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WO2023075589A1 - Dispositif de collecte de feuilles - Google Patents

Dispositif de collecte de feuilles Download PDF

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Publication number
WO2023075589A1
WO2023075589A1 PCT/MY2022/050083 MY2022050083W WO2023075589A1 WO 2023075589 A1 WO2023075589 A1 WO 2023075589A1 MY 2022050083 W MY2022050083 W MY 2022050083W WO 2023075589 A1 WO2023075589 A1 WO 2023075589A1
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WO
WIPO (PCT)
Prior art keywords
oil palm
frame
present
fronds
holder platform
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/MY2022/050083
Other languages
English (en)
Inventor
Devanand VASU
Erman Shah ABD RAZAK
Endroyono -
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sime Darby Plantation Intellectual Property Sdn Bhd
Original Assignee
Sime Darby Plantation Intellectual Property Sdn Bhd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sime Darby Plantation Intellectual Property Sdn Bhd filed Critical Sime Darby Plantation Intellectual Property Sdn Bhd
Publication of WO2023075589A1 publication Critical patent/WO2023075589A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D87/00—Loaders for hay or like field crops
    • A01D87/003—Loaders for hay or like field crops with gripping or clamping devices
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G23/00—Forestry
    • A01G23/003—Collecting felled trees

Definitions

  • the present invention relates to a leaf collecting device. More particularly, this present invention relates to mechanised means for collecting oil palm fronds (oil palm leaves).
  • Oil palm harvesting involves the cutting of the oil palm FFB from the oil palm tree and allowing the FFB to fall to the ground via gravity.
  • Oil palm harvesting begins when the tree reaches maturity usually around 3 years after being planted in the oil palm plantation.
  • Ripe oil palm FFB are harvested at every harvesting round usually by observing oil palm loose fruits lying around the oil palm trunk.
  • Oil palm FFB are harvested by first cutting a frond from the tree for the oil palm FFB to be visible for the worker (harvested) to easily harvest the oil palm FFB. The fronds are then chopped I cut into smaller pieces to be placed between oil palm trees. The oil palm FFB stalk are then cut off by the harvester to be as short as possible.
  • the frond stacker will cut the stalks to be less than 2cm in length after it is harvested from the oil palm trees.
  • Oil palm FFB and oil palm loose fruitlets are then collected to its designated area or space in the oil palm estates.
  • Harvesters usually work in teams - one person for harvesting, one person for frond stacking and cutting of long stalks from the oil palm FFB and one person for collecting oil palm FFB and oil palm loose fruitlets.
  • Fronds are stacked immediately after harvesting and after corrective pruning or just before the rainy season. Fronds are stacked twice per year and after every harvesting round. Frond stacking is undertaken as part of the pruning and harvesting activities.
  • Oil palm fronds is the largest biomass which makes up to 70% of the total residues generated from palm oil industry.
  • Oil palm fronds are on average three metres long, with around 24 fronds per tree being pruned each year, accumulating a huge amount of biomass.
  • Inventive ways to utilise excess oil palm fronds beyond mulch and biofuel are commonplace on plantations. Through meticulous laying and stacking of fronds among the rows of oil palms, they begin to rot, producing a shield for moisture retention in the soil, as well as reducing pest attacks and replenishing the soil with nutrients. In many plantations these frond stacks are the only vegetation on the ground and can provide a much-needed habitat for animals living in the oil palm landscape. Cobras, monitor lizards, invertebrates and rodents are commonly found in these frond piles.
  • SDP Sime Darby Plantation
  • the world's biggest palm oil company by land size is hastening development and trials to deploy light machines that will aid in field upkeep, removing harvested crops and applying fertiliser. It is also turning to remote sensing and artificial intelligence to drive precision farming, making the most efficient use of farm inputs and field workers.
  • IOI said it has a revitalised mechanisation plan, and aims to mechanise fertilising and pesticide spraying as well as automate mill operations, while FGV Holdings plans to mechanise an extra 30,000ha over the next three years.
  • the present invention provides a leaf collecting device which is detachably connected to a movable vehicle, the device includes a trailer of a first part to hold a holder platform or frame, a grabber arm with a claw of a second part, holder platform or frame of a third part and at least one spinning (rotating) wheel or disc of a fourth part wherein the grabber arm with the claw is operated by at least one hydraulic cylinder to grab or collect leaves from ground surrounding trees.
  • Figure 1 illustrates the laying and stacking of fronds among the rows of oil palms in an oil palm estate.
  • Figure 2 illustrates the laying and stacking of fronds among the rows of oil palms in an oil palm estate.
  • Figure 3 illustrates the side view of the device of the present invention .
  • Figure 4 illustrates the back view of the device of the present invention.
  • Figure 5 illustrates the back view of the device of the present invention.
  • FIGS 6 to 9 illustrates the device of the present invention being used in the oil palm estates.
  • Figure 10 illustrates the oil palm fronds collected / stacked at the designated area or space.
  • Oil palm harvesting generally consists of the following steps: a. cutting of the oil palm fronds and oil palm fresh fruit bunches (FFB) as executed by a harvester / cutter; b. rearranging and stacking of the pruned oil palm fronds is executed by a frond stacker; c. trimming of the oil palm FFB stalk is executed by the frond stacker; d. collecting of harvested oil palm FFB and oil palm loose fruitlets is executed by a separate worker or oil palm FFB collecting machine; and e. transporting the oil palm FFB to the oil palm mills.
  • FFB oil palm fresh fruit bunches
  • a harvester or cutter usually cuts the oil palm fronds and oil palm FFB from tree to tree.
  • the next worker who is known as the frond stacker usually collects and stacks the fronds meticulously by laying and stacking the fronds among the rows of the oil palm trees (per Figures 1 and 2). If the fronds are too long and heavy (from tall palms), the fronds are firstly cut into smaller pieces for easy handling. After that, the worker trims the bunch stalk to be as short as possible (preferably less than 5 cm long) and arranges / aligns the FFB along the collection path for collection by other workers or machine to be deposited in a collection bin for transporting to the oil palm mills.
  • the frond stacker’s job is very daunting and challenging, not sustainable, and physically demanding as the oil palm fronds are very heavy in a range of between 30 kg to 45 kg (per frond) and as long as 3m to 5m (per frond).
  • the oil palm fronds are also full of thorns along the rachis area which allows the workers to get easily injured by the sharp thorns.
  • the frond stacker’s job is done manually as they carry an axe or parang and walk from one harvested tree to the next to perform their duties to cover at least around 10 ha to 15 ha per day. This translates to about 6 km to 10 km of walking on top of the collecting, cutting and arranging the oil palm fronds in the estates on a daily basis.
  • the oil palm industry is labour-intensive which requires many workers for the various parts of operations in the oil palm estates.
  • This present invention focuses on the improvement or mechanising the collecting and stacking of oil palm fronds in the estates.
  • the conventional method of oil palm collecting, cutting and stacking is very much labour intensive and productivity per worker is roughly about 10 ha to 15 ha per day.
  • This present invention provides a means to address the labour issue to allow the oil palm industry to operate as how it should without being heavily dependent on labour.
  • the device of the present invention was tested and found to operate effectively and efficiently in both coastal estates or estates with flat terrains and inland estates (with machine accessible terraced areas where the terrains and field accessibility at the inland estates are more challenging than coastal estates).
  • the device of the present invention provides a means to eliminate entirely manual means of collecting, cutting and stacking oil palm fronds in the estates; - there is no longer a need for a worker to manually carry, collect, cut and stack the oil palm fronds in the estates which can be back-breaking.
  • the oil palm fronds which have been cut by the harvester can be collected via the device of the present invention;
  • the oil palm fronds need not be further cut into smaller pieces by an oil palm stacker as the mechanical grabber arm with claw is able to compress / fracture the oil palm fronds into smaller pieces or folds when grabbed by the mechanical grabber arm with claw;
  • the use of device of the present invention is able eliminate 100% of the requirement of frond stackers with overall harvesting team reduction of workers by at least 18%;
  • the device of the present invention can be used in both coastal estates or estates with flat terrains and inland estates (estates with terraced areas);
  • the palm circle is always clear from the fallen pruned oil palm fronds to provide access for harvesting and other estate operations, for ease of collection of the oil palm FFB and oil palm loose fruitlets by workers and the stacking of the oil palm fronds at the designated area or space allows biodegradation of the fronds to recycle back the nutrients into the soil;
  • any type of movable vehicles with any types of grabber arm with claw can be used for this present invention depending on individual estates’ requirements and needs;
  • the device of the present invention is easy to move / manoeuvre in the oil palm estates for estates with flat terrains and estates with machine accessible terraced area;
  • One object of the present invention is to provide reduction in the requirement of workers.
  • Using the device of the present invention to cover the same range of coverage between 40 ha to 50 ha per day requires 8 harvesters or cutters, 6 loose fruit pickers, 2 workers to operate 2 mini tractors with grabbers and 2 workers to operate 2 devices of the present invention.
  • Total workers required are 18 workers, which translates to a reduction of workers of at least 18% by the device of the present invention.
  • Another object of the present invention is that the collection and stacking of the pruned oil palm fronds in the estates can be done as fast as possible, soon after harvesting of the oil palm FFB are done without the need for manual stackers to execute frond stacking and stalk cutting in the oil palm estates which could otherwise cause delay in the collection of oil palm FFB and oil palm loose fruits.
  • An object of the present invention is that requirements for loose fruit pickers are also less than conventional system as the workers can move in faster than normal to collect the loose fruits from the grounds once the oil palm fronds are cleared off from the grounds of the estates using the device of the present invention.
  • oil palm loose fruitlets will detach from the oil palm FFB which results in additional work to collect the loose fruitlets, which would require additional workers.
  • the device of the present invention is able to reduce at least 25% of the requirements of loose fruit collectors.
  • a further object of the present invention is to provide a mechanised means for collecting oil palm fronds in the oil palm estates beginning with the grabbing of the oil palm fronds from the grounds in the estates using a mechanical grabber arm with claw.
  • Another object of the present invention is to provide a trailer which holds a holder platform or frame which has plurality of holding rods around the holder platform or frame to hold and prevent the collected oil palm fronds from falling off from the device of the present invention.
  • An object of the present invention is also to provide a flexible holder platform or frame which is connected to the trailer via at least one spinning (rotating) wheel or disc.
  • a further object of the present invention is to provide the holder platform or frame which is able to rotate 360° clockwise and anti-clockwise or adjusted to be in a fixed position to accommodate the needs of the user of the present invention whether during collection of the oil palm fronds from the ground or when the oil palm fronds are being transported to the designated area or space.
  • Yet another object of the present invention is to provide a device of the present invention which allows completion of fronds stacking for a 1 ha area in the estate (which can consist about 135 to 144 oil palm trees per ha) in a 3-month interval with biomass requirements evenly distributed (recycling of the nutrients back into the soil).
  • Another object of the present invention is that only one single operator is sufficient to handle the process of driving the device of the present invention to the harvested trees, grabbing the pruned oil palm fronds from the ground and loading them on the holder platform or frame to be transported to the designated area or space in the estates. This eliminates the need for a worker to walk from one harvested tree to the next to stack oil palm fronds, cut the FFB stalks and rearrange the cut fronds. Manual means are eliminated by the device of the present invention and provides an efficient means for frond stacking works in the estates. 1 operator is equivalent to 4 harvesters’ area per conventional means using the device of the present invention. This operator is not required to arrange or align the FFBs at the estates and is only required to collect and deposit the pruned oil palm fronds at the designated area or space.
  • a further object of the present invention is to provide a means to eliminate entirely manual means of collecting, cutting and stacking oil palm fronds in the estates as there is no longer a need for the worker to manually carry, collect, cut and stack the oil palm fronds in the estates.
  • Oil palm harvesting generally comprises of the following steps: a) cutting of the oil palm fronds and oil palm FFB as executed by a harvester / cutter; b) rearranging and stacking of the pruned oil palm fronds as executed by a frond stacker; c) trimming of the oil palm FFB stalk as executed by the frond stacker; d) collecting of harvested oil palm FFB and oil palm loose fruitlets as executed by a separate worker or oil palm FFB collecting machine and e) transporting the oil palm FFB to the mill.
  • oil palm harvesting comprises of the following steps: a) cutting of the oil palm fronds and oil palm FFB is executed by a harvester / cutter; b) collecting, transporting and stacking of the pruned oil palm fronds using the device of the present invention is executed by the operator of the present invention; c) collecting the harvested oil palm FFB and oil palm loose fruitlets is executed by a separate worker or oil palm FFB collecting machine. d) trimming of the oil palm FFB stalk (can be done by a stationed worker or bin attendant at the collection bin area) before being loaded into the collection bin via a mobile ramp; and e) transporting the oil palm FFB to the mill.
  • a front stacker’s job is conventionally to collect, cut and stack the pruned oil palm frond, cut the stalk of the harvested oil palm FFB to be as short as possible and to realign I rearrange the oil palm FFB from palm to palm for easy collection by the FFB collector, which is very challenging physically.
  • This present invention eliminates the need for frond stackers or for any workers to walk from tree to tree, cutting the stalk of the oil palm FFB, cutting the pruned oil palm fronds into smaller pieces and stacking the pruned fronds at the designated area or space. Apart from that, the FFB stalk can be cut at the centralised collection bin before being loaded into the collection bins.
  • the collection of oil palm FFB is also sped up as there is no need to wait for specific workers (i.e. frond stackers) to cut the FFB stalk in the fields conventionally before being collected to be unloaded into the loading I collection bins.
  • the conventional system of harvesting uses 8 harvesters or cutters, 4 frond stackers, 8 oil palm loose fruit pickers and 2 workers to operate 2 mini tractors with grabbers. This requires a total of at least 22 workers to cover 40 ha to 50 ha per day.
  • This present invention is a leaf collecting device, specifically a device for collecting oil palm fronds at the oil palm estates.
  • the leaf collecting device which is detachably connected to a movable vehicle, the device includes: a) a trailer (1) of a first part to hold a holder platform or frame (3); b) a grabber arm with a claw (2) of a second part; c) holder platform or frame (3) of a third part; and d) at least one spinning (rotating) wheel or disc (5) of a fourth part, wherein the grabber arm with the claw (2) is operated by at least one hydraulic cylinder to grab or collect leaves from ground surrounding trees.
  • the holder platform or frame (3) consists of plurality of holding rods (4) surrounding the holder platform or frame (3).
  • the holder platform or frame (3) provides a surface to hold collected leaves.
  • the holding rods (4) prevent the collected leaves on the holder platform or frame (3) from falling off the holder platform or frame (3).
  • the holder platform or frame (3) can be locked into a fixed position.
  • the holder platform or frame (3) is able to rotate 360° clockwise.
  • the holder platform or frame (3) is able to rotate 360° anti-clockwise.
  • the rotating mechanism of the holder platform or frame (3) is provided by the at least one spinning (rotating) wheel or disc (5).
  • the trailer (1) is connected to the holder platform or frame (3) by means of the at least one spinning (rotating) wheel or disc (5).
  • the plurality of holding rods (4) is preferred for the plurality of holding rods (4) to be in a distance of between 0.5m to 1.5m, more preferably 0.8m to 1.2m between each holding rod to be able to capture oil palm fronds placed on the holder platform or frame (3) in order to prevent the oil palm fronds from falling off the holder platform or frame (3) when the oil palm fronds are being transported to the designated area or space.
  • the number of holding rods (4) would depend on the length and width of the holder platform or frame (3).
  • the plurality of holding rods should not be placed too far apart or too near as if the holding rods are too far apart the oil palm fronds might not be trapped effectively and could fall out from the holder platform or frame (3) when the operator drives the movable vehicle to the designated area or space. If the holding rods (4) are placed too close to each other, the operator might have problems in placing the oil palm fronds smoothly on the holder platform or frame (3) due to the size of the oil palm fronds.
  • Designated area or space for the purposes of this present invention means spaces or areas between two rows of the oil palm trees in the oil palm estates, per Figure 10.
  • the adjustable and flexible holder platform or frame (3) is preferred for easy manoeuvrability in the estates to be able to carry reasonable amounts of pruned oil palm fronds to the designated area or space, especially at inland estates (to provide flexibility to move through narrow paths and to be able to counter balance from the dragging impact of the oil palm fronds).
  • the ‘trapping mechanism’ which is provided by the plurality of holding rods (4) that surrounds the holder platform or frame (3) is important to ensure that the oil palm fronds remains on the trailer and does not fall out while being transported to the designated area or space in the oil palm estates.
  • the movable vehicle can move within the normal speed range of each individual movable vehicle used with the present invention to transport the oil palm fronds to the designated areas or space without needing to slow down or to check whether any oil palm fronds have fallen out from the device of the present invention.
  • the holder platform or frame (3) is flexible and can be adjusted or locked to be in a fixed position or to allow the holder or frame (3) to rotate (rotatable) depending on the needs of the user during the operations of the device of the present invention.
  • the holder platform or frame (3) is able to rotate as the rotating mechanism is provided by the at least one spinning (rotating) wheel or disc (5).
  • the holder platform or frame (3) is rotatable 360° both ways (full circle clockwise and full circle anti-clockwise).
  • the holder platform or frame (3) can be adjusted to be in a fixed position when the device of the present invention is carrying the oil palm fronds to the designated area or space in estates with flat terrains.
  • the flexible and adjustable holder platform or frame (3) can be locked to carry higher capacity of the pruned oil palm fronds if the fronds are short and the terrains of the estate is flat and smooth. If the pruned fronds are long, and terrains are not flat (i.e. terraced areas), then rotating mechanism plays an important role in ensuring easy manoeuvrability around the estates to the designated area at a consistent speed without the need to slow down or to stop mid-way to collect fallen fronds from the trailer.
  • the holder platform or frame (3) can be adjusted to be in its flexible position (to allow rotation movement) if the device of the present invention is carrying the oil palm fronds to the designated area or space in inland estates (terraced areas).
  • the rotatable holder frame allows for the device of the present invention to manoeuvre in the inland estates easily without the oil palm fronds falling off the device of the present invention.
  • the length of the holder platform or frame (3) will depend on the trailer (1) used by the operator of the present invention, depending on the preference of the user of the present invention.
  • grabber arm with claw (2) can be used for the present invention based on preference of the user for effective and efficient grabbing and collection of the oil palm fronds from the ground to be placed on the holder platform or frame (3).
  • a grabber arm with claw (2) with length of between 2.8m arm and 3.5m (for extended reach) have been used to demonstrate the device of the present invention.
  • holding rods (4) can be used for this present invention as long it is able to fit nicely and solidly onto the holder platform or frame (3) with the height range of at least 0.4m, as if it is too short, the oil palm fronds might not be captured securely on the holder platform or frame (3).
  • the flexible and rotatable holder platform or frame (3) is also important to allow rotating movement of the holder platform or frame (3) while the operator operates the grabber arm with a claw (2) to grab the oil palm fronds on the ground around the device of the present invention to be placed on the holder platform or frame (3).
  • This flexibility allows for the grabbing of all pruned oil palm fronds from the ground without missing any (especially the oil palm fronds which are very close to the device) effectively, efficiently and smoothly.
  • the rotating mechanism of the holder frame is provided by the at least one spinning (rotating) wheel or disc (5), preferably heavy duty spinning discs for industrial use at the estates.
  • Any types of spinning or rotating discs (5) can be used for this present invention as long it is able to provide a rotating mechanism and that the spin axis or orientation of the rotation can be controlled easily by the operator of the present invention without being affected by terrains of the estates, particularly estates terraced areas.
  • At least one spinning (rotating) wheel or disc (5) is sufficient for the present invention, however, more than one could be used or a spinning (rotating) wheel or disc (5) with a bigger diameter can be used based on the size of the trailer (1) used depending on preference of the user of the present invention.
  • the angular velocity of the at least one spinning (rotating) wheel or disc (5) is preferably not more than 1.0 m/s.
  • the holder platform or frame (3) which is able to rotate sits firmly on the trailer (1) and only moves when external force is applied. External force can be force applied by the grabber arm with a claw (2) to move the holder platform or frame (3) when the grabber arm with a claw (2) is used to grab the oil palm fronds from the ground. External force can also be the drag force when the device of present invention carrying the heavy pruned oil palm fronds when manoeuvring in estates (which are narrow and terraced).
  • the oil palm fronds which have been cut by the harvesters can be collected via the device of the present invention using the grabber mechanism (grabber arm with claw (2)). Hence, there is no need for the workers to collect the oil palm fronds manually as it can be back- breaking.
  • the fronds are then unloaded at the designated area or space in the estates.
  • the fronds are mostly fractured into parts or compressed when the fronds are placed on the holder platform or frame (3) and/or unloaded out from the holder platform or frame (3) using the grabber arm with claw (2) of the movable vehicle of the present invention. Hence, it is no longer required for a frond stacker to cut the fronds into smaller pieces especially for long oil palm fronds (from tall palms).
  • a single operator is sufficient to operate the device of the present invention to collect the pruned oil palm fronds.
  • the device of the present invention is able to load 30 to 40 pruned oil palm fronds in a single load (for tall palms) to be carried to the designated area or space in the estates.
  • the present invention is able to load easily more than 40 pruned oil palm fronds, for younger palms with shorter frond length and in estates with flat terrains to be carried to the designated area or space.
  • This present invention uses a mini tractor with a hydraulic powered grabber arm with claw (2) to grab the pruned oil palm fronds lying on the ground to place them on the holder platform or frame (3). Any vehicle with crane mechanism such as a mechanical buffalo, mini tractor manual loading motorized wheel burrow and others with any types of grabber with suitable length can be used for this present invention.
  • the movable vehicle of the present invention can be a three-wheeler or four-wheeler, preferably a four wheeler and can be selected based on ground conditions, accessibility and affordability of individual estates based on needs and preference of the user of the device of the present invention, such as the mini tractor grabber, mechanical buffalo and others.
  • the movable vehicles are chosen based on the terrains of the oil palm estates as long the movable vehicle does not cause any damage at the travelling path and also safe and stable for us at the intended areas.
  • trailer (1) can be used for the present invention preferably an open trailer as long it is able to carry a load of about 2 MT to 3 MT of oil palm fronds around the oil palm estates.
  • the load is preferred not to be more than 3 MT as too heavy load can cause damage to the estate path I roads in the long run.
  • the length and width of the trailer (1) depends on the movable vehicle used and terrains of the oil palm estates.
  • a trailer (1) with the size of 3.0m x 1.5m has been used to demonstrate the device of the present invention, however can be of any size as preferred by the user of the present invention depending on terrains of the estates and/or available movable vehicles for use or purchase. It is preferred that the trailer (1) which holds the holder platform or frame (3) to hold the oil palm fronds are closer to the ground for best stability for carrying the heavy load to the designated area or space without dropping the oil palm fronds on the ground.
  • the device of the present invention was tested in both coastal estates or estates with flat terrains and inland estates where the terrains and field accessibility are more challenging than coastal estates.
  • the challenge here is to access challenging I difficult terrains at inland estates and this device of the present invention proofs that it is efficient and easy to manoeuvre and to be used at the inland estates (with terraced areas).
  • the parameters for the present invention are not obvious for a person skilled in the art and have been determined by the inventors based on numerous trials conducted, observations, discussions and combined expertise, which would not be able to be determined without much efforts and analysis. All prior arts as listed and referred to above do not specifically describe the device of this present invention. To the best of our knowledge, the present invention is novel and inventive.

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Ecology (AREA)
  • Forests & Forestry (AREA)
  • Harvesting Machines For Specific Crops (AREA)

Abstract

La présente invention concerne un dispositif de collecte de feuilles qui est relié amovible à un véhicule mobile, le dispositif comprenant une remorque (1) d'une première partie pour maintenir une plateforme ou un cadre de support (3), un bras de préhension doté d'une griffe (2) d'une seconde partie, une plateforme ou un cadre de support (3) d'une troisième partie et au moins une roue ou un disque tournant (rotatif) (5) d'une quatrième partie, le bras de préhension avec la griffe (2) étant actionné par au moins un vérin hydraulique pour saisir ou collecter des feuilles à partir du sol entourant les arbres.
PCT/MY2022/050083 2021-10-29 2022-09-15 Dispositif de collecte de feuilles Ceased WO2023075589A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
MYPI2021006535 2021-10-29
MYPI2021006535 2021-10-29

Publications (1)

Publication Number Publication Date
WO2023075589A1 true WO2023075589A1 (fr) 2023-05-04

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1149477A (en) * 1968-02-22 1969-04-23 Bevan Nicholas Carrying apparatus
US3902616A (en) * 1973-10-09 1975-09-02 Mengele & Soehne Masch Karl Lifting and tilting device
US4005894A (en) * 1975-10-16 1977-02-01 J. I. Case Company Log grappling apparatus
FR2624072A1 (fr) * 1987-12-04 1989-06-09 Vallette Pavon Vehicule a magasin tournant
US5890754A (en) * 1997-11-21 1999-04-06 Murr; Wayne L. Grapple claw attachment for a backhoe
DE202006017189U1 (de) * 2006-09-26 2007-02-15 Steindl Krantechnik Ges.M.B.H. Kranarm

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1149477A (en) * 1968-02-22 1969-04-23 Bevan Nicholas Carrying apparatus
US3902616A (en) * 1973-10-09 1975-09-02 Mengele & Soehne Masch Karl Lifting and tilting device
US4005894A (en) * 1975-10-16 1977-02-01 J. I. Case Company Log grappling apparatus
FR2624072A1 (fr) * 1987-12-04 1989-06-09 Vallette Pavon Vehicule a magasin tournant
US5890754A (en) * 1997-11-21 1999-04-06 Murr; Wayne L. Grapple claw attachment for a backhoe
DE202006017189U1 (de) * 2006-09-26 2007-02-15 Steindl Krantechnik Ges.M.B.H. Kranarm

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DANNY K H KOH: "Oil Palm Mechanisation Made Easy", 5 March 2017 (2017-03-05), XP093011347, Retrieved from the Internet <URL:https://www.youtube.com/watch?v=TQB2blAF0I8> [retrieved on 20230103] *

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