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Patent EP0168784A2 successfully refreshed from Google Patents.
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EP0168784A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Sheet delivery device

Assignee: Mitsubishi Heavy Industries Ltd
•
Filing: 1985-07-11
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Granted: —
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Expires: 2005-07-11
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Abstract

Abstract A sheet delivery device of the type in which each sheet delivered by a moving suction unit is received and delivered again by feed rolls. The sheet delivery device features a control unit which detects whether or not each sheet is delivered in synchronization with the operation timing of an equipment positioned on the downstream side of delivery effected by the feed rolls and sends a signal obtained when no synchronized delivery takes place to a rotation driving unit of the feed rolls to change the revolution speed of the feed rolls thereby to realize the synchronized delivery of each sheet. Oblique delivery of the sheet is amended by the use of divided, independently rotation controlled pairs of feed rolls.

Inventors

  • 👤 Tadashi Mihara Machinery Works Of Hirakawa
  • 👤 Arifumi Mihara Machinery Works Of Okamoto

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-03 13:17
CPC Classifications
B; B65; B65H; B65H7/00; B65H7/02; B65H7/06; B65H3/00; B65H3/08; B65H3/0808; B65H3/085; B65H3/12; B65H3/122; B65H7/18

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 92 words
A sheet delivery device including a moving suction unit for delivering sheets and feed rolls for receiving and delivering the sheets delivered by saia suction unit, and characterized by a control unit which detects whether or not each sheet is delivered in synchronization with the operation timing of an equipment positioned on the downstream side of delivery effected by said feed rolls and sends a signal obtained when no synchronized delivery takes place to a rotation driving unit of said feed rolls thereby to change the revolution speed of said feed rolls.
Claim 2
Dependent Claim 92 words
A sheet delivery device including a moving suction unit for delivering sheets and feed rolls for receiving and delivering the sheets delivered by saia suction unit, and characterized by a control unit which detects whether or not each sheet is delivered in synchronization with the operation timing of an equipment positioned on the downstream side of delivery effected by said feed rolls and sends a signal obtained when no synchronized delivery takes place to a rotation driving unit of said feed rolls thereby to change the revolution speed of said feed rolls.
Claim 3
Dependent Claim 56 words
A sheet delivery device as set forth in claim 1, wherein said control unit includes at least one phototube for detecting passage of the front end of each sheet, and two pulse oscillators one for detection of the operation timing of said equipment and the other for detection of the operation timing of said feea rolls.
Claim 4
Dependent Claim 17 words
A sheet delivery device as set forth in claim 1, wherein said equipment includes a print cylinder.
Claim 5
Dependent Claim 68 words
A sheet delivery device as set forth in claim 1, wherein saia feea rolls are divided into two pairs aisposea siae by siae transversally with respect to the aavancing airection of the sheets, and at least two aetecting means for aetecting passage of the front left ena ana front right end of each sheet are provided to control indepenaently the revolution speed each of said feed roll pairs.
Claim 6
Dependent Claim 22 words
A sheet aelivery device as set forth in claim 4, wherein said pairs of feed rolls are coupled to respective driving sources.
Claim 7
Dependent Claim 18 words
A sheet delivery device as set forth in claim 1, wherein the sheet is a corrugated cardboard sheet.

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