Rifle scope with adjustment knob having multiple detent forces

  • US 7,415,791 B2
  • Filed: 04/08/2006
  • Issued: 08/26/2008
  • Est. Priority Date: 12/21/2005
  • Status: Active Grant
First Claim
Patent Images

1. A rifle scope comprising:

  • a body;

    a plurality of optical elements in the body;

    an adjustment knob rotatably connected to the body;

    the adjustment knob being connected to at least one of the optical elements, such that an image shift is generated in proportionate response to rotation of the adjustment knob;

    a detent mechanism operationally engaged to the adjustment knob;

    the detent mechanism having a plurality of detent positions;

    each detent position having a corresponding detent force by which the detent mechanism resists movement;

    the detent force for a first plurality of the detent positions having a first value;

    the detent force for a second plurality of the detent positions having a second value greater than the first value;

    wherein the detent mechanism includes a first surface portion having a first plurality of similar evenly spaced ridges for engagement by a first spring biased contact element; and

    wherein the detent mechanism includes a second surface portion having a second plurality of ridges for engagement by a second spring biased contact element, and wherein there are fewer second elements than first elements.

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