JPH043042Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to an expansion joint.

(Prior art) In conventional expansion joints, support members are fixed to each building frame facing each other with a gap between them, and a joint cover is attached to these support members via a spring member to cover the gap between the building frames. In addition to the one in which a sliding member is provided that slides on the support member instead of the spring member, there is also one in which a joint cover is attached to the sliding member. However,
When opposing buildings are displaced in opposite directions in the relative direction of the building frames due to uneven settlement, earthquake, etc., in the former method, this displacement is absorbed by the elasticity of the spring member, and the same elasticity is absorbed by the joint cover. It returns to its original position again.
On the other hand, according to the latter method, the above-mentioned displacement can be absorbed by the sliding member, but this sliding causes the joint cover to shift its position and remain as it is. I'm getting used to it. If the position of the joint cover shifts, an extra gap may be created between the building frame and the joint cover, or the joint cover may become deformed due to uneven load distribution. In addition, since the sliding member could only slide relative to the supporting member, if opposing buildings were displaced in opposite directions relative to each other, this displacement could be absorbed; When displacements occur in opposite directions, it is difficult to absorb them, so
A solution to this point was required.

(Technical problem of the invention) The present invention solves the above-mentioned drawbacks and makes it possible to stably hold the joint cover even when the building frame is vertically displaced, especially in the case of an expansion joint that uses a sliding method. The technical problem is to provide an expansion joint that can be used.

(Means for Solving the Problems) In order to solve the above problems, the expansion joint according to the present invention fixes support members to each building frame facing each other with a gap, and In an expansion joint that supports a joint cover that covers a gap between building frames, at least one support member is formed into a box shape, and a through groove or a penetration is formed in the side wall of the support member on the opposite side to the gap between the building frames. A sliding member protruding toward the one support member is fixed to the inner surface of the side edge of the joint cover that has a hole formed therein, and extends from one side end of the joint cover, and a substantially central portion of the sliding member is fixed to the inner surface of the side edge that hangs down from one side end of the joint cover. The elastic member is slidably supported by penetrating the groove or through hole, and is provided with an elastic member that expands and contracts in the sliding direction of the sliding member between the one support member and the joint cover material. do.

(Operation and effect of the device) According to the above-described configuration, when opposing buildings are displaced in opposite directions in the relative direction of the building frames due to uneven settlement, earthquake, etc., the sliding member will not slide relative to the supporting member. , whereby the above displacement is absorbed. In addition, if the building frame is displaced in the opposite direction in the vertical direction, the joint cover will also tilt, but the sliding member will be centered on the part engaged with the through groove or through hole with respect to the supporting member. Since it tilts, displacement in the vertical direction can be effectively absorbed, and the joint cover can be held stably.

Further, since the support member is formed into a hollow box shape, it is very easy to mold and the cost is low.

Furthermore, since the substantially central portion of the sliding member is supported by the through groove or through hole of the box-shaped support member,
Neither the support strength of the joint cover nor the degree of freedom of sliding by the sliding member is impaired.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

In FIG. 1, the symbol A indicates an expansion joint. This expansion joint A fixes the support members 3, 3 to the parapet frames 1, 1 of each building facing each other with a gap, and the support members 3, 3 are attached to both the support members 3, 3 in the relative direction of the parapet frames 1, 1. Sliding members 4, 4 are provided so as to be slidable, and a joint cover 5 that covers the gap S between the parapet frames 1, 1 is fixed to the sliding members 4, 4, and the joint cover 5 is fixed to the sliding members 4, 4 to cover the gap S between the parapet frames 1, 1. Elastic members 6, 6 that expand and contract in the sliding direction of the sliding members 4, 4 are provided between the inner cover 5 and the inner cover 5.

The support member 3 has a main body 3a formed in the shape of a hollow box.
A cover receiving part 3b provided with an airtight material 7 is provided protrudingly on the upper part of the parapet frame 1, and the gap S between the parapet frames 1, 1 is
A through groove 8 opening in the direction of the frame gap S is formed in the side wall 3c opposite to the bottom wall 3.
d is fixed to the ceiling wall 1a of the parapet frame 1 with bolts or the like, and is provided along the ceiling wall 1a. Preferably, a caulking material 9 is filled between the side wall of the support member 3 and the side surface of the parapet frames 1, 1. Note that the through groove 8 is formed in the side wall portion 3c.
It is preferable to provide the hole in the middle of the hole, and the hole may be a through hole instead of the through groove.

Note that the supporting members 3, 3 are made by bending a long extruded material such as aluminum, and closing both ends thereof with screws, etc., and forming a groove in one closed end as shown by the dotted line. However, the other closed end may be configured to fit. Further, the support member 3 may be integrally molded from an extruded material such as aluminum.

A water stop plate 1 is provided in the gap S between the parapet frames 1 and 1.
0 is provided, and mounting brackets 24,
24, the fireproof belt 11 is provided, and the water stop plate 10
Both end portions of the mounting fittings 24, 24 are fixed to the ceiling wall portions 1a, 1a of the parapet frames 1, 1 together with the supporting members 3, 3.

The joint cover 5 covers both parapet frames 1, 1.
side edges 5a, 5a are formed to hang down from both ends, and are constructed over the support members 3, 3.

The sliding member 4 is a short or long metal member formed by bending a sliding piece 4a and a fixed piece 4b into a substantially L-shape. inserted inside the parapet frame 1,
It is formed to be slidable in one relative direction (horizontal direction). The fixing piece 4 is abutted on the inside of both side edges 5a of the joint cover 5 and fixed with screws or the like.

Next, the elastic member 6 is made of a curved metal spring material as shown in FIG. Side wall portion 3 of members 3, 3
c and 3c are in contact with the outer surfaces. The elastic member 6 does not need to be a curved spring material. Even coil springs
Alternatively, it may be made of an elastic material such as rubber or spongy plastic.Since the expansion joint A is constructed as described above, the opposing parapet frames 1, 1 may face each other due to uneven settlement, earthquakes, etc. In the case of a displacement in the opposite direction, the sliding members 4, 4 slide relative to the supporting members 3, 3, thereby absorbing said displacement. Further, if the parapet frames 1, 1 are displaced in opposite directions in the vertical direction, the joint cover 5 will also be tilted, but the sliding members 4, 4 will not fit into the through groove 8 with respect to the supporting members 3, 3. Since the joint cover 5 is tilted around the part engaged with the joint cover 5, displacement in the vertical direction can be effectively absorbed, and the joint cover 5 can be stably held. In addition, especially when the elastic members 6, 6 are displaced in opposite directions, the elastic members 6, 6
Since the sliding members 4, 4 are also expanded or contracted, their elasticity causes the sliding members 4, 4 to be pulled back or pushed back by the amount of displacement. In this way, even if the sliding members 4, 4 slide with respect to the supporting members 3, 3, the elastic members 6,
6, the joint cover 5 is held in the same position and a good joint condition can be maintained.

Further, since the support member 3 is only formed in the shape of a hollow box, it is very easy to mold and the cost is low.

Furthermore, since the substantially central portion of the sliding member 4 is supported by the through groove 8 of the box-shaped support member 3, both the support strength of the joint cover 5 by the sliding member 4 and the degree of freedom of sliding are improved. It will not be damaged.

Note that the aspect of the expansion joint is not limited to the above-mentioned example. Next, another example of the expansion joint will be shown.

First, Figure 2 shows the parapet frame 1 of one building.
This is an example of an expansion joint where the wall frame 2 of the other building faces the other building. Support members 3 and 27 are fixed to the parapet frame 1 and the wall frame 2, respectively, and the A sliding member 4 is provided so as to be slidable in the relative direction of the parapet frame 1 and the wall frame 2, and the parapet frame 1 is attached to the sliding member 4.
joint cover 5 that covers the gap S between the wall frame 2 and the wall frame 2
One end of the support member 27 is fixed and the other end of the support member 27 is fixed.
An expansion joint B is formed by engaging with the expansion joint B. In addition, water stop plates 10 are provided on the building frames 1 and 2 together with the support members 3 and 27.
Mounting brackets 24, 24 for both ends of the fireproof belt 11
is fixed.

The support members 3 on the parapet frame 1 are the same as shown in FIG. The elastic member 6 is also attached in the same manner as shown in the figure.

The support member 27 on the wall frame 2 has a U-shaped cross section and extends upward from one edge of the fixing part 27a to an engaging protrusion 27b.
is a long member having a mounting portion 27c formed upward from the other end edge, and the fixing portion 27a is attached to the mounting portion 2.
Wall frame 2 with 7c facing up and the engaging protrusion 27b facing down.
It is fixed to.

Furthermore, the joint cover 28 is formed to have a width sufficient to cover the gap S between the buildings, and has a side edge 28a formed on one side and a raised portion 28b formed on the other side. At the same time, a hook-shaped engaging portion 28c is formed from the upper end of the raised portion 28b.

The joint cover 28 has one side edge 28
a is fastened and fixed to the sliding member 4 of one support member 27, and the engagement portion 28c on the other side is engaged with and supported by the engagement protrusion 27b of the other support member 27. .

Further, a long or short presser member 29 is fixed to the upper mounting portion 27c of the support member 27 on the wall frame 2 side, and the lower end of the presser member 29 comes into contact with the upper part of the engaging portion 28c of the cover 28. , or located in close proximity. Further, a decorative cover 30 is fixed to the mounting portion 27c and covers the outer side of the engaging portion 28c of the cover 28. Note that 31 is a caulking material, and 32 is an outer wall finishing material.

In the expansion joint B having the above structure, the gap S between the two bodies 1 and 2 is covered by the joint cover 28, and furthermore, in the case of uneven settlement, earthquake, etc., the gap S between the two bodies 1 and 2 is When displaced, the joint cover 28 is subjected to the force of floating against the support member 27 of the wall frame 2;
However, above the support member 27, there is a presser member 29.
is provided, so that even if the cover 28 is urged in the floating direction due to wind pressure, strong earthquakes, etc., it is held down by the holding member 29, and a stable engagement state is always supported, so that the wall frame 2 The support member 27 and the joint cover 28 never come out of engagement. In addition, since the engagement portion between the support member 27 and the joint cover 28 is covered by the decorative cover 30, the appearance
Improves appearance.

Moreover, when both the above-mentioned bodies 1 and 2 are displaced in the horizontal direction, the joint cover 28 is displaced in the relative direction (horizontal direction) of the bodies 1 and 2, but the sliding member 4,
4 slides on the support members 3, 3, thereby absorbing the above displacement. Further, if both the frames 1 and 2 are displaced in opposite directions in the vertical direction, the joint cover 28 will also be tilted, but the sliding member 4 on the parapet frame 1 side will not fit through the through groove with respect to the support member 3. Since the joint cover 8 is tilted around the portion engaged with the joint cover 8, displacement in the vertical direction can be effectively absorbed, and the joint cover 28 can be stably held.

Furthermore, as in the example shown in FIG. 1, the elasticity of the elastic member 6 returns it to its original position, so that it is held in the same position as before displacement, and a good joint condition can be maintained.

Next, FIG. 3 shows an example of an expansion joint when the wall frame 2 and ceiling frame 34 of one building face each other, and support members 35 and 36 are fixed to the wall frame 2 and ceiling frame 34, respectively. , one support member 36 is provided with a sliding member 4 so as to be slidable in the relative direction of the ceiling frame 34 and wall frame 2, and the sliding member 4
A joint cover 3 that covers the gap S between the above-mentioned bodies.
One end of 9 is fixed, and the other end is fixed to the other support member 3.
5 constitutes an expansion joint C. An elastic member 6 that expands and contracts in the sliding direction of the sliding member 4 is provided between the support member and the joint cover.

The support member 35 on the side of the wall frame 2 is bent into a hook shape, and a locking protrusion 35a is formed at its lower end, and the locking protrusion 35a is formed in a locking groove provided at one end of the joint cover 39. It is locked at 37. On the other hand, the support member 3 provided on the lower surface of the ceiling frame 34
Reference numeral 6 has a hollow main body 36a with a mounting edge 36a protruding from the upper part thereof, and a through groove 8 for the sliding member 4 formed in the side wall opposite to the body gap S. It is provided by fixing it to the ceiling frame 34. Note that airtight material 3 is provided at both ends of the joint cover 39.
8,38 are attached.

Also in the expansion joint C having the above configuration, the gap S between the two main bodies is the joint cover 3.
9, and when both frames 2 and 34 are relatively displaced in the event of uneven settlement, earthquake, etc., the displacement joint cover 39 is covered by the sliding member 4 provided on the support member 36 of the ceiling frame 34. absorbed by the sliding motion of the Further, if both the frames 2 and 34 are displaced in opposite directions in the vertical direction, the joint cover 39 will also be tilted, but the ceiling frame 34
Since the side sliding member 4 tilts with respect to the support member 3 around the part engaged with the through groove 8, displacement in the vertical direction can be effectively absorbed, and the joint cover 39 is stably held. be able to.

Furthermore, when both the frames 2 and 34 are displaced in the horizontal direction, even if the sliding member 4 is displaced due to sliding, it is returned to its original position by the elasticity of the elastic member 6, so that the joint The cover 39 is held in the same position and can maintain a good joint condition.

In addition, in the same manner as described above, an elastic member can be provided between the joint cover and the support member of the expansion joint in the ceiling frame and the ceiling frame, the wall frame and the floor frame, etc.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing an example of an expansion joint according to the present invention, FIGS. 2 and 3 are sectional views showing other embodiments, and FIG. 4 is a perspective view of an example of an elastic member. It is. Symbols A, B, C...Expansion joint, 1...Parapet frame, 2...Wall frame, 3,
27, 35, 36... Supporting member, 4... Sliding member, 5, 28, 39... Joint cover, 6...
...Elastic member.

Claims (1)

[Scope of utility model registration request] In an expansion joint in which support members are fixed to each building frame facing each other with a gap therebetween, and a joint cover that covers the gap between the building frames is supported via these support members, at least one of the support members is attached to a box. A through groove or a through hole is formed in the side wall portion of the supporting member opposite to the body gap, and the inner surface of the side edge hanging from one end of the joint cover is provided with one of the supporting members. A sliding member protruding toward the member side is fixed, a substantially central portion of the sliding member is passed through the through groove or the through hole to be slidably supported, and the one supporting member and the joint cover material are connected to each other. An expansion joint characterized in that an elastic member that expands and contracts in the sliding direction of the sliding member is provided between them.