JP2745380B2 - Bolt mounting structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a building material, in which bolts are attached to the back surface of a thin plate material such as stone, porcelain plate or tile, and these plate materials are used as finishing materials for buildings. The present invention relates to a bolt mounting structure that can be mechanically and firmly mounted on a mounting base.

[0002]

2. Description of the Related Art Conventionally, as a method of mounting a bolt (diameter 4 to 6 mm) for fixing a plate-like material to a base, a method of attaching a bolt to a back surface of the plate-like material as shown in FIGS. Generally, a hole is cut vertically or obliquely on the back surface of a plate-like material 1 and a bolt 3 is fixed to the hole 2 using an adhesive 4 such as an epoxy resin.

As shown in FIG. 7, when the hole 2 is an oblique hole, a resistance force due to the shape of the hole 2 is added to the pulling force of the bolt, in addition to the adhesive force of the adhesive 4. It is more effective than the vertical drilling shown.

In addition, as shown in FIG. 8, a plate-shaped flange 5 larger than the bolt diameter is welded to one end of the bolt 3, and the flange 5 is adhered to the back surface of the plate-like material 1 with an adhesive 4. There are ways.

[0005]

In the prior art shown in FIGS. 6 and 7, when the thickness of the plate material 1 is reduced to about 20 mm, the depth of the hole 2 can be sufficiently secured. In some cases, local damage of the plate-like material 1 may occur due to the impact at the time of drilling. In addition, the rate at which the fixing depends on the adhesive force of the adhesive 4 is high, and the mounting strength decreases as the adhesive 4 deteriorates.

In the case of FIG. 8, since the fixing depends only on the adhesive 4, if the adhesive force is lost, the bolt 3 will fall off instantaneously.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned disadvantages of the prior art, and to provide a bolt which can be easily and reliably mounted by mechanical means without using an adhesive even when the plate-like material to be mounted is thin. It is to provide a mounting structure.

[0008]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides an inclined groove in which the bottoms of the grooves approach each other in parallel at intervals on the surface of an object to be mounted. The flange is placed between the inclined grooves on the surface of the object to be mounted so that the flanges are in contact with each other, and one end is bent at an acute angle in accordance with the inclination of the inclined grooves, and a bolt through hole is provided in the center. Insert the leg pieces of the plate body into the inclined groove, and in the plate body to be overlapped with each other, project the bolt part of the flanged bolt from the bolt through hole, screw the nut to this and fasten the plate body to each other Or the bolt through hole of the plate body is a notch hole opened at the side end, or the inclined groove provided on the surface of the mounting object has an end on the side of the mounting object. Opening or plates that overlap each other should be A plurality of serrated small grooves are formed at regular intervals in parallel with the longitudinal direction or the short direction of this joint surface, or a rectangular shape in which an end is bent at a right angle under the nut to form a locking piece The plate-like washer is arranged so that the locking pieces are engaged with the side ends of the plate bodies overlapping each other.

[0009]

According to the first aspect of the present invention, the mutually overlapping plates are such that the leg pieces at the ends are caught in the inclined grooves provided on the surface of the object to be attached, and are sandwiched between the flanges of the bolts and the nuts. The bolt is firmly erected on the surface of the object to be mounted because the flange portion is confined between the surface of the object and the plate body.

According to the second aspect of the present invention, in addition to the above-described operation, the bolt through hole of the plate is a cutout hole opened at a side end of the plate, so that the bolt is partially cut off. The bolt can be penetrated through the plate simply by shifting the plate laterally so as to enter the inside from the opening of the notch.

According to the third aspect of the present invention, when inserting the leg piece at the end of the plate into the inclined groove, the end of the plate at the end of the inclined groove that opens to the side of the object to be attached. What is necessary is just to move the leg piece of this, and to move sideways as it is.

According to the fourth aspect of the present invention, the plate bodies to be superimposed on each other have a plurality of sawtooth-shaped small grooves formed at equal intervals on a joint surface thereof in parallel with a longitudinal direction or a lateral direction of the joint surface. Because of the formation, the saw-tooth-shaped small grooves can be prevented from meshing with each other and the plate body can be prevented from shifting in the length direction.

According to the fifth aspect of the present invention, in addition to the above-described operation, the locking pieces of the rectangular plate-shaped washers are engaged with the side ends of the plates that overlap with each other, so that the plates are formed by the washers. And can be prevented from shifting in the width direction.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is an exploded perspective view showing a first embodiment of a bolt mounting structure according to the present invention, and FIG. 2 is an upper side view of the same, where 1 is a plate-like material as an object to be mounted. This plate-shaped material 1 is, for example, a metal plate, a metal frame, a plaster board, a calcium silicate plate, or AL as a finishing material or a base material for construction.
Non-cement type molded board such as C board, hollow cement board,
Examples include a cement-based molded board such as a fiber-reinforced cement board.

According to the present invention, the surface (back surface) of
The inclined grooves 6 in which the bottoms of the grooves approach each other are provided in parallel at intervals. This inclined groove 6 has a width of about 2.5 mm and a depth of 8 mm.
The length is about 30 mm, and the end is opened to the side of the plate material 1.

On the other hand, reference numerals 7 and 8 denote metal plates made of steel, aluminum or the like, which form leg pieces 7a and 8a having one end bent at an acute angle in accordance with the inclination of the inclined groove 6. A bolt through hole was provided at the center. This bolt through hole may be a circular hole, but in this embodiment, it is a cutout hole 9 opened at the side end of the plate bodies 7 and 8. The notches 9 are provided in the plates 7 and 8 so as to open in opposite directions.

The bolt 3 is a flanged bolt formed by welding a plate-like flange 5 having a diameter larger than the bolt diameter at the end.

The bolt 3 is placed on the surface of the plate-like material 1 between the inclined grooves 6 so that the flange 5 abuts thereon. The legs 7a, 8a are inserted into the inclined groove 6 while being overlapped. At this time, the leg pieces 7a and 8a may be aligned with the ends of the inclined grooves 6 opening to the side of the plate material 1, and the plate bodies 7 and 8 may be moved laterally as they are.

In this manner, if the nuts 10 are screwed into the projecting portions of the bolts 3 to fasten the plate members 7 and 8 to each other, the bolts 3 have the flanges 5 on the surface of the plate material 1. By being confined between the sheet material 7 and the plate body 7, it is firmly erected on the surface of the plate material 1.

In this manner, the bolt 3 is fixed by the nut 10 and a nut for fixing the plate material 1 to a base material or the like is screwed to the bolt 3 again. Numeral 10 can also use a common mounting nut for the plate-shaped material 1 itself.

It is also conceivable that the end of the inclined groove 6 does not open to the side of the plate material 1. This is because even if the inclined groove 6 is provided at the center of the plate material 1, the leg pieces 7a and 8a of the plate members 7 and 8 can be inserted.

As a second embodiment, as shown in FIG. 3, the plate bodies 7 and 8 are formed by arranging a plurality of sawtooth-shaped small grooves 11 at equal intervals on the mutual joining surface in a direction parallel to the short side of the joining surface. did.
(In the illustrated example, only the plate body 7 is shown, but the plate body 8 is also provided with the serrated small grooves 11 on the back surface side.)

In this way, when the plates 7 and 8 are overlapped, the serrated small grooves 11 can be prevented from meshing with each other and the plates 7 and 8 from shifting in the length direction.

As a third embodiment, a rectangular plate-like washer 12 is provided below the nut 10, and this washer 12 is bent at its right angle as shown in FIG. 12
a was formed. The width between the locking pieces 12a of the washer 12 is:
The height of the locking piece 12a is adjusted to the width of the plate
8 and the same thickness.

As shown in FIG. 4, the washer 12 is displaced in the width direction by the engagement of the locking pieces 12a with the side ends of the plates 7, 8 which are overlapped with each other. Can be prevented.

Although not shown, it is conceivable that the sawtooth-shaped small groove 11 is provided in the longitudinal direction of the joint surface between the plate bodies 7 and 8.

In the above embodiment, the plate-like material 1 is used as an object to be mounted.
Although the case has been described, the present invention can be similarly applied as long as the inclined groove 6 can be provided even when the inclined groove 6 can be provided, such as a column having a large thickness.

[0028]

As described above, according to the bolt mounting structure of the present invention, even if the plate-like material to be mounted is thin, it can be mounted simply and securely by mechanical means without using an adhesive. Things.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a first embodiment of a bolt mounting structure according to the present invention.

FIG. 2 is a side view showing a first embodiment of the bolt mounting structure of the present invention.

FIG. 3 is a perspective view showing an application example of a plate used in the present invention.

FIG. 4 is a plan view showing a third embodiment of the bolt mounting structure of the present invention.

FIG. 5 is a perspective view of a washer.

FIG. 6 is a longitudinal sectional side view showing a first example of a conventional example.

FIG. 7 is a vertical sectional side view showing a second example of the conventional example.

FIG. 8 is a vertical sectional side view showing a third example of the conventional example.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Plate material 2 ... Hole 3 ... Bolt 4 ... Adhesive 5 ... Flange 6 ... Slant groove 7, 8 ... Plate body 7a, 8a ... Leg piece 9 ... Notch hole 10 ... Nut 11 ... Serrated small groove 12 ... Washer 12a ... locking piece

Claims (5)

(57) [Claims] 1. An inclined groove in which the bottoms of the grooves approach each other is provided in parallel on the surface of an object to be attached at intervals and a flanged bolt is provided between the inclined grooves on the surface of the object to be attached. A flange is placed so as to abut, a leg is formed by bending one end at an acute angle in accordance with the inclination of the inclined groove, and the leg of a plate having a bolt through hole in the center is inserted into the inclined groove. A bolt mounting structure characterized in that the plate bodies to be overlapped with each other project a bolt portion of a flanged bolt from a bolt through hole, and a nut is screwed into the bolt portion to fasten the plate members to each other. 2. The bolt mounting structure according to claim 1, wherein the bolt through hole of the plate is a cutout hole opened at a side end. 3. The bolt mounting structure according to claim 1, wherein an end of the inclined groove provided on the surface of the mounted object is opened on a side portion of the mounted object. 4. A plurality of sawtooth-shaped small grooves are formed at equal intervals on a mutually joined plate in parallel with each other in a longitudinal direction or a short direction of the joined surface. The bolt mounting structure according to any one of the above. 5. A rectangular plate-shaped washer having a locking piece formed by bending an end portion of the nut at a right angle under the nut so that the locking piece engages with a side end of the plate body overlapping each other. The bolt mounting structure according to any one of claims 1 to 4, which is provided.