Stock material or miscellaneous articles – Structurally defined web or sheet – Including grain – strips – or filamentary elements in...
Patent
1997-09-30
2000-08-01
Ahmad, Nasser
Stock material or miscellaneous articles
Structurally defined web or sheet
Including grain, strips, or filamentary elements in...
527165, 72 46, 72181, 264167, 26417111, 26417114, 264252, 296 93, 296135, 425113, 425465, 428 31, 428122, 428172, B32B 104
Patent
active
060964022
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to an elongate composite member having a cross-sectional shape which varies in its longitudinal direction, particularly an elongate composite molding which can be preferably used as a vehicle ornamental member, and also to a method of, and an apparatus for manufacturing the same.
BACKGROUND ART
Conventionally, there has been known an elongate composite member, such as a vehicle ornamental member, in which a resin part is continuously secured in the longitudinal direction to an elongate shaped body having a cross-sectional shape that varies in the longitudinal direction thereof. When used as a drip molding, the elongate composite member is comprised of a front portion extending along the front pillar panel of a vehicle body, a center portion along the roof panel and a rear portion along the rear pillar panel, which are connected into a unitary body with one another. Furthermore, it is a general practice that the center portion has a substantially constant cross-sectional shape while the front and rear portion have cross-sectional shapes which vary in the longitudinal direction thereof. That is, the center portion of the elongate composite member has a width which is constant in the longitudinal direction, though the front and rear portions have widths which gradually increase toward the front or rear end thereof from the width of the center portion. In this arrangement, it is preferable from the viewpoint of manufacturing technology, that the resin part has a cross-sectional shape which is substantially constant in its longitudinal direction, and the elongate shaped body has a cross-sectional shape which varies corresponding to the shape of the elongate composite member.
In order to manufacture an elongate composite member having a cross-sectional shape which varies in the longitudinal direction thereof, it has been customary to pre-form an elongate metal sheet into an elongate metal shaped-body and mold the resin part integrally with the shaped metal body by a so-called cast-injection molding process. Alternatively, the resin part which has been separately molded by an extrusion molding process is secured to the metal shaped body by an adhesive or the like. Such customary methods require large-sized press dies or injection mold. Accordingly, from a practical viewpoint, the integrally molded elongate composite member could not be made at once. The entire elongate composite member is thus divided into a plurality (typically, two or three) of pieces which are later joined with each other into a unitary body, with the result that the jointed lines are exposed to outside, thereby frequently degrading the appearance. Further, a manual work is indispensable in the case of fixing the resin part with an adhesive. In this instance, not only substantial man-hours are required, but also constant fixing can hardly be carried out, frequently causing the problem of degraded appearance. Accordingly, there has been a demand for an elongate composite member which is free from the above-mentioned problems.
SUMMARY OF THE INVENTION
The present invention has been achieved in view of the above-mentioned problems. It is a primary object of the present invention to provide an elongate composite member which can be simply and continuously manufactured by means of a simple facility and with a high productivity, and which is integrally formed in its entirety so as to exhibit an excellent appearance despite the cross-sectional shape of the elongate composite member which varies in the longitudinal direction thereof.
It is a subsidiary object of the present invention to provide a manufacturing technology which makes it possible to continuously manufacture an elongate composite member integrally formed in its entirety so as exhibit an excellent appearance, by a simple facility and with a high productivity, despite the cross-sectional shape of the elongate composite member which varies in the longitudinal direction thereof.
According to the present invention, there is provided an elon
REFERENCES:
patent: 4830898 (1989-05-01), Smith
patent: 4865676 (1989-09-01), Kimura et al.
patent: 5804118 (1998-09-01), Yada et al.
patent: 5837297 (1998-11-01), Yada et al.
Ahmad Nasser
Hashimoto Forming Industry Co. Ltd.
Jessen Derek
LandOfFree
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