Trim and producing method thereof

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS OF THE PRESENT INVENTION The present invention provides a trim including a core member made of a metal network in which connecting portions are partially and totally broken in a transverse direction and separated from each other in a longitudinal direction.
The present invention also concerns a method for producing such a trim.
The connecting portions of the metal network are broken by applying both a tension force in the longitudinal direction of the trim and a bending force in the transverse direction thereof after the metal network has been covered with its covering material, such as, for example, rubber or synthetic resin.
According to the present invention the trim can be freely curved at the broken connecting portions of the core member so that the flexibility of the trim is greatly improved as compared with that of conventional trims where the core member is continuously connected like a net.
It should be noted that the metal network comprising the core member of the trim made according to the present invention has many wave like shapes including many alternating raised and depressed portions.
Thus, the core member does not slip relative to the covering material even when the trim is attached along a corner having a large curvature.
Accordingly, the trim of the present invention exhibits excellent shape-retentivity.
Turning to FIGS.
1-5, the expanded sheet of metal A.
sub.
2 includes a plurality of spaces 2 and connecting portions 3, which are at this stage of manufacture disposed like a net and serve to hold the sheet together.
A plurality of spaces 2 having a lozenge or diamond shape are linearly disposed in the transverse direction of the expanded sheet A.
sub.
2 and a plurality of connecting portions 3 are also linearly disposed in the transverse direction thereof.
The expanded sheet A.
sub.
2 can be obtained from a band-shaped sheet A.
sub.
1 shown in FIG.
2.
Such a sheet has been perforated with a plurality of transversely extending slits 1 each having a predetermined length across the band-shaped sheet A