Patent ID: 8266936
Filing Date: 2012-09-18
Classification: E05B,Y10T

Abstract:
1. A key having one end secured to a yoke that is mounted between first and second cheeks of a casing to pivot between a retracted position and an extended position about a pivot and a control pushbutton for controlling pivoting of the key, which pivot and pushbutton are mounted in a bore of the yoke and respectively in a housing in the first cheek and in a housing in the second cheek, the control pushbutton being constrained to pivot with the yoke and the pivot being indexed in pivoting in the housing in the first cheek to form a member for indexing a spring interposed between the pivot and the control pushbutton to urge the yoke resiliently into the extended position and to urge the control pushbutton into a position where it projects from the casing, wherein the pivot includes at least one stud received in a first groove of the housing in the first cheek, wherein a second groove is formed over a length in the housing in the second cheek, and wherein the first and second grooves of the housings in the first and second cheeks are arranged to open out into ends of third grooves in the bore at at least one intermediate position of the yoke.