EP0805042B1 - Einstellbare Spindelantriebsanordnung für Medienförderung mittels Rollen in einem Tintenstrahldrucker/plotter - Google Patents
Einstellbare Spindelantriebsanordnung für Medienförderung mittels Rollen in einem Tintenstrahldrucker/plotter Download PDFInfo
- Publication number
- EP0805042B1 EP0805042B1 EP97106981A EP97106981A EP0805042B1 EP 0805042 B1 EP0805042 B1 EP 0805042B1 EP 97106981 A EP97106981 A EP 97106981A EP 97106981 A EP97106981 A EP 97106981A EP 0805042 B1 EP0805042 B1 EP 0805042B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hub
- media
- rollfeed
- spindle
- endcap
- 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
Links
- 230000020347 spindle assembly Effects 0.000 title claims description 22
- 238000000034 method Methods 0.000 description 6
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J15/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in continuous form, e.g. webs
- B41J15/02—Web rolls or spindles; Attaching webs to cores or spindles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/18—Constructional details
- B65H75/24—Constructional details adjustable in configuration, e.g. expansible
- B65H75/242—Expansible spindles, mandrels or chucks, e.g. for securing or releasing cores, holders or packages
- B65H75/246—Expansible spindles, mandrels or chucks, e.g. for securing or releasing cores, holders or packages expansion caused by relative rotation around the supporting spindle or core axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2801/00—Application field
- B65H2801/03—Image reproduction devices
- B65H2801/12—Single-function printing machines, typically table-top machines
Definitions
- This invention relates generally to printers and plotters, and more particularly to techniques for using rollfeed media in inkjet printers/plotters.
- tray devices in printers which have the capability of handling different sizes and types of media, including adjustments for media having different lengths and/or widths.
- large format printers/plotters which typically use rollfeed media of different sizes and types, it has been more difficult to provide mechanisms, devices and techniques for efficiently and precisely feeding media from different rolls into a media path of a large format printer such as the DESIGNJET large format printers/plotters of Hewlett-Packard Company.
- Some large format plotters provide a stand for holding multiple spindles with different rolls all at the same time, thereby allowing selective use of different rollfeed media without having to change spindles in the plotter.
- the invention provides a spindle assembly for rollfeed media in a printer/plotter which includes a spindle having differently sized hubs which are removably mounted on the spindle.
- One end of the spindle is used for axial referencing and includes an end cap having an axial latch and a rotational stop for manually actuated engagement/disengagement with hubs of different sizes, shapes and configurations.
- Each pair of matching hubs has outwardly extending arms to grip and hold a roll of media in given radial and axial location on the spindle.
- a small diameter spindle assembly includes hubs capable of gripping opposite ends of either one inch diameter or two inch diameter rollfeed media cores.
- a hybrid hub can be positioned on the spindle for either large or small diameter rollfeed media cores.
- one set of hubs is used for smaller diameter rollfeed media cores, while a different set of hubs is used for larger diameter rollfeed media cores.
- a hub design incorporates a plurality of cantilever arm members which require relatively low insertion force in order to adequately install the hubs into the rollfeed media cores.
- JP-A-08 081093 discloses a spindle assembly for mounting rollfeed media to be printed on an inkjet printer comprising:
- the invention provides a spindle assembly for rollfeed media in a printer/plotter which includes a spindle having differently sized hubs which are removably mounted on the spindle.
- One end of the spindle is used for axial referencing and includes an end cap having an axial latch and a rotational stop for manually actuated engagement/disengagement with hubs of different sizes, shapes and-configurations.
- Each pair of matching hubs has outwardly extending arms to grip and hold a roll of media in a given radial and axial location on the spindle.
- both the left-hand and right-hand hubs are identical, even though only on of the hubs (in the preferred embodiment the right-hand hub) is fixedly attached to the spindle rod, through the endcap.
- a small diameter spindle assembly includes hubs capable of gripping opposite ends of either one inch diameter or two inch diameter rollfeed media cores.
- a hybrid hub can be positioned on the spindle for either large or small diameter rollfeed media cores.
- one set of hubs is used for smaller diameter rollfeed media cores, while a different set of hubs is used for larger diameter rollfeed media cores.
- a hub design for large diamter media cores incorporates a plurality of cantilever arm members which require relatively low insertion force in order to adequately install the hubs into the rollfeed media cores.
- a typical printer/plotter unit 25 having a traversing carriage 20 which moves back and forth along a carriage scan Y axis, with an encoder strip 22 to indicate the position of the carriage and its print cartridges 23. Legs 24 are provided for support and stability.
- a roll feed unit 26 is incorporated permanently on the front of the printer/plotter and is capable of incorporating the unique features of the present invention.
- a rotating platen 27 pulls the media off the roll feed and through the print zone where the carriage scans across it in successive swaths, after which the media 28 goes into a collection bin 29.
- FIG. 2 A newer version of large format inkjet printer incorporating an optional rollfeed unit is shown in Fig. 2.
- a spindle rod 30 and its removably mounted right-hand hub 32 and left-hand hub 34 are shown schematically in Fig. 2 and are described in more detail hereinafter.
- directional arrows indicate the direction of movement of the media off a roll 35 and through the printer during an initial startup procedure, with a printer cover 36 raised, a paper bail 38 up, and a paper release lever 40 available to assist in the manual media alignment procedure.
- Fig. 4 shows the procedure for returning unused media back onto the roll 35 by manually reversing 42 the direction of rotation of the roll while the printer cover 36 is raised, the paper bail 38 is up, and the paper release lever 40 is in a "paper release" position.
- Fig. 5 shows a back view of the optional rollfeed unit, including top pivot holes 44 and bottom clips 46 on side frame members 48 for securing the unit to the printer.
- the spindle rod 30 is shown with a large diameter right hand hub 50 mounted thereon (without any rollfeed media).
- Fig. 6 shows the details of a preferred form of large diameter hub
- Fig. 7 shows it partially mounted on the spindle rod 30 in conjunction with a right endcap 52.
- the hub includes two pair of back-to-back elongated flex-arms each having a radial portion 54, a lateral portion 56, and truncated reverse-radial portion 58.
- the flex arms move both inwardly and laterally to accomodate the force transferred through the four tapered shoulders 60 located at the junction between the lateral portion 56 and the reverse-radial portion 58.
- Such a long lever arm results in relatively low insertion force.
- Limit protrusions 61 prevent excessive lateral movement of the flex arms, while the terminal edge 63 is held from excessive radial movement by the outer surface of the cylindrical hub body 65.
- Stop members 62 abut the end of a rollfeed core, and any media extending beyond the edge of the core is stopped by a solid wing 62 and an opposing slotted wing 64.
- the solid wing includes an axial slot 66 for engagement with a matching tab 67 for preventing relative rotation between the right-hand hub and endcap, while the slotted wing has a small ledge 69 which engages an arrow stop 68 on the endcap to prevent relative axial movement between the right-hand hub and endcap.
- a central bearing 72 provides a right end reference, and flex arm ends 74 abut an outer surface of the large diameter portion 76 of the endcap to provide a further controlled reference for the rollfeed media.
- Fig. 8 shows a right end of a large-diameter spindle assembly mounted in a right frame sub-assembly.
- a plastic wall 78 provides a reference surface for the bearing 72.
- Figs. 9A and 9B show the right end of a large diameter spindle assembly before and after mounting inside of a two-inch core 80, respectively
- Figs. 10A through 10F the sequence of steps is illustrated in a self-explanatory way for removing a spindle assembly for a first diameter rollfeed media core and replacing it with a spindle assembly for a smaller diameter rollfeed media core.
- the spindle assembly is removed from the plotter by pulling each end out of the spring-loaded seats in the end frame sub-assemblies (Fig. 10A). Then the left-hand hub is slid off the left end of the spindle rod (Fig. 10B). The right-hand hub is securely attached to the spindle assembly and requires additional steps for removal. First the spindle is placed with its left endcap against the floor, and then both wings of the right-hand hub are pushed firmly down to dislodge it from the right endcap (Fig. 10C). Once the right-hand hub has been freed, it can be slid off the left end of the spindle rod.
- the new right-hand smaller diameter hub is slid on the left end of the spindle rod and moved towards the right end. It is necessary to spread apart slightly the hub wing having a gap, then rotate it to match the gap with a little arrow latch on the right endcap, and push it further along the spindle until it snaps onto such little arrow latch (Fig. 10D).
- the new smaller-diameter rollfeed media is then inserted over the left end of the spindle rod into engagement with the right-hand smaller diameter hub, after which the left-hand smaller diameter hub is inserted over the left end of the spindle rod into engagement with the core of the new rollfeed media (Fig. 10E). Finally the entire new rollfeed spindle assembly is re-installed back onto the printer (Fig. 10F).
- Figs. 11-13 show a small diameter hub suitable as a left-hand or right-hand hub of the type re-installed in Fig. 10E. It includes a completely slit wing 90 and six tapered shoulders 92. Both slit wing 90 and a solid wing 92 include the same ledge and axial slot needed for referenced secure engagement with the right endcap, similar to the large diameter hub.
- Figs. 14-16 schematically show a hybrid endcap with a small diameter tapered shaft 94 and an oppositely facing larger diameter tapered shaft 96, with a large diameter central ring 98 for referencing an end cap as well as the end of a rollfeed core.
Landscapes
- Unwinding Webs (AREA)
- Replacement Of Web Rolls (AREA)
- Handling Of Continuous Sheets Of Paper (AREA)
Claims (2)
- Spindelanordnung zur Aufnahme von als Rollen zugeführten Medien, die von einem Tintenstrahldrucker zu bedrucken sind, umfassend:eine Spindelstange (30), die eine an einem Ende der Spindelstange angebrachte Bezugsendkappe (52) mit einem äußeren Bezugspunkt an der Bezugsendkappe, der von der Spindelstange weg weist, und einem inneren Bezugspunkt an der Bezugsendkappe umfaßt, der zur Spindelstange hin weist;eine Nabe (50), die verschiebbar und verdrehbar auf der Spindelstange (30) anbringbar ist, wobei die Nabe eine Bezugsfläche zum Zusammenwirken mit dem inneren Bezugspunkt der Bezugsendkappe und mehrere radiale Armen zum Halten eines ersten, mit Rollenzufuhr-Medienkerns aufweist;Haltemittel zum Verbinden der Nabe (50) mit der Bezugsendkappe (52), um die Nabe in einer vorbestimmten Position bezüglich der Bezugsendkappe zu sichern.
- Spindelanordnung nach Anspruch 1, die außerdem eine optionale Nabe mit mehreren radialen Armen zum Halten eines zweiten, Rollenzufuhr-Medienkerns unterschiedlichen Durchmessers umfaßt.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US63957196A | 1996-04-29 | 1996-04-29 | |
US639571 | 1996-04-29 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0805042A2 EP0805042A2 (de) | 1997-11-05 |
EP0805042A3 EP0805042A3 (de) | 1998-10-07 |
EP0805042B1 true EP0805042B1 (de) | 2001-06-27 |
Family
ID=24564655
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97106981A Expired - Lifetime EP0805042B1 (de) | 1996-04-29 | 1997-04-28 | Einstellbare Spindelantriebsanordnung für Medienförderung mittels Rollen in einem Tintenstrahldrucker/plotter |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0805042B1 (de) |
KR (1) | KR970069371A (de) |
CN (1) | CN1106948C (de) |
DE (1) | DE69705353T2 (de) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20010046405A1 (en) * | 1998-08-31 | 2001-11-29 | Kenichi Miyazaki | Large printer |
US6565273B2 (en) * | 2000-04-19 | 2003-05-20 | Seiko Epson Corporation | Printer that accomodates rolled paper having various widths |
JP4333367B2 (ja) * | 2004-01-06 | 2009-09-16 | ブラザー工業株式会社 | ロールシートホルダ及びテープ印刷装置 |
US7967515B2 (en) | 2007-04-27 | 2011-06-28 | Hewlett-Packard Development Company, L.P. | Printer using roll-based print media and method of loading printer |
JP6007708B2 (ja) * | 2012-09-27 | 2016-10-12 | ブラザー工業株式会社 | テープカートリッジ |
CN105235426A (zh) * | 2015-10-18 | 2016-01-13 | 常州纳捷机电科技有限公司 | 绘图仪纸盒分页器 |
JP6705188B2 (ja) | 2016-02-01 | 2020-06-03 | 株式会社リコー | ロール体保持装置、印刷装置 |
CN105598688B (zh) * | 2016-02-03 | 2017-12-29 | 来安县新元机电设备设计有限公司 | 绘图仪轴杆自动组装装置 |
CN105598689B (zh) * | 2016-02-03 | 2017-08-25 | 来安县新元机电设备设计有限公司 | 打印机轴杆自动组装装置 |
US10913298B2 (en) | 2017-05-08 | 2021-02-09 | Datamax-O'neil Corporation | Multiple size media holder assembly for a mobile printer |
IT201800007856A1 (it) * | 2018-08-03 | 2020-02-03 | Advanced Techne Srl | Dispositivo per il montaggio di una bobina su un supporto tubolare |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4277034A (en) * | 1979-05-21 | 1981-07-07 | Centronics Data Computer Corp. | Paper roll holder with dancer bar for use with printers and the like |
JPS6246844A (ja) * | 1985-08-23 | 1987-02-28 | Matsushita Graphic Commun Syst Inc | 記録紙保持装置 |
JPH0881093A (ja) * | 1994-09-08 | 1996-03-26 | Graphtec Corp | 記録装置のロール状媒体の保持装置 |
-
1997
- 1997-04-28 DE DE69705353T patent/DE69705353T2/de not_active Expired - Lifetime
- 1997-04-28 EP EP97106981A patent/EP0805042B1/de not_active Expired - Lifetime
- 1997-04-29 CN CN97109747.XA patent/CN1106948C/zh not_active Expired - Fee Related
- 1997-04-29 KR KR1019970016228A patent/KR970069371A/ko not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
CN1106948C (zh) | 2003-04-30 |
DE69705353D1 (de) | 2001-08-02 |
EP0805042A3 (de) | 1998-10-07 |
KR970069371A (ko) | 1997-11-07 |
EP0805042A2 (de) | 1997-11-05 |
CN1165744A (zh) | 1997-11-26 |
DE69705353T2 (de) | 2002-04-25 |
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