JPH036727Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a joint device for an expansion joint, and more particularly to a joint device for a cover material of an expansion joint that is connected to a gap between vertical surfaces of opposing building frames.

Generally, as shown in FIG. 5, when an expansion joint is provided in a gap S formed between vertical surfaces 1a and 2a of opposing building frames 1 and 2,
The cover is constructed by vertically connecting a plurality of cover materials 7A, 7B, etc., and a joint member 8 is disposed at the connecting portion where these cover materials 7A, 7B, ... are connected in a row. At first, it should be installed externally on the upper and lower cover materials 7A and 7B as shown in the figure, or
Or, it was usual to do this by installing it inside the upper and lower cover members 7A and 7B.

However, when the joint member 8 is installed externally as shown in the figure, the gap between the upper end of the joint member 8 and the outer surface of the upper cover material 7A is exposed upward to the outside, so it is easy to remove from the gap. rainwater can easily enter. On the other hand, if the joint member is installed internally, the gap between the outer surface of the joint member and the upper end of the lower cover material will be exposed upward to the outside, and rainwater will similarly easily infiltrate through the gap. It's easy to do. Therefore, the gap between the joint member and the cover material must be completely airtight. However, since the opposing building frames move in relatively different directions due to uneven settlement, temperature changes, etc., it is technically very difficult to maintain the airtightness of the gap for a correspondingly long time. It takes a lot of time to make it airtight.

The purpose of this invention is to solve the above-mentioned drawbacks and to propose a joint device for an expansion joint that can effectively prevent rainwater from entering.

Hereinafter, embodiments of this invention will be explained with reference to the drawings.

In FIGS. 1, 2, and 3, the symbol A indicates an expansion joint. This expansion joint A is connected to the opposing building frame 1,
Long support members 3, 3 are respectively fixed in the gap S between the vertical surfaces 1a, 2a of 2, and these support members 3, 3
The locking edges 4, 4 formed in the locking edges 4, 4 are opposed to each other, and the cover material 7 is locked to the locking protrusions 5, 5 at the tips of the locking edges 4, 4 via the spring locking fittings 6. A material 7 is placed over the gap S. The spring locking fitting 6 is formed in a W-shape from a metal spring material, and has locking receivers 10 at the center and both left and right ends.
11, 11 are formed. The cover material 7 includes a main body 7a made of stainless steel or extruded material, and the main body 7
It consists of a locking member 7b made of extruded material or stainless steel and fixed to the back side of a. Both ends of the main body 7a are bent into a U-shape, and the airtight material 1
2 is installed. Furthermore, a locking protrusion 13 is formed at the center of the locking member 7b. Cover material 7
When attaching to the supporting members 3, 3, the locking receivers 10 at the center of the plurality of spring locking fittings 6 are placed at predetermined intervals along the locking protrusions 13 of the cover material 7.
are engaged, and in this state, the cover material 7 is covered from above the gap S, and the left and right locking receivers 11, 11 of the spring locking fitting 6 are connected to the locking edges 4, 4 of the supporting members 3, 3.
, and lock it to the locking protrusions 5, 5 on the tip. Note that 14 is a water stop plate that is stretched across the gap S.

By the way, a plurality of cover materials 7 are arranged in a row in the vertical direction along the gap S between the building frames 1 and 2.
A joint member 8 is disposed between the upper and lower cover members 7A and 7B. The joint member 8 has outer surfaces 16 and 17 and both side surfaces 1, respectively.
8, 18 and 19, 19 are bent into a U-shape, and an internal part 8b and an external part 8b are integrally formed via a step part 15, and the external part 16 of the internal part 8a is 18 and 18 have an outer surface shape that substantially matches the inner surface shape of the upper cover material 7A. On the other hand, the external portion 8b has an inner surface shape that substantially matches the outer surface shape of the lower cover material 7B.

When the upper and lower cover materials 7A and 7B are connected via the joint member 8, first the upper cover material 7
The locking member 7b on the inner surface of A is removed by a predetermined interval, and the internal part 8a of the joint member 8 is fitted along the inner surface of the cover material 7A, and the inner part 8a of the joint member 8 is inserted along the outer surface of the lower cover material 7B. Then, the external portion 8b of the joint member 8 is fitted. At this time, when attaching the joint member 8, airtight materials 20, 20... are interposed between the upper cover material 7A and the internal part 8a and between the lower cover material 7B and the external part 8b. . In normal cases, the airtight materials 20, 20 may be adhered to the back surface of the joint member 8 in advance. In this state, the plurality of spring locking fittings 6 are next attached to the upper and lower cover materials 7A, 7B, and then the cover materials 7A,
7B onto the supporting members 3, 3 of the building frames 1, 2 to engage the spring locking fittings 6 to the locking edges 4, 4. The same applies to the continuous arrangement of the upper cover material 7A and the upper cover material or the lower cover material 7B and the lower cover material.

In this way, the upper part of the joint member 8 is provided along the inner surface of the upper cover material 7A, and the lower part of the joint member 8 is provided along the outer surface of the lower cover material 7B. All of the gaps that appear to the outside between the cover material and the joint members 7A, 7B are opened downward. That is, the gap between the lower end of the upper cover material 7A and the upper part of the joint member 8 and the gap between the upper end of the lower cover material 7B and the lower end of the joint member 8 both open downward. . As a result, rainwater flows from the surface of the upper cover material 7A to the surface of the joint member 8, and further to the lower cover material 7B.
Since the water flows down the surface of the pipe, it does not seep into the interior through the continuous parts.

Next, FIG. 4 shows another example of a configuration in which expansion joints are connected, and in this example, one building frame 1, 2 and the other building frame 1, 2 form an inside corner. It's like that. In this case as well, the expansion joint A is connected to the supporting members 3, which face each other across the gap S of both building frames 1, 2.
The cover material 7 is attached to the locking edges 4, 4 of 3 through spring locking fittings 6 in a pulled state. An engagement edge 21 is formed at the end of the supporting member 3 on the side of the building frame 2 opposite to the locking edge 4. The cover material 7 is made of an extruded material such as stainless steel or aluminum, and is attached to the building frame 1,
It is bent at a substantially right angle by the two relative aspects. A locking member 7b made of extruded aluminum or the like is fixed to a bent portion of the main body 7a, and a locking protrusion 13 is formed at one end of the locking member 7b, and an engaging portion 22 is bent at the other end. . Then, the cover material 7 has its locking protrusion 1 as in the example shown in FIG.
3, and in this state, the spring locking fitting 6 is attached to the supporting members 3, 3.
It is attached by pressing and engaging the locking edges 4, 4 of the. At this time, the engaging portion 22 and the bent edge 23 of the cover material 7 are arranged so as to be able to engage with the locking edge 4 and the engaging edge 21 of the support member 3 on the frame body 2 side, respectively. Therefore, when both building frames 1 and 2 move relative to each other, the cover material 7
Since it is engaged with the building frame 1 and 2, it does not separate from the building frame 1 and 2, and airtightness can be maintained sufficiently.

In this case as well, the upper cover material 7A and the lower cover material 7
B and is connected to each other via a joint member 8. This joint member 8 also has an internal part 8a provided inside the upper cover material 7A and an external part 8 provided externally in the lower cover material 7B, similar to the joint member 8 described above.
b are integrally formed. Therefore, as in the above example, it is possible to effectively prevent rainwater from entering the expansion joint.

Note that the configuration of the expansion joint is not limited to that shown in the above-described example.

As explained in detail above, the joint device for the expansion joint according to this invention is such that a plurality of cover materials covering the gap are placed vertically through the joint member in the gap between the vertical surfaces of opposing building frames. and the upper part of each joint member is provided along the inner surface of the upper cover material among the upper and lower cover materials that are connected to each other,
The present invention is characterized in that the lower part of each of the joint members is provided along the outer surface of the lower cover material.

In this way, the upper part of the joint member is provided along the inner surface of the upper cover material to which it is connected, and the lower part is provided along the outer surface of the lower cover material, so that the upper and lower cover materials and the joint member are All gaps appearing externally in between are opened downward. That is, the gap between the lower end of the upper cover material and the upper part of the joint member and the gap between the upper end of the lower cover material and the lower end of the joint member both open downward. As a result, rainwater flows from the surface of the upper cover material to the surface of the joint member and further flows down the surface of the lower cover material, so that it does not infiltrate into the interior from the continuous portion.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional explanatory view showing a joint device in an expansion joint according to this invention, FIG. 2 is a reduced front view of the joint device,
3 is a sectional view taken along the line X-X in FIG. 2, FIG. 4 is a sectional explanatory view of another example of the expansion joint joint device according to this invention,
The figure is a perspective view of a conventional joint device. Code, A... Expansion joint,
DESCRIPTION OF SYMBOLS 1, 2... Building frame, 3... Support member, 4... Locking edge, 6... Spring locking metal fitting, 7... Cover material, 7
A...Top cover material, 7B...Bottom cover material, 8
...Joint member, 8a... Internal part, 8b...
External part, 20...Airtight material.

Claims (1)

[Scope of utility model registration request] A plurality of cover materials that cover the gap between the vertical surfaces of opposing building frames are vertically connected via joint members, and the upper and lower parts of the joint members are connected to each other in the upper and lower parts. A joint device for an expansion joint, characterized in that the joint member is provided along the inner surface of the upper cover material among the cover materials, and the lower part of each of the joint members is provided along the outer surface of the lower cover material.