JPH04265353A - Water-proof joint material - Google Patents

Abstract

PURPOSE:To eliminate a cover from the joint of exterior material and improve water-proof property. CONSTITUTION:A cross-sectional area is composed of an engaging channel 4, a projecting piece 5, and a tongue piece 6, and the level of the projecting piece 5 is set to be almost equal to that of the bottom surface of the engaging channel 4, and the level of the tongue piece 6 is set to be almost equal to that of the engaging channel 4. By engaging engaging-tongue pieces arranged on both the sides of the facing surface of exterior material, with the engaging channel 4 and forming joint sections, capillarity is suppressed with water-proof property due to the engaging channel 4, flashing due to the tongue piece 6 and a space between the projecting piece 5 and the facing surface. Accordingly, covering is not required, and the joint sections having improved water-proof property can be formed.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waterproof joint material used for joints when roofs and walls are formed using exterior materials such as horizontal roofing materials or horizontal wall materials.

0002

[Prior Art] Conventionally, the joint structure when constructing exterior materials such as horizontal roofing materials and horizontal wall materials was: ■Both edges of the exterior material were bent in a seam shape and joined together. The structure was as follows: (1) a structure in which the side edges of the exterior material were sandwiched between upper and lower sides of the siding board and cover material, and (2) a structure in which the exterior materials were simply stacked on top of each other.

0003

[Problems to be Solved by the Invention] However, in these structures, (1) is inferior in waterproofness, and (2) and (2) have disadvantages in that stacking of exterior materials results in irregular steps, resulting in a deterioration in design. In addition, in case (2), especially when applied to roofing materials, there was a risk that the cover material would slide in the longitudinal direction of the exterior material when removing snow in snowy regions, and the joint portion would be exposed to the outside.

0004

[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention has a vertical cross-section formed of at least a sill portion and a ridge portion, and a cross-section formed with a pot-shaped locking groove approximately in the center. At the same time, both ends of the locking groove are folded back outward along the locking groove to extend to approximately the same height as the bottom surface of the locking groove, and the tips thereof are extended outward on both sides approximately horizontally to protrude. By using a waterproof joint material with a flap-like tongue piece at the same height as the locking groove at the tip of the protruding piece, both ends of the decorative surface of the exterior material can be folded back to the back side. The locking tongue pieces are hooked onto both sides of the locking groove to eliminate the need for a cover, and the rainwater at the joint flows down through the locking groove, and the gap between the exterior material and the protruding piece prevents capillary action. This invention relates to a waterproof joint material that can form a highly waterproof joint.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The waterproof joint material according to the present invention will be explained in detail below with reference to the drawings. FIG. 1 is an external view showing a typical example of the above-mentioned waterproof joint material A. For example, FIG. 3(a), (
It is located at the lower part of the vertical joint when the exterior material B shown in b) is constructed, and provides waterproofness and connects the side edges of the exterior material B. To explain further, waterproof joint materials A include color steel plates, stainless steel plates, copper plates, aluminum plates, titanium steel plates, clad steel plates, sandwich steel plates,
It is made by bending and press forming a metal material such as a heat insulating steel plate, and as shown in FIG. 5, it has a padding part 1 that comes into contact with the back surface of the decorative surface 7 of the exterior material B and locks the exterior material B; A ridge part 2 formed by bending the lower side of the lined part 1 toward the back side, and a rain return part 3 formed by bending the upper side of the lined part 1 towards the front side as necessary.
It was formed from. In addition, waterproof joint material A is shown in Figure 1.
As shown in an enlarged view in FIG. 2, which is an end view taken along the A-A line, in the width direction, both edges of the locking groove 4 are folded back toward the front side to form a pot-shaped cross section, and both ends of the locking groove 4 are turned outward. A protruding piece 5 that is folded back and extends along the locking groove 4 and projects horizontally outward on both sides at approximately the same height as the bottom surface 4a of the locking groove 4, and a locking groove at the tip of the protruding piece 5. 4 and a tongue piece 6 bent in the shape of a lower seam and having approximately the same height. This locking groove 4
For example, the exterior material B as shown in FIGS. 3(a) and 3(b) (ro-ro line end view of (a)), that is, the decorative surface 7 has a locking part 9 at the upper end and an engaging part at the lower end. 10, and a decorative surface 7
The locking tongues 8 of the exterior material B, which have locking tongues 8 bent toward the back side, are locked at both ends of the exterior material B, and the exterior materials B are connected to each other and function as drainage channels for rainwater. It is something. In addition, since the protruding piece 5 is at approximately the same height as the bottom surface 4a of the locking groove 4, a gap is formed between the protruding piece 5 and the decorative surface 7 of the exterior material B when it is installed, preventing capillary phenomenon, and the tongue piece 6 It serves as a rain return and also functions as a drainage channel to drain this rainwater to the lower level. The opening width W1 of the locking groove 4 has a relationship with the width W2 of the locking tongue 8 such that W1≧W2.

Next, a construction example will be briefly explained. It is now assumed that waterproof joint material A as shown in FIG. 1 and exterior material B as shown in FIGS. 3(a) and 3(b) are used. Therefore, one locking tongue piece 8 of the exterior material B is inserted into the locking groove 4 of the waterproof joint material A.
As shown in FIG.
Lock it and place it on the ground. Next, the locking tongue pieces 8 of the adjacent exterior material B are fitted and locked. By doing this, the joint will have an appearance as shown in Figure 4,
The exterior material B and the waterproof joint material A are shown in FIG. In such a joint part, as shown in FIG.
connects the exterior materials B to each other and forms a pot to prevent rainwater from running sideways, and quickly drains it onto the decorative surface 7 of the lower exterior material B (not shown) as a waterway. It is. In addition, since the protruding piece 5 forms a gap α with the decorative surface 7 of the exterior material B, even if rainwater enters from the locking groove 4, capillary action will not be induced. The top of the protruding piece 5 also functions as a second discharge path, further enhancing waterproofness. Furthermore, as shown in FIG. 4, since a cover is not required, workability is good. Note that the waterproof joint material A itself is fixed to the exterior material B, and does not require nail driving, improving workability and preventing water leakage. Furthermore, since the exterior material B and the waterproof joint material A are connected by fitting the locking groove 4 and the locking tongue piece 8, even if the exterior material B expands or contracts due to temperature changes, the expansion and contraction of the exterior material B will be absorbed by the joint. becomes possible.

What has been described above is only one embodiment of the waterproof joint material A according to the present invention, and it is also possible to form it as shown in FIGS. 6, 7, and 8. That is, FIGS. 6(a) to (c)
) is a waterproof joint material A in which the ridge portion 2 and rain return portion 3 are shaped like a box, a U-shape, a U-shape, etc. Moreover, FIGS. 7(a) and 7(b) show a waterproof joint material A in which the exterior material A can be slid and engaged by notching the locking groove 4 near the ridge 2. Furthermore, FIG. 8 shows a waterproof joint material A according to FIG. This is a waterproof joint material A made higher than the groove 4. Of course, it is also possible to create a waterproof joint material A that combines each of FIGS. 6, 7, and 8.

[0008]

[Effects of the Invention] As described above, according to the waterproof joint material according to the present invention, the joint part does not require a cover, and the workability is greatly improved because the waterproof joint material does not require nailing. improve. Additionally, the locking groove, protruding piece, and tongue piece each have features that contribute to improving waterproofness. In addition, since it is connected to the exterior material by engagement between the locking groove and the locking tongue, expansion and contraction of the exterior material due to temperature changes can be absorbed. It has the following effects and characteristics.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing a typical example of a waterproof joint material according to the present invention.

FIG. 2 is an enlarged end view taken along line A--I in FIG. 1;

FIG. 3 is a perspective view and a roller end view showing an example of an exterior material that engages with the waterproof joint material according to the present invention.

FIG. 4 is an explanatory diagram showing the appearance of a joint portion formed using the waterproof joint material according to the present invention.

FIG. 5 is an enlarged end view taken along the line H--H in FIG. 4;

FIG. 6 is an external view showing a modification of the waterproof joint material according to the present invention.

FIG. 7 is an external view showing a modification of the waterproof joint material according to the present invention.

8 is an end view showing a modified example of the waterproof joint material according to the present invention according to FIG. 2. FIG.

[Explanation of symbols]

A Waterproof joint material 4 Locking groove 5 Projecting piece 6 Tongue piece

Claims (1)

[Claims] Claim 1: A locking groove having a ridge portion having at least a bent lower side of the lining portion, and a locking groove having a urn-like cross section in the center extending from the lining portion to the ridge portion; Both ends of the groove are extended to both sides to form a protruding piece, and a lower flap-like tongue piece is formed at the tip of the protruding piece, and the protruding piece is bent and extended along the locking groove, and the protruding piece is bent and extended along the locking groove. A waterproof joint material that extends substantially horizontally at approximately the same height as the bottom surface of the locking groove, and furthermore, the height of the tongue piece is made approximately equal to the height of the locking groove.