US3884372A - Refuse loader - Google Patents

Refuse loader Download PDF

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Publication number
US3884372A
US3884372A US302564A US30256472A US3884372A US 3884372 A US3884372 A US 3884372A US 302564 A US302564 A US 302564A US 30256472 A US30256472 A US 30256472A US 3884372 A US3884372 A US 3884372A
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United States
Prior art keywords
tailgate structure
hydraulic cylinder
cylinder
refuse
storage compartment
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
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US302564A
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English (en)
Inventor
Takehiko Kunii
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Individual
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Individual
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Publication date
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Publication of US3884372A publication Critical patent/US3884372A/en
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    • 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

Definitions

  • ABSTRACT A refuse loader having a storage compartment, a hol- 301 Foreign A n ti priority Data low tailgate structure adjgcent to the rear and of tllie I storage compartment an an apparatus su stantia y May 1972 Japan 47 45199 mounted in the hollow tailgate structure.
  • the apparatus comprises a sweep panel for compressing refuse loaded Onto the bottom of the tailgate structure [58] Fie'ld 3 503 grinding it and transferring it into the storage compartment, hydraulic cylinder assemblies for operation [56] References Cited of this sweep panel, and link mechanisms connecting UNITED STATES PATENTS the cylinder assemblies to the sweep panel.
  • the present invention relates to a refuse loader for loading refuse into a storage compartment and compressing it therein.
  • a refuse loader having a storage compartment and a hollow tailgate structure adjacent to the rear end of the storage compartment, it is desirable that the storage compartment have as much space for refuse as possible. For this reason, it is necessary that the tailgate structure, in contrast with the storage compartment be as compact as possible. Moreover, the refuse must be ground during transfer from the tailgate structure to the storage compartment and compressed therein.
  • one object of the present invention is to provide a refuse loader of the above type, which has a compact hollow tailgate structure to allow as much space for the storage compartment as possible.
  • Another object of the present invention is to provide a refuse loader of the above type, for which the hollow tailgate structure has an apparatus therein for grinding the refuse while transferring it through the bottom por* tion of the hollow tailgate structure toward the storage compartment by means of a sweep panel.
  • a further object of the present invention is to provide a refuse loader of the above type for which the hollow tailgate structure has an apparatus therein which comprises a sweep panel, a rail member, and hydraulic cylinder assemblies for driving the sweep panel along the rail member.
  • the sweep panel is moved up and down, or swung in one direction in order to compress the refuse loaded onto the bottom of the tailgate structure, and grinding it and transferring toward the storage compartment.
  • a further object of the present invention is to provide a refuse loader of the above type for which the hollow tailgate structure is swung upwards about the rear end uppermost portion of the storage compartment for dumping refuse loaded therein without any specially mounted driving source but the hydraulic cylinder assemblies for driving the sweep panel.
  • a further object of the present invention is to provide a refuse loader which is simple in construction, economical to manufacture and operate, and efficient in operation in handling a supply of refuse.
  • FIG. I is a partial, foreshortened side elevational view of a refuse collector provided with the loader of the present invention.
  • FIG. 2 FIG. 5 are side elevational views ofa portion of the collector and loader assembly shown in FIG. 1, respectively showing different positions of the refuse handling means.
  • FIG. 6 is a fluid circuit diagram showing a fluid circuit for operation of the hydraulic cylinder assemblies in the loader shown in FIG. 1.
  • FIG. 7 and FIG. 8 respectively illustrate different modifications of the refuse loader shown in FIG. 1.
  • FIG. 1 shows a body 1 forming a storage compartment inside it, which is mounted on the frame of a refuse collector. Adjacent to the rear end opening of the storage compartment, there is settled a hollow tailgate structure 2, such that the structure 2 can be swung upwards and to the rear about a hinge member 2' at the upper rear end of the body 1 for opening the rear end of the body I.
  • the hollow tailgate structure 2 has an opening 4 at the lower rear end and a trough-shaped bottom 5, which is reinforced by appropriate stiffening members.
  • the apparatus has a sweep panel 6 which extends in a transverse direction across the tailgate structure 2.
  • the horizontal supportingshaft 12, attached to the fixed end of the panel 6 is pivotally secured at the free end of the piston rod of a first hydraulic cylinder assembly whose fixed end is pivotally supported by the body 1 at the upper rear 13 thereof.
  • a pair of rollers 14, supported on the opposite ends of the supporting shaft 12 are engaged respectively, with a pair of rail members 11 elongated downwards and to the rear along both inner side walls of the tailgate structure 2.
  • the fixed end of the sweep panel 6 can slide up and down along the rail members 11.
  • a second hydraulic cylinder assembly 8 Pivotally supported by the tailgate structure 2 at the bottom 5 of point 15 is the fixed end of a second hydraulic cylinder assembly 8, the free end of the piston rod of which is connected to the end of a pair of link members 9 and 10 at 8.
  • the cylinder assembly 8 is sup ported so that it can be swung forward and back rearwards about the point 15.
  • the other end of the link 9 is pivotally connected to the tailgate structure 2 at a point 16, while the other end of the link 10 is pivotally connected to the moving side of the sweep panel 6 at point 6'.
  • an auxiliary link member 41 which has a pivotal part 17 at its middle is pivotally interposed between the shaft 12 c'onnected to the tip of the first cylinder assembly 7 and the point 8 at the tip of the second cylinder assembly 8.
  • the auxiliary link 41 is of a length smaller than the distance between the shaft 12 in the extended-position of the first cylinder 7 and the point 8' in the extended position of the second cylinder 8.
  • Any flexible wire, chain or the like can be used as connecting means instead of the auxiliary link member 41, described above.
  • the sweep panel 6 is horizontally held at its upper position in the retracted position of the first cylinder and the protracted position of the second cylinder 8. As shown in FIG. 3, the sweep panel 6 is kept in the lower portion of the hollow chamber in the structure 2 in the protracted position of the first cylinder 7 and the retracted position of the second cylinder 8. Meanwhile the auxiliary link member 41 is kept in the shape of an inverted L, keeping the pivotal part 17 adjacent to the part 6 between the link 10 and the sweep panel 6.
  • FIG. 6 shows a fluid circuit for operation of the first and second cylinder assemblies in driving the sweep panel 6 during a predetermined cycle.
  • the front chamber 21 and back chamber 22 of the first cylinder 7 are in connected, respectively, with port 19 and 20 of a first exchange valve 18 through conduits 23 and 24.
  • the back and front chambers 34 and 35 of the second 7 cylinder 8 are connected, respectively, with port 32 and 33 of a second exchange valve 31 through conduits 36 and 37.
  • the pump port 25 of the first exchange valve 18 is connected with a pump 29 through conduit 27.
  • the tank port 26 of the first exchange valve 18 is connected with the pump port 38 of the second exchange valve 31 through conduit 28.
  • the tank port 39 of the second exchange valve 31 is connected to fluid tank 30 through conduit 40.
  • the conduit 24 has a branch conduit 42 to connect the front chamber 21 to the back chamber 22 through a one-way valve 44 in the retracted position of the first cylinder 7.
  • the conduit 23 has a branch conduit 46 to connect the back chamber 22 to the front chamber 21 through a one-way valve 48 in the protracted position of the first cylinder 7.
  • the conduit 36 has a branch conduit 43 to connect the front chamber 35 to the back chamber 34 through a one-way valve 45 in the retracted position of the second cylinder 8 extremely.
  • the conduit 37 has a branch conduit 47 to connect the back chamber 34 to the front chamber 35 in the protracted position of the second cylinder 8.
  • the sweep panel 6 supported with link 10 is driven forward along the trough formed in the bottom 5 of the tailgate structure 2, turning clockwise about the root side portion thereof to grind and transfer refuse loaded between the panel 6 and the trough in the bottom 5 and compress it toward the storage compartment in the body 1.
  • both the exchange valves 18 and 31 are turned counter clockwise for swinging the tailgate structure 2. Consequently, fluid which comes out of the pump 29 flows into the first cylinder 7 to protract the cylinder 7. Fluid exhausted out of the first cylinder 7 flows into the tank 30 through the branch conduit 47 connected to the back chamber 34 of the second cylinder assembly 8, causing both the first and second cylinders 7 and 8 to protract to swing the tailgate structure 2 and to the rear.
  • both the exchange valves 18 and 31 are also turned counter clockwise for swinging the tailgate structure. Consequently fluid which comes out of the pump 29 flows into the back chamber 22 of the first cylinder 7. Fluid exhausted out of the front chamber 21 flows into the back chamber 34 of the second cylinder 8. Thereafter, fluid exhausted out of the back chamber 22 flows into the back chamber 34 through the branch conduit 46 to protract the second cylinder 8, causing the tailgate structure 2 to swing up and to the rear.
  • a tailgate structure 102 is pivotally connected to a body 101 at a the top 102'.
  • the tailgate structure 102 has a front opening 103, rear opening 104 and a trough 105.
  • a refuse loading apparatus comprises a sweep panel 106, a first cylinder assembly 107, a second cylinder assembly 108, a link member 109 between a portion 116 on the inner wall of the structure 102 and the tip 118 of the cylinder assembly 108, a link member 110 between the middle 106' of the sweep panel 106 and the point 118', a rail member 111, and rollers 114 rotatable around a shaft 112 on the sweep panel 106.
  • FIG. 8 Shown in FIG. 8 is another modification of the loader shown in FIG. 7.
  • This loader has a body 301, tailgate structure 302, sweep panel 306, first and second cylinder assemblies 307 and 308, and a rail member 311.
  • the free end of the piston rod of the cylinder assembly 308 is connected to the sweep panel 306 through a link 310, and is restricted in motion by a curved long guide hole 317 on the wall of the tailgate structure 302.
  • the apparatus for loading refuse can be made simple in structure.
  • a refuse loader comprising, in combination, a storage compartment; a hollow tailgate structure adjacent to the rear end of said storage compartment; apparatus substantially mounted in said hollow tailgate structure for compressing and transferring refuse from an opening at the rear end portion of said tailgate structure to said storage compartment; a pair of rail members fixed to the side wall of said tailgate structure and substantially vertically elongated near the bottom of said tailgate structure; a sweep panel mounted in said tailgate structure with root end portion movable upwardly and downwardly along said rail members; a first hydraulic cylinder with free end portion pivotally connected to theroot portion of said sweep panel; a second hydraulic cylinder having one end pivotally supported by said tailgate structure at a bottom portion thereof; a first link member having one end pivotally connected to the free end portion of said second hydraulic cylinder and having the other end pivotally connected to a side wall portion of said tailgate structure; a second link member having one end pivotally connected to the tip side portion of said sweep panel and having the other end pivotally connected to the free end of said second hydraulic cylinder, the refuse
  • said sweep panel being swung about a horizontal axis thereof by means of retracting movement of said first cylinder.
  • a refuse loader according to claim 1, wherein fluid chambers of said first and second hydraulic cylinders communicate with each other throughfluid passages so that fluid exhausted out of the chamber of one of said hydraulic cylinders is supplied to the chamber of the other hydraulic cylinder through said fluid passages.
  • a refuse loader including a flexible link member connecting the free end of said first hydraulic cylinder to that of said second hydraulic cylinder, and having a length less than the distance between the free end of said first hydraulic cylinder when fully extended and the free end of said second hydraulic cylinder when fully extended.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Refuse-Collection Vehicles (AREA)
  • Refuse Collection And Transfer (AREA)
US302564A 1972-05-08 1972-10-30 Refuse loader Expired - Lifetime US3884372A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP47045199A JPS5139733B2 (enrdf_load_stackoverflow) 1972-05-08 1972-05-08

Publications (1)

Publication Number Publication Date
US3884372A true US3884372A (en) 1975-05-20

Family

ID=12712586

Family Applications (1)

Application Number Title Priority Date Filing Date
US302564A Expired - Lifetime US3884372A (en) 1972-05-08 1972-10-30 Refuse loader

Country Status (6)

Country Link
US (1) US3884372A (enrdf_load_stackoverflow)
JP (1) JPS5139733B2 (enrdf_load_stackoverflow)
DE (1) DE2254641C3 (enrdf_load_stackoverflow)
FR (1) FR2183650B1 (enrdf_load_stackoverflow)
GB (1) GB1363168A (enrdf_load_stackoverflow)
PH (1) PH12031A (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4406573A (en) * 1980-05-30 1983-09-27 Marcel Colin Device for loading and compacting rubbish in a fixed or mobile receptacle
US4522551A (en) * 1983-04-18 1985-06-11 Henneberry James W Refuse storage and discharge apparatus
US5076159A (en) * 1990-06-06 1991-12-31 Valle Teiro S.R.L. Refuse collector with pivoted member for compressing refuse
US6719349B2 (en) * 2002-03-08 2004-04-13 Caterpillar S.A.R.L. Tailgate assembly

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52112912A (en) * 1976-03-19 1977-09-21 Morita Tokushu Kiko Refuse loading apparatus for refuse collecting vehicle
JPS52112913A (en) * 1976-03-19 1977-09-21 Morita Tokushu Kiko Rear body opening apparatus for refuse collecting vehicle
JPS61136802A (ja) * 1984-12-07 1986-06-24 極東開発工業株式会社 塵芥収集車の押込機構

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2928562A (en) * 1955-11-14 1960-03-15 Leach Corp Refuse collecting and transporting equipment
US3348708A (en) * 1965-07-13 1967-10-24 Leach Corp Refuse vehicle
US3696951A (en) * 1970-07-30 1972-10-10 Dempster Brothers Inc Refuse collection vehicles
US3727779A (en) * 1971-12-06 1973-04-17 Peabody Galion Corp Rear loading refuse vehicle

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE546387A (enrdf_load_stackoverflow) * 1955-04-20
FR1262071A (fr) * 1960-04-28 1961-05-26 City Tank Corp Benne de ramassage d'ordures
US3455471A (en) * 1967-04-17 1969-07-15 Eagle Eng Co Ltd Refuse collecting vehicles
JPS5121210A (enrdf_load_stackoverflow) * 1974-08-16 1976-02-20 Hitachi Ltd

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2928562A (en) * 1955-11-14 1960-03-15 Leach Corp Refuse collecting and transporting equipment
US3348708A (en) * 1965-07-13 1967-10-24 Leach Corp Refuse vehicle
US3696951A (en) * 1970-07-30 1972-10-10 Dempster Brothers Inc Refuse collection vehicles
US3727779A (en) * 1971-12-06 1973-04-17 Peabody Galion Corp Rear loading refuse vehicle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4406573A (en) * 1980-05-30 1983-09-27 Marcel Colin Device for loading and compacting rubbish in a fixed or mobile receptacle
US4522551A (en) * 1983-04-18 1985-06-11 Henneberry James W Refuse storage and discharge apparatus
US5076159A (en) * 1990-06-06 1991-12-31 Valle Teiro S.R.L. Refuse collector with pivoted member for compressing refuse
US6719349B2 (en) * 2002-03-08 2004-04-13 Caterpillar S.A.R.L. Tailgate assembly

Also Published As

Publication number Publication date
GB1363168A (en) 1974-08-14
PH12031A (en) 1978-10-16
FR2183650B1 (enrdf_load_stackoverflow) 1978-03-10
FR2183650A1 (enrdf_load_stackoverflow) 1973-12-21
JPS5139733B2 (enrdf_load_stackoverflow) 1976-10-29
DE2254641B2 (de) 1974-08-01
DE2254641A1 (de) 1973-11-22
DE2254641C3 (de) 1975-03-13
JPS496614A (enrdf_load_stackoverflow) 1974-01-21

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