JPH06185129A - Joint cover - Google Patents

Abstract

PURPOSE:To enhance the sealing and retaining performances while the stickiness for the gap between adjoining wall panels is prevented from deterioration. CONSTITUTION:A joint cover is consolidatedly equipped with a covering body 11 to block the gap between adjoining wall panels 1, a supporting leg 16 protruding at the back of the covering body 11 and inserted in the gap, and a pair of lips 21 which protrude toward the mating end faces of the two wall panels 1 from the side faces of the supporting leg 16 and contact these end faces 2 resiliently. At least the foremost parts of the lips 21 are made of plastic, rubber, etc., containing a foaming agent, which is heated and foamed after the leg is fitted in the gap, and thereby the lips 21 are expanded and contacted resiliently with the mating end faces 2 of the wall panels 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint cover which is mounted in a gap between adjacent wall panels to close the gap.

[0002]

2. Description of the Related Art Conventionally, for example, an actual flatbed 2 is used for a joint cover.
-58508, Japanese Utility Model Publication No. 59-6986, etc., a support leg inserted into a gap between adjacent wall panels, and a relative position of the both wall panels from both side surfaces of the support leg. There is known a structure which is provided with a pair of lip pieces which are projected toward the end faces and which contact these end faces.

[0003]

By the way, as described above, in the joint cover integrally provided with the support leg and the pair of lip pieces, in order to enhance the sealing property and the holding force with respect to the gap between the wall panels, There is a need to increase the protruding length of the pair of lip pieces from both sides of the support leg and increase the wall thickness of these lip pieces to enhance the elastic force due to the elastic deformation of the pair of lip pieces. However, as described above, when the elastic force of the pair of lip pieces is increased, it is difficult to fit the lip pieces into the gap between the adjacent wall panels while elastically deforming, and the mountability deteriorates.

In view of the above-mentioned conventional problems, an object of the present invention is to provide a joint cover capable of enhancing the sealing property and the holding force while preventing the deterioration of the mounting property with respect to the gap between the adjacent wall panels. That is.

[0005]

In order to achieve the above-mentioned object, the invention according to claim 1 is characterized in that a supporting leg inserted into a gap between adjacent wall panels, and both walls from both side surfaces of the supporting leg. A joint cover that is integrally provided with a pair of lip pieces that are in contact with the opposite end surfaces of the panel and that are in contact with these end surfaces, wherein at least the tip portions of the pair of lip pieces are synthetic resin containing a foaming agent. After the leg portion is fitted into the gap and made of rubber or the like, the foaming agent of the lip pieces of the pair is heated and foamed, so that the lips of the pair are expanded and the opposite end faces of the both wall panels are expanded. It is configured to make contact with each other. Further, according to the invention of claim 2, a metal wire for generating heat when a required electric current is applied and foaming the foaming agent of the pair of lip pieces is inserted into the pair of lip pieces.

[0006]

In the joint cover according to claim 1 constructed as described above, after the pair of lip pieces are elastically deformed and fitted into the gap between the adjacent wall panels, the pair of lip pieces are foamed. The agent is heat-foamed and the lip pieces are expanded. This increases the pressure force of the lip pieces against the end faces of adjacent wall panels. Further, in the joint cover according to claim 2, a current is passed through the metal wire inserted in the pair of lip pieces, and the wire generates heat, so that the foaming agent of the pair of lip pieces is efficiently heated and foamed. .

[0007]

【Example】

(Embodiment 1) Hereinafter, Embodiment 1 of the present invention will be described with reference to FIGS. In the perspective view of FIG. 1 and the sectional view of FIG.
Is a cover body 12, a support leg 16, and a pair of lip pieces 2
1 and 1 are integrally formed by extrusion molding of synthetic resin, rubber or the like.

The cover body 12 closes a gap S between the two wall panels 1 adjacent to each other, and a support leg 16 inserted into the gap S between the both wall panels 1 hangs down from the central portion of the back surface in the width direction. It is protrudingly shaped. The support leg 16 is made of hard synthetic resin, and a core metal 17 made of a flat strip metal plate such as a stainless steel plate is inserted into the support leg 16.

A pair of lip pieces 21 project toward the opposite end surfaces 2 of the two wall panels 1 at the lower portions of both side surfaces of the support leg 16. The pair of lip pieces 21 are made of synthetic resin containing a foaming agent, rubber, or the like,
Before the pair of lip pieces 21 is fitted into the gap S together with the support portion 16, the lip pieces 21 are in an unfoamed state (including semi-foaming), and the protruding lengths of both lip pieces 21 from both side surfaces of the support leg 16 and The wall thickness is set to the minimum necessary. That is, when the support leg 16 is fitted into the gap S while elastically deforming the lip piece 21, the joint cover 11 can be temporarily fixed by the elastic force of the lip piece 21 so that both lip pieces can be temporarily fixed. The protruding length and wall thickness of 21 are set.

Further, in the first embodiment, as shown in FIG. 2, the lip piece 2 is inserted into the gap S between the wall panels 1.
The cover body 12 is elastically deformed and pressed into contact with the cover body 12 in substantially the same manner as 1, so that the cover body 12 has an outer layer 13 made of a non-foaming soft synthetic resin and an inner layer 14 made of a synthetic resin or rubber containing a foaming agent. 3 is formed into a two-layer structure, and before mounting as shown in FIG. 3, the inner layer 14 is also in a non-foamed state like the both lip pieces 21, and the thickness thereof is set to the minimum necessary.

The pair of lips 21 and the cover body 12
The metal wire 22 is inserted into the inner layer 14 of the joint over the entire length of the joint cover 11. These wires 22
As shown in FIG. 1, the respective end portions 22a and 22b are exposed by projecting a predetermined length from both longitudinal end surfaces of the joint cover 11. And both ends 2 of each wire 22
A required voltage is applied to 2a and 22b, and each wire 2
When a current is applied to 2, each wire 22 generates heat,
The lip piece 2 is heated by the heat energy based on the heat generation.
1 and the foaming agent of the inner layer 14 are foamed, and these lip pieces 2
1 and inner layer 14 are adapted to be inflated as shown in FIG.

The first embodiment is constructed as described above. Therefore, as shown in FIG. 3, before the joint cover 11 is mounted in the gap S between the two wall panels 1, the lip piece 21 and the inner layer 14 of the cover body 12 are in an unfoamed state. Therefore, by pushing the joint cover 11 with a relatively small pushing force with respect to the gap S, the lip piece 21 and the cover body 12 are elastically deformed lightly, and as shown in FIG. The joint cover 11 is easily fitted to the position. And at this fitting position,
The joint cover 11 is temporarily fixed by the frictional force generated between the tip ends of the lip piece 21 and the cover body 12 and the end surface 2 of the wall panel 1.

Here, both ends 22a, 2 of each wire 22 are
The required voltage is applied to 2b. Then, a required current is applied to each wire 22, which causes each wire 2
2 heats up. Then, the foaming agent of the lip piece 21 and the inner layer 14 of the cover body 12 is foamed by the thermal energy generated by the heat generation of each wire 22. Then, as shown in FIG. 2, the lip piece 21 and the inner layer 14 are formed by the foaming action of the foaming agent.
Expand, and the tip ends of the lip piece 21 and the inner layer 14 strongly press against the end face 2 of the wall panel 1, whereby the mounting of the joint cover 11 is completed.

As described above, when the joint cover 11 is attached, the lip pieces 21 and the inner layer 4 are strongly pressed against the end surface 2 of the wall panel 1 by the expansion of the lip pieces 21 and the inner layer 4, and the lip surface 21 and the inner layer 14 are pressed against the end surface 2. Since the contact area is also increased, the sealing property and the holding force are improved. Therefore, even if there is a variation in the gap S between the adjacent wall panels 1, sufficient sealing performance and holding power can be obtained.

In the joint cover 11 of the first embodiment, when the joint cover 11 has a long total length, as shown in FIG. 5, a total of four protrusions are projected from both ends in the longitudinal direction of the joint cover 11.
Of the two wires 22, one end 22a of each of the two wires 22 may be connected to each other, and a required voltage may be applied to each of the other ends 22b to heat each wire 22 by heating.

(Second Embodiment) Next, a second embodiment of the present invention will be described with reference to FIGS. In this embodiment, the main body of the cover body 112 and the support leg 116, which form the joint cover 111, has a substantially T-shaped metal core bar 117 in cross section.
Is formed by. The cover body 112 is composed of an upper side portion 117a of the core metal 117 and an outer covering layer 113 made of synthetic resin and covering the upper side portion 117a.
In addition, the support leg 116 is provided with the hanging portion 117b of the core metal 117,
It is configured by a lip layer 121 which covers both side surfaces of the hanging side portion 117b and a covering layer 118 which is made of the same material as the lip piece 121 and is made of the same material such as rubber.

A pair of lip pieces 121 are projected toward the end faces 2 of the two wall panels 1 in a downwardly inclined manner at the lower portions of both side surfaces of the support leg 116. A locking portion 121a that engages with a rear side corner portion of the end surface 2 of the both-wall panel 1 is formed in a notch shape.

The pair of lip pieces 121 are made of synthetic resin, rubber or the like containing a foaming agent, and as shown in FIG. Before the piece 121 is inserted,
Similar to the first embodiment, the support leg 11 is in an unfoamed state.
The projecting length and the wall thickness of both lip pieces 121 from both side surfaces of 6 are set to the necessary minimum.

That is, in the second embodiment, as shown in FIG.
As shown in FIG. 6, the support portion 16 is elastically deformed in the gap S between the two wall panels 1 until the back surface of the cover body 112 contacts the outer surface of the both wall panels 1.
When engaging with each other, the lip pieces 121 are engaged with the rear side corners of the end faces 2 of the two wall panels 1 with an engaging force enough to temporarily fix the joint cover 111 by the locking portions 121a. The protruding length and wall thickness of 121 are set to the minimum necessary.

Further, metal wires 122 are inserted into the pair of lip pieces 121 in substantially the same manner as in the first embodiment, and both ends of these wires 122 are joint cover 1.
Each of the end faces 11 is exposed by projecting a predetermined length from both end faces in the longitudinal direction.

The joint cover 111 according to the second embodiment is constructed as described above. Therefore, as shown in FIG.
Before the joint cover 111 is mounted in the gap S between the both wall panels 1, the lip piece 121 is in a non-foamed state. Therefore, by pushing the joint cover 111 with a relatively small pushing force with respect to the gap S, the lip piece 121 is elastically deformed lightly. As a result, the joint cover 111 is easily fitted to a predetermined position where the back surface of the cover body 112 abuts on the outer surfaces of the two wall panels 1. Then, at this fitting position, the engaging portion 112 at the tip of the lip piece 121.
By engaging a with the back side corner of the end surface 2 of the wall panel 1,
The joint cover 111 is temporarily fixed.

Here, a required voltage is applied to both ends of each wire 122. Then, the foaming agent of the lip piece 121 is foamed by the thermal energy based on the heat generation of each wire 122, and the foaming action causes the foaming of the lip piece 121.
Expand, and these lip pieces 121 cause the end face 2 of the wall panel 1 to
The corners on the inner side of the joint are strongly pressed and engaged with each other, whereby the mounting of the joint cover 111 is completed.

Therefore, also in the second embodiment, the sealing performance and the holding power are enhanced, and the sealing performance and the holding power are sufficiently obtained even if the gap S between the adjacent wall panels 1 is varied. .

(Third Embodiment) Next, a third embodiment of the present invention will be described with reference to FIGS. The third embodiment is a modification of the first embodiment. That is, as shown in FIG. 9 to FIG. 11, a pair of lip pieces 21 respectively projecting from lower portions of both side surfaces of the support leg 16 toward opposite end surfaces of the both wall panels 1 are two layers of an outer layer 21A and an inner layer 21B. Formed into a structure.

Further, the outer layer 21A of the pair of lip pieces 21 is made of non-foaming soft synthetic resin / rubber or the like, while the inner layer 21B is made of synthetic resin / rubber or the like containing a foaming agent. A metal wire 22 is provided near the tip.
Has been inserted.

The cover body 12 is made of a non-foaming soft synthetic resin, rubber or the like made of the same material as the outer layer 21A of the lip piece 21 without inserting a metal wire.
Since other parts are the same as those in the first embodiment, the same parts are designated by the same reference numerals, and the description thereof will be omitted.

(Fourth Embodiment) Next, a fourth embodiment of the present invention will be described with reference to FIGS. The fourth embodiment is a modification of the third embodiment. That is, FIG.
~ As shown in FIG. 14, the tip portions 2 of the pair of lip pieces 21
Only 1C is made of synthetic resin / rubber or the like containing a foaming agent, and non-foaming soft synthetic resin / rubber or the like except for the tip portion 21C of the lip piece 21. Furthermore, a metal wire 22 is inserted in the central portion of the tip portions 21C of the pair of lip pieces 21. The other part is the third embodiment.
Therefore, the same parts are designated by the same reference numerals, and the description thereof will be omitted.

(Fifth Embodiment) Next, a fifth embodiment of the present invention will be described with reference to FIGS. The fifth embodiment is a modification of the second embodiment. That is, FIG.
As shown in FIG. 17, only the tip portions 121A of the pair of lip pieces 121 are formed of a synthetic resin containing a foaming agent, rubber or the like, and the non-foaming soft synthetic resin other than the tip portions of the lip pieces 121. It is made of rubber or the like. Furthermore, the metal wire 1 is attached to the tip portion 121A of the lip piece 121.
22 is inserted. Other parts are in Example 2
Therefore, the same parts are designated by the same reference numerals, and the description thereof will be omitted.

In the above-mentioned Examples 1 to 5,
The foaming agent contained in the lip piece is heated and foamed based on the heat generated by the electric current of the metal wire inserted in the pair of lip pieces, but the invention is not limited to this. The blowing agent contained in the lip piece may be foamed by blowing hot air from the above.

[0030]

As described above, according to the first aspect of the invention, the pair of lip pieces are fitted into the gap between the adjacent wall panels while being elastically deformed, and then the pair of lip pieces are inserted. It is possible to increase the pressure contact force of the lip piece against the end face of the adjacent wall panel by foaming and expanding. For this reason, it is possible to enhance the sealing property and the holding force while preventing the deterioration of the mountability in the gap between the adjacent wall panels. Further, according to the invention of claim 2, the pair of lip pieces can be efficiently heated and foam-expanded on the basis of the thermal energy of the energization heat generation of the metal wire inserted in the pair of lip pieces. Foaming defects can be prevented.

[Brief description of drawings]

FIG. 1 is a perspective view showing a joint cover according to a first embodiment of the present invention.

FIG. 2 is a sectional view showing a state in which a joint cover is similarly mounted between both wall panels.

FIG. 3 is a cross-sectional view showing a state before a joint cover is similarly fitted between both wall panels.

FIG. 4 is a sectional view showing a state in which a joint cover is fitted and inserted to a predetermined position between both wall panels.

FIG. 5 is a perspective view showing a state in which one end of each wire of the joint cover is also connected.

FIG. 6 is a cross-sectional view showing a state in which a joint cover according to the second embodiment of the present invention is mounted between both wall panels.

FIG. 7 is a cross-sectional view showing a state before a joint cover is similarly fitted between both wall panels.

FIG. 8 is a sectional view showing a state in which a joint cover is fitted and inserted to a predetermined position between both wall panels.

FIG. 9 is a sectional view showing a joint cover of Embodiment 3 of the present invention.

FIG. 10 is a sectional view showing a state in which the joint cover is fitted and inserted to a predetermined position between both wall panels.

FIG. 11 is a sectional view showing a state in which a joint cover is mounted between both wall panels.

FIG. 12 is a sectional view showing a joint cover according to a fourth embodiment of the present invention.

FIG. 13 is a sectional view showing a state where the joint cover is fitted and inserted to a predetermined position between both wall panels.

FIG. 14 is a sectional view showing a state in which a joint cover is also mounted between both wall panels.

FIG. 15 is a sectional view showing a joint cover according to the fifth embodiment of the present invention.

FIG. 16 is a sectional view showing a state in which a joint cover is fitted and inserted to a predetermined position between both wall panels.

FIG. 17 is a sectional view showing a state where a joint cover is mounted between both wall panels.

[Explanation of reference symbols] 1 wall panel 2 end face 11,111 joint cover 16,116 support leg 21,121 lip piece 22,122 wire

Claims (2)

[Claims] 1. A support leg inserted into a gap between adjacent wall panels, and a pair of lip pieces protruding from both side surfaces of the support leg toward opposite end faces of the both wall panels and contacting these end faces. Is a joint cover integrally provided with, wherein at least tip portions of the pair of lip pieces are made of synthetic resin, rubber or the like containing a foaming agent, and after the legs are fitted into the gap, A joint cover, characterized in that when the foaming agent of the pair of lip pieces is foamed by heating, the pair of lips are expanded and are in elastic contact with the opposite end faces of the both wall panels. 2. The joint cover according to claim 1, wherein a metal wire that generates heat when a required current is applied and foams the foaming agent of the pair of lip pieces is inserted into the pair of lip pieces. A characteristic joint cover.