JPS6212723Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an expansion joint device for covering gaps provided in structures such as buildings, particularly at joints of structures of different heights.

Between structures such as buildings and roads, there is a gap of several tens to hundreds of millimeters at the joints to prevent expansion, contraction, deformation, vibration, etc. that occur in one structure from spreading to the other structure. A gap is provided. This gap must be covered, on the one hand, to prevent danger, and on the other, to prevent it from becoming a collection point for dust or rainwater.

A typical prior art is shown in Utility Model Application Publication No. 48-19409. In this prior art, a leg piece is fixed to a horizontal floor surface, and a retaining hook piece is fixed to a vertical wall that is spaced from the floor surface, and the vertical part of the lid material having an L-shaped cross section is attached to the retaining hook piece. The horizontal part of the lid material is placed on top of the leg piece.

In such prior art, the lid is fixed to the vertical wall via the hook piece, so when the vertical wall is displaced upward relative to the floor, the lower surface of the horizontal portion of the lid A gap is created between the upper surface of the leg piece and the upper surface of the leg piece. As described above, the sealing performance of the prior art is insufficient.

An object of the present invention is to provide an expansion joint device with improved sealing performance.

The present invention includes a base 10 fixed at the upper corner of one structure 1a facing the gap S, and a base edge 40 fixed opposite the vertical wall surface of the other structure 1b across the gap. A flat cover plate 30 with a water gradient between
A hook portion 33 is formed on the other end edge of the lid plate 30, and the hook portion 33 includes a hanging portion 33a that hangs downward, and a hanging portion 33a that extends outwardly from the lower end of the hanging portion 33a. It has a protruding part 33b and an engaging part 33c that protrudes upward from the outer end of the protruding part 33b and is shorter than the hanging part 33a, and the base edge 40 is a vertical wall 41 fixed to a vertical wall surface.
and a concave hook portion 42, which includes a downwardly directed short first hook body 4 protruding from the vertical wall 41.
2a, and an upwardly directed second hook body 42 that protrudes slightly longer from the vertical wall 41 below the first hook body 42a.
b, the protruding part 33b of the hook part 33 is on the second hook body 42b, and the engaging part 33c is on the vertical wall 41 and the first hook body 42a.
interposed between the hook portion 33 and the concave hook portion 42.
are engaged, and one side 34 of the cover plate 30 is held between the cover plate support part 12 of the base 10 and the cover plate pressing part 22 of the ridge 20 fixed to the base 10. This is an expansion joint device characterized by the following.

As shown in FIG. 1, the base 10 has a cover plate support part 12 at the upper end and a water stop plate mounting part 1 facing the gap at the lower part.
3, an inclined wall 14 with a water slope and a fixed wall 17 extend outward (meaning the side opposite to the gap under use) at intervals above and below. , and the outer end of the inclined wall is bent in the vertical direction to form a vertical wall 15, the upper end thereof is bent in a water slope to form a ridge mounting rib 16, and a drainage hole is provided at the outer end. It is a part made of extruded metal material. In the figure, in order to improve strength, as a preferred embodiment, the inclined wall 14 and the fixed wall 17 are connected by a leg wall 18, and a hollow part H is formed by these three walls and the base wall 11.

As shown in FIG. 1, the presser edge 20 has a pressing part 22 on the inside edge of the board 21 (on the side of the gap under use), a drain wall 23 on the outside edge, and a cutout wall 23 in the center of the back side. It is a part made of an extruded metal material and is provided with a hook-shaped locking rib 24.

The cover plate 30 is a substrate 31 having a width sufficiently larger than the width of the gap S, and has a downwardly directed locking rib 32 on one side and an L-shaped cross section on the other side. This is a part made of extruded metal material and provided with a hook portion 33. As clearly shown in FIG. 2, the hook portion 33 includes a hanging portion 33a hanging downward, and a protruding portion 3 extending outward from the lower end of the hanging portion 33a.
3b, and an engaging portion 33c that protrudes upward from the outer end of the protruding portion 33b and is shorter than the hanging portion 33a, and has a roughly L-shaped cross section as described above. Therefore, the hook portion 33 and the concave hook portion 42 described below
In the engaged state, the protruding portion 33b of the hook portion 33 is on the hook body 42b, and the engaging portion 33c is interposed between the vertical wall 41 and the hook body 42a.

The base edge 40 has a concave hook portion 42 at the top of the vertical wall 41.
However, it is a part made of an extruded metal material in which a water stop plate mounting part 43 is provided at the bottom thereof to protrude inwardly (toward the gap side), and the recessed hook part is as illustrated in FIG. , a short downward hook 42a protruding from the upper end of the vertical wall 41, and below it,
It consists of a rather long protruding hook body 42b pointing upward.

The water stop plate 50 is a water-impermeable, flexible, elongated membrane body, and protrusions 51 and 52 for attachment to the base edge 40 and the base 10 are provided on both side edges of the water stop plate 50. . Suitable materials having the above properties include natural or synthetic rubber or synthetic resin.

Next, we will discuss how to use it. That is, in FIG. 1, reference numeral 1a indicates one structure on the roof side;
1b is the other structure having a vertical wall surface, and first, an angular base iron piece 4 is welded to the upper corner of one structure using reinforcing bars 3 buried within the structure. Then one structure 1a
The base 10 is placed on the upper surface, and the fixed wall 17 is attached to the base iron piece 4 with the screws 5a, with the base wall 11 facing the gap.
The structure 1b, which is fixed to the wall and forms a vertical wall, includes:
A base edge 40 is attached using anchor bolts 8 at a position facing the base 10 across a gap S. Needless to say, the opposing positions are positions where the cover plate 30, which will later be spanned between the base and the base edge, has a water slope toward the base. In addition, by inserting the protrusions 52 and 51 of the water stop plate into the grooves provided in the water stop plate attachment parts of the base and the base edge, the water stop plate can be used to cover the upper surface of the gap and cross the bridge. However, because the material of the water stop plate is flexible, the central part hangs down, creating a gutter-like shape.

Next, as shown in FIG. 2, the lid plate is rotated in the direction of the arrow, that is, clockwise, by touching the L-shaped hook 33 on the other side from the diagonally upper side to the concave hook 42 on the base edge. let Then, both hook parts 33 and 42 are completely engaged, and one side of the cover plate rests on the gasket 6 that is inserted into the groove of the cover plate support part of the base.
Therefore, the pressing part 22 has a notch 7a and a packing 7 inserted therein, and the locking rib 20 is brought to the pressing part 22.
4 is engaged with the rib attachment rib 16 of the base, and the rib is integrally fixed to the base with screws 5b.
In the fixed state, as shown in the first diagram, one side of the base plate of the cover plate is attached to the support part 12 through the gaskets 6 and 7.
This means that it is held between the press part 22 and the press part 22. After completing the above installation, the necessary mortar finishing 9a and caulking 9b were applied, and all installation was completed. In this case, the mortar finish coating on the vertical wall surface of the structure 1b is applied to the engaging parts 33 to 4.
It is best to paint it to cover 2.

Since the present invention is constructed as described above, raindrops that fall on the cover plate flow down on the base plate 31, pass through the notch 7a of the gasket 7, fall onto the inclined wall of the base, and then fall onto the inclined wall of the base. The water flows down and is led out through the drainage hole 19 to the outside of the device of the present invention, that is, to the roof surface of the structure 1a in FIG. Rainwater that should have percolated into the device is collected on a gutter-like water stop plate, and is naturally flowed down by an appropriate slope to be led to a drainage channel (not shown). As described above, with the proposed device, it is natural that rainwater does not enter the gap, but
Since both structures are clamped by one side of the cover plate so that they can fold, deformation of one structure will not affect the other structure, and the expansion joint will not be affected. It fully demonstrates its functions.

In particular, in the present invention, by angularly displacing the cover plate 30 as indicated by the arrow in FIG. 2, the engaging portion 33c is interposed between the vertical wall 41 and the first hook body 42a, and the hook portion 33 and the concave hook portion 42 can be engaged with each other, and in this engaged state, the cover plate 30 can be angularly displaced. Therefore, even if the structures 1a and 1b are vertically displaced relative to each other, the cover plate 30 can be angularly displaced as described above, thereby always ensuring sealing performance. Such excellent effects of the present invention cannot be achieved with the above-mentioned prior art.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal cross-sectional view showing an embodiment of the present invention in use, and FIG. 2 is a partial cross-sectional view for explaining the engagement between the cover plate and the base edge. 1a and b are the structure, 2 is the gap, 3 is the reinforcing bar, 4 is the base iron piece, 5 is the screw, 6 is the packing, 7 is the packing with notches, 8 is the anchor bolt, 9a and b are the mortar finishing, 10 is the base , 11 is the base wall, 12 is the cover plate support part, 13 is the water stop plate mounting part, 14 is the inclined wall, 15 is the vertical wall, 16 is the rib mounting rib, 17 is the fixed wall, 18 is the leg wall, 19 is the drainage hole, 20 is a ridge, 21 is a base plate, 22 is a cover plate pressing part, 23 is a drain wall, 24 is a locking rib, 30 is a cover plate, 31 is a base plate,
32 is a locking rib, 33 is an L-shaped hook, 34 is one side, 40 is a base edge, 41 is a vertical wall, 42 is a concave hook, 5
0 is a water stop plate, 51 and 52 are protrusions.

Claims (1)

[Claims for Utility Model Registration] A base 10 is fixed at the upper corner of one structure 1a facing the gap S, and a base 10 is fixed opposite the vertical wall surface of the other structure 1b across the gap. A flat cover plate 30 is suspended between the base edge 40 and the base edge 40 with a water slope, and a hook portion 33 is formed on the other end edge of the cover plate 30, and this hook portion 33 extends downwardly. It has a drooping part 33a, a protrusion part 33b that protrudes and extends outward from the lower end of the drooping part 33a, and an engaging part 33c that protrudes upward from the outer end of the protrusion part 33b and is shorter than the drooping part 33a. However, the base edge 40 is a vertical wall 41 fixed to a vertical wall surface.
and a concave hook portion 42, which includes a downwardly directed short first hook body 4 protruding from the vertical wall 41.
2a, and an upwardly directed second hook body 42 that protrudes slightly longer from the vertical wall 41 below the first hook body 42a.
b, the protruding part 33b of the hook part 33 is on the second hook body 42b, and the engaging part 33c is on the vertical wall 41 and the first hook body 42a.
interposed between the hook portion 33 and the concave hook portion 42.
are engaged, and one side 34 of the cover plate 30 is held between the cover plate support part 12 of the base 10 and the cover plate pressing part 22 of the ridge 20 fixed to the base 10. An expansion joint device characterized by: