US3664210A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transmission mechanism and method of manufacture thereof
Assignee: BorgWarner Ltd
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Filing: 1970-07-17
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Granted: 1972-05-23
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Expires: 1990-07-17
Abstract
Abstract A torque transmitting member, and a transmission mechanism, such as an automatic transmission, in which the member is formed from sheet metal and comprises a central radial portion and forwardly and rearwardly axially extending portions connecting the member to elements of two planetary gear sets and to a torque transmitting shaft. The member may be formed by drawing an annular sheet metal part to form a radially and an axially rearwardly extending portion, severing sections in the area between these portions and bending the severed sections forwardly to form the forwardly extending portion.
Inventors
- 👤 James Morrison Laing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 03:00
CPC Classifications
F; F16; F16H; F16H57/00; F16H57/08; F16H57/082; Y; Y10; Y10S; Y10S475/00; Y10S475/901
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
106 words
A torque transmitting member for a transmission mechanism having a plurality of planetary gear elements and a torque transmitting shaft, said member being adapted to be connected to at least two of said gear set elements and to said shaft, said member being formed of sheet metal and comprising a central radial portion and forwardly and rearwardly extending axial portions, effective to connect said torque transmitting member to said two gear set elements and said shaft, and one of said extending axial portions being formed by partially severing sections from said other extending axial portion and subsequently bending said severed sections toward a desired axial direction.
Claim 2
Dependent Claim
106 words
A torque transmitting member for a transmission mechanism having a plurality of planetary gear elements and a torque transmitting shaft, said member being adapted to be connected to at least two of said gear set elements and to said shaft, said member being formed of sheet metal and comprising a central radial portion and forwardly and rearwardly extending axial portions, effective to connect said torque transmitting member to said two gear set elements and said shaft, and one of said extending axial portions being formed by partially severing sections from said other extending axial portion and subsequently bending said severed sections toward a desired axial direction.
Claim 3
Dependent Claim
46 words
A torque transmitting member as claimed in claim 1 wherein said forwardly extending portion is adapted to be connected to an element of one of said gear sets and said central radial portion is adapted to be connected to an element of said other gear set.
Claim 4
Dependent Claim
23 words
A torque transmitting member as claimed in claim 2, wherein said rearwardly extending portion has means formed thereon for connection to said shaft.
Claim 5
Dependent Claim
35 words
A torque transmitting member as claimed in claim 1, wherein said forwardly extending portion is formed by partially severing sections from said rearwardly extending portion, for example by punching and subsequently bending said portions forwardly.
Claim 6
Dependent Claim
96 words
A transmission mechanism comprising a plurality of planetary gear elements and a torque transmitting shaft, and a torque transmitting member connected to two of said gear set elements and to said shaft, said member being formed of sheet metal and having a central radial portion and forwardly and rearwardly extending axial portions, connecting said torque transmitting member to said two gear set elements and said shaft, and one of said extending axial portions being formed by partially severing sections from said other extending axial portion and subsequently bending said severed sections toward a desired axial direction.
Claim 7
Dependent Claim
96 words
A transmission mechanism comprising a plurality of planetary gear elements and a torque transmitting shaft, and a torque transmitting member connected to two of said gear set elements and to said shaft, said member being formed of sheet metal and having a central radial portion and forwardly and rearwardly extending axial portions, connecting said torque transmitting member to said two gear set elements and said shaft, and one of said extending axial portions being formed by partially severing sections from said other extending axial portion and subsequently bending said severed sections toward a desired axial direction.
Claim 8
Dependent Claim
47 words
A mechanism as claimed in claim 5, wherein said forwardly extending portion is connected to an element of one of said gear sets, said central radial portion is connected to an element of the other gear set and said rearwardly extending portion is connected to said shaft.
Claim 9
Dependent Claim
26 words
A mechanism as claimed in claim 6, wherein said shaft is formed with teeth and said rearwardly extending portion is provided with slots engaging said teeth.
Claim 10
Independent Claim
93 words
A method of forming a torque transmitting member for a transmission mechanism comprising the steps of (a) providing a tubular or annular shaped sheet metal part; (b) drawing a portion of said annular part to form a radially extending portion and a first axially extending portion; (c) partially severing portions from said part in the area between said radially and axially extending portions; and (d) bending said severed portions forwardly to provide second axially extending portions extending in the opposite direction from said radial portion as compared to said first axially extending portion.
Claim 11
Independent Claim
93 words
A method of forming a torque transmitting member for a transmission mechanism comprising the steps of (a) providing a tubular or annular shaped sheet metal part; (b) drawing a portion of said annular part to form a radially extending portion and a first axially extending portion; (c) partially severing portions from said part in the area between said radially and axially extending portions; and (d) bending said severed portions forwardly to provide second axially extending portions extending in the opposite direction from said radial portion as compared to said first axially extending portion.
Claim 12
Dependent Claim
27 words
A method as claimed in claim 8 including the steps of forming slots in said first axially extending portion to provide for connection to a transmission element.
Claim 13
Dependent Claim
33 words
A method as claimed in claim 8 including the further steps of welding said radially extending portion to a gear set element and welding said axially extending portion to another gear set element.
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) | 1975-05-23 | 1975-11-22 | 1976-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-23 | 1979-11-22 | 1980-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-23 | 1983-11-22 | 1984-05-23 | $7700.00 | Window Closed / Lapsed |