US3881613A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refuse collection vehicle
Assignee: Kyokuto Kaihatsu Kogyo Co Ltd
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Filing: 1974-02-12
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Granted: 1975-05-06
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Expires: 1994-02-12
Abstract
Abstract A refuse collection vehicle of a rear loading type which comprises a dumper frame mounted on the rear of a vehicle chassis a container interchangeably mounted on the dumper frame and having a refuse receiving opening at the rear, a tailgate loading hopper supported at the rear of the container for pivotal movement between raised and lowered positions and formed with a discharge opening and a rear opening substantially opposed to the discharge opening, and a packer plate assembly housed in the tailgate loading hopper for compressing and transferring refuse dumped into the rear opening.
Inventors
- 👤 Hideo Torimoto
- 👤 Yoshimitsu Shibayama
- 👤 Takashi Nakano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:04
CPC Classifications
B; B65; B65F; B65F3/00; B65F3/14; B65F3/143; B65F3/20; B65F3/207; B65F2003/006; B65F2003/008
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
327 words
A refuse collection vehicle of a rear loading type which generally comprises a dumper frame mounted on the rear of a vehicle chassis, a container of a box shape for packing refuse therein to be interchangeably mounted on said dumper frame and having a refuse receiving opening at the rear thereof, means for locking said container on said dumper frame, a small door provided on said refuse receiving opening for selectively opening or closing the latter and having a sufficient size to cover said refuse receiving opening, means for driving said small door between opened and closed positions, a tailgate loading hopper of a box shape formed with a discharge opening of a corresponding size to said refuse receiving opening and a rear opening opposed to said discharge opening, and supported at the rear of said container for pivotal movement, means for swinging said tailgate loading hopper between raised and lowered positions, said swinging means for said tailgate loading hopper in turn actuating said driving means for said small door which is provided between the rear of said container and the front of said tailgate loading hopper so that said small door is closed when said tailgate loadIng hopper is in said raised position and the former is opened when the latter is in said lowered position, said discharge opening being adapted to face said refuse receiving opening so as to bring the former in communication with the latter when said tailgate loading hopper is in said lowered position, a packer plate housed in said tailgate loading hopper for forcing refuse dumped in said rear opening into said container through said discharge opening, and means for driving said packer plate for pushing said refuse between a rear position close to said rear opening and a foremost position sufficiently deep in said container through said discharge opening when said refuse receiving opening is in communication with said discharge opening in said lowered position of said tailgate loading hopper.
Claim 2
Dependent Claim
327 words
A refuse collection vehicle of a rear loading type which generally comprises a dumper frame mounted on the rear of a vehicle chassis, a container of a box shape for packing refuse therein to be interchangeably mounted on said dumper frame and having a refuse receiving opening at the rear thereof, means for locking said container on said dumper frame, a small door provided on said refuse receiving opening for selectively opening or closing the latter and having a sufficient size to cover said refuse receiving opening, means for driving said small door between opened and closed positions, a tailgate loading hopper of a box shape formed with a discharge opening of a corresponding size to said refuse receiving opening and a rear opening opposed to said discharge opening, and supported at the rear of said container for pivotal movement, means for swinging said tailgate loading hopper between raised and lowered positions, said swinging means for said tailgate loading hopper in turn actuating said driving means for said small door which is provided between the rear of said container and the front of said tailgate loading hopper so that said small door is closed when said tailgate loadIng hopper is in said raised position and the former is opened when the latter is in said lowered position, said discharge opening being adapted to face said refuse receiving opening so as to bring the former in communication with the latter when said tailgate loading hopper is in said lowered position, a packer plate housed in said tailgate loading hopper for forcing refuse dumped in said rear opening into said container through said discharge opening, and means for driving said packer plate for pushing said refuse between a rear position close to said rear opening and a foremost position sufficiently deep in said container through said discharge opening when said refuse receiving opening is in communication with said discharge opening in said lowered position of said tailgate loading hopper.
Claim 3
Dependent Claim
62 words
A refuse collection vehicle of a rear loading type as claimed in claim 1, wherein said tailgate loading hopper has a separate discharge mouth secured to said discharge opening and extending outwardly from said discharge opening, said discharge mouth being engageable into said container through said refuse receiving opening of said container when said tailgate loading hopper is in said lowered position.
Claim 4
Dependent Claim
59 words
A refuse collection vehicle of a rear loading type as claimed in claim 2, wherein said refuse receiving opening of said container is provided with a resilient plate around the edge thereof so as to selectively open or close said refuse receiving opening according to insertion or withdrawal of said discharge mouth into or from said refuse receiving opening.
Claim 5
Dependent Claim
36 words
A refuse collection vehicle of a rear loading type as claimed in claim 2, wherein said tailgate loading hopper has a discharge mouth integrally formed with said tailgate hopper and extending outwardly from said discharge opening.
Claim 6
Dependent Claim
75 words
A refuse collection vehicle of a rear loading type as claimed in claim 1, wherein said container comprises a part of side walls, a bottom, a ceiling wall and front and rear walls, all assembled into a box like shape, said rear wall being hinged to provide a large opening for removal of refuse within said container to the outside thereof, said refuse receiving opening being formed at the lower part of said rear wall.
Claim 7
Dependent Claim
71 words
A refuse collection vehicle of a rear loading type as claimed in claim 5, wherein said container has a rectangular hole formed at the under face of each corner thereof so as to receive a corresponding rectangular metal piece rotatably provided on said dumper frame, said locking means being adapted to fasten or release said container to or from said dumper frame when said container is mounted on said dumper frame.
Claim 8
Dependent Claim
84 words
A refuse collection vehicle of a rear loading type as claimed in claim 1, wherein said small door is adapted to be slidably raised over said refuse receiving opening along grooves provided at opposite sides of said small door so as to open said refuse receiving opening when said tailgate loading hopper is in said lowered position and to be slidably lowered by its own weight so as to close said refuse receiving opening when said tailgate loading hopper is in said raised position.
Claim 9
Dependent Claim
67 words
A refuse collection vehicle of a rear loading type as claimed in claim 1, wherein said tailgate loading hopper is adapted to be locked in said lowered position by means of a hook fixed at the lower edge thereof and a hydraulic ram pivotally connected to the rear of said vehicle chassis, said hook being adapted to releasably engage a piston rod end of said hydraulic ram.
Claim 10
Dependent Claim
111 words
A refuse collection vehicle of a rear loading type as claimed in claim 1, wherein said driving means for said small door comprises link means and hydraulic power means, said swinging means for said tailgate loading hopper comprises hydraulic power means, and said driving means for said packer plate comprises bearing means and first and second hydraulic power means, each of said hydraulic power means being controlled by a control means so that when said tailgate loading hopper is lowered, said small dooR is opened with said packer plate movable between said rear position and said foremost position, and when said tailgate loading hopper is raised, said small door is closed.
Claim 11
Dependent Claim
53 words
A refuse collection vehicle of a rear loading type as claimed in claim 1, wherein said tailgate loading hopper comprises a pair of side walls, a ceiling plate and a bottom plate which define said discharge opening at the front of said tailgate loading hopper and said rear opening at the rear thereof.
Claim 12
Dependent Claim
48 words
A refuse collection vehicle of a rear loading type as claimed in claim 1, wherein said packer plate extends across the width of said discharge opening with height corresponding to the height of said discharge opening so as to force refuse through said discharge opening into said container.
Claim 13
Dependent Claim
100 words
A refuse collection vehicle of a rear loading type as claimed in claim 1, wherein said means for driving said packer plate comprises first and second hydraulic power means including arm plates and guide means for said arm plates, said first hydraulic means being adapted to swing said packer plate about pivot axes between raised and lowered positions, said second hydraulic means being adapted to drive said packer plate through said arm plates between said rear position and said foremost position sufficiently deep in said container through said discharge opening when said tailgate loading hopper is in said lowered position.
Claim 14
Dependent Claim
90 words
A refuse collection vehicle of a rear loading type as claimed in claim 12, wherein said guide means comprises upper guide slots and middle guide slots formed in side walls of said tailgate loading hopper, each of said upper guide slots extending from the rear to the front at the upper part of said side wall while each of said middle guide slots comprises a curved portion rising upwardly and forwardly and a straight portion extending from the rear to the front at the middle part of said side wall.
Claim 15
Dependent Claim
55 words
A refuse collection vehicle of a rear loading type as claimed in claim 1, wherein said tailgate loading hopper extending the width of said container is pivotally supported by pivot axes adjacent upper ends of supports formed by upright portions of said dumper frame extending at right angles at the rear of said dumper frame.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-05-05 | 1978-11-04 | 1979-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-05 | 1982-11-04 | 1983-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-05 | 1986-11-04 | 1987-05-06 | $7700.00 | Window Closed / Lapsed |