Wire loop stitching machine head with cam-controlled staple supp

Details Wire loop stitching machine head with cam-controlled staple supp Wire loop stitching machine head with cam-controlled staple supp

1983-01-12

1984-12-04

Bell, Paul A.

Elongated-member-driving apparatus

With means to form member prior to penetration of work

With offset tools to deform members

227 82, 227 88, B27F 721, B27F 723, B27F 726

Patent

active

044859554

ABSTRACT:
A "loop"-type wire stitching machine head includes a reciprocating drive coupled to a staple-forming and driving means and to a wire feed means for feeding a length of staple wire to a holder and severing it. A bender forms the wire over the holder into a generally inverted U-shaped staple. A supporter with a rounded projection is then inserted between the legs of the staple and a drive bar deforms the bight portion of the staple over the projection into a curved loop portion and then drives the formed loop staple into an associated workpiece, retracting the supporter in the process. The supporter is biased to its supporting position and a guide plate guides its movement to that position. A cam positively holds the supporter in its supporting position during forming of the loop portion of the staple and effects positive movement thereof partway to its retracted position after formation of the loop portion to accommodate driving of the staple.

REFERENCES:
patent: 970461 (1910-09-01), Briggs
patent: 1252011 (1918-01-01), Maynard
patent: 1637357 (1927-08-01), Svenson
patent: 1897625 (1933-02-01), Svenson
patent: 2028840 (1936-01-01), MacKenzie
patent: 2543418 (1951-02-01), Morin
Interlake Instruction Manual for Champion Stitchers Form 1132 R5-80, 1980.

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