The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 08, 1980
Filed:
Nov. 08, 1978
Bernard P Kunka, Racine, WI (US);
George B Simonelic, Racine, WI (US);
Interlake, Inc., Oak Brook, IL (US);
Abstract
A wire stitching machine includes a head frame carrying a support, a staple former and a staple driver all reciprocally movable with respect to the head frame under the action of a single reciprocating drive bar coupled by crank mechanism to a rotary drive means. Wire feed rolls and a wire-supporting anvil are carried by the support. The support, staple former and staple driver are so coupled to each other and to the reciprocating drive bar that during a first portion of its drive stroke all three are moved to the associated workpiece and during a second portion of the drive stroke the support is arrested while the staple former and staple driver continue moving to form the staple and during a third portion of the drive stroke the staple former is arrested while only the staple driver continues moving to drive the formed staple into the workpiece. The anvil includes a forming shoe and is of integral one-piece construction movable as a unit between forming and driving positions. An improved clutch is provided for the rotary drive means, along with a finger guard coupled to the clutch which provides easy access and maximum working space to load the machine, yet provides effective guarding during stitching and prevents actuation of the clutch when a user's hand is in the stapling region.