Patent US3552543A successfully refreshed from Google Patents.
US3552543A
Expired / Lapsed
US
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Accumulating lift and carry conveyor
Assignee: SIMPLEX CORP
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Filing: 1968-09-30
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Granted: 1971-01-05
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Expires: 1988-09-30
Abstract
Abstract A conveyor for transferring articles from station to station in an operation which includes lifting the article, transporting it to the new station, and lowering the article into position. Means are provided to sense the presence or absence of an article at every station and to provide for advance of articles from every station in rear of the most advanced empty station.
Inventors
- 👤 Peter J Manetta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:56
CPC Classifications
B; B23; B23Q; B23Q7/00; B23Q7/003; B65; B65G; B65G25/00; B65G25/02
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
299 words
An accumulating conveyor comprising an elOngated frame having a multiplicity of equally spaced work support stations, a slide movable longitudinally of said frame, means for reciprocating said slide in back and forth strokes having an amplitude exceeding the spacing between stations, means for elevating and lowering said slide, a plurality of individually movable carriers on said slide, abutment means acting between each pair of adjacent carriers operable on movement of any one of said carriers from an idle to a feed position to move all carriers to the rear of said one carrier to feed position, a control arm carried by said frame at each station having a cam normally in operative position but movable by a workpiece at such station to inoperative position, an element connected to each carrier engageable with the associated control arm cam when the control arm is in operative position to shift the associated carrier to feed position beneath its associated station during initial movement of said slide in feed direction from a starting position to an intermediate position in which the carriers in feed position are directly beneath workpieces at the associated stations, means for actuating said slide elevating and lowering means to elevate said slide and carriers at said intermediate positions to cause said carriers to lift the workpieces at the associated stations, means for thereafter actuating said slidereciprocating means to continue advance of said slide to advance the workpieces lifted by said carriers to the next station, means for thereafter actuating said slide elevating and lowering means to lower said slide to deposit workpieces at said next station, means for thereafter actuating said slide-reciprocating means to return said slide to initial position, and means engageable with said carriers to return said carriers to idle position during return movement of said slide.
Claim 2
Dependent Claim
299 words
An accumulating conveyor comprising an elOngated frame having a multiplicity of equally spaced work support stations, a slide movable longitudinally of said frame, means for reciprocating said slide in back and forth strokes having an amplitude exceeding the spacing between stations, means for elevating and lowering said slide, a plurality of individually movable carriers on said slide, abutment means acting between each pair of adjacent carriers operable on movement of any one of said carriers from an idle to a feed position to move all carriers to the rear of said one carrier to feed position, a control arm carried by said frame at each station having a cam normally in operative position but movable by a workpiece at such station to inoperative position, an element connected to each carrier engageable with the associated control arm cam when the control arm is in operative position to shift the associated carrier to feed position beneath its associated station during initial movement of said slide in feed direction from a starting position to an intermediate position in which the carriers in feed position are directly beneath workpieces at the associated stations, means for actuating said slide elevating and lowering means to elevate said slide and carriers at said intermediate positions to cause said carriers to lift the workpieces at the associated stations, means for thereafter actuating said slidereciprocating means to continue advance of said slide to advance the workpieces lifted by said carriers to the next station, means for thereafter actuating said slide elevating and lowering means to lower said slide to deposit workpieces at said next station, means for thereafter actuating said slide-reciprocating means to return said slide to initial position, and means engageable with said carriers to return said carriers to idle position during return movement of said slide.
Claim 3
Dependent Claim
61 words
An accumulating conveyor as defined in claim 1 in which said carriers each comprises an elongated member having a length equal to the spacing between stations, and which includes parallel links pivotally supporting said members on said slide, one of said links having an arm movable to upwardly extending feed position and having a work support configuration at its upper end.
Claim 4
Dependent Claim
41 words
An accumulating conveyor as defined in claim 2 in which said links are movable through an arc of approximately 90* through an upwardly extending vertical position upon forward movement of said slide-following engagement between the elements associated therewith and said cams.
Claim 5
Dependent Claim
38 words
An accumulating conveyor as defined in claim 3 in which said means for returning said carriers to idle position comprise movable cams, and abutment means holding said movable cams in operative positions during return movement of said slide.
Claim 6
Dependent Claim
27 words
An accumulating conveyor as defined in claim 4, said movable cams comprising pivoted arms movable by said carriers to inoperative position on forward movement of said slide.
Claim 7
Dependent Claim
38 words
An accumulating conveyor as defined in claim 4 in which said carriers move overcenter during movement between idle and feed position, and means to control movement of one portion thereof in timed relation to movement of said slide.
Claim 8
Dependent Claim
45 words
An accumulating conveyor as defined in claim 1 comprising abutment means acting between said slide and said frame to terminate advance of said slide with said carriers directly beneath associated stations, said last mentioned abutment means being shaped to disengage upon elevation of said slide.
Claim 9
Dependent Claim
41 words
An accumulating conveyor as defined in claim 7 in which said elements engageable with said control arm cams are movable upwardly by upward movement of said slide to positions above said cams to provide for further forward movement of said slide.
Claim 10
Dependent Claim
135 words
A lift and carry conveyor comprising an elongated stationary frame providing a series of equally spaced article-supporting stations, a slide movable longitudinally of said frame, mechanical article-sensing devices on said frame at each station, individually movable article carRiers on said slide movable between idle and feed positions, one-way positive acting mechanical means acting between each pair of adjacent carriers operable when any one carrier is shifted to feed position to move all carriers to the rear of said one carrier to feed position, an element on each carrier engageable with the article-sensing device at the empty station to which said carrier can deliver an article and operable through said positive acting means to move said carrier to feed position and to move all carriers to the rear of the said carrier moved to feed position.
Claim 11
Dependent Claim
135 words
A lift and carry conveyor comprising an elongated stationary frame providing a series of equally spaced article-supporting stations, a slide movable longitudinally of said frame, mechanical article-sensing devices on said frame at each station, individually movable article carRiers on said slide movable between idle and feed positions, one-way positive acting mechanical means acting between each pair of adjacent carriers operable when any one carrier is shifted to feed position to move all carriers to the rear of said one carrier to feed position, an element on each carrier engageable with the article-sensing device at the empty station to which said carrier can deliver an article and operable through said positive acting means to move said carrier to feed position and to move all carriers to the rear of the said carrier moved to feed position.
Claim 12
Dependent Claim
63 words
A conveyor as defined in claim 9, comprising means for sequentially elevating said slide and carriers while said carriers remain at associated stations to elevate articles from support stations, advancing said slide to move articles forwardly to the next succeeding station, lowering said slide and carriers to deposit articles on the next succeeding station, and returning said slide and carriers to initial position.
Claim 13
Dependent Claim
29 words
Mechanism as defined in claim 10, which comprises rigid abutment means operable on return movement of said slide engageable with said carriers to shift said carriers to idle position.
Claim 14
Dependent Claim
27 words
Mechanism as defined in claim 11, said abutment means comprising guide means to control return movement of said carriers in timed relation to movement of said slide.
Claim 15
Dependent Claim
295 words
An accumulating conveyor comprising an elongated frame having a multiplicity of equally spaced support stations, a slide movable longitudinally of said frame, means for reciprocating said slide in forward feeding and reverse strokes having an amplitude at least as great as the spacing between said stations, means for elevating and lowering said slide, a plurality of carriers on said slide, each of said carriers being independently movable on said slide between idle and feed positions, abutment means acting between each pair of adjacent carriers operable on movement of any one of said carriers from an idle to a feed position to move all carriers to the rear of said one carrier to feed position, a control arm carried by said frame at each station having a cam normally in operative position but movable by a workpiece at such station to inoperative position, an element connected to each carrier engageable with the associated control arm cam when the control arm is in operative position to shift the associated carrier to feed position beneath its associated station during and as a consequence of movement of said slide, means for actuating said slide-elevating and lowering means to elevate said slide and carriers to cause the carriers in feed position to lift the workpieces at the associated stations, means for thereafter actuating said slide-reciprocating means to advance the slide to advance the workpieces lifted by said carriers to the next station, means for thereafter actuating said slide-elevating and lowering means to lower said slide to deposit workpieces at said next station, and means for thereafter actuating said slide-reciprocating means to return said slide to initial position, said carriers having means connected thereto effective to return all carriers in feed position to idle position during reverse reciprocation of said slide.
Claim 16
Dependent Claim
295 words
An accumulating conveyor comprising an elongated frame having a multiplicity of equally spaced support stations, a slide movable longitudinally of said frame, means for reciprocating said slide in forward feeding and reverse strokes having an amplitude at least as great as the spacing between said stations, means for elevating and lowering said slide, a plurality of carriers on said slide, each of said carriers being independently movable on said slide between idle and feed positions, abutment means acting between each pair of adjacent carriers operable on movement of any one of said carriers from an idle to a feed position to move all carriers to the rear of said one carrier to feed position, a control arm carried by said frame at each station having a cam normally in operative position but movable by a workpiece at such station to inoperative position, an element connected to each carrier engageable with the associated control arm cam when the control arm is in operative position to shift the associated carrier to feed position beneath its associated station during and as a consequence of movement of said slide, means for actuating said slide-elevating and lowering means to elevate said slide and carriers to cause the carriers in feed position to lift the workpieces at the associated stations, means for thereafter actuating said slide-reciprocating means to advance the slide to advance the workpieces lifted by said carriers to the next station, means for thereafter actuating said slide-elevating and lowering means to lower said slide to deposit workpieces at said next station, and means for thereafter actuating said slide-reciprocating means to return said slide to initial position, said carriers having means connected thereto effective to return all carriers in feed position to idle position during reverse reciprocation of said slide.
References Cited (Backward Citations)
US3369650A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |