Golf putting training aid

Abstract

A golf putting training aid includes a base frame having a sidewall, a collimator plate defining a collimator face, a positioning mechanism for holding the collimator plate and moving it in a parallel manner toward or away from the sidewall and locking the collimator plate in the desired position, a ball-hole table having a tabletop, a sliding groove extending around the tabletop and ball holes located on the tabletop in communication with the sliding groove, a ball lane covering the bottom panel of the base frame and the tabletop, and a track connected between the sliding groove and the end plate of the base frame.

What the invention claimed is: 
     
         1 . A golf putting training aid, comprising:
 a base frame comprising a sidewall;   a collimator plate comprising a collimator face at a front side thereof; and   a positioning mechanism adapted to hold said collimator plate at a front side relative to said sidewall, to move said collimator plate in direction toward or away from said sidewall in a parallel manner and to lock said collimator plate relative to said sidewall.   
     
     
         2 . The golf putting training aid as claimed in  claim 1 , wherein said positioning mechanism comprises one of the following structures a˜e:
 a) comprising two guide sleeves affixed to said sidewall, two sliding axles respectively inserted through said guide sleeves and affixed to said collimator plate, and two wing thumb screws respectively installed in said guide sleeves for locking said sliding axles to said guide sleeves; 
 b) comprising two links inserted through said sidewall and connected to said collimator plate in parallel, two pressure springs respectively mounted on said links and stopped between said sidewall and said collimator plate, a guide sleeve affixed to said sidewall, a sliding axle inserted through said guide sleeve and connected with said collimator plate, and a wing thumb screw installed in said guide sleeve and adapted for locking said sliding axle to said guide sleeve; 
 c) comprising two hydraulic cylinders affixed to said sidewall, each said hydraulic cylinder comprising a piston rod inserted through said sidewall and connected with said collimator plate, a guide sleeve affixed to said sidewall, a sliding axle inserted through said guide sleeve and connected with said collimator plate, and a wing thumb screw installed in said guide sleeve and adapted for locking said sliding axle to said guide sleeve; 
 d) comprising a cross-linkage coupled between said sidewall and said collimator plate, a guide sleeve affixed to said sidewall, a sliding axle inserted through said guide sleeve and connected with said collimator plate, and a wing thumb screw installed in said guide sleeve and adapted for locking said sliding axle to said guide sleeve; and 
 e) comprising two guide sleeves affixed to said sidewall, two racks respectively inserted through said guide sleeves and connected with said collimator plate, and two lock pins respectively mounted in said guide sleeves and adapted for locking said racks to said guide sleeves. 
 
     
     
         3 . The golf putting training aid as claimed in  claim 1 , wherein said collimator plate comprises a plurality of equally spaced marks marked on a top edge thereof. 
     
     
         4 . The golf putting training aid as claimed in  claim 1 , further comprising:
 a ball-hole table comprising a tabletop, a sliding groove extending around said tabletop, and at least one ball hole located on said tabletop and kept in communication with said sliding groove; and   a ball lane covered on a bottom panel of said base frame and said tabletop of said ball-hole table, said ball lane comprising at least one hole respectively aimed at said at least one ball hole.   
     
     
         5 . The golf putting training aid as claimed in  claim 4 , wherein said base frame comprises an opening located on said sidewall near one end thereof, an end plate obliquely backwardly extended from one end of said sidewall adjacent to said opening, and a track connected to a bottom side of said sidewall, said track having one end thereof connected to said end plate and an opposite end thereof connected to said sliding groove. 
     
     
         6 . The golf putting training aid as claimed in  claim 5 , wherein said track comprises a plurality of channel rails connected in a line.