SCREW DRIVER

The present invention relates to a screw driver to increase torque for screwing and the number of revolution. According to the present invention, the screw driver for screwing comprises: a shank having a tip; a rotation shaft having a joint groove joined to the shank and a journal; a handle perpendi...

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Bibliographic Details
Main Authors KANG, GEON WOO, HONG, JAE HUON
Format Patent
LanguageEnglish
Korean
Published 29.06.2015
Subjects
HAND TOOLS
MANIPULATORS
PERFORMING OPERATIONS
PORTABLE POWER-DRIVEN TOOLS
TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FORFASTENING, CONNECTING, DISENGAGING OR HOLDING
TRANSPORTING
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Summary:The present invention relates to a screw driver to increase torque for screwing and the number of revolution. According to the present invention, the screw driver for screwing comprises: a shank having a tip; a rotation shaft having a joint groove joined to the shank and a journal; a handle perpendicularly connected to the rotation shaft to rotate the rotation shaft; and a bushing joined to the journal of the rotation shaft to be rotated. A finger hole is formed through the handle to be eccentric to the center of the rotation shaft in order to allow the rotation shaft to be rotated by the rotation of a finger inserted into the finger hole around the fixated bushing. 본 발명은 나사를 돌리는 회전력을 크게 하거나 회전수를 향상시킬 수 있는 스크루 드라이버에 관한 것이다. 이러한 본 발명은 나사를 회전시키는 스크루 드라이버에 있어서, 팁을 갖는 섕크, 상기 섕크가 결합되는 결합홈 및 저어널을 갖는 회전샤프트, 상기 회전샤프트를 회전시키도록 직교로 연결된 손잡이, 상기 회전샤프트의 저어널에 회전가능하게 결합되는 부싱을 포함하되, 상기 손잡이에는 회전샤프트의 중심에 편심되도록 핑거홀이 천공되어 고정된 부싱을 중심으로 핑거홀에 삽입된 손가락의 회전에 의해 회전샤프트를 회전시키는 것이다.
Bibliography:Application Number: KR20130159370