Patent US4587219A successfully refreshed from Google Patents.
Patent US3703282A successfully refreshed from Google Patents.
US3703282A
Expired / Lapsed
US
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Planetary sheet slowdown and laydown mechanism
Assignee: Western Printing Machinery Co
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Filing: 1971-03-26
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Granted: 1972-11-21
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Expires: 1991-03-26
Abstract
Abstract A sheet slowdown and stacking mechanism having horizontal grippers for engaging the tail edge of a sheet moving at high speed over a sheet stack followed by release of the leading edge of the sheet from a conveying transport gripper bar, the tail edge of said sheet being carried forward and downward on a curvilinear path engaged by the horizontal grippers which are gyrating about the axis of a rotating reel, said grippers decelerating the forward motion of the sheet substantially to zero at the point of release over the sheet stack for laying down the sheet on the stack pile.
Inventors
- 👤 Allmen P Henkel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:59
CPC Classifications
B; B65; B65H; B65H29/00; B65H29/02; B65H29/06; B65H29/20; B65H29/26; B65H29/28; B65H2701/00; B65H2701/10; B65H2701/17; B65H2701/176; B65H2701/1762
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
178 words
A mechanism for the horizontal slowdown and laydown deceleratingly along a forwardly and downwardly curvilinear path of a sheet delivered from a rotary printing, die cutting or other high speed converting means, having a frame, a sheet delivery transport gripper means mounted for movement on said frame, and a drive shaft horizontally journaled therein, comprising: a. a pair of laterally spaced end support arms mounted on said drive shaft for rotation about its axis, b. a planetary gear means mounted on each of said support arms, c. a sheet tail end gripper means mounted on and extending between said planetary gear means for opera-tion thereby to pick up the tail edge of said sheet, maintain it horizontal in its forward and downward movement along said curvilinear path, and release it at the extent of its forward travel, and d. a cam means for closing and opening said tail end gripper means, in the pickup and release of said trailing edge of said sheet, in the proper time sequence with the delivery of the sheet from said converting means.
Claim 2
Dependent Claim
178 words
A mechanism for the horizontal slowdown and laydown deceleratingly along a forwardly and downwardly curvilinear path of a sheet delivered from a rotary printing, die cutting or other high speed converting means, having a frame, a sheet delivery transport gripper means mounted for movement on said frame, and a drive shaft horizontally journaled therein, comprising: a. a pair of laterally spaced end support arms mounted on said drive shaft for rotation about its axis, b. a planetary gear means mounted on each of said support arms, c. a sheet tail end gripper means mounted on and extending between said planetary gear means for opera-tion thereby to pick up the tail edge of said sheet, maintain it horizontal in its forward and downward movement along said curvilinear path, and release it at the extent of its forward travel, and d. a cam means for closing and opening said tail end gripper means, in the pickup and release of said trailing edge of said sheet, in the proper time sequence with the delivery of the sheet from said converting means.
Claim 3
Dependent Claim
178 words
A mechanism for the horizontal slowdown and laydown deceleratingly along a forwardly and downwardly curvilinear path of a sheet delivered from a rotary printing, die cutting or other high speed converting means, having a frame, a sheet delivery transport gripper means mounted for movement on said frame, and a drive shaft horizontally journaled therein, comprising: a. a pair of laterally spaced end support arms mounted on said drive shaft for rotation about its axis, b. a planetary gear means mounted on each of said support arms, c. a sheet tail end gripper means mounted on and extending between said planetary gear means for opera-tion thereby to pick up the tail edge of said sheet, maintain it horizontal in its forward and downward movement along said curvilinear path, and release it at the extent of its forward travel, and d. a cam means for closing and opening said tail end gripper means, in the pickup and release of said trailing edge of said sheet, in the proper time sequence with the delivery of the sheet from said converting means.
Claim 4
Dependent Claim
178 words
A mechanism for the horizontal slowdown and laydown deceleratingly along a forwardly and downwardly curvilinear path of a sheet delivered from a rotary printing, die cutting or other high speed converting means, having a frame, a sheet delivery transport gripper means mounted for movement on said frame, and a drive shaft horizontally journaled therein, comprising: a. a pair of laterally spaced end support arms mounted on said drive shaft for rotation about its axis, b. a planetary gear means mounted on each of said support arms, c. a sheet tail end gripper means mounted on and extending between said planetary gear means for opera-tion thereby to pick up the tail edge of said sheet, maintain it horizontal in its forward and downward movement along said curvilinear path, and release it at the extent of its forward travel, and d. a cam means for closing and opening said tail end gripper means, in the pickup and release of said trailing edge of said sheet, in the proper time sequence with the delivery of the sheet from said converting means.
Claim 5
Dependent Claim
78 words
A horizontal slowdown and laydown mechanism according to claim 1 wherein the planetary gear means for maintaining the sheet horizontal comprises: a. a sun gear fixed to the frame at each support arm coaxially with the drive shaft, b. a gripper gear rotatably mounted on a spindle carried by each support arm at its outer end, and c. an idler gear means rotatably mounted on each support arm and enmeshed with said sun gear and said gripper gear.
Claim 6
Dependent Claim
85 words
A sheet horizontal slowdown and laydown mechanism according to claim 2 whereIn the sheet tail edge gripper means comprises: a. a gripper bar mounted on said gripper gears and fixedly mounting a plurality of horizontal laterally spaced lower gripper pads, and b. a gripper shaft rotatably mounted on said gripper gears and carrying a plurality of laterally spaced movable upper gripper pads, one opposite each fixed lower gripper pad, for coaction therewith in the pickup and release of the tail edge of said sheet therebetween.
Claim 7
Dependent Claim
121 words
A sheet horizontal slowdown and laydown mechanism according to claim 3 wherein the cam means for actuating the sheet tail edge gripper means in pickup and release of said trailing edge of said sheet comprises: a. a circumferential cam fixedly mounted on the end support arm centered on the spindle mounted to each support arm, and b. a cam follower in running engagement with said cam mounted on a lever arm radially extending from said gripper shaft to open and close the movable upper gripper pad on the tail edge of the sheet lying on the fixed horizontal gripper pad for pickup and release of the sheet in the proper time sequence with delivery of the sheet from the converting means.
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) | 1975-11-21 | 1976-05-22 | 1976-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-21 | 1980-05-22 | 1980-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-21 | 1984-05-22 | 1984-11-21 | $7700.00 | Window Closed / Lapsed |