Spring retainer for lock mechanism

  • US 5,820,178 A
  • Filed: 08/29/1997
  • Issued: 10/13/1998
  • Est. Priority Date: 07/19/1996
  • Status: Expired due to Fees
First Claim
Patent Images

1. A lock mechanism comprising:

  • an axial lock spindle having lugs extending longitudinally therefrom and a torsion spring mounted thereto for biasing said lock spindle towards a first position; and

    a spring retainer connected to said lock spindle and said torsion spring, said spring retainer including;

    a substantially planar retainer body having arcuate slots for connecting slots for connecting said retainer to the lock spindle for rotation therewith;

    a pair of outer tabs circumferentially spaced along a peripheral edge and extending from said planar retainer body to engage the torsion spring whereby rotation of the spindle applies biasing tension to the torsion spring; and

    a pair of radially inner tabs extending from and spaced around said retainer body at right angles to said outer tabs, said inner tabs disposed between the torsion spring and the lock spindle upon connecting said retainer to the lock spindle to maintain separation between the torsion spring and lock spindle thereby shielding the lock spindle from engagement by said torsion spring.

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