JPH0726689A - Mounting structure of wall board - Google Patents

Abstract

PURPOSE:To apply the mounting structure of a wall board even to a thin wall board, to prevent the generation of tensile stress and to mount the wall board easily and positively. CONSTITUTION:A keyhole-shaped engaging groove (113)is formed to the rear of a wall board (E), and a nut member (C) with a large diametral collar section (12b) retained to the groove (11) is inserted and engaged to the groove (II). A clamping bolt (D) inserted to the bearer (B) of the surface of the backing (A) of a building structure is screwed and clamped to the nut member (C), thus installing the wall board (E) onto the surface of the backing (A) of the building structure.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wall plate mounting structure used for mounting on the surface of a base of a building structure to improve its appearance.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 4, a straight mounting hole (2) is formed on the back surface of a wall plate (1), and a split sleeve (3) having a tapered hole is formed in this mounting hole (2). ) And an anchor bolt (4) having a tapered surface that fits into the tapered hole are inserted, and the wall plate (1) is attached to the surface of the foundation (A) of the building structure to which the wall plate (1) is to be attached via the bolt (5). By inserting the anchor bolt (4) into the attached support fitting (6) and tightening the nut (7), the split sleeve (3) is expanded in the mounting hole (2), and the split sleeve (3). The wall plate (1) was attached to the surface of the groundwork (A) of the building structure by crimping the outer peripheral surface of the inside of the attachment hole (2).

[0003]

In the conventional mounting structure described above, the moving distance in the axial direction of the bolt due to the tightening of the anchor bolt (4) is the working distance in the direction in which the split sleeve (3) is expanded through the tapered surface. Is converted to
In order to crimp the split sleeve (3) into the mounting hole (2) with a predetermined crimping force, it is necessary to lengthen the axial length of the tapered surface to some extent and deepen the mounting hole (2). However, there is a problem that it cannot be applied to thin wall boards.

On the other hand, in the conventional mounting structure, the split sleeve (3) is expanded in diameter by the anchor bolt (4) and crimped inside the mounting hole (2), so that the peripheral edge of the bottom portion of the mounting hole (2) is fixed. The tensile stress is concentrated, and the wall plate (1) is introduced from the peripheral portion of the bottom.
However, there was a problem that cracks were likely to occur.

In order to solve the above problems, it is necessary to increase the thickness of the wall plate (1), which leads to an increase in the cost of the wall plate (1), and at the same time, when the wall plate (1) is thickened, the wall plate (1) is increased. (1) A new problem arises in that the weight of the whole becomes large and it becomes necessary to improve the rigidity of the supporting member.

In the conventional mounting structure, the crimping force of the split sleeve (3) to the mounting hole (2) is adjusted by controlling the tightening torque of the nut (7) with respect to the anchor bolt (4). Variation in the hole diameter of the hole (2), different tightening force of the nut (7) depending on the operator, and variation in the dimensional accuracy of the split sleeve (3) cannot be avoided.
There is a problem that the holding power of the wall plate (1) also varies.

The present invention has been proposed in view of the above problems of the conventional wall plate mounting structure, and its object is to be applicable to a thin wall plate without causing tensile stress to the wall plate. ,
It is intended to provide a wall plate mounting structure that can be easily and surely mounted.

[0008]

In order to achieve the above object, the present invention provides a nut member having a keyhole-shaped locking groove on the back surface of a wall plate and having a large-diameter flange portion to be locked in the groove. The wall plate is attached to the surface of the groundwork of the building structure by inserting and locking it in the groove and tightening the tightening bolt inserted into the support metal fitting on the surface of the groundwork of the building structure by screwing and tightening the nut member.

[0009]

[Function] The large-diameter flange portion of the nut member is inserted and locked in the keyhole-shaped locking groove on the back surface of the wall plate, and the tightening bolt is inserted into the supporting metal fitting on the surface of the foundation of the building structure and screwed into the nut member. Tighten tightly. As a result, the nut member moves in the axial direction of the tightening bolt, and the large-diameter brim portion draws and fixes the wall plate to the supporting metal fitting side of the base surface of the building structure.

[0010]

1 to 3 are views for explaining a wall plate mounting structure according to the present invention. In FIG. 1, (A) is a base of a building structure, (B) is a support metal fitting, and ( C) is a nut member, (D) is a tightening bolt, and (E) is a wall plate.

The support fitting (B) is attached to the surface of the base (A) with bolts (10), and an insertion hole (10a) for the tightening bolt (D) is formed. In addition, this insertion hole (1
0a) is provided with a groove (10b) for preventing rotation of the nut member (C) at the opening end on the wall plate mounting surface side. In FIG. 1, the anti-rotation groove (10b) is formed by cutting the wall portion of the support fitting (B) on the wall plate mounting surface side.
This may be formed by pressing.

The wall board (E) is, for example, panels or boards for exterior decoration of a building structure, and the material thereof is, for example, glass, stone, concrete, plaster, wood, plywood, synthetic resin, fiber-reinforced composite. Any material, metal, ceramics, etc.,
Not restricted. On the back surface of the wall plate (E), as shown in (C) and (D) of FIGS. 1 and 2, a large-diameter hole portion in which the inlet hole portion (11a) and the deep hole portion (11b) have the same diameter. (11c) and the large-diameter hole (11c), and the inlet hole (11
d) has a smaller diameter than the large diameter hole portion (11c), and the deep hole portion (11e) is the deep hole portion (11c) of the large diameter hole portion (11c).
b) with the same diameter as the series, but with this small diameter inlet hole (11
between the d) and the large-diameter deep hole (11e).
If there are a predetermined number of keyhole-shaped locking grooves (11) having small-diameter hole portions (11g) forming 1f) at predetermined positions, for example, in the case of one square wall plate (E), they are formed at the four corners thereof.

The nut member (C) is shown in FIGS. 2 (A) and 2 (B).
As shown in FIG. 2, the keyhole-shaped locking groove (11) of the wall plate (E)
Body (12g) that can pass through the small diameter hole (11g)
a) is formed in series at the tip of the body portion (12a), and can be inserted from the large diameter hole portion (11c) of the keyhole-shaped locking groove (11), and the inner hole portion (11b) (11e). ), And has a large-diameter flange portion (12b) that is locked to the locking step portion (11f), and has a screw hole (1) in the body portion (12a).
2c) is provided. The locking step (11f)
Shows the case where the taper surface is used, but the shape is not limited to this and other shapes can be used. The body (12
On the outer periphery of the rear end portion of a), a rotation preventing corner portion (12a ') is formed in series.

The tightening bolt (D) has a screw portion (13a) which is screwed into the screw hole (12c) of the nut member (C).
Is provided at the front end, and the hexagonal head (13b) is integrally provided at the rear end. This tightening bolt (D) is a washer (1
The hexagonal head (13b) is fastened to the support metal fitting (B) via the 4), and the back surface of the wall plate (E) is supported by the cushioning material (15) such as rubber or Teflon. It is configured to be crimped to (B). The cushioning material (15) absorbs and absorbs impact between the wall plate (E) and the support fitting (B), and also between the locking step portion (11f) and the large-diameter collar portion (12b). Except for exerting an excessive tightening force and exerting a role of uniformly applying a tightening force to these portions, variations in the dimensional accuracy of the keyhole-shaped locking groove (11) and nut members (C) It is possible to absorb the variation in manufacturing dimensional accuracy.

The embodiment of the present invention is constructed as described above, and its operation will be described below. FIG. 3 is a front view of the mounting example, and the mounting direction of the keyhole-shaped locking groove (11) is, as shown in the figure, the small diameter hole portion (11 g) is up and the large diameter hole portion (1
It is preferable to attach the wall plate (E) to the base (A) so that 1c) faces downward. By doing so, even when the tightening bolt (D) is loosened, the nut member (C) is caused by the weight of the wall plate (E) to cause the nut member (C) to have a small-diameter hole portion (1) of the keyhole-shaped locking groove (11).
The wall plate (E) can be prevented from coming out by being located on the 1g) side. The mounting direction of the keyhole-shaped locking groove (11) is
It is not limited to the illustrated direction.

In order to attach the wall plate (E) to the base (A), first, the large diameter flange portion (12b) at the tip of the body portion (12a) of the nut member (C) is attached to the back surface of the wall plate (E). Insert it into the keyhole-shaped locking groove (11) from its large-diameter hole (11c), move it to the end on the small-diameter hole (11g) side, and then tighten the tightening bolt (D) at that position to the supporting bracket (B). Through the insertion hole (10a) of the nut member (C) and screwed into the screw hole (12c),
Tighten. As a result, the nut member (C) moves in the axial direction of the tightening bolt (D), and the large-diameter flange portion (12b).
Is moved to the inlet side in the small-diameter hole portion (11g) of the keyhole-shaped locking groove (11) on the back surface of the wall plate (E), and is made larger than the inlet hole portion (11d) of the small-diameter hole portion (11g). Diameter deep hole (1
1e) is abutted and locked to the locking step (11f). Next, the support fitting (B) is attached to the surface of the foundation (A) of the building structure with bolts (10).

[0017]

According to the present invention, the large-diameter flange portion of the nut member is inserted and locked in the keyhole-shaped locking groove on the back surface of the wall plate, and the tightening bolt is used as the supporting metal fitting on the surface of the foundation of the building structure. By inserting and screwing and tightening to the nut member, the wall plate can be attracted and fixed to the supporting metal fitting side of the surface of the foundation of the building structure, so tensile stress does not occur in the keyhole-shaped locking groove, The wall board can be easily and surely attached to the surface of the base of the building structure. Further, according to the present invention, the depth of the keyhole-shaped locking groove can be made shallower than in the conventional case in which the anchor bolt is moved in the axial direction to expand the split sleeve, and thus the depth is thin. It can also be applied to wall boards.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view showing an example of a wall plate mounting structure according to the present invention.

2A is a plan view of a nut member, FIG. 2B is a partial side sectional view of the nut member, FIG. 2C is a front view of a keyhole-shaped locking groove of a wall plate, and FIG. XX sectional drawing of a stop groove.

FIG. 3 is a front view showing an example of how the wall plate is attached to the base surface.

FIG. 4 is a vertical sectional side view showing an example of a conventional wall plate mounting structure.

[Explanation of symbols]

 A Base of building structure B Support metal fitting C Nut member D Tightening bolt E Wall plate 11 Keyhole locking groove

Claims (1)

[Claims] 1. A keyhole-shaped locking groove is provided on the back surface of a wall plate, and a nut member having a large-diameter brim portion that is locked in the groove is inserted and locked in the groove, and A wall plate mounting structure, characterized in that a tightening bolt inserted through a support fitting is screwed and tightened onto the nut member to mount the wall plate on a surface of a base of a building structure.