US5125488A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drive assembly having dual neutrality control
Assignee: Rover Mowers Ltd
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Filing: 1989-06-27
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Granted: 1992-06-30
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Expires: 2009-06-27
Abstract
Abstract A vehicle drive assembly includes a rotating shaft driven by an endless belt which engages and travels about forward and reverse pulleys attached to the shaft and also about an idler pulley which indirectly enables rotation of the forward and reverse pulleys in the forward and reverse directions, respectively. The drive assembly also includes an oscillating clutch assembly, operable by a clutch pedal, which allows both selective engagement of clutch plates with either of the forward and reverse pulleys and neutralization of the clutch assembly. The clutch assembly is also operably linked to the vehicle braking system such that actuation of the brake pedal also effects neutralization of the clutch assembly.
Inventors
- 👤 Douglas F. Green
- 👤 Stephen L. Jackson
- 👤 Steven R. Miatt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:31
CPC Classifications
B; B60; B60W; B60W30/00; B60W30/18; B60W30/18009; B60W30/18109; B60W10/00; B60W10/02; B60W10/18; B60W2540/00; B60W2540/12; B60W2540/14; B60W2710/00; B60W2710/02; B60W2710/021; B60W2710/10; B60W2710/1005; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20012; Y10T74/20018; Y10T74/20055; Y10T74/20207; Y10T74/20213
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
132 words
A vehicle drive assembly of the type comprising a rotating shaft driven by means of an endless belt which engages and travels about forward and reverse pulleys attached to said shaft and also about an idler pulley which indirectly enables rotation of said forward and reverse pulleys in the forward and reverse directions, respectively, said drive assembly also comprising an oscillating clutch assembly operable by a clutch pedal which allows both selective engagement of clutch plates with one of said forward and reverse pulleys at a time and neutralisation of said clutch assembly; said drive being characterized by also comprising means operably linked to the vehicle brake assembly to effect neutralisation of said clutch assembly when the brake pedal of the vehicle brake assembly is actuated, thereby to neutralize said drive assembly.
Claim 2
Dependent Claim
132 words
A vehicle drive assembly of the type comprising a rotating shaft driven by means of an endless belt which engages and travels about forward and reverse pulleys attached to said shaft and also about an idler pulley which indirectly enables rotation of said forward and reverse pulleys in the forward and reverse directions, respectively, said drive assembly also comprising an oscillating clutch assembly operable by a clutch pedal which allows both selective engagement of clutch plates with one of said forward and reverse pulleys at a time and neutralisation of said clutch assembly; said drive being characterized by also comprising means operably linked to the vehicle brake assembly to effect neutralisation of said clutch assembly when the brake pedal of the vehicle brake assembly is actuated, thereby to neutralize said drive assembly.
Claim 3
Dependent Claim
50 words
The vehicle drive assembly of claim 1, wherein said clutch assembly includes an articulated selector arm having first and second ends and a cam plate engaging said first end of said selector arm, said operably linked means comprising a linkage member operably linking the brake pedal and said cam plate.
Claim 4
Dependent Claim
31 words
The drive assembly of claim 2 wherein said linkage member comprises a rod having a first end operably engaging the brake pedal and a second end pivotally engaging said cam plate.
Claim 5
Dependent Claim
76 words
The drive assembly of claim 3 wherein said cam plate has a boss thereon which engages a set of jaws on the said first end of said selector arm, said selector arm being pivotally anchored to enable movement of said clutch assembly, responsive to selective actuation of either of the clutch pedal and the brake pedal, from a preselected forward drive mode to a neutral mode or from a reverse drive mode to the neutral mode.
Claim 6
Dependent Claim
48 words
The drive assembly of claim 4 wherein upon actuation of the brake pedal, said selector arm is moved from either of the preselected forward mode and the reverse mode to the neutral mode by an operable engagement between said boss and said jaws which neutralises said clutch assembly.
Claim 7
Dependent Claim
30 words
The drive assembly of claim 5 wherein said cam plate is pivotally anchored to the vehicle body to enable an operable engagement between said boss and said set of jaws.
Claim 8
Dependent Claim
64 words
The drive assembly of claim 6 wherein said boss, in conjunction with said cam plate, upon actuation of the brake pedal moves between extreme positions at or near the extremities of one or the other of the jaws of said set of jaws, respectively, to an intermediate position in the throat of said set of jaws, thereby to effect neutralization of said clutch assembly.
Claim 9
Dependent Claim
47 words
the drive assembly of claim 7 wherein when said boss is in one of said extreme positions said drive assembly is in a forward drive mode, and when said boss is in the other of said extreme positions said drive assembly is in a reverse drive mode.
Claim 10
Dependent Claim
34 words
The drive assembly of claim 2 wherein said linkage member is a rod connected to the vehicle brake assembly via offset means which results in said rod being offset from the vehicle brake assembly.
Claim 11
Dependent Claim
17 words
The drive assembly of claim 2 wherein said linkage member biased by means of a compression spring.
Claim 12
Dependent Claim
18 words
The drive assembly of claim 2 wherein said selector arm is configured in the shape of a T.
Claim 13
Dependent Claim
36 words
The drive assembly of claim 2 further comprising a control rod linking the second end of said selector arm to said clutch pedal and enabling neutralisation of said clutch assembly when said clutch pedal is actuated.
Claim 14
Dependent Claim
14 words
The drive assembly of claim 1 wherein the vehicle is a ride-on lawn mower.
References Cited (Backward Citations)
US3124970A
Cited
GB220514A
Cited
US2228917A
Cited
GB670803A
Cited
US2988185A
Cited
GB899739A
Cited
US3131581A
Cited
US3645368A
Cited
US4014419A
Cited
US4408683A
Cited
US4248331A
Cited
US4301902A
Cited
US4496035A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-06-30 | 1995-12-30 | 1996-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-06-30 | 1999-12-30 | 2000-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-06-30 | 2003-12-30 | 2004-06-30 | $7700.00 | Window Closed / Lapsed |