JP2647202B2 - Mounting plate for reinforced concrete wall - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to an improvement of a reinforced concrete wall mounting plate used for mounting and fixing, for example, an elevator device or the like to a reinforced concrete wall of a building. .

(Prior Art) For example, when an elevator device is installed in a building, it is necessary to fix an entrance / exit device of an elevator platform to a reinforced concrete wall of the building.

In fixing such a conventional doorway device or the like, first, as shown in FIGS. 4 and 5, an opening is formed in a reinforced concrete wall 1 which serves as an elevator platform for each floor of a building. At the lower part of 2, a landing threshold 3 is fixed according to the floor surface.

Next, left and right back angles 4 and 4 having an L-shaped cross section are erected on the left and right sides of the sill 3, respectively.
Is fixed to mounting plates 7, 7 which are respectively mounted and fixed to the anchor bolts 5, 5 through the nuts 6, 6 by the bolts and nuts 8, 8 and the like, which are driven into the reinforced concrete wall 1 and adjusted. A header case 10 having a guide rail 9 above and below the back angles 4, 4 on which a door (not shown) for opening and closing is suspended so as to freely open and close.
It is done by attaching.

And, as shown in FIG.
A first fixed substrate 71 into which the anchor bolts 5 implanted on the side of the reinforced concrete wall 1 are inserted and which has a single anchor bolt insertion slot 71a extending horizontally in the center thereof.
And a second fixed substrate 72 integrally bent in an L-shape with respect to the first fixed substrate 71 and having a single mounting elongated hole 72a extending horizontally in the center thereof. At present, the position adjustment between the back angles 4 and 4 is performed by the long holes 71a and 72a.

(Problems to be Solved by the Invention) However, inside the reinforced concrete wall 1, usually, reinforcing bars 1a and 1b are arranged vertically and horizontally at an interval of about 200 mm, and anchor bolts are provided at predetermined positions of the reinforced concrete wall 1. If the hole 5 is punched with a drill or the like in accordance with the position of the long hole 71a formed in the first fixed substrate 71 of the mounting plate 7, interference with the reinforcing bars 1a and 1b is likely to occur.

Therefore, in order to avoid such interference between the reinforcing bars 1a and 1b and the anchor bolt 5 at the installation site, as shown in FIG. 7, a notch 73 is cut into the long hole 71a of the mounting plate 7 by a gas burner or the like. In order to prevent the mounting strength from lowering, it is necessary to fix the anchor bolts 5 to the mounting plate 7 by welding after adjusting the position of the back angle 4, resulting in a problem that the workability is significantly reduced. .

SUMMARY OF THE INVENTION An object of the present invention is to reliably prevent interference with a reinforcing bar when an anchor bolt is driven into a reinforced concrete wall, and to eliminate the necessity of fusing the fixed board and welding the anchor bolt to the fixed board. An object of the present invention is to provide a reinforced concrete wall mounting plate as described above.

[Structure of the Invention] (Means for Solving the Problems) In order to solve the above problems, the present invention is fixed via an anchor bolt planted on a reinforced concrete wall side, and the anchor bolt is inserted. A first fixed substrate having a plurality of horizontally extending elongated holes for inserting anchor bolts, and an L-shaped integrally bent with respect to the first fixed substrate; A second fixed substrate having one elongated mounting hole extending therefrom,
The center of each of the long holes for inserting the anchor bolts of the first fixed substrate is provided so as to be shifted from each other in both the vertical direction and the horizontal direction.

(Operation) That is, in the present invention, a plurality of elongated holes for inserting anchor bolts extending in the horizontal direction are provided vertically on a first fixed substrate fixed via anchor bolts planted on the reinforced concrete wall side. When the anchor bolts are driven into the reinforced concrete wall by selecting one of the anchor bolt insertion slots, the centers of the anchor bolt insertion slots are shifted from each other in both the vertical and horizontal directions. Can be easily avoided.

(Embodiment) Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings shown in FIGS. In the illustrated embodiment according to the present invention, parts having the same structure as those of the conventional structure shown in FIGS. 4 to 7 will be described using the same reference numerals.

That is, as shown in FIG. 1, the reinforced concrete wall mounting plate 7 according to the present invention is mounted on a first fixed substrate 71 fixed via the anchor bolts 5 implanted on the reinforced concrete wall 1 side in a horizontal direction. Two anchor bolt insertion slots 71a, 71b extending in the X direction are provided at the top and bottom, and the centers a, b of these anchor bolt insertion slots 71a, 71b are shifted from each other to at least one of the vertical direction Y or the horizontal direction X. Having the following configuration.

Therefore, in order to fix, for example, an entrance / exit device of an elevator entrance / exit to the reinforced concrete wall 1 of a building using the above-described mounting plate 7 according to the present invention, as shown in FIG. When the position of the anchor hole insertion slot 71b on the side interferes with the reinforcing bar 1a or 1b disposed inside the reinforced concrete wall 1, by selectively using the anchor bolt insertion slot 71a on the upper side,
The anchor bolt 5 can be driven without interfering with the reinforcing bar 1a or 1b of the reinforced concrete wall 1.

By the way, the vertical distance between the anchor bolt insertion slots 71a, 71b provided in the first fixed substrate 71 of the mounting plate 7 is as follows:
It is desirable to determine in consideration of the diameter of the reinforcing bars 1a, 1b and the anchor bolt 5.

In the above embodiment, the mounting plate 7 is attached to the header case.
Although the description has been made with reference to the fixing of the back angles 4 and 4 to which the 10 is attached, as shown in another embodiment in FIG. .

In addition, it goes without saying that the present invention can be variously modified and implemented without departing from the gist of the present invention.

[Effects of the Invention] As is apparent from the above description, according to the present invention, a plurality of horizontally extending plurality of first fixing substrates are fixed to the first fixing substrate fixed via anchor bolts planted on the reinforced concrete wall side. Select one of these long holes for anchor bolt insertion because the long holes for anchor bolt insertion are provided vertically and the centers of these long holes for anchor bolt insertion are displaced from each other both vertically and horizontally. As a result, it is possible to easily avoid interference with the lattice-shaped rebar when the anchor bolt is driven into the reinforced concrete wall, and the fusing work for cutting out by fusing with a gas burner, etc. There is no necessity, so that workability can be improved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a mounting plate for a reinforced concrete wall according to the present invention, FIG. 2 is an explanatory view showing a state of use of the same for an elevator doorway device, and FIG. FIG. 4 is an explanatory view showing another state of use, FIG. 4 is an explanatory view showing a state in which a conventional reinforced concrete wall mounting plate is used for an entrance / exit device of an elevator, and FIG. FIG. 6 and FIG. 6 are perspective views of a conventional mounting plate for a reinforced concrete wall, and FIG. 7 is an explanatory view showing a state where the mounting plate is fixed by a conventional anchor bolt in an enlarged manner. DESCRIPTION OF SYMBOLS 1 ... Reinforced concrete wall, 1a, 1b ... Reinforcement, 5 ... Anchor bolt, 7 ... Mounting plate, 71 ... 1st fixed board, 71a, 71b ... Slot for inserting an anchor bolt, a, b ... ... Center, 72 ... Second fixed board, 72a ... Long hole for mounting, X ... Horizontal direction, Y ... Vertical direction.

Claims (1)

(57) [Claims] 1. A first fixed substrate fixed through an anchor bolt implanted on a reinforced concrete wall side and having a plurality of horizontally extending anchor bolt insertion slots extending in a horizontal direction into which the anchor bolt is inserted. And a second fixed substrate, which is integrally bent in an L-shape with respect to the first fixed substrate, and has a single mounting long hole extending in the center in a central portion thereof. The mounting plate for a reinforced concrete wall, wherein the center of each of the anchor bolt insertion slots of the fixed substrate is shifted from each other in both the vertical and horizontal directions.