Tools – Wrench – screwdriver – or driver therefor – Machine
Patent
1991-08-08
1992-06-30
Meislin, D. S.
Tools
Wrench, screwdriver, or driver therefor
Machine
81 573, B25B 1700
Patent
active
051252970
ABSTRACT:
A hand tool for use in loosening and tightening the wheel nut comprises a main body, a first cover body, a first shaft bearing, a second cover body, a second shaft bearing, a first drive member, a second drive member, a transmission, and a positioning means. The first cover body and the second cover body serve to accommodate therein respectively a shaft bearing to support the first drive member and the second drive member so as to provide the hand tool with a speeding and torguing advantage. The positioning means consists of a set rod and a support rod, thereby providing the hand tool with to actuate the main body and the second drive member in order to overcome the situation in which a high speeding motion and a low torguing motion take place.
REFERENCES:
patent: 3992964 (1976-11-01), Osmond
Bai Dawn
Huang Claude
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