JPH0740588Y2 - Joint material - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint material for finishing joints on wall surfaces, decorative edges of doors, decorative three-sided frames, decorative edges of deformed curtain boards on ceilings, and the like.

[0002]

2. Description of the Related Art For example, in the interior of a wall surface, a joint material is attached to and covers the joint portion formed between the interior plates to improve aesthetics and decorativeness.

Further, in a door, a decorative three-sided frame, a deformed curtain plate which is an ups and downs of a ceiling, etc., an annular groove or the like is provided on the surface, and the groove is filled with a joint material so as to provide decorativeness. Has been done.

Conventionally, the joint material used for the above-mentioned purpose is formed by using brass, and is attached by driving nails projecting on the back surface in advance to the wall surface, door, decorative three-sided frame, and curtain plate. It was.

[0005]

The joint material made of brass is heavy in weight and inconvenient to carry it to the site, and it is costly.

The surface of brass changes its color over time,
Since the decorativeness is deteriorated and the weight is heavy, there is a risk that it will fall off when it is used in a portion such as a door that receives an impact.

Further, a rounded portion is often provided on the door, the decorative three-sided frame, and the decorative edge of the modified curtain plate, and it is extremely difficult to accurately bend the joint material so as to follow the rounded shape. There is a problem that a beautiful finish cannot be obtained.

In order to solve the above problems, it is an object of the present invention to provide a joint material which is light in weight, excellent in mounting strength, and capable of finishing a curved portion beautifully.

[0009]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention is directed to a joint material main body formed of a synthetic resin in a desired cross-sectional shape and the positions of both sides of the rear surface of the joint material main body. In addition, the contradictory outer surfaces spread out backward .
A mounting portion forms cormorants communication, connecting the two mounting portions between both side mount portions
And an elastic connecting portion provided so that the elastic connecting portion
Is a central cylindrical portion that can be deformed and has restoring elasticity.
It is formed by the cylindrical part and the connecting wall that connects the mounting parts on both sides.
It adopts the structure that has .

[0010]

[Action] bullet so as to reduce press the joint material body from both sides
The cylindrical part of the joint is deformed, the mounting parts on both sides are fitted into the recessed groove provided on the wall surface or door, and the joint material body is pressed and contracted with both back sides of the joint material body overlapping the wall surface and door. solving, two mounting portions becomes spread shape in <br/> restore the elasticity of the cylindrical portion of the joint member main body and the elastic connecting portion, collision elastic connecting portion between the mounting portion
It becomes tight and can be firmly fixed to the wall and door, and the joint material body returns to its original shape to decorate the wall and door.

Further, since the joint material main body is made of synthetic resin, it has flexibility, and the rounded portion such as the door or the decorative edge of the decorative three-sided frame can be finished beautifully.

[0012]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

A joint material 1 of the first embodiment shown in FIGS. 1 and 2.
Is a joint material main body 2 whose surface is a decorative portion, mounting portions 3 and 3 provided on both sides of the rear surface of the jointing material body 2, and an elastic connection portion 4 provided between both mounting portions 3 and 3. And each part is integrally molded by extrusion molding using various flexible synthetic resins to form a long strip.

The joint material main body 2 is formed in a substantially semi-circular cross-sectional shape, and the pair of mounting portions 3 and 3 provided on both sides of the rear surface of the joint material main body 2 are formed from both side edges of the joint material main body 2. Also protrudes rearward from a position slightly closer to the inner side, and the opposite outer surfaces spread backward, and the pair of mounting portions 3 and 3 form a dovetail.

Elastic connecting portion 4 provided between both mounting portions 3 and 3.
Is composed of a central cylindrical portion 5 and connecting walls 6, 6 connecting the cylindrical portion 5 and the root sides of the mounting portions 3 and 3 on both sides, and the cylindrical portion 5 can be deformed into an elliptical shape by compression from both sides. Becomes

The first embodiment of the joint material of the present invention has the above-mentioned construction, and in order to attach the joint material 1 to the wall surface 7 or the door, the wall surface 7 is provided with a dovetail groove 8 in advance. , Figure 1
As shown by the arrow, the joint material main body 2 is compressed from both sides, and the elliptical deformation of the cylindrical portion 5 causes the two mounting portions 3 and 3 to approach each other. insert.

When the joint material main body 2 is uncompressed in this state, the cylindrical portion 5 of the connecting portion 4 and the joint material main body 2 are restored by the elasticity of the synthetic resin, and as shown in FIG. Is expanded and crimped to both sides of the dovetail groove 8, so that the joint material 1 is fixed to the wall surface 7.

A pushing and expanding force due to the restoration of the cylindrical portion 5 in the connecting portion 4 is constantly applied to the mounting portions 3 and 3 on both sides, and the expanding and pressing contact is made with respect to the inside of the dovetail groove 8. The fixed state can be maintained.

Next, the joint material of the second embodiment shown in FIGS. 3 to 5 will be described.

The jointing material body 2 of the jointing material 1 in the second embodiment has a wide band shape and is provided with an arcuate bulging portion 11 toward the front side in the central portion, and the elastic connecting portion 4 is provided on the inner surface of the bulging portion 11. The pushing protrusion 12 is formed in a cross-sectional shape.

The elastic connecting portion 4 includes a central cylindrical portion 13 and an inversion wall 1 connecting the cylindrical portion 13 and the mounting portions 3 and 3 on both sides.
As shown in FIG. 3, the inversion walls 14 and 14 are formed in an arc shape that bulges toward the joint material main body 2, and the cylindrical portion 13 is brought close to the pushing projection 12 and is attached. It is located closer to the joint material main body 2 than the rear surfaces of the parts 3 and 3.

This connecting portion 4 is pushed rearward so that
As shown in FIG. 4, the two inverting walls 14, 14 are inverted to a shape that bulges rearward, the cylindrical portion 13 is displaced rearward, and the mounting portions 3 and 3 are pushed and held in a spread manner. , Both mounting parts 3,
It is intended to prevent the inward movement of 3 and improve and maintain the mounting strength.

The cross-sectional shape of the joint material main body 2 is not limited to the one shown in the figure, and a desired cross-sectional shape may be adopted according to the place of installation and the intended use, and the connecting portion 4 is also inverted and displaced by pushing. The structure and the cross-sectional shape can be arbitrarily selected as long as the protruding function is generated between the mounting portions 3 on both sides.

Further, in any of the embodiments, the joint material main body 2 may have the same color as the synthetic resin material, but for example, a coating layer of gold or silver may be provided on the surface thereof to improve the decorativeness. Good.

Since the joint material 1 of the second embodiment has the above-mentioned construction and is a long product extruded using a flexible synthetic resin, it can be rolled into the whole and carried into the site. it can.

The joint groove formed in the wall surface 7 or the door for attaching the joint material 1 is shown in the dovetail groove 8 shown in the right half of FIGS. 3 and 4, and in the left half of FIG. 3 and FIG. As described above, it is possible to adopt a structure in which the backing member 17 is provided inside the opening 16 formed in the surface plate 15, and the opening widths of the dovetail groove 8 and the opening 16 are the intervals of the root portions on the outer surfaces of the both-side mounting portions 3, 3. Is set to.

In order to mount the joint material 1, first, as shown in FIG. 3, the mounting portions 3 and 3 on both sides of the dovetail groove 8 or the opening 16 from the front side are utilized by utilizing the elasticity of the synthetic resin. And insert it.

Next, when the jointing material main body 2 is pushed in from the front side with a fingertip, the pushing projection 12 provided on the jointing material main body 2 pushes the cylindrical portion 13 of the connecting portion 4 as shown by the alternate long and short dash line in FIG. The shoulders 11a on both sides of the bulging portion 11 are pushed backward and the inverting wall 1
4 and 14, the inversion walls 14 and 14 on both sides are inverted to a shape that bulges rearward, and the cylindrical portion 13 is formed on the bottom surface of the joint groove.
Are in contact with each other. When the joint material main body 2 is released from the indentation, the joint material main body 2 elastically returns to its original shape as shown by the solid line in FIG.

The connecting part 4 is pushed between the two mounting parts 3 and 3 by pushing the both side reversing walls 14 and 14 so as to push the two mounting parts 3 and 3 apart, and to the inside of the two mounting parts 3 and 3. Prevent the movement of.

As a result, the joint material 1 is fixed to the joint groove, and the mounting portions 3 and 3 on both sides and the joint groove have a dove-groove relationship, and the mounting portions 3 and 3 on both sides are the connecting portion 4. Since it is in an expanded state and is prevented from moving inward, the joint material 1 can be firmly fixed to the joint groove, and for example, as shown in FIG. 5, the joint portion of the wall surface is finished with the joint material 1. be able to. It should be noted that a concave groove 18 for accommodating the cylindrical portion 13 may be formed in the center of the bottom surface of the joint groove so that the posture of the joint wall can be maintained more reliably by increasing the movement amount of the reversing walls 14, 14.

Further, since the joint material 1 is made of a flexible synthetic resin, it is flexible and can be used like a door, a decorative three-sided frame, or a decorative edge of a deformed curtain plate on the ceiling. Even if there is a radius, it can be installed along the radius without any problems, and the radius can be finished beautifully.

[0032]

[Effect] As described above, according to the present invention, since it has the above-mentioned configuration, the following effects are obtained.

(I) Since the joint material is made of synthetic resin,
Light weight, low cost, and rounded packaging make it easy to carry on site.

(II) Both mounting parts become dovetails and both mounting parts
The elastic connection part that connects the
The cylindrical part in the center and the connecting wall that connects this cylindrical part and the mounting part
Since it is formed by, the elastic connection part is
Stretch between the mounting parts and keep both mounting parts open
Therefore, the fixed state with respect to the joint groove can be firmly performed, and the fixed state does not change with time, and a stable attached state can be obtained for a long period of time.

(III) Since it is lightweight and has excellent fixing strength, it does not fall off even if it is attached to a portion where a shock is generated such as a door.

(IV) Since the joint material is made of synthetic resin,
It is bendable and can be beautifully finished even on curved areas.

(V) Since the joint material can be extruded and molded from synthetic resin, various widths corresponding to the joint width can be manufactured at low cost.

(VI) Lightweight and excellent in fixing strength,
It is possible to form a joint material having a wide width which has never been obtained.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an initial state of attachment of a joint material of a first embodiment according to the present invention.

FIG. 2 is a sectional view showing a fixed state of the above.

FIG. 3 is a cross-sectional view showing the initial state of attachment of the joint material of the second embodiment.

FIG. 4 is a sectional view showing a fixed state of the above.

FIG. 5 is a perspective view showing a joint finish state of a wall surface.

[Explanation of symbols]

 1 joint material 2 joint material main body 3 mounting portion 4 connection portion

Claims (1)

[Scope of utility model registration request] And 1. A joint compound body formed into a desired cross-sectional shape using a synthetic resin, on either side of the position at the back of the joint member main body, forms communicating to opposite outer surface is shaped spread backwards
Installed so that both mounting parts are connected between the two mounting parts.
And the elastic connecting portion , the elastic connecting portion is not deformed.
A central cylindrical part that is possible and has resilience, and this cylindrical part
A joint material formed with a connecting wall that connects the mounting parts on both sides .