Plastic article or earthenware shaping or treating: apparatus – Preform assembly means and means for bonding of plural... – Reshaping means utilizing fluid pressure directly contacting...
Patent
1995-12-13
1998-12-08
Wu, David W.
Plastic article or earthenware shaping or treating: apparatus
Preform assembly means and means for bonding of plural...
Reshaping means utilizing fluid pressure directly contacting...
425292, 4253871, 425510, 425521, 425806, B28B 2136
Patent
active
058465782
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The present invention relates to equipment for producing a component, particularly for internal fittings of motor-vehicles, obtained by joining two sheets of thermoplastic material together.
The invention has been developed in particular for producing a component intended to form a storage compartment located at the bottom of the cover panel of a motor-vehicle door.
In this case, the fact that the component is produced from two sheets joined together is derived from the need to obtain a high quality part. Along the upper edge of the component constituting the pocket, the two sheets are separated by a cavity so as to obtain a thickened edge which gives the object the appearance of greater solidity and quality. In this case, the problem arises of producing the join between the two sheets in a position which is not visible when the component is mounted.
SUMMARY OF THE INVENTION
Although the invention has been developed in the specific case of a component constituting the storage compartment for a motor-vehicle door, it is not restricted to this specific area and can be applied in all cases in which the problem arises of producing a component formed of two sheets joined together with a thickened edge and in which it is desired to position the connection line in a zone which is not visible when the component is in its position of use.
In order to satisfy the above requirements, the subject of the present invention is equipment having the characteristics forming the subject matter of the main claim.
BRIEF DESCRIPTION OF THE DRAWINGS
Further characteristics and advantages of the present invention will become clear from the following detailed description, given purely by way of non-limiting example, with reference to the appended drawings, in which:
FIG. 1 is a schematic perspective view of a motor-vehicle door, provided with a component obtained by the equipment according to the invention;
FIG. 1a is a schematic section along the line I--I of FIG. 1;
FIG. 2 is a schematic side view of equipment according to the invention; and
FIGS. 3 and 4 are schematic side views illustrating the equipment of FIG. 2 in two different operating stages.
DETAILED DESCRIPTION OF THE INVENTION
Referring to FIGS. 1 and 1a, a cover panel applied to the inner part of a vehicle door 4 is indicated 2. The cover panel 2 has a component 6 which is spaced from a wall 8 of the panel so as to form a storage compartment. The component 6 can be separate from or integral with the panel 2.
Referring in particular to FIG. 1a, the component 6 comprises two sheets of thermoplastic material, indicated 10 and 12, which form a thickened edge 14 with a cavity 16. The sheets 10, 12 are joined together in correspondence with the thickened edge 14 along a connection line 18. An aesthetic covering 20 which extends to the connection line 18 is applied to the outer surface of the sheet 10. A second covering 22 may also be applied to the surface of the sheet 12 which faces the interior of the storage compartment.
For aesthetic reasons, the connection line 18 between the sheets 10, 12 and between the coverings 20, 22 should be located in a position which is not visible when the panel is assembled.
Referring now to FIGS. 2 to 4, equipment for producing the component 6 is indicated 24. The equipment 24 comprises an upper die 26 and a lower die 28 capable of relative movement in the directions indicated by the double arrow A in FIG. 2. In order to shape the edge 14 of the component 6, the dies 26 and 28 have respective working surfaces, indicated 30 and 32.
A slide 34 is able to move in a direction at right angles to the closure direction of the dies 26, 28 and has a working surface 36 which is intended to form a connection between the working surfaces 30 and 32. The movement of the slide 34 is independent of the relative movement between the dies 26, 28 and is controlled by a pressurized-fluid actuator, not shown in the drawings.
Referring to FIG. 2, the covering 22, if used, for the inner surface of the component 6, the inner
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