EP0708038A1 - Truck-associated device for gripping and automatically lifting refuse collection bins - Google Patents

Truck-associated device for gripping and automatically lifting refuse collection bins Download PDF

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Publication number
EP0708038A1
EP0708038A1 EP95115609A EP95115609A EP0708038A1 EP 0708038 A1 EP0708038 A1 EP 0708038A1 EP 95115609 A EP95115609 A EP 95115609A EP 95115609 A EP95115609 A EP 95115609A EP 0708038 A1 EP0708038 A1 EP 0708038A1
Authority
EP
European Patent Office
Prior art keywords
arms
truck
bin
support
truck body
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.)
Withdrawn
Application number
EP95115609A
Other languages
German (de)
English (en)
French (fr)
Inventor
Giuseppe Merlo
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.)
Ceb Costruzioni Ecologiche Bergomi Srl
Original Assignee
Ceb Costruzioni Ecologiche Bergomi 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
Application filed by Ceb Costruzioni Ecologiche Bergomi Srl filed Critical Ceb Costruzioni Ecologiche Bergomi Srl
Publication of EP0708038A1 publication Critical patent/EP0708038A1/en
Withdrawn legal-status Critical Current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
    • B65F3/02—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
    • B65F3/046—Pivoted arms or pivoted carriers with additional means for assisting the tipping of the receptacle after or during raising

Definitions

  • This invention relates to a truck-associated device for gripping and automatically lifting a refuse collection bin, of the type described in the pre-characterising part of the main claim.
  • Devices of the aforesaid type have been known for some time (see for example Italian patent application 22400A/87 in the name of Bergomi SpA). These devices are able to lift a bin from the ground, empty it into a compacting hopper or an aperture in a body part of the truck, and then return it to its initial position.
  • the known devices comprise relatively complicated operating means, able to move the gripping arms both horizontally with respect to the truck body so as to bring them into contact with the bin, and rotationally so as to lift it, empty it and return it to its original position.
  • An object of the present invention is to provide a bin gripping and lifting device in which the gripper arm operating means have a limited number of components and undergo simpler movements than known means, so resulting in a lower production, assembly and adjustment cost and time for the device, and in a shorter time required for gripping, lifting and emptying the bin.
  • a device comprises a pair of gripper arms 1 connected to the lifting means, which are indicated overall by 3 and comprise two pairs of slides 4 to which an end portion 1B of the arms 1 is connected, and guides 5A, B along which the slides 4 can slide and which are connected to a cross-member 5 at the lower end 7 of a support structure 8, which is hinged at its upper end 9, opposite its lower end, to supports 10 rigidly fixed to the frame of the body 11 of a truck 16 (shown partially).
  • first cylinders 12 for rotating the arms 1
  • second cylinder 13 for moving the slides along the cross-member (represented schematically by dashed lines in Figure 7)
  • third cylinder 14 for rotating the structure 8
  • the cylinders being all for example of hydraulic type.
  • the arms 1, substantially of conventional type have an elongate structure comprising at its free end a usual gripper head 1A for coupling to conventional gripping elements 17 provided on the sides 18A of a refuse collection bin 18 and comprising conventional members (not shown) for locking the head to said gripping elements 17 to prevent the bin being able to escape from the head when overturned ( Figures 4, 5).
  • the arms 1 internally house usual members 118 (shown schematically in Figure 5) for overturning the bin 18.
  • the arm end portions 1B hinged to the slides 4, and also the heads 1A, are advantageously inclined to a central portion 1C of the arms, ie to the longitudinal axis B' ( Figure 2) of the arm.
  • the slides 4 are rigidly connected to the end 1B of the arms and slide along two guide bars 5A, B connected at their ends to two sidepieces 5C.
  • An end portion 5D of the guide 5B projects from that sidepiece 5C closer to the central structure 2.
  • One end of the cylinder 12 engages said projecting portion 5D.
  • one of the two slides 4 and the relative guide bar 5A are positioned on the terminal part of the end 1B of the arms 1 whereas the other slide and the other guide bar 5B are located on the straight portion of the arms.
  • the cross-member 5 is rigidly fixed to the inner sidepieces 5' which support the guides 5A, 5B.
  • the cross-member is connected to the sidepieces coaxially to the guide 5A.
  • the cross-member 5 is connected to the lower end 7 of the support structure 8 in a manner able to rotate with respect to the structure, with its axis of rotation parallel to said end 7, but unable to translate horizontally.
  • Bearings 6 are provided in the lower end 7 of the structure 8 to facilitate rotation of the cross-member 5.
  • the central structure is essentially of inverted U-shape with its end portion 8C ( Figure 6) advantageously hinged in conventional manner at 15 (Figure 1) to the supports 10, this end portion and the end portion 8B ( Figure 6) being inclined to the flat central part 8A of the structure 8 to face each other ( Figure 6).
  • the cylinder 14 for rotating the structure 8 has one end connected to a support 21 on the vehicle frame, positioned below the hinging support 10 for the structure, and its other end connected to the central piece 22A of a toggle arrangement 22, the ends 22B, C of which are connected to a support 23 on the truck body 11 and to the central structure respectively.
  • the end 22C of the toggle arrangement 22 is connected to the central structure 8 at the upper end portion 8C of this latter.
  • the device comprises an operating and control unit for the cylinders 12, 13 and 14 which actuate the arms 1 and the structure 8.
  • the operating and control unit is of a type conventional to the expert of the art and will therefore not be described in detail hereinafter.
  • the operating and control unit is connected in the usual manner to usual position sensors, and in particular to usual sensors, such as encoders, for measuring the angle of rotation A1 ( Figure 3) of the structure 8 to the truck body 11 and the angle A2 ( Figure 3) between the arms 1 and the structure, and usual sensors, such as photoelectric cells, provided on the head 1A of the arms 1 in order to sense when the heads 1A reach the sides of the bin.
  • the device of the invention operates as follows: the arms 1 are lowered from their rest position ( Figure 2, position indicated by the arrow B), in which the device is substantially coplanar with the wall 11A of the truck body, to a position in which they are able to interfere with the bin ( Figure 2, position indicated by the arrow C).
  • This first movement is obtained by operating the cylinders 12, to cause the cross-member 5 to rotate on the bearings 6 and consequently rotate the arms 1.
  • the structure 8 is then rotated to cause the arms 1 to approach the bin.
  • the structure movement is interrupted when the sensors provided on the heads 1A sense the presence of the bin ( Figure 3, position indicated by the arrow D). It should be noted that advantageously, simultaneously with the said rotation of the structure 8, the arms 1 are also rotated downwards so that the heads 1A always maintain a predetermined distance from the ground.
  • the control unit controls these movements on the basis of the information originating from the position sensors on the structure 8 and the arms 1.
  • the control unit could for example have memorized, for each angular movement of the structure 1 relative to the bin, a corresponding angular value which the arms 1 are to assume relative to the structure. In this manner the control unit can move the arms until these values are attained.
  • the movement involved in the approach of the device to the bin (18) is therefore the combination of only two rotary movements, namely a rotary movement of the structure 8 relative to the truck body 11 and a simultaneous rotary movement of the arms 1 relative to the structure 8.
  • the cylinder 13 causes the heads to approach the sides of the bin so that they can then be raised through a determined angle to engage the gripping elements 17.
  • the control unit advantageously memorizes the angular position of the structure 8 corresponding to this gripping of the bin. This information is subsequently used to return the bin 18 to the same initial position after it has been emptied. At this point the arms are made to further rotate through a predetermined angle A3 to lift the bin from the ground ( Figure 4, position indicated by the arrow E).
  • the structure 8 is then rotated to its position of maximum rotation while maintaining the angle A3 between the structure and the arms 1 constant.
  • the bin lies above a compacting hopper (not shown) or an aperture in the truck body 11 ( Figures 4 and 6, position indicated by the arrow F).
  • the bin is further rotated to empty it completely ( Figure 5).
  • the bin is returned to its original position by repeating the aforedescribed movements in the reverse direction.
  • the bin is moved as a result of the combination of only two rotary movements, ie the rotation of the structure 8 and of the arms 1 connected to it, without the need for horizontal movements by the device.
  • the central structure 8 could comprise two separate support elements each connected to one of the arms 1 and to its own actuator cylinder, or the lever arrangement 22 connecting the structure 8 to the cylinder 14 could be of a type different from that shown.
  • the cross-member 5 could be of different form from that described, and could for example be of the type indicated in Figures 8 and 9 by 115. In this latter modification the cross-member is again connected to the lower end 7 of the central structure 8 (partially shown in Figure 8) in the already described manner, ie such as to rotate on bearings 6.
  • the cross-member 115 is of the telescopic type comprising two rods 117 arranged to slide at least partially within the cross-member.
  • the lower ends 1B of the arms 1 are connected to the free ends of these rods.
  • the cross-member 115 is hollow and comprises in its interior two grooved shafts 116 coaxial to the cross-member and arranged to act as a guide for the rods 117 and to prevent them rotating about the cross-member axis.
  • the rods internally comprise elements 128 ( Figure 9) which engage the grooves 119 of the shafts 116.
  • the end 117A of the rods 117 which is movable within the cross-member 115, is shaped in such a manner as to divide the cavity 115A defined by the cross-member into two separate sealed regions 120A, 120B.
  • wall of the end 117A in contact with the inner wall of the cross-member comprises a seat for the insertion of a seal ring 122.
  • a port 121A, 121B for the passage of hydraulic oil or a similar fluid for moving the rod 117.
  • an element 123 for supporting the rod 117 and for sealing the region 120A of the cross-member.
  • a seal ring 123A and bearings 123B are for example provided for this purpose.
  • cross-member 115 externally comprises elements 125 for connection to the actuator cylinders 12 (not shown in Figure 8).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Loading Or Unloading Of Vehicles (AREA)
  • Forklifts And Lifting Vehicles (AREA)
EP95115609A 1994-10-13 1995-10-04 Truck-associated device for gripping and automatically lifting refuse collection bins Withdrawn EP0708038A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT94MI002099A IT1276857B1 (it) 1994-10-13 1994-10-13 Dispositivo per autocarri per la presa e sollevamento automatico di cassonetti per la raccolta di rifiuti
ITMI942099 1994-10-13

Publications (1)

Publication Number Publication Date
EP0708038A1 true EP0708038A1 (en) 1996-04-24

Family

ID=11369707

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95115609A Withdrawn EP0708038A1 (en) 1994-10-13 1995-10-04 Truck-associated device for gripping and automatically lifting refuse collection bins

Country Status (2)

Country Link
EP (1) EP0708038A1 (it)
IT (1) IT1276857B1 (it)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0201314A2 (en) * 1985-05-06 1986-11-12 Dempster Systems Inc. Fork and arm mechanism for refuse container
DE8811472U1 (de) * 1988-09-10 1988-10-27 Alustahl Behälterbau GmbH & Co KG, 28816 Stuhr Lkw-Kastenaufbau mit einer Müllbehälter-Umladevorrichtung
EP0312900A2 (en) * 1987-10-23 1989-04-26 BERGOMI S.p.A. A device for engaging, lifting and tilting trash or refuse bins, intended for side loading trucks
EP0577566A1 (en) * 1992-06-19 1994-01-05 O.M.B. BRESCIA S.r.l. Equipment for selective collecting, separate transport and disposal of different refuses

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0201314A2 (en) * 1985-05-06 1986-11-12 Dempster Systems Inc. Fork and arm mechanism for refuse container
EP0312900A2 (en) * 1987-10-23 1989-04-26 BERGOMI S.p.A. A device for engaging, lifting and tilting trash or refuse bins, intended for side loading trucks
DE8811472U1 (de) * 1988-09-10 1988-10-27 Alustahl Behälterbau GmbH & Co KG, 28816 Stuhr Lkw-Kastenaufbau mit einer Müllbehälter-Umladevorrichtung
EP0577566A1 (en) * 1992-06-19 1994-01-05 O.M.B. BRESCIA S.r.l. Equipment for selective collecting, separate transport and disposal of different refuses

Also Published As

Publication number Publication date
ITMI942099A0 (it) 1994-10-13
IT1276857B1 (it) 1997-11-03
ITMI942099A1 (it) 1996-04-13

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