Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – To produce composite – plural part or multilayered article
Reexamination Certificate
1999-07-29
2001-10-23
Ortiz, Angela (Department: 1732)
Plastic and nonmetallic article shaping or treating: processes
Mechanical shaping or molding to form or reform shaped article
To produce composite, plural part or multilayered article
C264S251000, C264S263000, C264S277000
Reexamination Certificate
active
06306328
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to a method for manufacturing a remote control device comprising a control cable that can move in a sheath.
This device is particularly intended to equip a motor vehicle to allow the remote-control of a member of the engine of this vehicle or an item of apparatus that this vehicle comprises, for example the cabin heating or air-conditioning apparatus.
DESCRIPTION OF THE PRIOR ART
It is very commonplace to employ a device of this kind to achieve remote control. At least at one of its ends, the cable comprises a connecting means, such as an end termination, fixed to it, providing a connection between the cable and the control member or the controlled member, and the sheath comprises, near at least one of its ends, a retaining means, such as a ring, for immobilizing it in terms of translation and, as appropriate, mounting it on the apparatus, one member of which is controlled, or on the component supporting the control member.
The connecting means is often fastened by crimping a metal component onto the cable while the retaining means is fastened to the sheath either by welding, punching, force-fitting or bonding.
Precise control of a member by means of such a device entails precise control of the relative position of said connecting and retaining means when the cable and the sheath are in a precise relative position. With current methods, this precise control proves difficult to achieve, particularly when the items have to be mass-produced. Furthermore, the cost of a device of this kind is relatively high.
SUMMARY OF THE INVENTION
The present invention sets out to overcome these essential practical drawbacks.
To this end, the method to which it relates comprises operations consisting in:
placing the cable and the sheath in a mold comprising two molding cavities and at least one positioning means; one of the cavities is shaped to allow said connecting means to be molded over the cable and the other cavity is shaped to allow said retaining means to be molded over the sheath, these two cavities being arranged a given distance apart that which corresponds to a distance to be obtained between this connecting means and this retaining means; the positioning means allow either the sheath or the cable or both to be positioned with respect to each of the corresponding molding cavities;
positioning the cable or the sheath, in so far as one or the other of these has not already been positioned during the previous operation, appropriately with respect to the corresponding molding cavity, and
closing the mold then molding the connecting means and the retaining means simultaneously.
The relative distance between these two means which has to be obtained is thus precisely determined by the relative distance between the mold cavities and by the positioning of the cable and of the sheath with respect to these cavities, and is so in the context of a manufacturing process that allows such devices to be mass-produced.
The connecting means and the retaining means are produced in the same molding operation, rather than in two successive operations as was the case in the prior art, which led to the introduction of inaccuracies into the relative position of these means and entailed a high cost price.
The invention also relates to the mold used for implementing this method and to the device obtained by this method.
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Baffert Didier
Cosmides Nicolas
Cantor & Colburn LLP
Ortiz Angela
Societe Europeenne de Frabrications
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