JP2548639B2 - Anchor bolt fixing device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anchor bolt fixing device used for fixing a column base or the like of a building. 2. Description of the Related Art As a method of fixing a column base of a building or the like to a foundation structure, there are an embedding type, a root winding type and an anchor bolt type. Also, because of its good workability, anchor bolts are often used. [0003] The anchor bolt type is a method in which anchor bolts are embedded in concrete of a foundation structure.
As shown in FIG. 10, a steel frame 24 is assembled and fixed on the waste container 23, the anchor bolt 15 is attached to the steel frame 24, and concrete is poured to bury the anchor bolt 15. This type has the advantage that the anchor bolts 15 can be fixed firmly, but the steel frame 24
Is for welding and manufacturing at factories and bringing them to the site. Not only does it require heavy equipment such as a tow truck, but the steel frame 24 is large, which not only hinders the reinforcement of the foundation structure, but also
Since it is a mounting and fixing method by welding, it is difficult to correct the position and the workability is poor. In view of the above, there has been proposed a system in which the frame is assembled by the anchor bolts themselves without using the steel frame as described above (see Japanese Utility Model Laid-Open No. 60-58645). As shown in FIG. 11, this anchor has a lower end portion of the anchor bolt 15 fixed to a fixing plate 25 installed on the foundation ground, and an upper end portion thereof is fixed by an attachment plate 14, so that the anchor is made of a large steel. It allows for robust assembly without the use of a frame. However, the above-mentioned improved method has a small adjustment allowance in the height direction of the anchor bolt, so that the anchor bolt can be applied to various substructures having different thicknesses. It is necessary to prepare various bolt lengths with different pitches of 100 mm, which leads to high costs and labor to manufacture and stock. In addition, an anchor bolt that is longer than necessary in terms of strength not only causes a high cost, but also is heavy and reduces workability. Furthermore, when dealing with corner posts, it is difficult to fit the nut with washer at the bottom,
There is a disadvantage that. [0006] The present invention is intended to improve the above-mentioned conventional method, and the number of types of anchor bolts, which are relatively expensive, can be reduced, a large number of small quantities can be produced, and the cost can be greatly reduced by shortening. , Easy inventory management, and
It is an object of the present invention to provide a device capable of reducing the weight, improving the workability, and further facilitating the work on a corner post by shortening the length of the anchor bolt. The structure of the device of the present invention will be described with reference to FIGS. 1 to 9 corresponding to the embodiments. The present invention is based on the base 2 fixed to concrete or ground.
A plurality of rods 7 having fixing means 13 for anchor bolts 15 are erected on the upper part, while a plurality of anchor bolts 15, 15 are vertically erected at predetermined hole positions of the template 14 so that the rods 7 are fixed. Anchor bolts 1 at positions corresponding to the fixing means 13 of
Anchor bolts 15 and 15 are provided so as to be vertically adjustable with respect to the rods 7 and 7 by fixing the arbitrary positions of the upper and lower portions of the 5, 15 with a fixing means 13. Embodiments of the apparatus of the present invention will be described below with reference to the drawings. 1 to 6, 1 is an anchor frame, which is composed of a base 2 and a plurality of rods 7, 7. The base 2 is formed in the shape of a rectangular frame by an angle member, and fixing bolts 3 and 3 project inwardly at the four corners by welding, and the nut 4 is screwed. At the same time, the angle members on each side of the base 2 are provided with mounting holes 6 and 6 through which the stacon anchor 5 embedded in the ground (station) 23 is inserted. Further, the rod 7 is formed by an angle member so as to be vertically long, and a ridge portion at a lower end portion thereof has an insertion hole 8 for the fixing bolt 3.
Is provided. On the upper part of the rod 7, an L-shaped member 10 is fixed to an upright half receiving portion 9 which is bent inward of an angle member, and an insertion hole 11 is formed between them. Anchor bolt fixing means 13 in which push bolt 12 is screwed so as to move back and forth.
Is provided. On the other hand, 14 (see FIGS. 1 and 6) is a template in which a plurality (12 in the embodiment) of anchor bolts 15 are joined and erected at the upper portion thereof, which is formed in a rectangular shape and has four corners. A plurality of mounting holes (not shown) are provided in the peripheral portion including the portions at substantially equal intervals. The anchor bolt 15 is provided with external threads 16 and 17 at the upper end and the lower end, and the external thread 16 at the upper end is formed relatively long. Each of the anchor bolts 15 is attached by inserting an outer end screw 16 of the upper end thereof into a hole of the template 14 and sandwiching the nuts 18 and 18 screwed from both upper and lower surfaces of the template 16.
A nut 19 is also screwed into an outer screw 17 at the lower end of the anchor bolt 15. The group of anchor bolts 15 suspended from the template 14 as described above is located at the four corners of the template 14 in positions corresponding to the fixing means 13 of the rods 7 and 7, respectively. The anchor bolts 15 and 15 are inserted from their lower ends into the insertion holes 11 and 11 of the fixing means 13 in the rods 7 and 7.
Then, push bolts 12 and 12 are tightened and fixed at an appropriate height. FIGS. 7 to 9 show another embodiment of the present invention, particularly another example of an anchor frame. Although the use of an angle member for the rod 7 is the same as the above embodiment, Bolt insertion holes 20 and 20 are provided at the four corners of the base 2 instead of the fixed bolts 3, and bolt insertion holes 21 and 21 are provided at the lower end of the rod 7 correspondingly. The rod 7 is attached to the corner of the base 2 as shown in the figure, and is fixed by a mounting bolt / nut (not shown). Further, the anchor bolt fixing means 13 on the upper part of the rod 7 has a bracket 22 made of an angle member or the like fixed to the upper end portion of the rod 7, and the angle members are fixed to each other at both ends thereof so that the anchor bolt 15 can be inserted. Forming hole 1,
A push bolt 12 is screwed onto one of the angle members and is fixed to the bracket 22. The apparatus of the present invention is constructed as described above, and in construction, first, the stercon anchors 5 and 5 are buried in the ground, and the base 2 is fitted into the ground through the mounting holes 6 and 6. Next, the rods 7 and 7 are attached to the four corners of the base 2.
The lower end of the is attached and fixed and set up. Then, anchor bolts 15 and 15 are vertically installed on the template 14, and four anchor bolts at the corners thereof are fixed to the anchor bolts of the rods 7 and 7.
Insert it into the insertion hole 11 of 13 and fix it
After lowering 14 to adjust it to a predetermined position using a swing (not shown), the nuts are tightened in the stencon anchors 5 and 5 to fix the base 2. In this case, the anchor bolt 15,
The height of the anchor bolt 15 can be adjusted by the insertion depth of the anchor bolt 15 into the fixing means 13, and its range is from the height of the anchor frame 1 to the height of the anchor frame 1 in the embodiment. It can be performed in a wide range up to the height including the height. Depending on the shape of the anchor bolt used and the structure of its fixing means, the anchor
The vertical adjustment may be made only within a certain range of the total bolt length. Especially, if the height dimension is known in advance, if the lower end of the anchor bolt is adjusted within a certain range, the overlapping portion with respect to the rod 7 will be small and the anchor bolt used will be short. Therefore, it is suitable. In addition, in the above embodiment, in addition to the four anchor bolts 15 and 15 located at the corners of the template 14, the anchor bolts 15 and 15 not fixed to the rods 7 and 7 are provided between the corners. Two 15's are laid vertically, but it is possible to omit them depending on the usage conditions. As described above, according to the anchor bolt fixing device of the present invention, a plurality of vertical rods having anchor bolt fixing means on the base are erected on a base fixed to concrete or ground. On the other hand, by anchoring a plurality of anchor bolts at predetermined hole positions of the template and fixing the anchor bolts at the upper and lower positions at positions corresponding to the fixing means of the rod with the fixing means, the anchor bolts are fixed. -Because the bolts are vertically adjustable with respect to the vertical rod, it is possible to assemble them robustly without using a large steel frame. At the same time, the anchor bolt can be fixed to the desired height by changing the insertion depth of the anchor frame, and its height can be adjusted in a wide range. The number of anchor bolt lengths can be significantly reduced, enabling mass production of a variety of types, and the anchor bolts can be short and have the minimum length required for strength. Moreover, inventory management becomes easier. Moreover, since the anchor bolts can be short, the weight is reduced and the workability can be improved. In addition, the anchor frame is convenient for transportation, does not require heavy equipment for loading, is suitable for corner posts, and can be fixed to the ground via a base, so that the anchor frame -Easy installation and positioning
It has many advantages.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view showing an embodiment of the device of the present invention. FIG. 2 is a front view of the anchor frame. FIG. 3 is a plan view of the base. FIG. 4 is an enlarged plan sectional view showing a fixed state of the base and the vertical rod. FIG. 5 is an enlarged plan sectional view showing a portion of anchor bolt fixing means. FIG. 6 is a plan cross-sectional view illustrating an arrangement of anchor bolts and a fixed state thereof. FIG. 7 is a front view of a main portion showing another embodiment of the present invention. FIG. 8 is a plan cross-sectional view showing a mounted state of the base and the vertical rod. FIG. 9 is a plan sectional view showing the arrangement and fixing state of the fixing means and anchor bolts of the anchor frame. FIG. 10 is a front view showing a conventional device. FIG. 11 is a perspective view showing another conventional device. [Explanation of symbols] 1 Anchor frame 2 Base 3 Fixing bolt 5 Stecon anchor 7 Vertical rod 11 Insertion hole 12 Push bolt 13 Anchor bolt fixing means 14 Template 15 Anchor bolt 16, 17 External screw

Claims (1)

(57) [Claims] On a base fixed to concrete or ground, a plurality of vertical rods having anchor bolt fixing means are provided upright on the base, while a plurality of anchors are provided at predetermined hole positions of the template. The anchor bolt is provided so as to be vertically adjustable with respect to the vertical rod by vertically suspending the bolt and fixing an arbitrary position above and below the anchor bolt at a position corresponding to the fixing means of the vertical rod by the fixing device. Anchor bolt fixing device.