portion,
4. The anchor bolt according to claim 1, wherein the pressing member is pressed against at least a first region on a side surface of the anchor bolt and a second region facing the first region according to a tightening degree of the flange portion. Retaining tool.

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