JP2001149841A - Sealing nozzle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sealing nozzle for easily applying a sealing material in a uniform width even on a hemming end edge on the inner face side of an upper edge on the hinge side of a car tail gate in its totally open and jumped upward state. SOLUTION: The end of a pipe-shaped sealing nozzle 1 is bent into the U- shape along the folding direction of a hemming section H. A slit-shaped jet opening 4 is opened, facing a hemming end edge Hl on the end side of a U-shaped bending section 3. A resin guide member 5 to be slidably brought into contact with the outer face of a tail gate T is attached on the base end side of the U-shaped bending section 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sealing nozzle used for applying a sealing material.
The present invention relates to a sealing nozzle suitable for applying a sealing material to an edge of a hemming portion located on an inner surface side of an upper edge portion of a tailgate of an automobile.

[0002]

2. Description of the Related Art In an automobile assembly line, a sealing material is applied to a joint edge of a vehicle body panel or an edge of a hemming portion as a measure for waterproofing, dustproofing, and soundproofing a vehicle body. In this case, the sealing material is applied using a sealing nozzle in order to uniformly and reliably and efficiently seal the joining edge and the hemming portion edge.

[0003] The sealing nozzle is disclosed in Japanese Utility Model Laid-Open Publication No. Hei 6-72646 and Japanese Utility Model Registration No. 25.
As described in 94086, various proposals have been made to improve the workability and work quality. As shown in FIGS. 5 to 7, sealing nozzles of various shapes are used.

[0005] The sealing nozzle shown in FIG. 5 is a so-called flat nozzle 10 with a cut. The tip 11 is formed flat, and the left and right corners 12, 12 at the tip are obliquely cut. According to the flat nozzle with cut 10, the width of application of the sealing material discharged from the slot-shaped discharge port of the distal end portion 11 can be expanded. This type of flat nozzle with a cut is described in Japanese Utility Model Application Laid-Open No. 6-72646.

The sealing nozzle shown in FIG. 6 is a so-called flat nozzle 20 with a guide. The tip 21 is formed flat, and a guide bar 22 is provided on one of the left and right sides in a substantially parallel manner. . According to the flat nozzle 20 with a guide, by using the guide bar 22 as a guide member,
It is possible to prevent the sealing material discharged in a strip shape from the slot-shaped discharge port of the distal end portion 21 from wobbling in the width direction. This type of flat nozzle with a guide is also disclosed in Japanese Utility Model Laid-Open No. 6-72646.
No., published in Japanese Unexamined Patent Publication No.

Furthermore, the sealing nozzle shown in FIG.
A so-called L-shaped nozzle 30 and a tip 3 made of a pipe material
1 is bent in an L-shape, and a slit-shaped discharge port 32 is opened at the tip side. This L-shaped nozzle 30
According to this, the tip portion 31 can be exposed to the application location of the sealing material through the narrow gap, and the sealing material can be applied to a predetermined width. This type of L-shaped nozzle is described in Japanese Utility Model Registration No. 2594086.

[0007]

However, FIGS.
In the conventional sealing nozzles shown in FIG. 1, a tail gate T of an automobile shown in FIGS. 8 and 9, that is, a tail gate T hinged to a rear end portion of a roof R via a bracket B is provided. When a sealing material is applied to the edge H1 of the hemming portion H located on the inner surface side of the edge, the following problem occurs.

The flat nozzle with cut 10 shown in FIG. 5 and the flat nozzle 20 with guide shown in FIG.
When moving 1 along the longitudinal direction of the hemming portion edge H1, the tip portions 11 and 21 interfere with the bracket B. For this reason, in the flat nozzle with cut 10 and the flat nozzle with guide 20, as shown in FIG. 9, the sealing material must be applied in three zones divided by a pair of left and right brackets B, B. There is a problem that the workability is extremely poor. In addition, the sealing material may adhere to the brackets B, B, and the work quality may be reduced. Furthermore, when two types of sealing nozzles are used in combination, such as using the flat nozzle 20 with a guide in the left and right zones and using the flat nozzle 10 with a cut in the center zone among the three zones, There is a problem that the width of the sealing material applied to the hemming portion edge H1 is not constant, and the appearance is impaired.

On the other hand, as shown in FIG. 10, the L-shaped nozzle 30 shown in FIG. 7 can have its front end 31 facing the hemming portion edge H1 on the inner side from the outer side of the tailgate T. , B, the sealing material can be continuously applied on the hemming portion edge H1. However, in the L-shaped nozzle 30, when the tail gate T is fully opened as shown in FIG. 8, the front end portion 31 cannot face the hemming portion edge H 1. For this reason, in the L-shaped nozzle 30, when the automobile is transported on the assembly line with the tailgate T fully opened,
It is necessary to temporarily close the tailgate T as a work preparation, and to fully open the tailgate T again after the work is completed, which causes a problem that the number of work steps increases.

Therefore, the present invention provides a sealing material having a uniform width on the edge of the hemming portion on the inner side of the upper edge portion, which is the hinge side, even for a tailgate of a fully opened vehicle that is flipped upward. It is an object of the present invention to provide a sealing nozzle that can be easily applied by using a sealing nozzle.

[0011]

As a means for solving the above-mentioned problems, a sealing nozzle according to a first aspect of the present invention can apply a sealing material to an edge of a hemming portion on the inner surface side of a panel having a hemming portion on a peripheral edge. A pipe-shaped sealing nozzle, wherein the tip of a nozzle body extending along the longitudinal direction of the hemming portion is bent in a U-shape along the bending direction of the hemming portion, and the U-shaped bent portion A slit-like discharge port is opened at the distal end side of the hemming portion so as to face the edge thereof, and a resin guide member that is in sliding contact with the outer surface of the panel is provided at the base end side of the U-shaped bent portion. It is characterized by having.

In the sealing nozzle according to the first invention,
When the U-shaped bent portion at the distal end is made to follow the bending of the hemmed portion at the peripheral portion of the panel, and the guide member on the base end side of the U-shaped bent portion slides on the outer surface of the panel, the tip of the U-shaped bent portion is formed. The discharge port on the side faces the hemming portion edge on the inner surface side of the panel. Therefore, when the nozzle body is moved along the longitudinal direction of the hemming portion while discharging the sealing material from the discharge port of the U-shaped bent portion, the slit-shaped discharge port uniformly distributes the sealing material toward the hemming portion edge. Apply in a strip with a width.

The sealing nozzle according to a second aspect of the present invention is the sealing nozzle according to the first aspect of the present invention, wherein the panel has a tailgate hinged to a rear end of a roof of an automobile, and an inner surface of an upper edge thereof. A sealing material can be applied to the edge of the hemming portion on the side.

In the sealing nozzle according to the second invention,
The tip of the U-shaped bent portion at the tip is inserted between the hemming portion of the upper edge of the tailgate and the rear end of the roof, and the U-shaped bent portion is formed along the bending of the hemming portion to form a U-shaped portion. When the guide member on the base end side of the bent portion slides on the outer surface of the tail gate, the discharge port on the distal end side of the U-shaped bent portion faces the edge of the hemming portion. Therefore, when the nozzle body is moved along the longitudinal direction of the hemming portion while discharging the sealing material from the discharge port of the U-shaped bent portion, the slit-shaped discharge port uniformly distributes the sealing material toward the hemming portion edge. Apply in a strip with a width. The application of the sealing material can be similarly performed in a fully closed state of the tailgate or in a fully opened state in which the tailgate is flipped up.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a sealing nozzle according to the present invention will be described below with reference to the drawings. In the drawings to be referred to, FIG. 1 is a cross-sectional view of a rear end portion of a roof of a vehicle and an upper edge portion of a tailgate showing a usage state of a sealing nozzle according to an embodiment and a main structure thereof, and FIG. FIG. 3 is a perspective view showing the essential structure of the nozzle, FIG. 3 is a perspective view of the vicinity of the rear end of the roof of an automobile showing the usage state of the sealing nozzle according to one embodiment, and FIG. 4 is applied by the sealing nozzle according to one embodiment. It is sectional drawing of the hemming part of the tail gate which shows a sealing material layer.

A sealing nozzle according to an embodiment of the present invention is a pipe-shaped sealing nozzle capable of applying a sealing material to an edge of a hemming portion on an inner surface side of a panel having a hemming portion on a peripheral edge. As shown, the tailgate T hinged to the rear end of the roof R of the automobile via a bracket B is used as the panel, and the edge of the hemming portion H bent at the upper edge, that is, the tailgate. Hemming portion edge H located on the inner surface side of the upper edge portion of T
1 is configured to be able to apply a sealing material.

As shown in FIGS. 1 and 2, in the sealing nozzle 1 of one embodiment, the tip of a nozzle body 2 extending along the longitudinal direction of the hemming portion H extends along the bending direction of the hemming portion H. It is bent in a U-shape. Further, a slit-shaped discharge port 4 is opened at the tip side of the U-shaped bent portion 3 so as to face the hemming portion edge H1. Also,
On the base end side of the U-shaped bent portion 3, a resin-made guide member 5 that is in sliding contact with the outer surface of the tail gate T is provided.

The nozzle body 2 is made of a straight pipe material having a diameter of about 10 mm, and the length thereof is set to about the width of an automobile. The base end of the nozzle body 2 is connected to a sealing material pumping device (not shown) via a hose 6 shown in FIG. A gun trigger 7 is mounted on the base end side of the nozzle body 2 to control the discharge of the sealing material on and off.

The U-shaped bent portion 3 is made of a small-diameter pipe material connected to the tip of the nozzle body 2 and has a diameter of
The dimension that can be inserted into the gap between the hemming portion H at the upper edge of the tailgate T and the roof R is set to about 4 mm. The distal end of the U-shaped bent portion 3 is closed, and a slit-shaped discharge port 4 opened along the longitudinal direction of the distal end portion.
Has a width of about 1 mm and a length of about 6 to 8 mm.

The guide member 5 is formed in a tubular shape that can be fitted to the nozzle body 2, and is mounted on the distal end of the nozzle body 2 located on the base end side of the U-shaped bent portion 3. The resin constituting the guide member 5 may be any resin as long as it slidably contacts the outer surface of the tailgate T and does not damage the resin. A suitable thermoplastic resin is used.

The sealing nozzle 1 according to the embodiment having the above-described configuration is, for example, a hemming portion edge H on the inner side of the upper edge portion of the tail gate T in an automobile assembly line.
1 (see FIG. 1) is used to apply a sealing material. In this case, as shown in FIG. 3, the vehicle is transported in a fully opened state in which the tailgate T is flipped up.

Therefore, in applying the sealing material using the sealing nozzle 1, first, the U at the tip end is used.
The U-shaped bent portion 3 is exposed from the outer surface side of the tailgate T to the vicinity of the upper edge thereof, and the tip of the U-shaped bent portion 3 is attached to the tailgate T.
Between the hemming portion H and the upper surface of the rear end of the roof R. Then, as shown in FIG. 1, the U-shaped bent portion 3 is aligned with the bending direction of the hemming portion H, and the guide member 5 on the base end side of the U-shaped bent portion 3 is slid on the outer surface of the tailgate T. Let it.

As a result of the preparation operation described above, the slit-shaped discharge port 4 formed at the tip end of the U-shaped bent portion 3 of the sealing nozzle 1 faces the hemming portion edge H1 of the tail gate T (see FIG. 1). The nozzle body 2 continuing to the U-shaped bent portion 3 is supported along the hemming portion H of the tail gate T (see FIG. 3). Therefore, the sealing material is discharged from the discharge port 4 of the U-shaped bent portion 3 by operating the gun trigger 7 on the base end side of the nozzle body 2, and in this state, the nozzle body 2 is moved along the longitudinal direction of the hemming portion H. Operate at a constant speed.

By the above-mentioned coating operation, the slit-shaped discharge port 4 of the sealing nozzle 1 applies the sealing material in a uniform width toward the hemming portion edge H1 on the inner surface side of the tailgate T. As a result, the hemming portion edge H1 of the tailgate T is sealed with a uniform width by the sealing material layer S along its longitudinal direction as shown in FIG.

Incidentally, the sealing nozzle 1 of one embodiment
The sealing material can be applied in a band shape with a uniform width to the hemming portion edge H1 on the inner surface side of the upper edge of the tailgate T in the fully closed state. Further, the sealing nozzle 1 applies a sealing material in a band shape with a uniform width to an edge of a hemming portion on the inner side of a peripheral portion thereof, not only for a tailgate T of an automobile but also for a trunk lid and an engine hood. be able to.

The sealing nozzle of the present invention is shown in FIGS.
However, the present invention is not limited to the embodiment shown in FIG. For example, the nozzle body may be formed of a single pipe material that is continuous with the U-shaped bent portion. In this case, it is preferable to increase the rigidity by appropriately coating the outer periphery of the nozzle body. In addition, the bent shape of the U-shaped bent portion can be appropriately changed as long as its function can be maintained. Further, the opening width and the opening length of the discharge port can be appropriately changed according to the application width and the application amount of the sealing material, and the opening position thereof can be appropriately changed according to the position of the hemming portion edge.

[0027]

As described above, in the sealing nozzle according to the first aspect of the present invention, the U-shaped bent portion at the distal end is made to follow the bending of the hemming portion at the periphery of the panel, and the base end of the U-shaped bent portion is formed. When the side guide member is brought into sliding contact with the outer surface of the panel, the discharge port on the distal end side of the U-shaped bent portion faces the hemming portion edge on the inner surface side of the panel. Therefore, when the nozzle body is moved along the longitudinal direction of the hemming portion while discharging the sealing material from the discharge port of the U-shaped bent portion, the slit-shaped discharge port uniformly distributes the sealing material toward the hemming portion edge. Apply in a strip with a width. Therefore, according to the sealing nozzle of the first aspect of the present invention, even when the hemming portion of the peripheral portion of the panel is close to another member, the tip of the U-shaped bent portion is moved between the hemming portion and the other member. The sealing material can be easily applied to the edge of the hemmed portion with a uniform width as long as the U-shaped bent portion can be inserted along the bent portion of the hemmed portion.

In the sealing nozzle according to the second aspect of the present invention, the tip of the U-shaped bent portion at the tip is inserted between the hemming portion at the upper edge of the tailgate and the rear end of the roof to form a U-shaped. When the bent portion is made to follow the bending of the hemmed portion and the guide member on the base end side of the U-shaped bent portion is slid in contact with the outer surface of the tail gate, the discharge port on the distal end side of the U-shaped bent portion becomes the end of the hemmed portion. Facing the edge. Therefore, when the nozzle body is moved along the longitudinal direction of the hemming portion while discharging the sealing material from the discharge port of the U-shaped bent portion, the slit-shaped discharge port uniformly distributes the sealing material toward the hemming portion edge. Apply in a strip with a width. The operation of applying the sealing material can be similarly performed in a fully closed state of the tailgate or in a fully opened state in which the tailgate is flipped up. Therefore, according to the sealing nozzle according to the second aspect of the present invention, even with respect to the tailgate of a fully-opened automobile that has been flipped upward, the sealing is provided at the hemming portion edge on the inner side of the upper edge portion that is the hinge side. The material can be easily applied with a uniform width.

[Brief description of the drawings]

FIG. 1 is a diagram showing a usage state of a sealing nozzle according to an embodiment of the present invention and a main part structure thereof, and is a cross-sectional view of a rear end portion of a roof of an automobile and an upper edge portion of a tailgate.

FIG. 2 is a perspective view showing a main structure of a sealing nozzle according to one embodiment.

FIG. 3 is a perspective view of the vicinity of a rear end of a roof of an automobile, showing a usage state of a sealing nozzle according to an embodiment.

FIG. 4 is a cross-sectional view of a hemming portion of a tailgate showing a sealing material layer applied by a sealing nozzle according to one embodiment.

FIG. 5 is a perspective view showing a main structure of a conventional flat nozzle with cut.

FIG. 6 is a perspective view showing a main structure of a conventional flat nozzle with guide.

FIG. 7 is a perspective view showing a main part structure of a conventional L-shaped nozzle.

FIG. 8 is a view for explaining the usage of a conventional flat nozzle with a cut and a flat nozzle with a guide, and is a cross-sectional view of a rear end of a roof of an automobile and an upper edge of a tailgate.

FIG. 9 is a view for explaining the usage of the conventional flat nozzle with cut and the flat nozzle with guide, and is a rear view showing the inner surface of the upper edge portion of the tailgate of the automobile fully opened.

FIG. 10 is a cross-sectional view of a rear end portion of a roof of an automobile and an upper edge portion of a tail gate for explaining a usage state of a conventional L-shaped nozzle.

[Explanation of symbols]

 1: Sealing nozzle 2: Nozzle body 3: U-shaped bent part 4: Discharge port 5: Guide member B: Bracket H: Hemming part H1: Hemming part edge R: Roof S: Sealing material layer T: Tail gate

 ──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Tamotsu Mitani 1907, Hirata-cho, Suzuka-shi, Mie Honda Motor Co., Ltd.Suzuka Factory (72) Inventor Keiichi Kondo 1907, Hirata-cho, Suzuka-shi, Mie Honda Motor F term in Suzuka Manufacturing Co., Ltd. (reference) 4F041 AA17 AA19 AB01 BA05 BA12 BA22 CB17 CB43 CB47 4F042 AA28 AA30 FA22 FA36

Claims (2)

[Claims] 1. A pipe-shaped sealing nozzle capable of applying a sealing material to an edge of a hemming portion on an inner surface side of a panel having a hemming portion at a peripheral portion, the nozzle body extending along a longitudinal direction of the hemming portion. The tip portion is bent in a U-shape along the bending direction of the hemming portion, and a slit-shaped discharge port is opened on the tip side of the U-shaped bent portion so as to face the hemming portion edge, A sealing nozzle, wherein a guide member made of resin is provided on a base end side of the U-shaped bent portion so as to be in sliding contact with an outer surface of the panel. 2. The sealing nozzle according to claim 1, wherein a tailgate hinged to a rear end of a roof of the vehicle is used as the panel, and a sealing material is provided on an edge of a hemming portion on an inner surface side of an upper edge of the panel. A sealing nozzle characterized in that it is configured to be capable of applying a liquid.