Joints and connections – Articulated members – Lockable at fixed position
Patent
1998-07-30
1999-10-26
Kim, Harry C.
Joints and connections
Articulated members
Lockable at fixed position
403 91, 403145, 2482911, F16C 1104
Patent
active
059716525
ABSTRACT:
An articulated conduit joint (8) includes first and second arms (10, 12), defining first and second passages (106), pivotally coupled by a main clutched joint (14) for movement of the arms about a joint pin (78) defining a first axis (20). The main clutched joint includes a generally open central portion (70) located between first and second end portions (72, 74). Clutch plates (82, 84) in the first end portion are alternately keyed to the first end portion and the joint pin. A compression spring (100) within the second end portion biases the joint pin along the first axis and forces the clutch plates against one another. The first and second end portions are integral with the first and second arms so that relative pivotal movement of the arms about the first axis is frictionally resisted by the clutch plates sliding against one another. One or both of the arms may include a hollow arm extension (22) housed within an arm body (16) for movement about a second axis (24) passing along the passage within the arm. Clutch plates (32, 34) are keyed to the arm extension and the arm body in an alternating fashion and are biased against one another to provide frictional resistance to rotation of the arm extension within the arm body.
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Bartlett William H.C.
Brockhage Donald J.
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