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Shaft coupling for bottom cylinders of drafting units on spinning machines

  • US 5,380,118 A
  • Filed: 12/22/1992
  • Issued: 01/10/1995
  • Est. Priority Date: 02/21/1992
  • Status: Expired due to Fees
First Claim
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1. A spinning machine drafting unit bottom cylinder shaft coupling, comprising:

  • a first shaft with a plurality of shaft sections of different diameters at one of its ends, said diameters diminishing toward said end, anda second shaft with a plurality of bore sections at one of its ends, which are adapted to the respective shaft sections of different diameters of the first shaft so as to accommodate insertion of said end of the first shaft into said end of the second shaft,wherein one shaft section of said first shaft and one bore section of said second shaft have interengageable screw threads for connecting said shafts in a form-locking driving power transmission connection,wherein two unthreaded cylindrical sections of said first shaft and bore sections of said second shaft are provided with respective fits for forming centering surfaces, andwherein one of said fits is a clearance fit and the other of said fits is a press fit, said press fit and said interengageable screw threads being the only frictional connections of the shaft coupling.

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