JPH0332780A - Method for coloring sealing member for automobile - Google Patents

Abstract

PURPOSE:To reduce the number of stages and cost and to improve the appearance of a sealing member by coloring the member along projecting bars formed on the member. CONSTITUTION:When a sealing member (center weather strip) 3 for an automobile is molded, a groove 6 enclosing the region 5 of the member 3 to be colored is formed in the surface of the member 3 and projecting bars 8 connected to the member 3 in one body through thin hinges 7 are formed on the surface of the member 3 along the outside of the groove 6. The region 5 is colored with the bars 8 as a parting material and dried and then the bars 8 are fixed into the groove 6 to obtain a colored sealing member.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for coloring seal members for automobiles.

[Prior art]

Recently, a certain part of the surface of a sealing member such as a weather strip is colored in order to harmonize the color with surrounding members (see Japanese Patent Laid-Open No. 60-219145).
.

As this seal member, for example, as shown in FIG.
An example is a center weather strip 3 between a front door glass 1 and a rear side window glass 2 in a hard-top vehicle.

Conventionally, when coloring a certain area of the weather strip 3, as shown in FIG. 9, areas other than the shaded area 5 to be colored are coated with tape, paper, or a board.

Cover the area with a masking member 4 such as cloth, and in this state color the area to be colored by spraying it, painting it with a brush, or even dipping it in the coloring material, and after the coloring material dries. , the masking member 4 was peeled off or removed.

[Problem to be solved by the invention]

However, in such conventional coloring methods,
There were issues listed below.

(1) Masking member 4 must be prepared,
Also, it requires a lot of man-hours to apply and remove it.
Costs increase.

(2) If the shape of the colored portion of the sealing member is complicated or the colored shape is complicated, it becomes very difficult to set the masking member 4.

(3) A mark for setting the masking member 4 is required.

(4) If the method of setting the masking member 4 is incorrect, there is a risk that the color will smear in areas other than the colored areas, or the parting line will become blurred, which will impair the product's marketability.

The present invention has been made by focusing on such conventional problems, and aims to reduce man-hours and costs, improve appearance, and eliminate markings for separation. To provide a colored old anode for a seal member for an automobile that can be easily colored regardless of the color.

[Means for Solving the Problems] In order to achieve the above object, the present invention has a first means in which a groove surrounding the area to be colored is formed on the surface of the sealing member, and a thin hinge is provided on the outside adjacent to the groove. forming a protrusion integrally connected to the sealing member during molding of the sealing member;
The projecting stripes are colored in the area to be colored as a parting material, and after drying, the projecting stripes are fitted into the grooves,
In the second means, a fence having a tab surrounding the area to be colored is formed on the surface of the sealing member when the sealing member is molded, the area to be colored is colored using the tab as a parting material, and after drying, The fence has been removed.

[For production]

The protrusions (first means) and the tabs (second means) serve as parting parts for coloring. Therefore, no special masking member and work to set it are required.

Furthermore, in the first method, the color that protrudes or oozes out of the area other than the area to be colored is covered by the protrusion fitted into the groove, thereby making the coloring separation line clear. In addition, in the second means, the fence prevents the color from protruding or staining outside the area to be colored, and similarly the coloring separation line becomes clear.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.

/; δ, the same reference numerals are given to the same members as before.

First, as shown in the first figure, a groove 6 surrounding the area to be colored (indicated by diagonal lines) 5 and a groove 6 on the outside adjacent to the groove 6 are formed on the inner surface of the resin center weather strip 3 as a sealing member. A protrusion 8 integrally connected to the weather strip 3 via a thin wall thread 7 is formed when the waist strip 3 is molded.

In this case, the protrusions 8 are divided at the corners as shown in the figure, but they may be continuous.

Further, although the cross-sectional shapes of the grooves 6 and the protrusions 8 are circular in the drawings, other shapes such as a conical shape, an elliptical shape, and variations thereof may be adopted.

Next, as shown in the second figure, coloring 9 is applied to the area 5 to be colored as a parting material for the protrusion 8.

After the coloring 9 has dried, as shown in the third figure, the protrusion 8 is rotated about the thin hinge 7 as shown by the arrow, and is fitted into the groove 6 as shown in the fourth figure.

In this way, the coloring 9 is applied only to the area 5 scheduled for coloring.

According to this method of coloring 7, the protrusions 8 serve as parting parts for applying the coloring 9, and there is no need for a special masking member and the work to set it. There is no need for a mark for separation.

Furthermore, the color that protrudes or bleeds outside the planned coloring area 5 is covered by the protrusion 8 fitted into the groove 6,
Since the parting line of coloring 9 is clear, the appearance is good and the marketability is improved.

Furthermore, even if the shape and coloring shape of the weatherstrip 3 are complex, the pre-formed protrusions 8 make it possible to easily color the weatherstrip 3.

5 to 7 show other embodiments of the invention.

In this embodiment, as shown in FIG. 5, a narrow fence 11 having a tab 10 at the top that surrounds an area 5 to be colored (indicated by diagonal lines) is attached to the interior side surface of a center weather strip 3 as a sealing material. It is formed when the weather strip 3 is molded.

Further, although the cross-sectional shape of the knob portion 10 is exemplified as a spherical shape and a rod shape in the drawings, other shapes such as an ellipse shape and modifications thereof can be adopted. In FIG. 5, the image shapes are illustrated in the same drawing for convenience, but it is of course possible to unify them to one shape.

Next, as shown in FIG. 6, coloring 9 is applied to the area 5 to be colored as a parting material for the knob portion IO.

After the coloring 9 has dried, as shown in FIG. 7, the fence 11 having the tabs 10 is removed by hand or with a tool such as a cassotater. In addition, when the cross-sectional shape of the knob part 10 is rod-shaped as shown in the figure, the fence 11 having the knob part lO
can be easily torn off, making removal work easier.

In this way, the coloring 9 is applied only to the area 5 scheduled for coloring.

According to such a coloring method, since the knob lO becomes a parting part for applying the coloring 9, there is no need for a special masking member and the work to set it as in the first embodiment, which reduces the number of man-hours and costs. In addition to reducing the number of times, there is no need for special markings for separation.

Furthermore, the fence 11 prevents the color from protruding or bleeding into areas other than the area 5 to be colored, and the dividing line of the coloring 9 becomes clear, so that the appearance is good and the life of the product 1 is improved.

Furthermore, even if the shape and coloring shape of the weather strip 3 are complex, the fence 11 having the pre-formed tabs 10 can easily be colored.

In each of the above embodiments, the interior surface of the weather strip 3 is colored, but the present invention is not limited to this, and the exterior surface of the vehicle interior and both surfaces may be colored. One or both of the embodiments and other embodiments may be employed.

[Effects] As explained above, according to the coloring method of the present invention, the protrusions formed on the sealing member and the tabs of the fence are used for coloring, which reduces man-hour costs and improves marketability due to improved appearance. Improvement 7: The seal member can be easily colored regardless of its complicated shape or coloring shape.

[Brief explanation of drawings]

1 to 4 are explanatory diagrams showing one embodiment of the method of the present invention in the order of steps, and FIG. 1 is a partially [folded perspective view;
Figures 3 and 4 are cross-sectional views, and Figures 5 to 7 are explanatory diagrams showing other embodiments of the method of the present invention in the order of steps, respectively.
FIG. 5 is a partially sectional perspective view, FIGS. 6 and 7 are sectional views, FIG. 8 is a side view of an automobile, and FIG. 9 is an explanatory perspective view showing a conventional example. 3...Center weather strip (sealing member)
, 5... area to be colored, 6... concave groove,
7...Thin hinge, 8...Protrusion, 9.
...Coloring, 10...Knob section, 11...
····fence. Notebook 1 page) jIpe Jikiki B side note 9 gong

Claims (2)

[Claims] (1) On the surface of the sealing member, a concave groove surrounding the area to be colored and a protrusion on the outside adjacent to the concave groove integrally connected to the sealing member via a thin hinge are formed during molding of the sealing member. A method for coloring a sealing member for an automobile, characterized in that the area to be colored is colored using the protrusion as a parting material, and after drying, the protrusion is fitted into the groove. (2) On the surface of the sealing member, a fence having a tab surrounding the area to be colored is formed during molding of the sealing member, the tab is used as a parting material to color the area to be colored, and after drying, the fence is A method for coloring an automobile seal member, characterized in that the seal member is removed.