JP2002081143A - Expansion joint for floor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an expansion joint having abrasion resistance, an excellent slip prevention and an ability to move smoothly in response to a tremor between floor framing bodies due to earthquake or the like. SOLUTION: In an expansion joint A for floors covering a gap A between floor framing bodies 1 and 1 facing each other with a certain clearance, this expansion joint for floor is formed with a cover member 5 erected in a sliding manner between fixing members 4 and 4 fixed to the gap side of each floor framing body and finish support members 11 and 11 covering both the side portions of the cover members and being supported by the fixing members, and a thermally sprayed film layer 9 is provided on the surface of at least one of the members of the cover member and the finish support member.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an expansion joint for floors which covers a gap between floor structures of buildings facing each other at regular intervals.

[0002]

2. Description of the Related Art Generally, a floor expansion joint of this type is provided with a pair of ground rails fixed to floors on the joint side of right and left buildings, for example, as disclosed in Japanese Patent Laid-Open No. 10-68174. A joint plate for covering the joint portion whose both sides are supported by the support piece on the joint portion side of the base rail is supported, and the joint plate slidably covers both side portions of the joint plate. And a cover plate removably attached to the joint plate. A plurality of recesses are formed in the upper surface of the joint plate, and the upper surface is the same as or slightly larger than the upper surface of the joint plate. A configuration in which a low anti-slip plate is fixed to the vehicle is known.

[0003]

However, in the above-mentioned structure, a plurality of recesses are provided on the upper surface of the joint plate, and the anti-slip plate is fixed in the recesses. When it becomes complicated, there is a possibility that all or part of the anti-slip plate may be peeled off for a long period of time, and when the peeled one protrudes from the concave portion and gets caught, when the floor structure of the building swings due to an earthquake or the like, Correspondingly, there has been a problem that the joint plate cannot move smoothly.

[0004] The present invention solves the above-mentioned problems, and in particular, has abrasion resistance and is excellent in slip prevention, and can smoothly move in response to rocking between floor frames due to an earthquake or the like. The task is to propose a floor expansion joint that can be used.

[0005]

As a means for solving the above-mentioned problems, an expansion joint for floors according to the present invention is a floor expansion joint for covering a gap between floor structures of opposing buildings at regular intervals. In the joint, the floor expansion joint is provided on a cover member slidably mounted between fixing members fixed to the gap sides of the floor frames, and covers both side portions of the cover member and is attached to the fixing member. A spray coating layer is provided on a surface of at least one of the cover member and the decorative support member.

The cover member and the decorative support member are made of stainless steel, and after at least one of the members is subjected to shot blasting or grit blasting, a sprayed coating layer mainly composed of alumina ceramics is formed. It may be formed.

Further, the cover member and the decorative support member are aluminum plates or extruded materials, and the surface of at least one of the members is sprayed mainly containing at least one of aluminum, aluminum alloy and alumina ceramics. A coating layer may be formed, and an anodic oxidation sprayed coating layer may be further formed on the surface of the sprayed coating layer.

Further, the thermal spray coating layer mainly composed of the alumina-based ceramic is composed of 87% to 96% by weight of the ceramic + 4% to 13% of the titanium.
It preferably contains 92% to 96% by weight of the ceramic and 4% to 8% of the titanium by weight.

The surface of at least one of the cover member and the decorative supporting member may be subjected to shot blasting or grit blasting, and a thermal spray coating layer may be formed on the surface by plasma spraying. .

It is preferable that the shot blast is applied with alumina grit # 16 to # 46.

[0011]

Embodiments of the present invention will be described below with reference to the drawings.

In FIG. 1, reference numerals 1 and 1 denote floor structures of a building, and the floor structures 1 and 1 are opposed to each other at a predetermined interval, and a floor expansion joint A is disposed in a gap S therebetween. Have been.

Support members 3, 3 are fixed to the upper portions of the concrete floor frames 1, 1 via anchor bolts 2, 2, and the support members 3, 3 are elongated on the upper surface side. Fixing members 4 and 4 formed of an aluminum mold are provided. The U-shaped locking members 4a, 4a provided at the distal ends of the fixing members 4, 4 support the supporting members 3, 3, respectively.
Are fixed to the front ends 3a, 3a on the side of the gap S, and the rear end is
0, it is fixed to the support members 3, 3. Concretes 6, 6 are cast in gaps formed at the lower and rear ends of the floor frames 1, 1 and the support members 3, 3.

The support members 3, 3 and the fixing members 4, 4 are not limited to aluminum, but may be formed of a metal such as stainless steel. Further, the fixing member 4 may be bolted to the floor frame 1 except for the support member 3.

Next, a cover member 5 is provided between the fixing members 4 and 4.
The cover member 5 is formed by overlapping a thin stainless steel plate 5b formed of a long mold with the same shape on the upper surface of an aluminum plate 5a formed of a long mold. The fixing members 4 and 4 are fixedly formed by fixing means 7 and 7 such as rivets, screws, and caulking, and are provided integrally with the ends of the fixing members 4 and 4 integrally with each other. Engagement piece 8 fitted,
8 is engaged.

The cover member 5 and the decorative support member 11 are not limited to the superposition of the aluminum plate 5a and the stainless steel plate 5b. For example, the cover member 5 and the decorative support material 11 may be formed of one aluminum plate, its extruded material, a brass plate or a stainless steel plate. You may.

Next, on both sides of the cover member 5, makeup support members 11 having a thickness of about 1 to 5 mm which cover both sides of the cover member 5 are provided. The members 11, 11 are formed of a long, stainless steel strip-shaped plate, and one side thereof is provided with screws, rivets on engaging portions 12, 12, which are provided continuously at the rear ends of the fixing members 4, 4. And the like.

The decorative supporting members 11, 11 are not limited to stainless steel, but may be formed of, for example, an aluminum plate, an extruded aluminum material, brass, or the like.

Next, cement,
A thermal spray coating layer 9 is formed by thermal spraying a thermal spray material mainly composed of a ceramic material such as glass. When this thermal spray coating layer 9 is formed, the surface of the cover member 5, for example, the surface of the upper plate 5 b such as a thin stainless steel plate or brass disposed on the composite material is subjected to shot blasting or grit blasting to obtain a rough surface. It is preferable to apply a thermal spraying process on it. The thermal spray coating layer 9 is preferably provided on the entire surface, but may be provided in a band-like or spot-like, polka-dot, striped, or the like manner in the longitudinal direction or the width direction of the cover member at intervals.

The thermal spray coating layer 9 is not limited to this, and a thermal spray coating layer mainly composed of at least one of aluminum, aluminum alloy and alumina ceramics is formed on the surface of the cover member 5, and this thermal spray coating is formed. An anodized film layer may be further formed on the surface of the cover member including the cover member, and may be appropriately selected and processed.

Alternatively, after a shot blast or a grit blast is applied to the surface of the cover member 5, a thermal spray coating layer may be formed on the surface by plasma spraying. When the shot blast is performed as described above, it is preferable that the shot blast is performed using alumina grit # 16 to # 46. Further, the thermal spray coating layer 9 may be provided as needed.

In the above, when a thermal spray coating layer mainly composed of, for example, alumina ceramics is formed on the surface of the cover member 5, ceramics 87% to 9% are used.
6% by weight + 4% to 13% by weight of titanium, preferably 92% to 9% of ceramics
Those containing 6% by weight + 4% to 8% by weight of titanium are preferred.

Next, between the floor frameworks 1 and 1 at the end of the fixing member 5, water-stop plates 16 made of synthetic resin, synthetic rubber or the like are provided, and provided at both ends of the water-stop plates 16. Fitting part 1
Reference numeral 7 is fitted in a water blocking plate fitting groove 18 provided in the fixing members 4 and 4.

As described above, according to the floor expansion joint A, since it is disposed in the gap S between the concrete floor frames 1, 1 via the fixing members 4, 4, the floor frame is caused by vibration or the like. When 1, 1 swings, it can move smoothly correspondingly. Also, the cover
Since the thermal spray coating layer 9 is provided on the surface of the member 5, slippage during walking can be prevented, and the wear resistance is excellent even for long-term use.

Next, FIG. 2 shows another embodiment of the floor expansion joint A. In this other embodiment, the floor frames 1, 1a of the concrete of the building constitute the corners. In this case, the fixing member 4 on the other wall skeleton 1a side is formed to be bent in accordance with the state of the corner. Further, one side portion of the cover member 5 is pressed against the fixing member 4, and a pressing piece 22 in which the decorative supporting member 21 is bent above the fixing member 4 is fixed by screws. 1 denote the same parts, and a description thereof will be omitted.

The above-mentioned floor expansion joint A
In this case, the same effect as in FIG. 1 can be obtained.

FIG. 3 shows another embodiment of the floor expansion joint A. In this embodiment, the surface of the cover member 4 does not have a thermal spray coating layer, but the surface of the decorative member 11 does not. A thermal spray coating layer 14 is provided. In this embodiment, the cover member 4 and the decorative support member 11 are made of a long aluminum plate, an extruded aluminum material, stainless steel, brass, or the like. 5 is the surface 5c
Are formed in a wavy shape over the entire length. 1 denote the same parts, and a description thereof will be omitted.

Next, on the surfaces of the decorative supporting members 11, 11, a thermal spray coating layer 14 formed by thermal spraying a thermal spray material mainly composed of a ceramic material such as cement or glass is formed in the same manner as the cover member of FIG. I have. When the thermal spray coating layer 14 is formed, the surfaces of the decorative supporting members 11 and 11 are subjected to shot blasting or grit blasting to form a rough surface,
It is preferable to perform a thermal spraying process thereon.

The thermal spray coating layer 14 is not limited to this. For example, a thermal spray coating layer mainly containing at least one of aluminum, aluminum alloy and alumina ceramics is formed on the surfaces of the decorative supporting members 11 and 11. It is preferable to further form an anodized film layer on the surface including the sprayed film layer. Further, after the surfaces of the decorative supporting members 11 and 11 are subjected to shot blasting or grit blasting, a thermal spray coating layer may be formed on the surfaces by plasma spraying. When performing the shot blasting, it is preferable to use the alumina grit # 16 to # 46. Further, the thermal spray coating layer 14 may be provided as needed.

In the above, when a sprayed coating layer mainly composed of, for example, alumina ceramics is formed on the surfaces of the decorative supporting members 11, 11, the ceramics are 87% to 96% by weight + 4 parts of titanium. Cent to thirteen
Preferably, the ceramic contains 92% to 96% by weight of the ceramic and 4% to 8% of the titanium by weight.

The above-mentioned floor expansion joint A
According to this, since the surface of the cover member 5 is formed in a wavy shape, slippage during walking can be prevented, and the wear resistance is excellent even for long-term use. Also, when the floor frames 1 and 1 swing due to vibration or the like,
It can move smoothly correspondingly.

Further, since the sprayed coating layer 14 is provided on the surfaces of the decorative supporting members 11, 11, it is possible to prevent slippage during walking and to have abrasion resistance even when used for a long time. Is excellent.

Next, FIG. 4 shows another embodiment of the floor expansion joint A. In this other embodiment, similarly to FIG. 2, the floor frames 1, 1a constitute the corners. In the same manner as the decorative support member 11 shown in FIG. 3, a thermal spray coating layer 14 is formed at an appropriate position on the surface. In this case, the fixing member 4 on the other wall frame 1a side is formed to be bent in accordance with the state of the corner. Further, the fixing member 4
A pressing piece 21 for pressing one side of the cover member 5 which has been subjected to the uneven processing is fixed by a screw 22. 1 to 3 denote the same parts, and a description thereof will be omitted.

The above-mentioned floor expansion joint A
In this case, the same effect as in FIG. 3 can be obtained.

FIG. 5 shows an example in which the thermal spray coating layer 14 is formed in a belt shape with a suitable width on the surface in the longitudinal direction of the decorative supporting member 11, and the same applies to the thermal spray coating layer 9 of the cover member 4. Also,
As described above, the pattern of the thermal spray coating layer is not limited to the belt shape.
It may be striped, spotted, polka dot, or the like.

Although the above-described example is an example in which the thermal spray coating layer is applied to either the cover member or the decorative support member, it goes without saying that the thermal spray coating layer may be formed on both.

[0037]

According to the first aspect of the present invention, the floor expansion joint has a cover member slidably mounted between fixing members fixed to the gap side of each floor frame, and a cover member of the cover member. A cosmetic spraying layer is provided on the surface of at least one of the cover member and the cosmetic support member, the thermal spray coating layer being formed by a decorative support member that covers both sides and is supported by the fixing member. When the floor frame swings due to the vibration, it can move smoothly correspondingly. Further, it is possible to prevent slippage when a person walks on the cover member or the makeup supporting member. Further, the thermal spray coating layer has excellent wear resistance.

According to the second aspect of the present invention, the cover member and the decorative support member are made of stainless steel, and after the surface of at least one of the members is shot-blasted or grit-blasted, the alumina-based ceramic is mainly used. Since the thermal sprayed coating layer is formed, the thermal sprayed coating layer has good adhesion and durability, is excellent in abrasion resistance, and can prevent slippage.

According to the third aspect of the present invention, the cover member and the decorative support member are aluminum plates or extruded materials, and at least one of aluminum, an aluminum alloy, and an alumina-based ceramic is formed on the surface of at least one of the members. The main component is a sprayed coating layer, and the surface of the one member including the sprayed coating layer is further formed with an anodic oxidation coating layer. Excellent adhesion and durability, and abrasion resistance combined with an oxidized film is obtained.
Slip prevention without discomfort is obtained.

According to the fourth aspect of the present invention, the sprayed coating layer containing alumina-based ceramic as a main component is made of ceramics 8.
7% to 96% weight + titanium 4% to 13% weight, preferably 9% ceramic
2% to 96% weight + Titanium 4% to 8% higher adhesion and durability are obtained, and even if abrasion occurs in the sprayed layer, the coverage depends on the presence or absence of abrasion. Alternatively, it is possible to obtain a material that does not cause a sense of incompatibility with the decorative supporting member or a finished appearance.

According to the fifth aspect of the present invention, after the surface of at least one of the cover member and the decorative support member is subjected to shot blasting or grit blasting, a thermal spray coating layer is formed on the surface by plasma spraying. As a result, a sharper uneven blast surface enhances the bite, and a thermal sprayed coating layer having high adhesion and durability can be obtained, and slip can be prevented.

According to the sixth aspect of the present invention, since the shot blasting is performed with the alumina grit # 16 to # 46, the improved adhesion of the sprayed coating layer is improved and the durability is improved. Excellent things can be obtained.

[Brief description of the drawings]

FIG. 1 is a sectional view of an expansion joint for floors according to the present invention.

FIG. 2 is a sectional view of another embodiment of a floor expansion joint.

FIG. 3 is a sectional view of still another embodiment of the floor expansion joint.

FIG. 4 is a sectional view of still another embodiment of the floor expansion joint.

FIG. 5 is a plan view of a makeup supporting member.

[Explanation of symbols]

 A floor expansion joint 1, 1a floor frame 4 fixing member 5 cover member 9, 14 sprayed coating layer 11 makeup support member

Claims (6)

[Claims] 1. A floor expansion joint for covering a gap between floor structures of buildings facing each other at a predetermined interval, wherein the floor expansion joint is provided between fixing members fixed to the gap side of each floor structure. At least one of the cover member and the makeup support member is formed by a cover member slidably mounted and a makeup support member covering both side portions of the cover member and supported by the fixing member. An expansion joint for floors, characterized in that a thermal spray coating layer is provided on the surface of the floor. 2. A method according to claim 1, wherein the cover member and the decorative support member are made of stainless steel, and after at least one member is subjected to shot blasting or grit blasting, a sprayed coating layer mainly composed of alumina ceramics is formed. The floor expansion joint according to claim 1 formed. 3. The thermal spraying wherein the cover member and the decorative supporting member are aluminum plates or extruded materials, and at least one of aluminum, aluminum alloy or alumina-based ceramics is formed on the surface of at least one of the members. The floor expansion joint according to claim 1, wherein a coating layer is formed, and an anodic oxidation coating layer is further formed on the surface of the one member including the thermal spray coating layer. 4. The thermal spray coating layer containing alumina-based ceramic as a main component has a ceramic content of 87% to 96%.
Percent weight + titanium 4% to 13% weight, preferably ceramic 92% to 96%
4. The floor expansion joint according to claim 2, wherein the joint contains 4% to 8% by weight of titanium. 5. A spray coating layer is formed by plasma spraying on a surface of at least one of the cover member and the decorative support member after the surface is subjected to shot blasting or grit blasting. Expansion joint for floor. 6. The floor expansion joint according to claim 2, wherein the shot blast is performed with alumina grit # 16 to # 46.