초록 ▼

Wheel-locking device, in particular for a pram, which includes at least one wheel unit (4) and a wheel-locking member capable of being displaced substantially parallel to the axle of the wheel and of coming into contact with the wheel rim in order to lock its rotational position, wherein the wheel u

Wheel-locking device, in particular for a pram, which includes at least one wheel unit (4) and a wheel-locking member capable of being displaced substantially parallel to the axle of the wheel and of coming into contact with the wheel rim in order to lock its rotational position, wherein the wheel unit (4) is linked to the frame of the pram by means of a vertical linking sleeve (12) and in that the locking member includes a movable finger (14a, 14b) actuated by a control shaft (15) which moves vertically inside the linking sleeve. A single action on the flexible rod 18 therefore simultaneously locks the two pivoting wheel units of the axle beam 3 in terms of rotation. In one embodiment, the same wheel units may be locked in a fixed direction by means of locking parts (32, 33) interacting with the notches (30) of the linking sleeve (12).

대표청구항 ▼

A wheel-locking device for a manually propelled vehicle which comprises: at least two freely orientable wheel units, each wheel having a rim with a plurality of recess means formed therein; a vertical sleeve member for each said wheel unit which is freely rotatably mounted on said vehicle for rotati

A wheel-locking device for a manually propelled vehicle which comprises: at least two freely orientable wheel units, each wheel having a rim with a plurality of recess means formed therein; a vertical sleeve member for each said wheel unit which is freely rotatably mounted on said vehicle for rotating around vertical axis and having means for attaching thereto a horizontal spindle for mounting said wheel; a control shaft mounted inside said vertical sleeve member for vertical movement between two positions; locking means for being moved in a direction substantially parallel to said horizontal spindle in response to said vertical movement of said control shaft; and manually actuatable control means for simultaneously acting on each control shaft so as to move said locking members to cooperate with said recess means of both wheel unit irrespective of their orientation.