US4781660A
Expired / Lapsed
US
⏱️ 0.0 years remaining
V-pulley for a continuously variable transmission
Assignee: Honda Motor Co Ltd
•
Filing: 1987-07-06
•
Granted: 1988-11-01
•
Expires: 2007-07-06
Abstract
Abstract A V-pulley is adapted for a continuously variable transmission which uses a chain belt composed of a plurality of chain blocks connected in its longitudinal direction, and a pair of V-pulleys operatively connected to each other through the chain belt. The V-pulley comprises a pair of conical pulley faces that the chain belt contacts, each of which is provided with a rough surface and a combination pattern of abrasion-prone and abrasion-resistant sections alternatively arranged at intervals shorter than the contact length and width of each chain block.
Inventors
- 👤 Atsushi Amataka
- 👤 Mikio Kubo
- 👤 Yoshitoshi Hagiwara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:50
CPC Classifications
F; F16; F16H; F16H55/00; F16H55/32; F16H55/36; F16H55/38; F16H55/52; F16H55/56; F16H9/00; F16H9/02; F16H9/24
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
91 words
A V-pulley apparatus adapted for a continuously variable transmission which uses a chain belt composed of a plurality of chain block connected in its longitudinal direction, and a pair of V-pulleys operatively connecting each other through the chain belt, comprising: a pair of conical pulley faces that the chain belt contacts, each face of which being provided with a rough surface and a combination pattern of abrasion-prone and abrasion-resistant sections alternately arranged at intervals shorter than the length and width of contact of each chain block with the respective pulley faces.
Claim 2
Dependent Claim
91 words
A V-pulley apparatus adapted for a continuously variable transmission which uses a chain belt composed of a plurality of chain block connected in its longitudinal direction, and a pair of V-pulleys operatively connecting each other through the chain belt, comprising: a pair of conical pulley faces that the chain belt contacts, each face of which being provided with a rough surface and a combination pattern of abrasion-prone and abrasion-resistant sections alternately arranged at intervals shorter than the length and width of contact of each chain block with the respective pulley faces.
Claim 3
Dependent Claim
33 words
The V-pulley apparatus as set forth in claim 1, wherein the combination pattern comprises hard and non-hard sections alternately arranged at intervals shorter than the contact length and width of each chain block.
Claim 4
Dependent Claim
37 words
The V-pulley apparatus as set forth in claim 1, wherein the abrasion-prone section is a matrix material of the pulley face and the abrasion-resistant section is formed by applying a special heat treatment into the matrix material.
Claim 5
Dependent Claim
31 words
The V-pulley apparatus as set forth in claim 3, wherein the special heat treatment is selected from means for concentrating heat energy at the locations where the abrasion-resistant sections are formed.
Claim 6
Dependent Claim
45 words
The V-pulley apparatus as set forth in claim 1, wherein the abrasion-prone sections are made of material having a good friction fitness for the material of the chain block and the abrasion-resistant sections are made of material having poor friction fitness for the chain block.
Claim 7
Dependent Claim
21 words
The V-pulley apparatus as set forth in claim 1, wherein the abrasion-resistant sections are formed in a continuous wave shape pattern.
Claim 8
Dependent Claim
20 words
The V-pulley apparatus as set forth in claim 1, wherein the abrasion-resistant sections are formed by a dispersed dot pattern.
References Cited (Backward Citations)
US955227A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-11-01 | 1992-05-02 | 1992-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-11-01 | 1996-05-02 | 1996-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-11-01 | 2000-05-02 | 2000-11-01 | $7700.00 | Window Closed / Lapsed |