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US4846768A Expired / Lapsed US ⏱️ 0.0 years remaining

Variable-speed driving device

Assignee: Honda Motor Co Ltd
•
Filing: 1988-01-11
•
Granted: 1989-07-11
•
Expires: 2008-01-11
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Abstract

Abstract A variable-speed driving device particularly adapted for an automotive internal combustion engine and associated AC generator. The device includes a driver shaft, such as the crankshaft, a constant-speed-ratio driven shaft, a variable-speed-ratio driven shaft, such as the AC generator shaft, two driver pulleys of different diameters mounted on the driver shaft, a single constant-speed-ratio driven pulley mounted on the constant-speed-ratio driven shaft, and two speed-changing pulleys mounted on the variable-speed-ratio driven shaft. One driving belt is trained over a drive pulley, single constant-speed-ratio driven pulley, and one pulley and an additional belt is trained around the second drive pulley, the second speed-changing pulley, and, if desired, over another constant-speed-ratio pulley on another shaft. There is a changeover mechanism for selectively coupling the speed-changing pulleys to the variable-speed-ratio driven shaft at the desired speed ratio depending on the speed of the driver shaft.

Inventors

  • 👤 Yasuo Kitami
  • 👤 Hidenori Tezuka
  • 👤 Syuji Watanabe

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 07:03
CPC Classifications
F; F02; F02B; F02B67/00; F02B67/04; F02B67/06; F16; F16H; F16H9/00; F16H9/02; F16H9/04; F02B2275/00; F02B2275/06

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 106 words
A variable-speed driving device comprising a driver shaft, a constant-speed-ratio driven shaft, a variable-speed-ratio driven shaft, a plurality of driver pulleys of different diameters mounted on said driver shaft, a single constant-speed-ratio driven pulley, a plurality of speed-changing pulleys mounted on said variable-speed-ratio driven shaft equal to said plurality of said drive pulleys, a changeover mechanism for selectively coupling said speed-changing pulleys to said variable-speed-ratio driven shaft, a rotation transmission means for driving one of said driver pulleys, said constant-speed-ratio driven pulley, and one of said speed-changing pulleys, and another rotation transmission means for driving at least the other driver pulley and the other speed-changing pulley.
Claim 2
Dependent Claim 106 words
A variable-speed driving device comprising a driver shaft, a constant-speed-ratio driven shaft, a variable-speed-ratio driven shaft, a plurality of driver pulleys of different diameters mounted on said driver shaft, a single constant-speed-ratio driven pulley, a plurality of speed-changing pulleys mounted on said variable-speed-ratio driven shaft equal to said plurality of said drive pulleys, a changeover mechanism for selectively coupling said speed-changing pulleys to said variable-speed-ratio driven shaft, a rotation transmission means for driving one of said driver pulleys, said constant-speed-ratio driven pulley, and one of said speed-changing pulleys, and another rotation transmission means for driving at least the other driver pulley and the other speed-changing pulley.
Claim 3
Dependent Claim 53 words
A variable-speed driving device according to claim 1, wherein the speed-changing pulleys include low-speed and high-speed pulleys, said changeover mechanism being operable to switch from said low-speed pulley to said high-speed pulley for connection to said variable-speed-ratio driven shaft when the speed of rotation of said driver shaft increases beyond a prescribed speed.
Claim 4
Dependent Claim 22 words
A variable-speed driving device according to claim 1, wherein each of rotation transmission means comprises a belt trained around the respective pulleys.
Claim 5
Dependent Claim 27 words
A variable-speed driving device according to claim 1, wherein at least one of said rotation transmission means is arranged to drive another constant-speed-ratio driven pulley and shaft.
Claim 6
Dependent Claim 28 words
A variable-speed driving device according to claim 1, wherein one said rotation transmission means only engages and transmits the drive between one drive pulley and one speed-changing pulley.

References Cited (Backward Citations)

US4296717A Cited
US4412460A Cited
US4662861A Cited
JPH0638933A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1992-07-10 1993-01-09 1993-07-11 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1996-07-10 1997-01-09 1997-07-11 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2000-07-10 2001-01-09 2001-07-11 $7700.00 Window Closed / Lapsed

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