Auxilary handle device for use with conventional handheld screwdrivers

An auxiliary handle device for use in conjunction with handheld screwdrivers of the type including a shaft and a handle having a plurality of longitudinally-oriented and alternating flutes and channels, the device comprising:

• a handle portion adapted for being grasped by a human hand;
• a coupling portion, said coupling portion selectively receiving a handle of a screwdriver, said coupling portion being operationally coupled to said handle portion such that rotation of said handle portion in a first direction imparts rotation in said first direction to said coupling portion and to the screwdriver in turn;
• said coupling portion further comprises a cylindrical perimeter wall forming a cavity portion, said cavity portion slideably receiving a portion of the handle of the screwdriver;
• said coupling portion further comprises a retaining means, said retaining means selectively securing the portion of the handle of the screwdriver to said coupling portion;
• and
• a leverage bar member operationally couplable to said coupling portion, said leverage bar member having a longitudinal axis, said leverage bar member being positioned such that said longitudinal axis of said leverage bar member is substantially perpendicular to a longitudinal axis of said handle portion when said leverage bar member is operationally coupled to said coupling portion, said leverage bar member facilitating application of additional torque to the screwdriver;
• wherein said retaining means further comprises a series of flutes positioned around an interior of said perimeter wall forming said cavity portion, said flutes being configured to be alienable with grooves extending along the handle of the screwdriver to inhibit rotation of the screwdriver relative to the coupling portion.

In combination:

• a handheld screwdriver including a shaft and a handle having a plurality of longitudinally-oriented and alternating flutes and channels;
• and
• an auxiliary handle device removably mounted on the screwdriver, the device comprising:
• a handle portion adapted for being grasped by a human hand, said handle portion having an exterior surface, said exterior surface having a substantially spherical portion and a substantially frustaconical portion positioned adjacent to said substantially spherical portion;
• and
• a coupling portion defining a cavity slidably and releasably receiving a portion of said handle of said screwdriver;
• a retaining means on said coupling portion for selectively retaining and securing said coupling portion to the portion of the handle of the screwdriver such that rotation of said handle portion and said coupling portion in a first direction imparts rotation in said first direction to said screwdriver in turn;
• wherein said retaining means further comprises a series of flutes positioned around an interior portion of said perimeter wall, said flutes being alignable with a series of grooves extending along the handle of the screwdriver, said flutes and the grooves inhibiting rotation of the screwdriver with reference to the coupling portion.