Patent ID: 8590434

Claim:
A hand tool torsion adjustment structure comprising a main mechanism, a torsion release mechanism and a micro-adjustment mechanism; said main mechanism provided with a working rod and a tool handle, said tool handle formed with an accommodating space in the interior for receiving said working rod, said torsion release mechanism and said micro-adjustment mechanism, said working rod formed with a working head and a combination end to be positioned in said tool handle; said torsion release mechanism coupled with said combination end, a maximum torsion bearing value of said working rod able to be changed by different extents that said micro-adjustment mechanism pushes against said torsion release mechanism, and said micro-adjustment mechanism composed of a resisting member, an interacting member and at least one adjusting pinion, said accommodating space of said tool handle formed with female threads, said resisting member having an outer surface provided with male threads to be engaged with said female threads to enable said resisting member to be rotated and shifted for releasing or pushing against said torsion release mechanism, said resisting member having a shaft center portion bored with a polygonal hole for said interacting member to be inserted therein, said interacting member having one end disposed with a polygonal rod to be inserted in said polygonal hole, said interacting member having another end formed with a torus gear to be engaged with said adjusting pinion, said torus gear being larger than said adjusting pinion in diameter, said interacting member having a shaft center portion bored with a first polygonal adjusting hole exposed to a tail of said tool handle, said adjusting pinion formed with a second polygonal adjusting hole exposed to the tail of said tool handle.