US3842477A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cutter blade changing apparatus
Assignee: Gleason Works
•
Filing: 1973-08-27
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Granted: 1974-10-22
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Expires: 1993-08-27
Abstract
Abstract A combination of apparatus for facilitating the replacement of cutting blades in a face mill-type cutter head. After sharpening, each blade is carefully positioned in a special cartridge adapted to be mounted to the cutter head and also adapted to be held by, and temporarily stored on, a blade-changing device, the cartridges being held on the blade-changing device in the same relative, precisely-spaced relationships in which the cartridges are to be ultimately mounted on the cutter head. When the replacement blades are needed, the blade-changing device is brought into contact with the face of the cutter head and is held temporarily in a proper orientation thereto with each cartridge properly aligned with its respective mounting unit. The operator then slips each cartridge, without the need for reorientation, from its temporary support on the blade-changing device onto the respective blade mounting units of the cutter head. The blades and mounting surfaces of the cartridges are protected from damage and contamination by the blade-changing device, and so the cartridges are easily loaded onto the cutter head and readily fixed in properly precise position.
Inventors
- 👤 E Hunkeler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:28
CPC Classifications
B; B23; B23Q; B23Q3/00; B23Q3/18; B23Q3/02; B23Q3/10; B23Q3/12; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53909; Y10T29/53913; Y10T29/53978
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
181 words
A combination for changing blades in a face-mill type cutter head, said blades being removably held in cartridges, and said cutter head having mounting means for receiving a plurality of said cartridges, and for holding the cartridges so that the cutting edges of said blades extend above the face surface of the cutter head and are oriented in predetermined precisely-spaced relationship, said combination including a blade-changing device comprising: a base member; a plurality of supporting means spacially oriented on said base member, said supporting means being adapted to receive and support said cartridges in a spaced relationship corresponding to the relationship in which said cartridges are held on said cutter head; and alignment means for cooperatively engaging said cutter head when moved into properly-oriented contact therewith to position said supporting means in predetermined relationship to the mounting means of the cutter head, whereby, when said blade-changing device is in properly-oriented contact with the cutter head, cartridges supported by respective ones of said supporting means may be slipped, without reorientation, from said supporting means onto the mounting means of said cutter head.
Claim 2
Dependent Claim
181 words
A combination for changing blades in a face-mill type cutter head, said blades being removably held in cartridges, and said cutter head having mounting means for receiving a plurality of said cartridges, and for holding the cartridges so that the cutting edges of said blades extend above the face surface of the cutter head and are oriented in predetermined precisely-spaced relationship, said combination including a blade-changing device comprising: a base member; a plurality of supporting means spacially oriented on said base member, said supporting means being adapted to receive and support said cartridges in a spaced relationship corresponding to the relationship in which said cartridges are held on said cutter head; and alignment means for cooperatively engaging said cutter head when moved into properly-oriented contact therewith to position said supporting means in predetermined relationship to the mounting means of the cutter head, whereby, when said blade-changing device is in properly-oriented contact with the cutter head, cartridges supported by respective ones of said supporting means may be slipped, without reorientation, from said supporting means onto the mounting means of said cutter head.
Claim 3
Dependent Claim
26 words
The combination of claim 1 wherein each said supporting means of the blade-changing device comprises a cantilever post mounted to said base member by one end.
Claim 4
Dependent Claim
39 words
The combination of claim 2 wherein each cantilever post has a predetermined cross-sectional shape and wherein each cartridge adapted for cooperation therewith includes a hollow channel portion into which the unsupported end of a cantilever post can be received.
Claim 5
Dependent Claim
28 words
The combination of claim 2 wherein the mounting means of said cutter head comprises a plurality of cantilever elements, each mounted to the cutter head by one end.
Claim 6
Dependent Claim
38 words
The combination of claim 4 wherein each cantilever element has a predetermined cross-sectional shape and each cartridge adapted for cooperation therewith includes a hollow channel portion into which the unsupported end of a cantilever element can be received.
Claim 7
Dependent Claim
25 words
The combination of claim 5 wherein said cross-sectional shape includes at least one flat plane surface and said cartridge includes a mating flat plane surface.
Claim 8
Dependent Claim
55 words
the combination of claim 5 wherein each cantilever post mounted to the base member has substantially the same cross-sectional shape as each corresponding cantilever element mounted to the cutter head, and each cooperating cartridge has at least one hollow channel capable of receiving the unsupported ends of either or both cantilever posts and cantilever elements.
Claim 9
Dependent Claim
21 words
The combination of claim 1 wherein said supportizg means of the blade-changing device include means for releasably holding cartridges supported thereon.
Claim 10
Dependent Claim
13 words
The combination of claim 8 wherein said releasable holding means comprise detent means.
Claim 11
Dependent Claim
53 words
The combination according to claim 1 wherein said cutter head includes at least two orientation points and said alignment means comprises a plurality of spaced guide members, at least two of said guide members cooperatively engaging said orientation points when said blade-changing device and cutter head are properly oriented for sLipping cartridges therebetween.
Claim 12
Dependent Claim
42 words
The combination according to claim 1 wherein said alignment means further comprises releasable locking means, operable only when said blade-changing device is properly aligned with the cutter head, for maintaining said blade-changing device in temporary fixed position relative to the cutter head.
Claim 13
Dependent Claim
41 words
The combination according to claim 10 wherein at least one guide member includes releasable locking means for maintaining said blade-changing device in temporary fixed position relative to the cutter head when the guide members are cooperatively engaged with the orientation points.
Claim 14
Dependent Claim
30 words
The combination of claim 1 further comprising means for moving cartridges from said supporting mmeans to said receiving means when said blade-changing device and cutter head are in properly-oriented contact.
Claim 15
Dependent Claim
53 words
the combination of claim 13 wherein said moving means comprises a plurality of guideways in said base member corresponding, respectively, with each supporting means, and at least one push rod movable in each guideway for enagement with a cartridge for sliding the cartridge from the respective supporting means on to the cutter head.
Claim 16
Dependent Claim
30 words
The combination of claim 1 wherein said blade-changing device further comprises sheathing means for protecting the cutting blades held by cartridges being supported by respective ones of said supporting means.
Claim 17
Dependent Claim
24 words
The combination of claim 15 wherein said sheathing means comprises a recess in each supporting means for receiving the blades of cartridges supported thereby.
References Cited (Backward Citations)
US3368265A
Cited
US3741023A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-21 | 1978-04-22 | 1978-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-21 | 1982-04-22 | 1982-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-21 | 1986-04-22 | 1986-10-22 | $7700.00 | Window Closed / Lapsed |