Exchangeable work assembly of a screwdriver and the method of using the assembly

Inactive Publication Date: 2005-04-21
WU CHIA TIEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0008] By such a manner, the use's fingers never touch the tip or the barrel so that the used tip and the

Problems solved by technology

However, the user must exchange the work assembly with his fingers so that the work assembly will dirty user's finger and the sweat on the user's fingers will make the work assembly rusted.

Method used

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  • Exchangeable work assembly of a screwdriver and the method of using the assembly
  • Exchangeable work assembly of a screwdriver and the method of using the assembly
  • Exchangeable work assembly of a screwdriver and the method of using the assembly

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Embodiment Construction

[0030] Referring to the drawings and initially to FIGS. 1-6, a screwdriver (4) usually comprises a handle (41), a shank (42) with a first end securely longitudinally inserted into the handle (41) and a second having a polygonal hole (not numbered) longitudinal defined in the shank (42), and an exchangeable work assembly attached to a free end of the shank (42). In the preferred embodiment, the polygonal hole is a hexagon hole.

[0031] The exchangeable work assembly of the present invention comprises a connector (14) partially received in the polygonal hole in the shank (42) of the screwdriver. The connector (14) comprises a polygonal block (not number) and the polygonal stub (not numbered) longitudinally extending from one end of the polygonal block. In the preferred embodiment of the present invention, the polygonal block is cubic, and the stub is hexagon and corresponding to the polygonal hole in the shank (42). The polygonal block has four sides and one of the sides has a steel ba...

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Abstract

An exchangeable work assembly of a screwdriver includes a connector partially received in the shank of the screwdriver and including a polygonal block and the polygonal stub longitudinally extending from one end of the polygonal block. The polygonal stub is received in the shank of the screwdriver. A first detaching block has a polygonal hole defined to selectively receive the polygonal block of the connector for detaching the connector from the shank after rotating. A barrel is connected to the polygonal block of the connector and has a polygonal hole defined to receive the polygonal block of the connector. A second detaching block is selectively connected to the barrel and has a hole defined to partially receive the barrel for detaching the barrel from the connector after rotating.

Description

BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates to an exchangeable work assembly, and more particularly to an exchangeable work assembly of a screwdriver and the method of using the assembly. [0003] 2. Description of Related Art [0004] A conventional screwdriver in accordance with the prior art usually comprises a handle, a shank securely and longitudinally inserted into the handle for connected to a work assembly. The work assembly includes a connector connected to a free end of the shank, a socket partially receiving the connector and a tip partially inserted in the socket for driving a work piece. The work assembly of the screwdriver can be exchanged for various work pieces. However, the user must exchange the work assembly with his fingers so that the work assembly will dirty user's finger and the sweat on the user's fingers will make the work assembly rusted. [0005] The present invention has arisen to mitigate and / or obviate the...

Claims

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Application Information

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IPC IPC(8): B25B23/00B25B27/14
CPCB25B27/14B25B23/00
InventorWU, CHIA-TIEN
OwnerWU CHIA TIEN