Patent US4044901A successfully refreshed from Google Patents.
US4044901A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Goods discharging apparatus
Assignee: Rengo Co Ltd
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Filing: 1975-04-30
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Granted: 1977-08-30
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Expires: 1995-04-30
Abstract
Abstract The present invention relates to an apparatus for discharging goods such as stacked-up boards of corrugated board, cardboard, pasteboard or plywood, or pallets loaded with such goods, from a conveyor means such that said goods or pallet may be immediately transferred onto a pallet or a transporter such as a forklift which is waiting at a location close to the discharge end of said conveyor means. The discharging apparatus essentially comprises a platform which is movable up and down, means for lifting said movable platform up and down, a goods support secured to said movable platform such that said support can extend out from said platform, means mounted on said movable platform for moving said goods support forward or backward, and a conveyor means arranged such that said goods support can be raised up from the goods carrying surface of the conveyor means with an upward or downward movement of said movable platform and that said goods support can also extend out from said conveyor means at the same time as it extends out from said movable platform.
Inventors
- 👤 Masateru Tokuno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:20
CPC Classifications
B; B65; B65H; B65H31/00; B65H31/30; B65H31/3054; B65G; B65G13/00; B65G47/00; B65G47/34; B65G69/00; B65H31/3063; B65H2701/00; B65H2701/10; B65H2701/17; B65H2701/176; B65H2701/1762
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
334 words
A goods discharging apparatus comprising a vertically movable platform, means for lifting said movable platform up and down, including a pair of shafts arranged substantially parallel to each other and rotatably supported by bearings disposed in a base frame, two pairs of arms each of which is secured at its middle portion to each end of each of said shafts, with the upper ends of said respective arms being pivotally secured to said movable platform, two piston-cylinder means, each having its cylinder tube pivotally secured to said base frame, with the piston rod of each of said piston-cylinder means being pivotally secured to the lower end of the corresponding one of said arms which are in turn secured to the corresponding ends of said shafts, and a connecting rod pivotally secured at both of its ends to the lower ends of said respective arms which are secured to the other ends of said shafts, a goods support means mounted on said movable platform, said goods support means extending from the movable platform, means mounted on said movable platform for moving said goods support means in the forward and backward directions, conveyor means having a goods conveying surface, said conveyor means being arranged such that said goods support means can be raised up from the goods carrying surface of said conveyor means with the vertical movement of said movable platform, said goods support means also projecting out from the conveyor means at the same time as it projects out from said movable platform, a checking means disposed at the discharge end of said conveyor means so as not to impede the forward or backward movement of said goods support means, said checking means being provided with a pawl portion which is positioned lower than the upper surface of the goods support means when the goods support means is disposed in its raised position and higher than the upper surface of said goods support means when said goods support means is disposed in its lowered position.
Claim 2
Dependent Claim
334 words
A goods discharging apparatus comprising a vertically movable platform, means for lifting said movable platform up and down, including a pair of shafts arranged substantially parallel to each other and rotatably supported by bearings disposed in a base frame, two pairs of arms each of which is secured at its middle portion to each end of each of said shafts, with the upper ends of said respective arms being pivotally secured to said movable platform, two piston-cylinder means, each having its cylinder tube pivotally secured to said base frame, with the piston rod of each of said piston-cylinder means being pivotally secured to the lower end of the corresponding one of said arms which are in turn secured to the corresponding ends of said shafts, and a connecting rod pivotally secured at both of its ends to the lower ends of said respective arms which are secured to the other ends of said shafts, a goods support means mounted on said movable platform, said goods support means extending from the movable platform, means mounted on said movable platform for moving said goods support means in the forward and backward directions, conveyor means having a goods conveying surface, said conveyor means being arranged such that said goods support means can be raised up from the goods carrying surface of said conveyor means with the vertical movement of said movable platform, said goods support means also projecting out from the conveyor means at the same time as it projects out from said movable platform, a checking means disposed at the discharge end of said conveyor means so as not to impede the forward or backward movement of said goods support means, said checking means being provided with a pawl portion which is positioned lower than the upper surface of the goods support means when the goods support means is disposed in its raised position and higher than the upper surface of said goods support means when said goods support means is disposed in its lowered position.
Claim 3
Dependent Claim
47 words
The apparatus as set forth in claim 1 wherein said means for moving said goods support means in the forward or backward directions comprises a piston-cylinder means having its piston rod connected to said goods support means and having its cylinder tube fixed to said movable platform.
Claim 4
Dependent Claim
169 words
A goods discharging apparatus comprising a vertically movable platform, means for lifting said movable platform up and down, goods support means mounted on said movable platform, said goods support means extending from the movable platform, means mounted on said movable platform for moving said goods support means in the forward and backward directions, conveyor means having a goods carrying surface, said conveyor means being arranged such that said goods support means can be raised up from the goods carrying surface of said conveyor means with the vertical movement of said movable platform, said goods support means also projecting out from the conveyor means at the same time as it projects out from said movable platform, and control means adapted for controlling the operation of said means for lifting the movable platform and said means for moving said goods support means such that one or more lots of goods can be discharged simultaneously depending on the length of one lot of goods in the advancing direction of the conveyor means.
Claim 5
Dependent Claim
169 words
A goods discharging apparatus comprising a vertically movable platform, means for lifting said movable platform up and down, goods support means mounted on said movable platform, said goods support means extending from the movable platform, means mounted on said movable platform for moving said goods support means in the forward and backward directions, conveyor means having a goods carrying surface, said conveyor means being arranged such that said goods support means can be raised up from the goods carrying surface of said conveyor means with the vertical movement of said movable platform, said goods support means also projecting out from the conveyor means at the same time as it projects out from said movable platform, and control means adapted for controlling the operation of said means for lifting the movable platform and said means for moving said goods support means such that one or more lots of goods can be discharged simultaneously depending on the length of one lot of goods in the advancing direction of the conveyor means.
Claim 6
Dependent Claim
58 words
The goods discharging apparatus of claim 3 wherein said conveyor means comprises an assembly of belt conveyors and an assembly of roller conveyors extending from the discharge end of said belt conveyor assembly such that the goods support means extends from the discharge end of said belt conveyor assembly toward the discharge end of said roller conveyor assembly.
Claim 7
Dependent Claim
94 words
The goods discharging apparatus defined in claim 3, further including a checking means disposed at the discharge end of said conveyor means so as not to impede the forward or backward movement of said goods support means, said checking means being provided with a pawl portion, said pawl portion being positioned lower than the upper surface of the goods support means when the goods support means is in its raised position and higher than the upper surface of said goods support means when said goods support means is disposed in its said lower position.
Claim 8
Dependent Claim
155 words
The apparatus as set forth in claim 3, wherein said means for lifting said movable platform up and down comprises a pair of shafts arranged substantially parallel to each other and rotatably supported by bearings disposed in a base frame, two pairs of arms each of which is secured at its middle portion to each end of each of said shafts, with the upper ends of said respective arms being pivotally secured to said movable platform, two piston-cylinder means, each having its cylinder tube pivotally secured to said base frame, with the piston rod of each of said piston-cylinder means being pivotally secured to the lower end of the corresponding one of said arms which are in turn secured to the corresponding end of said shaft, and a connecting rod pivotally secured at both of its ends to the lower ends of said respective arms which are secured to the other ends of said shaft.
Claim 9
Dependent Claim
47 words
The apparatus as set forth in claim 3 wherein said means for moving said goods support means in the forward or backward direction comprises a piston-cylinder means having a piston rod connected to said goods support means and having its cylinder tube fixed to said movable platform.
Claim 10
Dependent Claim
300 words
A goods discharging apparatus comprising a vertically movable platform, means for lifting said movable platform up and down, a goods support means mounted on said movable platform, said goods support means extending from the movable platform, means mounted on said movable platform for moving said goods support means in the forward and backward directions, conveyor means having a goods conveying surface, and comprising an assembly of belt conveyors and an assembly of roller conveyors extending from the discharge end of said belt conveyor assembly such that said goods support means extends out from said discharge end of said belt conveyor assembly toward the discharge end of said roller conveyor assembly, said conveyor means being arranged such that said goods support means can be raised up from the goods carrying surface of said conveyor means with the vertical movement of said movable platform, said goods support means also projecting out from the conveyor means at the same time as it projects from said movable plaftorm, a checking means disposed at the discharge end of said conveyor means so as not to impede the forward or backward movement of said goods support means said checking means being provided with a pawl portion which is positioned lower than the upper surface of the goods support means when the goods support means is disposed in its raised position and higher than the upper surface of said goods support means when said goods support means is disposed in its lowered position, and control means adapted for controlling the operation of said means for lifting said movable platform and said means for moving said goods support means such that one or more lots of goods can be discharged simultaneously depending on the length of one lot of goods in the advancing direction on the conveyor means.
Claim 11
Dependent Claim
300 words
A goods discharging apparatus comprising a vertically movable platform, means for lifting said movable platform up and down, a goods support means mounted on said movable platform, said goods support means extending from the movable platform, means mounted on said movable platform for moving said goods support means in the forward and backward directions, conveyor means having a goods conveying surface, and comprising an assembly of belt conveyors and an assembly of roller conveyors extending from the discharge end of said belt conveyor assembly such that said goods support means extends out from said discharge end of said belt conveyor assembly toward the discharge end of said roller conveyor assembly, said conveyor means being arranged such that said goods support means can be raised up from the goods carrying surface of said conveyor means with the vertical movement of said movable platform, said goods support means also projecting out from the conveyor means at the same time as it projects from said movable plaftorm, a checking means disposed at the discharge end of said conveyor means so as not to impede the forward or backward movement of said goods support means said checking means being provided with a pawl portion which is positioned lower than the upper surface of the goods support means when the goods support means is disposed in its raised position and higher than the upper surface of said goods support means when said goods support means is disposed in its lowered position, and control means adapted for controlling the operation of said means for lifting said movable platform and said means for moving said goods support means such that one or more lots of goods can be discharged simultaneously depending on the length of one lot of goods in the advancing direction on the conveyor means.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-08-29 | 1981-02-28 | 1981-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-29 | 1985-02-28 | 1985-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-29 | 1989-02-28 | 1989-08-30 | $7700.00 | Window Closed / Lapsed |