| 摘要 |
The invention relates to an apparatus for use of chain, comprising a chain, which is formed of : shaped pieces (1) to be connected to each other one after the other at jointing points (4, 5) in jointing parts (lb), existing at opposite ends of the shaped pieces, by means of joint pins, whereby a first jointing point of the jointing parts (lb) is arranged as a uniform projection assembly (4) that is essentially narrower than the width (L) of a center part (la) of the shaped piece, and a second jointing point as a fork assembly (5); and a drive arrangement, which includes at least one chain wheel (7), such as a drive wheel, a turning wheel or like. A supporting surface (1k) existing in the center part (la) of the shaped piece (1) belonging to the chain comprises a notch (2 ) that is arranged essentially crosswise in respect to the moving direction of the chain and that is during conveying of the chain in cooperation with counterpart surfaces (9) belonging to the chain wheel (7) and being arranged according to the notches (2a) of the chain and essentially crosswise in respect to the moving direction of the chain. A shaped piece belonging to the chain is arranged strengthened by an expansion assembly (X) protruding from a bottom (P) of the notch (2) and continuing uniformly in the longitudinal direction (s) of the shaped piece (1) at the point of the notch (2). |
