Replacement assembly of handle tool

• US 20080148909A1
• Filed: 12/26/2006
• Published: 06/26/2008
• Est. Priority Date: 12/26/2006
• Status: Active Grant

• Current Assignee: Jin-Tsai Lai
• Original Assignee: Jin-Tsai Lai
• Inventors: Lai, Jin-Tsai
• Granted Patent: US 7,467,575 B2
• Time in Patent Office: Days
• US Class Current: 81/177.85
• CPC Class Codes: B25B 15/02 operated by rotating the handle
• CPC Class Codes: B25B 23/0042 Connection means between screwdriver handle and screwdriver shaft
• CPC Class Codes: B25G 3/04 with detachable or separate socket pieces B25G3/12 takes precedence
• CPC Class Codes: B25G 3/18 comprising catches or pawls

Abstract

A replacement assembly of a handle tool comprises a handle having an axial receiving hole; an adjust unit; the adjust unit being formed with a resisting block; an opener head; the opener head having a buckling groove; a fixing unit installed at one end of the receiving hole for confining the adjust unit; the fixing unit having a positioning hole for receiving an opener head; the fixing unit having at least one through hole which is communicated to the positioning hole; wherein the resisting block enters into the buckling groove of the opener head from the through hole of the fixing unit. The fixing unit has a large head and a small waist; the adjust unit is engaged to the waist and is confined by the head to be combined with the handle.

Claims

1. A replacement assembly of a handle tool comprising:

a handle having an axial receiving hole;

an adjust unit;

the adjust unit being formed with a resisting block;

an opener head;

the opener head having a buckling groove;

a fixing unit installed at one end of the receiving hole for confining the adjust unit;

the fixing unit having a positioning hole for receiving an opener head;

the fixing unit having at least one through hole which is communicated to the positioning hole;

wherein the resisting block enters into the buckling groove of the opener head from the through hole of the fixing unit.

2. The replacement assembly of a handle tool as claimed in claim 1, wherein the fixing unit has a large head and a small waist;

the adjust unit is engaged to the waist and is confined by the head to be combined with the handle.

3. The replacement assembly of a handle tool as claimed in claim 1, wherein the fixing unit has a protrusion at an axial direction thereof;

and the handle has a slot for positioning the protrusion.

4. The replacement assembly of a handle tool as claimed in claim 1, wherein the handle has a buckling block;

and the adjust unit has a rib;

the buckling block and the rib serves for confining the adjust unit to rotate in a predetermined range.

5. The replacement assembly of a handle tool as claimed in claim 1, wherein a bottom of the positioning hole has a regular polygonal shape;

and a distal end of the opener head is also a regular polygonal shape corresponding to that of the positioning hole.