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US4317512A Expired / Lapsed US ⏱️ 0.0 years remaining

Multiple-disk clutches

Assignee: Amada Co Ltd
•
Filing: 1980-07-01
•
Granted: 1982-03-02
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Expires: 2000-07-01
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Abstract

Abstract The present invention relates to a multiple-disk clutch comprising an input shaft; an output shaft having splines formed thereon; a plurality of clutch disks slidably disposed on the output shaft for engagement with the splines; a clutch plate, provided on the output shaft, for pushing the plurality of clutch disks into engagement with the splines; a first rod for transmitting driving force from the input shaft to the output shaft through the plurality of clutch disks; and a second rod for pushing the output shaft in the opposite direction of the first rod so as to cancel the thrust force caused by the first rod moving in the direction in which the clutch is moved for power engagement. The advantages obtained by this structural engagement of these elements making up the opposition forces include the reduction of bearing wear.

Inventors

  • 👤 Tadashi Sato

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 19:36
CPC Classifications
F; F16; F16D; F16D13/00; F16D13/22; F16D13/38; F16D13/52; B; B30; B30B; B30B15/00; B30B15/10; F16D25/00; F16D25/08; F16D25/082

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 106 words
A multiple-disk clutch, comprising: an input shaft; an output shaft; clutch means for engaging and disengaging the power between the input shaft and the output shaft; first rod means for moving the clutch means into and out of power engagement, said first rod means pushing the output shaft in the same direction in which the clutch is moved for power engagement; and second rod means for moving the output shaft in the opposite direction of the first rod means so as to cancel the thrust force caused by the first rod means moving in the direction in which the clutch means is moved for power engagement.
Claim 2
Dependent Claim 106 words
A multiple-disk clutch, comprising: an input shaft; an output shaft; clutch means for engaging and disengaging the power between the input shaft and the output shaft; first rod means for moving the clutch means into and out of power engagement, said first rod means pushing the output shaft in the same direction in which the clutch is moved for power engagement; and second rod means for moving the output shaft in the opposite direction of the first rod means so as to cancel the thrust force caused by the first rod means moving in the direction in which the clutch means is moved for power engagement.
Claim 3
Dependent Claim 20 words
The multiple-disk clutch according to claim 1, wherein said second rod means is arranged coaxially inside the first rod means.
Claim 4
Dependent Claim 24 words
The multiple-disk clutch according to claim 1, further comprising motor means for driving the first rod means and for holding the second rod means.
Claim 5
Dependent Claim 16 words
The multiple-disk clutch according to claim 3, further comprising pulley means for driving the motor means.

References Cited (Backward Citations)

US3835971A Cited
US4135611A Cited
US4183425A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1985-03-01 1985-08-31 1986-03-02 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1989-03-01 1989-08-31 1990-03-02 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1993-03-01 1993-08-31 1994-03-02 $7700.00 Window Closed / Lapsed

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