Patent ID: 9555309
Date: 2017-01-31
CPC Classifications: A63B

Claim:
1. A jerk block apparatus formed from two lifting stations, each said lifting station comprising: a support member having an upper surface and a lower surface; a support base having first and second sidewalls and first and second end walls forming a rectangular frame; a lifting mechanism formed from a first forward support strut defined by a proximal end pivotally secured to said first sidewall of the frame and a distal end slidably secured to the lower surface of the support member and a second forward support strut having a proximal end pivotally secured to the second sidewall of the frame and a distal end slidably secured to the lower surface of the support member; a first rear strut having a first end pivotally secured to the bottom of the support member and a distal end slidably secured to the first sidewall of the frame, and a second rear strut having a first end pivotally secured to the bottom of the support member and a distal end slidably secured to the second sidewall of the frame; a tie beam pivotally coupling said first and second front support struts to said first and second rear support struts; a cross support secured to said first and second front support struts positioned between said tie beam and said proximal ends of first and second support struts; an actuator having a first end secured to said first end wall of said frame and a second end secured to said cross support, said actuator constructed and arranged to push the cross support causing said struts to pivot along said cross support raising said support member above said base support; a laser pointer directed from a side of a support member for engaging a side of an adjoining support member, said laser pointer illuminating a mark on the side of the adjoining support member to indicate both support members are positioned at the same height; wherein said two lifting stations are placed adjacent to each other with the upper surface of each said support member available for receipt of a barbell whereby the upper surfaces can be raised or lowered by the actuator.