JPH0247687Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention is an extractor with a structure that closes off the walls of adjacent buildings and absorbs mutual displacement between the walls. This invention relates to a device for covering the edge of a pansion joint.

(Prior Art) In general, gaps are formed in walls on the roof of a building at appropriate intervals in consideration of expansion and contraction of the wall, vibrations due to earthquakes, and deformation of the building due to uneven settlement. An expansion joint with a structure capable of absorbing mutual displacement between the opposing walls is installed in this gap.

In other words, the expansion joint is
It is installed in a twisted state between opposing walls, and the gap is closed by a joint material and an upper cover material that move freely according to the displacement of each wall, and the walls are connected to each other. ing.

Further, an edge cover material that closes the edge portion is attached to the edge portion (end portion) of the cover material that is open at the side of the gap, but in the past, the edge cover material is directly welded to the cover material. Since the edges of the upper cover material were fixed to the ends of the upper cover material, the edge cover material was attached to the ends of the upper cover material by screws, etc., so that the edge cover material could prevent the displacement of the upper cover material due to the movement of the wall. As a result of trying to prevent
There was a problem that the upper cover material and the edge cover material were damaged.

(Purpose of the invention) This invention was made by focusing on the conventional problems as described above. To provide an edge cover device that prevents damage to the entire cover by configuring the edge cover material to move according to the displacement of the cover material itself when installing the edge cover material at the edge portion of a joint cover material. The purpose is to

(Structure of the invention) The structure of the edge cover device of the expansion joint according to this invention is to close the spaces between the frames such as adjacent walls at appropriate intervals, and to close the edges opened on the sides between the frames. The cutout part of the edge cover material is slidably fitted inside the joint cover material having the cutout part, the cutout part being provided protruding from a plate-shaped edge closing part that faces the body side and closes the edge part. The other end of an elastic body such as a spring, which is inserted between the frame members and held at one end, is connected to the edge closing portion to constantly draw the edge cover material toward the joint cover material.

(Example) This invention will be explained below based on the drawings.

FIGS. 1 to 5 are diagrams illustrating an embodiment of this invention.

That is, expansion joint 1 is
As shown in FIG. 1, they are installed above walls (frameworks) 2, 2 with appropriate intervals so as to close the gap from above.

The upper surfaces of the walls 2, 2 are provided with base portions 3a, 3a having a flow gradient, rising portions 3b, 3b connected to upper ends of the base portions 3a, 3a, and base portions 3a, 3a. A hanging part 3 connected to the lower end of the
Draining materials 3, 3 having raised portions 3b, 3c are provided with the rising portions 3b, 3b facing each other.

Further, the draining materials 3, 3 have base portions 3a, 3.
On the upper back side of a and the back side of the hanging parts 3c, 3c,
Locking protrusions 3d, 3d for fixing are formed,
As shown by the imaginary lines in FIG.
By engaging d and 3d, it is fixed to the wall bodies 2 and 2 side.

The joint cover material 6 has a substantially U-shaped cross section with a downward opening, and is installed astride the draining materials 3, 3 so as to close the gap between the walls 2, 2. A pair of upper and lower joint plates 7 and 8 are used.

The upper joint plate 7 has downwardly bent leg pieces 7c, 7c on both sides of a base 7b with a screw mounting recess 7a approximately in the center. The plate-shaped plate facing the base 7b is also provided with a screw mounting recess 8a approximately in the center. The joint plates 7 and 8 also have screws 9 passed through the screw mounting recesses 7a of the upper joint plate 7 from above, and screws passed through the screw mounting recesses 8a of the lower joint plate 8 from below. By screwing each of the screw shaft parts of 10 into each end of the coil spring 11, they are connected in a state where they are attracted to each other, and can be elastically separated against the tension of the coil spring 11. The upper joint plate 7 is placed in a state where it straddles both draining members 3, 3, and the back side of the upper joint plate 7 is brought into contact with the upper end of the rising portions 3b, 3b, and the lower joint plate 8 is
By intervening under the base portions 3a, 3a, they are fastened and held to both draining members 3, 3.

Note that the joint plates 7 and 8 are attached at positions where they do not interfere with the fixing fittings 5 and 5.

The joint cover material 6 has tight material fitting grooves 6a, 6a formed to protrude inwardly at the lower ends of both sides thereof, and the lower ends of the leg pieces 7c, 7c of the upper joint plate 7. It is attached by engaging with the upper side of the fitting grooves 6a, 6a.

Note that the tight material fitting grooves 6a, 6a have the following:
Tight material 1 that comes into contact with the upper surface of the base parts 7a, 7a
2 and 12 are fitted, and the joint cover material 6
Prevents rainwater from entering inside.

Further, in the figure, 13 is a water stop plate fixed on both sides to the fixing fittings 5, 5, and 14 is a drain port with a backflow prevention valve installed between the hanging parts 3c, 3c and the walls 2, 2. In the unlikely event that rainwater or the like infiltrates through the joints of the joint cover material 6, etc., from flowing between the walls 2, 2, the water stop plate 13 can be prevented, and the water can be discharged to the outside from the drain port 14. ing.

In the expansion joint 1 having the above configuration, the edge cover material 20 that closes the edge portion (end) 6b of the joint cover material 6 prevents the infiltration of rainwater, etc., as shown in FIG. A draining part 21 is formed with a large number of fins 21a and is slidably fitted along the inside of the joint cover material 6, and a plate-shaped part 21 that faces the walls 2 and 2 and closes the small opening 6b. The edge closing portion 22 is formed with folded portions 22b and 22c bent toward the wall at the portion facing the walls 2, 2, that is, at the lower half edge. .

Furthermore, caps 23, 23 are fixed to the upper portions of the side surfaces of the walls 2, 2, respectively, and are connected at a substantially right angle to the draining materials 3, 3.
3, 23 have hanging portions 23a, 23a facing the side surfaces of the walls 2, 2 and spaced apart from the side surfaces.

Furthermore, a locking metal fitting 24 is used to attach the edge cover material 20 to the joint cover material 6.

The locking fitting 24 is made by bending a substantially central portion of a long plate material into a trapezoidal cross section, and forming a screw insertion hole 24a in the central portion. , a screw 25 passed through the screw insertion hole 24a from the top side of the trapezoid of the locking fitting 24, and a screw 26 passed from the front side into the screw insertion hole 22a formed in the edge closing portion 22. The shaft portions are screwed into each end of a coil spring 27 (elastic body) to connect them via the coil spring 27.

In order to attach the edge cover material 20 with the locking fittings 24 connected via the coil spring 27 to the joint cover material 6, as shown in FIG. 3 and FIG. It is slidably inserted into the inside of the joint cover material 6 from the small opening 6b, and both ends 24b, 24b of the locking metal fitting 24 are inserted inside the respective hanging parts 23a, 23a of the caps 23, 23. to lock. In this locked state, the size of the coil spring 27 is set to be slightly tensed, so the edge cover material 20 is held in a state drawn toward the joint cover material 6 by the repulsive force of the coil spring 27. There is.

Next, the edge cover material 2 configured as described above is
The effect of 0 will be explained.

First, when a displacement occurs between the walls 2, 2, the joint cover material 6 is biased and connected to the joint plates 7, 8 (see FIG. 1) in the direction of approaching each other via the coil spring 11. Since it is attached via the wall body 2, it can be freely moved according to the displacement of each wall body 2, and absorbs the displacement of the other wall body 2 with respect to the one wall body 2.

In addition, the edge cover material 20 is also attached to the locking metal fittings 24 that are locked to the caps 23, 23 via the coil spring 27 in a tensioned state.
As shown in the figure, a displacement occurs between the walls 2, 2,
When the cap 23 of one wall 2 and the edge portion 6b of the joint cover material 6 that follows the movement of the wall 2 move away from the back surface of the edge closing portion 22, or when the hanging portion of the cap 23 on one side Even when pushed out by the locking metal fitting 23a, the locking metal fitting 24
The end portion 24b of the edge portion 20 is only pushed by the moved hanging portion 23a and tensilely deforms the coil spring 27, and the edge cover material 20, although its drainage portion 21 is slightly exposed from the joint cover material 6, The end of the insert cover material 6 is maintained in a closed state. In this way, even if the edge portion 6b of the joint cover material 6 and the edge closing portion 22 are separated, the drain portion 21 fitted along the inside of the joint cover material 6 is provided, so that the edge portion 6b is never left open.

In addition, if the displacement between the two walls 2, 2 is due to temporary vibration, etc., the edge cover material 20 is removed at the same time as the displacement of the walls 2,
The blockage of the mouth portion 6 caused by this also returns to its original state (the state shown in FIG. 4).

(Effects of the invention) As explained above, according to the expansion joint edge cover device of this invention,
Inside a joint cover material, which has an opening opening on the side between the skeletons and which closes the spaces between the frames such as adjacent walls at appropriate intervals, is placed the joint cover material which faces the skeleton side and closes the opening. The drain portion of the edge cover material is slidably inserted into the edge cover material, and the other end of an elastic body such as a spring, which is held at one end inside the body, is inserted into the edge cover material, and the other end of the elastic body, such as a spring, is held inside the frame. Since the structure is such that the edge cover material is always drawn toward the joint cover material by being connected to the closing portion, the edge cover material is not in a fixed state, but moves as the frame moves. Since it is possible to maintain the closed state of the edge part while following the displacement, there is no damage to the area near the edge part of the joint cover material and the edge cover material, and furthermore, it is possible to maintain the closed state of the edge part while following the displacement. The inserted drain part has the effect of preventing rainwater etc. from entering the inside of the cover even after displacement occurs.

[Brief explanation of drawings]

Figure 1 is a cross-sectional view illustrating the structure of an expansion joint installed on opposing walls, Figure 2 is a perspective view illustrating how to attach the edge cover material according to this invention, and Figure 3 is the edge cover material. FIG. 4 is a cross-sectional view illustrating the state after installation; FIG.
The figure is an explanatory plan view illustrating the state of the edge cover material when displacement occurs between the walls. 2... Wall body (framework), 6... Joint cover material, 6b... Edge portion, 20... Edge cover material, 2
7...Coil spring (elastic body).

Claims (1)

[Scope of utility model registration request] Inside a joint cover material, which has an opening opening on the side between the skeletons and which closes the spaces between the skeletons such as adjacent walls at appropriate intervals, faces the skeleton side and closes the opening. The drain portion of the edge cover material is slidably inserted into the edge cover material, which has a drain portion protruding from the plate-shaped edge closing portion, and the other end of an elastic body such as a spring held between the frames is connected to the edge cover material. A fore cover device for an expansion joint, characterized in that the fore edge cover material is always drawn toward the joint cover material by being connected to a closing portion.