Mechanism for tightening and reinforcing the joint of a folding

Details Mechanism for tightening and reinforcing the joint of a folding Mechanism for tightening and reinforcing the joint of a folding

1982-07-08

1984-03-20

Hafer, Robert A.

Tent, canopy, umbrella, or cane

Canes, sticks, crutches, and walking aids

Folding

403100, A61H 302, F16C 1110

Patent

active

044374801

ABSTRACT:
Two sections of a structure are telescopically movable together and apart. When they are apart, the sections can be folded. When they are together, the ends of the section abut one another and transmit forces. A tubular end portion of one section slides into an annular space that is defined between a wall portion of the second section and a ring of collet jaws which surround such wall portion. A cam ring that is slidable on the second section is screw connected to a collet member of which the collet jaws are a part. Tightening of the cam ring causes a cam surface which it carries to apply laterally inwardly directed forces on the collet jaws, forcing them into tight squeezing contact with the tubular end portion of the second section.

REFERENCES:
patent: 39854 (1803-09-01), Wemple
patent: 595637 (1897-12-01), Kuhnke
patent: 905687 (1908-12-01), Gaskill
patent: 1068564 (1913-07-01), Carrington et al.
patent: 1233020 (1917-07-01), Beehler
patent: 1311145 (1919-07-01), Zeindler et al.
patent: 1334208 (1920-03-01), Ames
patent: 2426074 (1947-08-01), Watters
patent: 2484406 (1949-10-01), Gibson
patent: 2707477 (1955-05-01), Chapin
patent: 3239255 (1966-03-01), Murcott
patent: 3492999 (1970-02-01), Boyd
patent: 3655297 (1972-04-01), Bolen et al.
patent: 3886962 (1975-06-01), Diamontis
patent: 4253478 (1981-03-01), Husa

Affiliated with

Also associated with

Rating

Mechanism for tightening and reinforcing the joint of a folding does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Mechanism for tightening and reinforcing the joint of a folding , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mechanism for tightening and reinforcing the joint of a folding will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1598750