Cutting – Tool or tool with support – Cutting couple type
Patent
1992-10-07
1994-07-19
Seidel, Richard K.
Cutting
Tool or tool with support
Cutting couple type
8369871, B26F 114
Patent
active
053298357
ABSTRACT:
An adjustable length punch set assembly for adjusting the overall length of a punch having a punch driver and punch holder that are axially adjustable relative to each other and retained at least in part within a punch guide sleeve and biased axially with respect thereto by a biasing spring. A locking push button is positioned axially within and accessible through a hole of the punch driver, the push button being moveable between a first position for locking the punch driver with respect to the punch holder to prevent length adjustment by rotation of mutually engageable threaded portions thereof, and a second position allowing relative rotation of the punch driver and punch holder along the mutually engageable threaded portions to effect length adjustment. The push button includes one or more detents formed thereon, the detents being engageable with one or more first detent stop(s) formed in the punch driver and second detent stop(s) formed in the punch holder. The number of second detent stops in the punch holder preferably is less than the number of first detent stops of the punch driver, such that the number of first detent stops in an integer multiple of the one or more detents of the push button. A spring is provided for biasing the locking push button into the first position. The spring is depressible by an external force applied through the hole in the punch driver to the push button thereby moving the push button into the second position.
REFERENCES:
patent: 3848496 (1974-11-01), Stevens et al.
patent: 3926082 (1975-12-01), von Langendorff
patent: 4012975 (1977-03-01), LaLone
patent: 4031787 (1977-06-01), Cady
patent: 4141264 (1979-02-01), Weisbeck
patent: 4375774 (1983-03-01), Wilson et al.
patent: 4440052 (1984-04-01), Weisbeck
patent: 5020407 (1991-06-01), Brinlee
patent: 5054347 (1991-10-01), Johnson et al.
Morehead John H.
Schultz Michael W.
Timp Richard L.
Peterson Kenneth E.
Seidel Richard K.
Wilson Tool International Inc.
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