JPH0322495B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention applies to the frameworks of both adjacent buildings, for example,
Earthquakes and ground subsidence regarding expansion joints that connect walls to walls, ceilings to ceilings, floors to floors, roofs to roofs, floors to walls, ceilings to walls, roofs to walls, walls in corner areas, etc. This invention relates to an expansion joint that can cope with fluctuations due to expansion, contraction, etc. of a building.

An object of the present invention is to provide an expansion joint with a small number of parts, a simple structure, and a cover member that can be easily attached, thereby reducing manufacturing and construction costs. It is.

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

In the first embodiment shown in FIGS. 1 to 4,
An expansion joint 1 is shown that connects the frameworks (wall-to-wall, ceiling-to-ceiling, or floor-to-floor) K1 and K2 of two adjacent buildings. This joint 1 is connected to the body surfaces K1a and K2a of both bodies K1 and K2.
The main components are a spring member 2 disposed astride the body, and a cover member 11 held by the spring member 2 to close the gap S between the two bodies K1 and K2.

The spring member 2 is attached to the main body surface K1 of both the main bodies K1 and K2.
a, K2a and both these body surfaces K1A,
It has attachment parts 3 and 4 fixed to K2a at both ends, and is formed into a substantially W-shape that elastically expands and contracts in response to fluctuations in both body parts K1 and K2, and above the top part 5 is a cover member 11. The receiving part 6 that locks the
is formed. In this embodiment, as shown in FIGS. 1 and 2, the spring member 2 is mainly composed of two left-right symmetrical spring plates 2a and 2b having a substantially V-shape or the like. , 2b, the upper portions of the opposing inner plate portions are fixed 7 in the shape of palms together by rivets, screws, spot welding, etc. to form an integral body. A receiving portion 6 that engages with the engaging portion 12 of the cover member 11 is formed in a substantially U-shape or the like with an upward opening at the upper end of the joint between the spring plate portions 2a and 2b. There are locking claws 6 on both sides of the upper opening of 6.
a is formed. A top portion 5 is formed at the lower end of the joint between both spring plate portions 2a and 2b via a rounded surface, and leg pieces 2c and 2d are formed at the ends of the folded portions of both trough portions 8 and 9 that are continuous with the lower ends of this top portion 5. Each has been extended. At the tips of these leg pieces 2c and 2d, screws 2 are attached along both body surfaces K1a and K2a.
1 and 22 are respectively formed, and the mounting parts 3 and 4 are fixed by ribs 3a and 4a.
The rigidity is increased by Furthermore, the position of the receiving portion 6 of the spring member 2 before the cover member 11 is attached is located a predetermined amount further inward (lower) than when the cover member 11 is attached. The cover member 11 is attached to the main body surfaces K1a and K2.
A spring force is set in the spring member 2 to urge it toward the direction a. At the lower part of the receiving part 6 of the spring member 2, a drawer locking part 10 is provided with a through hole (groove, (It may be a protruding piece, etc.).

That is, as shown in FIG. 4, the drawer rod B is inserted into the drawer locking portion 10 of the spring member 2, and the drawer rod B is spanned between both the mounting portions 3 and 4 of the spring member 2. Then, the receiving portion 6 of the spring member 2 is pulled outward by a predetermined amount and is locked and held. Then, with the receiving portion 6 pulled out as described above, the locking portion 12 of the cover member 11 is pushed into the receiving portion 6, so that the locking portion 12 is inserted into the receiving portion 6. It is becoming attached. Also,
When the spring member 2 elastically deforms and expands and contracts, in order to set a small amount of movement of the receiving part 6 in the inward and outward directions (up and down direction), the top part 5 or both valley parts 8 and 9 of the spring member 2 are The radius of curvature of the cover member 11 is actively formed to be large, thereby preventing the cover member 11 from floating up relative to both the body surfaces K1 and K2.

The elongated cover member 11 that is attached to the receiving part 6 of the spring member 2 described above and that closes the gap S between the two main bodies K1 and K2 is suitable for extrusion molding of aluminum alloy or bending of stainless steel, aluminum plate, etc. Fitting portions 11a and 11b having dovetail grooves for fitting gaskets 13 and 14 that are in close contact with both body surfaces K1a and K2a are formed at both ends thereof. The cover member 11 is attached to the main body surfaces K1a and K2a approximately in the center of the back (lower surface) of the cover member 11.
A locking portion 12 that engages with the receiving portion 6 of the spring member 2 when pushed toward the side is formed in an arrowhead shape in cross section.

Note that when installing the spring member 2 on both body surfaces K1a and K2a, a stopper made of synthetic resin, rubber, etc. The water plate 15 may be disposed by sandwiching both ends thereof. Moreover, when both the frame bodies K1 and K2 are inner walls and inner walls or ceiling and ceiling, the water stop plate 15 does not need to be provided.

In the expansion joint 1 of the first embodiment configured as described above, both bodies K1,
When K2 fluctuates, the spring member 2 elastically deforms in response to this fluctuation and expands, contracts, or twists, while the cover member 11, while being held by the spring member 2, moves the body surfaces K1a, K1a, and K2 of both bodies K1 and K2. K2
To move (slide, tilt, etc.) along a,
Deformation, damage, etc. of the cover member 11 are prevented.

In addition, to attach the cover member 11, first, as shown in FIG.
Place. Next, as shown in FIG. 4, the drawer rod B is inserted into the drawer locking part 10 of the spring member 2, and the receiving part 6 of the spring member 2 is moved against the receiving part 6 by the cover member 11. Pull it out by a predetermined amount so that the locking part 12 can be locked. Then, by extending the pull-out rod B between both the attachment parts 3 and 4 of the spring member 2, the receiving part 6 of the spring member 2 is prevented and held in a position where it is pulled out a predetermined amount outward. Here, while pushing the cover member 11 toward both body surfaces K1a and K2a, the locking part 12 of the cover spring 11 is pushed into the receiving part 6 of the spring member 2 in the drawn out position. A locking portion 12 is locked to the receiving portion 6 . Thereafter, by pulling out the drawer rod B from the drawer locking part 10 and taking it out, the installation work of the cover member 11 is completed. In this state, a spring force is generated in the spring member 2 that urges the cover member 11 toward both body surfaces K1a and K2a, and this spring force causes the gaskets 13 and 14 at both ends of the cover member 11 to
is pressed against both body surfaces K1a and K2a.

Furthermore, in this embodiment, the radius of curvature of the top 5 or both troughs 8, 9 of the spring member 2 is actively formed to be large when the spring member 2 is deformed in response to the fluctuations of the two main bodies K1, K2. The amount of movement of the receiving portion 6 of the spring member 2 in the inward and outward directions can be reduced, and lifting of the cover member 11 relative to both body surfaces K1a and K2a can be prevented.

Next, in a second embodiment shown in FIG. 5, an expansion joint 1 is shown that connects the frames K1 and K2 of two adjacent buildings (roofs, for example, both parapets on the roof). In this joint 1, the spring member 2 disposed astride the upper surfaces K1a, K2a of both the skeletons K1, K2 is substantially the same as in the first embodiment.

Both bodies K are engaged with the receiving portions 6 of the spring member 2.
1, a long cover member 11 that closes the gap S between K2
The outer surfaces K1b of both skeletons K1 and K2 are at both ends of the
Side edge 1 facing K2b with a predetermined gap therebetween
1c and 11d are formed, and these side edges 11
At the lower ends of c and 11d, there are gaskets 16 and 17 that are in close contact with the outer surfaces K1b and K2b of both bodies K1 and K2.
A fitting portion 11e having a dovetail groove for fitting the
11f is formed. Furthermore, cover member 1
1 A locking part 12 that locks to the receiving part 6 of the spring member 2 is formed in the center of the back surface, and on the left and right sides of the back surface, there are formed upper surfaces K1a and K2a of the frame bodies K1 and K2 and both mounting parts of the spring member 2. Fitting parts 11g and 11h having dovetail grooves for fitting gaskets 18 and 19 in close contact with the upper surfaces of the parts 3 and 4 are formed.

Note that the water stop plate 15 is arranged in the same manner as in the first embodiment. In addition, the outer surface K1 of both skeletons K1 and K2
Watertight members 23 and 24 made of elastically expandable sponge rubber or the like are disposed between K2b and both side edges of the cover member 11, as required.

The expansion joint of the second embodiment constructed as described above operates in substantially the same manner as the first embodiment.

Next, in the third embodiment shown in FIG. 6, an expansion joint 1 connecting the frames K1 and K2 of both adjacent buildings (floor and wall, ceiling and wall, wall and wall at an entrance corner) is installed. It is shown. At this joint 1, the body surface K1 of both bodies K1 and K2
Of the mounting parts 3 and 4 of the spring member 2 disposed astride K2a, the distal end of the mounting part 4 fixed to the other body surface K2a has a structure for locking the cover member 11. A hook-shaped locking piece 25 is formed,
At the base end of the mounting portion 4, there is a receiving portion 6 for the spring member 2.
A receiving portion 26 is formed to receive the tip of the pull-out rod B for pulling out the drawing rod B to the outside. In addition,
The other members of the spring member 2 are substantially the same as those in the first embodiment.

Both bodies K are engaged with the receiving portions 6 of the spring member 2.
1, a long cover member 11 that closes the gap S between K2
is formed into a substantially L-shaped cross section along the body surfaces K1a, K2a of both the body bodies K1, K2. One side (horizontal side) 11A of this cover member 11 has a fitting portion 11a formed at its tip end having a dovetail groove for fitting a packing 13 that closely contacts one body surface K1a. Other side (vertical side) 1 of cover member 11
1B has a fitting part 1 having a dovetail groove in which a gasket 14 that is in close contact with the other body surface K2a is fitted.
1b is formed, and a latching edge 27 that faces the latching piece 25 of the spring member 2 so as to be engageable is formed on the side surface of this fitting portion 11b. Further, at a predetermined position on the back side of one side 11A of the cover member 11, there is a locking portion 12 that locks with the receiving portion 6 of the spring member 2 by pushing the cover member 11 toward one body surface K1a. It is shaped like an arrowhead in cross section.

The expansion joint 1 of the third embodiment constructed as described above operates in substantially the same manner as the first embodiment.

Next, in a fourth embodiment shown in FIG. 7, an expansion joint 1 is shown that connects the frames (roof and walls) K1 and K2 of both adjacent buildings. At this joint 1, both bodies K1, K
The spring member 2 disposed astride the two body surfaces K1a and K2a is substantially the same as that in the third embodiment.

Both bodies K are engaged with the receiving portions 6 of the spring member 2.
1, a long cover member 11 that closes the gap S between K2
is formed into a substantially L-shaped cross section along the body surfaces K1a, K2a of both the body bodies K1, K2. At the tip of one side 11A of this cover member 11 is one frame K.
A side edge 11c is formed opposite to the outer surface K1b of 1 with a predetermined gap, and this side edge 11
A fitting part 11e having a dovetail groove for fitting the packing 16 which is in close contact with the outer surface K1b of one of the frame bodies K1 is formed at the lower end of the frame K1. moreover,
At a predetermined position on the back of one side 1A of the cover fixing 11,
Fitting portion 1 having a dovetail groove for fitting the gasket 18 in close contact with the body surface K1a of one body K1
1g and a locking portion 12 that locks onto the receiving portion 6 of the spring member 2 are formed. In addition, the other body surface K is provided at the tip of the other side 11B of the cover member 11.
A fitting part 11b having a dovetail groove is formed into which the packing 14 that closely fits into the fitting part 11b is formed.A fitting part 11b having a dovetail groove is formed on the side surface of the fitting part 11b. A retaining edge 27 is formed.

The expansion joint 1 of the fourth embodiment constructed as described above operates in substantially the same manner as the first embodiment.

In each of the embodiments described above, the receiving portion 6 of the spring member 2 is formed into a substantially U-shape that opens upward;
Although the locking portion 12 of the cover member 11 that is locked to the receiving portion 6 is formed in an arrowhead shape, the shapes of the receiving portion 6 and the locking portion 12 are not limited, and for example, as shown in FIG. As shown in FIG.
is formed into an arrowhead shape, and the locking portion 1 of the cover member 11
2 may be formed into an inverted U shape. Furthermore, the locking portion 12 of the cover member 11 or the receiving portion 6 of the spring member 2 may be formed from a separate member and fixed to each member.

As described above, the present invention has mounting portions at both ends that span the frame surfaces of the frame bodies of both adjacent buildings and are immovably attached to predetermined positions on both frame surfaces, and The main body includes a substantially W-shaped spring member that elastically expands and contracts in response to fluctuations in the spring member, and a cover member that is engaged with a receiving portion formed at the top of the spring member and closes the gap between the two bodies. A locking portion is formed on the back surface of the cover member to lock with a locking portion of the spring member, and the spring member is further provided with a locking portion at a position where the locking portion is pulled outward by a predetermined amount. This is an expansion joint that is formed with a drawer locking part that locks and holds the drawer.

Therefore, the number of parts is small and the structure can be made extremely simple.

In addition, the cover member can be easily attached by attaching the locking part formed on the back side of the cover member to the receiving part formed on the top of the spring member. It is possible to successfully reduce costs.

In particular, when the cover member locking portion is to be locked to the receiving portion of the spring member, a drawer rod, a drawer member, etc. are engaged with the drawer locking portion of the spring member, and the spring member is The locking portion is pulled outward by a predetermined amount to the extent that the locking portion can be locked to the receiving portion, and the locking portion is held in the pulled-out position, thereby easily attaching the locking portion to the receiving portion. And it can be securely attached. Furthermore, by removing the drawer member from the drawer locking portion of the spring member, a spring force is generated in the spring member that tends to pull the catch portion back to its original position. That is, a spring force is generated in the spring member that attaches and attracts the cover member to both body surfaces, thereby preventing the cover member from floating up relative to both body body surfaces, thereby improving airtightness and watertightness.

[Brief explanation of the drawing]

The drawings show embodiments of the present invention; FIG. 1 is a sectional view showing an expansion joint of the first embodiment, FIG. 2 is a perspective view showing a spring member, and FIG. 3 is a perspective view showing a spring member.
Figures 4 and 4 are cross-sectional views showing the process of installing expansion joints on both body frames, Figure 5 is a cross-sectional view showing the expansion joint of the second embodiment, and Figure 6 is a cross-sectional view showing the expansion joint of the second embodiment. FIG. 7 is a sectional view showing the expansion joint of the fourth embodiment. FIG. 8 is a sectional view showing the expansion joint of the fourth embodiment. FIG. FIG. 1......expansion joint, 2...
Spring member, 3, 4...Mounting part, 6...Receiving part, 1
1... Cover member, 12... Locking part, K1, K2
...The body.

Claims (1)

[Scope of Claims] 1. It has attachment parts at both ends that straddle the frame surfaces of the frames of both adjacent buildings and are immovably attached to predetermined positions on both of these frame surfaces, and that Mainly composed of a substantially W-shaped spring member that elastically expands and contracts in a corresponding manner, and a cover member that is engaged with a receiving portion formed on the top of the spring member and closes the gap between the two skeletons, A locking portion that locks with the receiving portion of the spring member is formed on the back surface of the cover member, and a locking portion is formed on the spring member at a position where the receiving portion is pulled outward by a predetermined amount. An expansion joint characterized in that a drawer locking portion for holding the drawer is formed.