EP0637555B1 - Camion à ordures équipé d'une trémie de chargement fixe arrière et de moyens pour le soulèvement et le vidage de récipients à ordures - Google Patents

Camion à ordures équipé d'une trémie de chargement fixe arrière et de moyens pour le soulèvement et le vidage de récipients à ordures Download PDF

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Publication number
EP0637555B1
EP0637555B1 EP94111684A EP94111684A EP0637555B1 EP 0637555 B1 EP0637555 B1 EP 0637555B1 EP 94111684 A EP94111684 A EP 94111684A EP 94111684 A EP94111684 A EP 94111684A EP 0637555 B1 EP0637555 B1 EP 0637555B1
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EP
European Patent Office
Prior art keywords
truck
garbage
compactor
truck body
guides
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.)
Expired - Lifetime
Application number
EP94111684A
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German (de)
English (en)
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EP0637555A1 (fr
Inventor
Roberto Dossena
Marco Vedeo
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.)
VALLE TEIRO EUROPE S.R.L.
Original Assignee
VALLE TEIRO EUROTEC Srl
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
Priority claimed from IT000074 external-priority patent/IT1262289B/it
Priority claimed from IT94GE000033A external-priority patent/ITGE940033A1/it
Application filed by VALLE TEIRO EUROTEC Srl filed Critical VALLE TEIRO EUROTEC Srl
Publication of EP0637555A1 publication Critical patent/EP0637555A1/fr
Application granted granted Critical
Publication of EP0637555B1 publication Critical patent/EP0637555B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65F—GATHERING OR REMOVAL OF DOMESTIC OR LIKE REFUSE
    • B65F3/00—Vehicles particularly adapted for collecting refuse
    • B65F3/02—Vehicles particularly adapted for collecting refuse with means for discharging refuse receptacles thereinto
    • B65F3/04—Linkages, pivoted arms, or pivoted carriers for raising and subsequently tipping receptacles
    • B65F3/041—Pivoted arms or pivoted carriers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65F—GATHERING OR REMOVAL OF DOMESTIC OR LIKE REFUSE
    • B65F3/00—Vehicles particularly adapted for collecting refuse
    • B65F3/14—Vehicles particularly adapted for collecting refuse with devices for charging, distributing or compressing refuse in the interior of the tank of a refuse vehicle
    • B65F3/20—Vehicles particularly adapted for collecting refuse with devices for charging, distributing or compressing refuse in the interior of the tank of a refuse vehicle with charging pistons, plates, or the like
    • B65F3/207—Vehicles particularly adapted for collecting refuse with devices for charging, distributing or compressing refuse in the interior of the tank of a refuse vehicle with charging pistons, plates, or the like guided by tracks, channels, slots or the like provided on the vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65F—GATHERING OR REMOVAL OF DOMESTIC OR LIKE REFUSE
    • B65F3/00—Vehicles particularly adapted for collecting refuse
    • B65F3/24—Vehicles particularly adapted for collecting refuse with devices for unloading the tank of a refuse vehicle
    • B65F3/28—Vehicles particularly adapted for collecting refuse with devices for unloading the tank of a refuse vehicle by a lengthwise movement of a wall, e.g. a plate, a piston, or the like

Definitions

  • garbage trucks for solid urban refuse consisting of a truck body provided at the rear with a transverse dump trough in which the garbage is collected and with a garbage compactor in upward-downward reciprocating motion moving along sloping guides.
  • This mobile compactor is equipped, at its lower end, with a scoop or shovel swinging on a cross shaft to remove the garbage from the dump trough and compact it in the front part of the truck body where the emptying shovel is located.
  • the above mentioned charging mouth includes the dump trough and clearing devices for road garbage bins. It is thus obvious that this dump trough and the clearing equipment are lifted together with the compactor and the rear charging mouth.
  • EP-A-0 514 355 discloses a garbage truck in accordance with the preamble of claim 1, and NL-A-8 202 938 a vehicle for loading, compacting and discharging of refuse which presents a bottom wall of the body with an arc-shaped end portion in which the road garbage bins are emptied.
  • a compacting device is articulated on the top of the body and it presents a plate articulated to the free end of the compacting device. This compacting device doesn't present lateral guides.
  • a movable plate is provided for discharging the refuse from the inside of the body and this plate is first extended and then it is rotated by means of levers and guides, to discharge the refuse from the arc-shaped end of the body.
  • Garbage trucks are usually provided with devices to hook, lift, reverse and empty the road garbage bins into a box where solid urban refuse is collected and compacted. When the dump trough is full it is emptied by means of a proper scoop according many known ways.
  • the control devices to lift and lower the forks and the garbage bin to which they are hooked are generally operated by a leverage system and hydraulic fluid powered pistons fitted on the sides, consisting of a known, fixed cylindrical body and a movable arm connected to swinging levers bearing the forks. When operated, the pistons can lift the road bin, reverse and empty it and vice versa.
  • This system to handle road garbage bins commonly known as hydraulic fluid powered system, has some drawbacks.
  • the first is due to the fact that perfect balanced operation of both pistons is difficult because the weight of the garbage in the road bin may be unbalanced.
  • the second drawback is that the piston and namely the movable arm are rather long and thus require overdimensioning.
  • CH-A- 236 955 it is known a device for lifting and emptying of the little garbage bins and provided only on a side of the vehicle.
  • This device is equipped with a single acting piston with central arm fastened at one end and provided with a fixed plunger on which the piston cylinder, provided on one side with a rackwork, is sliding.
  • This invention has the aim to provide for a garbage truck as defined in claim 1 equipped with a dump trough without rear charging mouth so that the scoop or shovel emptying the garbage will slide without hurting against the mobile compactor.
  • this objective is attained by allowing the compactor to be raised above the upper edge of the scoop.
  • the upper part or the whole sloping guides along which the compactor sliders are moving upwards and downwards can be lifted since the guides are hinged onto an upper cross shaft, around which they can be moved upwards by a single/double acting hydraulic piston.
  • the length of the upper part of the guides is such as to block the sliders of the compactor in their upper position.
  • the lower part of the sloping guides which are not involved in the sliders when the compactor is in its upper position, can be secured to the sides of the road bin.
  • the upper part of the lowered guides will match with the lower part of fixed guides and pins driven by the double acting hydraulic pistons so as to cause the guides to be continuous or interrupted so that the compactor can move upwards or downwards or can stay lifted.
  • the transverse dump trough located transverse to the garbage truck for solid urban refuse and the equipment for emptying the road garbage bins are fixed to the truck body.
  • the dump trough is cleaned when the truck body is emptied by a flat section located transverse to the truck, adjacent and parallel to the lower edge of the shovel, moving along side guides esternally secured to the shovel and driven by single acting low-pressure hydraulic pistons to push this sliding plate forward in the dump trough according its longitudinal profile .
  • lifting and emptying of the road garbage bins is controlled by a special hydraulic fluid powered piston consisting of a central arm fastened at both ends and provided with a fixed plunger on which the piston cylinder, provided on one side with a rackwork, is sliding.
  • This rackwork is linearly acting on a gear fitted on each side of the truck body and rigidly connected to the lifting lever of the fork hook.
  • This control device consisting of a fixed rod and mobile cylinder is mounted on each side of the garbage truck body.
  • This control device consisting of a piston with a fixed arm and a mobile cylinder can be used for any kind of truck for solid urban refuse and is particularly suitable for trucks provided with a rear dump trough in which the garbage from the road bin is collected and is fitted with a compactor which can be lifted to allow for fast emptying the dump trough.
  • the bottom 2 of the garbage truck body 1 features at its rear end a transverse dump trough 3.
  • the emptying shovel or unloading plate 4 of the truck body is longitudinally sliding on guides 5 actuated by a known hydraulic fluid powered system (not shown in the drawings).
  • the compactor 6 is moving along sloping guides and is drived by double acting hydraulic pistons 7.
  • the compactor 6 is equipped at its lower end with a cross scoop 8 rotating on a shaft 9 by double acting hydraulic pistons 10.
  • the upward/downward moving compactor 6 (arrow A in Fig. 1) pushes and pulls the transverse scoop 8 into and from the dump trough (3), so that its rotating movements (arrow B in Fig. 1) will remove the garbage from the dump trough and push it into the truck body 1.
  • the slider guides 12 of the compactor are in two parts: the lower part 13 being secured to the sides of the truck body 1 while the upper part is swiveling on an upper transverse shaft 15, the oscillation being caused by a - usually double acting - hydraulic fluid powered piston 16.
  • the lower part 13 of the guide is usually recessed in the lateral reinforcement 17 of the truck body in which also the guide 5 of the emptying shovel 4 is lodged, while the upper components 14 of the guide consist of channels the legs of which are bent towards the center.
  • the compactor retracted in its top position, with its sliders 12 lodged in the upper guide components 14, is also integral with the cross shaft 15..
  • the piston 16 is actuated, the compactor is raised in its top position and the related upper components 14 of the guides are lifted as shown in Fig. 3 or lowered as shown in Fig. 1
  • this locking device When the compactor is lowered and the lower 13 and upper 14 components are lengthwise matching together, a locking device will ensure the continuity of these guide components 13 and 14 or will permit their separation so that the upper guide components can move upwards .
  • this locking device consists of a pin 18 entering the corresponding hole 19 in the lower end of the channel section forming the upper part 14 of the guide. This pin 18 is connected to the mobile rod of an external double acting hydraulic piston 20 located on each side of the truck body 1.
  • the invention provides for an emptying shovel 4 which, from its front rest position, can be moved along the whole length of the truck body, to the rear end of the truck body.
  • This emptying shovel 4 cannot empty and clear the dump trough 3, since this was unnecessary in previous known solutions, because the dump trough was lifted together with the rear charging mouth.
  • a sliding plate 21 is provided to empty the dump trough 3; the flat is located near and ahead of the emptying shovel 4.
  • This flat section 21 can slide upwards and downwards along opposed side guides (22) being fastened to the emptying shovel 4 and is operated by means of single acting low-pressure hydraulic pistons 23.
  • the garbage truck for solid urban refuse provided with rear dump trough 3 fixed to the truck body, according to this invention is much simpler and effective than similar trucks in which particularly the dump trough is fastened to the upwards moving charging mouth.
  • the locking device 18, 19, 20 between both guide components is no longer necessary.
  • 1 indicates the body of the garbage truck for solid urban refuse.
  • Each side of the truck body 1 is fitted with a system for lifting and emptying of the road garbage bins 24 fitted, as is known, with forks 25 hooked around lateral pins 26 of the road garbage bin 24 and heads 27 resting on the bin 24.
  • the fork 25 is fastened to the end of a horizontally articulated arm 28, so that the forks 25 can clasp the garbage bin and easily hook up around the pins 26.
  • the fork 25 as well as the resting head 27 are rigidly connected to a lever arm or lifting arm 29 rotating with its upper end around a fixed pivot 30.
  • a gear wheel 31 is rigidly connected to the upper end of the lever 29.
  • This gear wheel 31 is driven by a hydraulic piston as shown in fig.8.
  • This hydraulic piston according to this invention, consists of a fixed rod 32, both ends of which 33 and 34 are secured to the truck body sides.
  • a plunger 35 fitted with peripheral seals 36 is rigidly and centrally mounted on this fixed rod 32.
  • a mobile cylinder 37 fitted at both ends with closing and sealing heads 38 and 39, is enclosing both the fixed rod 32 and the plunger 35, thus forming two chambers 40 and 41 inside the cylinder 37 and its heads 38, 39 but ouside the the fixed rod 32.
  • These chambers 40 and 41 are separated by the fixed plunger 35 and may receive and discharge the control fluid through the openings 42 and 43, connected through flexible hoses to the hydraulic fluid control and distribution system.
  • a rackwork 44 is mounted outside the cylinder 37 opposite to the orifices 42, 43 and lengthwise to the cylinder. This rack engages with the gear wheel 31 of the road bin lifting system 24.
  • Charging or discharging of the chambers 40, 41 through the orifices 42, 43 will thus move the cylinder 37 and the rackwork 44 in a straight line in either direction (arrow A or arrow B of fig 8), while the rackwork 44 will move the gear wheel 31 in either direction on its fixed pin 30.
  • Rotation of the gear wheel 31 causes the lever 29 to revolve and hence lifting or lowering of the members 25, 27, 28 which are hooking up the road bin 24 which in turn is raised, emptied and then once more lowered to earth.
  • the device, subject matter of this invention may be used on any type of garbage truck and is particularly suited for medium capacity vehicles equipped with a fixed dump trough in which the road bins are emptied and with a compactor that can be lifted for fast emptying of the truck body, this compactor being schematically outlined, for exemplification purposes, by the short dashes line in fig.6.
  • This compactor is inclined or vertically sliding in lateral guides and can be lifted together with part or all of the guides to permit free movement of the shovel which is to empty the truck body.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Refuse Collection And Transfer (AREA)
  • Refuse-Collection Vehicles (AREA)
  • Loading Or Unloading Of Vehicles (AREA)

Claims (8)

  1. Camion à ordures pour le ramassage des ordures ménagères solides urbains équipé:
    - d'une caisse (1) dans laquelle on récupère les ordures;
    - d'une trémie de chargement transversale arrière (3) fixée à la caisse du camion comme une extension du fond de celle-ci et dans laquelle on vide les récipients à ordures ménagères (24);
    - un compacteur d'ordures (6) se trouvant à l'intérieur de la caisse (1) et destiné à amener les ordures versées dans la trémie (3) à l'intérieur de la caisse;
    - un plateau de déchargement (4) pour le vidage de la caisse (1), lequel est actionné par un dispositif commandé de manière à se déplacer le long de glissières latérales (5) fixées longitudinalement sur les parties latérales internes du châssis du camion; et
    - un dispositif de soulèvement et de vidage des récipients à ordures ménagères (24);
    caractérisé en ce que:
    - ledit compacteur à ordures (6) est actionné par des moyens commandés, de manière à monter et descendre le long de deux glissières inclinées (13, 14) dans lesquelles des coulisses latérales (12) du compacteur sont guidées, chaque glissière étant fixée sur une des parties latérales internes du châssis du camion, et il est pourvu d'une pelle basse (8) pouvant tourner autour d'un axe (9) transversal au camion, alors que lesdites glissières inclinées sont soit divisées en deux parties pourvues d'un mécanisme mutuel de verrouillage et déverrouillage, la partie inférieure (13) étant fixée à la paroi latérale de la caisse du camion, soit formées en bloc, la glissière en bloc ou la partie supérieure 14 dans le cas d'une glissière en deux éléments pouvant être entraînée en rotation autour d'un axe supérieur (15) transversal au camion au moyen d'un piston hydraulique à double effet (16), alors que le contacteur (6) peut pivoter simultanément avec ladite glissière en bloc ou ladite partie supérieure de la glissière en deux éléments lorsqu'il se trouve en position supérieure;
    - ledit plateau de déchargement (4) présente un plateau secondaire (21) transversal au camion et placé parallèlement devant la partie inférieure de celui-ci, lequel, actionné par des pistons à faible pression à simple effet (23), peut glisser derrière le fond du plateau de déchargement le long de glissières fixes (22) situées sur celui-ci de manière à vider le fond abaissé de la trémie lors de l'opération de déchargement, et en ce que
    - lesdits moyens de soulèvement et de vidage sont situés sur l'extérieur des parois latérales de la caisse du camion et comportent deux tiges, (32) dont les extrémités arrière sont attachées à la paroi latérale, et pourvues d'un piston de compression généralement central (35) placé à l'intérieur d'un cylindre mobile (37) équipé à l'extérieur d'une édenture à crémaillère (44) longitudinale agissant sur une roue de transmission (31) fixée à une extrémité d'un bras de levage (29), de manière à ce que le déplacement réciproque du cylindre le long de la tige (32) provoque un pivotement du bras de levage (29) par le biais de la roue de transmission (31).
  2. Camion à ordures selon la revendication 1 caractérisé en ce que les parties inférieures (13) des coulisses (12) du compacteur (6) sont enfoncées dans des renforcements latéraux (17) des parois latérales de la caisse du camion (1) et en ce que ces renforcements latéraux (17) sont aussi pourvus de glissières (5) dans lesquelles le plateau d'éjection (4) se déplace.
  3. Camion à ordures selon la revendication 1 caractérisé en ce que les glissières monobloc (13, 14) ou les éléments supérieurs des glissières (14) ont la forme de sections opposées de barre en U dans lesquelles les coulisses (12) du compacteur (6) se déplacent.
  4. Camion à ordures selon la revendication 1 caractérisé en ce que chaque mécanisme de verrouillage et déverrouillage des deux éléments (13, 14) des coulisses (12) comprend un doigt (18) actionné par un piston à fluide hydraulique à double effet (20) monté sur la surface extérieure de la caisse du camion (1), ce doigt (18) s'engageant dans un orifice (19) situé à la base de l'extrémité inférieure de l'élément supérieur (14) de coulisse.
  5. Camion à ordures selon la revendication 1 caractérisé en ce que le dispositif de soulèvement et de vidage des récipients à ordures ménagères (24) dans la caisse du camion (1), monté à l'extérieur sur les parties latérales du châssis de celui-ci se compose de deux crochets (25) placés respectivement de chaque côté du camion et destinés à s'accrocher autour des charnières (26) situées sur les flancs des récipients à ordures (24), et de deux têtes de support (27) s'appuyant sur le récipient à ordures, chaque crochet se trouvant à l'extrémité d'un bras (28) articulé horizontalement, et étant relié fixement, avec la tête de support (27), à un levier (29) dont l'extrémité supérieure tourne autour d'une goupille de centrage fixe (30), et caractérisé en ce que, pour monter et descendre sur des plans longitudinaux verticaux du camion, le levier (29) est entraîné par:
    - une roue de transmission (31) reliée fixement à l'extrémité du levier (29) soutenu par sa goupille de centrage fixe (30),
    - une tige fixe (32) dont les deux extrémités (33, 34) sont attachées aux parties latérales extérieures de la caisse du camion (1),
    - un piston de compression (35) presque fixé centralement sur la barre (32) et pourvu d'écluses périphériques (36),
    - un cylindre mobile (37) entourant la tige fixe (32) et le piston de compression (35) pourvu de têtes de fermeture et d'étanchéisation (38, 39) à ses deux extrémités;
    - une édenture à crémaillère longitudinale (44) montée sur la surface extérieure du cylindre mobile (37) et s'engrenant dans la roue de transmission (31) reliée au levier (29);
    - deux chambres (40, 41) formées de manière externe par la tige fixe (32) à l'intérieur du cylindre mobile (37) et par les têtes associées (38, 39) mais séparées par le piston de compression (35) fixe, lesquelles sont remplies et vidées via les ouvertures (42, 43) reliées par des tuyaux flexibles à l'unité de commande et de distribution hydraulique.
  6. Camion à ordures selon la revendication 5 caractérisé en ce qu'on a placé symétriquement deux dispositifs de soulèvement sur les parties latérales respectives de la caisse du camion (1).
  7. Mode de fonctionnement du camion à ordures selon la revendication 1 caractérisé par les fonctions suivantes:
    - lorsque les coulisses en bloc sont en position basse ou lorsque les éléments (13, 14) des coulisses alignées sont verrouillés par les doigts (18), le compacteur (6) peut vider la trémie de chargement (3) à l'aide de la pelle oscillante (8) et compacter les ordures dans la caisse du camion (1);
    - pour le vidage de la caisse du camion lorsque celle-ci est pleine, le compacteur (6) monte (6) de manière à ce que les coulisses (12) soient situées dans la partie supérieure (14) des glissières;
    - les pistons hydrauliques (16) ainsi que l'axe (15) entraînent alors le compacteur dans un mouvement rotationnel qui amène celui-ci dans sa position supérieure et lui permet de nettoyer la caisse du camion (1);
    - le plateau de déchargement (4) vide maintenant la caisse du camion tout en nettoyant la trémie (3) avec la partie râcloir plane (21);
    - après le vidage de la caisse du camion (1), le plateau de déchargement (4) et la partie râcloir (21) se rétractent, le compacteur descend en même temps que la glissière monobloc ou les éléments supérieurs (14) de la coulisse et le doigt (18) de manière à ce que le camion soit prêt pour un nouveau chargement.
  8. Mode de fonctionnement du camion à ordures selon les revendications 1 et 5 caractérisé en ce que le cylindre mobile (37) mentionné ci-dessus met en mouvement l'édenture à crémaillère (44) et la roue de transmission (31), et monte ou descend le mécanisme de soulèvement, de vidage et de descente du récipient à ordures ménagères (24), lorsque ce cylindre est actionné linéairement dans une des directions (A) ou (B).
EP94111684A 1993-08-04 1994-07-27 Camion à ordures équipé d'une trémie de chargement fixe arrière et de moyens pour le soulèvement et le vidage de récipients à ordures Expired - Lifetime EP0637555B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
IT000074 IT1262289B (it) 1993-08-04 1993-08-04 Automezzo per la raccolta delle immondizie con cunetta posteriore trasversale al mezzo di carico e compattatore sollevabile.
ITGE930074 1993-08-04
ITGE940033 1994-03-23
IT94GE000033A ITGE940033A1 (it) 1994-03-23 1994-03-23 Dispositivo di sollevamento e svuotamento di contenitori stradali entro il mezzo di raccolta delle immondizie.

Publications (2)

Publication Number Publication Date
EP0637555A1 EP0637555A1 (fr) 1995-02-08
EP0637555B1 true EP0637555B1 (fr) 1996-11-06

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Application Number Title Priority Date Filing Date
EP94111684A Expired - Lifetime EP0637555B1 (fr) 1993-08-04 1994-07-27 Camion à ordures équipé d'une trémie de chargement fixe arrière et de moyens pour le soulèvement et le vidage de récipients à ordures

Country Status (6)

Country Link
EP (1) EP0637555B1 (fr)
AT (1) ATE144960T1 (fr)
DE (1) DE69400850T2 (fr)
DK (1) DK0637555T3 (fr)
ES (1) ES2094015T3 (fr)
GR (1) GR3021940T3 (fr)

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CN104401616A (zh) * 2014-09-19 2015-03-11 陕西汽车集团温州云顶汽车有限公司 环卫垃圾车车箱
CN106395204B (zh) * 2016-11-17 2019-04-19 湖南大学 用于与大型垃圾车进行无缝对接的小型垃圾车
CN108438677B (zh) * 2018-04-10 2024-01-30 扬州金威环保科技有限公司 一种后装压缩式垃圾车
CN108974737A (zh) * 2018-09-21 2018-12-11 常德湘沅实业有限公司 一种地埋式水平移动垃圾压缩站
CN109319358A (zh) * 2018-09-29 2019-02-12 扬州三源机械有限公司 一体式无泄漏后装式垃圾压缩车
US11999562B2 (en) * 2019-05-03 2024-06-04 Oshkosh Corporation Front and side loading packers for electric refuse vehicle
CN110597096B (zh) * 2019-09-29 2020-10-27 北京智行者科技有限公司 一种用于无人驾驶清扫车垃圾收集的控制方法
CN110980064B (zh) * 2019-10-30 2021-09-03 长沙中联重科环境产业有限公司 无泄漏压缩式垃圾车
CN110861859A (zh) * 2019-12-18 2020-03-06 济南大学 一种新型具有自动装卸功能的垃圾车
CN112758561B (zh) * 2020-12-28 2023-08-29 华达（福建龙岩）环卫科技有限公司 一种垃圾压缩车

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014080106A1 (fr) 2012-11-20 2014-05-30 Pb Environnement Benne pour vehicule de collecte de dechets avec compaction amelioree

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ATE144960T1 (de) 1996-11-15
GR3021940T3 (en) 1997-03-31
DE69400850T2 (de) 1997-03-06
DE69400850D1 (de) 1996-12-12
EP0637555A1 (fr) 1995-02-08
DK0637555T3 (da) 1997-04-14
ES2094015T3 (es) 1997-01-01

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