JP2596545Y2 - Expansion joints - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an expansion joint.

[0002]

2. Description of the Related Art In general, an expansion joint is attached to a pair of skeletons on the premise that the skeletons change mutually. Therefore, there is a case where a hinge portion is provided so as to cope with the fluctuation of the frame.

[0003]

However, even if the cover plate or the like follows the fluctuation of the skeleton, the sealing material provided at the end of the cover plate does not easily follow the fluctuation, and when the skeleton changes. In some cases, the sealing property of the expansion joint is impaired.

[0004] Therefore, an object of the present invention is to provide an expansion joint that can reliably maintain the sealing performance even if the frame fluctuates, and that also impairs the external shape.

[0005]

In order to achieve the above-mentioned object, an expansion joint according to the present invention provides an expansion joint that covers a space between a pair of skeletons.
A packing that is swingably attached to the skeleton via a hinge portion, and a packing that abuts against the back surface of the cover plate or an edge mounting member thereof is mounted on the skeleton side outside the hinge portion. Is provided on the body side without interposing a sealing material between the cover member and the side end of the cover plate.

[0006]

[Function] Since the packing mounted on the skeleton side abuts against the back surface of the cover plate or its edge mounting member, even if the skeleton fluctuates and the cover plate swings around the hinge, the fluctuation is not affected. While following, the packing comes into contact with the back surface of the cover plate or the back surface of the edge mounting member, and exhibits sufficient sealing performance.

The packing is covered with a covering member,
In addition, since no sealing material is interposed between the covering member and the side end of the cover plate, the sealing material that has conventionally been exposed to the outside can be omitted.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings showing embodiments.

FIG. 1 shows an expansion joint according to the present invention. This expansion joint covers a gap 3 between a pair of frame bodies 1 and 2 and includes a cover plate composed of a pair of plate members 4 and 5. 6 and an edge mounting member 7 of the cover plate 6
a, 7b and edge material 8 for holding edge mounting members 7a, 7b
a, 8b, etc.

The one edge mounting member 7a has a flat plate portion 9 and
It comprises a rising piece 10 provided on the front surface 9a of the flat plate portion 9 and a fitting female portion 11 provided on the back surface 9b of the flat plate portion 9, and has a circular cross section provided on one edge member 8a. Mating male part 12
Are fitted to the fitting female portion 11.

The edge mounting member 7a has a
The receiving member 13 that receives (supports) the cover plate 6 is a screw.
The end 4a of one of the plate members 4 is attached via screws 14 to the outside thereof.

That is, the receiving member 13 includes a rising piece 13a corresponding to the rising piece 10 of the edge mounting member 7a, and a main body 13b for receiving the plate member 5, and the plate member 4 has The above-mentioned end 4a corresponding to the front surface 9a of the edge mounting member 7a, the bent portion 4b corresponding to the rising piece 10 of the edge mounting member 7a, and the main body 4 corresponding to the receiving member 13.
c, and an inner protruding piece 4d that bends from the main body 4c to the space 3 side.

The other edge mounting member 7b is a main body comprising inner and outer pieces 16, 17 connected via a connecting piece 15.
18 and a fitting female portion 19 provided on the back surface of the main body portion 18, and a fitting male portion having a circular cross section provided on the other edge member 8b.
20 fits into the fitting female portion 19.

The other plate member 5 has a bent piece 5a corresponding to the edge mounting member 7a, and a main body 5c connected to the bent piece 5a via a connecting piece 5b.
And a protruding piece 5 projecting obliquely outward from the main body 5c.
d, and the bent piece portion 5a is
It is attached to the inner piece 16 of the edge attachment member 7b.

Accordingly, the cover plate 6 has a hinge portion having one side end 21a formed by the fitting female portion 11 and the fitting male portion 12.
22a swingably attached to the frame 1 at the other end
21b is a hinge portion 22b composed of a fitted female portion 19 and a fitted male portion 20
Is attached to the frame 2 so as to be able to swing.

A packing fitting piece 23 is provided upright on the outer side of the main body 24 of the one edge member 8a.
A mounting piece 25 parallel to the main body 24 is provided on the packing fitting piece 23. Further, a concave groove 26 that opens outward is provided inside the side of the main body 24, and the end engaging portion 28 of the water blocking plate 27 is engaged with the concave groove 26.

Further, a packing 30 which is in contact with the back surface 29 of the edge mounting member 7a is fitted to the packing fitting piece 23. The packing 30 includes a base 30a fitted into the groove 31 of the fitting piece 23, and a tongue 30b protruding from the groove 31, and the tip of the tongue 30b is formed on the back surface of the edge mounting member 7a. 29
Abut.

The packing 30 is made of, for example, vinyl chloride or chloroprene rubber.

The mounting piece 25 of the rim 8a has
A covering member 32 that covers the packing 30 from outside is attached via the screw 14. The covering member 32 includes a mounting piece 32a corresponding to the mounting piece 25 of the edge material 8a, and a main body piece 32b that protrudes outward from the mounting piece 32a to form a concave groove 33 that opens inward.
And covers the packing 30 and the side end 21a of the cover plate 6.

The covering member 32 and the cover plate 6
No sealing material is interposed between the side end 21a and the side end 21a. Note that a seal member 34 is interposed between the covering member 32 and the skeleton 1.

Thus, the other edge member 8b, like the one edge member 8a, includes the packing fitting piece 23 and the concave groove 26 provided inside the side of the main body 24, and is provided with the packing fitting. One part
The packing 30 is fitted into the groove 31 of the 23. This packing 30
The tongue-shaped portion 30b contacts the back surface 35 of the edge mounting member 7b. The other end locking portion 28 of the water blocking plate 27 is fitted in the concave groove 26 of the edge member 8b.

A covering member 36 for covering the packing 30 from outside is attached to the attachment piece 25 of the edge member 8b. This covering member 36 is, like the covering member 32 described above, a mounting piece 36a.
A main body piece 36b forming a concave groove 33 opening inward;
, The packing 30 and the side end 21 of the cover plate 6.
b.

Therefore, also in this case, of course, no sealing material is interposed between the covering member 36 and the side end 21b of the cover plate 6, and the sealing material 34 is provided between the covering member 36 and the frame 2. Is interposed.

The rim members 8a and 8b are fixed to the corresponding skeletons 1 and 2 by fixing members 37 such as anchor bolts.

Therefore, in the expansion joint constructed as described above, for example, when the frames 1 and 2 fluctuate (displace) so as to approach and separate from each other, the cover members 4 and 5 of the cover plate 6 are connected to each other. It partially overlaps in the range A so that it can slide freely, and can sufficiently follow this approach / separation.

As shown in FIG. 2, when the frames 1 and 2 fluctuate (displace) inward and outward, and the other frame 2 protrudes outward with respect to the one frame 1, the cover plate 6 can also be used. Since the side end portions 21a and 21b are pivotally supported via the hinge portions 22a and 22b, they can sufficiently follow this variation. Of course, unlike the case of FIG.
Even when one skeleton 1 protrudes outward from the other skeleton 2, it can sufficiently follow this variation.

However, even if the skeletons 1 and 2 approach and separate from each other and the clearance of the gap 3 is reduced or enlarged, the edge mounting members 7a and 7b for the packings 30 and 30 are provided.
The position of the tongue 30 of the packing 30, 30 does not fluctuate.
As for b, the back surfaces 29, 35 of the edge mounting members 7a, 7b remain in contact with each other, and the airtightness inside is maintained.

As shown in FIG. 2, when the frame 2 projects outward from the frame 1, the cover plate 6
Has an inclined shape in which the other side end 21b projects outward with respect to the one side end 21a in plan view. That is, the one side end 21a swings around the hinge 22a in the direction of arrow B, and the tongue 30b of the packing 30 is pressed in the direction of arrow B, and does not separate from the back surface 29 of the edge mounting member 7a. .

The other side end portion 21b swings about the hinge portion 21b in the direction of arrow C so that the back surface of the edge mounting member 7b is
The tongue portion 30b of the packing 30 tries to separate from 35,
The portion of the packing 30 which is in contact with the tongue portion 30b is close to the hinge portion 22b and does not significantly displace. The tongue portion 30b of the packing 30 sufficiently follows the displacement, and There is no separation from 35.

Therefore, also in the case shown in FIG.
Each packing 30, 30 is provided on the back surface 2 of the edge mounting members 7a, 7b.
It comes into contact with 9, 35 and can maintain airtightness.

As a matter of course, contrary to the case of FIG. 2, even when the frame 1 protrudes outward from the frame 2, each of the packings 30, 30 sufficiently follows the fluctuation, and each of the edge mounting members 7a, 7b is maintained.

FIG. 3 shows another embodiment. In this case, the expansion joint comprises an outer surface 1a of the frame 1 and an outer surface 2a of the frame 2.
a is disposed where a right angle is formed.

Therefore, the one frame 1 side is the same as that of the above-described embodiment, and the description thereof will be omitted. In addition, edge material 8
The b, the edge mounting member 7b, and the covering member 36 are also only inverted when viewed in plan as compared with FIG. 1, and a description thereof will be omitted.

However, only the plate member 5 of the cover plate 6 is different from that of FIG. That is, the protruding piece 5d, the main body piece 5c, and the connecting piece 5b are the same, but the bent piece 5a is different. In this case, the bent piece portion 5a has an L-shaped cross section.

Therefore, also in this case, each of the packings 30, 30
Are in contact with the back surfaces 29, 35 of the edge mounting members 7a, 7b, respectively, and the airtightness is sufficiently maintained even if the frames 1, 2 fluctuate.

That is, as shown in FIG. 4A, even if the frame 2 moves in the direction of the arrow X with respect to the frame 1 from the state shown in FIG. 3, as shown in FIG. Even if the frame 2 is displaced in the direction of the arrow Y with respect to the frame 2 from the state shown in FIG. 3, the packing 30 sufficiently follows the displacement, and the tongue-shaped portion 30b
Is always in contact with the back surface 35 of the edge mounting member 7b. Of course, also on one side end 21a side, as in the case of FIG.
The packing 30 follows the fluctuations of (a) and (b) of FIG. 4 and always comes into contact with the back surface 29 of the edge mounting member 7a.

Further, even if the frames 1 and 2 fluctuate so as to reduce and enlarge the gap 3 from the state shown in FIG. 3, the positions of the edge mounting members 7a and 7b with respect to the packings 30 and 30 may fluctuate. Therefore, the packings 30, 30 always contact the back surfaces 29, 35 of the edge mounting members 7a, 7b, and can maintain sufficient airtightness.

Next, FIG. 5 shows another embodiment. In this case, as in the expansion joint shown in FIG. 3, the outer surface 1a of the frame 1 and the outer surface 2a of the frame 2 form a right angle. It is arranged in.

In this case, unlike the above-described embodiment, the packings 30, 30 are formed of a rectangular cylinder having a hollow portion 40, and are bonded to the edge mounting members 7a, 7b.

That is, the groove portion 31 is not provided in the packing fitting piece 23 of the edge mounting members 7a, 7b.
Glued to 23. The packing on one side end 21a side
30 is such that, in plan view, the longitudinal direction of the rectangular hollow portion 40 is orthogonal to the width direction of the spacing portion 3, and the packing 30 is moved to the other side end 21 b side in a plan view. Is made parallel to the width direction of the gap 3. The packing 30 is also made of vinyl chloride, chloroprene rubber, or the like.

The cover plate 6 is provided with an intermediate member 41.
And side end members 42 and 43, and are attached to the edge attachment members 7a and 7b via the connecting member 44.

The intermediate member 41 includes a substrate 41a and a cover 41b.
And both ends are bent outward.

The side end member 42 is composed of a mounting piece 42a and a main body 42b for covering one side end of the intermediate member 41. The side end member 43 is composed of a mounting piece 43a and an intermediate member. 41, which covers the other side end of 41.

The edge mounting member 7a includes a flat plate-shaped main body 45, a mounting piece 46, and a connecting piece 47 connecting the mounting piece 46 and the main body 45. The fitting female portion 11 for forming the hinge portion 22a is provided at the rear inner edge of the portion 46. The attachment piece 42a of the side end member 42 is attached to the attachment piece 46 via the screw 14.

Then, the fitting male portion 20 of the edge mounting member 7a is fitted to the female portion 11, and a hinge portion 22a for pivotally supporting one side end 21a of the cover plate 6 is formed.

At the center of the rear surface of the main body 45 of the edge mounting member 7a, there is provided a concave groove 50 which opens on the rear side of the main body 45.
Further, a contact surface portion 51 is provided at an inner end of the back surface of the main body portion 45.

The other edge mounting member 7b includes a flat plate-shaped main body portion 48, a mounting piece portion 49, the mounting piece portion 49 and the main body portion 48.
And a connecting piece portion 56 having a step-like shape for connecting the two. The attaching piece portion 43a of the side end member 43 is attached to the attaching piece portion 49 via the screw 14.

At the inner end of the back surface of the mounting piece 49, a hinge 22
The fitting female part 19 for forming a is provided, the fitting female part 19 is fitted to the fitting male part 20 of the edge member 8b, and the other side end part 21b of the cover plate 6 is pivotally supported. The hinge portion 22b is formed.

At the center of the rear surface of the main body 48 of the edge mounting member 7b, a concave groove 50 is provided which opens to the rear side of the main body 45.
Further, a contact surface portion 51 is provided at an inner end of the back surface of the main body portion 48.

Since the covering members 32 and 36 are the same as the covering members 32 and 36 shown in FIG. 3, their description will be omitted.

Thus, the connecting member 44 is connected to the band-shaped body 52,
The locking projections 53 attached to both ends of the strip plate 52,
53, and the protrusions 53, 53 are provided with the edge mounting members 7a, 7
B is fitted into the concave grooves 50, 50.

The intermediate member 41 and the band-shaped body 52 are connected via a connecting member 54 having a screw or the like. At this time, the contact surfaces 51, 51 of the edge mounting members 7a, 7b abut on the front surface of the strip 52 of the connecting member 44. 55 is a strip 52
The side plate portion is provided continuously to

The connecting member 44 is inclined with respect to the longitudinal direction of the cover plate 6, and when the frames 1, 2 move in the direction of approaching / separating from each other, the inclination angle is displaced to change the angle of inclination. It is possible to follow the fluctuations of 1 and 2.

Therefore, also in this expansion joint, as shown in FIG. 6A, when the frame 2 fluctuates with respect to the frame 1 in the direction of the arrow X, the packing 30 on the side end 21b side is moved to the position shown in FIG.
(A), it is possible to deform and follow the change. Conversely, when the skeleton 2 moves in the arrow Y direction with respect to the skeleton 1, the packing 30 on the side end 21b side As shown in FIG. 6 (b), deformation (that is, extension) can follow the fluctuation.

Of course, the packing 30 on one side end 21a side
When the fluctuation is shown in FIG. 6A, the deformation (extends) follows the fluctuation as in the case of the packing 30 shown in FIG. In the case shown, the deformation (compressed) can follow the fluctuation as in the case of the packing 30 shown in FIG.

It should be noted that the present invention is not limited to the above-described embodiment, and the design can be freely changed without departing from the gist of the present invention. For example, since the edge mounting members 7a and 7b may be omitted, In such a case, the packings 30, 30 may be freely brought into direct contact with the back surface of the cover plate 6.

[0057]

Since the present invention is configured as described above, the following effects can be obtained.

[0058] Even if the frames 1 and 2 fluctuate (displace), the structure sufficiently follows the fluctuation and the hermeticity is reliably maintained.

The packings 30, 30 are not visible from the outside, and the seal member is not interposed between the cover plate 6 and the side ends 21a, 21b, so that the appearance is improved.

The entire structure is not complicated, and is easy to manufacture and easy to construct.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention.

FIG. 2 is a sectional view showing a displacement state.

FIG. 3 is a sectional view showing another embodiment.

FIG. 4 is a sectional view of a main part showing a displacement state.

FIG. 5 is a sectional view showing another embodiment.

FIG. 6 is a sectional view of a main part showing a displacement state.

[Explanation of symbols]

 Reference Signs List 1 frame 2 frame 3 gap 6 cover plate 21a side end 21b side end 22a hinge 22b hinge 32 covering member 36 covering member

Claims (1)

(57) [Scope of request for utility model registration] 1. An expansion joint for covering a gap 3 between a pair of frames 1 and 2 at a side end 21a, 21b of a cover plate 6.
To the frames 1 and 2 via hinge portions 22a and 22b so as to be swingable, and to the outside of the hinge portions 22a and 22b, the back surface of the cover plate 6 or the edge mounting members 7a and 7b. The packings 30, 30 abutting on the 29, 35 are attached to the skeletons 1, 2 side, and the covering members 32, 36 covering the packings 30, 30 from outside are attached to the cover plate 6
An expansion joint characterized by being provided on the side of the skeletons 1 and 2 without interposing a sealing material between the side ends 21a and 21b of the expansion joint.