JPH11216392A - Coking nozzle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a coking nozzle capable of being smoothly moved along a grooved part and also preventing the squeeze-out of a coking material. SOLUTION: A nozzle 5 is attached to the leading end of the cartridge held to a coking gun 10 by an union nut 12 and the projected part 4 provided to the leading end surface of the nozzle 5 is introduced into a joint gap 22 to guide the movement of the nozzle 5. An injected coking material C is pressed by the press surface 3 of the leading end surface of the nozzle 5 and the squeeze-out thereof is prevented by a cover 9.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a caulking nozzle, and more particularly to an improved caulking nozzle capable of greatly improving coking efficiency.

[0002]

2. Description of the Related Art In order to inject a caulking material into a groove-shaped portion such as a gap formed at a butt portion of a panel, a cartridge is held by a caulking gun, and the caulking material is discharged from a nozzle attached to a tip of the cartridge. Flows into the shaped part.

In many work sites, the injected caulking material is leveled by pressing it with a fingertip. However, Japanese Patent Application Laid-Open No. 8-243337 discloses a nozzle provided with an edge piece for pressing the caulking material. There is described a filler filling finish nozzle in which the caulking material flows into the groove portion while moving the nozzle along the groove portion, and the caulking material is also leveled.

[0004]

In any of the above nozzles, there is a problem to be solved in that when the nozzle is moved along the groove portion, the nozzle is likely to come off the groove portion.

It is a first object of the present invention to provide a caulking nozzle capable of moving the nozzle smoothly along the groove. It is a second object of the present invention to provide a caulking nozzle capable of preventing the caulking material injected from the nozzle into the groove portion from spreading around.

[0006]

SUMMARY OF THE INVENTION A caulking nozzle according to the present invention is a caulking nozzle for injecting a caulking material into a groove portion, wherein an inner hole through which the caulking material flows extends from a base end to a tip end. In a caulking nozzle that extends in the axial direction and has a distal end surface that is an oblique surface that is oblique to the axial direction, at the end of the distal end surface that is closer to the base end, When the nozzle moves along the groove portion, a projection is provided to engage the groove portion and guide the nozzle.

In such a caulking nozzle, a convex portion is provided at an end portion (hereinafter, sometimes referred to as a head side) of the distal end surface of the nozzle which is close to a base end portion. The caulking material is injected by engaging the groove portion and moving the nozzle along the groove portion such that the leading side is the leading side in the moving direction. In this case, since the convex portion on the leading end is engaged with the groove portion, the nozzle can be smoothly moved without coming off the groove portion.

In the present invention, the distal end surface of the nozzle is connected to the first surface on one half side with respect to a line segment connecting the end near the base end and the end far from the base end. It is preferable to have a half-side second surface, and the first surface and the second surface are oriented in an oblique direction so that the line segment forms a top ridge. By providing two surfaces obliquely sandwiching the top ridge on the tip surface in this way, the nozzle can be moved very smoothly along the groove portion while each surface is in contact with the edge of the groove portion. And the caulking material is prevented from running over the edge and to the side.

In this case, it is preferable that a pressing surface for pressing the caulking material flowing out from the inner hole is provided at an end portion of the distal end surface farther from the base end portion. With this arrangement, the caulking material injected into the groove-shaped portion can be pressed and leveled by the pressing surface.

According to the present invention, by providing a cover on the outside of the nozzle for scraping the caulking material flowing out of the inner hole, it is possible to reliably prevent the caulking material from protruding from the groove portion.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. 1A and 1B show a nozzle according to an embodiment of the present invention. FIG. 1A is a perspective view of the tip of the nozzle, and FIG. 1B is a cross-sectional view taken along line BB in FIG. , (C) is a cross-sectional view taken along line CC in FIG. (D) is an overall perspective view of the nozzle. FIG.
FIG. 4 is a perspective view showing a method for manufacturing the nozzle.

The nozzle 5 has a flange 6 on the base end side and an outflow portion of the caulking material C on the front end side. The nozzle 5 has a tapered cylindrical shape having an inner hole 7 penetrating from the base end side to the distal end side.

The tip surface of the nozzle 5 has a first surface 1 and a second surface 2 which are inclined with respect to the direction of the axis of the nozzle 5. A pressing surface 3 and a convex portion 4 are provided at the intersection of the second surface 2.

To manufacture this nozzle 5, FIG.
As shown in the figure, the tip of the long conical nozzle element body 5A is
As shown in FIG. 2 (b), first, the nozzle body 5A is cut obliquely in the direction along the first surface 1 so as to be oblique to the axis of the nozzle body 5A, and then as shown in FIG. 2 (c). The nozzle body 5A is cut along an oblique direction along the surface 2 of FIG. As a result, a convex portion 4 is formed at the tip of the nozzle 5 on the side close to the base end side (flange 6) of the nozzle 5 at the vertex-like intersection of the surfaces 1 and 2. Nozzle 5 at the intersection of these surfaces 1 and 2
Is cut in the direction of the arrow (perpendicular to the plane including the axis of the nozzle body 5 and the top ridge) with a blade 8 having an arc-shaped cross section. Thereby, the holding surface 3 is formed.

The nozzle 5 is attached to a cartridge 11 of a caulking gun 10 by a union nut 12, as shown in FIG.

FIG. 3 is a perspective view and a sectional view showing a state in which a cover 9 is attached to the nozzle 5. This cover 9
It is made of cylindrical rubber or soft resin material, and its base end is connected to the nozzle 5. Cover 9
Has a shape cut obliquely so as to be slightly receded from the tip of the nozzle 5.

A method of injecting the caulking material C using the nozzle 5 will be described with reference to FIGS. Joint gap 22 between flanges 21 and 21 of wall panels 20 and 20
The caulking material C is injected into the (groove portion) using the caulking gun 10. A cartridge 11 is mounted on the caulking gun 10, and a nozzle 5 is attached to the tip of the cartridge 11 using a union nut 12.

When the caulking material C is injected into the joint gap 22 as a groove, the convex portion 4 is inserted into the joint gap 22, and the surfaces 1 and 2 abut against the peripheral portions of the wall panels 20 and 20, respectively. Let it. At this time, the front end surface of the cover 9 also overlaps the entire surface of the peripheral portion of the wall panels 20, 20. Since the cover 9 is made of a soft material, it is elastically deformed and the wall panel 2
Close contact with 0,20. In this state, the caulking gun 10
The caulking gun 10 is moved along the joint gap 22 while slowly pulling the lever handle 13. In this case, since the convex portion 4 is located on the leading side in the moving direction, the nozzle 5 does not come off from the joint gap 22 and moves smoothly. The caulking material C injected from the tip of the nozzle 5 into the joint gap 22 is pressed down by the pressing surface 3 and is evenly leveled. At this time, surfaces 1 and 2 are wall panels 2
Since the cover 9 is in contact with the edges of the wall panels 20 and 20 and the cover 9 is in close contact with the front surfaces of the wall panels 20 and 20, the caulking material C does not protrude to the front side of the wall panel 20 at all.

As described above, when the caulking material C is injected using the nozzle 5, the nozzle 5
Therefore, the caulking operation can be performed extremely easily and quickly without the caulking material C protruding, and the finish of the caulking material C can be improved.

FIG. 6 is a perspective view of a tip portion of a nozzle according to another embodiment of the present invention, and a cover 9 'having a semicircular tip end is employed. As described above, the cover is not limited to the one that surrounds the entire circumference of the nozzle. Even if the cover surrounds only the rear side in the moving direction of the caulking gun 10, it is possible to prevent the caulking material C from protruding.

[0021]

As described above, according to the caulking nozzle of the present invention, the nozzle can be moved smoothly by engaging the convex portion with the groove portion, and the coking operation efficiency is improved. Further, it is possible to level the caulking material injected into the groove-like portion at the holding portion. Further, according to the present invention, it is possible to prevent the caulking material from protruding from the groove-shaped portion.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a nozzle according to an embodiment.

FIG. 2 is an explanatory diagram of manufacturing a nozzle according to an embodiment.

FIG. 3 is a configuration diagram of a nozzle provided with a cover.

FIG. 4 is a perspective view showing a caulking operation using the nozzle according to the embodiment.

FIG. 5 is a sectional view taken along line VV in FIG. 4;

FIG. 6 is a perspective view of a tip portion of a nozzle according to another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 1st surface 2 2nd surface 3 Pressing surface 4 Convex part 5 Nozzle 6 Flange 7 Inner hole 9, 9 'Cover 10 Caulking gun 11 Cartridge 12 Union nut 13 Lever handle 20 Wall panel 21 Flange 22 Joint gap (groove shape) Part)

Claims (4)

[Claims] A caulking nozzle for injecting a caulking material into a groove-like portion, wherein an inner hole through which the caulking material flows extends in the axial direction from a base end to a front end, and a front end surface is formed. A caulking nozzle having an oblique surface that is oblique to the axial direction, wherein the nozzle moves to an end near the base end of the distal end surface along the groove portion. A protruding portion that engages with the groove portion to guide the nozzle. 2. The first surface according to claim 1, wherein the distal end surface is a first half surface with a line segment connecting an end portion closer to the base end portion and an end portion farther from the base end portion interposed therebetween. And a second surface on the other half side, wherein the first surface and the second surface are oriented obliquely so that the line segment forms a top ridge. Characteristic nozzle for caulking. 3. The method according to claim 2, wherein a pressing surface for pressing the caulking material flowing out from the inner hole is provided at an end of the distal end surface farther from the base end. Nozzle for caulking. 4. The coking nozzle according to claim 1, wherein a cover is provided outside the nozzle to scrape the caulking material flowing out of the inner hole.