JPS639621Y2 - - Google Patents

Description

[Detailed Description of the Invention] Technical Field This invention relates to an anchor bolt support for supporting an anchor bolt buried in foundation concrete for a house at a predetermined position in a concrete formwork.

Conventionally, as shown in FIG. 1, for example, as shown in FIG. It has been proposed that a through hole 3 is formed, and an anchor bolt 4 is inserted and supported through the wrapper tube 2 and the through hole 3. After the concrete is formed, the conical recess B (see Fig. 5) formed by the Ruppa pipe 2 releases the root part of the anchor bolt 4, allowing the mold steel A to be installed on the top surface of the foundation concrete C. When attaching the anchor bolt 4, the position of the anchor bolt 4 can be finely adjusted.

However, according to such a conventional configuration, since the support plate 12 and the wrapper tube 2 are fixed, even if only the wrapper tube 2 is damaged, not only is it wasteful that the support plate 1 must be replaced, but also the diameter In order to support anchor bolts of different diameters, it was necessary to prepare other types of support plates 1 equipped with wrapper tubes 2 corresponding to the respective diameters.

Purpose This invention was made to solve the above-mentioned conventional inconveniences, and its purpose is to removably attach the support body that supports the anchor bolt through the support plate. If the anchor bolt is damaged, you can replace it with a new one, and when supporting an anchor bolt with a different diameter, you can replace the support body according to the diameter. An object of the present invention is to provide an anchor bolt support device that provides a suitable anchor bolt support.

First Embodiment Hereinafter, a first embodiment of this invention will be described with reference to FIGS. 2 to 5, in which this invention is embodied in a support tool that can support two anchor bolts at a joint of shaped steel.

The support plate 6 of this embodiment is formed of a steel plate into a rectangular shape, and mounting pins 7 are fixed to each corner. As shown in FIG.
A pair of concrete formworks 8 installed facing each other
It is designed to be mounted between the two.

As shown in FIG. 2, a pair of through holes 11 are formed approximately at the center of the support plate 6, and fitting recesses 12 are cut out at positions facing each other.
Further, a pair of holding portions 14 are formed in each of the through holes 11 by slightly cutting and raising the opposing peripheral edge portions using the slits 13.

On the other hand, the support main body 15 molded from metal or synthetic resin has a head 16 that fits into the through hole 11.
and a substantially inverted truncated cone-shaped buried part 17 that is buried in the concrete when concrete is poured, and an insertion hole 18 for inserting an anchor bolt extending in the vertical direction is provided approximately in the center of both parts. ing. Further, a through hole 11 is formed on the outer peripheral surface of the head 16.
A pair of protrusions 19 are formed as attachment parts corresponding to the fitting recesses 12, and as shown in FIG. The holding portion 14 of the through hole 11 is held between the holding portions 14 .

When assembling the support main body 15 configured as described above to the support plate 6, as shown in FIG.
Align the protrusion 19 and the fitting recess 12 to expose the head 16 of the support body 15 on the upper surface side of the support plate 6, and in this state rotate the support body 15 90 degrees counterclockwise in the figure. For example, the support main body 15 is tightened and fixed to the support plate 6 by the elasticity of the holding portion 14.
Next, the anchor bolt 4 is inserted into the insertion hole 18 from the lower side of the support main body 15, the upper end threaded portion 4a of the anchor bolt 4 is projected by a desired length, and the nut 5 is tightened. is supported by the support plate 6.

Then, as shown in FIG. 3, after this support plate 6 is mounted at a predetermined position on the concrete formwork 8 by fitting each mounting pin 7 and the pin hole 10, concrete is placed between both concrete formworks 8. When the anchor bolt 4 is driven and the buried portion 17 of the support body 15 is buried, the anchor bolt 4 is buried at a predetermined position in the foundation concrete C.

Further, after concrete forming, the nuts 5 are removed from the anchor bolts 4, and the support body 15 is removed from the concrete formwork 8 together with the support plate 6.
By doing this, as shown in Fig. 5, a recess B having an almost inverted truncated cone shape is formed on the upper surface of the foundation concrete C, and the root portion of the anchor bolt 4 is released from the concrete, so that the recess B is indicated by the chain line in the figure. As shown,
When installing and fixing the shaped steel A on the upper surface of the foundation concrete C, the threaded portion 4a of the anchor bolt 4 can be slightly adjusted in position forward and backward and left and right.

Moreover, according to the anchor bolt support of this embodiment, the support main body 15 is detachably attached to the support plate 6, so if the support main body 15 becomes damaged and becomes unusable, Only the support main body 15 can be replaced with a new one while leaving the support plate 6 as is. In addition, when supporting anchor bolts with different diameters, insertion holes 18 with different inner diameters may be used.
By replacing the support main body 15 having the following, it is possible to support other types of anchor bolts 4 with one support plate 6, unlike the conventional case.

Second Embodiment Next, a second embodiment of this invention will be described based on FIG. This embodiment differs from the previous embodiments in the structure for attaching and detaching the support body 15 and the support plate 6. That is, a pair of screw holes 23 for inserting screws 22 are provided in the vicinity of the through hole 11 formed in the support plate 6 . The support main body 15 also includes a head portion 24 that fits into the through hole 11 and a buried portion 17.
A screw hole 26 is provided on the upper surface of the buried portion 17 as a mounting portion into which both the screws 22 are screwed. Therefore, in this embodiment, the support body 15 can be easily attached to and detached from the support plate 6 by tightening and removing both screws 22, thereby achieving the same effect as the previous embodiment.

Third Embodiment FIG. 7 shows a third embodiment of this invention, in which a support cylinder portion 28 is formed to protrude upward from the support plate 6, and a female screw portion 29 is formed on the inner peripheral surface thereof. has been done. In addition, the head 30 of the support main body 15
A male threaded portion 31 is formed on the outer circumferential surface of the support body 15, and the female threaded portion 29 and the male threaded portion 31 are screwed together, so that the support main body 15 is removably attached to the support plate 6.

Fourth Embodiment Next, the fourth embodiment embodying this invention will be explained as the eighth embodiment.
This will be explained based on FIG. 9 and FIG.

A plurality of locking pawls 33 are formed on the periphery of the through hole 11 formed in the support plate 6 so as to protrude obliquely inwardly and upwardly. Further, the support main body 15 in this embodiment is molded from an elastically deformable flexible material such as rubber or soft synthetic resin, and a mounting portion 34 that fits into the through hole 11 is integrally formed at the upper end thereof. There is. When the attachment portion 34 is pushed into the through hole 11 as shown in FIG. 9, each of the locking claws 33 bites into the outer peripheral surface of the attachment portion 34 to prevent the support main body 15 from falling off. It's becoming like that.
In addition, when the support main body 15 is to be removed, the mounting portion 34 may be pressed and slightly deformed.

Fifth Embodiment FIGS. 10 and 11 show a fifth embodiment of this invention, in which a through hole 1 formed in a support plate 6 is shown.
A plurality of locking protrusions 37 are formed on the peripheral edge of 1 to protrude inward. Further, the support main body 15 is molded from a flexible material as in the fourth embodiment, and a head 38 having an outer diameter larger than the distance between the protruding ends of the locking protrusions 37 is formed at its upper end. At the same time, a mounting groove 40 is formed between the head portion 38 and the buried portion 17 at the lower end. At the time of installation, the head 38 resists the interference of each locking protrusion 37.
The support main body 15 is pushed into the through hole 11 and each locking protrusion 37 is locked in the mounting groove 40.
This prevents the material from falling off.

Sixth Embodiment The sixth embodiment of this invention will be explained based on FIGS. 12 and 13. The support main body 1 of this embodiment
5 is molded from a flexible material such as rubber, and has a large-diameter head 42 and a small-diameter neck 43 formed at its upper end attachment portion. On the other hand, the through hole 11 of the support plate 6 is composed of a circular locking part 45 and a recess 46 cut out laterally from the locking part 45. and,
At the time of installation, the head 42 of the support main body 15 is pressed and deformed, as shown by the chain line in FIG.
After protruding from the upper surface of the support plate 6 from the support plate 6, as shown in FIG.

Seventh Embodiment FIG. 14 shows a seventh embodiment of this invention, in which the support main body 15 is detachably supported by a spring washer 48 having a corrugated cross section on the support plate 6. In the figure, 50 is the support main body 15
The corrugated spring washer 48 is removably engaged in the fitting groove 50.

Modifications This invention is not limited to the configurations of the above-mentioned embodiments, but can also be embodied in the modifications described in the next section.

(1) Fig. 15 shows a support plate 52 formed into an L-shape in plane so that it can be attached to a corner part of a concrete form, and approximately in the center thereof has a pair of through holes having the same structure as the first embodiment. 11 is formed. Two anchor bolts are supported by the support body 15 attached to these through holes 11.

(2) As shown in FIG. 16, outer regulating pieces 54 that engage with the outer edges of the ribs of the concrete formwork are bent on both left and right outer edges of the support plate 53, and one outer regulating piece 54 is bent. An inner regulating piece 5 that engages with the inner surface of the concrete formwork is located at the inner position of
5 is formed protrudingly. Therefore, with this configuration, as shown in FIG. 17, the support plate 53 functions as a spacing retainer due to both the inner and outer regulating pieces 54 and 55, and the concrete pressure during concrete pouring prevents the concrete. There is no risk that the pin holes in the formwork will be deformed by the mounting pins 7 of the support plate 53.

(3) As shown in Fig. 18, a pair of outer regulating pieces 5
Even in the case of the support plate 49 having the four mounting pins 7, it has the function as a spacer as described above.

(4) In FIG. 19, an adjustment bolt 56 is screwed onto the head 16 of the support main body 15, so that the position of the support main body 15 relative to the anchor bolt 4 can be adjusted. With this configuration, it is possible to cope with changes in the top position of the concrete.

In addition, this invention can be embodied by arbitrarily changing the shape and structure of each part without departing from the spirit of the invention.

Effects As detailed above, this invention forms a buried part that is buried in the concrete between a pair of opposing concrete formworks in the main body of the support, which has an insertion hole that extends in the vertical direction for inserting the anchor bolt. At the same time, by forming a mounting part on the upper part of the buried part that can be attached and detached to the through hole provided in the support plate installed between the upper surfaces of both formworks, only the support body will be damaged. In such cases, you can leave the support plate as it is and replace only the support body with a new one, and this is an excellent feature that allows you to support many types of anchor bolts with different diameters with a single support plate. be effective.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing a conventional anchor bolt support, with main parts cut away, Figs. 2 to 5 show the first embodiment of this invention, and Fig. 2 is an exploded perspective view of the anchor bolt support. FIG. 3 is a sectional view showing the state of use, FIG. 4 is a sectional view showing the mounting state of the support body and the support plate, and FIG. 5 is a sectional view of the foundation concrete. FIG. 6 is a longitudinal sectional view showing a second embodiment of this invention, and FIG. 7 is a longitudinal sectional view showing a third embodiment of this invention. FIG. 8 is a plan view of a support plate in a fourth embodiment of this invention, and FIG. 9 is a longitudinal cross-sectional view showing the attached state. FIG. 10 is a plan view of a support plate in a fifth embodiment of this invention, and FIG. 11 is a sectional view showing the same mounted state. FIG. 12 is a plan view of the support plate in the sixth embodiment of this invention, and FIG. 13 is a sectional view showing the same mounted state. FIG. 14 is a sectional view showing the mounting state of the seventh embodiment of this invention. Fig. 15 to Fig. 19 respectively show modifications of this invention, Fig. 15 is a plan view of the support plate, Fig. 16 is a perspective view of the support plate, and Fig. 17 is a cross section showing the state of use. figure,
FIG. 18 is a perspective view of the support plate, and FIG. 19 is a perspective view showing the attached state. Anchor bolt...4, Support plate...6, Concrete formwork...8, Through hole...11, Support body...
...15, Through hole...18, Foundation concrete...
C.

Claims (1)

[Claims for Utility Model Registration] 1. A support body 15 having an insertion hole 18 extending in the vertical direction through which the anchor bolt 4 is inserted.
In addition, a buried part 17 is formed to be buried in the concrete C between a pair of opposing concrete formworks 8, and a support plate 6 mounted between the upper surfaces of both formworks 8 is formed in the upper part of the buried part 17. An anchor bolt support device characterized in that a mounting portion 19 is formed that is detachable from a through hole 11 provided. 2. The anchor bolt support according to claim 1, wherein the attachment portion is a pair of protrusions 19 that can pass vertically through a pair of fitting recesses 12 provided opposite to each other in the through hole 11. 3. A holding portion 14 is cut and raised on the peripheral edge of the through hole 11 to elastically engage with the lower surface of the protrusion 19 to hold the support body 15 in the attached position.Claim 2 of the Utility Model Registration Claim. Anchor bolt support as described. 4. The anchor bolt support according to claim 1, wherein the mounting portion is a screw hole 26 into which a mounting screw 22 is screwed. 5. The anchor bolt support according to claim 1, wherein the attachment portion is a male threaded portion 31 formed on the outer peripheral surface of the head 30 of the support main body 15. 6 Utility model registration claim 1, in which the support main body 15 is molded from a flexible material such as rubber, and a mounting portion 34 that is elastically deformed by a locking claw 33 protruding from the periphery of the through hole 11 is formed at the upper end thereof. Anchor bolt support as described in section. 7 The support main body 15 is molded from a flexible material, and the upper end thereof has a locking protrusion 37 provided around the periphery of the through hole 11.
The head 38 that is elastically deformed by the locking protrusion 37
The anchor bolt support according to claim 1, which is provided with a mounting groove 40 into which the anchor bolt is fitted. 8. When the attachment part of the support main body 15 molded from a flexible material is composed of a large-diameter head 42 and a small-diameter neck 43, and the head 42 is deformed by pressing,
A recess 46 formed on one side of the through hole 11 allows the head 42 to fit therein, and a locking portion 45 formed on the other side of the through hole 11 engages the neck 43 when the head 42 is restored. An anchor bolt support according to claim 1, which is a utility model registered as a utility model. 9. An anchor according to claim 1 of the utility model registration claim, in which a fitting groove 50 is formed on the outer periphery of the supporting body 15, and the supporting body 15 is attached to the through hole 11 by a spring washer 48 that fits into the fitting groove 50. Bolt support. (10) The anchor bolt support according to claim 1, wherein the buried portion 17 is formed in the shape of an inverted cone. (11) The anchor bolt support according to claim 1, which is a registered utility model, in which the support plate 52 is formed into an L-shape in plane so that it can be attached to a corner portion of the concrete formwork 8. (12) Outer regulating pieces 54 that engage with the outer edges of the rib portions 9 of the concrete formwork 8 are bent on both outer edges of the support plate 53, and at least one of the outer regulating pieces 54 is bent at the inner position. , an inner regulating piece 55 that engages with the inner surface of the concrete formwork 8
An anchor bolt support according to claim 1 of the utility model registration form.