JP2554967B2 - Interior parts molding and its mounting method - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a molding for interior parts used as a terminal treatment of interior parts and a method for mounting the same.

[0002]

2. Description of the Related Art Interior parts of this type, for example, a molded ceiling 1 of an automobile as shown in FIG.
And a skin material 3 which is attached to the surface of the base material and imparts decorative properties and the like, and a molding 5 is attached to the terminal portion 4 of the molded ceiling 1 as described above. Appearance may be processed. The molding 5 has a substantially U-shaped cross section and is a long resin molding along the terminal portion 4, and is set and attached in a state in which the terminal portion 4 is inserted in the U-shape. As the mounting method, as shown in the figure, the tacker 6 may be used for fixing, or a double-sided adhesive tape or adhesive may be used for fixing. When the tacker is used, the tip of the molding portion 7 covering the end portion of the skin material 3 is turned over so that the cutter 6 does not appear on the front surface side, and the molding portion covering the end portion of the base material 2 is cut. 8 is stopped on the base material 2 side. When attaching the molding 5, the molding portion 8 may be temporarily fixed to the base material 2 side using the double-sided adhesive tape 9 or the like.

[0003]

[Problems to be Solved by the Invention] The mall 5 as described above
Is intended for the appearance treatment of the terminal portion 4, so it is necessary to prevent the tip of the molding portion 7, which is particularly easily visible, from coming into close contact with the skin material 3 and not forming a gap with the skin material 3, The U-shaped opening size cannot be set to be much larger than the thickness of the terminal portion 4. Therefore, in the work of setting the molding 5 on the terminal portion 4, the U-shaped opening is faced into the terminal portion 4 and pushed in. At this time, the distal end portion of the molding portion 7 slides to cause the terminal portion of the skin material 3 to slide. However, the workability was poor. Further, not only the tacker stop but also the work of attaching using the double-sided adhesive tape or the adhesive has to be performed while turning the tip end of the molding part 7 etc. as described above. A measure was desired. The above problems are more likely to be a problem because the longer the mall 5 is, the more difficult it is to set it on the terminal portion 4 and the tacker stoppers are required at a plurality of places.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to eliminate the above problems and provide a molding for interior parts having excellent mounting workability. The purpose is to make it unnecessary and reduce the number of mounting steps.

[0005]

In order to achieve the above object, the present invention comprises a long resin molding having a substantially U-shaped cross section, and a terminal portion of an interior part is provided in the U-shaped body. In the molding for interior parts that is fixed in the inserted state, the molding has a pre-foaming portion made of a foaming resin on at least a part of the inner wall of the molding. As a method of attaching the molding, the preliminarily foamed portion is foamed and solidified by loosely fitting the end portion of the interior part in a U shape and then heat-treated to sandwich the end portion in the molding. That is the summary.

[0006]

The above-mentioned molding for interior parts is made of a resin molded body having a substantially U-shaped cross section as in the conventional case, but is different in that it has a pre-foaming portion formed on the inner wall of the molding.
Usually, the U-shaped opening dimension is larger than the thickness of the terminal portion in the interior part, and the terminal portion is designed to be freely fitted. Then, the molding is set while being loosely fitted to the end portion of the interior part, and then heated to a predetermined temperature from the outer peripheral portion of the molding or the like. Then, as a result of the pre-foaming part being foamed and its volume being increased in accordance with the expansion ratio thereof, the gap in the U-shape is filled and the terminal part is sandwiched in the molding.

[0007]

EXAMPLES In the following, examples of the present invention will be described with respect to a molding treatment terminal for a molded ceiling. In FIGS. 1 and 2, a molded ceiling 10 as an interior part includes a base material 11 made of a resin board, a molded cardboard, or the like formed in a roof shape inside a vehicle, and a base material 11 attached to the surface of the base material for decoration. It is composed of a skin material 12 that imparts properties and the like. Molded ceiling 1
The terminal portion 13 of 0 is formed one step lower than the main portion,
It has an engaging projection 14 of an inverted concave shape which is provided in the middle part thereof and is provided along the longitudinal direction. On the other hand, the mall 1 of the present invention
Reference numeral 5 denotes a resin molded body formed by composite extrusion molding or the like, and includes a molding wall 16, a locking portion 17 and a locking portion 18a, which project from the inner surface of the molding wall 16 and form a part of the inner wall. 18b is made of a different resin material. The external shape of the molding 15 is substantially the same as the length of the terminal portion 13 of the molded ceiling 10, and is slightly curved in the longitudinal direction according to the shape of the edge portion of the terminal portion 13.

As the material of the molding wall 16, a relatively hard resin such as polypropylene or vinyl chloride resin is used as in the conventional case. The molding wall 16 has a substantially U-shaped cross section, and is positioned on both sides of the intermediate coupling portion 19 to cover the terminal portion of the skin material 13 and a molding portion 21 to cover the terminal portion of the base material 12. have. Further, the locking portion 17 and the locking portions 18a and 18b are pre-foaming portions obtained by aging foaming resin material beads for a certain period of time. Here, although vinyl chloride resin is used, other foaming resin is used. You can use wood. The locking portion 17 has a substantially triangular cross section, and is set so as to be positioned in the groove 14a of the engaging projection 14 in a state where the terminal portion 13 is loosely fitted in the U shape. The locking portions 18a and 18b are set so as to be located on both sides of the engagement protrusion 14. The sizes of the locking portion 17 and the locking portions 18a and 18b are determined in consideration of the foaming ratio, and the locking portion 18a and the molding portion 20 are also included.
The opening dimension L1 between and is larger than the maximum thickness of the terminal portion 13 (the portion of the engaging protrusion 14). Then, as will be described later, these are subjected to U foaming as shown in FIG.
The terminal portion 13 loosely fitted in the character shape is sandwiched with almost no space due to the increase in volume.

3 and 4 show examples of the method of attaching the molding 15 described above, and the present invention will be further described with reference to these. As shown in FIGS. 1 and 3, the setting operation of the molding 15 is performed by inserting the molding 15 into the terminal portion 13 so as to face the opening of the molding 15. In this work, for example, the long molding 15 is lifted and the fitting operation is sequentially performed from one side to the other side.
At this time, although the locking portion 17 and the locking portions 18a and 18b project into the molding wall 16, the opening dimension L1 is larger than the thickness of the terminal portion 13, so that the terminal portion 1
It is possible to insert the molding 15 smoothly with respect to 3. Therefore, unlike the conventional case, the skin material 12 is not turned over during the setting work, the engaging portion 17 is loosely fitted in the groove of the engaging protrusion 14, and the engaging portion is provided on both sides of the engaging protrusion 14. Because of the position of 18a and 18b, the mall 15
Is temporarily fixed.

After setting the mall 15 on the terminal unit 13,
Locking part 17 and locking parts 18a, 18 which are pre-foaming parts
b is heated to foam. This heat treatment is performed, for example, in FIG.
As shown in the imaginary line of FIG.
Heat to 0-100 degrees. Then, the locking portion 17 and the locking portions 18a and 18b are heated through the molding wall 16 and increase in volume according to the expansion ratio thereof as shown in FIG. 4, and the foam molding portions 23, 24a and 24b are U-shaped. The space 13 is almost completely filled and the terminal 13 is sandwiched in the mall. Mold 2
1, 22 are removed when the temperature drops to a predetermined temperature.
As described above, the molding 15 includes the foam-molded portions 23, 24a,
By forming 24b, it is assembled to the terminal portion 13 without any gap, and the locking portion 17 and the locking portions 18a, 18b are adhered and integrated with the terminal portion 13 in the process of foaming and solidifying. It can be installed nicely without rattling. Moreover, since the foam molding 23 fills the groove of the engaging projection 14 and the foam moldings 24a and 24b substantially enclose the projection of the engaging projection 14, the molding 15 is securely and firmly fixed.

5 and 6 show another embodiment of the present invention. The molded ceiling 30 as an interior part includes a base material 31,
It is the same as the previous example in that it is composed of the skin material 32, but the terminal portion 33 is formed flat with respect to the main portion, and the engaging concave portion provided on the base material 31 side along the longitudinal direction. It has 34. On the other hand, in the molding 35 of the present invention, the molding wall 36 is formed in a substantially U-shaped cross section having an opening larger than the thickness of the terminal portion 33, and has a pre-foaming portion 37 integrally formed on one side inner surface. . For the material of the molding wall 36,
A relatively hard resin such as polypropylene or vinyl chloride resin is used. The pre-foaming part 37 is a material in which foaming material beads are aged for a certain period of time, and here, a foaming vinyl chloride resin is used.

To set the molding 35, as shown in FIG. 5, the molding is inserted into the terminal portion 33 with the opening of the molding 35 facing. After setting the molding 35 on the terminal part 33, the pre-foaming part 37 is heated to foam as in the first embodiment.
Then, as shown in FIG. 6, the pre-foaming part 37 fills the gap from the upper side to the upper surface of the terminal part 33 on the inner wall of the molding wall 36 while increasing the volume in accordance with the foaming ratio thereof and engaging recesses. Fill the inside of 34. By forming the foam-molded portion 38, the molding 35 is assembled to the terminal portion 33 without a gap, and the pre-foamed portion 37 is formed, as in the first embodiment.
Since it is adhered and integrated with the terminal portion 33 in the process of being foamed and solidified, it can be attached aesthetically without rattling. Moreover, since the foam molding portion 38 fills the inside of the engagement recess 34,
The molding 35 is fixed with a predetermined strength.

In each of the above embodiments, an example in which the pre-foaming portion of the expandable resin is formed on a part of the inner wall of the molding is shown, but the pre-foaming portion can be formed on the entire inner wall of the molding. is there. The interior parts are not limited to the molded ceiling, but may be, for example, luggage boards.

[0014]

As described above, in the interior part molding of the present invention, the U-shaped opening dimension is larger than the end part of the interior part, and the end part of the interior part is freely fitted. Thus, the setting work for the terminal portion can be facilitated, and the appearance of the skin material can be prevented from being turned over in the conventional setting work, and the appearance defect can be reduced. Further, in the molding mounting method of the present invention, since the conventional double-sided adhesive tape or cutter stopper is not used, it is possible to reduce the number of parts, and by devising the heating method of the pre-foaming portion, the work man-hours can be easily reduced. be able to.

[Brief description of drawings]

FIG. 1 is a schematic perspective view showing a molding according to a first embodiment of the present invention set in a terminal portion of an interior component.

FIG. 2 is an enlarged sectional view showing the molding alone.

FIG. 3 is a cross-sectional view illustrating an example of a method for heating the molding.

FIG. 4 is a cross-sectional view showing a state in which the molding is attached to a terminal portion of an interior component.

FIG. 5 is a cross-sectional view showing a molding according to a second embodiment of the present invention set in a terminal portion of an interior component.

FIG. 6 is a cross-sectional view showing a state where the molding is attached to a terminal portion of an interior component.

FIG. 7 is a cross-sectional view showing a conventional molding attached to an interior component.

[Explanation of symbols]

 10, 30 Molded ceiling (interior parts) 13, 33 Terminal part 15, 35 Mold 17, 18a, 18b Locking part (preliminary foaming part) 37 Preliminary foaming part 23, 24a, 24b Foaming part 38 Foaming part

Claims (2)

(57) [Claims] 1. A molding for interior parts, comprising a long resin molding having a substantially U-shaped cross section, and fixed in a state in which a terminal portion of the interior part is inserted in the U-shape, the molding comprising: A molding for interior parts, characterized in that at least a part of the inner wall of the molding has a pre-foamed portion of a foaming resin. 2. A method for mounting an interior parts molding in which a terminal portion of the interior parts is inserted into a U-shape of a resin molding and then the molding is fixedly operated, wherein the molding is attached to at least a part of a molding inner wall. It has a pre-foaming part of a foaming resin, and the pre-foaming part is foamed and solidified by heat treatment after the end part of the interior part is loosely fitted into the U-shape, and the end part is molded. A method for mounting a molding for interior parts, which is characterized by being sandwiched inside.