| 摘要 |
<p>¢(truncated, as published)! The subject of the invention is a saving chain for chain saws, having a plurality of chain links which are linked together so as to be mutually pivotable in a common plane of extent and advance (which plane is the operating plane of the chain) and which links bear cutting elements. According to the invention, to facilitate replacement of damaged individual links, and to simplify the driving and guiding of the chain, the chain links are linked together in succession in a direct intermeshing fashion ¢i.e. not relying on fasteners to mediate the said linkage! of the successive chain links, along edge surfaces which extend transversely to the common plane of extent and advance (which plane is the operating plane of the chain), resulting in a chain structure which is resistant to flexure in the direction perpendicular to the said plane. In a preferred embodiment, each chain link (A, B) has a structure comprising at least three layers, with an inner core piece (K) and two side pieces (S, S') wherewith each core piece (K) has an outwardly and eventually downwardly directed curved-beak-like projection (1) at its "forward" edge (edge in the direction of forward ¢sic! movement of the chain), and has a hook-like projection (2) at its corresponding "rearward" edge which latter projection is outwardly and eventually downwardly directed and which ¢eventually (along its extent)! bends back in the "forward" direction; and further each core piece has an upper "rear" 21 recess (3) shaped complementarily to the said beak-like projection (1), to accommodate the beak-like projection (1) of the next "following" core piece (K) in the direction of the chain path, and a lower "forward" recess (4) which terminates in an articulation shaft (5) for pivotably engaging the hook-like projection (2) of the next "leading" core piece (K) in the direction of the chain path. In addition, at least two types of teeth may be provided on the chain links (A, B), as cutting elements. ¢Translator's note: truncated here.! 22</p> |
