| 摘要 |
<p>In a method of manufacturing wheel rims, in particular for bicycle wheels, a section piece bent to a helical spiral having a plurality of windings is placed into a clamping band (2). This clamping band (2) is contracted in circular configuration to a diameter desired for the rim. Then the rim spiral is cut by a cirular saw (13) into a number of rims corresponding to the number of whole windings, and subsequently, after relief of the clamping band (2), both ends of each rim section formed by cutting are displaced laterally with respect to each other by means of displaceable fixtures (21) such that said ends are positioned opposite to each other. Thereafter the clamping band (2) is contracted again until both ends of each rim section abut and these ends are interconnected, for instance by means of dowel pins. The invention includes also an apparatus to perform this method.</p> |
