Weight-lifting machine

DETAILED DESCRIPTION The present invention provides a weight-lifting machine which allows the user to advance a barbell or other engaging means through a wide range of motions.
The weight-lifting machine includes a base formed from two elongate base members spaced apart in parallel alignment by a crossmember.
A pair of vertically extending support members extend upwardly from the elongate base members at a rearward end of the base.
Each of a pair of first pivotal members is pivotally connected at one end to an upper end of a respective vertically extending support member so as to form a first set of pivot points.
The first pivotal members extend towards a front end of the base in parallel alignment and pivot about a horizontal axis extending through the first set of pivot points.
A cross-member extends between the first pivotal members to provide structural rigidity and to maintain the first pivotal members in parallel and planar alignment.
Each of a pair of second pivotal members is pivotally connected at an upper end thereof to each of the first pivotal members so as to form a second set of pivot points spaced apart from the first set of pivot points.
The second pivotal members pivot about a horizontal axis extending through the second set of pivot points.
Each second pivotal member comprises an upper arm and a lower arm angled apart from each other at an obtuse angle.
Linearly aligned apertures extend through each of the second pivotal members in both the upper arms and the lower arms.
The linearly aligned apertures are adapted to receive engaging means such as a barbell or handles which a user may engage or grasp in order to perform a weight-lifting exercise.
The cooperation of the second pivotal members pivoting about the second set of pivot points and the first pivotal members pivoting about the first set of pivot points allows a user to advance the engaging means such as a barbell through a wide range of motions each having a vertical component and a horizontal component.
Each of a pair of telescoping beam members is pivotally connected at one end to each of the vertically extending support members and at an opposite end to a respective second pivotal member