US3899091A - Refuse collection apparatus - Google Patents

Refuse collection apparatus Download PDF

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Publication number
US3899091A
US3899091A US264021A US26402172A US3899091A US 3899091 A US3899091 A US 3899091A US 264021 A US264021 A US 264021A US 26402172 A US26402172 A US 26402172A US 3899091 A US3899091 A US 3899091A
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US
United States
Prior art keywords
panel
hopper
refuse
movement
packing
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
US264021A
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English (en)
Inventor
Fred T Smith
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.)
Sargent Industries Inc
Original Assignee
Sargent Industries Inc
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 Sargent Industries Inc filed Critical Sargent Industries Inc
Priority to US264021A priority Critical patent/US3899091A/en
Priority to CA168,883A priority patent/CA1031734A/en
Priority to AU55383/73A priority patent/AU486022B2/en
Priority to DE2327889A priority patent/DE2327889C3/de
Priority to DE19732366450 priority patent/DE2366450A1/de
Priority to DE2366257A priority patent/DE2366257C2/de
Priority to IT50731/73A priority patent/IT988260B/it
Priority to BR4451/73A priority patent/BR7304451D0/pt
Priority to FR7322043A priority patent/FR2189280B1/fr
Priority to SE7308520A priority patent/SE399043B/xx
Priority to JP6860473A priority patent/JPS5511081B2/ja
Priority to GB142776A priority patent/GB1446056A/en
Priority to GB5165675A priority patent/GB1446055A/en
Priority to GB2220173A priority patent/GB1446051A/en
Priority to GB5165575A priority patent/GB1446054A/en
Priority to GB5089075A priority patent/GB1446053A/en
Priority to GB1110676A priority patent/GB1446057A/en
Priority to GB4987575A priority patent/GB1446052A/en
Priority to US440796A priority patent/US3929243A/en
Priority to US05/440,722 priority patent/US3940006A/en
Priority to US440789A priority patent/US3921832A/en
Priority to US05/440,745 priority patent/US3999669A/en
Application granted granted Critical
Publication of US3899091A publication Critical patent/US3899091A/en
Priority to CA255,655A priority patent/CA1030909A/en
Priority to CA255,651A priority patent/CA1030911A/en
Priority to CA255,653A priority patent/CA1030907A/en
Priority to CA255,654A priority patent/CA1030908A/en
Priority to CA255,650A priority patent/CA1030910A/en
Priority to CA255,652A priority patent/CA1030906A/en
Priority to SE7701163A priority patent/SE7701163L/
Priority to SE7701165A priority patent/SE7701165L/
Priority to SE7701164A priority patent/SE7701164L/
Priority to SE7701166A priority patent/SE7701166L/xx
Priority to JP3165177A priority patent/JPS5318123A/ja
Priority to JP3165277A priority patent/JPS5318124A/ja
Priority to JP3165377A priority patent/JPS5318125A/ja
Priority to JP3165077A priority patent/JPS5318122A/ja
Priority to JP3164977A priority patent/JPS5318121A/ja
Priority to JP3165477A priority patent/JPS54110516A/ja
Priority to JP1981166959U priority patent/JPS611121Y2/ja
Priority to US07/077,431 priority patent/USRE33602E/en
Priority to US07/077,432 priority patent/USRE33730E/en
Anticipated expiration legal-status Critical
Ceased 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
    • B65F3/14—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

  • Roston 1 1 ABSTRACT The upper panel of a tailgate assembly is moved in a downward and rearward convexly curved path between an upward and forward position and a rearward and lowered position and the lower panel is rotated forwardly and rearwardly with respect to the upper panel Linkages are included in the tailgate assembly to provide this movement.
  • a lower surface of the fixed panel may have an upwardly curved lower surface which imparts a forward direction of movement to re fuse which is packed against it.
  • the upper panel may have a curved forward surface in close proximity to a rearward surface of the fixed panel. During movement of the upper panel, the rearward surface of the fixed panel removes refuse from the curved forward sur' face.
  • the upper panel is tilted as it moves and during its upward movement the lower portion of the upper panel is tilted forwardly. This imparts a forward move ment to refuse'which is moved through the opening into the storage body.
  • the hopper may include a vertically inclined forward packing surface so that refuse is packed between the curved packing surface and the vertically inclined forward packing surface of the hopper,
  • the hopper may include a straight rearward wall portion with the packing panel having a narrowed lower edge. During its movement into the hopper, the packing panel may be moved so that its narrowed lower edge is in contiguous relation to the straight rearward wall portion of the hopper.
  • the packing panel may include one or more upstanding ribs on its curved packing surface which provide a reduced area for application of high localized pressures to refuse contacted by a rib.
  • PATENTEB AUBI 2 I975 SHEET REFUSE COLLECTION APPARATUS BACKGROUND OF THE INVENTION In collecting refuse, the refuse is generally picked up at individual locations. such as homes, and loaded into a storage body mounted on a truck. When the storage body becomes full, the truck must make a trip to a dumping point to unload the refuse. Depending upon the location of the dumping point, the time required for dumping can be quite substantial. This time is lost time since the refuse collection apparatus performs merely as a truck during its trip to and from the dumping site.
  • the storge body is mounted on a truck frame and mounted behind the storage body is a tailgate structure.
  • the tailgate includes a loading hopper and packing means for removing the refuse from the hopper and packing it under high pressure within the storage body. It is common practice to mount a movable ejection panel within the storage body. During the packing operation, refuse is packed against the ejection panel which moves forwardly within the storage body as the packing operation progresses. When the storage body is completely full, the ejection panel has moved all the way forward to a position adjacent the front of the storage body. During the dumping operation, the tailgate structure is pivoted upwardly with respect to the storage body and the refuse is ejected by moving the ejection panel rearwardly to push the refuse out of the storage body.
  • the tailgate structure which contains the packing mechanism is relatively long, and extends outward a considerable distance from the back of the storage body.
  • the length of the tailgate structure is dictated, to a large extent, by the shape of the loading hopper defined in the lower portion of the tailgate.
  • Present loading hoppers have a generally uniformly curved bottom which slopes gradually downward from a loading lip at the rear of the hopper to a low point and then gradually upward to an inclined passage which leads into the storge body.
  • a panel is rotated through the hopper with the lower edge of the panel following along the curvature of the hopper bottom.
  • the hopper Due to the curved configuration of the hopper bottom to accommodate rotation of the panel, the hopper is relatively long and shallow.
  • the tailgate structure must also be relatively long which produces a tailgate whose center of mass is positioned a considerable distance rearward of the tailgate supporting structure.
  • a further factor contributing to a large and unwieldly refuse collection equipment is the movement of the packing means within the tailgate structure.
  • Many refuse collectors which use pivotally interconnected upper and lower panels for packing (see US. Pat. No. 3,l43,230), employ an upper panel which is reciprocated in a straight-line movement between an upper and forward position and a lower and rearward position.
  • the straight-line path must have a slope which provides substantial horizontal movement to the panel. This, in turn, requires that the tailgate structure be relatively long.
  • the storage body is made from relatively heavy structural members to accommodate the high internal pressures imposed on the body.
  • the high weight of the structural members further contributes to making the refuse collection equipment unwieldly.
  • Added weight in the refuse storage body requires additional weight in the structural members for the truck frame which also increases the weight of the vehicle. As the length and weight of the vehicle are increased, it becomes increasingly more difficult to maneuver in congested areas in picking up refuse.
  • the refuse is moved into a storage body and compacted against an ejection panel.
  • the refuse may be moved in an upward direction against the top of the refuse storage body and impose large stresses on the top of the body. To accommodate these stresses, the top of the refuse body will have to be heavily reinforced and, therefore, heavy.
  • the ejection panel moves forwardly within the storage body.
  • the movement of the ejection panel is generally controlled by a telescopic hydraulic cylinder in which the effective hydraulic area within the cylinder varies with its degree of extension.
  • the refuse within the body also moves as new refuse is packed into the body.
  • the friction between the refuse within the body and the side walls of the body varies depending on the amount of refuse in the body. Due to the various factors which affect movement of the ejection panel and refuse within the body, it is difficult to obtain uniform compaction of the refuse throughout the storage body. Refuse in one region of the storage body may be very densely compacted while refuse in another region may be less densely compacted. It would be desirable to obtain compaction throughout the body at relatively high and uniform compaction pressures at or near the maximum pressures generated by the packing means since this would permit packing more refuse into a storage body of a given volume.
  • a refuse collector which is capable of using a relatively short and deep loading hopper that is positioned rearwardly of and adjacent to an opening into a storage body.
  • an upper panel having a lower panel pivotally connected therewith is moved in a rearwardly and downwardly convexly curved path between an upward and forward position and a downward and rearward position.
  • the path of movement provided the upper panel has a slope which changes from substantially vertical to substantially horizontal as the panel moves from a rearward lowered position to a forward raised position. This provides a high horizontal force component to the panel during the packing cycle without the use of a long tailgate structure.
  • the upper extremity of the opening into the storage body may be provided by a fixed panel having an upwardly curved lower surface.
  • a fixed panel having an upwardly curved lower surface.
  • refuse is packed against the upwardly curved lower surface of the fixed panel. This provides a forward direction of movement to the refuse which assists its movement into the storage body and against the ejection panel. Further, by providing a forward direction of movement to the refuse, the refuse has less tendency to exert high pressures on the top of the refuse body.
  • the upper panel preferably has a curved forward surface in close proximity to a rearward surface of a fixed panel defining the upper extremity of the opening into the storage body. During relative movement between the upper panel and the fixed panel, the rearward surface of the fixed panel removes refuse from the curved forward surface of the upper panel.
  • the panel in providing a rearwardly and downwardly convexly curved path for an upper panel, the panel is preferably tilted as it undergoes movement from a forward raised position to a rearward lowered position and vice versa.
  • the lower portion of the panel is tilted rearwardly while the upper portion of the panel is tilted forwardly.
  • the lower panel is pivotally connected to the upper panel at a point adjacent its lower edge.
  • the pivotal points for the lower panel are moved rearwardly to properly position the lower panel for movement with respect to the hopper.
  • the tilting of the lower portion of the upper panel in a forward direction provides a forward movement to the refuse. This assists in moving the refuse through an opening into the storage body and in compacting the refuse against an ejection panel.
  • a refuse collection apparatus in which a packing panel having a curved furward packing surface is moved through a hopper. As the packing panel moves through the hopper, the refuse has a greater tendency to roll upwardly onto the surface of the panel due to its curved configuration. The refuse is, thus, more readily removed from the hopper by the panel.
  • the packing panel may have one or more upstanding ribs positioned on its curved forward surface.
  • the ribs provide a reduced area for application of high localized pressures to refuse contacted by the rib or ribs as the panel moves through the hopper. If more than one rib is employed, the ribs are positioned in spaced relationship and preferably are positioned vertically with respect to the hopper bottom as the packing panel moves through the hopper.
  • Each of the ribs has sloping side walls which are joined together to form a breaking surface.
  • the sloping side walls of adjacent ribs define a packing region which is bounded by the adjacent side walls and the forward curved surface of the packing panel. Refuse which moves between adjacent ribs into contact with the forward curved surface of the panel is thereby compacted through compression between the side walls of the adjacent ribs.
  • the loading hopper has a vertically inclined forward packing surface.
  • the curved packing surface of the panel preferably makes an angle of at least about with the forward packing surface. This reduces the tendency for refuse to jam between the surface of the packing panel and the forward packing surface of the hopper during upward movement of the packing panel.
  • the loading hopper is provided with a straight rearward wall portion positioned between a loading lip and the hopper bottom.
  • a packing panel is then provided which has a narrowed lower edge.
  • the narrowed lower edge of the panel is then moved in contiguous relation to the straight rearward wall portion of the hopper as the panel moves into the hopper. Refuse which overhangs the loading lip of the hopper is, thereby, subjected to breaking forces by the narrowed lower edge of the packing panel during its movement into the hopper.
  • a unique packing panel for use in a refuse collection apparatus in which the panel has a curved surface that is adapted to contact refuse contained in a hopper during movement of the panel through the hopper.
  • the curvature of the panel surface, as it moves through the hopper assists in removing refuse from the hopper which rolls upwardly onto the panel along the curved surface.
  • the packing panel of my invention may provide one or more upstanding ribs on the curved surface of the panel to provide a reduced area for applicaton of high localized pressure to refuse which is contacted by the rib.
  • the side walls of adjacent ribs define a packing region which is bounded by the side walls and the curved surface of the packing panel.
  • the packing panel may also have a narrowed edge which is adapted to provide high breaking pressures to refuse contacted by the edge.
  • a further corollary to my overall invention involves a unique refuse hopper which is particularly suitable for use in conjunction with the overall apparatus of my invention.
  • the hopper has a lip over which refuse is dumped, a curved bottom portion and a straight wall portion between the lip and the curved bottom portion.
  • Also provided in the hopper is an upwardly inclined structurally reinforced packing surface which is positioned opposite the straight wall portion. Side walls interconnect the bottom with the packing surface and the straight wall portion.
  • refuse compactors presently in use include a storage body having a movable ejection panel within the body and packing means for compacting refuse within the body against the ejection panel.
  • packing means for compacting refuse within the body against the ejection panel.
  • a first hydraulic means which controls the movement of the ejection panel is hydraulically interrelated with a second hydraulic means which controls the movement of the packing means.
  • a sump means is provided for receiving hydraulic fluid from both of the first and second hydraulic means and a control means regulates the flow of hydraulic fluid from the first and second hydraulic means to the sump means.
  • the control means is set to operate at a predeter mined pressure of hydraulic fluid in the second hydraulic means which controls movement of the packing means to momentarily dump hydraulic fluid from both the first and second hydraulic means to the sump means. Dumping of fluid ceases when the pressure of the hydraulic fluid in the second hydraulic means is reduced to a fixed level below the predetermined pressure.
  • the predetermined pressure within the second hydraulic means which actuates the control means is generally set at or near the maximum operating pressure of the packing means. As a result, the refuse is packed at or near the maximum packing pressures obtainable throughout the entire loading operation.
  • the incremental movement of the ejection panel away from the packing means during the packing operation is controlled entirely by the predetermined high pressure level within the hydraulic means which controls the movement of the packing means.
  • the movement of the ejection panel is independent of such variables as the friction of refuse against the walls of the storage container or the effective hydraulic pressure surface within a telescopic cylinder which will vary with its degree of extension.
  • a further aspect of my invention concerns a hydraulic circuit for operation of an upper packing panel that is movably mounted within a tailgate structure for upand-down movement with respect to a loading hopper and a lower packing panel mounted for forward and rearward rotation with respect to the hopper.
  • a first hydraulic means is operably connected to the upper packer panel to provide up-and-down movement of the panel while a second hydraulic means is operably connected to the lower packer panel to provide forward and rearward rotation of the lower panel.
  • the second hydraulic means provides a relatively quick rotation of the lower panel in a rearward direction with relatively low rotational force exerted on the panel and a relatively slow rotation of the lower panel in a forward direction with relatively high rotational force exerted on the panel.
  • a first feed means is provided to feed hydraulic fluid to the second hydraulic means to rotate the lower panel in a rearward direction and to hold the panel in a rearward position.
  • a second feed means is provided to feed hydraulic fluid to the first hydraulic means while withdrawing hydraulic fluid from the first hydraulic means and combining the withdrawn fluid with the feed fluid to establish a regenerative loop to the first hydraulic means.
  • the use of a regenerative loop provides relatively quick downward movement of the upper panel after which the upper panel is held in a lowered position.
  • a thisd feed means is provided to feed hydraulic fluid to the second hydraulic means to rotate the lower panel in a forward direction and to hold the lower panel in a forward position.
  • a fourth feed means is provided to feed hydraulic fluid at a relatively high pressure to the first hydraulic means to move the upper packing panel in an upward direction to move refuse from the hopper and through an opening into a storage body.
  • a further aspect of the invention includes the provision of a unique storage body for containing refuse under pressure.
  • the body includes a reinforced bottom, a pair of parallel reinforced side walls, and a top.
  • the top has a uniformly curved configuration and curves upwardly from its juncture with the side walls.
  • the high point in the curvature of the top lies midway between the side walls and the high point has a preselected chordal height.
  • the preselected chordal height of the high point of the top curvature provides a top in which the metal is primarily in tension in resisting the forces exerted on the top by the side walls due to the pressure of refuse within the storage body.
  • reinforcing members positioned along the side walls at the line of juncture between the side walls and the top have a shape which reduces the abruptness in the change of the surface at the juncture between the side walls and the top to reduce the stress concentration at the juncture.
  • the bottom portion of the storage body is preferably bent upwardly at either side to form side fold portions which are joined to the side walls to form a watertight dam between the bottom and the side walls.
  • the side fold portions are preferably bent adjacent their upper ends to form guideways which extend into corresponding grooveways on the sides of the ejector panel.
  • a hard metal slide plate is preferably attached to the structure supporting the ejection panel in sliding engagement with the metal forming the bottom of the storge body.
  • the bottom of the storage body is formed of a softer metal than the slide plate.
  • Hard refuse materials become imbedded in the metal of the floor in the region of contact of the floor with the slide plate during usage of the apparatus.
  • the hard imbedded refuse materials form a slippery surface on which the slide plate moves.
  • An ejector panel having particular suitability in the overall apparatus of the present invention has a packing surface formed from a plurality of acruate segments.
  • a brace member is positioned between pairs of arcuate segments and the chordal height of each of the segments is selected to permit the segments to be in tension in resisting packing pressure imposed by refuse.
  • the length of arc of the arcuate segments is selected to reduce the end forces transmitted from the arcuate seg ments to the brace members which support them.
  • a storage body is utilized for holding refuse under pressure with the storage body having an opening through which refuse is packed.
  • a plurality of parallel side support members are positioned along the side walls of the storage body to resist the side loading exerted by the pressure of refuse within the body. The pressures exerted by the refuse are higher adjacent the opening into the body.
  • the side support members are spaced closer together in the region adjacent to the opening of the storage body and are moved further apart in the areas of the side wall which are positioned further away from the opening.
  • FIG. 1 is a side elevational view of a truck chassis supporting a storage body with a tailgate structure positioned rearwardly of the storage body;
  • FIG. 2 is a side elevational view of the tailgate structure with the protective cover removed which shields certain of the movable structural elements;
  • FIG. 3 is a partial end view of the tailgate structure, as seen from the left side along lines 3-3 in FIG. 2, with portions broken away or in section to illustrate specific details;
  • FIG. 4 is a partial side sectional view of the tailgate structure illustrating the upper and lower packing panels in a raised position prior to initiation of the packing cycle;
  • FIG. 5 is a partial side sectional view, similar to FIG. 4, showing the rotation of the lower packing panel in a rearward direction with respect to the upper packing panel in the first step of the packing cycle;
  • FIG. 6 is a partial side sectional view, similar to FIG. 5, illustrating the next movement in the packing cycle in which the upper packing panel is moved from a forward and upward position to a lowered and rearward position;
  • FIG. 7 is a partial side sectional view, similar to FIG. 6, illustrating the next movement in the packing cycle in which the lower packing panel has moved forwardly through the loading hopper while the upper packing panel has been held in a lowered position;
  • FIG. 8 is a front elevational view of a lower packing panel
  • FIG. 9 is a sectional view through the packing panel of FIG. 8 along the lines 9-9;
  • FIG. 10 is a sectional view through a rib portion of the packing panel of FIG. 8 along the lines l0l0;
  • FIG. 11 is a side elevational view of a storage body, partly in section, to illustrate movement of the ejection panel within the storage body;
  • FIG. 12 is a partial section side elevational view, similar to FIG. 11, illustrating the movement of the ejection panel within the storage body;
  • FIG. 13 is a rear elevational view of a refuse storage body with the tailgate section removed to show the ejection panel during unloading of the storage body;
  • FIG. I4 is a detailed sectional view of the structure indicated by the arrow 14-14 in FIG. 13 illustrating the structure for guiding and slidably positioning the ejection panel within the storage body;
  • FIG. 15 is a partial end elevation of the storage body as viewed from the tailgate end with the tailgate removed;
  • FIG. 16 is a partial end elevation of the storage body as viewed from the end adjacent the cab;
  • FIG. 17 is a partial side elevational view of the storage body
  • FIG. 18 is a schematic drawing illustrating the hydraulic circuitry employed in actuation of the packing panels, the ejector panel, and auxiliary equipment, and
  • FIG. 19 is a partial side elevational view of the tailgate illustrating the control linkage used in automatically cycling the packing panel through a packing cycle
  • FIG. 20 is a schematic drawing illustrating the electrical circuit for controlling the power input from the truck engine to the pump during the packing cycle.
  • FIG. 1 illustrates a refuse collection apparatus in combination with a wheeled vehicle with the overall combination referred to as a truck 2.
  • the truck 2 includes a cab 4, a frame 5 which supports a storage body 6, and a tailgate 8.
  • the tailgate 8 is connected to the storage body 6 through a pair of hinges 10 with a lock 1 1.
  • the tailgate 8 On releasing the lock 1 1, the tailgate 8 may be pivoted upwardly with respect to the body 6 about the hinges 10.
  • a cover plate 13 is mounted on either side of the tailgate structure to cover certain of the mechanism which is positioned exteriorly of its side walls.
  • the cover plates 13 are connected to the tailgate through hinges l5 and may be swung away from the tailgate by rotation about the hinges.
  • the storage body 6 includes a plurality of parallel spaced side braces 7 which are spaced more closely together in the area adjacent to the connection of the body to the tailgate. Moving from the left to right in FIG. 1, the side braces 7 are positioned increasingly further apart.
  • the rear edge of the body 6 forms a slanting surface 17 which joins a correspondingly slanted surface on the tailgate 8.
  • the side supports 7 are each parallel to the slanting surface 17.
  • FIG. 2 is a side elevational view of the tailgate 8 with the cover plate 13 removed.
  • a hopper I2 is defined in the lower portion of the tailgate 8.
  • the hopper 12 has a curved bottom 14, a vertically inclined forward packing surface 16, a loading lip 18 and a straight rearward wall portion 20 interconnecting the loading lip with the curved bottom 14.
  • forward and rearward forward refers to a direction toward the cab 4 while rearward refers to a direction toward the tailgate 8.
  • an upper packing panel 22 and a lower packing panel 24 Positioned between the side walls 19 of the tailgate 8 are an upper packing panel 22 and a lower packing panel 24.
  • a pair of lower stub shafts 26 carried at the lower extremity of the upper panel 22 pivotally support the lower packing panel 24 for rotational movement with respect to the upper panel 22.
  • a pair of lower links 28 are each pivotally connected to a stub shaft 26 at one end while their other ends are pivotally connected to pivots 32 on either side of the tailgate structure supported by pivot brackets 34.
  • the upper packing panel 22 is also supported by a pair of upper links 30 which are each pivotally connected at one end to an upper stub shaft 36 carried on the upper panel 22. The other ends of the upper links 30 are connected to pivots 64 supported by the tailgate structure.
  • a fixed panel 38 is positioned transversely across the tailgate 8 and defines the upper extremity of an opening 66 leading from the tailgate 8 into the storage body 6 when the tailgate and the storage body are connected together.
  • the lower extremity of the opening 66 is defined by the upper end of the packing surface 16 within hopper 12.
  • the motive power for the upper packing panel 22 is provided by a pair of hydraulic cylinders 40 which are mounted on either side of the tailgate 8 exteriorly of the side walls
  • the hydraulic cylinders 40 are each connected at their upper ends to pivots 42 supported by the tailgate 8.
  • the lower ends of the hydraulic cylinders are pivotally connected to extensions of the lower stub shafts 26 which extend through curved slots 60 in the side walls 19.
  • a pair of hydraulic cylinders 44 are mounted inwardly of the side walls 19 to provide the motive power for the lower packing panel 24.
  • the upper portions of the cylinders 44 are connected to pivots 45 carried by the upper packing panel 22 while the lower portions of the cylinders 44 are connected to pivots 46 carried by the lower packing panel 24.
  • a pair of hydraulic cylinders 48 mounted exteriorly of side walls 19 provides the motive power for raising and lowering the tailgate 8 with respect to the refuse body 6.
  • the forward ends of the cylinders 48 are connected to pivots 56 carried by pivot brace members 58 attached to the refuse body 6.
  • the rearward ends of the cylinders 48 are connected to pivots 50 supported by pivot brackets 52 carried by structural members 54 of the tailgate 8.
  • a portion of the upper panel 22 and portions of the upper links 30 extend through openings (not shown) in the upper surface of the tailgate 8 when the upper panel 22 is positioned as in FIG. 2.
  • a pair of pivot openings 62 in the tailgate 8 are engaged by a pin (not shown) in providing hinges (FIG. 1) between the tailgate 8 and the storage body 6.
  • the structure On extension of the hydraulic cylinders 48, the structure is pivoted upwardly about the axis of the pivot opening 62 with respect to the storage body 6.
  • the tailgate 8 pivots downwardly about the axis of the pivot openings 62 into engagement with the rearward surface 17 of the storage body 6 as shown in FIG. 1.
  • FIG. 3 which is a partial end view of the tailgate 8, illustrates the relative positions of the upper links 30, the lower links 28, and the hydraulic cylinders 40 and 44.
  • the stub shaft 26 extends through the side wall 19 and connected to its outer end are a lower link 28 and a piston rod 68 extending from hydraulic cylinder 40.
  • the cover plate 13 shields the hydraulic cylinder 40 and lower link 28 to prevent contact with these elements during cycling of the packing means.
  • the upper link 30 is pivotally connected to upper stub shaft 36 which is held between support braces 74 extending from the upper panel 22.
  • the hydraulic cyI- inder 44 is pivotally connected to a pivot shaft 45 which is also held between support braces 74.
  • a piston rod 76 extending from hydraulic cylinder 44 is connected at its lower end to the pivot 46 carried by the lower panel 24.
  • the upper links 30 and hydraulic cylinders 44 are positioned inwardly from the side wall 19 while the hydraulic cylinders 40 and lower links 28 are positioned outwardly of side wall 19.
  • the upper links 30, lower links 28 and the hydraulic cylinders 40 and 44 are each mounted to provide for some lateral movement with respect to their pivotal mountings. This permits the links 30 and 28 and cylinders 40 and 44 to shift laterally under the influence of unbalanced loading on the upper panel 22 or lower panel 24.
  • the bearing surfaces on the supporting pivotal mountings are woven Teflon fabric bonded with an adhesive to the pivot support shaft which engages the eye connection of the link or hydraulic cylinder. During usage, the Teflon fabric flows into any holes in the pivot support shaft to give a uniform bearing surface.
  • the Teflon provides a low coefficient of friction to permit lateral movement between the eye connection of the link or hydraulic piston and the pivotal support shaft to provide a lateral floating action of the upper panel 22 and lower panel 24 relative to the tailgate 8.
  • the woven Teflon fabric is bonded with an adhesive to the inner surface of a steel bushing which is pressed into the eye connection of the links or the rod ends of the hydraulic cylinders. The inner surface of the bushing then engages the pivot support shaft with the Teflon providing a low coefiicient of friction between the bushing and the shaft.
  • a gap 33 is provided between the sides of the upper and lower panels 22 and 24, and the inner surfaces of the tailgate side walls 19.
  • the side walls 19 are constructed of steel sheets which are both strong and hard such as 165,000 psi sheets having a Brinnell hardness of 360 to 400.
  • the extreme hardness of side walls 19 provides a durable bearing surface against which the relatively large side areas of the upper and lower panels 22 and 24 may rub during lateral movement of the panels to provide a floating action in movement of the panels to relieve unbalanced refuse loadings.
  • FIGS. 4-7 are each partial side sectional views of the tailgate 8.
  • the lower panel 24 has been shaded in these Figures to better illustrate its movement.
  • FIG. 4 illustrates the beginning of a packing cycle with the upper panel 22 in a raised forward position and the lower packing panel 24 rotated forwardly with respect to the upper panel 22. In this position, refuse is held within the storage body 6 by the lower packing panel 24 which extends into the opening 66. To hold the panels in the position shown in FIG. 4, hydraulic cylinders 44 are extended while hydraulic cylinders 40 are contracted.
  • the upper packing panel 22 has a curved forward surface 78 while the fixed panel 38 has a lower edge surface 80 which is in close proximity to the surface 78.
  • the fixed panel 38 has a curved upwardly extending lower surface 82.
  • a rear opening 86 in the tailgate 8 permits refuse to be dumped into the hopper 12 over the lip 18.
  • the tailgate 8 has a rear wall 84 which terminates at an inwardly bent portion 88.
  • the upper extremity of the opening 86 is defined by the bent portion 88 while the lower extremity is defined by the lip 18.
US264021A 1972-06-19 1972-06-19 Refuse collection apparatus Ceased US3899091A (en)

Priority Applications (41)

Application Number Priority Date Filing Date Title
US264021A US3899091A (en) 1972-06-19 1972-06-19 Refuse collection apparatus
CA168,883A CA1031734A (en) 1972-06-19 1973-04-17 Refuse collection apparatus
AU55383/73A AU486022B2 (en) 1972-06-19 1973-05-08 Refuse collection apparatus
DE19732366450 DE2366450A1 (de) 1972-06-19 1973-06-01
DE2366257A DE2366257C2 (de) 1972-06-19 1973-06-01 Kastenartiger Müllspeicherbehälter
DE2327889A DE2327889C3 (de) 1972-06-19 1973-06-01 Müllfahrzeug
IT50731/73A IT988260B (it) 1972-06-19 1973-06-12 Dispositivo per la raccolta di piriuti
BR4451/73A BR7304451D0 (pt) 1972-06-19 1973-06-14 Aparelho para coleta de lixo
FR7322043A FR2189280B1 (de) 1972-06-19 1973-06-18
SE7308520A SE399043B (sv) 1972-06-19 1973-06-18 Uppsamlingsmaskin for avfall
JP6860473A JPS5511081B2 (de) 1972-06-19 1973-06-18
GB5165675A GB1446055A (en) 1972-06-19 1973-06-19 Refuse collection apparatus
GB2220173A GB1446051A (en) 1972-06-19 1973-06-19 Refuse packing apparatus
GB5165575A GB1446054A (en) 1972-06-19 1973-06-19 Refuse collection apparattus
GB5089075A GB1446053A (en) 1972-06-19 1973-06-19 Refuse collection apparatus
GB1110676A GB1446057A (en) 1972-06-19 1973-06-19 Refuse collection apparatus
GB4987575A GB1446052A (en) 1972-06-19 1973-06-19 Refuse collection apparatus
GB142776A GB1446056A (en) 1972-06-19 1973-06-19 Refuse collection apparatus
US05/440,722 US3940006A (en) 1972-06-19 1974-02-08 Refuse hopper
US440789A US3921832A (en) 1972-06-19 1974-02-08 Refuse collection apparatus
US440796A US3929243A (en) 1972-06-19 1974-02-08 Refuse collection apparatus
US05/440,745 US3999669A (en) 1972-06-19 1974-02-08 Refuse collection apparatus
CA255,655A CA1030909A (en) 1972-06-19 1976-06-25 Refuse collection apparatus
CA255,651A CA1030911A (en) 1972-06-19 1976-06-25 Refuse collection apparatus
CA255,653A CA1030907A (en) 1972-06-19 1976-06-25 Refuse collection apparatus
CA255,654A CA1030908A (en) 1972-06-19 1976-06-25 Refuse collection apparatus
CA255,650A CA1030910A (en) 1972-06-19 1976-06-25 Refuse collection apparatus
CA255,652A CA1030906A (en) 1972-06-19 1976-06-25 Refuse collection apparatus
SE7701166A SE7701166L (sv) 1972-06-19 1977-02-03 Uppsamlingsmaskin for avfall
SE7701165A SE7701165L (sv) 1972-06-19 1977-02-03 Forvaringsbehallare for avfall
SE7701163A SE7701163L (sv) 1972-06-19 1977-02-03 Forvaringsbehallare for avfall
SE7701164A SE7701164L (sv) 1972-06-19 1977-02-03 Forvaringsbehallare for avfall
JP3165477A JPS54110516A (en) 1972-06-19 1977-03-24 Garbage collector
JP3165077A JPS5318122A (en) 1972-06-19 1977-03-24 Refuse apparatus
JP3165277A JPS5318124A (en) 1972-06-19 1977-03-24 Refuse collecting apparatus
JP3165377A JPS5318125A (en) 1972-06-19 1977-03-24 Refuse compacting and loading apparatus
JP3165177A JPS5318123A (en) 1972-06-19 1977-03-24 Refuse storing apparatus
JP3164977A JPS5318121A (en) 1972-06-19 1977-03-24 Refuse compacting and loading apparatus
JP1981166959U JPS611121Y2 (de) 1972-06-19 1981-11-09
US07/077,431 USRE33602E (en) 1972-06-19 1987-07-24 Refuse collection apparatus
US07/077,432 USRE33730E (en) 1972-06-19 1987-07-24 Refuse collection apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US264021A US3899091A (en) 1972-06-19 1972-06-19 Refuse collection apparatus

Related Child Applications (4)

Application Number Title Priority Date Filing Date
US05/440,722 Division US3940006A (en) 1972-06-19 1974-02-08 Refuse hopper
US05/440,745 Division US3999669A (en) 1972-06-19 1974-02-08 Refuse collection apparatus
US07/077,432 Division USRE33730E (en) 1972-06-19 1987-07-24 Refuse collection apparatus
US07/077,431 Reissue USRE33602E (en) 1972-06-19 1987-07-24 Refuse collection apparatus

Publications (1)

Publication Number Publication Date
US3899091A true US3899091A (en) 1975-08-12

Family

ID=23004222

Family Applications (1)

Application Number Title Priority Date Filing Date
US264021A Ceased US3899091A (en) 1972-06-19 1972-06-19 Refuse collection apparatus

Country Status (9)

Country Link
US (1) US3899091A (de)
JP (8) JPS5511081B2 (de)
BR (1) BR7304451D0 (de)
CA (1) CA1031734A (de)
DE (3) DE2366257C2 (de)
FR (1) FR2189280B1 (de)
GB (7) GB1446051A (de)
IT (1) IT988260B (de)
SE (5) SE399043B (de)

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US4042133A (en) * 1975-06-06 1977-08-16 Sargent Industries, Inc. Refuse compactor
US5158340A (en) * 1991-09-05 1992-10-27 Mcneilus Truck And Manufacturing, Inc. Tailgate mechanism for rear loading compactor
US5498067A (en) * 1994-01-14 1996-03-12 Mcneilus Truck And Manufacturing, Inc. Lifting latch hinge for tailgate on refuse hauler/compactor
US5816766A (en) * 1997-02-11 1998-10-06 Toccoa Metal Technologies, Inc. Refuse vehicle dumping system
US6485244B1 (en) 2001-07-28 2002-11-26 The Heil Company Dual track assembly for refuse collection equipment
US20050105993A1 (en) * 2003-02-25 2005-05-19 Hagenbuch Leroy Rear eject body for haulage units
US7066705B1 (en) 2002-07-30 2006-06-27 The Heil Company Rear loader collection vehicle with detachable container
US20080145200A1 (en) * 2002-02-25 2008-06-19 Hagenbuch Leroy G Rear eject body for off-highway haulage units
US20080298941A1 (en) * 2003-02-25 2008-12-04 Hagenbuch Leroy G Charge Bucket Loading for Electric ARC Furnace Production
US20090256018A1 (en) * 2008-04-10 2009-10-15 Cedarapids, Inc. Mobile system and method for crushing rock while isolating electronic components from excessive vibration
US9295198B2 (en) 2012-05-09 2016-03-29 Cnh Industrial America Llc Density system bypass for a round baler
US9573508B2 (en) 2015-05-14 2017-02-21 Monte Busser Vehicle dumping bed cleaning device
CN109264268A (zh) * 2018-11-03 2019-01-25 段荣利 一种具有垃圾压缩功能的垃圾车的工作方法

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JPS5179417A (ja) * 1974-12-27 1976-07-10 Fuji Heavy Ind Ltd Jinkaishanojinkaiatsushukuoshikomisochi
JPS52137815A (en) * 1976-05-13 1977-11-17 Morita Tokushu Kiko Refuse compacting and loading apparatus for refuse collecting vehicle
JPS535870A (en) * 1976-07-02 1978-01-19 Shin Meiwa Ind Co Ltd System for controlling operation of push plate in waste-pushing
JPS53122818U (de) * 1977-03-08 1978-09-29
JPS53119516A (en) * 1977-03-24 1978-10-19 Morita Tokushu Kiko Dusty controller of dusty collecting vehicle
DE2736593C2 (de) * 1977-08-13 1982-03-25 Fahrzeugbau Haller Gmbh, 7000 Stuttgart Hydraulisches Steuersystem für Schüttgutbehälter
DE2759576C2 (de) * 1977-09-21 1985-12-05 Fahrzeugbau Haller Gmbh, 7000 Stuttgart Beladevorrichtung für Schüttgutbehälter
DE2742401C3 (de) 1977-09-21 1985-12-12 Fahrzeugbau Haller Gmbh, 7000 Stuttgart Beladevorrichtung für Schüttgutbehälter
JPS5810322B2 (ja) * 1978-04-24 1983-02-25 富士重工業株式会社 塵芥収集車の塵芥排出装置
FR2436092A1 (fr) * 1978-09-18 1980-04-11 Ctia Perfectionnement aux systemes de tassement de charges solides dans un receptacle
JPS5546477U (de) * 1978-09-22 1980-03-26
JPS55127737A (en) * 1979-03-26 1980-10-02 Sony Corp Noise elimination circuit
JPS598178Y2 (ja) * 1979-06-01 1984-03-13 株式会社日立製作所 軸受温度検出装置
FR2483372A1 (fr) * 1980-05-30 1981-12-04 Colin Marcel Dispositif de chargement et de compactage de dechets dans un receptacle fixe ou mobile
DE3069167D1 (en) * 1980-10-10 1984-10-18 Moser Ernst Ag Refuse receptacle construction
JPS6224989Y2 (de) * 1981-01-27 1987-06-26
FR2537554B1 (fr) * 1982-07-23 1987-08-28 Transports Automobiles Ste Ind Dispositif pour la charge avec compression de solides dans un receptacle
GB2131386A (en) * 1982-11-30 1984-06-20 Allen Jack Load handling vehicle
US4664017A (en) * 1984-03-19 1987-05-12 General Signal Corporation Hydraulic control system and valve
FR2576292B2 (fr) * 1984-05-23 1988-01-29 Bricaud Jean Paul Perfectionnement aux bennes pour produits compactables
US4642019A (en) * 1984-12-19 1987-02-10 General Signal Corporation Hydraulic control system and valve therefor
JPH042883Y2 (de) * 1985-10-30 1992-01-30
JPH0649521Y2 (ja) * 1989-05-10 1994-12-14 新明和工業株式会社 塵芥収集車
JPH04122183U (ja) * 1991-04-23 1992-11-02 ワイケイケイアーキテクチユラルプロダクツ株式会社 扉における無目カバーの取付構造
JP6388505B2 (ja) * 2014-07-28 2018-09-12 新明和工業株式会社 塵芥収集車

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US2690712A (en) * 1951-02-19 1954-10-05 Stratton Equipment Company Automatic throttle control
US2865286A (en) * 1953-12-31 1958-12-23 Edward T Newell Plows for garbage trucks
US3092269A (en) * 1959-04-28 1963-06-04 City Tank Corp Packer assembly
US3220586A (en) * 1963-08-26 1965-11-30 Leach Corp Refuse collecting and transporting vehicle
US3556324A (en) * 1965-12-27 1971-01-19 Gar Wood Ind Inc Refuse packing system and method
US3499558A (en) * 1967-03-01 1970-03-10 Fernand Rey Loading device
US3455471A (en) * 1967-04-17 1969-07-15 Eagle Eng Co Ltd Refuse collecting vehicles
US3559825A (en) * 1968-12-31 1971-02-02 Heil Co Refuse body loading mechanism
US3615028A (en) * 1969-02-19 1971-10-26 Harsco Corp Refuse handling apparatus
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4042133A (en) * 1975-06-06 1977-08-16 Sargent Industries, Inc. Refuse compactor
US5158340A (en) * 1991-09-05 1992-10-27 Mcneilus Truck And Manufacturing, Inc. Tailgate mechanism for rear loading compactor
US5498067A (en) * 1994-01-14 1996-03-12 Mcneilus Truck And Manufacturing, Inc. Lifting latch hinge for tailgate on refuse hauler/compactor
US5816766A (en) * 1997-02-11 1998-10-06 Toccoa Metal Technologies, Inc. Refuse vehicle dumping system
US6485244B1 (en) 2001-07-28 2002-11-26 The Heil Company Dual track assembly for refuse collection equipment
US7878751B2 (en) 2002-02-25 2011-02-01 Hagenbuch Leroy G Rear eject body for off-highway haulage units
US20080145200A1 (en) * 2002-02-25 2008-06-19 Hagenbuch Leroy G Rear eject body for off-highway haulage units
US7066705B1 (en) 2002-07-30 2006-06-27 The Heil Company Rear loader collection vehicle with detachable container
US20080298941A1 (en) * 2003-02-25 2008-12-04 Hagenbuch Leroy G Charge Bucket Loading for Electric ARC Furnace Production
US20050105993A1 (en) * 2003-02-25 2005-05-19 Hagenbuch Leroy Rear eject body for haulage units
US20090256018A1 (en) * 2008-04-10 2009-10-15 Cedarapids, Inc. Mobile system and method for crushing rock while isolating electronic components from excessive vibration
US7992814B2 (en) 2008-04-10 2011-08-09 Terex Usa, Llc Mobile system and method for crushing rock while isolating electronic components from excessive vibration
US8403244B2 (en) 2008-04-10 2013-03-26 Terex Usa, Llc Mobile system and method for crushing rock while isolating electronic components from excessive vibration
US9295198B2 (en) 2012-05-09 2016-03-29 Cnh Industrial America Llc Density system bypass for a round baler
US9573508B2 (en) 2015-05-14 2017-02-21 Monte Busser Vehicle dumping bed cleaning device
CN109264268A (zh) * 2018-11-03 2019-01-25 段荣利 一种具有垃圾压缩功能的垃圾车的工作方法

Also Published As

Publication number Publication date
DE2327889B2 (de) 1978-12-14
JPS5651961B2 (de) 1981-12-09
JPS54110516A (en) 1979-08-30
GB1446055A (en) 1976-08-11
SE399043B (sv) 1978-01-30
DE2366257C2 (de) 1983-03-17
AU5538373A (en) 1974-11-14
IT988260B (it) 1975-04-10
JPS5318123A (en) 1978-02-20
FR2189280A1 (de) 1974-01-25
BR7304451D0 (pt) 1974-09-05
DE2366450A1 (de) 1982-09-23
JPS5648402B2 (de) 1981-11-16
DE2327889A1 (de) 1974-01-17
FR2189280B1 (de) 1978-02-10
SE7701164L (sv) 1977-02-03
GB1446051A (en) 1976-08-11
JPS611121Y2 (de) 1986-01-16
GB1446056A (en) 1976-08-11
GB1446054A (en) 1976-08-11
SE7701166L (sv) 1977-02-03
SE7701163L (sv) 1977-02-03
CA1031734A (en) 1978-05-23
JPS5318124A (en) 1978-02-20
GB1446052A (en) 1976-08-11
JPS5318125A (en) 1978-02-20
GB1446057A (en) 1976-08-11
GB1446053A (en) 1976-08-11
JPS5648404B2 (de) 1981-11-16
JPS4967464A (de) 1974-06-29
JPS57174404U (de) 1982-11-04
JPS5511081B2 (de) 1980-03-22
SE7701165L (sv) 1977-02-03
JPS5318121A (en) 1978-02-20
JPS5318122A (en) 1978-02-20
JPS5648403B2 (de) 1981-11-16
DE2327889C3 (de) 1979-08-16

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Legal Events

Date Code Title Description
RF Reissue application filed

Effective date: 19870724