JPH06136844A - Joint gasket - Google Patents

Abstract

PURPOSE:To absorb uneven steps even if they occur in both edges of a joint to minimize distortions of the whole gasket and to provide the joint gasket not spoiling an outward appearance. CONSTITUTION:Gasket 1 is equipped with a leg 2, a sealing compound 3 and a shaft section 4 connecting the leg 2 to the sealing compound 3. Contact projecting pieces 7 formed of a slightly thin elastic body falling toward the surfaces of both edges of the joint are provided to both sides of the sealing compound 3, and pressure-welding of the end edges of the projecting pieces to the surfaces of both edges of the joint is made. The section of the sealing compound 3 is formed in a circular arch shape. When uneven steps occur in both edges of the joint, the uneven steps are absorbed by deforming the contact projecting pieces 7 flexibly, and no deformation largely influenced to the whole gasket occurs. As the sealing compound has a circular section, even if the sealing compound 3 is inclined by the uneven steps on both edges of the joint, it is in a state to rotate the circular surface, so that inclination is inconspicuous from appearance, and the appearance is not greatly spoiled accordingly.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gasket which is press-fitted and installed between joints in order to seal joints formed on a connection portion of an outer wall of a building.

[0002]

2. Description of the Related Art Conventionally, as a gasket which is press-fitted between joints to be mounted, for example, one described in Japanese Utility Model Publication No. 52-3843 is known. This gasket is made of an elastic material and is mounted by pressing the center leg of the main body, which has a T-shaped cross section, between the joints. It is configured to touch.

[0003]

In the above-mentioned conventional gasket, since the entire lower surface of the cover piece that spreads over the upper surface is uniformly in contact with the surfaces of both edges of the joint, if a step occurs at both edges of the joint, There is a problem in that this cannot be absorbed, and the entire gasket cover is distorted and the appearance is impaired. Further, when the joint is bent in the extending direction, the flexible gasket bends following the bending, which also impairs the appearance.

Therefore, according to the present invention, even if a step is generated on both edges of the joint, the step is absorbed to minimize the distortion of the entire gasket cover piece and to prevent the appearance of the joint gasket from being deteriorated. It is an object to provide an inter-joint gasket having the function of providing the above-mentioned function and minimizing the bending of the joint in the extension direction and not impairing the appearance.

[0005]

In the present invention, in order to solve the above-mentioned problems, a leg portion press-fitted between joints, a sealing portion which spreads so as to contact surfaces of both edges of the joint, and a leg portion. In a long joint-to-joint gasket having a shaft portion connecting the sealing portion, contact protrusions made of elastic bodies descending toward the surfaces of both edges of the joint are provided on both sides of the sealing portion. The edges of the joint were pressed against the surfaces of both joint edges.

Further, the entire gasket as described above is molded with an elastic body, and the cross section of the sealing portion is formed in an arc shape.

Further, the sealing portion is composed of an elastic body and a metal wedge body, and contact protrusions are provided on both sides of the body extending to the surface sides of both edges of the joint, and the wedge body is provided in the center. The wedge body extends along the surface of the main body, and the wedge part that extends along the surface of the main body and ends on both sides inside the end edge of the main body and the wedge that extends downward from the center of this umbrella part. And the wedge portion is press-fitted into the groove of the main body so that both side edges of the main body are curved downward in cooperation with the umbrella portion.

[0008]

In the inter-joint gasket of the present invention, the end edges of the contact protrusions made of an elastic body are pressed against the surfaces of both edges of the joint when being attached to the joint. Therefore, when a step is formed on both edges of the joint, the contact protrusion is flexibly deformed to absorb the step, and the entire gasket is not largely deformed. Therefore, the appearance is not significantly impaired.

When the entire gasket is formed of an elastic material and the sealing portion has a circular arc-shaped cross section, in addition to the above action of the contact protrusion, the sealing portion has a circular arc-shaped cross section. Even if the sealing portion inclines at the steps of both edges, the arc surface is rotated, so the inclination is not noticeable in appearance, and therefore the appearance is not significantly impaired.

When the sealing portion is composed of an elastic body and a metal wedge body, the rigidity of the metal wedge body contributes to the extension of the gasket in addition to the above action of the contact projection. Prevents small bends, keeps the joints straight in appearance and improves appearance.

[0011]

Embodiments of the present invention will be described with reference to the drawings.
1 is a perspective view of a gasket according to an embodiment of the present invention with a part thereof cut away, FIG. 2 is a sectional view of a gasket according to an embodiment of the present invention, and FIG. 3 is a gasket according to an embodiment of the present invention. 4 is a sectional view of a gasket according to another embodiment of the present invention, and FIG. 6 is a sectional view of the gasket according to another embodiment of the present invention. It is sectional drawing of the usage state in the step part of the gasket which concerns on the other Example of this invention.

1 to 4, the gasket 1
Is a long member made of an elastic synthetic resin, which is press-fitted into the joint gap G, the sealing portion 3 that spreads to the surface side of both edges of the joint, and connects the leg portion 2 and the sealing portion 3. And a shaft portion 4.

The upper surface 5 of the sealing portion 3 has a substantially arcuate arc-shaped cross section, and a cavity 6 extending in the axial direction is formed therein. Contact protrusions 7 that descend toward the surfaces S of both edges of the joint in the mounted state are formed on both side edges of the sealing portion 3.

In the inter-joint gasket 1 of this embodiment, only the end edges of the contact projections 7 made of an elastic body are pressed against the surfaces S of both edges of the joint when the gasket 1 is attached to the joint.
Therefore, when a step is formed on both edges of the joint, the contact protrusion 7 is flexibly deformed to absorb the step, and the entire gasket is not largely deformed. Therefore, the appearance is not significantly impaired. Further, since the upper surface 5 of the sealing portion 3 is formed in an arcuate cross-section, as shown in FIG. 4, even if the sealing portion 3 is inclined at the step on both edges of the joint, the arc surface is rotated. Therefore, the inclination is not noticeable in appearance, and therefore the appearance is not significantly impaired.

A gasket 11 of another embodiment shown in FIGS. 5 and 6 is a leg portion 12 which is likewise press-fitted into the joint G, a sealing portion 13 which spreads to the surface side of both edges of the joint, and the leg portion 12. And a shaft portion 14 connecting the sealing portion 13 with the sealing portion 13.

The sealing portion 13 is composed of an elastic body 15 and a metal wedge body 16. The main body 15 extends toward the surface S of both edges of the joint, has contact protrusions 17 on both sides, and has a groove 1 for press-fitting the wedge body 15 in the center.
Have eight. The contact protrusion 17 is slightly thin, and is inclined so as to descend obliquely toward the surfaces S at both edges of the joint when the contact protrusion 17 is attached to the joint G. Further, on the upper surface of the main body 15, a stepped portion 19 that receives both side edges of the wedge body 16 described later.
Is equipped with.

The wedge body 16 includes an umbrella portion 20 and a wedge portion 2.
1 and. The umbrella portion 20 spreads along the surface of the main body 15, and both side end edges are terminated inside the end edge of the main body 15. The wedge portion 21 extends downward from the center of the umbrella portion 20, and in a state of being press-fitted into the groove 18 of the main body 15, pushes the groove 18 to the left and right, and cooperates with the umbrella portion 20 to open the main body 15. The contact protrusion 17 is bent downward and pushed down.

In the inter-joint gasket 11 of this embodiment, when there is a step on both edges of the joint, the main body 15 is pushed by the wedge body 16 and fully extends to be pressed against the surfaces S of both edges. When steps occur on both edges of the joint, the contact protrusions 17 are flexibly deformed to absorb the steps, and only the edges of the contact protrusions 17 contact the surface S of the joint. For this reason, a large deformation of the entire gasket does not occur. Therefore,
It does not significantly damage the appearance. Further, the rigidity of the metal wedge body 16 prevents undulation due to a small bending in the extension direction of the gasket 11, keeps the joint street linear in appearance, and improves the appearance.

Naturally, the present invention is not limited to the above embodiments, and various design changes and the like made within the scope of the present invention are also included in the scope of the present invention. . For example, the sealing portion 3 in the gasket 1
The upper surface 5 may be smooth as long as it has an arc shape, regardless of its specific shape.

[0020]

As described above, in the present invention, the leg portion press-fitted between the joints, the sealing portion that spreads so as to contact the surfaces of both edges of the joint, and the leg portion and the sealing portion are connected to each other. In a long joint gasket having a shaft portion, contact protrusions made of an elastic body descending toward the surfaces of both edges of the joint are provided on both sides of the sealing portion, and the end edges of the protrusions are Since it is configured to be pressed against the surfaces of both edges, it is possible to
Only the edges of the contact protrusions made of an elastic body are pressed against the surfaces of both edges of the joint. Therefore, when a step is formed on both edges of the joint, the contact protrusion is flexibly deformed to absorb the step, and the entire gasket is not largely deformed.
Therefore, there is an effect that the appearance is not significantly impaired.

Further, since the entire gasket as described above is integrally molded with an elastic body and the cross section of the sealing portion is formed in an arc shape, even if the sealing portion is inclined due to the step at both edges of the joint, the arc surface is Since it has a rotated shape, it has an effect that the inclination is not conspicuous in appearance and therefore the appearance is not significantly impaired.

Further, the sealing portion is composed of an elastic body and a metal wedge body, contact protrusions are provided on both sides of the body extending to the surface sides of both edges of the joint, and the wedge body is provided in the center. The wedge body extends along the surface of the main body, and the wedge part that extends along the surface of the main body and ends on both sides inside the end edge of the main body and the wedge that extends downward from the center of this umbrella part. Since the wedge portion is press-fitted into the groove of the main body, both side edges of the main body are curved downward in cooperation with the umbrella portion, so that the rigidity of the metal wedge body is improved. As a result, it is possible to prevent undulation due to small bending in the extension direction of the gasket, keep the joint street straight in appearance, and improve the appearance.

[Brief description of drawings]

FIG. 1 is a perspective view in which a part of a gasket according to an embodiment of the present invention is cut away.

FIG. 2 is a sectional view of a gasket according to an embodiment of the present invention.

FIG. 3 is a cross-sectional view of a gasket in use according to an embodiment of the present invention.

FIG. 4 is a cross-sectional view showing a usage state of a step portion of a gasket according to an embodiment of the present invention.

FIG. 5 is a sectional view of a gasket according to another embodiment of the present invention.

FIG. 6 is a cross-sectional view of a gasket in use according to another embodiment of the present invention at a stepped portion.

[Explanation of symbols]

 1 gasket 2 leg part 3 sealing part 4 shaft part 5 upper surface 7 contact projection piece 11 gasket 12 leg part 13 sealing part 14 shaft part 15 sealing part body 16 wedge body 17 contact projecting piece 18 groove 20 umbrella part 21 wedge part

Claims (3)

[Claims] 1. A length having a leg portion press-fitted between joints, a sealing portion that spreads so that at least a portion thereof contacts surfaces of both edges of the joint, and a shaft portion connecting the leg portion and the sealing portion. An inter-joint gasket, in which the sealing portion has, on both sides, contact protrusions made of an elastic body that descend toward the surfaces of both edges of the joint in the mounted state. 2. The whole is formed of an elastic body, and the sealing portion is formed in an arc shape in cross section.
Gasket between joints described in. 3. The sealing portion is composed of an elastic body and a metal wedge body, the body extending to the surface sides of both edges of the joint, and having the contact protrusions on both sides, There is a groove for press-fitting the wedge body in the center, the wedge body spreads along the surface of the main body, and an umbrella portion whose both end edges end inside the edge of the main body, and the center of the umbrella portion. A wedge portion extending downward from the main body, and in a state where the wedge portion is press-fitted into the groove of the main body, in cooperation with the umbrella portion, both side edges of the main body are curved downward. The inter-joint gasket according to claim 1, which is configured.