Patent attributes
A base has a primary leg with a rear cross bar positionable on the ground. The primary leg has a raised forward end. The base has a secondary leg with a front cross bar positionable on the ground. The secondary leg is pivotably coupled to the primary leg. A seat rest is secured to the upper surface of the primary leg. A back rest is secured to the upper surface of the primary leg. A rearward adjustment assembly includes a pair of parallel adjustment bars with an upper pivot tube. The upper pivot tube pivotally couples the upper ends of the adjustment bars to the back rest. A slider is slidable along the primary leg. The adjustment bars are coupled to the slider beneath the primary tube. The adjustment bars couple the adjustment bars to the slider. In this manner pivoting of the back rest is allowed.