Tools – Wrench – screwdriver – or driver therefor – Machine
Patent
1993-09-29
1994-08-30
Meislin, D. S.
Tools
Wrench, screwdriver, or driver therefor
Machine
B25B 2304
Patent
active
053417062
ABSTRACT:
A screw-driving device, which can drive screws continuously one by one, comprises a casing coupled to a screwdriver, a slide member slidably moved in reciprocating movement in the casing and a mechanism for feeding a screw-holding tape by one-step pitches corresponding to the distances between the adjacent screws on the tape. The tape feeding mechanism includes a guide slot provided in the casing, and a two-arm lever pivotally connected to the slide member and pivotally moved to perform indexing of the screws to a position aligned with the screwdriver by a pin fitted into the inclined section of the guide slot. A pawl member with a pawl fitted into one of the grooves at one lateral edge of the tape is pivotally connected to the end of the other arm of the two-arm lever and is biased toward the tape by a spring. At the same time, a further pawl member entering one of the grooves at the opposite side of the tape is pivotally connected to the slide member and is biased toward the tape.
REFERENCES:
patent: 3910324 (1975-10-01), Nasiatka
patent: 4059034 (1977-11-01), Hornung
patent: 5083483 (1992-01-01), Takagi
patent: 5167174 (1992-12-01), Fujiyama et al.
Meislin D. S.
Toyo Techno Co., Ltd.
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