Pivot joint for a stroller frame

Details Pivot joint for a stroller frame Pivot joint for a stroller frame

1997-03-17

1998-06-16

Knight, Anthony

Joints and connections

Articulated members

Lockable at fixed position

403 84, 403 93, B62B 708

Patent

active

057659583

ABSTRACT:
A pivot joint for use in a stroller frame includes a stationary seat member, a pivotable seat member mounted pivotally on the stationary seat member, a spring-loaded retaining member disposed between and engaging the stationary seat member and the pivotable seat member, and an operating knob mounted on the pivotable seat member. The stationary seat member has a confining wall with an inner surface formed with a plurality of first engaging grooves. The pivotable seat member has a surrounding wall with an inner surface formed with a plurality of second engaging grooves, each of which is defined by first and second perpendicular walls. One of the first and second perpendicular walls has an inclined cam face. The retaining member has a peripheral edge formed with a plurality of teeth for engaging the first and second engaging grooves. Each of the teeth has a follower face confronting the cam face of a respective one of the second engaging grooves such that the cam faces push the follower faces so that the retaining member can be retracted entirely into the stationary seat member for disengagement from the pivotable seat member when the pivot seat member rotates relative to the stationary seat member in a certain direction.

REFERENCES:
patent: 4815740 (1989-03-01), Williams et al.
patent: 5039118 (1991-08-01), Huang
patent: 5133553 (1992-07-01), Divnick
patent: 5520474 (1996-05-01), Liu

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