Patent US3813818A successfully refreshed from Google Patents.
US3813818A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Profile grinder
Assignee: Mazda Motor Corp
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Filing: 1972-10-12
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Granted: 1974-06-04
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Expires: 1992-10-12
Abstract
Abstract A profile grinder including an abrasive grinding wheel adapted to move laterally for controlling the amount of abrasion independently of a follower means located in contact with a template while maintaining the abrasion point aligned with the center of the abrasive wheel along a normal line extending through the point of contact of the follower means on the template, whereby more precise and efficient abrading operation is possible.
Inventors
- 👤 K Hayashi
- 👤 N Fujimoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:07
CPC Classifications
B; B23; B23Q; B23Q35/00; B23Q35/04; B23Q35/08; B23Q35/10; B23Q35/101; B23Q35/102; B24; B24B; B24B19/00; B24B19/08; B24B19/09; B24B19/095; Y; Y10; Y10S; Y10S451/00; Y10S451/919
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
343 words
A profile grinder, comprising: a machine base, a rotatable abrasive wheel, a spindle mounting said abrasive wheel for effecting abrasion on a work piece, drive means for rotating said abrasive wheel, a template having a cam face and beIng fixed in a predetermined position on a table supporting said work piece, follower means adapted to slide on said cam face of said template for guiding said abrasive wheel to a desired working point, first pressure means for resiliently urging said follower means against said cam face of said template, control means for moving said abrasive wheel relative to said follower means in the abrading direction for controlling the amount of abrasion while maintaining said follower means in a predetermined position in resilient contact with said cam face of said template, said follower means, said spindle and said control means being mounted on a wheel head, said wheel head being connected to a machine base by second pressure means, said follower means on said wheel head being urged against said cam face by the action of said first pressure means, to effectively control the depth of abrasion, said follower means, said pressure means, said spindle and said control means being positioned such that the direction of the force tending to urge said follower means toward said template coincides with the direction of the movement of said spindle with respect to said work piece to effectively control the depth of abrasion, said follower means and said spindle further being mounted such that a line extending through the point of contact of said follower means on said cam face of said template is in alignment with the direction of the force tending to urge said follower means against said template, and said follower means being in the form of a cylindrical ring having said spindle extending therethrough, the inner diameter of said ring being larger than the diameter of said spindle so as to provide a sufficient clearance to permit lateral movement of said spindle relative to said follower means for controlling the amount of abrasion.
Claim 2
Dependent Claim
343 words
A profile grinder, comprising: a machine base, a rotatable abrasive wheel, a spindle mounting said abrasive wheel for effecting abrasion on a work piece, drive means for rotating said abrasive wheel, a template having a cam face and beIng fixed in a predetermined position on a table supporting said work piece, follower means adapted to slide on said cam face of said template for guiding said abrasive wheel to a desired working point, first pressure means for resiliently urging said follower means against said cam face of said template, control means for moving said abrasive wheel relative to said follower means in the abrading direction for controlling the amount of abrasion while maintaining said follower means in a predetermined position in resilient contact with said cam face of said template, said follower means, said spindle and said control means being mounted on a wheel head, said wheel head being connected to a machine base by second pressure means, said follower means on said wheel head being urged against said cam face by the action of said first pressure means, to effectively control the depth of abrasion, said follower means, said pressure means, said spindle and said control means being positioned such that the direction of the force tending to urge said follower means toward said template coincides with the direction of the movement of said spindle with respect to said work piece to effectively control the depth of abrasion, said follower means and said spindle further being mounted such that a line extending through the point of contact of said follower means on said cam face of said template is in alignment with the direction of the force tending to urge said follower means against said template, and said follower means being in the form of a cylindrical ring having said spindle extending therethrough, the inner diameter of said ring being larger than the diameter of said spindle so as to provide a sufficient clearance to permit lateral movement of said spindle relative to said follower means for controlling the amount of abrasion.
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) | 1977-06-03 | 1977-12-03 | 1978-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-03 | 1981-12-03 | 1982-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-03 | 1985-12-03 | 1986-06-04 | $7700.00 | Window Closed / Lapsed |