Elongated-member-driving apparatus – With control means responsive to sensed condition – Work-responsive
Patent
1999-09-01
2000-05-30
Smith, Scott A.
Elongated-member-driving apparatus
With control means responsive to sensed condition
Work-responsive
227131, B27F 736
Patent
active
06068173&
ABSTRACT:
A simple type power stapler has a main body 1, a punching arm 2, a housing frame 3, a hanging means 8 having a hook member 81 engaging with an upper portion of the punching arm 2 and a support portion 80 for supporting a lower portion of the housing frame 3, and a pushing member movable vertically by a motor 5 wherein a pair of support frames 22 are provided above the punching arm so as to accommodate the vertically movable pushing member; the punching arm 2 and the housing frame 3 descend by their own weight to lower their front end side F so that a lower surface 32 of the front end of the housing frame 3 pushes an upper surface of an object to be stapled W when the pushing member is moved downward; and the distance between the hook portions 81 and the support portion 80 of the hanging means 8 is determined to have a dimension which allows the downward movement of the front end side F of the punching arm 2 caused by the movement of the pushing member to its lowest position whereby staple pins P are punched out through the punching outlet 30 by means of the staple pin punching plate 20.
REFERENCES:
patent: 5007572 (1991-04-01), Chung-Cheng
patent: 5012967 (1991-05-01), Johansson
patent: 5195671 (1993-03-01), Shimomura et al.
patent: 5222645 (1993-06-01), Sueda
patent: 5427296 (1995-06-01), Chen
patent: 5657918 (1997-08-01), Shimomura et al.
patent: 5671879 (1997-09-01), Lin
Aska Corporation Ltd.
Smith Scott A.
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