EP2913192A1 - Mécanisme de guidage de papier pour imprimante - Google Patents

Mécanisme de guidage de papier pour imprimante Download PDF

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Publication number
EP2913192A1
EP2913192A1 EP15154987.0A EP15154987A EP2913192A1 EP 2913192 A1 EP2913192 A1 EP 2913192A1 EP 15154987 A EP15154987 A EP 15154987A EP 2913192 A1 EP2913192 A1 EP 2913192A1
Authority
EP
European Patent Office
Prior art keywords
paper
guide
guides
paper guide
link lever
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.)
Withdrawn
Application number
EP15154987.0A
Other languages
German (de)
English (en)
Inventor
Tsuyoshi Sakaino
Mikio Moriya
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DATECS LTD.
SANEI ELECTRIC INC.
Original Assignee
Sanei Electric Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sanei Electric Inc filed Critical Sanei Electric Inc
Publication of EP2913192A1 publication Critical patent/EP2913192A1/fr
Withdrawn legal-status Critical Current

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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
    • B65H16/00—Unwinding, paying-out webs
    • B65H16/02—Supporting web roll
    • B65H16/06—Supporting web roll both-ends type
    • 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
    • B41J11/00—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/0025—Handling copy materials differing in width
    • 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
    • B41J15/04—Supporting, feeding, or guiding devices; Mountings for web rolls or spindles
    • B41J15/042—Supporting, feeding, or guiding devices; Mountings for web rolls or spindles for loading rolled-up continuous copy material into printers, e.g. for replacing a used-up paper roll; Point-of-sale printers with openable casings allowing access to the rolled-up continuous copy material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2402/00—Constructional details of the handling apparatus
    • B65H2402/30—Supports; Subassemblies; Mountings thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/10—Size; Dimensions
    • B65H2511/12—Width
    • 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

  • the present invention relates to a paper guide mechanism of a printer, and particularly to a slide mechanism for a pair of paper guides that keep both end surfaces of a paper roll.
  • Japanese Patent Application Laid-Open No. H08-2407 discloses a paper guide mechanism that allows a pair of the paper guides to move closer to or away from each other with respect to the center by connecting the pair of paper guides to one ends of a pair of guide arms, connecting the other ends of the pair of guide arms together, and sliding the other ends of the guide arms in a direction perpendicular to a slide direction of the paper guides.
  • Japanese Patent No. 4, 776, 023 discloses a paper guide mechanism in which racks are formed on a pair of paper guides, and a pair of racks and pinion gears are used to allow the pair of paper guides to move closer to or away from each other.
  • Japanese Patent Application Laid-Open No. 2013-154580 discloses a mechanism in which the sliding of a pair of paper guides is locked when a lid of a case is closed.
  • Japanese Patent No. 4,537,541 discloses a slide mechanism for a pair of holding plates.
  • a pair of paper guides needs to move in conjunction with a pair of guide arms; or a pair of racks engages with pinion gears when one of the paper guides moves in conjunction with the other.
  • Such a complex mechanism makes it difficult to realize a small and lightweight device.
  • a locking mechanism such as ratchet mechanism
  • ratchet mechanism is provided in order to fix the paper guides, so that the paper guides do not easily move after adjustments are made to the guide width.
  • the locking mechanism needs to be unlocked through an operation lever or the like before the guide width is changed. Therefore, the problem is that the mechanism is complex, and that the operability is poor.
  • the present invention has been made to solve the above problems.
  • the object of the present invention is to provide a printer's paper guide mechanism with a simple configuration that allows a pair of paper guides to move closer to or away from each other.
  • Another object of the present invention is to provide a paper guide mechanism that can offer an easy operation of locking the sliding of the paper guides and an easy operation of unlocking.
  • a paper guide mechanism of a printer of the present invention includes: a printer body that includes a paper roll holder; first and second paper guides that come in contact with both end surfaces, respectively, of a paper roll in the paper roll holder and prevent a positional shift of the paper roll in a central axis direction; first and second guide rails that restrict movement directions of the first and second paper guides so as to allow the first and second paper guides to slide in the central axis direction of the paper roll; and a link lever that connects the first paper guide and the second paper guide, wherein the first and second paper guides engage with one end of a longitudinal side of the link lever and the other end, respectively, a central portion of the longitudinal side of the link lever is pivotally supported on the printer body via a rotation shaft, and the link lever enables the first and second paper guides to slide in conjunction with each other and to move closer to or away from each other.
  • the paper guide mechanism it is possible to realize the paper guide mechanism with a simple configuration that allows a pair of paper guides to move closer to or away from each other.
  • the paper guide mechanism of the present invention preferably further includes a cover that opens or closes the paper roll holder, wherein the cover includes a ratchet section that is fitted onto the first paper guide and the second paper guide when the cover is closed and fix positions of the first and second paper guides.
  • the link lever preferably includes a plate spring section, and the plate spring section engages, in a frictional manner, with an uneven surface that is located in a pressing direction thereof and is provided on a side of the printer body.
  • This configuration enables a user to receive a click feeling when the plate spring section goes over the uneven surface. Therefore, it is possible to increase the positioning accuracy of the paper guides and the operability.
  • the first and second paper guides are preferably identical in shape, and the first and second paper guides are dyad symmetrical. According to this configuration, common parts can be used, resulting in a reduction in costs.
  • the paper guide mechanism of the present invention preferably further includes: a third guide rail that is disposed on an extension of the second guide rail and restricts the movement direction of the first paper guide so as to allow the first paper guide to slide in the central axis direction of the paper roll; and a fourth guide rail that is disposed on an extension of the first guide rail and restricts the movement direction of the second paper guide so as to allow the second paper guide to slide in the central axis direction of the paper roll, wherein the first paper guide includes a first fitting portion that is fitted onto the first guide rail, and a second fitting portion that is fitted onto the third guide rail, the second paper guide includes a third fitting portion that is fitted onto the second guide rail, and a fourth fitting portion that is fitted onto the fourth guide rail, the first and third fitting portions are C-shaped or O-shaped in cross section in order not to allow the first and third fitting portions to be detached in a direction perpendicular to extending directions of the first and second guide rails, and the second and fourth fitting portions are U-shaped in cross section in order to allow
  • the first to fourth guide rails are preferably formed integrally with the printer body. According to this configuration, it is possible to realize the slide mechanism for the paper guides easily and at low cost.
  • a printer's paper guide mechanism with a simple configuration that allows a pair of paper guides to move closer to or away from each other.
  • a paper guide mechanism that can offer an easy operation of locking the sliding of the paper guides and an easy operation of unlocking.
  • FIG. 1 is a schematic perspective view showing the configuration of a printer according to a first embodiment of the present invention.
  • FIG. 1 shows a situation where a cover is being opened.
  • a printer 1 of the present embodiment includes a printer body 10, which includes a paper roll holder 11; a label printing unit 12, which includes a thermal head; and a cover 13, which is provided above the paper roll holder 11.
  • the paper roll holder 11 is located in a rear portion of the printer body 10.
  • the label printing unit 12 is provided in a front portion of the printer body 10 so as to be located ahead of the paper roll holder 11.
  • a rotation shaft 13a of the cover 13 is provided in a rear end portion of the printer body 10.
  • the paper roll 2 is housed in the paper roll holder 11.
  • a pair of paper guides 15L and 15R are provided on both sides of the paper roll 2 in the width direction.
  • the paper guides 15L and 15R are in contact with the left and right sides of the paper roll 2 in order to prevent a positional shift of the paper roll in a central axis direction.
  • a platen roller 16 is mounted in a front end portion of the cover 13. The platen roller 16 is positioned so as to face a thermal head (not shown) of the label printing unit 12 when the cover 13 is closed.
  • ratchet sections 13c are provided on a back surface of the cover 13.
  • cover 13 When the cover 13 is being closed, upper end portions of the paper guides 15L and 15R engage with corresponding ratchet sections 13c to ensure that the positions of the paper guides 15L and 15R are fixed.
  • FIG. 2 is a schematic perspective view showing the configuration of a paper guide mechanism.
  • the paper guide mechanism includes the pair of paper guides 15L and 15R; guide rails 17a and 17c, which define a sliding direction of one paper guide 15L (first paper guide) ; guide rails 17b and 17d, which define a sliding direction of the other paper guide 15R (second paper guide) ; and a link lever 18, which connects the first paper guide 15L and the second paper guide 15R.
  • the sliding direction of the paper guides 15L and 15R is the same as a central axis direction of the paper roll (Refer to FIG. 1 ).
  • the guide rails 17a to 17d are provided in a bottom of the paper roll holder 11, and are formed integrally with the printer body 10.
  • the first paper guide 15L is mounted on the two guide rails 17a and 17c that are parallel to one another.
  • the second paper guide 15R is mounted on the two guide rails 17b and 17d that are parallel to one another.
  • the first paper guide 15L includes a first fitting portion 15a, which is fitted onto the first guide rail 17a; and a second fitting portion 15b, which is fitted onto the third guide rail 17c.
  • the second paper guide 15R includes a third fitting portion 15c, which is fitted onto the second guide rail 17b; and a fourth fitting portion 15d, which is fitted onto the fourth guide rail 17d.
  • the third guide rail 17c is disposed on an extension of the second guide rail 17b.
  • the fourth guide rail 17d is disposed on an extension of the first guide rail 17a. That is, the first and fourth guide rails 17a and 17d appear to have been formed by splitting one guide rail in half; the second and third guide rails 17b and 17c also appear to have been formed by splitting one guide rail in half.
  • the reason why the guide rails are formed in such a manner is to allow the first paper guide 15L to be fitted from the tips of the guide rails 17a and 17c, and to allow the second paper guide 15R to be fitted from the tips of the guide rails 17b and 17d, thereby making it easier to attach the paper guides to the guide rails.
  • the space between the tips of the first and fourth guide rails 17a and 17d that face each other, and the space between the tips of the second and third guide rails 17c and 17b that face each other are set wider in width than the paper guides 15L and 15R.
  • the link lever 18 is an elongated plate made of metal or resin.
  • the link lever 18 is placed below the paper roll holder 11.
  • the paper guide mechanism can be mounted without interfering with the layout of other components. As a result, it is possible to realize a compact and lightweight printer.
  • the first paper guide 15L engages with one end of a longitudinal side of the link lever 18.
  • the second paper guide 15R engages with the other end of the longitudinal side of the link lever 18.
  • a central portion of the longitudinal side of the link lever 18 is pivotally supported on the printer body 10 via a rotation shaft 18a.
  • the rotation shaft 18a of the link lever 18 is located at the center of the width direction of the paper roll holder 11. It is more preferred that the rotation shaft 18a of the link lever 18 be located at the center of a front-rear direction that is perpendicular to the width direction of the paper roll holder 11.
  • FIG. 3 is a diagram showing the configuration of a frame of the printer body 10.
  • FIG. 3 is a schematic perspective view showing in detail the configuration of a bottom portion (or a surface that faces the link lever 18) of the printer body 10.
  • FIG. 4 is a schematic cross-sectional view of a plate spring section of the link lever 18 taken along line X-X in FIGS. 2 and 3 .
  • the link lever 18 includes a pair of plate spring sections 18b and 18b, which are formed by partially slitting the link lever 18. While the details will be described later, projections (bosses) 18c that are formed at the tips of the plate spring sections 18b and 18b engage with uneven grooves 10a in a frictional manner; the uneven grooves 10a are formed on a facing surface of the printer body 10. The projections 18c are pressed against the uneven grooves 10a by elastic force of the plate spring sections 18b. As the link lever 18 is rotated, the projections 18c go over peaks of the uneven grooves 10a, thereby giving a user a click feeling when the user slides the paper guides 15L and 15R. Therefore, the user can fine-tune where the paper guides 15L and 15R are fixed.
  • FIG. 5 is a schematic perspective view showing a connecting structure of a pair of paper guides 15L and 15R and the link lever 18.
  • a first engagement pin 15e is provided below the first fitting portion 15a of the first paper guide 15L.
  • a second engagement pin 15f is provided below the third fitting portion 15c of the second paper guide 15R.
  • the first and second engagement pins 15e and 15f engage with long holes 18d (or elongated slits) that are formed in the one end of the link lever 18 and the other end. That is, the first paper guide 15L engages with the one end of the link lever 18 via the first engagement pin 15e; the second paper guide 15R engages with the other end of the link lever 18 via the second engagement pin 15f. As the link lever 18 is rotated, the first and second engagement pins 15e and 15f slide inside the long holes 18d. In this manner, the first and second paper guides 15L and 15R are subjected only to a slide-direction force from the link lever 18.
  • the first and second paper guides 15L and 15R are connected via the link lever 18 as described above. Therefore, one of the paper guides 15L and 15R slides in conjunction with the other.
  • the first paper guide 15L slides in a direction toward the second paper guide 15R
  • the one end of the link lever 18 turns in the same direction as the first paper guide 15L
  • the other end of the link lever 18 turns in a direction toward the first paper guide 15L.
  • the second paper guide 15R slides in the same direction as the other end of the link lever 18.
  • the first paper guide 15L slides in a direction away from the second paper guide 15R
  • the second paper guide 15R slides in a direction away from the first paper guide 15L.
  • the link lever 18 enables the paper guides 15L and 15R to move closer to or away from one another.
  • FIGS. 6A and 6B are diagrams showing relation between the first paper guide 15L and a pair of guide rails 17a and 17c.
  • FIG. 6A is a schematic perspective view
  • FIG. 6B is a schematic side view.
  • the relation between the second paper guide 15R and a pair of guide rails 17b and 17d is identical to the relation between the first paper guide 15L and a pair of guide rails 17a and 17c. Accordingly, only the first paper guide 15L will be described, and the second paper guide 15R will not be described.
  • a knob portion 15g is provided in an upper end portion of the paper guide 15L so as to protrude upward.
  • a user of the printer 1 can adjust the position of the paper guide 15L by holding the knob portion 15g and moving the paper guide 15L.
  • the tip of the knob portion 15g is tapered.
  • the cover 13 is closed, the tip of the knob portion 15g engages with the ratchet sections 13c, and the position of the paper guide 15L is therefore fixed.
  • the cover 13 is opened, the paper guide 15L is automatically unlocked.
  • the paper guide 15L includes the first fitting portion 15a, which is fitted onto one guide rail 17a; and the second fitting portion 15b, which is fitted onto the other guide rail 17c.
  • the first fitting portion 15a is C-shaped (or O-shaped) in cross section so that the first fitting portion 15a cannot be detached from the guide rail 17a in a direction perpendicular to the extending direction of the guide rail 17a; the shape only allows the first fitting portion 15a to slide.
  • the second fitting portion 15b is U-shaped in cross section so that the second fitting portion 15b can be attached to or detached from the guide rail 17c in a direction perpendicular to the extending direction of the guide rail 17c.
  • the paper guide 15L is fixed only to one guide rail 17a in so to be slidable, while the paper guide 15L has play at a position where the paper guide 15L is fitted onto the other guide rail 17c. Therefore, it is possible to support the paper guide 15L in a stable manner while allowing the paper guide 15L to slide smoothly.
  • the link lever 18 is provided so as to extend in a diagonal direction of the paper roll holder 11.
  • the one end of the link lever 18 and the other end are positioned in the front and rear portions of the printer, respectively.
  • the first engagement pin 15e of the first paper guide 15L which is disposed on the left side, is connected to the one end of the link lever 18.
  • the second engagement pin 15f of the second paper guide 15R which is disposed on the right side, is connected to the other end of the link lever 18. That is, the second paper guide 15R is the equivalent of the first paper guide 15L that has turned 180 degrees.
  • the first paper guide 15L and the second paper guide 15R are dyad symmetrical.
  • the paper guides 15L and 15R are identical in shape and have the engagement pins in the same location. According to the configuration of the paper guides, common parts can be used, resulting in a reduction in costs.
  • the printer's paper guide mechanism of the present embodiment includes the link lever 18, which connects the pair of paper guides 15L and 15R.
  • the link lever 18 enables one of the paper guides to slide in conjunction with the other. Therefore, it is possible to realize the simple paper guide mechanism that allows the pair of paper guides to move closer to or away from each other.
  • the user does not have to unlock a locking mechanism through an operation lever or the like.
  • it is possible to provide the paper guide mechanism that is excellent in operability.
  • two guide rails are provided for one paper guide.
  • two guide rails are not necessarily required. Only one guide rail may be provided for one paper guide. That is, there may be the first guide rail 17a, which restricts the movement direction of the first paper guide 15L, and the second guide rail 17b, which restricts the movement direction of the second paper guide 15R.
  • each guide rail is not necessarily required to be formed integrally with the printer body. The guide rails may be added to the printer body later.
  • first and second paper guides 15L and 15R are identical in shape. However, the first and second paper guides 15L and 15R may be different in shape.
  • the frictional engagement between the plate spring portion, which is formed on the link lever, and the uneven surface of the printer body gives a user a click feeling when the user slides the paper guides.
  • a structure is not necessarily required for the present invention.
  • Other methods may be employed to produce a click feeling.

Landscapes

  • Handling Of Continuous Sheets Of Paper (AREA)
  • Unwinding Webs (AREA)
EP15154987.0A 2014-02-13 2015-02-13 Mécanisme de guidage de papier pour imprimante Withdrawn EP2913192A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2014025468A JP2015150754A (ja) 2014-02-13 2014-02-13 プリンタの用紙ガイド機構

Publications (1)

Publication Number Publication Date
EP2913192A1 true EP2913192A1 (fr) 2015-09-02

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP15154987.0A Withdrawn EP2913192A1 (fr) 2014-02-13 2015-02-13 Mécanisme de guidage de papier pour imprimante

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US (1) US20150225198A1 (fr)
EP (1) EP2913192A1 (fr)
JP (1) JP2015150754A (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6481333B2 (ja) * 2014-11-05 2019-03-13 セイコーエプソン株式会社 媒体装填装置、記録装置
JP6787163B2 (ja) * 2017-02-08 2020-11-18 ブラザー工業株式会社 印刷装置
JP6891610B2 (ja) * 2017-04-13 2021-06-18 ブラザー工業株式会社 印刷装置
JP7095369B2 (ja) 2018-04-06 2022-07-05 ブラザー工業株式会社 印刷装置

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6283958A (ja) * 1985-10-04 1987-04-17 Canon Inc 記録装置
JPH0776023B2 (ja) 1992-04-13 1995-08-16 イワキパックス株式会社 仕切体の製造方法及びその装置
JPH082407A (ja) 1994-06-27 1996-01-09 Nakanishi Kinzoku Kogyo Kk 床コンベヤ
US20030170065A1 (en) * 2002-03-08 2003-09-11 Samsung Electro-Mechanics Co., Ltd. Paper holding device for label printer
JP4537541B2 (ja) 2000-06-22 2010-09-01 株式会社サトー プリンタの用紙ホルダ
US20110020044A1 (en) * 2009-07-22 2011-01-27 Tsc Auto Id Technology Co., Ltd. Printing medium clamp mechanism of barcode printer
US20120280101A1 (en) * 2011-05-04 2012-11-08 Source Technologies, Llc Media hanger/guide
JP2013154580A (ja) 2012-01-31 2013-08-15 Sato Holdings Corp プリンタ及びその用紙ガイド機構

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102083630B (zh) * 2008-06-19 2013-12-25 Zih公司 便携式打印机
JP6120070B2 (ja) * 2013-06-24 2017-04-26 ブラザー工業株式会社 印刷装置

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6283958A (ja) * 1985-10-04 1987-04-17 Canon Inc 記録装置
JPH0776023B2 (ja) 1992-04-13 1995-08-16 イワキパックス株式会社 仕切体の製造方法及びその装置
JPH082407A (ja) 1994-06-27 1996-01-09 Nakanishi Kinzoku Kogyo Kk 床コンベヤ
JP4537541B2 (ja) 2000-06-22 2010-09-01 株式会社サトー プリンタの用紙ホルダ
US20030170065A1 (en) * 2002-03-08 2003-09-11 Samsung Electro-Mechanics Co., Ltd. Paper holding device for label printer
US20110020044A1 (en) * 2009-07-22 2011-01-27 Tsc Auto Id Technology Co., Ltd. Printing medium clamp mechanism of barcode printer
US20120280101A1 (en) * 2011-05-04 2012-11-08 Source Technologies, Llc Media hanger/guide
JP2013154580A (ja) 2012-01-31 2013-08-15 Sato Holdings Corp プリンタ及びその用紙ガイド機構

Also Published As

Publication number Publication date
US20150225198A1 (en) 2015-08-13
JP2015150754A (ja) 2015-08-24

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