JP3342558B2 - PC board mounting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a PC board mounting apparatus for fixing a precast concrete board (hereinafter referred to as PC board) to a beam such as a steel beam .

[0002]

2. Description of the Related Art Conventionally, as this type of PC board mounting means, a bolt insertion hole is formed in a mounting portion formed by projecting a mounting bracket from the surface of the PC board, and a mounting bolt is erected on a beam material side. A technique of attaching a PC board to a beam by inserting the mounting bolt into a bolt insertion hole formed in the mounting bracket is widely known (Japanese Utility Model Application Publication No. 54-54).
No. 20806, Japanese Utility Model Publication No. Sho 59-20491).
In this conventional mounting technique, the adjustment of the mounting height of the PC board is performed by a U-shaped metal bar inserted into the mounting bolt portion between the upper surface of the beam member and the rear surface of the mounting portion of the mounting bracket.

[0003]

However, since the weight of the PC board is quite large, the prior art for adjusting the mounting height of the PC board by adjusting the insertion height of the U-shaped deposit is not known. The work involved a great deal of difficulty, and the work was not only poor, but also dangerous. SUMMARY OF THE INVENTION The present invention has been made in view of such a point, and an object of the present invention is to easily adjust a mounting height of a PC board and to use a simple structure to anchor the PC board.
An object of the present invention is to provide a PC board mounting device capable of increasing the operation .

[0004]

According to the present invention, the above-mentioned object is achieved.
In order to solve this problem, a flat plate is formed integrally on both sides of the flat plate
Formed in a substantially U-shaped cross section from the
Part is embedded in the PC board, and the other part projects from the surface of the PC board.
Mounting tool as a mounting part for the beam, and standing on the beam side
And comes into contact with the flat part of the mounting tool so that the height can be adjusted.
A support provided with a threaded body, and
With a fixing plate that positions the tool in the horizontal direction,
At least the two flanges should be
Inclined forward and backward so that the horizontal spacing between them changes
Technology to increase the anchoring effect on the PC board
Means were adopted.

[0005]

According to the present invention, the operation of adjusting the mounting height of the PC board is a simple operation of rotating a screw body which is screwed into a screw portion formed on the support member erected on the beam side. By work
The mounting height of the PC board can be adjusted via the mounting tool.
This height adjustment operation can be performed before and after the horizontal positioning by the fixing plate. Also before
The mounting tool is integrally formed on the flat plate portion and on both sides of the flat plate portion.
Formed in a generally U-shaped cross section from the flanged part
Large rigidity can be obtained regardless of a simple configuration. Only
At least both flanges
Inclined forward and backward so that the horizontal spacing between them changes
To increase the anchoring action on the PC board
Is possible. In addition, the mounting tool should be level against the support
When positioning in both directions,
It is easy to implement by fixing it to the flange.
And it is possible.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. FIGS. 1 to 4 show a first embodiment of the present invention, in which a front sectional view as seen from the AA direction indicated in FIG. 4, a perspective view of the mounting tool, and a lateral view as seen from the BB direction, respectively. FIG. 2 shows a cross-sectional view and a plan view. In the figure, reference numeral 1 denotes a mounting tool made of metal or the like, as shown in FIGS. 3 and 4, a part of the mounting tool is buried in the PC board 2, and the other part projects from the surface of the PC board 2 such as a steel beam. It constitutes a mounting portion for the beam 3. As shown in FIGS. 1 and 2, the mounting tool 1 has a flat plate portion 4, and flange portions 6, 7 continuously provided diagonally downward along oblique lines 5 on both sides of the flat plate portion 4. A lower plate portion 8 is integrally fixed to the lower portion of the flange portions 6 and 7 by welding or the like. The flat plate portion 4 has an insertion hole 9 for a reinforcing bar, the flange portions 6 and 7 have the insertion holes 10 and 11, and the lower plate portion 8 has an opening 12 respectively.

In the drawing, reference numeral 13 denotes a support which stands on a fixed base 14 fixed to the beam 3 by welding or the like, and an opening 12 formed in the lower plate 8 of the mounting tool 1.
Is inserted so that the horizontal position can be adjusted. In this example, a screw portion 15 made of a female screw is formed on the support 13, and a screw body 16 made of a bolt is screwed to the screw portion 15. The upper surface of the screw body 16 is the flat plate portion 4 of the mounting tool 1.
And supports the PC board 2 via the mounting tool 1 so that the height of the PC board 2 can be adjusted. Further, the support 13
Below the lower plate portion 8, a fixing plate 17 is fitted via a positioning hole 18. The fixing plate 17 is finally fixed to the lower plate portion 8 by welding or the like, and fixes the horizontal movement of the mounting tool 1 with respect to the beam 3. In addition, in the figure, 19 is a reinforcing bar.

When the PC board 2 is attached to the beam 3 in this embodiment, a required number of the support members 13 are required.
Is fixed to a predetermined position of the beam 3 via the fixing base 14, a fixing plate 17 is fitted thereto, and the mounting tool 1, which is partially embedded in the PC board 2 in advance on the support 13, is provided. The screw portion 1 of the support 13 is inserted through the opening 12 formed in the lower plate portion 8.
The PC board 2 is supported by the upper surface of the screw body 16 screwed to the screw 5. In this case, since there is formed a margin for adjusting the horizontal position between the opening 12 and the support 13, the horizontal deviation between the two can be absorbed, so that the degree of freedom in positioning the PC board 2 is given. . Also, since the mounting tool 1 and the support 13 are connected via the opening 12, the PC board 2
Is unlikely to fall off during work. In this support state,
Next, the screw body 16 is rotated, and the PC board 2 is
Adjust height. In this case, it goes without saying that the adjustment work is much easier than the conventional height adjustment using a U-shaped deposit. Thereafter, the fixing plate 17 is fixed to the lower plate portion 8 by welding or the like, the PC board 2 is positioned in the horizontal direction, and the mounting operation is completed. Note that the work of adjusting the height of the PC board 2 itself is possible even after the fixing of the fixing plate 17. In addition, the size of the head of the screw body 16 is made larger than the positioning hole 18 of the fixing plate 17, or the size of the opening 12 of the lower plate portion 8 is larger than the positioning hole 18 of the fixing plate 17 in the screw body 16 in advance. If the washer 20 having a smaller outer diameter is inserted, after the fixing plate 17 is fixed, P
The C plate 2 can be prevented from falling off. Further, since the flange portions 6 and 7 are continuously provided along the oblique line 5 and obliquely downward, the anchor effect of the portion buried in the PC board 2 is large, so the reinforcing bar 19 is omitted according to the case. It is also possible.

FIGS. 5 to 8 show a second embodiment of the present invention. FIG. 5 is a front sectional view taken along the line C--C shown in FIG. 8 , a perspective view of the mounting tool, and FIG. It is a side sectional view and a plan view as seen. In the present embodiment, the mounting tool 21 has the same shape as the mounting tool 1 of the first embodiment, but the opening 12 formed in the lower plate 8 is used.
In place of the opening 2 in the flat plate portion 22 above the mounting tool 21.
It has a feature in that No. 3 is formed. Correspondingly, a screw portion 25 made of a male screw is formed on the support 24, a screw body 26 made of a nut is screwed into the screw portion 25, and the upper portion of the screw portion 25 is inserted into the opening 23. , Screw 26
Is characterized in that the flat plate portion 22 of the mounting tool 21 is supported by the upper surface of the mounting tool 21 via the washer 27. Other parts have basically the same configuration as that of the first embodiment, and the same components are denoted by the same reference numerals.

When the PC board 2 is attached to the beam 3 in this embodiment, a required number of the support members 24 are required.
Is erected at a predetermined position of the beam 3 via the fixing base 14, the fixing plate 17 is fitted thereto, the screw body 26 is screwed into the screw portion 25, and the washer 27 is fitted. Support 24
The opening 23 formed in the flat plate portion 22 of the mounting tool 21 partially embedded in the PC board 2 in advance is inserted into the upper portion of the screw portion 25, and the PC is inserted through the washer 27 by the upper surface of the screw body 26. The plate 2 is supported. In this case, a margin is provided between the opening 23 and the threaded portion 25 of the support 24 so that the horizontal position can be adjusted. As in the first embodiment, there is almost no fear of falling off. In this supported state, the screw body 26 is then rotated to rotate P
The height of the C plate 2 is adjusted. Thereafter, the fixing plate 17 is directly fixed to the lower part of the mounting tool 21 by welding or the like, and P
The C-plate 2 is positioned in the horizontal direction, and the mounting operation is completed. Note that even after the fixing plate 17 is fixed, the PC board 2
The height adjustment work itself is possible. The screw 2
6 is larger than the positioning hole 18 of the fixing plate 17, so that the PC plate 2 does not fall off after the fixing plate 17 is fixed.

Although the embodiment has been described above ,
For example, to change the angle of the oblique line 5, such as to form an intermediate in the bent portion of the embedded portion of the P C plate 2 to enhance the anchor effect, or by modifying the specific shape of the embodiment, the thickness Or changing is a design choice. Also, in order to facilitate the turning operation of the screw body,
It is also effective to provide a sliding material for reducing the frictional resistance of the contact surface between the screw body and the mounting tool or the washer, or to perform surface treatment. Additionally, or after addition to form a rib for reinforcement in an appropriate moiety, such as fitting, a further fixing nut screwed portion between the threaded portion threadably united formed supporting lifting body as necessary, fixed It is also possible to change the specific configuration of the fixing portion such as the fixing structure between the base and the support and the fixing means.

[0012]

According to the present invention, the following effects can be obtained based on the configuration. (1) Adjustment of the mounting height of the PC board can be performed by rotating a screw body screwed into a screw portion of a supporter erected on the beam side, so that the adjustment work is simple and workability is improved. Is improved and work efficiency can be improved. (2) The mounting tool is integrally formed on the flat plate and both sides of the flat plate.
Because it was formed in a substantially U-shaped cross section from the formed flange part ,
High rigidity can be obtained despite the simple configuration.
In addition, at least the flanges of the mounting
So that the horizontal distance between the flanges changes
Out-of-plane force acting on the PC board
Can be increased. (3) Horizontal positioning of the mounting tool with respect to the support.
First, fix it to both flanges via the fixing plate.
By doing so, it is possible to easily carry out. Only
Also, by fixing the fixing plate to both flanges , the horizontal positioning of the mounting tool at the lower part of the support
Since it is possible, it is also possible to reduce the bending moments on the supporting body that act by surface force according to the P C plate.

[Brief description of the drawings]

FIG. 1 is a front cross-sectional view of a first embodiment of the present invention as viewed from the AA direction.

FIG. 2 is a perspective view of the attachment part.

FIG. 3 is a side cross-sectional view of the first embodiment as seen from the BB direction.

FIG. 4 is a plan view of the first embodiment.

FIG. 5 is a front cross-sectional view of the second embodiment of the present invention as seen from the direction of arrows CC.

FIG. 6 is a perspective view of the attachment part.

FIG. 7 is a side sectional view of the second embodiment as seen from the direction of line DD.

FIG. 8 is a plan view of the second embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Mounting tool, 2 ... PC board, 3 ... Beam material, 4 ... Flat plate part, 5
… Diagonal lines, 6, 7… flange parts, 8… lower plate parts, 9, 10,
11 insertion hole, 12 opening, 13 support, 14 fixing base, 15 screw part, 16 screw body, 17 fixing plate,
18 ... Positioning hole, 19 ... Reinforcing bar, 20 ... Washer, 21
... Mounting tools, 22 ... Plate, 23 ... Opening, 24 ... Support, 25 ... Screw, 26 ... Screw, 27 ... Washer

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Masahiro Kishi 1-1-15-14 Higashi, Satte-shi, Saitama (72) Inventor Shinnosuke Aiba 1-2-7 Moto-Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd. (72) Invention Applicant Hideki Ikeda 1-3-8 Moto-Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd.Tokyo Branch (72) Inventor Mikao Kobayashi 2-19-1 Tobita-Ki, Chofu-shi, Tokyo Kashima Construction Co., Ltd. ) Inventor Hiroshi Masukawa 1-3-8 Moto-Akasaka, Minato-ku, Tokyo Kashima Corporation Tokyo Branch (56) References JP-A-59-134260 (JP, A) JP-A-61-75148 (JP, A) Japanese Utility Model Application No. 1-159007 (JP, U) Japanese Utility Model Application No. 5-84718 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) E04B 2/94 E04B 1/60 508

Claims (1)

(57) [Claims] 1. A flat plate portion and integrally formed on both sides of the flat plate portion.
Formed in a substantially U-shaped cross section from the
Part is embedded in the PC board, and the other part projects from the surface of the PC board.
Mounting tool as a mounting part for the beam, and standing on the beam side
And comes into contact with the flat part of the mounting tool so that the height can be adjusted.
A support provided with a threaded body, and
With a fixing plate that positions the tool in the horizontal direction,
At least the two flanges should be
Inclined forward and backward so that the horizontal spacing between them changes
Feature that the anchor action on the PC board has been increased
PC board mounting device.