JPH0324545B2 - - Google Patents

Description

[Detailed Description of the Invention] (Technical Field) This invention relates to the construction of both frames of corner sections of two adjacent buildings, for example, walls and walls of corner sections, walls and ceilings, floors and walls, walls and roofs, etc. Earthquakes, ground subsidence, building expansion,
This invention relates to an expansion joint that can cope with fluctuations due to contraction and the like.

(Prior Art) Conventionally, a pair of fixing members are disposed on the body surfaces of both body parts, and both ends of a spring member for holding the cover member are engaged with these fixing members. be. In this case, when there is a large fluctuation in both the frame members, there have been cases where the spring member comes off from the fixed member.

(Object of the Invention) In view of the above-mentioned conventional problems, an object of the present invention is to fix both ends of the spring member without disposing a fixing member on the body surfaces of both body parts, thereby preventing the spring member from detaching. Expansion that can solve this problem, and even when there are large fluctuations in both frames, the cover member can be held well in response to this, improving airtightness, watertightness, etc. It is to provide a joint point.

(Structure of the Invention) In order to achieve the above object, the present invention straddles the frame surfaces of both the frame bodies of the corner parts of both adjacent buildings and is fixed immovably at predetermined positions on both frame surfaces. a spring member that has mounting portions at both ends and elastically expands and contracts in response to fluctuations in both body frames; an elastically deformable substrate member that is attracted and movably disposed on one attachment portion and has a cover locking portion at one end; and a locking portion that is hooked to the cover locking portion of the substrate member on one side. and a cover member having an engaging edge on the other side that is engaged with a cover engaging part provided on the other attachment part of the spring member, and closing the gap between the two bodies. The configuration is as follows.

(Function of the Invention) In the expansion joint configured as described above, even when there is a large fluctuation in both the body parts, both the spring member and the base member can be elastically deformed in response to this fluctuation. For both bodies,
The cover member moves smoothly (tilting, sliding, etc.).

Furthermore, when mounting the cover member, the engagement portion on one side of the cover member is engaged with the cover engagement portion of the base plate member, and the engagement edge on the other side of the cover member is attached to the attachment portion on the other side of the spring member. This can be easily done by engaging the cover engaging part provided in the section.

Embodiment 1 In FIGS. 1 and 2 showing Embodiment 1 of the present invention, an extract connecting the frames K1 and K2 of two adjacent buildings (wall-to-wall, wall-to-ceiling, or floor-to-wall at an entrance corner) is shown. Pansion joint 1 is shown. This joint 1 is mainly composed of a spring member 2, a base member 16, and a cover member 22.

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 deforms (expands, contracts, twists, etc.) in response to fluctuations in both the skeletons K1 and K2. Above the board member 16
A receiving portion 6 is formed for engaging the. Further, a holding part 9 is formed at the base of one of the mounting parts 3 of the spring member 2 to tiltably hold the base end (the left end in FIG. A joint 10 is formed. In this first embodiment, as shown in FIG. 1 and FIG. , 2b, the upper portions of the opposing inner plate portions are fixed 11 in the shape of palms together by rivets, screws, spot welding, etc. to form an integral body. And both spring plate parts 2
At the upper end of the joint between a and 2b, a receiving part 6 for securing the board member 16 is formed in a substantially U-shape with an upward opening.
a is formed. A top portion 5 is formed at the lower end of the joint between both spring plates 2a and 2b via a rounded surface,
Leg pieces 2c and 2d extend from the ends of the folded portions of both troughs 7 and 8 that are continuous with the lower end of the top portion 5, respectively. Mounting parts 3 and 4 are formed at the tips of both leg pieces 2c and 2d along both body surfaces K1a and K2a, and are fixed by screws 12 and 13, etc., and these mounting parts 3 and 4 are connected to the ribs 3a and 2d. 4a etc., the rigidity is increased. Also, at the base of one of the mounting parts 3 and 4, a horizontal U-shaped holding part 9 that tiltably holds the base end of the board member 16 is provided.
is formed, and retaining claws 9a are formed on both sides of the opening of this holding portion 9. Furthermore, a hook-shaped cover engaging portion 10 that engages with one side of the cover member 22 is formed at the tip of the attachment portion 3 . Furthermore, the position of the receiving portion 6 of the spring member 2 before the board member 16 is attached is located a predetermined amount further inward (lower) than when the board member 16 is attached.
Thereby, a spring force is set in the spring member 2 that urges the cover member 22 toward the other body surface K2a via the base plate member 16. Furthermore, when the spring member 2 elastically deforms and expands and contracts, the curvature of the top 5 or both troughs 8 and 9 of the spring member 2 is set to be small in order to set a small amount of movement of the top 5 in the internal and external directions (vertical direction). The radius is actively formed to be large, and bent portions 2e and 2f where stress is concentrated are formed between both valley portions 7 and 8 and both leg pieces 2c and 2d,
As a result, the cover member 2 against the main body surface K2a
2 is intended to prevent it from floating.

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 with both ends sandwiched therebetween. 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.

The base plate member 16 is formed of an elastically deformable flat band-shaped spring material, and has a first locking portion 17 in the shape of an arrowhead or the like that is locked to the receiving portion 6 of the spring member 2 at a predetermined position on its lower surface. ing. Furthermore, the substrate member 16
A second locking portion 18 in the shape of an arrowhead or the like is formed at the base end (left end in FIG. 1) of the spring member 2 to be tiltably fitted into the holding portion 9 formed on the spring member 2. Also,
A cover locking portion 19 for locking the other side of the cover member 22 is formed at the tip of the substrate member 16 in a downwardly inclined shape. Furthermore, when the cover member 22 is pushed toward the cover locking part 19 of the board member 16 and the cover member 22 is locked by the locking part 19, the tip of the board member 16 is pressed against the other body surface K.
2a, the other body surface K2 is attached to the tip of the substrate member 16.
A deflection prevention piece 20 is formed which abuts at right angles to the mounting portion 4 of the spring member 2.

The cover member 22 that closes the gap S between the two skeletons K1 and K2 is formed by extrusion molding of aluminum alloy, bending of a metal plate, etc.
It is formed into a substantially L-shaped cross section along the lines a and K2a. The other side (horizontal side) 22A of this cover member 22
A locking portion 23 having a locking surface 23a that locks with the cover locking portion 19 of the base plate member 16 is formed on the back surface of the board member 16, and a gasket 24 that is in close contact with the other body surface K2a is formed at the tip of the other side 22A. A fitting portion 22a having a dovetail groove for fitting is formed. Note that a locking portion 23 that locks with the cover locking portion 19 may be formed on the inner surface of the fitting portion 22a.

A fitting part 22b having a dovetail groove for fitting the gasket 25 that is in close contact with one body surface K1a is formed at the tip of one side 22B of the cover member 22, and a spring member 2 is formed on the side surface of this fitting part 22b. An engagement edge 26 is formed that engageably faces the cover engagement portion 10 formed at the tip of the attachment portion 3 .

In the first embodiment configured as described above,
When the two main bodies K1 and K2 are moved, the spring member 2 is elastically deformed in response to the movement, expanding, contracting, or twisting, while the base member 16 is tilting or elastically deforming using the holding portion 9 of the spring member 2 as a fulcrum. Tetawamu. The cover member 22 has one side engaged with the cover engaging portion 10 of the spring member 2,
Since the other side of the board member 16 is fixed to the cover locking portion 19 of the base plate member 16, it moves smoothly (tilting, sliding, etc.) with respect to both body surfaces K1a and K2a, so the cover member 22 is prevented from being deformed or damaged. is prevented.
Furthermore, since both the mounting parts 3 and 4 of the spring member 2 are fixed to both the body surfaces K1a and K2a, even when the fluctuations of both the body bodies K1 and K2 are large, the spring member 2 is prevented from leaving.

Example 2 Next, in FIG. 3 showing Example 2 of this invention, the frames (walls, roofs, etc.) of both adjacent buildings K1,
Expansion joint 1 connecting K2 is shown. In this joint 1, the spring member 2 and the substrate member 16 disposed astride the body surfaces K1a, K2a of both the body bodies K1, K2 are substantially the same as those in the first embodiment. However, in this embodiment 2, the cover locking part 19 formed at the tip of the substrate member 16 faces the outer surface K2b of the other frame (roof, etc.) K2 with a predetermined gap in between, and the upper end The opposing gap is formed in an inclined shape that gradually widens from the top to the bottom end.

The cover member 22 that closes the gap S between the two skeletons K1 and K2 is attached to the bottom surface (horizontal side) 22A of the other skeleton (roof, etc.) K2 on the body surface (top surface) K2a.
A fitting part 22a having a dovetail groove for fitting the gasket 24 in close contact with the gasket 24 is formed, and the other side 22A has a side edge facing the outer surface K2b of the other frame K2 with a predetermined gap at the tip. 22c is formed. A locking portion 23 having a locking surface 23a that locks with the cover locking portion 19 of the substrate member 16 is formed at the lower end of this side edge 22c. Further, a fitting portion 22b for the packing 25 is provided at the tip end of one side 22B of the cover member 22 in the same manner as in the first embodiment.
and an engaging edge 26 corresponding to the cover engaging portion 10 of the spring member 2 are formed.

Note that the water stop plate 15 is arranged in the same manner as in the first embodiment.

The second embodiment configured 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, and the first locking portion 1 of the base plate member 16 that is secured to the receiving portion 6 is
7 is formed in the shape of an arrowhead, but as shown in FIG. 4, the receiving part 6 of the spring member 2 is formed in the shape of an arrowhead,
The first locking portion 17 of the substrate member 16 may be formed in an inverted U shape. Further, as shown in the figure, the holding part 9 formed on one attachment part 3 of the spring member 2 is formed in an arrowhead shape, and the second locking part 18 formed at the base end of the base plate member 16 is oriented horizontally. It may also be formed into a U-shape. Furthermore, the receiving part 6 of the spring member 2, the holding part 9,
The first and second locking portions 17 and 18 of the substrate member 16 may be formed as separate members and fixed to the respective members 2 and 16, respectively.

Further, in the above embodiment, the base plate member 16 was attached to the spring member 2 by engaging the receiving portion 6 and the locking portion 17, but as shown in FIG.
Base member 16 may be attached to spring member 2 by screws 28 and nuts 29.

Further, as shown in FIG. 6, a substantially U-shaped cover locking portion 19 for locking the cover member 22 may be formed at the tip of the base plate member 16. moreover,
As shown in FIG.
6 may be formed with an inverted V-shaped cover locking portion 19 for locking the cover member 22.

Further, the spring member 2 is not limited to a substantially W-shape; for example, the spring member 2 may be formed into a substantially U-shape,
Attachment parts 3 and 4 may be formed at both ends of the U-shape, and a receiving part 6 for the board member 16 may be formed at the center of the U-shape.

(Effects of the Invention) As described above, according to the present invention, even when the fluctuations in both the building blocks are large, both the spring member and the base plate member can be elastically deformed in response to the fluctuation, so that both the building blocks can be On the other hand, the cover member can move smoothly (tilt, slide, etc.), and damage to the cover member can be further prevented, unlike the case where the cover member is held only by a spring member.

Furthermore, when mounting the cover member, the engagement portion on one side of the cover member is engaged with the cover engagement portion of the base plate member, and the engagement edge on the other side of the cover member is attached to the other attachment portion of the spring member. This can be easily done by engaging the cover engaging part provided in the section, and it is also possible to improve the rain cover and the appearance.

Moreover, according to this invention, unlike the conventional method, it is possible to eliminate the need to provide fixing members for the spring members on both body surfaces, and to fix the mounting portions at both ends of the spring members in an immovable manner. Even when there are large fluctuations in both the frameworks, it is possible to prevent the spring member from separating from the frameworks. Therefore, the cover member can be held securely at all times to improve air-tightness and water-tightness, and the structure can be simplified to reduce manufacturing and implementation costs.

[Brief explanation of the drawing]

The drawings show embodiments of the present invention; FIG. 1 is a sectional view showing the expansion joint of Embodiment 1, FIG. 2 is a perspective view showing a state in which the spring member and the base member are separated, and FIG. 3 is a sectional view showing the expansion joint of Example 2, and FIG. 4 is a side view showing a modified example of the receiving part of the spring member, the holding part, and both the first and second locking parts of the base plate member. Figures 5 and 5 are side views showing an embodiment in which a spring member and a board member are connected by bolts and nuts, and Figures 6 and 7 are sectional views showing modified examples of the cover locking portion of the board member, respectively. It is. DESCRIPTION OF SYMBOLS 1... Expansion joint, 2... Spring member, 3, 4... Mounting part, 10... Cover engaging part, 16... Board member, 19... Cover locking part,
22... Cover member, 23... Engaging portion, 26...
Engagement edge.

Claims (1)

[Scope of Claims] 1. It has mounting portions at both ends that straddle the frame surfaces of both frame bodies of the corner portions of both adjacent buildings and are immovably attached to predetermined positions on both frame surfaces, and a spring member that elastically expands and contracts in response to fluctuations in the building frame; and a spring member that is provided approximately in the center of the front surface side of the spring member and that is pulled onto one attachment portion of the spring member by the spring force of the spring member. an elastically deformable substrate member that is movably arranged and has a cover locking portion at one end; a locking portion that locks to the cover locking portion of the substrate member on one side; and the spring on the other side. An expansion characterized by comprising: a cover member that has an engaging edge that is engaged with a cover engaging portion provided on the other mounting portion of the member and that closes the gap between the two skeletons. Joint.