JP2922381B2 - Joint cover - Google Patents

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 mounted on a surface side opening of a gap between adjacent two wall panels to close the gap, and which is mounted on a back side of the gap to hold the outer cover member. And a joint cover having an inner holding member.

[0002]

2. Description of the Related Art In a joint cover of this kind, an outer cover member is inserted into a gap between both wall panels and has a support projection having a locking projection at a tip portion. A sealing lip which is in contact with opposing end surfaces of both wall panels;

[0003] The inner holding member is inserted into the gap and opposed to each other via a locking groove into which the locking projection is fitted. There is a structure in which an elastic lip that is in contact with the opposite end face of the wall panel is integrally formed, and further, an engaging portion for the locking projection is protruded from a side wall surface of the locking groove.

[0004]

By the way, in the joint cover configured as described above, the following will be described in order to secure the sealing performance while preventing the outer cover member from floating or coming off from both wall panels (A). ) To (c) are conceivable.

(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 thickness of the seal lip of the outer cover member is increased to increase the elastic force based on the elastic deformation of the seal lip so that the opposing end surfaces of the both wall panels are elastic. (C) Alternatively, the thickness of the elastic lip of the inner holding member is increased to increase the resilience based on the elastic deformation of the elastic lip so that the elastic lip is brought into pressure contact with the opposite end faces of the both 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 is closed to the gap between both wall panels. The mountability of the member and the inner holding member is deteriorated. Even when the resilience is increased by increasing the thickness of the seal lip or the elastic lip, it is difficult to fit the outer cover member or the inner holding member into the gap between the two wall panels.

SUMMARY OF THE INVENTION In view of the above-mentioned problems, an object of the present invention is to prevent the outer cover member from floating or coming off from the both wall panels while preventing the mounting property from being deteriorated in the gap between the two wall panels, thereby improving the sealing performance. It is to provide a joint cover that can be secured.

[0008]

According to one aspect of the present invention, there is provided an outer cover member which is attached to a surface side opening of a gap between adjacent two wall panels to close the gap. An inner holding member attached to a back side of the gap to hold the outer cover member, wherein the outer cover member is inserted into the gap and has a locking projection at a distal end; and both sides of the supporting leg A seal lip protruding from the surface and in contact with opposed end surfaces of the two wall panels, and the inner holding member is opposed to the inner holding member via a locking groove inserted into the gap and into which the locking protrusion is fitted. A pair of leg pieces, and an elastic lip protruding from the outer surface of each of the two leg pieces and being in contact with the opposite end face of the both wall panels. Stop projection An engagement portion is provided so as to protrude, and at least one of the engagement protrusion and the engagement portion is formed of synthetic resin, rubber, or the like containing a foaming agent. After being inserted into the groove, the one of the members is foamed and expanded, so that the locking projection and the engaging portion are prevented from coming off and engaged.

Further, the invention according to claim 2 is an outer cover member mounted on a front opening of a gap between adjacent two wall panels to close the gap, and the outer cover member mounted on a back side of the gap. The outer cover member is inserted into the gap and has a locking projection at a distal end thereof, and the outer cover member protrudes from both side surfaces of the support leg and faces the two wall panels. A seal lip that is in contact with an end face, the inner holding member is inserted into the gap, and a pair of leg pieces facing each other across a locking groove into which the locking protrusion is fitted; An elastic lip integrally protruding from the side surface and in contact with the opposite end surfaces of the both wall panels, and further, an engaging portion for the locking projection is protruded on a side wall surface of the locking groove, Outer At least one of the seal lip of the bar member and the elastic lip of the inner holding member is formed of synthetic resin, rubber, or the like containing a foaming agent, and the one member is fitted into the gap. Thereafter, the lip of the same member is foamed and expanded so that the lip is pressed against the opposing end faces of the both wall panels.

[0010]

The joint cover according to claim 1, wherein an inner holding member is fitted into the inner side of the gap between the two wall panels, an outer cover is fitted into a surface side opening of the gap, and the outer cover is attached to the outer cover. The locking projection at the tip of the support leg of the member is fitted into the locking groove of the inner holding member.
At this time, since the engaging portion of the locking projection or the locking groove is in a foam state, the locking projection easily passes through the engaging portion of the locking groove and is fitted into the locking groove. . Thereafter, the engaging portion of the locking projection or the locking groove is foamed and expanded, and the locking projection and the engaging portion are prevented from coming off and engaged. As a result, while the deterioration of the mounting property with respect to the gap between the both wall panels is eliminated, the outer cover member is prevented from rising and coming off.

In the joint cover according to the second aspect, the inner holding member and the outer cover member are respectively fitted into the gap between the panels in substantially the same manner as described above, and the locking projection of the outer cover member engages with the locking member of the inner holding member. After being fitted into the locking groove through the engaging portion of the groove, the joint cover is mounted by foaming and expanding the elastic lip of the inner holding member or the seal lip of the outer cover member.
In a state where the joint cover is mounted, the elastic lip of the inner holding member is foamed and expanded and pressed against the end faces of both wall panels, thereby preventing the inner holding member from expanding and expanding. Engagement with the mating portion is ensured, and lifting and detachment of the outer cover member are prevented. Also,
The seal lip of the outer cover member is foamed and expanded, and the seal lip is strongly pressed against the end surfaces of both wall panels with a large contact area, thereby preventing the outer cover member from floating or coming off.

[0012]

【Example】

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

The outer cover member 11 is inserted into the gap 2 from the surface side of the gap 2 and has a support leg 12 having a locking projection 13 at a tip end thereof, and covers an end of the support leg 12 on the surface side. A seal lip 1 made of a highly elastic synthetic resin, rubber, or the like, which protrudes from both side surfaces of the support leg 12 and is elastically deformed in a curved shape and closely adheres to opposing end surfaces of the two wall panels 1.
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 distal end thereof, and has a metal core 15 made of a flat metal plate such as a steel plate inserted therein.

The locking projection 13 at the tip of the support leg 12 is made of synthetic resin, rubber, or the like containing a foaming agent, and is inserted into a locking groove 26 of an inner holding member 21 which will be described later. It is in a foam state (including a foam state) and has a substantially continuous thickness on both sides of the support leg 12.

Further, a metal wire 16 is inserted into the substantially central portion of the locking projection 13 over the entire length of the outer cover member 11, and both ends 16a of the wire 16 are connected to each other as shown in FIG.
As shown in FIG. 5, the outer cover member 11 is exposed to project by a predetermined length from both end surfaces in the longitudinal direction. Then, a required voltage is applied to both ends 16 a of the wire 16, and a current is supplied to the wire 16.
6 generates heat, and the locking projections 13 are foamed and expanded by thermal energy based on the generated heat.

The inner holding member 21 is provided on the holding plate 2.
2. It is provided with a pair of leg pieces 25 and an elastic lip 29, and is integrally extruded from a highly elastic synthetic resin or rubber. The holding plate 22 has rigidity by being inserted with a flat strip-shaped metal core 23 such as a steel plate, and is provided so as to close the back opening between the two wall panels 1. At both ends in the width direction of the holding plate 22, projecting pieces 24 which are elastically deformed and come into close contact with the back surface of the both wall panels 1 are formed.

A pair of leg pieces 2 is formed on one side surface of the holding plate 22 facing the back surface of both wall panels 1 with a locking groove 26 into which the locking projection 13 of the outer cover member 11 is inserted.
5 are projected. On the outer surfaces of the pair of leg pieces 25, there are provided elastic lips 29 which are elastically deformed in a curved shape and closely contact with the opposite end surfaces of the both wall panels 1.

Further, on the opposing surfaces of the pair of leg pieces 25 forming the side wall surfaces of the locking groove 26, locking portions 27 for the locking projections 13 project near the opening ends of the locking groove 26, respectively. I have.

The joint cover 10 according to the first embodiment is configured as described above. Therefore, when attaching the joint cover 10 to the gap 2 between the two wall panels 1, first, the inner holding member 2 is attached to the back opening of the gap 2 between the both wall panels 1.
The leg 25 of the inner holding member 21 is inserted into the gap 2 while the one elastic lip 29 is elastically deformed in a curved shape. Then, the holding plate 22 of the inner holding member 21 is pushed to a position where the holding plate 22 comes into close contact with the back surface 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 in a curved shape with respect to the opening on the surface side of the gap 2, the support legs 12 of the outer cover member 11 And inserted into
The locking projection 13 at the tip of the support leg 12 is inserted 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.
Easily fits into the locking groove 26.

As described above, the locking projection 13 is
After the wire 16 is inserted into the wire 6, a required voltage is applied to both ends 16 a of the wire 16 inserted into the locking projection 13. Then, as shown in FIG. 4, the foaming agent of the locking projections 13 is foamed by thermal energy based on the heat generated by the conduction of the wire 16, and the locking projections 13 are expanded. Thus, the mounting of the joint cover 10 is completed.

When the joint cover 10 is mounted, the locking projections 13 are expanded by foaming and expansion of the locking projections 13.
Since the engaging member 3 is firmly engaged 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.

(Embodiment 2) Next, Embodiment 2 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 so as to have an arrowhead cross section.

On the other hand, the engaging portion 27 protruding 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 engagement projection 13 is fitted, the projection is in a foamed state, and the amount of protrusion of the leg piece 25 from the facing surface is set as small as possible. Further, the engaging portion 27
Is inserted with a wire 28 for foaming and expanding the engaging portion 27 by heat generation.

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

Therefore, also in the second embodiment, the inner holding member 21 is fitted into the gap 2 between the two wall panels 1 from the back side opening in substantially the same manner as in the first embodiment. Thereafter, the outer cover member 11 is fitted into the opening on the 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 inserted 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 foam state. For this reason, the locking projection 13 easily passes through the engaging portion 27 of the locking groove 26 and is fitted into the locking groove 26.

After that, as shown in FIG. 7, the engaging portion 27 is foamed and expanded by the heat generated by the conduction of the wire 28, so that the locking projection 13 and the engaging portion 27 are firmly engaged with each other. Floating and detachment are 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 formed of a synthetic resin or rubber containing a foaming agent, and the elastic lip 29 is provided with a wire 30 for expanding and expanding the elastic lip 29 by energizing heat. Is inserted.

On the surface of the inner holding member 21 facing the leg 25, an engaging portion 27 is formed of the same material as the leg 25, such as synthetic resin or rubber. The other parts and members are the same as those of the second embodiment, and thus the same parts and members are denoted by the same reference characters and description thereof is omitted.

Therefore, in the third embodiment, after the inner holding member 21 is fitted through the opening on the back side of the gap 2 between the two wall panels 1, the outer cover member 11 is inserted through the opening on the surface side of the gap 2. At the same time, 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 a highly elastic synthetic resin is elastically expanded once in the direction in which they expand, and is restored to the original state when the locking projection 13 passes through the engaging portion 27. The locking projection 13 and the engaging portion 27 are engaged.

Thereafter, as shown in FIG. 10, the elastic lip 29 is foamed and expanded by the heat generated by the electric current flowing through the wire 30, so that the elastic lip 29 is strongly pressed against the opposing end faces of the two-wall panel 1. Then, a 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 engaging force between the engaging portion 27 of the leg piece 25 and the locking projection 13 is increased, and the outer cover member 11
Floating and detachment are positively prevented.

(Embodiment 4) Next, Embodiment 4 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 used.
Is an outer layer 1 made of non-foamed and highly elastic synthetic resin, rubber, etc.
4a and an inner layer 14b made of a synthetic resin, rubber, or the like containing a foaming agent.
A wire 17 is inserted to expand and expand the inner layer 14b by energizing and generating heat.

The other parts and members are almost the same as those in the third embodiment, and the same parts and members are denoted by the same reference characters and their description is omitted. However, in the fourth embodiment, unlike the third embodiment, the elastic lip 29 of the inner holding member 21 is formed of the same material as the leg piece 25, such as synthetic resin or rubber.

Therefore, in the fourth embodiment, after the inner holding member 21 is fitted into the gap 2 between the two wall panels 1 from the back side opening in substantially the same manner as the third embodiment.
At the same time as the outer cover member 11 is fitted from 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 generated by the conduction of the wire 17, and
The inner layer 14b strongly presses the opposing 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 double-wall panel 1
The outer cover member 11 is positively prevented from rising and coming off by being strongly pressed while increasing the contact area of the inner layer 14b of the seal lip 14 with the end face of the outer lip 14.

Fifth Embodiment Next, a fifth embodiment of the present invention will be described with reference to FIGS. In the fifth embodiment, the elastic lip 29 of the inner holding member 21 is formed of a synthetic resin or rubber containing a foaming agent. Unlike the third embodiment, the elastic lip 29 is heated and foamed by hot air from the outside without being caused by heat passing through the wire.

Since the other parts and members are the same as those in the third embodiment, the same parts and members are denoted by the same reference characters and their description is omitted.

Therefore, in the fifth embodiment, when the inner holding member 21 is fitted into the opening on the back side of the gap 2 between the two wall panels 1, the elastic lip 29 is in a foam state. The fit of the inner holding member 21 does not deteriorate. As shown in FIG. 14, after the inner holding member 21 is fitted into 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 faces of both wall panels.

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

[0042]

As described above, according to the present invention,
While preventing the inner holding member and the outer cover member from being attached to the gap between the two wall panels from being deteriorated, the outer cover member can be prevented from rising and coming off from the both wall panels, and the sealing due to the rising and falling of the outer cover can be prevented. Defects can be eliminated.

[Brief description of the drawings]

FIG. 1 is a diagram showing a state in which an inner holding member and an outer cover member constituting 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 fitted into gaps between both wall panels.

FIG. 4 is a cross-sectional view showing a state where the joint protrusion is mounted by foaming and expanding the locking projection of the outer cover member.

FIG. 5 is a cross-sectional view showing a state in which an inner holding member and an outer cover constituting a joint cover according to a second embodiment 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 fitted in gaps between both wall panels.

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

FIG. 8 is a cross-sectional view showing a state where an inner holding member and an outer cover member constituting a joint cover according to 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 fitted into gaps between both wall panels, respectively.

FIG. 10 is a cross-sectional view showing a state in which an elastic lip of the inner holding member is foamed and expanded and a joint cover is attached.

FIG. 11 is a cross-sectional view showing a state where an inner holding member and an outer cover member constituting a joint cover according to a fourth embodiment of the present invention are separated.

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

FIG. 13 is a cross-sectional view showing a state in which the inner layer of the seal lip of the outer cover member is foamed and expanded, and the joint cover is mounted.

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

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

[Explanation of symbols]

 Reference Signs List 1 wall panel 2 gap 10 joint cover 11 outer cover member 12 support leg 13 locking projection 14 seal lip 21 inner holding member 25 leg piece 26 locking groove 27 engaging portion 29 elastic lip

Continuation of the front page (56) References JP-A-55-114750 (JP, A) JP-A-2-11908 (JP, U) JP-A-62-47613 (JP, U) JP-A-2-121504 (JP) , U) Hikaru Hei 1-126405 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) E04B 1/62 -1/72

Claims (2)

(57) [Claims] An outer cover member attached to a front surface opening of a gap between adjacent two wall panels to close the gap, and an inner holding member attached to a back side of the gap to hold the outer cover member. The outer cover member includes a support leg inserted into the gap and having a locking projection at a distal end, and a seal lip protruding from both side surfaces of the support leg and in contact with opposing end surfaces of the both wall panels. The inner holding member is inserted into the gap, and a pair of leg pieces facing each other across a locking groove into which the locking projection is fitted. An elastic lip that is in contact with opposite end surfaces of both wall panels is integrally formed, and further, an engaging portion for the locking projection is protruded from a side wall surface of the locking groove, and the locking projection is engaged with the engagement. Out of the department At least one member is formed of synthetic resin, rubber, or the like containing a foaming agent, and after the locking projection is inserted into the locking groove, the one member is foamed and expanded. A joint cover, wherein the stop projection and the engaging portion are configured to be prevented from being engaged with each other. 2. An outer cover member attached to a front opening of a gap between adjacent two wall panels to close the gap, and an inner holding member attached to a back side of the gap to hold the outer cover member. The outer cover member includes a support leg inserted into the gap and having a locking projection at a distal end, and a seal lip protruding from both side surfaces of the support leg and in contact with opposing end surfaces of the both wall panels. The inner holding member is inserted into the gap, and a pair of leg pieces facing each other across a locking groove into which the locking projection is fitted. An elastic lip which is in contact with opposite end surfaces of both wall panels, and an engaging portion with the engaging projection is provided on a side wall surface of the engaging groove to protrude, and a seal lip of the outer cover member is provided. And at least one of the elastic lips of the inner holding member is formed of a synthetic resin or rubber containing a foaming agent, and after the one member is fitted into the gap, the same lip is formed. The joint cover is characterized in that the lip of the member is foamed and expanded so that the lip is pressed against the opposite end faces of the both wall panels.