JP2004052405A - Anchor bolt support device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To inexpensively provide an anchor bolt support device having a simple structure, and easy in positioning-adjustment. <P>SOLUTION: In this anchor bolt support device, a post member 2 is connected to and erected on a base member 3 installed on the foundation ground 15, an anchor bolt 4 for installing a column of a building is connected to the post member 2, and an upper end thread 4a of the anchor bolt 4 is embedded in base concrete 20 in a projecting mode. A bearing plate 13 is arranged between the base member 3 and the foundation ground 15. The base member 3 and the bearing plate 13 are inserted into the upper part of an anchor screw 9 having a lower part buried in the foundation ground 15. The base member 3 and the bearing plate 13 are fixed on the foundation ground 15 by screw-engaging an installing nut 14 with the anchor screw 9. An adjusting screw 11 is screw-engaged with an adjusting screw hole 12 formed in the base member 3. The bearing plate 13 is pressed by the tip of the adjusting screw 11. A part of the base member 3 can be lifted by fastening and adjusting the adjusting screw 11. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a support device for anchor bolts that are erected on the foundation concrete of a building in such a manner that the anchor bolts are erected on the foundation ground to support the anchor bolts and project the upper end threaded portions of the anchor bolts. The present invention can be applied to a support device for anchor bolts on a foundation or a column base.
[0002]
[Prior art]
This type of anchor bolt support device includes, for example, an anchor bolt support device applied to a cloth foundation disclosed in Japanese Patent No. 3025638 and Japanese Patent No. 3066711 as already proposed by the present inventor. Japanese Patent No. 3124728 and Japanese Patent No. 3151433 disclose an anchor bolt support device applied to a column base.
[0003]
These anchor bolt support devices are connected to the building pillars via the upper threaded portions of the anchor bolts and are embedded in the foundation concrete to transmit the stress from the pillars to the foundation. In order to accurately match the height position of the screw part and the horizontal position of front and rear and left and right with the mounting position of the pillar, an adjustment function for positioning is necessary, and the present inventor has proposed several proposals other than the above proposal. Is going.
[0004]
[Problems to be solved by the invention]
However, the positioning adjustment function of the anchor bolt support device according to these proposals is not always satisfactory, and there is room for improvement. In the present invention, further improvements have been made, and a particularly simple structure and easy positioning adjustment are provided. An inexpensive anchor bolt supporting device is provided.
[0005]
[Means for Solving the Problems]
The present invention relates to a base in a mode in which a post member is connected to a base member mounted on a foundation ground to be erected, an anchor bolt for mounting a pillar of a building is connected to the post member, and an upper end screw portion of the anchor bolt is projected. The present invention is directed to a support device for anchor bolts buried in concrete.
[0006]
An anchor bolt support device according to the present invention includes a support plate provided between the base member and the foundation ground, the base member and the support plate being inserted into an upper portion of an anchor screw having a lower portion embedded in the base ground, and a mounting nut being anchored. Screw the base member and the support plate on the foundation ground by screwing to the screw, screw the adjustment screw into the adjustment screw hole provided in the base member, press the support plate with the tip of the adjustment screw, and Part of the base member can be moved up and down by tightening adjustment.
[0007]
In this anchor bolt support device, a part of the base member is raised and lowered by changing the pressing force against the support plate by tightening adjustment of the adjusting screw, and the horizontal position of the upper end screw portion of the anchor bolt is adjusted via the post member. Therefore, it is possible to correct the displacement of the upper end screw portion caused by unevenness of the foundation ground or the like, and to match the position with the installation position of the pillar of the building.
[0008]
The means for adjusting the horizontal position of the anchor bolt support device can be provided in a very simple and inexpensive manner as compared with the prior art adjusting means of this kind, and can be operated in a simple manner for adjusting the tightening of the adjusting screw. Thus, the horizontal position of the anchor bolt with respect to the upper end screw portion can be easily adjusted, and the present invention can be applied to a wide range of anchor bolt support devices such as a cloth foundation, an independent foundation, or a column base.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an anchor bolt supporting device according to the present invention will be described in detail with reference to the accompanying drawings showing a preferred embodiment to which the present invention is applied. In FIGS. 1 to 4, the device is applied to a cloth foundation or an independent foundation. An anchor bolt support device will be described, and FIGS. 5 to 7 will describe an anchor bolt support device applied to a column base.
[0010]
In the anchor bolt support device 1 shown in FIG. 1, a rectangular base member 3 is integrally connected to a lower end side of a long post member 2 formed of an L-shaped angle member by welding or the like. An anchor bolt 4 having an upper thread 4a is detachably attached to the upper end of the member 2.
[0011]
The post member 2 has a plate-shaped locking member 5 integrally connected to the upper end side by welding or the like, and a locking bolt 6 is screwed into a screw hole formed in the locking member 5 to have a desired height. When the locking bolt 6 is tightened with respect to the anchor bolt 4 adjusted to the position, the tip presses the outer periphery of the anchor bolt 4, and the anchor bolt 4 is pressed against the corner of the post member 2 and fixed in a three-point support state. can do.
[0012]
As shown in FIG. 4, a cylindrical locking member 7 having a screw hole 7a in place of the plate-shaped locking member 5 is integrally connected to a corner of the post member 2 by welding or the like. It is also possible to adopt a form in which the anchor bolt 4 is fixed by the locking bolt 8 screwed into the screw hole 7a, and the lower end side of the anchor bolt 4 can be bent to form the detent 4b.
[0013]
The base member 3 is provided at the center with a mounting hole 10 through which a hollow anchor screw 9 having a screw carved on the outer periphery is loosely inserted, and an adjusting screw for screwing an adjusting screw 11 (11a, 11b, 11c). The holes 12 (12a, 12b, 12c) are provided on the outer periphery concentric with the mounting holes 10.
[0014]
A support plate 13 is disposed on the lower surface side of the base member 3, and a mounting hole (not shown) is provided in the center of the support plate 13 so that the anchor screw 9 is loosely inserted in alignment with the mounting hole 10. And a mounting nut 14 is screwed into the anchor screw 9.
[0015]
As shown in FIG. 2, the anchor bolt support device 1 having the above configuration is erected on the foundation ground 15 on which discarded concrete has been poured. Then, the anchor screw 9 is inserted, and the wall anchor 16 is driven into the foundation ground 15 through the hollow portion of the anchor screw 9 to support the anchor screw 9.
[0016]
Next, the support plate 13 and the base member 3 are respectively inserted into the anchor screws 9, the mounting nuts 14 are screwed into the anchor screws 9, and the adjusting screws 11 are screwed into the adjusting screw holes 12, as shown in FIG. 2. Then, the anchor bolt supporting device 1 is made to stand on the foundation ground 15 by itself.
[0017]
Next, after reinforcing bars (not shown) composed of vertical bars and horizontal bars are arranged around the outer periphery of the anchor bolt support device 1, the formwork 17 is installed around the outer periphery of the reinforcing bars and The width stoppers 18 are attached to the upper end at predetermined intervals, and are fastened with the fixing nuts 19 so that the upper end screw portions 4a protrude from the width stoppers 18.
[0018]
When concrete is poured into the formwork 17 in this state, the foundation concrete 20 is completed in a state in which the anchor bolt supporting device 1 except for the tip of the upper end screw portion 4a is buried. Before the concrete is poured, the position of the tip of the upper end screw portion 4a is shifted from the desired height position and the front, rear, left and right horizontal positions.
[0019]
This positioning adjustment is performed in the height direction of the anchor bolt 4 by temporarily loosening the locking bolt 6 and the fixing nut 19 and positioning the anchor bolt 4 at a desired height. Tighten the nut 19 again by tightening again.
[0020]
As shown in FIG. 3, the fixing nut 19 is temporarily loosened so that the base member 3 can be moved up and down, and the three adjusting screws 11a and 11b can be connected. , 11c are adjusted, but when tightened, the tip of the adjusting screw 11 presses the support plate 13 to locally lift the base member 3, and when loosened, the base member 3 is locally lowered. .
[0021]
Therefore, when the three adjusting screws 11a, 11b, 11c are appropriately tightened or loosened to adjust the tightening individually, the tip of the upper end screw portion 4a of the anchor bolt 4 is moved in the front-back or left-right direction via the post member 2. It can be tilted at a desired angle, and can be positioned and adjusted so as to match the position where the pillars of the building are installed.
[0022]
Next, FIG. 5 shows a support device 21 for anchor bolts adapted to a column base, and four anchor support portions 22 (22A, 22B) configured to function in substantially the same manner as in the case of the cloth foundation and the independent foundation. , 22C, 22D), the lower end side of each anchor support portion 22 is separated from the post member 23 and the base member 24, and the upper end side of each anchor support portion 22 is an upper end screw portion 25a of each anchor bolt 25. Are connected by a template 26.
[0023]
In order to support the anchor bolt 25 at the upper end side of the post member 23 so that the height of the anchor bolt 25 can be adjusted, each of the anchor support portions 22 has a height adjusting portion 29 composed of a rectangular tubular locking member 27 and a locking bolt 28. And a horizontal adjustment unit 30 that allows the anchor bolt 25 to be adjusted in the front-rear or left-right direction via the post member 23 is provided.
[0024]
The horizontal adjustment unit 30 places the base member 24 and the supporting plate 32 on the foundation ground via anchor screws, wall anchors (not shown), and mounting nuts 31 as in the case of the anchor bolt support device 1 on the cloth foundation. Three adjustment screws 33 are attached to the mounting and base member 24 via adjustment screw holes.
[0025]
The positioning adjustment of the height adjustment unit 29 and the horizontal adjustment unit 30 is performed in the same manner as in the case of the anchor bolt support device 1 on the cloth foundation. The anchor bolts 25 are individually positioned and adjusted, and the upper ends of the respective upper end screw portions 25a are adapted to the mounting of the column base.
[0026]
Next, FIG. 6 shows an anchor bolt support device 34 adapted to a column base different from FIG. 5, and the structure above the post members 35 (35A, 35B, 35C, 35D) is the same as that of FIG. Although not shown and described, the base members 36 are integrally connected to the anchor support portions of the column base in FIG. 6.
[0027]
That is, the base member 36 is formed in an integral rectangular frame shape by welding each base member 36A, 36B, 36C, 36D formed of an L-angle material having a vertical piece and a horizontal piece in an abutting state. Each of the post members 35 is connected to the four corners on the inside of the vertical one by bolts 37 and nuts 38.
[0028]
On the horizontal piece of each base member 36, as in the case of the anchor bolt support device 1 on the cloth foundation, a hollow wall anchor is attached to the shaft center and buried in the foundation ground 39, and a screw is engraved on the outer periphery. An anchor screw 40 provided, a mounting nut 42 screwed to the anchor screw 40 to mount the base member 36 and the support plate 41, and an adjusting screw 43 screwed to the adjusting screw hole are provided.
[0029]
As shown in FIG. 7, the anchor bolt supporting device 34 tightens or loosens the adjusting screw 43 with the mounting nut 42 loosened, and when tightened, the tip of the adjusting screw 43 presses the supporting plate 41. When the base member 36 is locally lifted and loosened, the base member 36 is locally pulled down.
[0030]
Therefore, by appropriately tightening or loosening the adjusting screws 43 provided on each base member 36, the tip of the upper end screw portion 25a of the anchor bolt 25 via the post member 35 can be set at a desired angle with respect to the front-back or left-right direction. And can be positioned and adjusted in a state where it is aligned with the position where the pillar of the building is installed.
[Brief description of the drawings]
FIG. 1 is a perspective view of an anchor bolt supporting device in which the present invention is applied to a cloth foundation or an independent foundation.
FIG. 2 is a longitudinal sectional view showing a construction state of a foundation concrete of a cloth foundation or an independent foundation using the anchor bolt support device of FIG. 1;
FIG. 3 is an explanatory view of positioning adjustment in the horizontal direction in the anchor bolt support device of FIG. 1;
FIG. 4 is an exploded perspective view of a height adjusting portion of an anchor bolt according to another embodiment.
FIG. 5 is a perspective view of an anchor bolt support device in which the present invention is applied to a column base.
FIG. 6 is a plan view of a main part of an anchor bolt support device in which the present invention is applied to still another column base.
FIG. 7 is an explanatory view of positioning adjustment in the horizontal direction in the anchor bolt support device of FIG. 6;
[Explanation of symbols]
1, 21, 34 Anchor bolt support devices 2, 23, 35 Post members 3, 24, 36 Base members 4, 25 Anchor bolts 5, 7, 27 Lock members 6, 8, 28 Lock bolts 9, 40 Anchor screws Reference Signs List 10 mounting holes 11, 33, 43 adjusting screw 12 adjusting screw holes 13, 32, 41 supporting plates 14, 31, 42 mounting nuts 15, 39 base ground 16 wall anchor 17 formwork 18 width stopper 19 fixing nut 20 base concrete 22 Anchor support part 26 Template 29 Height adjustment part 30 Horizontal adjustment part 37 Bolt 38 Nut

Claims (1)

The post member is connected to the base member mounted on the foundation ground and erected, the anchor bolt for attaching the pillar of the building is connected to the post member, and the upper end screw portion of the anchor bolt is protruded and buried in the foundation concrete. In the anchor bolt support device to be
A support plate is provided between the base member and the foundation ground, the base member and the support plate are inserted into an upper portion of an anchor screw having a lower portion embedded in the base ground, and a mounting nut is screwed to the anchor screw to form the base member and the support member. Fix the pressure plate on the foundation ground, screw the adjustment screw into the adjustment screw hole provided in the base member, press the support plate with the tip of the adjustment screw, and raise and lower a part of the base member by adjusting the tightening of the adjustment screw An anchor bolt support device, which is made possible.

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