Rotary lift adjustable basketball goal

Abstract

An adjustable basketball goal pivotally secured to a fixed support post with pairs of interengaged pivoted lever arms. A height adjustment mechanism is secured to the support post with a unidirectional activation connection bar extending therefrom pivotally interconnected to a pair of goal lever arm supports. A gear rack portion on the activation connection bar is positioned for registration within a double gear reduction drive engagement assembly having a user engagement crank arm extending therefrom providing selective directional rotation incrementally to elevate and lower the basketball goal in relation to the support post. A handle integrated automatic height adjustment braking system is provided assuring the goal assembly is retained in position during raising and lowering thereof.

1 . An adjustable basketball goal system for bi-directional height adjustment of a basketball goal assembly above a playing surface comprising in combination,
 a rigid vertical post support member,   a first goal support structure including a backboard, a first pair of parallel support arms pivotally connected to said backboard and to the rigid post support member,   a second goal support structure including said backboard, a second pair of parallel support arms pivotally connected to the backboard and the rigid post support member and extending there beyond defining a parallelogrammical with said first pair of parallel support arms,   an extension activation bar pivotally connected at one end to the second pair of parallel support arms free ends, and extending through and engaged by a rotary actuator height adjustment assembly secured to said rigid post support member, said rotary actuation height adjustment assembly comprises,   an open-ended housing having a synthetic friction guide cap and an interior friction guide pad channel, and pinion shaft assembly rotatably positioned therein comprising a crank handle, automatic braking assembly, a first pinion gear on said pinion shaft in communication with a reduction main gear in said housing, a second gear reduction pinion gear extending from said reduction main gear for engagement with a gear rack insert on said extension activation bar positioned inwardly of its free end wherein rotary movement by the rotary actuator height adjustment assembly raises and lowers the extension activation bar selectively engaging said second goal support structure for movement of the parallelogrammical structure and the basketball goal assembly pivotally secured thereto.   
     
     
         2 . The adjustable basketball goal as set forth in  claim 1  wherein said automatic braking assembly comprises,
 a braking disk, a ratchet assembly and socket, a bushing and adjustable compression spring cap locking assembly. 
 
     
     
         3 . The adjustable basketball goal set forth in  claim 2  wherein said ratchet assembly comprises,
 a selective stop positioned to engage the ratchet socket.