Patent ID: 11879186
Assignee: SAURER SPINNING SOLUTIONS GMBH & CO. KG
Field: Textile and paper machines (Mechanical engineering)
Classification: CPC D | IPC D

Claim 0:
1. A drafting system unit for a spinning machine, comprising at least two weighting arms, which are pivotable between an operating position and an open position by a repositioning device,
characterized in that:
the at least two weighting arms are each connected to a single common retaining rod for conjoint rotation of the at least two weighting arms together with the single common retaining rod, which single common retaining rod is mounted on a retaining rod holder for common rotation together with the at least two weighting arms about the longitudinal axis of the retaining rod by the repositioning device, characterized in that the repositioning device has a knee lever assembly, which is operatively connected to the retaining rod and which is repositionable between a closing position associated with the operating position and an opening position associated with the open position, characterized in that the knee lever assembly has a first knee lever and a second knee lever,
the first knee lever being pivotable about a first joint axis, which is stationary relative to the retaining rod,
the first knee lever and the second knee lever being articulated to each other by a knee lever joint axis, and
the second knee lever having a knee lever portion spaced apart from the knee lever joint axis, which knee lever portion is connected to the retaining rod so as to transmit a rotational motion.