US4572047A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quick change slitter wheel holder
Assignee: Graphic Systems Services Inc
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Filing: 1984-05-31
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Granted: 1986-02-25
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Expires: 2004-05-31
Abstract
Abstract A quick-release mounting for a cutting wheel comprises a housing adjustably mounted in an arm, and a hollow shaft rotatably supported in the housing. The shaft has an expandable collet hub on which a wheel can be received. A mandrel extends within the shaft and has a tapered part to expand the collet hub; the mandrel is spring loaded toward expanding the hub, and a handle on the mandrel allows thrusting the mandrel in opposition to the spring load for release of a wheel. Locking members guard against accidental release of a wheel from the shaft, and an adjustable stop prevents over-tightening the collet hub. Adjustments of the mounting to mount or dismount a wheel and to change position thereof can all be accomplished without need for tools.
Inventors
- 👤 Dinesh G. Punater
- 👤 Gene E. Graves
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 02:18
CPC Classifications
B; B23; B23D; B23D35/00; B23D35/008; Y; Y10; Y10T; Y10T279/00; Y10T279/10; Y10T279/1004; Y10T279/1008; Y10T279/1037; Y10T279/1041; Y10T83/00; Y10T83/768; Y10T83/7747; Y10T83/7872; Y10T83/929; Y10T83/9372; Y10T83/9403; Y10T83/9457; Y10T83/9464; Y10T83/9469
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
176 words
In a holder for a sharpened cutting wheel having a concentric central aperture of predetermined diameter, said holder including a hollow shaft, a housing surrounding said shaft and including bearing means supporting said shaft for rotation, a collet at one end of said shaft and sized to fit closely within the aperture of the cutting wheel, means on said hub for locating the cutting wheel thereon, a mandrel having first and second ends and extending through said shaft, and locking means on said first end of said mandrel coacting with said collet hub to lock the cutting wheel on said hub; the improvement comprising spring means urging said mandrel in a direction to engage said locking means, means for moving said mandrel in opposition to said urging means to release said locking means for quick removal of the cutting wheel, and a retractable latch member on said collet hub spaced from said locating means and movable outward of said one end of said shaft to interfere with removal of the cutting wheel from said collet hub.
Claim 2
Dependent Claim
176 words
In a holder for a sharpened cutting wheel having a concentric central aperture of predetermined diameter, said holder including a hollow shaft, a housing surrounding said shaft and including bearing means supporting said shaft for rotation, a collet at one end of said shaft and sized to fit closely within the aperture of the cutting wheel, means on said hub for locating the cutting wheel thereon, a mandrel having first and second ends and extending through said shaft, and locking means on said first end of said mandrel coacting with said collet hub to lock the cutting wheel on said hub; the improvement comprising spring means urging said mandrel in a direction to engage said locking means, means for moving said mandrel in opposition to said urging means to release said locking means for quick removal of the cutting wheel, and a retractable latch member on said collet hub spaced from said locating means and movable outward of said one end of said shaft to interfere with removal of the cutting wheel from said collet hub.
Claim 3
Dependent Claim
41 words
A cutting wheel holder as defined in claim 1, wherein said means for moving said mandrel is a knob fixed to said second end of said mandrel, and said urging means is a spring acting between said housing and said knob.
Claim 4
Dependent Claim
91 words
A cutting wheel holder as defined in claim 1, wherein said locating means is a flange member extending outwardly from said shaft adjacent said collet hub, said hub is an expandable split collet and said locking means is a tapered section on said mandrel acting against the interior of said split collet to expand said collet against the aperture in the cutting wheel in response to axial movement of said mandrel within said shaft, and stop means on said mandrel limiting the action of said tapered section to expand said collet.
Claim 5
Dependent Claim
94 words
A cutting wheel holder as defined in claim 3, wherein said hollow shaft has at least one opening therein facing transversely to the axis of said shaft and located outboard of said collet hub, said latching member is a ball extending partially through said opening and normally held therein by said first end of said mandrel, and said one end of said mandrel having an undercut section normally spaced from said ball and movable under said ball to allow inward movement of said ball upon movement of said mandrel to release said locking means.
Claim 6
Dependent Claim
40 words
A cutting wheel holder as defined in claim 1, including means on said first end of said mandrel cooperating with said latch member to allow withdrawal of said latch member and removal of a cutting wheel from said collet hub.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-02-24 | 1989-08-26 | 1990-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-02-24 | 1993-08-26 | 1994-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-02-24 | 1997-08-26 | 1998-02-25 | $7700.00 | Window Closed / Lapsed |