JPH0694672B2 - Anchor bolt positioning tool - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used for an anchor bolt positioning tool when constructing a concrete foundation.

[0002]

2. Description of the Related Art Conventionally, as means for accurately positioning an anchor bolt, a pair of mounting support plates and an anchor bolt positioning plate bridged between the support plates are provided, and the support plate is a basic formwork. Of the positioning plate and a mounting portion for mounting the positioning plate, and the supporting portion is provided with a hole corresponding to the hole provided in the horizontal edge plate of the form, The mounting part has a long hole that is substantially parallel to the horizontal edge plate.
There is known an anchor bolt fixing jig in which a long U groove or a long hole which is perpendicular to the long hole is provided at both ends of the positioning plate, and an anchor bolt insertion hole is provided in the middle. (See Japanese Utility Model Laid-Open No. 60-66741).

[0003]

By the way, in the above-mentioned prior art, it is impossible to adjust the pitch of the anchor bolts.
Since the lower end of the anchor bolt is U-shaped, the anchor bolt cannot be inserted into the anchor bolt insertion hole of the positioning plate from above, and the positioning plate must be replaced every time the anchor bolt diameter or pitch changes. There are problems such as the need to prepare various jigs.

The present invention has been made in view of the above situation, and an object thereof is to be able to adjust the pitch of the anchor bolt, to cope with a change in the diameter of the anchor bolt, and to use the anchor bolt. An anchor bolt positioning tool that can be inserted from above is provided.

[0005]

In order to achieve the above object, the present invention takes the following technical means. That is, according to the present invention, a pair of connecting portions are arranged orthogonally to form an L shape, and an anchor bolt insertion hole is provided in a tool body formed by projecting a fixing portion to a base formwork at an appropriate position. A connecting means comprising a connecting elongated hole or a fixing bolt for changing the connecting position is provided in one or both connecting portions of the main body, and the connecting portion of at least two tool bodies is connected to the anchor bolt insertion hole. The feature is that the pitch is adjustable so that the frame can be connected.

Further, according to the present invention, the connecting portion of the tool body is connected by an L-shaped connecting member having an L shape and having a connecting means composed of an anchor bolt insertion hole and an elongated hole or bolt for connection. It has a feature. Further, the present invention connects the tool main body or the L-shaped connecting member with a straight connecting member having a straight measuring shape and provided with a connecting means including an anchor bolt insertion hole and a connecting elongated hole or bolt. It is characterized by having done.

Further, according to the present invention, the anchor bolt insertion hole is made as large as possible than the anchor bolt diameter, and a sleeve having bolt insertion holes slightly larger than various anchor bolt diameters can be exchangeably inserted into the insertion hole. It is characterized by The present invention is characterized in that the fixing portion of the tool body is provided with a mounting long hole so that the tool main body can be mounted on a fixing tool provided with a mold clamping means.

[0008]

According to the present invention, the two tool bodies are arranged symmetrically with each other, and the pitch of the bolt insertion holes is adjusted in accordance with the pitch of the anchor bolts so that the mutual connecting portions are bolts and nuts. By fixing the fixing parts to the upper edge of the concrete formwork by adjusting the positions of the fixing parts and fixing the parts by connecting the fixing parts to the rectangular frame by using the fixing parts. Therefore, the anchor bolt is inserted into the large diameter anchor bolt insertion hole of the tool body from the upper side, the sleeve is externally fitted to the anchor bolt, and the sleeve is fitted and locked in the anchor bolt insertion hole of the tool body. A nut can be screwed onto the threaded portion, and the anchor bolt can be positioned and fixed to the tool body via the sleeve. The anchor bolt can be inserted into the bolt insertion hole from above after concrete is poured into the mold.

In addition, the connecting portion of one set of tool main body has two L
It is possible to provide a positioning tool for embedding four or more anchor bolts by connecting through the shaped connection member and determining the pitch of the anchor bolt insertion holes and connecting them to form a rectangular frame. In addition, each set of tool body has two L
It is possible to obtain a positioning tool for embedding six or more anchor bolts by connecting through the shape-and straight-scale connecting members, determining the anchor bolt insertion hole pitch, and connecting the anchor bolts.

Then, the pitch of the anchor bolt insertion holes can be freely changed by changing or moving the positions of the connecting elongated holes of the tool body, the L-shaped and the straight type connecting members. By moving the position of the fixing bolt with respect to the mounting long hole provided in the fixing portion, the position of the anchor bolt with respect to the concrete formwork surface can be freely adjusted and changed.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. 1 and 2, 1 is a formwork for concrete foundation, 2 is an anchor bolt positioning tool body, 3 is an L-shaped connecting member, 4 is a tool body fixing tool, 5 is an anchor bolt,
6 is a sleeve for positioning the anchor bolt.

The mold frame 1 is composed of a panel 1A and an edge frame 1B fixed to the outer side surface thereof, and the fixture 4 is fixed to the upper edge frame 1B. The formwork 1 shown in the drawing is made of wood, but it can be integrally formed of metal. The tool body 2
Is a metal plate, and as shown in FIG. 3 and FIG.
A and 2B are arranged orthogonally to form an L-shape, and at the outside of one connecting part 2A, a fixing part to the mold 1 in parallel with the other connecting part 2B.
2C and 2D are extended, and an anchor bolt insertion hole 7 is provided at the intersection of both connecting parts 2A and 2B and one fixing part 2C.
A fixing bolt 8, which is one of connecting means, is fixed to B at a right angle to the plate surface, and a nut 9 (see FIG. 4) is screwed.

Then, in the fixing portions 2C and 2D of the tool body 2,
The mounting elongated holes 10 for inserting the fixing bolts, which are long in the longitudinal direction, are provided so that they can be connected and fixed to the fixing tool 4. Fixing bolts should be attached to both the connecting parts 2A and 2B.
Instead of 8, bolts and nuts (not shown) provided with a long slot 11 for connection, which is one of the connecting means, can be connected as shown by the chain double-dashed line in FIG. The fixing bolt 8 can be provided on one of the above and the connecting elongated hole 11 can be provided on the other. The fixing portion 2D can be removed and provided in one place.

The diameter of the anchor bolt insertion hole 7 is as large as possible, and the anchor bolt 5 can be inserted from above and the sleeve 6 can be fitted therein. The L-shaped connecting member 3 is made of a metal plate, and as shown in FIGS. 5 and 6, an anchor bolt insertion hole 12 (having the same diameter as the insertion hole 7) is provided at the intersection of the connecting portions 3A and 3B.
Each of the connecting portions 3A, 3B is provided with a plurality of elongated connecting holes 13 in the longitudinal direction at appropriate intervals, and the fixing bolt 8 of the tool body 2 is inserted into the elongated holes 13 and the nut 9 is screwed. The tool body 2 and the L-shaped connecting member 3 are connected to each other, and each connecting portion 2
It is framed in a rectangular shape by A, 2B, 3A and 3B (see Fig. 1).

The long holes 13 provided in the connecting portions 3A and 3B of the L-shaped connecting member 3 are one connecting portion 3A or 3B, and a fixing bolt 14 is fixed to the other connecting portion 3B or 3A. Also, a long hole which is a connecting means provided in the connecting portions 2A and 2B of the tool body 2
Set to correspond to 11 and fixing bolt 8. Also,
A fixing portion 3C may be provided at a corner of the L-shaped connecting member 3 as shown by a chain double-dashed line in FIG. 5, and a bolt insertion hole 13A may be provided so as to be fixed to the form 1 by the fixing tool 4.

The tool main body fixing member 4 is made of metal, and as shown in FIGS. 7 and 8, is provided with a U-shaped main body 4A obtained by cutting a channel steel into a predetermined width and one side piece of the main body 4A. Bolt insertion hole
A nut 16 that is concentrically secured to the nut 15, a tightening bolt 17 that is screwed into the nut 16 and is a sandwiching means that is inserted through the insertion hole 15, and an upright shape on the outer surface of the main body 4A opposite to the groove. It consists of a mounting bolt 18 fixed to the.

Then, the elongated holes 10 of the fixing portions 2C and 2D of the tool body 2 are externally fitted to the mounting bolts 18 of the main body 4A, the position is adjusted, and the nuts 19 are screwed into the mounting bolts 18 to be fixed. The tool body 2 is fixed to the tool 4. In addition,
When attaching the fixture 4 to the upper edge frame 1B of the base form 1, the upper edge frame 1B is attached to the main body 4A and the tightening bolts 17 as shown in FIG.
The upper edge frame 1B can be sandwiched and fixed by applying the fixture 4 so as to be located between the tip metal parts 17A and tightening the tightening bolts 17.

As shown in FIG. 12, the anchor bolt 5 has a lower end 5A curved in a substantially hook shape, a screw part 5B provided at the upper end, and a nut 20 to be screwed. The anchor bolt positioning sleeve 6 is made of metal or synthetic resin, has a locking collar 6A formed at one end, and can be freely inserted into and removed from the anchor bolt insertion holes 7 and 12, and the bolt insertion hole 21 of the sleeve 6 can be inserted. The inner diameter is slightly larger than the outer diameter of the anchor bolt 5 so that it can be easily inserted and removed, and the bolt insertion holes 21 having different inner diameters are prepared corresponding to the diameters of various anchor bolts. There is.

In the above embodiment, when the positioning tool is attached to the base mold 1, first, two tool bodies 2 and 2 are attached.
The two L-shaped connecting members 3 are arranged so that the connecting portions 2A, 2B, 3A, 3B have a substantially rectangular shape, and the anchor bolt insertion holes 7, 12
The long hole 13 of the L-shaped connecting member 3 is selected and the fixing bolt 8 is inserted into the long hole 13 so that the pitch, that is, the center-to-center distance of the anchor bolt 5 is the same as the required pitch of the anchor bolt 5.
The nut 9 is screwed onto the 8 and the connecting parts 2A, 2B, 3A and 3B are tightened and connected to form a rectangular frame.

As shown in FIG. 1, the positioning tool framed in this manner is mounted on a fixture 4 which is temporarily fixed in advance to the corners of the basic formwork 1 and the elongated holes 10 of the fixing portions 2C and 2D. Place the mounting bolt 18 so that it will fit into the
Insert the above into the insertion holes 7 and 12 from above, fit the sleeve 6 onto the anchor bolt 5 so that the locking collar 6A is on the upper side, and screw the nut 20 onto the anchor bolt 5 to insert the concrete foundation B. Set so that the protrusion height from the top end of the sleeve 6 is set, the sleeve 6 is fitted into the insertion holes 7 and 12, and the anchor bolt 5 is inserted via the sleeve 6 to the tool body 2 and the L-shaped connecting member 3 Supported by.

Subsequently, the positioning tool together with the anchor bolt 5 can be moved back and forth and left and right to position the anchor bolt 5, and the fixing tool 4 is tightened and fixed to the form 1 and the mounting bolt 18 on the fixing tool body 4A. By fixing the fixing portions 2C and 2D to the fixing tool 4 by screwing and tightening the nut 19 onto the fixing tool, the attachment of the positioning tool, that is, the positioning and fixing operation of the anchor bolt 5 is completed.

In the above embodiment, if the number of the anchor bolts 5 is 2, the L-shaped connecting member 3 is not used, and
It can be configured to connect the connecting portions 2A, 2B of the individual tool bodies 2 to each other, and one tool body 2 and one L-shaped connecting member
It can be positioned and fixed by connecting 3. When the positioning and fixing of the anchor bolts 5 are completed as described above, concrete is poured into the mold 1 and when the concrete is solidified and the foundation B (see FIGS. 11 to 12) is completed, the positioning tool and the mold 1 Etc. have been removed, and Figure 1
As shown in FIGS. 1 and 12, the pillar P is erected, and the lower flange F of the pillar P is fixed to the anchor bolt 5 by the nut 20. The anchor bolts 5 are made of concrete formwork 1
After it is injected into the anchor bolts, it can be inserted into the anchor bolt insertion holes 7 and 12 from the upper side and embedded in the concrete, and the anchor bolts 5 can be prevented from falling.

FIGS. 13 and 14 show a straight type connecting member 22, which is made of a metal plate and has a bolt insertion hole 23 having the same diameter as the anchor bolt insertion holes 7 and 12 at the center in the longitudinal direction. One or more long holes 24 or connecting bolts provided on both sides thereof
25 connecting means are selectively provided corresponding to the connecting means of the tool body 2 and the L-shaped connecting member 3. FIG. 15 shows an example in which six anchor bolts 5 are positioned and fixed using the connecting member 22, and the connecting portion 2B of the tool main body 2 and the connecting portion 3A of the L-shaped connecting member 3 are connected to each other in a straight type. They are connected by members 22 and can be attached and fixed to the rectangular frame and the frame 1 in the same manner as in the case of the four anchor bolts 5 shown in FIG. Therefore, the same parts as those in FIG. 1 are designated by the same reference numerals, and detailed description thereof will be omitted.

The present invention is not limited to the above-mentioned embodiment, and for example, the tool body 2, the connecting members 3, 22 and the fixing tool 4 can be made of synthetic resin, and the sleeve can be used.
6 can be omitted.

[0025]

As described above, according to the present invention, a pair of connecting portions are arranged in an orthogonal shape to form an L shape, and a fixing portion for fixing to a base form is provided at a proper position so as to project. An anchor bolt insertion hole is provided, and one or both connecting portions of the tool main body are provided with connecting means composed of a long hole for connection or a fixing bolt for changing the connecting position, and at least one set of the tool main body is described above. Since the connecting portion is a frame that can be connected by adjusting the pitch of the anchor bolt insertion hole so that it can be framed,
Positioning adjustment is possible as well as pitch adjustment of the anchor bolts, and anchor bolts of various pitch sizes can be positioned with one set of tools.

Further, according to the present invention, the connecting portion of the tool body is connected by an L-shaped connecting member which is L-shaped and which has a connecting means consisting of an anchor bolt insertion hole and an elongated hole or bolt for connection. Since this is a feature, it is possible to adjust the pitch and the positioning of four or more anchor bolts. Furthermore, the present invention provides the tool body comrades or L
The shape-connecting member is connected to the shape-connecting member by a straight-size connecting member which is of a straight size and which has a connecting means including an anchor bolt insertion hole and an elongated hole or bolt for connection. It is possible to freely adjust the pitch and position of more than one anchor bolt.

According to the present invention, the anchor bolt insertion hole is made as large as possible than the anchor bolt diameter, and a sleeve having bolt insertion holes slightly larger than various anchor bolt diameters can be exchangeably inserted into the insertion hole. Therefore, regardless of the diameter of anchor bolts of various sizes, it is possible to respond to changes in the anchor bolt diameter by simply changing the sleeve, and the anchor bolt insertion holes The anchor bolt can be inserted from the upper side. Therefore, the anchor bolt can be inserted and buried after pouring concrete to prevent the anchor bolt from collapsing due to concrete injection, and workability can be improved and effective use can be achieved.

Further, the present invention is characterized in that the fixing portion of the tool body is provided with a mounting long hole so that it can be mounted on a fixing tool having a mold clamping means. It is easy to attach and detach to and from, and it is easy to adjust the attachment position and the position of the anchor bolt, so that the workability can be improved.

[Brief description of drawings]

FIG. 1 is an overall plan view showing an embodiment of the present invention.

FIG. 2 is a sectional view taken along the line AA of FIG.

FIG. 3 is an enlarged plan view of the tool body.

FIG. 4 is a right side view of FIG.

FIG. 5 is an enlarged plan view of an L-shaped connecting member.

FIG. 6 is a front view of FIG.

FIG. 7 is an enlarged side view of the fixture.

FIG. 8 is a plan view of FIG.

FIG. 9 is an enlarged plan view of the anchor bolt positioning sleeve.

FIG. 10 is a front view of FIG. 9.

FIG. 11 is a plan view showing an example of a concrete foundation.

12 is a sectional view taken along line BB of FIG.

FIG. 13 is a plan view of the direct-scale connecting member.

14 is a cross-sectional view taken along line CC of FIG.

FIG. 15 is an overall plan view showing another embodiment of the present invention.

[Explanation of symbols]

 1 Foundation form 2 Tool body 2A, 2B Connecting part 2C, 2D Fixing part 3 L-shaped connecting member 3A, 3B Connecting part 4 Fixing tool 5 Anchor bolt 6 Anchor bolt positioning sleeve 7, 12 Anchor bolt insertion hole 8 Fixing bolt 10 Mounting long hole 11,13 Connecting long hole 14 Fixing bolt 17 Tightening bolt (clamping means) 18 Mounting bolt 21 Bolt insertion hole 22 Straight type connecting member 23 Bolt insertion hole 24 Long hole 25 Connection bolt

Claims (5)

[Claims] 1. A tool main body having an anchor bolt insertion hole in a tool main body formed by arranging a pair of connecting portions orthogonally to form an L shape and projecting a fixing portion to a base formwork at a proper position. One or both connecting portions are provided with connecting means composed of connecting elongated holes or fixing bolts capable of changing the connecting position, and the connecting portions of at least two pieces of the tool body are connected to the pitch of the anchor bolt insertion holes. Anchor bolt positioning tool characterized in that it can be adjusted so that it can be framed. 2. The connecting portion of the tool body is connected by an L-shaped connecting member which is L-shaped and which has a connecting means consisting of an anchor bolt insertion hole and an elongated hole or bolt for connection. Item 1. Anchor bolt positioning tool according to item 1. 3. The tool main body comrades or the L-shaped connecting member are connected to each other by a straight-shaped connecting member which has a straight-shaped shape and which has a connecting means composed of an anchor bolt insertion hole and an elongated hole or bolt for connection. The anchor bolt positioning tool according to claim 1 or 2, wherein. 4. The anchor bolt insertion hole is made as large as possible than the anchor bolt diameter, and a sleeve having bolt insertion holes slightly larger than various anchor bolt diameters can be exchangeably inserted into the insertion hole. The anchor bolt positioning tool according to claim 1, 2, or 3. 5. An anchor according to claim 1, 2, 3 or 4, wherein the fixing portion of the tool main body is provided with a mounting long hole so that the tool main body can be mounted on a fixing tool having a form clamping means. Bolt positioning tool.