US 7,530,483 B2
Impact fastener tool with cap feed
Roger C. Bruins, Hudsonville, Mich. (US); Roger A. Vanden Berg, Hudsonville, Mich. (US); and Ross Kooienga, Hudsonville, Mich. (US)
Assigned to National Nail Corporation, Grand Rapids, Mich. (US)
Filed on Jun. 14, 2007, as Appl. No. 11/818,471.
Claims priority of provisional application 60/814182, filed on Jun. 16, 2006.
Prior Publication US 2007/0290022 A1, Dec. 20, 2007
Int. Cl. B25C 7/00 (2006.01)
U.S. Cl. 227—120  [227/135; 227/136] 19 Claims
OG exemplary drawing
 
1. A manually swingable hammer-type stapling tool for discharging a staple through a cap into a substrate, comprising:
an elongate housing having a striker movably mounted thereon;
a staple driving blade mounted on the housing and movable relative to the striker along a staple discharge path when the striker impacts against a surface of the substrate;
a staple magazine carried on said housing and containing a clip of staples urged toward the staple discharge path so that a leading staple of the clip is disposed in said staple discharge path below said driving blade;
a cap supply and feeding arrangement mounted on the housing for positioning a cap in a discharge position disposed below the leading staple and transversely intersecting the staple discharge path,
including a cap magazine for containing a large number of individual caps disposed in adjacent and joined edge-to-edge relationship to define a connected strip of caps;
said cap supply and feeding arrangement including a feeding mechanism automatically advancing a leading cap of said strip into said discharge position responsive to but after said striker impacts against said surface so that said tool is ready to carry out a subsequent impact-activated staple/cap discharge operation,
said feeding mechanism including an inertia energy moved activator to automatically initiate a cap advancing cycle in response to impacting of the striker and tool against said surface.