초록 ▼

A jack for lifting objects especially useful for lifting motorcycles utilizing a cross member having two spaced substantially parallel legs connected thereto forming a support member. A lever arm detachably connects to the support member. Movement of the lever arm from an upright position to a groun

A jack for lifting objects especially useful for lifting motorcycles utilizing a cross member having two spaced substantially parallel legs connected thereto forming a support member. A lever arm detachably connects to the support member. Movement of the lever arm from an upright position to a ground contacting position lifts the cross member from the ground, the weight of the lifted object urging the lever arm into the ground surface.

대표청구항 ▼

A jack for lifting an object particularly a motorcycle and the like from a ground surface comprising: a. cross member adapted to span the underside of the object; b. a pair of substantially parallel legs, angularly fixed to said cross member and spaced along the span of said cross member, said cross

A jack for lifting an object particularly a motorcycle and the like from a ground surface comprising: a. cross member adapted to span the underside of the object; b. a pair of substantially parallel legs, angularly fixed to said cross member and spaced along the span of said cross member, said cross member and said legs forming a support member; c. a lever arm detachably connectable to said support member in at least two juxtaposed positions adapted for movement from an upright position to a position where at least a portion of said lever arm contacts the ground surface, said lever arm having a first end portion connected to said support member and a second end portion having a ring whose diameter exceeds the width and breadth of said lever arm, the axis of said ring being oriented substantially parallel to the ground surface; and d. means for utilizing the weight of the object being lifted to urge said contact of said at least a portion of said lever arm with the ground surface.