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WO1996039019A1 - Bande de chargement - Google Patents

Bande de chargement Download PDF

Info

Publication number
WO1996039019A1
WO1996039019A1 PCT/GB1996/001356 GB9601356W WO9639019A1 WO 1996039019 A1 WO1996039019 A1 WO 1996039019A1 GB 9601356 W GB9601356 W GB 9601356W WO 9639019 A1 WO9639019 A1 WO 9639019A1
Authority
WO
WIPO (PCT)
Prior art keywords
arms
loading conveyor
conveyor
support frame
mushrooms
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/GB1996/001356
Other languages
English (en)
Inventor
Lee Sheridan Russell
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.)
KENSAL Ltd
Original Assignee
KENSAL Ltd
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 KENSAL Ltd filed Critical KENSAL Ltd
Priority to AU60095/96A priority Critical patent/AU6009596A/en
Publication of WO1996039019A1 publication Critical patent/WO1996039019A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D45/00—Harvesting of standing crops
    • 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
    • A01G18/00—Cultivation of mushrooms
    • A01G18/70—Harvesting

Definitions

  • This invention relates to a loading conveyor, and in particular (but not exclusively) to such a conveyor suitable for use when harvesting mushrooms.
  • the invention also relates to the combination of such a conveyor together with a grading trolley arranged to grade mushrooms supplied thereto by the loading conveyor.
  • the loading conveyor of this invention may be used with items other than mushrooms, including both delicate grown produce and manufactured products, since the loading conveyor is intended primarily for use with the harvesting of mushrooms it will hereinafter be described expressly with reference to such produce. It must however be understood that the invention is not to be regarded as limited solely to the handling of mushrooms.
  • the present invention aims at providing a loading conveyor assembly suitable for use for example with a grading trolley intended to be pulled along the aisle between rows of growing beds for mushrooms, which loading conveyor facilitates the loading of mushrooms on to the grading conveyor and so minimises the risk of damage to harvested caps, and at the same time allows an operator to harvest mushrooms more easily and quickly.
  • a loading conveyor suitable for use when harvesting mushrooms, comprising a support frame, a pair of arms each articulated to the support frame about a respective generally vertical axis, means linking the arms so that the arms remain substantially parallel during articulating movement thereof, each arm having associated therewith a respective endless belt which extends around a first pulley provided at or adjacent the end of the arm articulated to the support frame and a second pulley at or adjacent the end of the arm remote from the support frame, and means to drive the belts such that the facing runs of the two belts move from the free ends of the arms towards the support frame.
  • the loading conveyor of the present invention is particularly suitable for use with a grading trolley of the kind described hereinbefore.
  • the loading conveyor may be attached to the grading trolley, to feed mushrooms placed on the loading conveyor to the grading conveyor of the grader.
  • the loading conveyor should be mounted at the inlet to the grading conveyor so as to project forwardly therefrom; in this way, an operator may easily deposit harvested mushrooms on to the loading conveyor defined by the respective pairs of endless belts, and the articulated arms allow the loading conVeyor to be directed towards a bed being harvested. Consequently, an operator may more easily load mushrooms into the grading trolley, with a reduced risk of damage to those mushrooms. Operator efficiency is thus enhanced allowing greater productivity with fewer damaged mushrooms.
  • the arms of the loading conveyor may be arranged to project at one of two pre ⁇ defined angular positions with respect to the support frame.
  • the arm By having the axis of articulation of each arm spaced from the axis of rotation of the first pulley associated with that arm and positioned such that the belt passing around the first and second pulleys forms an over-centre mechanism, the arm will be urged to stay at its angularly-limited position.
  • the spacing between the axes of rotation of the two first pulleys may be smaller than the spacing between the axes of articulation of the two arms.
  • a link may be arranged symmetrically with respect to the articulation axes of the arms to the support frame, whereby the link in conjunction with the arms and the support frame forms a parallelogram linkage.
  • Such a link may have an adjustable length to permit accurate setting-up.
  • the support frame itself may be pivoted about a generally vertical axis to a main frame and be settable to a selected one of a number of different angularly- spaced positions.
  • a manually-releasable mechanism may be provided to lock the support frame in the selected one position.
  • the support frame has two pre-set angularly-spaced positions, essentially equi-spaced to each side of the centre line of the loading conveyor - and in this case, the articulation of the two arms may be limited to two positions equi-spaced each side of the centre line of the support frame.
  • the two pre-set angularly-spaced positions of the support frame are at ⁇ ⁇ ° to the centre line of the main frame and the movement of the arms is limited to ⁇ ° with respect to the support frame.
  • the arms may project from the main frame at any one of four stable positions, namely: a) with the support frame turned clockwise through + ⁇ ° and the arms at their clockwise limiting position of + ⁇ °; b) with the support frame turned clockwise through + ⁇ ° and the arms at their counter-clockwise limiting position of - ⁇ ° .
  • This invention extends to a loading conveyor of the invention as described above, in combination with a trolley intended to be wheeled between rows of mushroom growing beds with the arms of the loading conveyor articulated so as to project either along the line of advancement of the trolley or laterally thereof so as to project towards or even partially overlie a mushroom growing bed.
  • the main frame of the loading conveyor may comprise a suitable part of the trolley itself.
  • the trolley may be an essentially conventional grading trolley and so include a grading conveyor arranged to deposit mushrooms in appropriate containers dependent upon the size of those mushrooms.
  • the loading conveyor serves to feed harvested mushrooms on to the grading conveyor, which conveniently comprises a pair of endless belts running around suitable pulleys with the spacing between the belts gradually increasing whereby mushrooms carried by their caps resting on those belts will fall therebetween when the belt spacing becomes greater than the cap diameter.
  • the trolley may also include a stalk-cutter, to sever the stalks of successive fed mushrooms to a uniform length.
  • the grading conveyor of the trolley extends around respective pairs of pulleys on the same axes as the first pulleys of the loading conveyor.
  • the drive means for the grading conveyor will cause rotation of the first pulleys of the loading conveyor and so in turn serve as the drive means for the loading conveyor.
  • Figure 4 is a side view of the loading conveyor of Figure 3.
  • FIG. 1 there is shown a grading trolley 10 of a generally known design, for use in a mushroom growing shed.
  • the trolley is provided with wheels 11 and 12 so that it may be pulled along an aisle between adjacent rows of growing beds, and includes a belt grading conveyor 13 which serves to grade mushrooms supplied to that conveyor and to deposit those mushrooms into appropriate containers 14 dependent upon the size of the mushrooms.
  • the conveyor 13 has two endless belts running around associated pulleys with the spacing between the facing (conveying) runs of the two belts gradually increasing away from the inlet end 15 of the conveyor.
  • the caps of conveyed mushrooms rest on those runs and when the spacing between those runs becomes equal to the size of a conveyed mushroom, the mushroom falls between the belts and into the container 14 therebelow.
  • a motor 16 is provided to drive both the grading conveyor 13 and also a feed conveyor 17 which is configured to feed mushrooms on to the grading conveyor 13.
  • the feed conveyor also has a pair of endless belts and mushrooms are carried by their caps on the facing runs of those belts.
  • the operator in the known grading trolley, places mushrooms one at a time on the inlet end 18 of the feed conveyor so that the mushrooms are carried 'to and deposited on the grading conveyor 13. Whilst being carried on the feed conveyor 17, the mushrooms move past an adjustable stalk cutter 19, to sever the stalks of all the carried mushrooms to the same length, below the conveyor.
  • a loading conveyor 20 is provided at the inlet end 18 of the feed conveyor 17, to facilitate the loading of mushrooms on to that feed conveyor.
  • the loading conveyor has a pair of arms 20 and 21 , articulated about respective generally vertical axes 22 and 23 to a support frame 24, itself pivoted about a generally vertical axis 25 to the main frame 26 of the trolley 10 (see Figures 2 and 3).
  • a link 27 is pivoted at its two ends 28 and 29 to the two arms 20 and 21 respectively, and forms in conjunction with those arms and the support frame 24 a parallelogram linkage so that the arms 20 and 21 remain parallel irrespective of the articulating movement thereof.
  • the link 27 may be in two parts with a left and right-hand threaded adjuster joining the two parts, whereby rotation of the adjuster varies the effective length of the link.
  • each arm 20 and 21 carries a respective second pulley 32 and 33, and a pair of endless belts 34 and 35 extend around the first and second pulleys whereby the two facing runs 36 and 37 of the two endless belts define a conveyor for mushrooms.
  • the belts are resiliently extensible and, as fitted, are under tension to ensure proper running and operation of the conveyor.
  • An abutment face 38 ( Figure 3) is provided on each arm and engages a corresponding surface (not shown) on the support frame 24 in order to define a limiting position for the angular movement of the arm in the direction away from the other arm.
  • the maximum clockwise angular movement of arm 20 is defined by its abutment face 38; and the maximum counter ⁇ clockwise movement of arm 21 is defined by its abutment face 38.
  • the configuration of the axes of rotation of the first pulleys 30 and 31 , the diameter of those pulleys and the axes 22 and 23 of articulation of the arms 20 and 21 to the support frame 24 all are such that in conjunction with the belts 34 and 35 there is formed for each arm an over-centre arrangement which tends to keep the arm at its limiting position.
  • the combined tension of the two belts thus keeps the two arms at either one of the two limiting positions, and all other intermediate positions of the arms are essentially unstable, including the central position illustrated in Figure 3.
  • the support frame 24 pivots about axis 25 and may be locked by mechanism 40 at either one of two angularly-spaced extreme positions.
  • Mechanism 40 includes a spring-loaded plunger 41 which may drop into either one of two extreme position holes 42 formed in upper plate 43 of the support frame 24, or in a central position hole as shown.
  • the plunger 41 has an enlarged head to facilitate lifting thereof by an operator.
  • the first pulleys 30 and 31 are each in the form of a double pulley having two grooves.
  • Belts 34 and 35 run in the upper groove of the associated pulley and belts 44 of the feed conveyor 17 run in the lower grooves. In' this way, a cap carried by the belts 34 and 35 will be deposited on the belts of the feed conveyor, to be carried into the grading trolley, for grading therein.
  • the belts 34 and 35 of the loading conveyor will be power-driven by the motor 16 which drives the belts 44 of the feed conveyor and so rotates the double pulleys 30 and 31 , in turn driving the belts 34 and 35.
  • the limiting positions of the arms 20 and 21 are defined to be at ⁇ 20° with respect to the support frame 24 - that is to say, the total angular movement of the arms between their two limiting positions is 40°.
  • the two defined pre-set positions for the support frame 24 are at ⁇ 20° with respect to the main frame of the grading trolley 10 - that is to say, the total angular movement of the support frame with respect to the grading trolley is 40°.
  • the arms and support frame may both be at their extreme clockwise positions as shown in Figure 2, with the arms projecting at 40° with respect to the centre line 45 of the grading trolley.
  • the arms and support frame When the arms and support frame are both at their extreme counter-clockwise positions (not shown), the arms will again project at 40° with respect to the centre line 45 of the grading trolley, but in the opposite sense.
  • the arms When the arms are at their extreme clockwise position but the support frame is at its counter-clockwise position, or the arms are at their extreme counter-clockwise position but the support frame is at its clockwise position, the arms will project forwardly along the centre line 45 of the grading trolley.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Mycology (AREA)
  • Mushroom Cultivation (AREA)

Abstract

Une bande de chargement appropriée pour le chargement des champignons au moment de la récolte est montée sur un chariot de transport (10) conçu pour avancer entre les lits de culture de champignons. La bande de chargement (20) comporte une paire de bras (20, 21) articulés autour de leur axe vertical respectif (22, 23) par rapport à une structure de support (24), cette structure (24) pivotant autour d'un axe vertical (25) par rapport au chariot (10). Une articulation (27) permet que les bras (20, 21) restent parallèles tout au long de leur mouvement pivotant. Deux courroies sans fin (34, 35) s'étendent autour de leurs première et seconde poulies respectives (30, 32; 31, 33). Les bras peuvent s'étendre soit vers l'avant du chariot, soit sur un côté de celui-ci, au-dessus d'un lit de culture, les courroies servant à maintenir les bras de manière stable dans l'une ou l'autre de ces deux positions, en agissant sur eux comme un méchanisme à détente brusque.
PCT/GB1996/001356 1995-06-06 1996-06-06 Bande de chargement Ceased WO1996039019A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU60095/96A AU6009596A (en) 1995-06-06 1996-06-06 Loading conveyor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9511392.4A GB9511392D0 (en) 1995-06-06 1995-06-06 Loading conveyor
GB9511392.4 1995-06-06

Publications (1)

Publication Number Publication Date
WO1996039019A1 true WO1996039019A1 (fr) 1996-12-12

Family

ID=10775567

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1996/001356 Ceased WO1996039019A1 (fr) 1995-06-06 1996-06-06 Bande de chargement

Country Status (3)

Country Link
AU (1) AU6009596A (fr)
GB (1) GB9511392D0 (fr)
WO (1) WO1996039019A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0954988A1 (fr) * 1998-04-28 1999-11-10 John Hayes Appareil et dispositif pour le traitement et l'emballage de champignons
WO2018002345A1 (fr) * 2016-06-30 2018-01-04 Alan Edwards Appareil d'emballage destiné à des produits agricoles ou horticoles

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2044480A5 (en) * 1969-05-22 1971-02-19 Aubert Maguero Paul Machine for cutting-off mushroom stalks
US3570228A (en) * 1969-02-26 1971-03-16 Roy W Phillips Leaf removing apparatus
FR2095536A5 (fr) * 1970-06-04 1972-02-11 Engeler Paul
US3800518A (en) * 1971-10-20 1974-04-02 Agriframe Inc Lettuce harvester
US4136509A (en) * 1977-04-20 1979-01-30 The United States Of America As Represented By The Secretary Of Agriculture Apparatus for harvesting vegetable heads
WO1991002450A1 (fr) * 1989-08-22 1991-03-07 Hendriks Wilhelmus Nicolaas Jo Appareil pour recolter de champignons

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3570228A (en) * 1969-02-26 1971-03-16 Roy W Phillips Leaf removing apparatus
FR2044480A5 (en) * 1969-05-22 1971-02-19 Aubert Maguero Paul Machine for cutting-off mushroom stalks
FR2095536A5 (fr) * 1970-06-04 1972-02-11 Engeler Paul
US3800518A (en) * 1971-10-20 1974-04-02 Agriframe Inc Lettuce harvester
US4136509A (en) * 1977-04-20 1979-01-30 The United States Of America As Represented By The Secretary Of Agriculture Apparatus for harvesting vegetable heads
WO1991002450A1 (fr) * 1989-08-22 1991-03-07 Hendriks Wilhelmus Nicolaas Jo Appareil pour recolter de champignons

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0954988A1 (fr) * 1998-04-28 1999-11-10 John Hayes Appareil et dispositif pour le traitement et l'emballage de champignons
WO2018002345A1 (fr) * 2016-06-30 2018-01-04 Alan Edwards Appareil d'emballage destiné à des produits agricoles ou horticoles

Also Published As

Publication number Publication date
GB9511392D0 (en) 1995-08-30
AU6009596A (en) 1996-12-24

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