JPH0233521Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention is a holding device for an expansion joint cover, and more specifically, an expansion joint cover that is installed over a building frame that is placed facing each other with a predetermined gap. - Relates to a holding device for an expansion joint cover, which holds the cover in a holder that is fastened to one of the building blocks at a predetermined interval.

Generally, this type of expansion joint cover is held by a holder fixed to one of the body parts. The reason for this is that opposing building frames are relatively displaced in different directions due to vibration, uneven settlement, etc., so this displacement is effectively absorbed and the expansion joint cover is held stably between the frames. This is to make it happen.

However, when the expansion joint cover is held on only one body in this way, the end of the cover on the other body side is attached to the other body by the holding force obtained when it is engaged with the holder. It just touches the surface. On the other hand, the body surface is not a perfect plane, but is usually a gently uneven surface, so even if the irregularities are small, there is a gap between the expansion joint cover and the body surface. It was easy for gaps to form. This gap not only deteriorates watertightness and airtightness, but also impairs the aesthetic appearance. Therefore, conventionally, in order to eliminate the above-mentioned gap, it has been necessary to perform complicated work such as installing a gap prevention member on-site.

The purpose of this invention is to solve the above-mentioned drawbacks and propose a holding device for expansion joint covers that can prevent gaps from opening and reduce on-site construction work, and is also highly responsive to changes in the structure. shall be.

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

In FIG. 1, numerals 1 and 2 indicate a predetermined gap S.
The frame of the building is shown. The end surfaces of the frames 1 and 2 are substantially flush, for example, floor to floor, wall to wall, or ceiling to ceiling. A holder 4 is placed on one building frame 1.
are fixed at regular intervals along the edge of the frame 1,
An expansion joint cover 3 is held in place by these holders 4. This holder 4 is preferably made of an elastic metal and is a short member formed by extrusion molding, bending, press working, etc. As shown in FIG. a fastening part 7 with a hole 6;
It is provided with a curved fitting groove part 9 extending from the fastening part 7 and having a fastening protrusion 10, and spring parts 11, 11 curved on the fastening part 7 side. There is a curved part 1 between the fitting groove part 7 and the fitting groove part 9.
2 is formed. The spring parts 11, 11 are bent into a curved shape from the rear end of the holder 4, and are provided on both sides of the fastening part 7. However, spring part 1
1. The shape and number of groove portions 9 and curved portions 12 are not limited to two as shown in the figure. The end of one side wall 9a of the curved fitting groove 9 is a free end that imparts elasticity to the frame 1, and the opening at the upper end is narrowed. The locking protrusion 10 is formed by bending inside the opening on the free end side of the fitting groove 9 so as to protrude obliquely downward, and is not limited to being provided on the side wall 9a, as shown in FIG. 3c. It may be provided on the other side wall 9b or on both side walls 9a and 9b. A gap 13 is formed between the curved portion 12, the frame 1, and the inner wall 11.

The holder 4 is formed in advance as shown in the dashed line a in FIG. The side wall 9b of the fitting groove portion 9 is opened and the side wall 9b of the fitting groove portion 9 is
strong contact with the side of the For this reason, the curved portion 1
Resilience acts on 2 to restore it to its original state, and the fitting groove 9 is firmly engaged. moreover,
As the opening angle of the curved portion 12 increases, the pressing force of the fitting groove portion 9 against the side wall 9a and the other side wall 9b also increases.

Next, reference numeral 3 denotes an expansion joint cover, which has a flat surface, has a fitting groove 15 for the airtight material 14 at both ends on the back side, and has a groove 15 for fitting the holder 4 in the middle part. Preferably, a locking edge 16 having a sawtooth locking protrusion 16a is provided in a protruding manner corresponding to the position of the projecting piece 10.

This expansion joint cover 3
The locking edge 16 is press-fitted into the fitting groove 9 of the holder 4, and the locking protrusion 16a is pushed into the fitting groove 9 of the holder 4 by the spring action of both side walls 9a, 9b of the fitting groove 9. It is attached to the stopper piece 10 and installed over the building frames 1 and 2. In this case, since the opening of the fitting groove 9 of the holder 4 is pushed wide by the locking edge 16 of the expansion joint cover 3, the side wall 9 tends to return to the frame 1 side due to elasticity. do. Therefore, the locking edge 1
6 is held in the fitting groove 9, and the locking protrusion 16a and the locking protrusion 10 are firmly locked. Note that the locking edge 16 of the expansion joint cover 3 and the fitting groove 9 are provided on the free end side of the holder 4 as appropriate.
A locking hook-shaped piece 21 of the member 20 that disengages from the locking protrusion 10 may be formed.

Next, a spring portion 11 is provided on the fastening portion 7 side of the holder 4.
is provided. Therefore, when the expansion joint cover 3 is attached, the end of the cover 3 on the body 1 side presses and bends the spring part 11, and the reaction force causes it to move away from the body 1. The spring is biased. Since the locking edge 16 of the expansion joint cover 3 is locked to the curved portion 9 of the holder 4, when the body 1 side of the cover 3 receives spring pressure in the direction of separating outward from the body 1, Due to the lever principle, the body 1 side of the cover 3 is strongly pressed against the end surface of the body 1. Also, at this time, the locking edge 16 of the cover 4
The locking protrusion 1 also receives a force that causes it to move outwardly from the body 1 due to the spring pressure of the spring portion 11.
6a and the locking protrusion 10 of the fitting groove 9 becomes even stronger, and even if the frames 1 and 2 move in different directions, the locking state of the fitting groove 9 and the locking edge 16 is maintained. is held sufficiently stably to prevent the edge of the cover 3 from separating from the frame 2 side. Therefore, the airtight materials 14, 14 provided at both ends of the expansion joint cover 3 are in uniform tight pressure contact with the end surfaces of the main bodies 1, 2, and the cover 3 and the main bodies 1, 2 are tightly pressed against each other.
This prevents gaps from opening, improving airtightness and watertightness, and preserving the aesthetics. In addition, even if the frames 1 and 2 change due to vibration, uneven settlement, etc.
Since the holder 4 is securely attached to the expansion joint cover 3, the cover 3
In response to the above-mentioned fluctuations, the gap S between the frames 1 and 2 can always be kept well sealed.

Note that if the locking protrusion 16a is formed into a sawtooth shape,
Adjust the locking protrusion 10 of the fitting groove 9 to the optimum locking protrusion 1.
6a, the locking position can be finely adjusted. Furthermore, the holder has a groove 9
It is preferable that the spring portion 11 has sufficient repulsion spring force.

Figure 2 shows a case where building frames 1 and 2 face each other with a predetermined gap S and form a predetermined angle, such as a floor and a wall, a ceiling and a wall, a wall and a wall, etc. A holder 4 shown in FIG. 3b is fixedly attached to the frame 1 side at a predetermined interval, and an expansion joint cover is attached to the holder 4, which is bent in accordance with the angle formed by the frames 1 and 2. 3, and the holder 4 differs in function from the one shown in FIG. 1, with the only difference being the fastening part 7 and the curved part 12, as the relative positions of the frames 1 and 2 have changed. Since they are the same, they will be indicated by the same reference numerals and the explanation will be omitted. The same applies to expansion joint cover 3.

Next, the shape of the holder for securing the expansion joint cover is not limited to that shown in FIGS. 1 and 2. For example, as a modification of the holder shown in FIG. 1, the locking protrusion 10 may be formed on the frame-side side wall 9b of the fitting groove 9, as shown in FIG. 3c described above. Further, the number and shape of the spring parts 11 are not particularly limited as long as they can apply the required spring pressure to the expansion joint cover. 11, 11 may be formed diagonally or in a zigzag shape on the rear end side of the holder 4, and only one piece 11 may be formed by cutting and bending. Of course, the spring parts 11, 11 can be molded separately from the holder main body 4a, and as shown in FIG. As shown in FIG. 5F, a long hole 6 may be provided on one side of the fastening portion 7, and a separate spring portion 11 may be fixed on the other side by welding, screwing, or the like. The same applies to the holder 4 shown in FIG. Moreover, the above-mentioned holder is not limited to a plate-shaped material, but may be formed by bending a wire rod.

As explained in detail above, the expansion joint cover according to the present invention is engaged with a holder fitting groove fixedly fixed at a predetermined interval to one of the building frames facing each other with a predetermined gap. The holder is attached to the holder, and its both ends are brought into contact with both of the body surfaces, but since a spring section is integrally or integrally formed on the fastening section side of the holder, this spring section allows for expansion.・Since one end of the joint cover receives spring pressure in the direction away from the one frame, the other end of the cover uses the engagement part between the locking edge and the fitting groove as a fulcrum through the airtight material. , is strongly pressed against the other body surface by lever action. Therefore, even if there are some irregularities on the surface of the structure, the pressure force and the elasticity of the airtight material prevent any gaps from forming between the expansion joint cover and the surface of the structure, ensuring watertightness and airtightness. It is maintained and there is no risk of spoiling the aesthetic appearance. Therefore, the work required to prevent irregularities on the structure surface at the construction site can be greatly reduced, and the work can be carried out simultaneously with the installation of the holder, improving work efficiency. Next, the expansion joint cover is held by locking its locking edge into the fitting groove of the holder, and the locking direction is the same as the direction of action of the spring section, so the locking edge described above is becomes even stronger due to spring pressure. Therefore, even if the two building blocks change due to vibrations, uneven settlement, etc., the gap between the building blocks can be kept well sealed at all times in response to this change.

[Brief explanation of the drawing]

1 and 2 are explanatory views of the expansion joint cover device according to the present invention in use, and FIG. 3 is a perspective view of another example of the holder. Codes 1, 2...Architectural frame, 4...Holder, 7
...Fixing portion, 9... Fitting groove portion, 10... Locking protrusion, 11... Spring portion, 12... Curved portion, 16...
Locking edge.

Claims (1)

[Scope of utility model registration request] An expansion holder that is fixedly fixed at a predetermined interval to one of the building frames facing each other with a predetermined gap therebetween, and an expansion plate that is installed over both of the building frames.
In the expansion joint cover holding device for securing the joint cover, the holder includes a fastening part fixed to the body, a fitting groove extending from the fastening part, and a side of the fastening part. a spring portion provided on the expansion joint cover for separating the expansion joint cover from the frame on the fixed side of the holder;
An expansion joint characterized in that the joint cover is provided with an airtight material that comes into contact with both of the body surfaces at both ends, and a locking edge that is fitted and locked into the fitting groove of the holder on the back side.・Cover retaining device.