US3782041A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gear finishing apparatus
Assignee: Textron Inc
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Filing: 1972-03-07
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Granted: 1974-01-01
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Expires: 1992-03-07
Abstract
Abstract A gear tooth finishing machine wherein finishing tools are simultaneously brought into engagement with the edges of gear teeth and withdrawn therefrom as the gear is rotated and rotates a master gear which controls movement of the finishing tools.
Inventors
- 👤 E Batorski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:15
CPC Classifications
B; B23; B23F; B23F19/00; B23F19/10; B23F19/12
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
97 words
A device for simultaneously performing a finishing operation on the teeth of a work gear mounted to a shaft and rotatable thereon, comprising a base member, first and second finishing tools pivotally mounted to said base member to operate on opposite sides of the gear, a control gear adapted to be driven by the work gear, a contour cam mounted to said control gear, cam follower means responsive to the contour of said cam, and means responsive to said cam follower means for producing simultaneous motion of said finishing tools toward and away from the work gear.
Claim 2
Independent Claim
97 words
A device for simultaneously performing a finishing operation on the teeth of a work gear mounted to a shaft and rotatable thereon, comprising a base member, first and second finishing tools pivotally mounted to said base member to operate on opposite sides of the gear, a control gear adapted to be driven by the work gear, a contour cam mounted to said control gear, cam follower means responsive to the contour of said cam, and means responsive to said cam follower means for producing simultaneous motion of said finishing tools toward and away from the work gear.
Claim 3
Independent Claim
130 words
A device for simultaneously performing a finishing operation on the teeth of a gear mounted to a shaft and rotatable thereon, comprising first and second finishing tools mounted to operate on opposite sides of the gear and means for simultaneously moving said tools into and away from engagement with said gear as said gear is rotated so that said tools engage said gear on the edges of teeth thereof on opposite sides of said gear, a base member, first and second rocker arms pivotally mounted on said base member, said rocker arms carrying said tools, and a lever pivotally mounted on said base member and engaging said rocker arms so that movement of one of said rocker arms produces equal but opposite movement of the other of said rocker arms.
Claim 4
Independent Claim
130 words
A device for simultaneously performing a finishing operation on the teeth of a gear mounted to a shaft and rotatable thereon, comprising first and second finishing tools mounted to operate on opposite sides of the gear and means for simultaneously moving said tools into and away from engagement with said gear as said gear is rotated so that said tools engage said gear on the edges of teeth thereof on opposite sides of said gear, a base member, first and second rocker arms pivotally mounted on said base member, said rocker arms carrying said tools, and a lever pivotally mounted on said base member and engaging said rocker arms so that movement of one of said rocker arms produces equal but opposite movement of the other of said rocker arms.
Claim 5
Dependent Claim
42 words
The device of claim 2 further including means for driving one of said rocker arms toward the plane of the work gear, and spring return means for returning the other of said rocker arms away from the plane of the work gear.
Claim 6
Dependent Claim
42 words
The device of claim 2 wherein said base member is pivotally mounted to a gear generating machine having a spindle for supporting a work gear thereon, and said base member is pivotal in a plane perpendicular to the axis of the spindle.
Claim 7
Independent Claim
69 words
A device for performing a finishing operation on the teeth of a gear mounted to a shaft and rotatable thereon comprising first and second finishing tools, first and second rocker arms, means mounting said tools to said rocker arms, means for simultaneously pivoting said rocker arms to advance said tools toward opposite sides of the gear and retract said tools therefrom in timed relation with rotation of the gear.
Claim 8
Independent Claim
69 words
A device for performing a finishing operation on the teeth of a gear mounted to a shaft and rotatable thereon comprising first and second finishing tools, first and second rocker arms, means mounting said tools to said rocker arms, means for simultaneously pivoting said rocker arms to advance said tools toward opposite sides of the gear and retract said tools therefrom in timed relation with rotation of the gear.
Claim 9
Dependent Claim
29 words
The device of claim 5 wherein said mounting means includes means for varying the angle of the center line of the finishing tool with respect to the gear teeth.
Claim 10
Dependent Claim
31 words
The device of claim 5 wherein said mounting means includes means for varying the angular address of the finishing tool with respect to the radial center line of the gear teeth.
Claim 11
Dependent Claim
25 words
The device of claim 5 wherein said mounting means includes means for varying the distance between the finishing tool and the center of the gear.
Claim 12
Independent Claim
102 words
A device for performing a finishing operation on the teeth of a gear mounted to a shaft and rotatable thereon comprising first and second finishing tools, first and second rocker arms, means mounting said tools to said rocker arms, means for moving said rocker arms to simultaneously advance said tools toward opposite sides of the gear and retract said tools therefrom, a base member, said rocker arms being mounted to said base member, said base member being pivotal to a position to present said finishing tools to the gear and to a position where said finishing tools are removed from the gear.
Claim 13
Independent Claim
102 words
A device for performing a finishing operation on the teeth of a gear mounted to a shaft and rotatable thereon comprising first and second finishing tools, first and second rocker arms, means mounting said tools to said rocker arms, means for moving said rocker arms to simultaneously advance said tools toward opposite sides of the gear and retract said tools therefrom, a base member, said rocker arms being mounted to said base member, said base member being pivotal to a position to present said finishing tools to the gear and to a position where said finishing tools are removed from the gear.
Claim 14
Dependent Claim
112 words
The device of claim 9 further including a lever pivotally mounted on said base member, one of said rocker arms being carried on said lever, a control gear rotatably mounted to said base member and adapted to be engaged and driven by the gear, a contouring cam on said gear, tracing means on said lever adapted to follow said cam, said simultaneously moving means including a second lever between said lever and said other rocker arm adapted to produce equal and opposite movement of said lever and said rocker arm upon movement of one, means for moving said lever, servo means responsive to said tracing means for actuating said means for moving.
Claim 15
Dependent Claim
38 words
The device of claim 5 wherein each of said mounting means comprises a tool support member extending transversely from the rocker arm and rotatably positionable with respect thereto, and means supporting said tool on said tool support member.
Claim 16
Independent Claim
132 words
A device for simultaneously performing a finishing operation on the teeth of a gear mounted to a shaft and rotatable thereon, comprising a base member, first and second finishing tools carried on said base member and arranged to operate on opposite sides of the gear, a control gear rotatably mounted to said base member and adapted to engage the gear and be driven thereby, a contour cam on said control gear, tracer means carried in fixed relation to one of said tools adapted to follow said contour cam, and servo means responsive to said tracer for simultaneously moving said tools into and away from engagement with said gear as said gear is rotated so that said tools engage said gear on the edges of teeth thereof on opposite sides of said gear.
Claim 17
Independent Claim
132 words
A device for simultaneously performing a finishing operation on the teeth of a gear mounted to a shaft and rotatable thereon, comprising a base member, first and second finishing tools carried on said base member and arranged to operate on opposite sides of the gear, a control gear rotatably mounted to said base member and adapted to engage the gear and be driven thereby, a contour cam on said control gear, tracer means carried in fixed relation to one of said tools adapted to follow said contour cam, and servo means responsive to said tracer for simultaneously moving said tools into and away from engagement with said gear as said gear is rotated so that said tools engage said gear on the edges of teeth thereof on opposite sides of said gear.
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) | 1976-12-31 | 1977-07-02 | 1978-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-31 | 1981-07-02 | 1982-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-31 | 1985-07-02 | 1986-01-01 | $7700.00 | Window Closed / Lapsed |