JPH06240772A - Joint cover - Google Patents

Abstract

PURPOSE:To secure the sealing property of a joint cover by preventing an outer cover member from floating up or disconnecting from both wall panels, while preventing deterioration of the fit of the joint cover in the space between both wall panels. CONSTITUTION:An outer cover member 11 is inserted into the space 2 between both wall panels 1 and has an integrated support leg 12 which has a locking protrusion 13 at its end portion and integrated seal lips 14 projected from both sides of the support leg. An inner holding member 21 is inserted into the space 2 and has a pair of opposite integrated leg pieces 25 between which is a locking groove 26 into which the locking protrusion 13 is fitted, and integrated elastic lips 29 projected from the outside faces of both leg pieces 25. An engagement portion 27 for the locking protrusion 13 is projected from the side wall face of the locking groove 26. At least either the locking protrusion 13 or the engagement portion 27 is formed from a synthetic resin, rubber or the like that contains a foaming agent so that when one of the members is inflated by foaming after the locking protrusion 13 is fitted into the locking groove 26, the locking protrusion 13 is securely locked in the engagement portion 27.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an outer cover member which is attached to a front surface side opening of a gap between adjacent two wall panels to close the gap, and an outer cover member which is attached to the inner side of the gap to hold the outer cover member. The present invention relates to a joint cover including an inner holding member that does.

[0002]

2. Description of the Related Art In a joint cover of this type, an outer cover member is inserted into a gap between both wall panels and has a support leg having a locking projection at its tip, and the outer cover member is projected from both side surfaces of the support leg. It has integrally with the sealing lip which contacts the opposite end surface of both wall panels.

The inner holding member is a pair of leg pieces that are inserted into the gap and face each other with a locking groove into which the locking projection is fitted, and a pair of leg pieces that project from the outer side surfaces of the two leg pieces. There is a structure in which an elastic lip that is in contact with the opposite end surfaces of the wall panel is integrally formed, and further, an engaging portion for the locking projection is provided to project on the side wall surface of the locking groove.

[0004]

By the way, in the joint cover constructed as described above, in order to secure the sealing property while preventing the outer cover member from rising and coming off from both wall panels, the following will be described. ) ~ (C) is possible.

(A) To increase the engaging force between the locking projection of the outer cover member and the locking portion of the locking groove of the inner holding member. (A) Alternatively, the wall thickness of the seal lip of the outer cover member is increased to enhance the elastic force based on the elastic deformation of the seal lip so as to make the end faces of the both wall panels elastic. (C) Alternatively, the thickness of the elastic lip of the inner holding member is increased to increase the elastic force based on the elastic deformation of the elastic lip so that the inner lip is pressed against the opposite end faces of the two wall panels.

However, if the engaging force between the locking projection and the locking portion of the locking groove is increased, it becomes difficult to fit the locking projection into the locking groove, and the outer cover with respect to the gap between the two wall panels. The mountability of the member and the inner holding member is deteriorated. Even when the elastic lip is increased by increasing the thickness of the seal lip or the elastic lip, it is difficult to fit the outer cover member and the inner holding member into the gap between the two wall panels to mount them.

In view of the above-mentioned problems, an object of the present invention is to prevent the outer cover member from rising and coming off from the both wall panels while preventing deterioration of the mountability with respect to the gap between the both wall panels and to improve the sealing property. It is to provide a joint cover that can be secured.

[0008]

In order to achieve the above object, the invention according to claim 1 is an outer cover member which is attached to a front surface side opening of a gap between adjacent two wall panels to close the gap. An inner holding member that is mounted on the inner side of the gap to hold the outer cover member, the outer cover member being a support leg that is inserted into the gap and has a locking projection at its tip, and both sides of the support leg. Integrally formed with a sealing lip projecting from the surface and contacting opposite end surfaces of the both wall panels, the inner holding member being opposed to each other with a locking groove inserted into the gap and into which the locking projection is fitted. And a pair of leg pieces, and elastic lips that project from the outer surfaces of the both leg pieces and contact the opposite end surfaces of the both wall panels, respectively. Stop protrusion An engaging portion is provided so as to protrude, and at least one of the engaging protrusion and the engaging portion is made of synthetic resin, rubber, or the like containing a foaming agent, and the engaging protrusion is engaged with the engaging protrusion. After being inserted into the groove, the one member is expanded and expanded, so that the locking projection and the engaging portion are prevented from coming off and engaged with each other.

According to the second aspect of the present invention, an outer cover member is attached to the front side opening of the gap between the two adjacent wall panels to close the gap, and an outer cover member is attached to the back side of the gap. And an inner holding member for holding the outer cover member, wherein the outer cover member is inserted into the gap and has a support leg having a locking projection at a tip end thereof, and the outer cover member projects from both side surfaces of the support leg and faces the both wall panels. A pair of leg pieces that integrally have a seal lip that is in contact with the end surface, and that the inner holding member is inserted into the gap and faces each other with a locking groove into which the locking projection is fitted, and a pair of leg pieces that are opposed to each other. Integrally formed with elastic lips protruding from the side surfaces and contacting opposite end surfaces of the both wall panels, and further, an engaging portion for the engaging projection is provided on the side wall surface of the engaging groove so as to project. Outer At least one of the seal lip of the bar member and the elastic lip of the inner holding member is made of synthetic resin or rubber containing a foaming agent, and the one member is fitted in the gap. After that, the lips of the same member are expanded and expanded, so that the lips are pressed against the opposite end faces of the both wall panels.

[0010]

In the joint cover according to claim 1, which is configured as described above, the inner holding member is fitted in the inner side of the gap between the two wall panels, the outer cover is fitted in the opening on the surface side of the gap, and the outer cover is fitted. The locking projection at the tip of the supporting leg of the member is fitted into the locking groove of the inner holding member.
At this time, since the engaging portion of the engaging projection or the engaging groove is in a state of foaming, the engaging projection easily passes through the engaging portion of the engaging groove and is fitted into the engaging groove. . Then, the engaging portion of the locking projection or the locking groove is expanded and expanded, and the locking projection and the engaging portion are retained and engaged. As a result, the deterioration of the mountability with respect to the gap between the two wall panels is eliminated, while the outer cover member is prevented from rising and coming off.

Further, in the joint cover according to a second aspect of the present invention, the inner holding member and the outer cover member are respectively fitted in the gaps between the panels in substantially the same manner as described above, and the locking projections of the outer cover member are locked by the inner holding member. After fitting into the locking groove through the engaging portion of the groove, the elastic lip of the inner holding member or the seal lip of the outer cover member is foamed and expanded, so that the joint cover is mounted.
In the mounted state of the joint cover, the elastic lip of the inner holding member expands and expands and presses against the end surfaces of the two wall panels to prevent the inner holding member from expanding and expanding. The engagement state with the mating portion is secured, and the outer cover member is prevented from rising and coming off. Also,
The seal lip of the outer cover member is expanded and expanded, and the seal lip strongly presses the end faces of the two wall panels with a large contact area to prevent the outer cover member from rising and coming off.

[0012]

【Example】

(Embodiment 1) Embodiment 1 of the present invention will be described with reference to FIGS. 1 to 3, the joint cover 10
Is mainly composed of an outer cover member 11 mounted on the front surface side opening of the gap 2 between the adjacent two wall panels 1 and an inner holding member 21 mounted on the back side of the gap 2.

The outer cover member 11 covers the support leg 12 inserted into the gap 2 from the front side of the gap 2 and having a locking projection 13 at the tip, and the front side end of the support leg 12. A seal lip 1 made of high-elasticity synthetic resin, rubber or the like protruding from both side surfaces of the support leg 12 and elastically deforming in close contact with the opposite end surfaces of both wall panels 1 in a curved shape.
4 and are integrally formed by extrusion. The support leg 12 is made of a hard synthetic resin except for the locking projection 13 at the tip thereof, and a cored bar 15 made of a flat strip metal plate such as a steel plate is inserted therein.

The locking projection 13 at the tip of the support leg 12 is formed of synthetic resin, rubber or the like containing a foaming agent, and is fitted into a locking groove 26 of an inner holding member 21 which will be described later. It is in a state of unexpanded foam (including unexpanded foam) and has a continuous wall thickness that is substantially flush with both side surfaces of the support leg 12.

Further, a metal wire 16 is inserted over the entire length of the outer cover member 11 substantially in the center of the locking projection 13, and both ends 16a of the wire 16 are shown in FIG.
As shown in FIG. 3, the outer cover member 11 is exposed by projecting a predetermined length from both end faces in the longitudinal direction. Then, a required voltage is applied to both ends 16a of the wire 16 and a current is applied to the wire 16, thereby
6 generates heat, and the locking projection 13 is foamed and expanded by the heat energy based on the heat generation.

The inner holding member 21 is the holding plate 2
2, a pair of leg pieces 25 and an elastic lip 29 are provided, and they are integrally extruded from highly elastic synthetic resin, rubber or the like. The holding plate 22 has rigidity by inserting a flat-belt-shaped cored bar 23 such as a steel plate, and is provided so as to close the back side opening between the both wall panels 1. Further, projecting pieces 24 that are elastically deformed and come into close contact with the back surfaces of the two wall panels 1 are formed at both ends of the holding plate 22 in the width direction.

A pair of leg pieces 2 are formed on one side surface of the holding plate 22 facing the back surfaces of both wall panels 1 with a locking groove 26 into which the locking projection 13 of the outer cover member 11 is fitted.
5 is projected. On the outer side surfaces of the pair of leg pieces 25, elastic lips 29 which project elastically into curved contact with the opposing end surfaces of the two wall panels 1 and are in close contact with each other.

Further, on the facing surfaces of the pair of leg pieces 25 forming the side wall surfaces of the locking groove 26, the locking portions 27 for the locking projections 13 are respectively projected near the opening end of the locking groove 26. There is.

The joint cover 10 of the first embodiment is constructed as described above. Therefore, when mounting the joint cover 10 in the gap 2 between the both wall panels 1, first, the inner holding member 2 is inserted into the inner side opening of the gap 2 between the both wall panels 1.
The leg pieces 25 of the inner holding member 21 are inserted into the gap 2 while the elastic lip 29 of No. 1 is elastically deformed into a curved shape. Then, the holding plate 22 of the inner holding member 21 is pushed to a position in which it comes into close contact with the back surfaces of the both-wall panels 1.

Next, as shown in FIG. 3, while the seal lip 14 of the outer cover member 11 is elastically deformed into a curved shape with respect to the opening on the front surface side of the gap 2, the support leg 12 of the outer cover member 11 causes the support leg 12 of the gap 2 to move. While being inserted into
The locking projection 13 at the tip of the support leg 12 is fitted into the locking groove 26 of the inner holding member 21.

At this time, since the locking projection 13 is in a foamed state, the locking projection 13 is engaged with the engaging portion 27 of the locking groove 26.
And is fitted into the locking groove 26.

As described above, the locking projection 13 is formed in the locking groove 2.
After being fitted into the locking projection 6, a required voltage is applied to both ends 16a of the wire 16 inserted in the locking projection 13. Then, as shown in FIG. 4, the foaming agent of the locking projection 13 is foamed by the thermal energy generated by the heat generation of the wire 16 and the locking projection 13 is expanded. This completes the mounting of the joint cover 10.

When the joint cover 10 is mounted, the locking protrusion 13 is expanded and expanded, so that the locking protrusion 1
Since 3 firmly engages with the engaging portion 27 of the locking groove 26, the outer cover member 11 is positively prevented from rising and coming off, and the sealing property is secured.

(Second Embodiment) Next, a second embodiment of the present invention will be described with reference to FIGS. In the second embodiment, the locking projection 13 at the tip of the support leg 12 of the outer cover member 11 is formed of a hard synthetic resin of the same material as the support leg 12 in a barbed cross section.

On the other hand, the engaging portion 27 projecting from the opposing surfaces of the pair of leg pieces 25 forming the side wall surface of the locking groove 26 of the inner holding member 21 is formed of synthetic resin, rubber or the like containing a foaming agent. Before the locking projection 13 is fitted, it is in a foamed state, and the protrusion amount from the facing surface of the leg piece 25 is set as small as possible. Furthermore, the engaging portion 27
A wire 28 for inserting and foaming the engaging portion 27 by heat generation by energization is inserted therein.

Since other parts and members are the same as those in the first embodiment, the same parts and members are designated by the same reference numerals and the description thereof will be omitted.

Therefore, also in the second embodiment, the inner holding member 21 is fitted from the rear side opening of the gap 2 between the both wall panels 1 in substantially the same manner as in the first embodiment. After that, the outer cover member 11 is fitted into the opening on the front surface side of the gap 2. As shown in FIG. 6, when the locking projection 13 at the tip of the support leg 12 of the outer cover member 11 is fitted into the locking groove 26 of the inner holding member 21, the locking groove 2
The engaging portion 27 of No. 6 is in a state of end foaming. Therefore, the locking projection 13 easily passes through the engaging portion 27 of the locking groove 26 and is fitted into the locking groove 26.

Thereafter, as shown in FIG. 7, the engaging portion 27 is foamed and expanded by energization and heat generation of the wire 28, so that the locking projection 13 and the engaging portion 27 are firmly engaged with each other, so that the outer cover member 11 is formed. The rise and disengagement of the will be positively prevented.

(Third Embodiment) Next, a third embodiment of the present invention will be described with reference to FIGS. In the third embodiment, the elastic lip 29 of the inner holding member 21 is made of synthetic resin, rubber or the like containing a foaming agent, and the elastic lip 29 has a wire 30 that expands and expands by elastic heat generation. Has been inserted.

Further, on the surface of the inner holding member 21 facing the leg piece 25, an engaging portion 27 is formed of synthetic resin, rubber or the like of the same material as the leg piece 25. Since other parts and members are the same as those in the second embodiment, the same parts and members are designated by the same reference numerals and the description thereof will be omitted.

Therefore, in the third embodiment, after the inner holding member 21 is fitted from the rear side opening of the gap 2 between the both wall panels 1, the outer cover member 11 is inserted from the front side opening of the gap 2. At the same time when is inserted, the locking projection 13 is fitted into the locking groove 26 through the engaging portion 27 of the locking groove 26. At this time, the pair of leg pieces 26 made of high-elasticity synthetic resin are elastically expanded in a direction in which they are expanded to each other, and when the locking projections 13 pass through the engaging portions 27, they are restored to the original state, thereby. The locking protrusion 13 and the engaging portion 27 are engaged with each other.

Thereafter, as shown in FIG. 10, the elastic lip 29 is foamed and expanded by the heat generation of the wire 30, so that the elastic lip 29 is strongly pressed against the opposite end faces of the both wall panels 1. Then, the reaction force based on the pressure contact of the elastic lip 29 acts on the leg piece 25, thereby preventing the leg piece 25 from expanding. As a result, the engagement force between the engagement portion 27 of the leg piece 25 and the locking projection 13 is increased, and the outer cover member 11
The rise and disengagement of the will be positively prevented.

(Fourth Embodiment) Next, a fourth embodiment of the present invention will be described with reference to FIGS. In the fourth embodiment, the seal lip 14 of the outer cover member 11
Is an outer layer 1 made of non-foamed, highly elastic synthetic resin, rubber, etc.
4a and an inner layer 14b made of synthetic resin, rubber or the like containing a foaming agent.
A wire 17 for foaming and expanding the inner layer 14b by energization and heat generation is inserted.

Since the other parts and members are almost the same as those in the third embodiment, the same parts and members are designated by the same reference numerals, and the description thereof will be omitted. However, in the fourth embodiment, unlike the third embodiment, the elastic lip 29 of the inner holding member 21 is made of synthetic resin, rubber or the like of the same material as the leg piece 25.

Therefore, in the fourth embodiment, as in the third embodiment, after the inner holding member 21 is fitted from the rear side opening of the gap 2 between the both wall panels 1,
At the same time as the outer cover member 11 is fitted through the opening on the surface side of the gap 2, the locking projection 13 is fitted into the locking groove 26 through the engaging portion 27 of the locking groove 26.

Thereafter, the inner layer 14b of the seal lip 14 is foamed and expanded by the heat generation of the wire 17,
The inner layer 14b strongly presses the opposite end faces of the two wall panels 1 with a large contact area.

That is, in the fourth embodiment, in addition to the engaging force between the locking projection 13 and the engaging portion 27, the both-wall panel 1
While the contact area of the inner layer 14b of the seal lip 14 is increased with respect to the end surface of the outer cover member 11, the outer cover member 11 is positively prevented from rising or coming off by being strongly pressed.

(Fifth Embodiment) Next, a fifth embodiment of the present invention will be described with reference to FIGS. 14 and 15. In the fifth embodiment, the elastic lip 29 of the inner holding member 21 is formed of synthetic resin, rubber or the like containing a foaming agent. Unlike the third embodiment, the elastic lip 29 is heated and foamed by the hot air from the outside, not by the heat generated by passing the heat of the wire.

Since other parts and members are the same as those in the third embodiment, the same parts and members are designated by the same reference numerals and the description thereof will be omitted.

Therefore, in the fifth embodiment, when the inner holding member 21 is fitted into the opening on the rear surface side of the gap 2 between the both wall panels 1, the elastic lip 29 is in a state of unexpanded foam. The fitability of the inner holding member 21 does not deteriorate. As shown in FIG. 14, after the inner holding member 21 is fitted in the gap 2, hot air is blown from the hot air generator to the elastic lip 29 of the inner holding member 21. As a result, as shown in FIG. 15, the elastic lip 29 is heated and foamed and expanded, so that the elastic lip 29 is firmly pressed against the opposing end surfaces of the two wall panels.

After that, the outer cover member 11 is fitted from the opening on the surface side of the gap 2, and the locking projection 13 thereof is fitted into the locking groove 26 through the engaging portion 27 of the locking groove 26. The mounting of the joint cover 10 is completed.

[0042]

As described above, according to the present invention,
It is possible to prevent the outer cover member from rising or coming off from the both wall panels while preventing deterioration of the mounting ability of the inner holding member or the outer cover member with respect to the gap between the both wall panels, and to prevent the outer cover from rising or coming off. Defects can be eliminated.

[Brief description of drawings]

FIG. 1 is a view showing a state in which an inner holding member and an outer cover member that constitute a joint cover according to a first embodiment of the present invention are separated.

FIG. 2 is a sectional view of the same.

FIG. 3 is a cross-sectional view showing a state in which an inner holding member and an outer cover member are respectively fitted in a gap between both wall panels.

FIG. 4 is a cross-sectional view showing a state in which a locking cover of the outer cover member is expanded and expanded and a joint cover is attached.

FIG. 5 is a cross-sectional view showing a state in which an inner holding member and an outer cover which form a joint cover of Embodiment 2 of the present invention are separated.

FIG. 6 is a cross-sectional view showing a state in which an inner holding member and an outer cover member are respectively fitted in the gaps between both wall panels.

FIG. 7 is a cross-sectional view showing a state where the joint portion of the inner holding member is foam-expanded and the joint cover is mounted.

FIG. 8 is a cross-sectional view showing a state in which an inner holding member and an outer cover member that form a joint cover of Embodiment 3 of the present invention are separated.

FIG. 9 is a cross-sectional view showing a state in which an inner holding member and an outer cover member are respectively fitted in the gaps between both wall panels.

FIG. 10 is a sectional view showing a state where the elastic lip of the inner holding member is expanded and expanded and the joint cover is attached.

FIG. 11 is a cross-sectional view showing a state in which an inner holding member and an outer cover member that form a joint cover of Embodiment 4 of the present invention are separated.

FIG. 12 is a sectional view showing a state in which an inner holding member and an outer cover member are fitted in the gaps between both wall panels.

FIG. 13 is a sectional view showing a state in which the joint cover is mounted by foaming and expanding the inner layer of the seal lip of the outer cover member.

FIG. 14 is a cross-sectional view showing a state in which an inner holding member of a joint cover according to a fifth embodiment of the present invention is fitted in a gap between both wall panels.

FIG. 15 is a sectional view showing a state where the elastic lip of the inner holding member is expanded and expanded.

[Explanation of symbols]

 1 Wall Panel 2 Gap 10 Joint Cover 11 Outer Cover Member 12 Support Leg 13 Locking Protrusion 14 Seal Lip 21 Inner Holding Member 25 Leg Piece 26 Locking Groove 27 Engaging Part 29 Elastic Lip

Claims (2)

[Claims] 1. An outer cover member that is mounted on a front surface side opening of a gap between adjacent two wall panels to close the gap, and an inner holding member that is mounted on a back side of the gap to hold the outer cover member. The outer cover member includes a support leg that is inserted into the gap and has a locking projection at a tip portion, and a seal lip that protrudes from both side surfaces of the support leg and is in contact with opposite end surfaces of the both wall panels. A pair of leg pieces that are integrally provided and that face each other with a locking groove that is inserted into the gap and into which the locking protrusion is fitted, and that are respectively protruded from outer side surfaces of the two leg pieces. An elastic lip that contacts the opposite end surfaces of the both wall panels is integrally formed, and an engaging portion for the locking projection is provided on the side wall surface of the locking groove so as to project from the locking projection and the engagement. Out of department At least one of the members is formed of a synthetic resin containing a foaming agent, rubber, or the like, and after the locking projection is fitted into the locking groove, the one member is expanded and expanded, A joint cover, wherein the stop projection and the engaging portion are configured to be retained and engaged with each other. 2. An outer cover member that is attached to a front surface side opening of a gap between adjacent two wall panels to close the gap, and an inner holding member that is attached to a back side of the gap to hold the outer cover member. The outer cover member includes a support leg that is inserted into the gap and has a locking projection at a tip portion, and a seal lip that protrudes from both side surfaces of the support leg and is in contact with opposite end surfaces of the both wall panels. A pair of leg pieces that are integrally provided and that face each other with a locking groove that is inserted into the gap and into which the locking protrusion is fitted, and that are respectively protruded from outer side surfaces of the two leg pieces. An elastic lip that contacts the opposite end surfaces of both wall panels is integrally formed, and a side wall surface of the locking groove is provided with an engaging portion for the locking projection, and the seal lid of the outer cover member is provided. Of the elastic lips of the inner holding member and the inner holding member, at least one of the lips is formed of a synthetic resin containing a foaming agent, rubber, or the like. The joint cover is characterized in that the lip of the member is expanded and expanded so that the lip comes into pressure contact with the opposite end faces of the both wall panels.