JPH0530330U - Locking structure of ceramic decorative plate - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] Regarding the structure for locking the ceramic decorative plate, the ceramic decorative plate is locked to the backing board with good workability using simple metal fittings. [Structure] A backing board 1 and a ceramic decorative plate 2 are laminated with an adhesive 3, a blind hole 4 extending from the side of the backing board 1 to the middle of the ceramic decorative plate 2 is provided, and an insertion hole 11 for a fixing pin 20 and a communication therewith. In addition, the cylindrical base pin 10 provided with the slit 12 having a width narrower than the diameter of the fixing pin 20 up to the end surface is fitted into the blind hole 4, and the fixing pin 20 is driven into the insertion hole 11 to form the slit 12. By expanding, the lower half part of the cylindrical base pin 10 was expanded and pressed against the blind hole 4.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a structure for locking a ceramic decorative plate, particularly a thin and large ceramic decorative plate to a wall backing board.

[0002]

[Prior Art]

 Ceramic decorative plates are large and thin and have good workability, so they are often used as wall decorative plates.

This decorative plate is fixed to a backing board, which is usually a cement-based extrusion molding material, with an adhesive, for example, an epoxy-based two-component curing adhesive.

However, it is well known that the adhesive has a decrease in adhesive strength over time and is thermally deteriorated by fire or the like.

[0005]

[Challenges for devising]

 Therefore, for example, a method in which a commonly used anchor is driven and locked can be considered, but the ceramic decorative plate has a thickness of about 4 to 5 mm, which makes it extremely difficult to work.

An object of the present invention is to provide a locking means having a simple structure and an excellent reinforcing effect.

[0007]

[Means for solving the problem]

 In order to solve the above-mentioned problems, in this invention, a backing board and a ceramic decorative plate are laminated with an adhesive, and a blind hole extending from the side of the backing board to the middle of the ceramic decorative plate is provided. A cylindrical base pin with a narrower width than the diameter of the fixing pin that communicates with it up to the end face is fitted into the blind hole, and the fixing pin is driven into the insertion hole to expand the slit. The lower half of the base pin was enlarged and pressed into the blind hole.

[0008]

[Action]

 By enlarging the slit part of the cylindrical base pin with the fixing pin, the outer periphery of the cylindrical base pin is pressed against the blind hole, and the ceramic decorative plate and the lining board are connected by the cylindrical base pin.

[0009]

【Example】

 An embodiment of the present invention will be described below with reference to the accompanying drawings.

First, as shown in FIG. 1, a backing board 1 made of a cement-based extruded board or the like and a ceramic decorative board 2 are bonded to each other with an adhesive 3 such as an epoxy-based two-component curing adhesive. ..

Then, as shown in FIG. 2, a blind hole 4 extending from the side of the backing board 1 to the middle of the ceramic decorative plate 2 is provided.

A metal fitting attached to the blind hole 4 is shown in FIG. As shown in the figure, the cylindrical base pin 10 is provided with an insertion hole 11 for the fixing pin 20 and a slit 12 communicating with the insertion hole 11 and extending radially through to the end face. The width of the slit 12 is smaller than the diameter of the fixing pin 20.

The tubular base pin 10 as described above is fitted into the blind hole 4 as shown in FIG. At this time, the depth of the blind hole 4 is set such that the slit 12 of the cylindrical base pin 10 extends over the ceramic decorative plate 2 and the backing board 1. Then, when the fixing pin 20 is driven through the insertion hole 11, the width of the slit 12 is made smaller than the diameter of the fixing pin 20, so the slit 12 is expanded, and at the same time, the bottom of the cylindrical base pin corresponding to the slit 12 is pushed. The half part is enlarged and pressed against the blind hole 4. Since this pressure contact portion extends over the lining board 1 and the ceramic decorative plate 2, it serves as a reinforcing means for connecting the board 1 and the decorative plate 2.

It should be noted that such a locking structure can be provided not only at one location but also at a plurality of locations.

[0015]

【effect】

 According to the present invention, as described above, the blind hole is provided in the backing board and the ceramic decorative plate, the cylindrical base pin is fitted into the blind hole, and the fixing pin is driven, whereby the backing board and the ceramic decorative plate are joined. Since it can be reinforced, workability is extremely good, and since it is locked by the expanded pressure contact of the cylindrical base pin with respect to the blind hole, the reinforcing effect is also high.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a laminated body of a backing board and a ceramic decorative plate.

FIG. 2 is a cross-sectional view showing a state in which a blind hole is provided in the above laminated body.

FIG. 3 is a perspective view showing a locking cylindrical base pin and a fixing pin.

FIG. 4 is a cross-sectional view of a laminated body in which a tubular base pin is fitted.

[Explanation of symbols]

 1 Backing Board 2 Ceramic Decorative Plate 3 Adhesive 4 Blind Hole 10 Cylindrical Base Pin 11 Insertion Hole 12 Slit 20 Fixing Pin

Claims (1)

[Scope of utility model registration request] 1. A backing board and a ceramic decorative plate are laminated with an adhesive, and a blind hole extending from the side of the backing board to the middle of the ceramic decorative plate is provided, and an insertion hole for the fixing pin and a fixing pin communicating therewith are provided. The lower half of the tubular base pin is formed by fitting a tubular base pin having a slit narrower than the diameter up to the end face into the blind hole, driving a fixing pin into the insertion hole, and expanding the slit. Enlarged structure and locking structure of ceramic decorative plate pressed against the blind hole.