Patent US5774018A successfully refreshed from Google Patents.
Patent US4072083A successfully refreshed from Google Patents.
US4072083A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Milling head
Assignee: Individual
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Filing: 1976-10-12
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Granted: 1978-02-07
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Expires: 1996-10-12
Abstract
Abstract A milling head having a shaft for attachment to a machine tool, and at least one cutting insert or bit, characterized in that the cutting insert is supported in a tiltable or swivelable holder having a swivel axis extending perpendicularly to the axis of rotation of the milling head. Stopping means is situated between the milling head and the holder, against which the holder rests in its working position. A cam plate is held in a stationary position such that the cam plate cooperates with the holder to tilt or swivel the latter along a portion of its arcuate movement thereby lifting the cutting insert off the surface to be machined. The stopping means may include travel limit elements that comprise a bore in the holder and a protruding pin which engages with the bore. Biasing means is provided in the form of a spring arranged so that it tends to bias the holder into its working position.
Inventors
- 👤 Jiri Cesal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:17
CPC Classifications
B; B23; B23C; B23C5/00; B23C5/02; B23C5/06; Y; Y10; Y10T; Y10T408/00; Y10T408/39; Y10T408/83; Y10T408/85; Y10T408/858; Y10T408/8595; Y10T409/00; Y10T409/30; Y10T409/309352; Y10T409/309408
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
157 words
A milling head comprising a shaft means for attachment to a machine tool, said shaft means defining a rotational axis, a tiltable holder means adapted to retain cutting means and defining a tilting axis extending perpendicularly to said rotational axis of said shaft means and mounting means operatively mounting said holder means relative to said shaft means so as to swivel said holder means along a portion of each revolution of the milling head means whereby the cutting means is lifted off from the surface to be machined, and in another portion of each revolution of the milling head means is engaging the surface to be machined, said mounting means further comprising camming means operatively associated with said holder means and with said mounting means, said camming means comprising a cam plate, and a cam follower means mounted relative to said cam plate for imparting said swivel motion of said holder means relative to said mounting means.
Claim 2
Dependent Claim
157 words
A milling head comprising a shaft means for attachment to a machine tool, said shaft means defining a rotational axis, a tiltable holder means adapted to retain cutting means and defining a tilting axis extending perpendicularly to said rotational axis of said shaft means and mounting means operatively mounting said holder means relative to said shaft means so as to swivel said holder means along a portion of each revolution of the milling head means whereby the cutting means is lifted off from the surface to be machined, and in another portion of each revolution of the milling head means is engaging the surface to be machined, said mounting means further comprising camming means operatively associated with said holder means and with said mounting means, said camming means comprising a cam plate, and a cam follower means mounted relative to said cam plate for imparting said swivel motion of said holder means relative to said mounting means.
Claim 3
Dependent Claim
26 words
The milling head of claim 1, wherein said mounting means comprise means to limit the arcuate travel of said holder means relative to said mounting means.
Claim 4
Dependent Claim
31 words
The milling head of claim 2, wherein said travel limit means includes an opening in said holder means, and a protruding pin extending from said mounting means for engaging said opening.
Claim 5
Dependent Claim
33 words
The milling head of claim 1, and further including biasing means operatively associated with said holder means to urge said holder means into its working position for engaging a surface to be machined.
Claim 6
Dependent Claim
35 words
The milling head of claim 1, wherein said cam plate is rotatably supported relative to said shaft means, and wherein said cam follower means extends outwardly from said holder means to engage said cam plate.
Claim 7
Dependent Claim
41 words
The milling head of claim 5, wherein said cam plate comprises a ring member having two arcuate surfaces extending at different levels on one side of said cam plate and two inclined surface portions interconnecting said arcuate surfaces to each other.
Claim 8
Dependent Claim
30 words
The milling head of claim 6, wherein said two inclined surface portions are spaced from each other in said ring member along an arc spanning an angle less than 180°.
Claim 9
Dependent Claim
30 words
The milling head of claim 6, wherein said two inclined surface portions are spaced from each other in said ring member along an arc spanning an angle of about 155°.
Claim 10
Dependent Claim
33 words
The milling head of claim 5, wherein said mounting means further include a radially extending arm connected to said cam plate, said arm being angularly adjustable and lockable relative to said cam plate.
Claim 11
Dependent Claim
35 words
The milling head of claim 5, wherein said cam plate comprises means to obtain a swiveling motion of said holder means in the forward direction relative to the direction of rotation of said holder means.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-02-06 | 1981-08-08 | 1982-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-06 | 1985-08-08 | 1986-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-06 | 1989-08-08 | 1990-02-07 | $7700.00 | Window Closed / Lapsed |