US3924849A - Paper gripping device for use with a chain driven paper carriage - Google Patents
Paper gripping device for use with a chain driven paper carriage Download PDFInfo
- Publication number
- US3924849A US3924849A US460103A US46010374A US3924849A US 3924849 A US3924849 A US 3924849A US 460103 A US460103 A US 460103A US 46010374 A US46010374 A US 46010374A US 3924849 A US3924849 A US 3924849A
- Authority
- US
- United States
- Prior art keywords
- paper
- lower step
- grip members
- gripping device
- bar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
- B65H29/02—Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles
- B65H29/04—Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles the grippers being carried by endless chains or bands
- B65H29/042—Intermediate conveyors, e.g. transferring devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
- B65H29/02—Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles
- B65H29/04—Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles the grippers being carried by endless chains or bands
- B65H29/045—Details of grippers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H5/00—Feeding articles separated from piles; Feeding articles to machines
- B65H5/08—Feeding articles separated from piles; Feeding articles to machines by grippers, e.g. suction grippers
- B65H5/085—Feeding articles separated from piles; Feeding articles to machines by grippers, e.g. suction grippers by combinations of endless conveyors and grippers
Definitions
- ABSTRACT Paper gripping device for use with a chain driven paper carriage comprising a gripper bar mounted between the driving chains of the paper carriage, the gripper bar having a U-shaped configuration where one leg of the U-shaped bar is stepped at the upper extremity thereof to form an inner, lower step and an outer, higher step; a shaft rotatably mounted in and along the length of the gripper bar; grip members mounted on the shaft; springs for respectively biasing the group members against the lower step of the stepped portion of the gripping bar so that when a paper sheet is gripped by the gripping member an outwardly convex configuration is imparted thereto by the upper step of the stepped portion to thereby facilitate subsequent processing of the paper; and cam means for rotating the grip members away from the lower step against the biasing action of the springs to permit reception or release of the paper away from the paper gripping device.
- This device relates to a gripper mechanism for carrying the sheets of paper one by one successively in a copying machine, printing machine or the like.
- roller or belt systems have been popularly used for passing the copy or printing paper through each process in a copying or printing machine.
- chain driven systems provided with gripper means adapted to grip or hold each sheet of paper have also been used for carrying the paper in a positive manner.
- the present invention has a primary object of providing an improved chain gripper mechanism which avoids the above described problems of conventional systems.
- FIG. 1 is a schematic illustration of a copying machine in which the paper gripper of the present invention can be incorporated.
- FIGS. 2 to illustrate a preferred embodiment of a paper gripper according to the present invention where FIG. 2 is a plane view, FIG. 3 is a rear view, FIG. 4 is a sectional view taken along the line 44 of FIG. 2, and FIG. 5 is a partial, diagrammatic sketch illustrating the operation of the gripper.
- Copy paper is supplied from one of the paper trays 8 or 9 by a feed roller 10 or 11 and is carried to a transfer zone 14 by a gripper 13 provided on a chain 12. There the paper is closely attached to the surface of the photoconductive drum 7, with the image on the drum surface being transferred to the paper. Thereafter, the copy paper, to which the images have now been transferred, is carried through a fixing unit 15 to complete image fixing. It is then discharged into a receiver container 16. In the above process, the gripper 13 must securely grip every sheet of paper supplied by feed rollers 10 or 11.
- FIGS. 2-5 an illustrative embodiment of a gripper mechanism according to the presentinvention is provided between two parallelchains 20 and 21 by brackets 34.
- a shaft 25 is rotatably supported by bearings 23 and 24 in a gripper bar 22 which is U- shaped in section.
- a plural number of gripping members 26 are rotatably mounted on shaft 25 at suitable intervals.
- Each of the gripping members 26 has a stopper portion 26a for registering the leading edge of paper P and a gripping 26b for holding paper P against an end of the gripper bar 22.
- Each gripping member 26 is forced in the gripping direction, that is, in the clockwise direction in FIG. 4, by an associated spring 27 provided on shaft 25.
- each gripping member 26 In the inside of each gripping member 26 is provided a cam block 28 secured to shaft 25 so as to be rotated therewith and upwardly force gripping member 26, when required, to effect receiving or releasing of paper P. Rotation of shaft 25 is effected by operating a lever 29 at each end of shaft 25 by a cam 31 or other means.
- U-sectioned gripper bar 22 is stepped (see FIG. 4) so that paper P is gripped by gripping member 26 at the inside lower step 30a of stepped portion 30.
- the paper P when gripped, has imparted thereto an outwardly convex configuration by an outside higher step 30b. This convexity proves helpful to effect perfect intimate contact of the leading end of paper P against the surface of the photoconductive drum 7 in transfer zone 14 of FIG. 1.
- Opening'and closing of each gripper member 26 is accomplished by displacing lever 29 with cam 31 as shown in FIG. 5. That is, when paper P is delivered along a guide 33 by feed rollers 32, the gripper 13, which operates at a faster speed than the paper delivery speed, registers the leading edge of paper P against its stopper portion 26a where the forward gripping portion 26b of gripping member 26 extends through an opening (not shown) in guide 33.
- a suitable paper feed device for use with the present invention is described in the copending application mentioned hereinbefore entitled Improved Paper Feed Apparatus."
- the chain driven, paper carriage gripper device provides a uniform gripping force spring 27 which independently press the respective gripper member 26. Registration or correct positioning of each sheet of paper P is readily accomplished as is imparting thereto an optimum configuration. Thus perfect image transfer to the very edge of paper P is effected and hence the attainment of high-quality reproductions.
- Paper gripping device for use with a chain driven paper carriage having at least two driving chains comprising a gripper bar mounted between the driving chains of the paper carriage, said gripper bar having a U- shaped configuration where one leg of the U- shaped bar is stepped at the upper extremity thereof to form an inner, lower step and an outer, higher step having a rise therebetween;
- a shaft rotatably mounted in and along the length of said gripper bar; grip members mounted on said shaft;
- cam means for rotating said grip members away from said lower step against the biasing action of said springs to permit reception or release of said paper away from said paper gripping device.
- each of said grip members includes an upper, forwardly extending portion which engages said lower step under the biasing action of its associated spring and a lower, downwardly extending stopper portion against which said paper is registered as it is received by said paper gripping device.
- a paper gripping device as in claim 2 including first cam members mounted in alignment with each other along said shaft for respectively raising said grip members away from said lower step; at least one lever mounted on said shaft; and a further cam member disposed adjacent the path traveled by said grip members for rotating said lever to effect said raising of the grip members through said first cam members.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Discharge By Other Means (AREA)
- Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
- Paper Feeding For Electrophotography (AREA)
Abstract
Paper gripping device for use with a chain driven paper carriage comprising a gripper bar mounted between the driving chains of the paper carriage, the gripper bar having a U-shaped configuration where one leg of the U-shaped bar is stepped at the upper extremity thereof to form an inner, lower step and an outer, higher step; a shaft rotatably mounted in and along the length of the gripper bar; grip members mounted on the shaft; springs for respectively biasing the group members against the lower step of the stepped portion of the gripping bar so that when a paper sheet is gripped by the gripping member an outwardly convex configuration is imparted thereto by the upper step of the stepped portion to thereby facilitate subsequent processing of the paper; and cam means for rotating the grip members away from the lower step against the biasing action of the springs to permit reception or release of the paper away from the paper gripping device.
Description
United States Patent [191 Murakami Dec. 9, 1975 PAPER GRIPPING DEVICE FOR USE WITH A CHAIN DRIVEN PAPER CARRIAGE [30] Foreign Application Priority Data Apr. 26, 1973 Japan 48-49277 [52] US. Cl. 271/277; 271/204 [51] Int. Cl. B65H 29/04 [58] Field of Search 271/82, 85, 204, 206, 277;
[56] References Cited UNITED STATES PATENTS 3,797,929 3/1974 Deacon et al 271/277 Primary ExaminerRichard A. Schacher Assistant ExaminerRobert Saifer Attorney, Agent, or Firm-Gerald J. Ferguson, Jr.; Joseph J. Baker [57] ABSTRACT Paper gripping device for use with a chain driven paper carriage comprising a gripper bar mounted between the driving chains of the paper carriage, the gripper bar having a U-shaped configuration where one leg of the U-shaped bar is stepped at the upper extremity thereof to form an inner, lower step and an outer, higher step; a shaft rotatably mounted in and along the length of the gripper bar; grip members mounted on the shaft; springs for respectively biasing the group members against the lower step of the stepped portion of the gripping bar so that when a paper sheet is gripped by the gripping member an outwardly convex configuration is imparted thereto by the upper step of the stepped portion to thereby facilitate subsequent processing of the paper; and cam means for rotating the grip members away from the lower step against the biasing action of the springs to permit reception or release of the paper away from the paper gripping device.
3 Claims, 5 Drawing Figures Sheet 2 0f 2 3,924,849
US. Patent Dec. 9, 1975 PAPER GRIPPING DEVICE FOR USE WITH A CHAIN DRIVEN PAPER CARRIAGE CROSS REFERENCE TO RELATED APPLICATION This application is related to a United States Patent Application entitled Improved Paper Feed Apparatus filed by Shin-ichi Murakami on Jan. 29, 1974, assigned Ser. No. 437,186 which is incorporated herein by reference.
BACKGROUND OF THE INVENTION 1. Field of the Invention This device relates to a gripper mechanism for carrying the sheets of paper one by one successively in a copying machine, printing machine or the like.
2. Discussion of the Prior Art Heretofore, roller or belt systems have been popularly used for passing the copy or printing paper through each process in a copying or printing machine. However, instead of such roller or belt systems, chain driven systems provided with gripper means adapted to grip or hold each sheet of paper have also been used for carrying the paper in a positive manner.
However, conventional chain-gripper systems have had many problems in practice. For example, the grippers mounted on the drive chain have been unduly large thus requiring excessive space therefor. Further, they have often failed to provide sufficient and uniform gripping force along the entire length of the paper. Also, the gripped end of the paper has tended to curl and undulate thus badly spreading ink or rendering it very difficult to transfer a perfect image onto the copy or printing paper. It has also been difficult to enable the grippers to grip the leading edge of the paper evenly along the entire length thereof.
SUMMARY OF THE INVENTION The present invention has a primary object of providing an improved chain gripper mechanism which avoids the above described problems of conventional systems.
Other objects and advantages of the invention will become apparent after reading the specification and claims taken with the drawing.
BRIEF DESCRIPTION OF THE DRAWING FIG. 1 is a schematic illustration of a copying machine in which the paper gripper of the present invention can be incorporated.
FIGS. 2 to illustrate a preferred embodiment of a paper gripper according to the present invention, where FIG. 2 is a plane view, FIG. 3 is a rear view, FIG. 4 is a sectional view taken along the line 44 of FIG. 2, and FIG. 5 is a partial, diagrammatic sketch illustrating the operation of the gripper.
DETAILED DESCRIPTION OF PREFERRED EMBODIMENT Formation of the images on the surface of photoconductive drum 7 can be accomplished by known electrophotographic systems such as, for example, a xerographic system.
Copy paper is supplied from one of the paper trays 8 or 9 by a feed roller 10 or 11 and is carried to a transfer zone 14 by a gripper 13 provided on a chain 12. There the paper is closely attached to the surface of the photoconductive drum 7, with the image on the drum surface being transferred to the paper. Thereafter, the copy paper, to which the images have now been transferred, is carried through a fixing unit 15 to complete image fixing. It is then discharged into a receiver container 16. In the above process, the gripper 13 must securely grip every sheet of paper supplied by feed rollers 10 or 11.
Referring to FIGS. 2-5, an illustrative embodiment of a gripper mechanism according to the presentinvention is provided between two parallelchains 20 and 21 by brackets 34. A shaft 25 is rotatably supported by bearings 23 and 24 in a gripper bar 22 which is U- shaped in section. A plural number of gripping members 26 are rotatably mounted on shaft 25 at suitable intervals. Each of the gripping members 26 has a stopper portion 26a for registering the leading edge of paper P and a gripping 26b for holding paper P against an end of the gripper bar 22. Each gripping member 26 is forced in the gripping direction, that is, in the clockwise direction in FIG. 4, by an associated spring 27 provided on shaft 25.
In the inside of each gripping member 26 is provided a cam block 28 secured to shaft 25 so as to be rotated therewith and upwardly force gripping member 26, when required, to effect receiving or releasing of paper P. Rotation of shaft 25 is effected by operating a lever 29 at each end of shaft 25 by a cam 31 or other means.
The forward end 30 of U-sectioned gripper bar 22 is stepped (see FIG. 4) so that paper P is gripped by gripping member 26 at the inside lower step 30a of stepped portion 30. The paper P, when gripped, has imparted thereto an outwardly convex configuration by an outside higher step 30b. This convexity proves helpful to effect perfect intimate contact of the leading end of paper P against the surface of the photoconductive drum 7 in transfer zone 14 of FIG. 1.
Opening'and closing of each gripper member 26 is accomplished by displacing lever 29 with cam 31 as shown in FIG. 5. That is, when paper P is delivered along a guide 33 by feed rollers 32, the gripper 13, which operates at a faster speed than the paper delivery speed, registers the leading edge of paper P against its stopper portion 26a where the forward gripping portion 26b of gripping member 26 extends through an opening (not shown) in guide 33. A suitable paper feed device for use with the present invention is described in the copending application mentioned hereinbefore entitled Improved Paper Feed Apparatus." When lever 29 passes a point A on cam 31, gripper member 26 is closed to grip the paper P. Releasing of the grip can be accomplished in the same way by displacing the lever 29 by another cam or other means.
In summary, the chain driven, paper carriage gripper device according to the present invention provides a uniform gripping force spring 27 which independently press the respective gripper member 26. Registration or correct positioning of each sheet of paper P is readily accomplished as is imparting thereto an optimum configuration. Thus perfect image transfer to the very edge of paper P is effected and hence the attainment of high-quality reproductions.
What is claimed is:
1. Paper gripping device for use with a chain driven paper carriage having at least two driving chains comprising a gripper bar mounted between the driving chains of the paper carriage, said gripper bar having a U- shaped configuration where one leg of the U- shaped bar is stepped at the upper extremity thereof to form an inner, lower step and an outer, higher step having a rise therebetween;
a shaft rotatably mounted in and along the length of said gripper bar; grip members mounted on said shaft;
springs for respectively biasing said grip members against said inner, lower step of the stepped portion of the gripping bar, said grip members engaging said lower step substantially adjacent to the said rise from said inner, lower step to said outer, higher step so that when a paper sheet is gripped by said gripping member an outwardly convex configuration is imparted thereto by the upper step of said stepped portion to thereby facilitate subsequent processing of said paper; and
cam means for rotating said grip members away from said lower step against the biasing action of said springs to permit reception or release of said paper away from said paper gripping device.
2. A paper gripping device as in claim 1 where each of said grip members includes an upper, forwardly extending portion which engages said lower step under the biasing action of its associated spring and a lower, downwardly extending stopper portion against which said paper is registered as it is received by said paper gripping device.
3. A paper gripping device as in claim 2 including first cam members mounted in alignment with each other along said shaft for respectively raising said grip members away from said lower step; at least one lever mounted on said shaft; and a further cam member disposed adjacent the path traveled by said grip members for rotating said lever to effect said raising of the grip members through said first cam members.
Claims (3)
1. Paper gripping device for use with a chain driven paper carriage having at least two driving chains comprising a gripper bar mounted between the driving chains of the paper carriage, said gripper bar having a U-shaped configuration where one leg of the U-shaped bar is stepped at the upper extremity thereof to form an inner, lower step and an outer, higher step having a rise therebetween; a shaft rotatably mounted in and along the length of said gripper bar; grip members mounted on said shaft; springs for respectively biasing said grip members against said inner, lower step of the stepped portion of the gripping bar, said grip members engaging said lower step substantially adjacent to the said rise from said inner, lower step to said outer, higher step so that when a paper sheet is gripped by said gripping member an outwardly convex configuration is imparted thereto by the upper step of said stepped portion to thereby facilitate subsequent processing of said paper; and cam means for rotating said grip members away from said lower step against the biasing action of said springs to permit reception or release of said paper away from said paper gripping device.
2. A paper gripping device as in claim 1 where each of said grip members includes an upper, forwardly extending portion which engages said lower step under the biasing action of its associated spring and a lower, downwardly extending stopper portion against which said paper is registered as it is received by said paper gripping device.
3. A paper gripping device as in claim 2 including first cam members mounted in alignment with each other along said shaft for respectively raising said grip members away from said lower step; at least one lever mounted on said shaft; and a further cam member disposed adjacent the path traveled by said grip members for rotating said lever to effect said raising of the grip members through said first cam members.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1973049277U JPS5316910Y2 (en) | 1973-04-26 | 1973-04-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3924849A true US3924849A (en) | 1975-12-09 |
Family
ID=12826347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US460103A Expired - Lifetime US3924849A (en) | 1973-04-26 | 1974-04-11 | Paper gripping device for use with a chain driven paper carriage |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US3924849A (en) |
| JP (1) | JPS5316910Y2 (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4348018A (en) * | 1978-08-10 | 1982-09-07 | Gaspar A. H. Bijttebier | Method and apparatus for the separation of flexible sheets from a stack and their transportation to a processing unit |
| US4501415A (en) * | 1981-09-04 | 1985-02-26 | Motter Printing Press Co. | Balanced deflection gripper for sheet handling equipment |
| US4526100A (en) * | 1983-05-20 | 1985-07-02 | Siasprint S.R.L. | Gripper device for transporting and registering plates or sheets to be overprinted on silk screen printing machines in one or more colors |
| US4530495A (en) * | 1982-12-01 | 1985-07-23 | Veb Kombinat Polygraph "Werner Lamberz" Leipzig | Pick-up unit in a sheet-transporting device of a printing machine |
| US4629176A (en) * | 1984-12-07 | 1986-12-16 | Xerox Corporation | Paper gripper bar |
| US5053826A (en) * | 1990-12-21 | 1991-10-01 | Xerox Corporation | Transfer loop synchronization in recirculating color printers |
| US5128726A (en) * | 1990-12-20 | 1992-07-07 | Xerox Corporation | Sheet transport system with improved gripping and registration mechanism |
| US5301938A (en) * | 1992-12-17 | 1994-04-12 | Xerox Corporation | Apparatus for gripping and registering sheets |
| US5320341A (en) * | 1992-06-29 | 1994-06-14 | Xerox Corporation | Document handler for transporting large documents |
| DE4434151A1 (en) * | 1994-09-24 | 1996-03-28 | Heidelberger Druckmasch Ag | Grip for sheet printing machine |
| DE19527439A1 (en) * | 1995-07-27 | 1997-02-06 | Heidelberger Druckmasch Ag | Gripper bridge for printing machine arms |
| US6179111B1 (en) * | 1996-10-12 | 2001-01-30 | Koenig & Bauer Aktiengesellschaft | Device for conveying folded signatures |
| US6487966B2 (en) | 2000-08-11 | 2002-12-03 | I.S.T. S.R.L. | Gripper for conveying sheets in silk-screen printing machines |
| US20050070418A1 (en) * | 2003-09-30 | 2005-03-31 | Haasl Andrew L. | Assembly for and method of gripping sheets of material in an interfolder |
| US9624040B2 (en) | 2010-08-25 | 2017-04-18 | Hewlett-Packard Development Company, L.P. | Substrate support |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101961950B (en) * | 2010-08-13 | 2013-04-10 | 天津长荣印刷设备股份有限公司 | Tooth-opening sampling device and working method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3797929A (en) * | 1973-01-29 | 1974-03-19 | Sperry Rand Corp | Gripper-bar bumper pads |
-
1973
- 1973-04-26 JP JP1973049277U patent/JPS5316910Y2/ja not_active Expired
-
1974
- 1974-04-11 US US460103A patent/US3924849A/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3797929A (en) * | 1973-01-29 | 1974-03-19 | Sperry Rand Corp | Gripper-bar bumper pads |
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4348018A (en) * | 1978-08-10 | 1982-09-07 | Gaspar A. H. Bijttebier | Method and apparatus for the separation of flexible sheets from a stack and their transportation to a processing unit |
| US4501415A (en) * | 1981-09-04 | 1985-02-26 | Motter Printing Press Co. | Balanced deflection gripper for sheet handling equipment |
| US4530495A (en) * | 1982-12-01 | 1985-07-23 | Veb Kombinat Polygraph "Werner Lamberz" Leipzig | Pick-up unit in a sheet-transporting device of a printing machine |
| US4526100A (en) * | 1983-05-20 | 1985-07-02 | Siasprint S.R.L. | Gripper device for transporting and registering plates or sheets to be overprinted on silk screen printing machines in one or more colors |
| US4629176A (en) * | 1984-12-07 | 1986-12-16 | Xerox Corporation | Paper gripper bar |
| US5128726A (en) * | 1990-12-20 | 1992-07-07 | Xerox Corporation | Sheet transport system with improved gripping and registration mechanism |
| US5053826A (en) * | 1990-12-21 | 1991-10-01 | Xerox Corporation | Transfer loop synchronization in recirculating color printers |
| US5320341A (en) * | 1992-06-29 | 1994-06-14 | Xerox Corporation | Document handler for transporting large documents |
| US5301938A (en) * | 1992-12-17 | 1994-04-12 | Xerox Corporation | Apparatus for gripping and registering sheets |
| DE4434151C2 (en) * | 1994-09-24 | 2000-05-25 | Heidelberger Druckmasch Ag | Grippers for sheet-fed printing machines |
| DE4434151A1 (en) * | 1994-09-24 | 1996-03-28 | Heidelberger Druckmasch Ag | Grip for sheet printing machine |
| US5605098A (en) * | 1994-09-24 | 1997-02-25 | Heidelberger Druckmaschinen Ag | Grippers for sheet-fed printing presses |
| DE19527439A1 (en) * | 1995-07-27 | 1997-02-06 | Heidelberger Druckmasch Ag | Gripper bridge for printing machine arms |
| US5758576A (en) * | 1995-07-27 | 1998-06-02 | Heidelberger Druckmaschinen Ag | Gripper bar for deliveries of printing presses |
| DE19527439C2 (en) * | 1995-07-27 | 2002-10-24 | Heidelberger Druckmasch Ag | Gripper bridge for printing machine arms |
| US6179111B1 (en) * | 1996-10-12 | 2001-01-30 | Koenig & Bauer Aktiengesellschaft | Device for conveying folded signatures |
| US6487966B2 (en) | 2000-08-11 | 2002-12-03 | I.S.T. S.R.L. | Gripper for conveying sheets in silk-screen printing machines |
| US20050070418A1 (en) * | 2003-09-30 | 2005-03-31 | Haasl Andrew L. | Assembly for and method of gripping sheets of material in an interfolder |
| US7329221B2 (en) * | 2003-09-30 | 2008-02-12 | Fpna Acquisition Corporation | Assembly for and method of gripping sheets of material in an interfolder |
| US9624040B2 (en) | 2010-08-25 | 2017-04-18 | Hewlett-Packard Development Company, L.P. | Substrate support |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5316910Y2 (en) | 1978-05-06 |
| JPS49150231U (en) | 1974-12-26 |
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