US3776393A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transfer apparatus
Assignee: Individual
•
Filing: 1972-05-19
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Granted: 1973-12-04
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Expires: 1992-05-19
Abstract
Abstract The apparatus serves to transfer items between two stations. A frame is disposed between said two stations and at its top carries a first pivot. A first rocker lever assembly is pivoted on the first pivot and has a longer portion on one side of the first pivot. A second pivot is carried by the first rocker lever assembly and parallel to and spaced from the first pivot. A second rocker lever assembly is mounted on the second pivot and rotatable in unison with the first rocker lever assembly during a movement of the latter. Connecting drive means connect the first and second rocker lever assemblies and are arranged to impart to the second rocker lever assembly a movement in dependence on the movement of the first rocker lever assembly. Holding means for holding items are carried by the first and second rocker lever assemblies at those ends thereof which are most remote from the associated first and second pivots. The first and second rocker lever assemblies are pivotally movable over head and have different lengths between the associated first and second pivots and the ends provided with the holding means. Said lengths are selected so that the holding means are equally spaced from the first pivot means when the first and second rocker lever assemblies are angularly spaced 180* apart.
Inventors
- 👤 G Bargstedt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:19
CPC Classifications
B; B65; B65H; B65H29/00; B65H29/50; B65G; B65G61/00; B65H29/24; B65H29/241; B65H3/00; B65H3/08; B65H3/0808; B65H3/0816
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
285 words
A transfer apparatus for transferring items between two stations, which comprises a frame (5, 25, 26) disposed between said two stations, a first pivot (6) carried by the frame at its top, a first rocker lever assembly (9, 51, 52), which is pivoted on the first pivot and has a longer portion on one side of the first pivot, a second pivot (13, 59), which is carried by the first rocker lever assembly and parallel to and spaced from the first pivot, a second rocker lever assembly (14, 60, 61), which is mounted on the second pivot, which is rotatable in unison with the first rocker lever assembly (9, 51, 52) during a movement of the latter, connecting drive means (58, 63) which connect the first and second rocker lever assemblies and are arranged to impart to the second rocker lever assembly a movement in dependence on the movement of the first rocker lever assembly, and holding means for holding items, which holding means are carried by the first and second rocker lever assemblies at those ends thereof which are most remote from the associated first and second pivots, the first and second rocker lever assemblies (9, 14; 51; 52; 60, 61) being pivotally movable over head and having different lengths between the associated first and second pivots and the ends provided with the holding means, said lengths being selected so that the holding means (10, 15, 64, 65) are equally spaced from the first pivot (6, 43, 44) when the first and second rocker lever assemblies (9, 14; 51, 52; 60, 61) are angularly spaced 180* apart; and drive means for pivotally oscillating the first rocker lever assembly (9, 51, 152) through substantially 180*.
Claim 2
Dependent Claim
285 words
A transfer apparatus for transferring items between two stations, which comprises a frame (5, 25, 26) disposed between said two stations, a first pivot (6) carried by the frame at its top, a first rocker lever assembly (9, 51, 52), which is pivoted on the first pivot and has a longer portion on one side of the first pivot, a second pivot (13, 59), which is carried by the first rocker lever assembly and parallel to and spaced from the first pivot, a second rocker lever assembly (14, 60, 61), which is mounted on the second pivot, which is rotatable in unison with the first rocker lever assembly (9, 51, 52) during a movement of the latter, connecting drive means (58, 63) which connect the first and second rocker lever assemblies and are arranged to impart to the second rocker lever assembly a movement in dependence on the movement of the first rocker lever assembly, and holding means for holding items, which holding means are carried by the first and second rocker lever assemblies at those ends thereof which are most remote from the associated first and second pivots, the first and second rocker lever assemblies (9, 14; 51; 52; 60, 61) being pivotally movable over head and having different lengths between the associated first and second pivots and the ends provided with the holding means, said lengths being selected so that the holding means (10, 15, 64, 65) are equally spaced from the first pivot (6, 43, 44) when the first and second rocker lever assemblies (9, 14; 51, 52; 60, 61) are angularly spaced 180* apart; and drive means for pivotally oscillating the first rocker lever assembly (9, 51, 152) through substantially 180*.
Claim 3
Dependent Claim
75 words
An apparatus as set forth in claim 1, in which the first rocker lever assembly (9, 51, 52) has a shorter portion which extends from the longer portion beyond the first pivot (6, 43, 44), said shorter portion carries the second pivot (13, 59) for the second rocker lever assembly (14, 60, 61), and the second rocker lever assembly (14, 60, 61) provides for a counterbalancing of the first rocker lever assembly (9, 51, 52).
Claim 4
Dependent Claim
96 words
An apparatus as set forth in claim 1, in which the driving means comprise a crank mechanism (20, 21, 55, 56), which drives a rack (55), a bearing bushing (53) of the first rocker lever assembly is non-rotatably connected to a gear (54) in mesh with said rack (55) in such a manner that the holding means consisting of lifting beams (10, 15, 64, 65) are disposed over associated delivering and receiving means (2, 3, 23, 24) at the stations when the crank arm (21, 56) is aligned with the rack (20, 55) driven by it.
Claim 5
Dependent Claim
176 words
An apparatus as set forth in claim 1, in which the holding means consist of lifting beams and are rotatably mounted in the rocker lever assemblies and operatively connected to drive means, which comprise drive chains, said drive means maintain the absolute orientation of the holding means during a movement of the rocker lever assemblies and comprise for each drive chain a first chain sprocket secured to a holding means and also comprise second chain sprockets (68, 71), which are mounted on the pivot pins (44, 59) of the respective rocker lever assemblies, one second chain sprocket (68) for the first rocker lever assembly (51, 52) is non-rotatably secured to the pivot pin (44) of the first pivot, which is carried by the frame, the other second chain sprocket (71) is rotatably mounted on the second pivot pin (59) of the second pivot for the second rocker lever assembly (60, 61), and drive means are connected between the other second chain sprocket (71) and a chain sprocket (73) non-rotatably mounted on the first pivot pin (44).
Claim 6
Dependent Claim
42 words
An apparatus as set forth in claim 1, in which the second rocker lever assembly comprises rocker levers, which have an extension, which extends beyond the second pivot from the portion provided with the holding means and which carries a counterweight (85).
Claim 7
Dependent Claim
60 words
An apparatus as set forth in claim 1, in which a vertical track is provided in the frame (25, 26), a carriage (41, 42) is vertically movable in said track, and carries the first pivot (43, 44) for the first rocker lever assembly (51, 52), and drive means (48, 49, 50) are provided for vertically moving the carriage (41, 42).
Claim 8
Dependent Claim
98 words
An apparatus according to claim 3, in which the crank mechanism comprises a drive crank (56), a drive motor (57) is connected to a drive shaft (78) for the drive crank, the drive crank (56) and the drive motor (57) are carried by a boom (76), which is pivoted on a pivot pin (43) of the first pivot for the first rocker lever assembly (51, 52), and the pivotal movement and adjustment of the boom (76) relative to the first pivot (43, 44) determines the direction of the two rocker lever assemblies (51, 52; 60, 61) when aligned.
Claim 9
Dependent Claim
75 words
An apparatus as set forTh in claim 7, in which a drive chain sprocket is mounted on the pivot pin (43) of the first pivot and rotatable in unison with the boom (76), another drive chain sprocket (63) is mounted on the pivot pin (59) of the second pivot for the second rocker lever assembly and non-rotatably connected to the latter, and a drive chain is trained around the two drive chain sprockets (58, 63).
Claim 10
Dependent Claim
82 words
An apparatus as set forth in claim 7, in which a link (82) is pivoted at one end to first bearing means (83) at one of the stations adapted to support items, the other end of the link (82) is pivoted by second bearing means (81) to the free end of the boom (76), and the direction of the boom (76) varies in dependence on the vertical movement of the carriage (41, 42) as the height of a stack (23) is changed.
References Cited (Backward Citations)
DE931460C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-03 | 1977-06-04 | 1977-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-03 | 1981-06-04 | 1981-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-03 | 1985-06-04 | 1985-12-04 | $7700.00 | Window Closed / Lapsed |