Patent CA752210A successfully refreshed from Google Patents.
Patent US3795094A successfully refreshed from Google Patents.
US3795094A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Riding mower
Assignee: Ariens Co
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Filing: 1972-10-30
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Granted: 1974-03-05
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Expires: 1992-10-30
Abstract
Abstract A wheeled frame with tilting front axle has rack and pinion steering gear. A rear mounted prime mover with vertical shaft has separate pulleys for driving the vehicle through a friction disk rate changer and for driving the shaft of the centrally mounted mower. The mower is bodily movable fore and aft for tightening the drive belt or relaxing it to interrupt the drive to the mower. The pan which houses the rotary mower can be adjusted vertically and can move vertically independently of adjustment without interfering with, or being affected by, the clutching fore and aft movement.
Inventors
- 👤 I Mollen
- 👤 P Koerper
- 👤 A Turner
- 👤 D Dewhurst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:16
CPC Classifications
A; A01; A01D; A01D34/00; A01D34/01; A01D34/412; A01D34/63; A01D34/64; A01D2101/00
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
203 words
A vehicle-supported mower comprising a frame provided with wheels, a prime mover on the frame having a depending power shaft, first and second power shaft pulleys on said shaft, a rotary cutter blade supported from the frame, a variable ratio friction transmission comprising a driving disc and a driven disc, said driving disc comprising a pulley connected to said first power shaft pulley by a drive belt, said driving disc being mounted on a shaft substantially parallel to the power shaft of said prime mover and mounted on a carriage, said carriage being mounted on a pair of parallel bars for movement parallel to the plane of said driving disc and substantially at right angles to said power shaft, said driven disc having a periphery normally in driven engagement with the face of said driving disc, connections to transmit power from said driven disc to one of said wheels, one of said bars being provided with offset end portions, and means to oscillate said bar in a direction substantially parallel to said shafts about said offset end portions for lifting said driving disc face out of engagement with the periphery of said driven disc without affecting the belted connection with the power shaft.
Claim 2
Dependent Claim
203 words
A vehicle-supported mower comprising a frame provided with wheels, a prime mover on the frame having a depending power shaft, first and second power shaft pulleys on said shaft, a rotary cutter blade supported from the frame, a variable ratio friction transmission comprising a driving disc and a driven disc, said driving disc comprising a pulley connected to said first power shaft pulley by a drive belt, said driving disc being mounted on a shaft substantially parallel to the power shaft of said prime mover and mounted on a carriage, said carriage being mounted on a pair of parallel bars for movement parallel to the plane of said driving disc and substantially at right angles to said power shaft, said driven disc having a periphery normally in driven engagement with the face of said driving disc, connections to transmit power from said driven disc to one of said wheels, one of said bars being provided with offset end portions, and means to oscillate said bar in a direction substantially parallel to said shafts about said offset end portions for lifting said driving disc face out of engagement with the periphery of said driven disc without affecting the belted connection with the power shaft.
Claim 3
Dependent Claim
38 words
The device of claim 1 further comprising means to move said carriage along said bars to move said driving disc with respect to said driven disc whereby to alter the ratio and direction of the driving connection therebetween.
Claim 4
Dependent Claim
78 words
The device of claim 2 further comprising a stop mounted on said frame in the path of said carriage, said stop being positioneD with respect to said path to prevent movement of said carriage through a position in which the center of the driving disc is over the periphery of the driven disc except when said oscillatable bar is rotated around its offset portion to lift said carriage about said stop, thereby separating said discs in said position.
Claim 5
Dependent Claim
160 words
The device of claim 1 in which said rotary cutter blade is provided with a housing pan, a pulley drivingly secured to said rotary cutter blade, a belt drivingly connecting said second power shaft pulley with said cutter blade pulley, bearing means supporting said rotary blade and pulley on said housing pan, means to move said housing pan in a substantially horizontal plane toward and away from said second power shaft pulley to change the tension of said last mentioned belt to establish and disestablish a driving connection between said second power shaft pulley and said cutter blade pulley, and separate means to move said housing pan substantially vertically whereby to vary the height of the cutter blade from the ground without changing the distance of said housing pan from said second power shaft pulley, whereby to alter the cutting height of the mower without affecting the driving connection between said second power shaft pulley and said cutter blade pulley.
Claim 6
Dependent Claim
51 words
A mower according to claim 4 in which the means to move said housing pan vertically comprises lost motion means and said housing pan having a ground-engageable member adapted to lift said housing pan and blade over ground irregularities substantially vertically, said vertical motion being accommodated by said lost motion means.
Claim 7
Dependent Claim
58 words
A mower according to claim 5 in which the means to move said housing pan vertically comprises separate lifting means for forward and rearward portions of said housing, said lifting means being interconnected and adapted normally to keep the housing level and having separate lost motion connections whereby the housing may deviate from level in surmounting ground irregularities.
Claim 8
Dependent Claim
50 words
A mower according to claim 6 in which the lifting means for the housing comprises for and aft levers having fulcrums, said frame having fore and aft track means in which said fulcrums are slidable to have fore and aft movement for adjustment of tension of said last mentioned belt.
Claim 9
Dependent Claim
52 words
A mower according to claim 7 further comprising linkage connecting the fore and aft levers for transmission of motion from one lever to another in the operation of the means to move said housing pan vertically regardless of the position of the fulcrums of said levers in a fore and aft direction.
Claim 10
Dependent Claim
40 words
A mower according to claim 8 further comprising a manual belt tension adjuster having a connection to said housing for effecting fore and aft movement thereof and for thereby causing fore and aft movement of the fulcrums of said levers.
Claim 11
Dependent Claim
112 words
The device of claim 6 in which the lifting means comprises forward and rearward bell crank members having ends respectively pivotally connected with the housing and fulcrums respectively pivotally connected with the frame, the ends of the bell crank members pivotally connected with the housing being movable in a generally vertical direction for accommodating variations in the height of said cutter blade, and means for rotating said bell crank members about their respective fulcrums for regulating the height of the housing while normally maintaining it level, and lost motion means individual to respective bell crank members to accommodate ground induced variations in housing level, said housing being provided with ground contacting means.
Claim 12
Dependent Claim
49 words
A mower according to claim 10 in which said lifting means includes a manual control, the lost-motion means including a flexible connector leading from the manual control to one bell crank member and a slotted link from the said one bell crank member to the other ball crank member.
Claim 13
Dependent Claim
55 words
A mower according to claim 11, said frame being provided with fore and aft ways along which said fulcrums are slidable, said means to movE the housing pan in a horizontal plane including a second manual control adapted to move the said bell crank members bodily in a fore and aft direction in said ways.
Claim 14
Dependent Claim
161 words
A mower comprising a frame having wheels for ground traverse, a rotary cutter head having a bearing support and a shaft mounted on the bearing support and provided with a driven pulley, a prime mover on the frame having driving connections including a substantially horizontal belt trained about said driven pulley, means carrying said bearing support from said frame and accommodating movement of said support in a substantially horizontal belt-tension-adjusting direction, means controlled by an operator to effect belt-tension adjusting movement of the bearing support and the rotary cutter head, and means effective in all positions of said bearing support in said horizontal tension-adjusting direction to move said cutter head substantially vertically respecting said frame and the ground traversed thereby, said means carrying said bearing support and accommodating movement in a horizontal belt-tension-adjusting direction being constructed to adjust belt tension sufficiently to selectively drive or uncouple said driven pulley from said belt in all vertically adjusted positions of said cutter head.
Claim 15
Dependent Claim
161 words
A mower comprising a frame having wheels for ground traverse, a rotary cutter head having a bearing support and a shaft mounted on the bearing support and provided with a driven pulley, a prime mover on the frame having driving connections including a substantially horizontal belt trained about said driven pulley, means carrying said bearing support from said frame and accommodating movement of said support in a substantially horizontal belt-tension-adjusting direction, means controlled by an operator to effect belt-tension adjusting movement of the bearing support and the rotary cutter head, and means effective in all positions of said bearing support in said horizontal tension-adjusting direction to move said cutter head substantially vertically respecting said frame and the ground traversed thereby, said means carrying said bearing support and accommodating movement in a horizontal belt-tension-adjusting direction being constructed to adjust belt tension sufficiently to selectively drive or uncouple said driven pulley from said belt in all vertically adjusted positions of said cutter head.
References Cited (Backward Citations)
US3461654A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-03-04 | 1977-09-03 | 1978-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-04 | 1981-09-03 | 1982-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-04 | 1985-09-03 | 1986-03-05 | $7700.00 | Window Closed / Lapsed |