Patent US3780601A successfully refreshed from Google Patents.
US3780601A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Planet carrier for planetary-gear transmission
Assignee: ZF Getriebe GmbH
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Filing: 1972-05-15
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Granted: 1973-12-25
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Expires: 1992-05-15
Abstract
Abstract A planet carrier mounted on a central shaft, in a transmission housing, comprises a disk with a toothed periphery matingly engaged by the complementarily crenellated periphery of a drum coaxial therewith, the drum serving as a support for a set of annular clutch or brake foils which are interleaved with similar foils on the surrounding housing. Several segments of the disk periphery are partly severed from the disk body to form tongues which are bent out of the disk plane toward the interior of the drum and are locked in place by radially inbent portions of the drum periphery.
Inventors
- 👤 H Dach
- 👤 K Bordowsky
- 👤 M Bucksch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:16
CPC Classifications
F; F16; F16H; F16H57/00; F16H57/08; F16H57/082
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
85 words
A planet carrier for a planetary-gear transmission, comprising a first member with a generally disk-shaped body centered on an axis, a generally cylindrical second member coaxially enveloping said first member, coupling means on said Second member operable to immobilize the latter with reference to an adjoining component, and pinion means off-axially carried on said first member; said body being provided with outer peripheral formations matingly engaged by inner peripheral formations of said second member whereby said members can be axially interfitted for positive rotary entrainment.
Claim 2
Dependent Claim
85 words
A planet carrier for a planetary-gear transmission, comprising a first member with a generally disk-shaped body centered on an axis, a generally cylindrical second member coaxially enveloping said first member, coupling means on said Second member operable to immobilize the latter with reference to an adjoining component, and pinion means off-axially carried on said first member; said body being provided with outer peripheral formations matingly engaged by inner peripheral formations of said second member whereby said members can be axially interfitted for positive rotary entrainment.
Claim 3
Dependent Claim
30 words
A planet carrier as defined in claim 1 wherein at least said second member is provided with deformed peripheral portions locking same against axial displacement relative to said first member.
Claim 4
Dependent Claim
50 words
A planet carrier as defined in claim 2 wherein said outer and inner peripheral formations are a set of teeth on said body and complementary crenellations on said second member, said deformed peripheral portions including inbent parts of several inwardly projecting crenellations bracketing respective peripheral segments of said first member.
Claim 5
Dependent Claim
38 words
A planet carrier as defined in claim 3 wherein said body has an outer face substantially flush with a rim of said second member, said peripheral segments being tongues bent out of the plane of said outer face.
Claim 6
Dependent Claim
24 words
A planet carrier as defined in claim 4 wherein said inwardly projecting crenellations are partly cut away to accommodate the tips of said tongues.
Claim 7
Dependent Claim
42 words
A planet carrier as defined claim 1 wherein said first member further comprises a mounting ring parallel to and axially spaced from said body, said pinion means having an axle held at opposite ends by said body and by said mounting ring.
Claim 8
Dependent Claim
29 words
A planet carrier as defined in claim 6 wherein said first member is provided with spider legs rigidly interconnecting said body and said mounting ring at peripherally spaced locations.
Claim 9
Dependent Claim
31 words
A planet carrier as defined in claim 6 wherein said pinion means includes a set of longer pinions and a set of shorter pinions each meshing with a respective longer pinion.
Claim 10
Dependent Claim
37 words
A planet carrier as defined in claim 8 wherein said body is provided with a plurality of peripherally spaced bosses projecting toward said mounting ring, said shorter pinions having axles received at one end in said bosses.
Claim 11
Dependent Claim
30 words
A planet carrier as defined in claim 1 wherein said second member has a crenellated profile, said coupling means including axially shiftable annular friction means positively guided by said profile.
References Cited (Backward Citations)
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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) | 1976-12-24 | 1977-06-25 | 1977-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-24 | 1981-06-25 | 1981-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-24 | 1985-06-25 | 1985-12-25 | $7700.00 | Window Closed / Lapsed |