| 摘要 |
A metal carrier for a sealing or trimming strip or the like, for attachment to a flange surrounding a particular door or similar opening on a motor vehicle body, is manufactured from a longitudinal metal blank by performing thereon a number of different metal cutting operations. As shown in Figure 6, apertures 38 and 72 define the ends of a particular length of carrier though do not completely severe the metal blank. At a region 42, the blank is unslotted. Over regions 44,52 and 66, different formations of slots are cut. A diamond-shaped aperture is formed at 62. The various cutting processes produce a channel-shaped metal carrier (Figure 8) having different slot formations along its length and thus having different characteristics to suit the different requirements at particular positions around the door opening. The diamond-shaped aperture 62 produces a V-shaped notch where the carrier may be bent at right angles to form a sharp corner. Apertures 38 and 72 facilitate precise cutting off of the length of carrier. The cutting operations may be performed continuously and automatically, according to a predetermined program, along the length of the blank. <IMAGE> <IMAGE> |
