JPH036726Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a cover material for an expansion joint.

In expansion joints that are generally installed in the gap between opposing building frames, the covering material that covers the gap between the building floors is not only strong but also has a slippery surface because people walk on it. A stop is required. Therefore, since extruded aluminum materials have a drawback in strength, conventional cover materials are often made by bending stainless steel plate materials into corrugated shapes or the like. However, although stainless steel has high strength, the uneven corners on the surface to prevent slipping are bent, resulting in a rounded finish. Therefore, sufficient anti-slip function could not be obtained and it was dangerous.

The object of this invention is to solve the above-mentioned drawbacks and to propose a cover material for an expansion joint that has particularly excellent strength and anti-slip effect.

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

In FIG. 1, reference numeral A indicates an expansion joint. This expansion joint A is installed in the gap S between the floors 1a and 2a of the opposing building frames 1 and 2. That is, the expansion joint A connects long support members 3, 3 fixed to the ends of the building frames 1, 2 along the gap S, and a fixed interval in the longitudinal direction of the support members 3, 3. It is composed of a spring locking metal fitting 4 that is locked to the spring locking metal fitting 4, and a cover 5 that is locked to the spring locking metal fitting 4. A locking edge 6 having a locking protrusion 6a at the tip and a water stop plate fitting groove 7 are formed at the end of the support member 3 on the side of the gap S, and a pair of locking protrusions 8a, at the other end. 8b and a fitting groove 9 for attaching a stretchable elastic material are formed. Engagement grooves 10a and 10b of a fixture 10 are engaged with the engagement protrusions 8a and 8b of the support member 3 at regular intervals, and the fixture 10 is further embedded in the building frame 1 or 2. Differential line 1
It is fixed at 1. In this way, the support member 3 is fixed to the differential reinforcement 11 via the fixing fitting 10. Next, the water stop plates 12 are fitted into the water stop plate fitting grooves 7 of the supporting members 3, 3, and the cover material 5 is attached to the locking edges 6, 6 via the spring locking fittings 4. There is.
A cover material 5 is attached via a spring locking fitting 4. The spring locking fitting 4 is made of a metal spring material formed into a W shape, and has locking receivers 13 and 14, 14 formed at the center and both ends, respectively. Support members 3, 3
The locking protrusions 6a, 6a of the locking edge 6 are locked, and the locking receiving part 13 at the center is locked to the cover material 5.

The cover material 5 is made by overlapping a back plate 15 made of extruded material such as aluminum and a front plate 16 made of stainless steel.A locking edge 17 is formed on the back side of the center of the back plate 15, and the tip of this locking edge 17 is formed on the back side of the center of the back plate 15. A locking protrusion 17a is formed therein. The cover material 5 has this locking protrusion 17
The locking receivers 13 of a plurality of spring locking fittings 4 are locked at intervals in a, and the gap S between the two main bodies 1 and 2 is
It is attached to the support members 3, 3 by covering the upper part and pressing and engaging the locking receivers 14, 14 at both ends of the spring locking metal fittings 4 against the locking edges 6, 6 of the support members 3, 3. It will be done.

Note that the top plate 16 is made of an extruded material, and the locking edge 1
7 can be easily molded, the top plate 16
Attachment by locking the locking fitting 4 to the locking fitting 4 can be easily performed.

A stretchable elastic member 1 is provided between both ends of the cover material 5 attached as described above and the floor surfaces 1a and 2a.
8 is installed.

With the above configuration, building frames 1 and 2 will settle unevenly,
Even if there is a relative change due to temperature differences, etc., the cover material 5
is always stably held in a drawn state toward the frames 1 and 2 by the spring locking fittings 4.

Further, since the top plate 16 of the cover material 5 is made of stainless steel, its overall strength is high, and there is no risk of deformation even if a person walks on it.

Next, on the outer surface of the top plate 16 of the cover material 5, anti-slip uneven portions 20 are formed. The uneven portion 20 is formed by etching.

As shown in FIG. 2, there are two main types of etching processing: a direct method and an indirect method.The direct method involves cleaning the top plate 16 of the cover material 5, applying a photosensitive material to the surface of the top plate 16, and drying it. In addition, a striped pattern is printed, developed, the surface is washed with water, further burned, and etched with an etching solution, then washed with water, neutralized, and dried, and then the photosensitive material is peeled off. It is done. On the other hand, in the indirect method, the top plate 1 of the cover material 5
6 is cleaned, a striped pattern is screen printed on its surface, dried, etched, washed with water, neutralized, dried, and the photosensitive material is peeled off.

In either method, as shown in FIG. 3, the portion corroded by the etching solution is depressed, and an uneven portion 20 is formed on the surface of the top plate 16.
Since the uneven portion 20 resulting from such etching treatment is formed by corrosion, the corner portion 20a thereof is formed to be sufficiently sharp. Therefore, even if you walk on it, you will not slip and fall, and the anti-slip effect is sufficient.

Note that the etching process may be performed partially.

Next, Figure 4 shows an expansion joint with another configuration, where the building frames 1 and 2 are facing each other.
It is covered in the gap S between the floor 1a and the wall 2a. This expansion joint A also has long support members 3, 3 fixed to the ends of the building frames 1, 2 along the gap S, and a fixed interval in the longitudinal direction of the support members 3, 3. It is composed of a spring locking metal fitting 4 that is locked to the spring locking metal fitting 4, and a cover 5 that is locked to the spring locking metal fitting 4.

Engagement grooves 10a, 10b of the fixing metal fitting 10 are provided at regular intervals in the engagement protrusions 8a, 8b of one support member 3.
are engaged, and furthermore, this fixing metal fitting 10 is attached to the building frame 1.
It is fixed to the differential reinforcing bars 11 buried in the. The support member 3 on the building frame 2 side is attached to the wall frame 2b with bolts.
A locking edge 6 corresponding to the locking edge 6 of the support member 3 is formed at one end thereof, and an engaging edge 21 is formed at the other end.

The cover material 5 is made by polymerizing and fixing a back plate 15 made of extruded material such as aluminum and a stainless steel front plate 16 that bends depending on the relative shape of the building frames 1 and 2. The locking protrusion 17
A locking edge 17 having a diameter of 1.a is formed, and a bent portion 22 is formed at one end. Further, the bent side end of the top plate 16 is bent into a U-shape, and this bent edge 2
3 is fitted with an airtight material 24. Cover material 5
The locking receivers 13 of a plurality of spring locking fittings 4 are locked to the locking protrusions 17a at intervals to cover the gap S of both bodies 1 and 2, and the spring locking The metal fittings 4 are attached to the supporting members 3, 3 by pressing and engaging the locking receivers 14, 14 at both ends against the locking edges 6, 6 of the supporting members 3, 3. At this time, the bent edge 23 and bent portion 22 of the cover material 5 are arranged so as to be able to engage with the engagement edge 21 and the locking edge 6 of the support member 3, respectively. Therefore, even if the building frames 1 and 2 change relative to each other,
The cover material 5 does not separate from the frame 2 and can maintain good airtightness.

Next, on the horizontal portion of the outer surface of the top plate 16 of the cover material 5, an uneven portion 20 for preventing slipping is formed.
The uneven portion 20 is formed by etching. This etching process is also performed in the same manner as in the previous example.

Therefore, the cover material 5 in this case also has excellent strength and anti-slip effect, as in the example shown in FIG.

Note that the cover material may be made only of stainless steel as long as it is used in an expansion joint installed between floors or floors and walls of opposing building frames. Further, the case of a polymerized structure of stainless steel and aluminum extruded materials is not limited to the above-mentioned example. Furthermore, the structure of the expansion joint is not limited to the one shown above. For example, a similar spring locking fitting can also be used to fix a plate-shaped holder to it, and then fix the cover material to this plate-shaped holder. There are some configurations in which the cover material is slidably attached to a support member fixed to both building frames without using spring locking fittings, and the cover material is slidably attached to support members fixed to both building frames to accommodate changes in the building frames. It can also be applied to expansion joints.

As explained in detail above, the expansion joint cover material according to this invention is a cover material that covers the gap in the expansion joint that is installed in the gap between the floors of opposing building frames. A stainless steel top plate is formed by polymerizing a back plate made of an extruded material such as aluminum, and an anti-slip uneven portion is formed on the outer surface of the top plate by etching. be. Therefore, since the cover material is made of stainless steel, it has sufficient strength even when walking on it, and since the uneven portion has an excellent anti-slip function, there is no risk of falling while walking, so it is safe. Moreover, since the back plate is made of extruded material such as aluminum, it is easy to process, and the parts to be attached to both building frames can be easily molded.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view showing a cover material for an expansion joint according to this invention, FIG. 2 is an explanatory diagram of the etching treatment process, and FIG. 3 is an enlarged cross-sectional view of the irregularities on the outer surface of the cover material. , FIG. 4 is a sectional view of another example of the expansion joint cover material. Code, A... Expansion joint,
DESCRIPTION OF SYMBOLS 1, 2... Building frame, 3... Supporting member, 4... Spring locking fitting, 5... Covering material, 6... Locking edge, 1
5... Back plate, 16... Front plate, 20... Uneven portion.

Claims (1)

[Scope of utility model registration request] In an expansion joint that covers the gap between the floors of opposing building frames with a cover material, the cover material that covers the gap is made by polymerizing a stainless steel top plate and a back plate made of an extruded material such as aluminum. A cover material for an expansion joint, characterized in that the outer surface of the top plate is formed with anti-slip unevenness by etching.