WO1998053661A1 - A crop spreader, a blade therefor and methods of use thereof - Google Patents
A crop spreader, a blade therefor and methods of use thereof Download PDFInfo
- Publication number
- WO1998053661A1 WO1998053661A1 PCT/NZ1998/000066 NZ9800066W WO9853661A1 WO 1998053661 A1 WO1998053661 A1 WO 1998053661A1 NZ 9800066 W NZ9800066 W NZ 9800066W WO 9853661 A1 WO9853661 A1 WO 9853661A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- blade
- spreader
- attachment means
- edge
- rotatable body
- 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
- A01D34/667—Means for directing the cut crop
- A01D34/668—Means for directing the cut crop rotating
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D78/00—Haymakers with tines moving with respect to the machine
- A01D78/08—Haymakers with tines moving with respect to the machine with tine-carrying rotary heads or wheels
- A01D78/10—Haymakers with tines moving with respect to the machine with tine-carrying rotary heads or wheels the tines rotating about a substantially vertical axis
- A01D78/1064—Arrangements of tines
Definitions
- This invention relates to a crop spreader, a blade therefor and methods of use thereof.
- Some conventional mowers used for cutting variety of crops incorporate a mechanism for spreading the cut crop behind the mower or to the side of the path of the mower.
- these mowers are designed to deliver cut crop to the spreader which spreads the crop.
- a spreader is used to spread the windrow and usually comprises a rotatable body powered by a vehicle, such as a tractor, having a number of blades or tines attached to the rotatable body.
- Spreaders are known in which the blades or tines rotate in a plane which is substantially parallel or substantially perpendicular to the ground when in use.
- a spreader is fixed to a mower in a location such that the cut crop is delivered into the path of the rotating blades or tines of the spreader.
- the effect of the rotating blades or tines is to cast the cut crop to the side of the mower's path.
- Crops vary in height and entanglement. Furthermore, a crop may be wet and heavy or dry and light depending on the weather conditions.
- known mower/spreader arrangements are not well adapted to be used on a wide variety of crop types. Generally, the type of blades or tines of the spreader and their height above the ground when in use , cannot readily be varied for different terrains and crop conditions.
- a spreader for spreading a cut crop wherein the spreader comprises a plurality of blades attached to a rotatable body, wherein the rotatable body comprises a plurality of attachment means each adapted to secure a blade, and wherein each attachment means is further adapted to enable the position of each blade to be varied relative to the rotatable body.
- a spreader for spreading cut crop comprising a plurality of planar blades attached to a rotatable body, wherein the rotatable body comprises a plurality of attachment means each adapted to secure a blade having a first edge and a second edge, and wherein the arrangement of each attachment means and blade is such that the first edge or second edge may be selected as the leading edge of the blade.
- a spreader for spreading a cut crop comprising a plurality of planar blades attached to a rotatable body, wherein the rotatable body comprises a plurality of attachment means each adapted to secure a blade, and wherein each blade extends from the axis of rotation of the rotatable body at an angle between 0 degrees and 60 degrees.
- each attachment means is adapted to enable the position of each blade to be varied relative to the rotatable body. It is further preferred that each attachment means comprises opposed faces each having a plurality of holes which enable a blade to be fixed via one of the holes to the attachment means at a preselected location so that the blade extends from the rotatable body by a desired distance.
- Each blade may be secured to the attachment means via a securing pin placed through a hole located towards one end of the blade and through a hole in the opposed faces of the attachment means.
- each blade has a first edge and a second edge, and the arrangement of each attachment means and blade is such that the first edge or second edge may be selected as the leading edge of the blade when in use.
- the attachment means also comprises a shield attached to one side of the attachment means so that the pin arrangement is protected from damage or dislodgement by cut crop when in use.
- the spreader has three blades.
- a blade adapted for use in the spreader of this invention wherein the angle between a first edge of the blade and the main axis of the blade is different from the angle between a second edge of the blade and the main axis of the blade.
- first edge of the blade is substantially parallel to the main axis of the blade and the second edge includes an angled portion so that the width of the blade at one end is less than the width of the main body of the blade.
- the blade is preferably a planar blade and has width and thickness dimensions suitable to give the blade strength and durability.
- the blade may be constructed of a hard rigid material such as metal, for example, spring steel.
- the blade has a hole at one end to enable it to be secured to a spreader by securing means such as a pin.
- a further aspect of the invention provides a crop mower including the spreader of the first aspect of this invention.
- the spreader is positioned on the crop mower so that cut crop is delivered into the path of the rotating blades.
- the rotatable shaft of the spreader is in a generally upright orientation, preferably at an angle between 1 6° and 50° from vertical, more preferably between 1 6° and 25°.
- a further aspect of this invention is a method of spreading cut crop comprising rotating the blades of the spreader of the first aspect of this invention and feeding the cut crop into the path of the rotating blades
- the invention also provides a method of adjusting the distance which each blade of the spreader of this invention extends from the rotatable body comprising removing a securing pin from each blade/attachment means arrangement, moving the blade relative to the rotatable body and inserting the securing pin through a hole in the blade and a hole in each of the opposed faces of the attachment means thus securing the blade in a new location relative to the rotatable body.
- This invention also provides a method of varying the type of spreading to suit the type of crop by removing a securing pin fixing a blade to an attachment means, disengaging the blade from the attachment means, rotating the blade about its mam axis and reattaching the blade to the attachment means with the securing pin, so that the following edge of the blade becomes the leading edge when in use.
- Figure 1 is a side view of a spreader
- Figure 2 is a perspective view of a blade used in a spreader
- Figure 3 is a perspective view of a spreader attached to part of a mower.
- the spreader 1 comprises a rotatable body 2 which is partially covered by a housing 3.
- the rotatable body 2 is attached via a shaft (not shown) to a pulley 4 the side edge of which is shaped to hold a belt 5. Movement of belt 5 causes disc 4 to rotate, in turn causing rotatable body 2 to rotate.
- the rotatable body 2 of the spreader 1 of Figure 1 and 3 comprises three substantially identical attachment means 6.
- a blade 7 is shown secured to each of two of the three attachment means 6.
- the blades 7 extend from the rotatable body 2 at an angle of approximately 45° from the axis of rotation of the rotatable body 2.
- FIG. 1 One attachment means 6 is shown in Figure 1 without a blade 7 secured thereto
- the attachment means 6 has a back face 8 and a front face 1 1 . Both faces 8 and 1 1 have an aligned series of holes 9.
- Figure 2 shows a blade 7 having a hole at 10 at one end. Each blade 7 is secured to an attachment means 6 by sliding the proximal end of the blade 7 between the faces 8 and 1 1 .
- each attachment means 6 may have a single hole 9 and each blade 7 may have a plurality of holes 1 0 to give the same effect.
- Each attachment means 6 and blade 7 is protected from damage or dislodgement by a shield 1 2.
- Each shield 1 2 is a substantially rigid plate and is located in the leading side of each attachment means 6.
- the blade 7, as shown in Figure 2, has a straight edge 1 3 and an edge 1 4 having inclined portion 1 5.
- Edge 1 3 or edge 14 may be selected as the leading edge when in use.
- Edge 1 4 having inclined portion 1 5 is more suitable as the leading edge when spreading cut crop which is dry or lightweight or ordered whereas edge 1 3 is more suitable as the leading edge when spreading cut crop which is wet or heavy or tangled.
- the leading edge of blade 7 can be changed by removing the securing pin, sliding blade 7 out of attachments means 6, rotating the blade 7 about its main axis, inserting the blade 7 back into the attachment mean 6, and replacing the securing pin.
- Figure 3 shows the spreader 1 attached via an arm 1 6 to a part of a mower 1 7.
- the spreader 1 is in a substantially upright orientation and is inclined at an angle between 1 6° and 50° from vertical.
- the spreader 1 is located on the mower 1 7 so that cut crop is delivered by rotating cutting blades attached to the underside of drums 1 8 into the path of rotating spreader blades 7.
- the spreader blades 7 cause the cut crop to be cast to the side of the path of the mower 1 7.
- One advantage of the spreader of this invention is that the leading edge of each blade 7 can be varied for use when spreading cut crop which is heavy and tangled or for use when the cut crop to be spread is light and generally ordered.
- a spreader comprising the adjustable attachment means 6 has an advantage over conventionally spreaders as the height of the blades 7 above ground when in sue may be varied to suit different crop heights or terrains.
- the crop spreader is useful for the spreading of crop following cutting of the crop by a crop mower.
- the crop spreader is particularly useful where the type of crop to be cut can vary.
- the crop spreader is adjustable for effective spreading of wet and heavy crops and of dry and light crops.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Harvester Elements (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU79416/98A AU7941698A (en) | 1997-05-28 | 1998-05-27 | A crop spreader, a blade therefor and methods of use thereof |
NZ500984A NZ500984A (en) | 1997-05-28 | 1998-05-27 | A crop spreader comprising retractable and extendable blades |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NZ31493097 | 1997-05-28 | ||
NZ314930 | 1997-05-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998053661A1 true WO1998053661A1 (en) | 1998-12-03 |
Family
ID=19926260
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/NZ1998/000066 WO1998053661A1 (en) | 1997-05-28 | 1998-05-27 | A crop spreader, a blade therefor and methods of use thereof |
Country Status (2)
Country | Link |
---|---|
AU (1) | AU7941698A (en) |
WO (1) | WO1998053661A1 (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4269019A (en) * | 1978-06-24 | 1981-05-26 | Klockner-Humboldt-Deutz Ag | Tedding attachment for rotary harvesting mower |
GB1603343A (en) * | 1977-09-06 | 1981-11-25 | Patent Concern Nv | Crop working machine |
US4329837A (en) * | 1978-09-01 | 1982-05-18 | Expert N.V. | Agricultural implement for working crop lying on the field |
DE3427035A1 (en) * | 1984-07-21 | 1986-01-30 | Karl 7968 Saulgau Moosbrucker | Rotary mower having throwing stars |
US4684068A (en) * | 1986-01-17 | 1987-08-04 | Deutz-Allis Corporation | Dual rotating spreaders for harvester discharge |
-
1998
- 1998-05-27 AU AU79416/98A patent/AU7941698A/en not_active Abandoned
- 1998-05-27 WO PCT/NZ1998/000066 patent/WO1998053661A1/en active Search and Examination
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1603343A (en) * | 1977-09-06 | 1981-11-25 | Patent Concern Nv | Crop working machine |
US4269019A (en) * | 1978-06-24 | 1981-05-26 | Klockner-Humboldt-Deutz Ag | Tedding attachment for rotary harvesting mower |
US4329837A (en) * | 1978-09-01 | 1982-05-18 | Expert N.V. | Agricultural implement for working crop lying on the field |
DE3427035A1 (en) * | 1984-07-21 | 1986-01-30 | Karl 7968 Saulgau Moosbrucker | Rotary mower having throwing stars |
US4684068A (en) * | 1986-01-17 | 1987-08-04 | Deutz-Allis Corporation | Dual rotating spreaders for harvester discharge |
Also Published As
Publication number | Publication date |
---|---|
AU7941698A (en) | 1998-12-30 |
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