NL7500382A - Rotary mower with vertical shafts - has knives swinging out from rotors until they strike stops - Google Patents
Rotary mower with vertical shafts - has knives swinging out from rotors until they strike stopsInfo
- Publication number
- NL7500382A NL7500382A NL7500382A NL7500382A NL7500382A NL 7500382 A NL7500382 A NL 7500382A NL 7500382 A NL7500382 A NL 7500382A NL 7500382 A NL7500382 A NL 7500382A NL 7500382 A NL7500382 A NL 7500382A
- Authority
- NL
- Netherlands
- Prior art keywords
- knives
- knife
- stop
- vertical shafts
- rotor
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D34/00—Mowers; Mowing apparatus of harvesters
- A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
- A01D34/412—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
- A01D34/63—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
- A01D34/64—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis mounted on a vehicle, e.g. a tractor, or drawn by an animal or a vehicle
- A01D34/66—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis mounted on a vehicle, e.g. a tractor, or drawn by an animal or a vehicle with two or more cutters
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D34/00—Mowers; Mowing apparatus of harvesters
- A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
- A01D34/412—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
- A01D34/63—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
- A01D34/73—Cutting apparatus
- A01D34/736—Flail type
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Harvester Elements (AREA)
Abstract
Each rotor has one or more knives pivoting on it on vertical axes. Under the effect of centrifugal force knife (5) swings outwards until it strikes a stop (25) on the rotor, and the centre of gravity (Z) of the knife lies, when seen in the direction of rotation, behind the radial plane passing through the pivot axis (9). If the knife swings in the opposite direction to the direction of rotation, the stop can be arranged to deflect, and it can form part of a leaf spring. The knife can be long enough to strike the rotor hubs on swinging in this direction, or it can itself deflect on hitting the stop.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL7500382A NL7500382A (en) | 1975-01-13 | 1975-01-13 | Rotary mower with vertical shafts - has knives swinging out from rotors until they strike stops |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL7500382A NL7500382A (en) | 1975-01-13 | 1975-01-13 | Rotary mower with vertical shafts - has knives swinging out from rotors until they strike stops |
Publications (1)
Publication Number | Publication Date |
---|---|
NL7500382A true NL7500382A (en) | 1976-07-15 |
Family
ID=19822980
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL7500382A NL7500382A (en) | 1975-01-13 | 1975-01-13 | Rotary mower with vertical shafts - has knives swinging out from rotors until they strike stops |
Country Status (1)
Country | Link |
---|---|
NL (1) | NL7500382A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0218307A1 (en) * | 1985-10-11 | 1987-04-15 | C. van der Lely N.V. | A rotary disc mower comprising a plurality of discs arranged above a frame beam and being rotatable around upwardly directed shafts |
FR2695291A1 (en) * | 1992-09-09 | 1994-03-11 | Gabillat Luc | Rotating blade for lawnmower - has cutting edge which is angled forward from line through centre of rotation |
FR2717037A1 (en) * | 1994-03-11 | 1995-09-15 | Bruneau Joseph | Rotary cutting head for use on vegetation trimmers |
FR2776953A1 (en) * | 1998-04-07 | 1999-10-08 | Edouard Boisson | Semi-rigid rotary grass cutter |
EP1723843A1 (en) * | 2005-05-19 | 2006-11-22 | ESM ENNEPETALER SCHNEID- UND MÄHTECHNIK GMBH & CO. KG | Apparatus for cutting and mulching of in particular high grown grass cuttings |
-
1975
- 1975-01-13 NL NL7500382A patent/NL7500382A/en not_active Application Discontinuation
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0218307A1 (en) * | 1985-10-11 | 1987-04-15 | C. van der Lely N.V. | A rotary disc mower comprising a plurality of discs arranged above a frame beam and being rotatable around upwardly directed shafts |
FR2695291A1 (en) * | 1992-09-09 | 1994-03-11 | Gabillat Luc | Rotating blade for lawnmower - has cutting edge which is angled forward from line through centre of rotation |
FR2717037A1 (en) * | 1994-03-11 | 1995-09-15 | Bruneau Joseph | Rotary cutting head for use on vegetation trimmers |
FR2776953A1 (en) * | 1998-04-07 | 1999-10-08 | Edouard Boisson | Semi-rigid rotary grass cutter |
EP1723843A1 (en) * | 2005-05-19 | 2006-11-22 | ESM ENNEPETALER SCHNEID- UND MÄHTECHNIK GMBH & CO. KG | Apparatus for cutting and mulching of in particular high grown grass cuttings |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
BV | The patent application has lapsed |