JP2858307B2 - Joint construction method, joint gasket and joint construction nozzle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of applying joints formed between panels, tiles or bricks, joints formed around a sash, and other joints, and a gasket and a nozzle directly used for performing the joints. About.

[0002]

2. Description of the Related Art A joint material-filled joint obtained by injecting and filling a required joint material expands or contracts in width due to temperature, humidity, vibration of a building, or the like. The joint material peels off from the joint inner wall surface, so-called boundary surface peeling, which may cause rain leakage or the like.

[0003] That is, although the joint material is adjusted so as to follow a certain degree of expansion and contraction, in actuality, when the width and the thickness have a large cross section exceeding 10 mm, for example, the joint material is adjusted. It becomes impossible to follow the expansion and contraction, and the above-described boundary surface peeling occurs. If the flexibility of the joint material is increased in order to improve its followability, the workability will be extremely poor, and so-called sagging will occur, causing deformation,
In addition to impairing the appearance, the joint material may not function properly.

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention to reduce the depth of the joint to about half of the joint, to fit a gasket made of a flexible material into the joint, and to cover the joint with a gasket. The gasket method of covering the opening surface of the joint tightly including both side edges thereof is considered to be preferable because the boundary surface peeling does not occur at least at the opening surface of the joint as in the joint filled with only the joint material. In spite of being
It is to make the gasket method more effective.

[0005]

The joint construction method of the present invention comprises:
The joint a is filled with the joint material d to about half of its depth, and a groove d ′ is formed at the center of the upper surface of the filled joint material d.
And a gasket b formed by integrally molding a solid or hollow expansion / contraction part 1 and a cover plate 2 with a flexible material in a state where the expansion / contraction connection part 3 connects the expansion / contraction part. 1 is fitted in the groove d 'and the joint a
To cover the opening surface of each of the joints including the both side edge portions so as to be fitted to the joint a.

The gasket b is solid or hollow to fit into a groove d 'formed in a joint material d filled in a joint a, and has a width and a height of about half of the joint a. 1. A vertically elongated expansion / contraction part 1 having a width and height of 1 and a joint a
A cover plate 2 having a width covering the opening surface of the front and rear sides including the both side edges thereof, a telescopic connecting portion 3 including left and right curved pieces 7, 7, and further, outer right and left edges of the expansion / contraction portion body 1. It is preferable that the horizontal flange pieces 5, 5 with the width between the joints being larger than the width of the joint are protruded and integrally formed of a flexible material such as various rubbers or synthetic resins.

To fill the joint a with the joint material d and form a concave groove d 'in the center of the upper surface thereof, the joint a is mounted on the discharge port e' of the joint material replenishment type caulking gun or the cartridge e filled with the joint material. The mounting tubular portion 8 and a finishing opening 9 having a series of passages 10 communicating with the lower end opening 17 are integrally formed. The finishing opening 9 has a width that can be inserted into the joint a. It is convenient to use a construction nozzle in which a groove projection 18 is hung at the front center and a guide piece 19 which is longer than the groove projection 18 is hung at the rear side.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS First, reference numeral b denotes a gasket to be fitted to a joint a, which is a state in which an expansion / contraction part 1 and a cover plate 2 are connected via an expansion / contraction connecting part 3, and various rubbers. Alternatively, it is integrally molded with a flexible material such as a synthetic resin.

The expansion / contraction part 1 may be a solid material such as a sponge or a hollow material such as a tube as long as it has a required expansion / contraction function. In the illustrated embodiment, a hollow expanding / contracting body 1 is employed. That is, the expansion / contraction portion body 1 is a vertically long hollow body having a width and height almost half of the width and height of the joint a, and has horizontal flange pieces 5 and 5 protrudingly provided on the left and right sides of an upper side wall 4 thereof. ing.

The telescopic connecting portion 3 is provided with left and right curved pieces 7, 7 on a ridge 6 integrally formed at the center of the upper surface of the upper side wall 4.
In a substantially V-shape. Numeral 6 'is a through hole provided at a required interval in the ridge 6, and particularly for horizontal joints, for flowing down rainwater or the like entering the upper side of the ridge 6 when flowing therethrough. The cover plate 2 is formed integrally with the free ends of the curved pieces 7, 7, so that the telescopic connecting portion 3 is hollow.

The width between the outer edges of the horizontal flange pieces 5, 5 is
The width is slightly larger than the width of the joint a.
7 and 8, the outer edge of the joint 5 is brought into contact with the inner wall surface of the joint a to be lifted in the joint a as shown in FIGS.

The width of the cover plate 2 is sufficiently larger than the width of the joint a. Therefore, the cover plate 2 can cover the opening surface of the joint a with a margin including both side edges. .

Reference numeral c denotes a construction nozzle used for filling and filling a required joint material d into the joint a and forming a groove d 'described later on the surface of the filled joint material d.
The installation nozzle c has a mounting tubular portion 8 integrally formed of an elastic material such as various rubbers or synthetic resins and a finish opening 9.
And a series of passages 10 are formed therein.

A base 12 having a female thread 11 engraved on the inner peripheral surface thereof is fitted into the inside of the mounting tubular portion 8, and a core plate 13 extending from the base 12 is provided with a curved tip portion 13 '. Is extended and buried substantially in the center of the thickness of the bulging wall 14 that is continuous with the lower front side of the mounting tubular portion 8 within the thickness of the finishing opening 9.

The finishing opening 9 has a width substantially equal to the width of the joint a, and can be inserted into the joint a.
In addition, the bulging wall 14, the left and right side walls 15, 15 and the rear side wall 1
6, the lower end opening 17 of the passage 10 is formed so as to surround the lower end opening 17, and a groove projection 18 which is continuous with the bulging wall 14 is suspended at the front center of the lower end opening 17;
In addition, the lower end of the rear side wall 16 is formed as a guide piece 19 longer than the concave groove projection 18. The width of the guide piece 19 is the same as the width of the finish opening 9 itself, and is a dimension that can be inserted into the joint a.

The construction nozzle c having the above-described construction is used for a known joint material replenishment type caulking gun for replenishing the joint material d each time it is used, or a joint material-filled cartridge e to be used by being loaded into a known cartridge loading gun. (See FIGS. 5 and 6), and is used to fill and fill the joint a with the joint material d and to form a concave groove d 'on the upper surface of the filled joint material d. .

An actual joint construction, which includes filling and filling a joint material d into a joint a using a construction nozzle c and fitting a gasket b having the above-described structure, is performed as follows. Will be

The joint a is in the form of a groove, and after cleaning and applying a primer as a pretreatment according to a customary practice, a backup material 20 is laid on the bottom surface. Then, the finishing port 9 of the construction nozzle c is inserted into the joint a, and the caulking gun or the cartridge e is manually inserted into the joint a with the guide piece 19 in contact with the backup material 20 of the joint a in FIG.
As shown in FIG.

In this state, by operating the operating lever (not shown) of the caulking gun or the cartridge e, the finishing opening 9 is pushed along the joint a while the joint material d is pushed out, that is, FIGS. Arrow 21
Pull in the direction.

Thus, the joint material d in the caulking gun or the cartridge e is injected and filled into the joint a through the passage 10 and the lower end opening 17 of the construction nozzle c to a position slightly higher than half its depth. A groove d 'is continuously formed at the center of the upper surface of the filled joint material d by the groove protrusion 18.

Subsequently, the gasket b is fitted to the joint a.
When the gasket b is fitted, the expansion / contraction part 1 is connected to the groove d '.
The horizontal flange pieces 5 and 5 of the gasket b are lifted by contacting the outer edges of the gasket b with the inner wall surface of the joint a as shown in FIGS. At the same time, the joint material d on both sides of the concave groove d 'is pressed, and the cover plate 2 covers the opening surface of the joint a with a sufficient margin including both side edges.

In this state, when the joint material d hardens,
While the expansion / contraction part 1 is restrained by the joint material d,
The horizontal flange pieces 5, 5 are in tension with the inner wall surface of the joint a, and the cover plate 2 closes the opening surface of the joint a in a state in which both sides are closely contacted with both side edges of the opening surface of the joint a. .

When the joint a expands or contracts due to temperature, humidity, vibration of a building, or the like, the expansion / contraction connecting portion 3 expands / contracts and the expansion / contraction portion 1 expands / contracts following the expansion / contraction. No. 2 does not deform under the influence and reliably maintains the above-mentioned closing action. That is, the expansion / contraction portion body 1 expands / contracts as the joint a expands / contracts its width, and
As the expansion / contraction part 1 expands / contracts, the cover plate 2
However, the expansion / contraction connecting portion 3 extends the curved pieces 7 and 7 into a substantially V-shape on the ridge 6 and makes the inside and the outside hollow. The expansion and contraction are absorbed by the expansion and contraction of the curved pieces 7 and 7 themselves, and do not affect the cover plate 2. Therefore, the opening surface of the joint a is closed by the cover plate 2 firmly.

When the joint material d is injected and filled into the joint a by the construction nozzle c, the guide piece 19 is connected to the joint a.
This is performed in a state of contact with the back-up material 20 more specifically, so that the joint material d does not flow in advance in the traveling direction 26 side of the nozzle c as in the case where the guide piece 19 is not provided. Therefore, there is no possibility that air is taken into the filled joint material d.

[0025]

As is apparent from the above description, the method of the present invention forms a groove in the joint material filled in the joint,
By covering the opening surface of the joint with the cover plate while fitting the expansion and contraction portion of the gasket into the concave groove, the gasket is fitted to the joint, without forming the concave groove, Compared to directly pushing the expansion / contraction part into the joint material in the joint, in addition to the fact that the gasket fitting operation can be performed easily and reliably, the expansion / contraction part body is deformed during the fitting operation. There is no such thing.

In the joint thus completed, the cover plate covers the opening surface of the joint with a margin including both side edges, and furthermore,
As described above, even if the width of the joint expands and contracts due to the temperature, humidity, or vibration of the building, it is absorbed by the expansion and contraction of the expansion and contraction portion of the gasket, and the expansion and contraction of the expansion and contraction portion expands and contracts. Since it is absorbed by the connecting portion, the expansion and contraction of the expansion and contraction portion does not act on the cover plate to deform it. Therefore, the closing action of the joint opening surface by the cover plate is reliably maintained.

Further, by using the gasket, the work efficiency can be improved because the amount of joint material used is reduced, and the durability is significantly improved compared to the case where only the joint material is filled in the joint. Can be improved.

According to the joint gasket and nozzle of the present invention, the above-described method of the present invention can be carried out without special skill, and a desired joint can be easily finished, which is convenient.

[Brief description of the drawings]

FIG. 1 is a perspective view of an example of the gasket of the present invention used in the method of the present invention.

FIG. 2 is a front perspective view of a nozzle of the present invention used for carrying out the method of the present invention.

FIG. 3 is a perspective view of the nozzle of the present invention as viewed from below.

FIG. 4 is a longitudinal sectional view of the nozzle of the present invention.

FIG. 5 is a perspective view for explaining the construction method of the present invention and showing a state where the joint material is filled using the nozzle.

FIG. 6 is a sectional view of the same.

FIG. 7 is a perspective view showing a state in which the gasket of the present invention is fitted.

FIG. 8 is a cross-sectional view of the joint after completion of construction.

[Explanation of symbols]

a joint b gasket c nozzle d joint material d 'concave groove e well-known joint material refilling type caulking gun or cartridge filled with joint material e' discharge port 1 expansion / contraction part 2 cover plate 3 telescopic connecting part 5 horizontal flange piece 7 curved Piece 8 mounting cylindrical portion 9 finishing opening 10 passage 17 lower end opening 18 projection for concave groove 19 guide piece

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁶ , DB name) B05C 7/00-21/00 E04F 21/165

Claims (7)

(57) [Claims] A step of filling the joint with the joint material to approximately half its depth and forming a concave groove in the center of the upper surface of the filled joint material; And a gasket formed integrally with a flexible material in a state of being connected to the expansion / contraction connection portion, by fitting the expansion / contraction portion body into the concave groove and using the cover plate to open and close the joint opening surface. A step of fitting the joint to the joint by covering and covering the part. 2. A solid or hollow expanding / contracting portion which fits into a groove formed in a joint material filled in a joint, and a cover plate having a width covering an opening surface of the joint including both side edges. Characterized in that they are integrally formed of a flexible material such as various rubbers or synthetic resins in a state where they are connected by an expansion and contraction connecting portion composed of left and right curved pieces arranged substantially in a V-shape. 3. The expansion and contraction portion has a joint width and height of approximately 2 mm.
It is characterized in that it forms a vertically long hollow body with a width and height of one-half, and has a horizontal flange piece on the left and right sides of its upper side wall, the width between outer edges being larger than the width of joints. The joint gasket according to claim 2, wherein 4. An expansion / contraction connecting portion extends right and left curved pieces in a substantially V-shape on a ridge integrally formed at the center of the upper surface of the expansion / contraction portion, and a through hole is formed in the ridge at a required interval. The joint gasket according to claim 2, wherein the joint gasket is provided. 5. A mounting cylindrical portion to be mounted on a discharge port of a joint material replenishment type caulking gun or a cartridge filled with a joint material, and a finishing opening having a series of passages leading to a lower end opening are integrally formed. The part has a width that can be inserted into the joint, and a projection for a groove is suspended at the center of the front side of the lower end opening, and a guide piece longer than the projection for the groove is suspended at the rear side. Characteristic nozzle for joint construction. 6. The joint construction method according to claim 1, wherein the filling of the joint material and the formation of the concave groove are performed using the joint construction nozzle according to claim 5. 7. The joint construction method according to claim 1, wherein the gasket according to claim 2, 3 or 4 is fitted to the joint.