Joints and connections – Articulated members – Lockable at fixed position
Patent
1992-06-16
1993-03-30
Kundrat, Andrew V.
Joints and connections
Articulated members
Lockable at fixed position
403 97, 403 84, 403324, F16C 1100
Patent
active
051978172
ABSTRACT:
An improved linkage assembly (10) provides for locking the pivotable position of one member (12) relative to another member (14). The linkage assembly permits the unlocking of these members, their subsequent repositioning, and the reliable relocking in a desired position without utilizing tooling. The first member (12) includes a pair of spaced apart support flanges (24,26) each having a through aperture (28) therein defining a flange female spline (29). The second member (14) has an end (42) positioned between the pair of support flanges (24,26) and also includes a through aperture (46 ) defining a pair of second member female splines (47). A pair of control members (84,86) are each slidably moveable along the common axis (32) and extend through the respective flanges (24,26). Each control member (84,86) has a male splined portion (66) which normally engages both the respective flange female spline and the second member female spline to lock the rotatable position of the first and second members. When each of the control members (31) are pressed inward simultaneously, the male splined portions disengage the flange female splines to permit rotation of the first member about the common axis with respect to the second member.
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Krch Gary D.
Wood William B.
Barr Hardie R.
Fein Edward K.
Kundrat Andrew V.
Miller Guy M.
The United States of America as represented by the Administrator
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