WO2015001752A1 - Document feeding device and method for assembling document feeding device - Google Patents

Document feeding device and method for assembling document feeding device Download PDF

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Publication number
WO2015001752A1
WO2015001752A1 PCT/JP2014/003322 JP2014003322W WO2015001752A1 WO 2015001752 A1 WO2015001752 A1 WO 2015001752A1 JP 2014003322 W JP2014003322 W JP 2014003322W WO 2015001752 A1 WO2015001752 A1 WO 2015001752A1
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WO
WIPO (PCT)
Prior art keywords
housing base
drive unit
roller shaft
base unit
unit
Prior art date
Application number
PCT/JP2014/003322
Other languages
French (fr)
Japanese (ja)
Inventor
泰一 名倉
Original Assignee
Ｎｅｃプラットフォームズ株式会社
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 Ｎｅｃプラットフォームズ株式会社 filed Critical Ｎｅｃプラットフォームズ株式会社
Priority to CN201480038353.9A priority Critical patent/CN105579372A/en
Priority to US14/897,054 priority patent/US20160114992A1/en
Publication of WO2015001752A1 publication Critical patent/WO2015001752A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/02—Separating articles from piles using friction forces between articles and separator
    • B65H3/06—Rollers or like rotary separators
    • B65H3/0669—Driving devices therefor
    • 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
    • B65H29/16—Delivering or advancing articles from machines; Advancing articles to or into piles by contact of one face only with moving tapes, bands, or chains
    • B65H29/18—Delivering or advancing articles from machines; Advancing articles to or into piles by contact of one face only with moving tapes, bands, or chains and introducing into a pile
    • 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
    • B65H5/06—Feeding articles separated from piles; Feeding articles to machines by rollers or balls, e.g. between rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/16—Details of driving
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2601/00—Problem to be solved or advantage achieved
    • B65H2601/30—Facilitating or easing
    • B65H2601/32—Facilitating or easing entities relating to handling machine
    • B65H2601/324—Removability or inter-changeability of machine parts, e.g. for maintenance
    • 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
    • B65H2801/06—Office-type machines, e.g. photocopiers

Definitions

  • the present invention relates to a document feeder and a method for assembling the document feeder.
  • Patent documents 1 to 3 are disclosed as patent documents disclosing the document feeder.
  • FIG. 8 is a diagram showing a configuration of a related art document feeder.
  • the document feeder includes a housing base unit 4 and a drive unit 6.
  • FIG. 9 is a diagram showing a configuration of the drive unit 6 in the document feeder of the related technology.
  • the drive unit 6 includes a motor 1, a drive transmission system 2, an output shaft 3, and a control device 5.
  • the main function of the document feeder is to feed documents one by one and pass them through the reading unit at a constant speed. This function is realized by transmitting the power to the output shaft 3 by the drive transmission system 2 using the motor 1 as an input shaft.
  • the drive transmission system 2 includes a transmission member such as a gear or a belt. The form and quantity of gears and belts are appropriately changed so as to realize a document conveying speed that matches the reading speed of the apparatus.
  • a rubber roller is attached with a driven gear on the roller shaft.
  • the roller of the output shaft 3 has a pair of driven rollers, and the document is conveyed via friction between the pair of rollers. There are few single rollers used as the output shaft 3, and a plurality of rollers are usually used in combination.
  • rollers There are various uses and functions of these rollers.
  • the roller include a paper feed roller that feeds out the documents one by one, a reading roller that carries stable document conveyance near the reading unit, and a paper discharge roller that is provided in front of the paper discharge tray and kicks out the document.
  • Such various components are incorporated in the apparatus while sharing the mounting space around the casing base unit 4 forming the document transport path.
  • a standard operation is to assemble a gear from the side to the horizontally long casing base unit 4 forming the document transport path. That is, first, one of the two side plates of the drive unit 6 (a in FIG. 9) is attached to the housing base unit 4, and each roller shaft is fixed. Subsequently, a gear is attached to each roller shaft, and fixed with another side plate (b in FIG. 9). Since this is an assembly to the member receiving the output shaft roller, it can be said to be a highly accurate component assembly.
  • the document feeder shown in FIGS. 8 and 9 has the following problems.
  • the work of assembling the gears from the side to the horizontally long casing base unit 4 forming the document transport path is inefficient because the horizontally long casing base unit must be erected.
  • the extra jigs such as a jig for standing up a housing
  • An object of the present invention is to provide a document feeder and a method for assembling a document feeder that solve the above-described problems. Means for solving the problem
  • the document feeder of the present invention is a document feeder having a housing base unit and a drive unit, and the housing base unit has a roller shaft that forms a document transport path and includes a roller and a driven gear.
  • the drive unit has a drive gear that transmits power to the roller shaft and meshes with the driven gear, and the drive gear meshes above or below the driven gear when the drive unit is assembled to the housing base unit. It is characterized by.
  • An assembling method of an original feeding apparatus is an assembling method of an original feeding apparatus having a casing base unit and a drive unit, and the casing base unit forms an original conveying path and includes a roller and a driven gear. It has a roller shaft, the drive unit has a drive gear that transmits power to the roller shaft and meshes with the driven gear, and the drive gear is above the driven gear when the drive unit is assembled to the housing base unit. Alternatively, it has a step of engaging at the lower side and assembling the drive unit to the housing base unit from above or below when engaging.
  • FIG. 1 is a schematic diagram illustrating a configuration of a document feeder 10 according to a first embodiment. It is a perspective view which shows the external appearance of the original feeding apparatus 20 concerning 2nd Embodiment.
  • FIG. 6 is an exploded perspective view illustrating a configuration of a housing base unit 210 of a document feeder 20 according to a second embodiment.
  • FIG. 10 is a schematic diagram illustrating an arrangement of each roller of the document feeder 20 according to the second embodiment. It is a figure which shows the structure of the drive unit 220 of the original feeding apparatus 20 concerning 2nd Embodiment. It is a schematic diagram which shows the structure of the document feeder 20 concerning 2nd Embodiment.
  • FIG. 10 is an exploded perspective view illustrating a configuration of a document feeder 30 according to a third embodiment. It is a figure which shows the structure of the document feeder of related technology. It is a figure which shows the structure of the drive unit 6 of related technology.
  • FIG. 1 is a schematic diagram illustrating a configuration of a document feeder 10 according to the first embodiment, in which the left side indicates the front of the apparatus and the right side indicates the side.
  • the document feeder 10 includes a housing base unit 110 and a drive unit 120.
  • the housing base unit 110 forms a document conveyance path, and has a roller shaft 113 having a roller 111 and a driven gear 112 as an output shaft.
  • the drive unit 120 has a drive gear 121 that transmits power to the roller shaft 113 and meshes with the driven gear 112.
  • the driving gear 121 has a function of meshing with the driven gear 112 and transmitting power to the roller shaft 113 provided with the driven gear 112.
  • the drive gear 121 meshes above the driven gear 112 when the drive unit 120 is assembled to the housing base unit 110.
  • the drive unit 120 is assembled to the casing base unit 110 from above the casing base unit 110.
  • the drive gear 121 meshes above the driven gear 112 when the drive unit 120 is assembled to the housing base unit 110.
  • the drive unit 120 can be assembled to the housing base unit 110 from above.
  • the drive unit 120 is assembled from above the casing base unit 110.
  • the same effect can be obtained by configuring the drive unit 120 from below. That is, the housing base unit 110 may be attached to the drive unit 120 from above.
  • the angle ⁇ is preferably 45 degrees or less from the horizontal.
  • the document feeder 20 Similar to the document feeder 10 according to the first embodiment, the document feeder 20 according to the second embodiment includes a housing base unit 210 and a drive unit 220.
  • FIG. 2 is a perspective view showing the appearance of the document feeder 20.
  • FIG. 3 is an exploded perspective view showing the configuration of the housing base unit 210 of the document feeder 20.
  • FIG. 4 is a schematic diagram showing the arrangement of each roller viewed from the roller axial direction. The arrows in FIG. 4 schematically show the path along which the document is conveyed.
  • the housing base unit 210 includes a roller shaft 213 having a roller 211 and a driven gear 212.
  • the roller 211 includes a paper feed roller 201, a separation roller 202, a reading roller 203, and a paper discharge roller 204.
  • the driven gear 212 includes driven gears 202a, 203a, and 204a. That is, driven gears 202a, 203a, and 204a are provided at the ends of the roller shafts on which the separation roller 202, the reading roller 203, and the paper discharge roller 204 are provided.
  • the paper feed roller 201 is disposed at the upper center of the document feeder 20, and a separation roller 202 that is paired with the paper feed roller 201 is disposed below the paper feed roller 201.
  • the paper feed roller 201 has a function of sending a document to the document transport path.
  • the separation roller 202 has a function of separating the originals one by one from the original bundle by being driven reversely to the feed roller 201. Since this function is a general function, description thereof is omitted here. In addition, there is a case where a pick roller having an auxiliary role of the paper feed roller 201 is employed, but the description is omitted here.
  • the side where the original is inserted is the upstream side
  • the side where the original is discharged is the downstream side.
  • each of the roller shafts of the paper feed roller 201, the separation roller 202, the reading roller 203, and the paper discharge roller 204 is fixed to the housing base unit 210.
  • the roller shaft 213 is drawn above the housing base unit 210, but in reality, only the paper feed roller shaft is positioned above the housing base unit 201, and the other roller shafts are the housing. Located below the base unit.
  • the housing base unit 210 has a positioning portion 214b to which the drive unit 220 is attached and a screw hole 214c for fixing the drive unit.
  • the positioning portion 214b and the drive unit fixing screw hole 214c are provided at two locations in consideration of rotation prevention and height positioning, both of which have shapes corresponding to the drive unit. Thereby, the assembly from the upper direction of the drive unit 220 to the housing base unit 210 can be performed with high accuracy.
  • the housing base unit 210 forms a guide surface 214a on the downstream side of the paper feed roller 201, and forms an original conveyance path together with an upstream guide surface (not shown).
  • the reading roller 203 is arranged on the downstream side of the conveyance path.
  • a new conveyance path is formed so as to make a U-turn around the reading roller 203.
  • the reading roller 203 is provided with one or two sets of driven rollers 203 ′ that are paired with the reading roller 203.
  • the reading roller 203 has a function of conveying a document in the U-turn portion by pressure with the driven roller 203 ′.
  • the reading unit 215 is arranged at a position where the U-turn of the document is finished and the document reaches the lowest point of the apparatus.
  • the reading unit 215 includes a reading device 215a and a transparent glass 215b.
  • the transparent glass 215b serves as a guide for the reading unit 215, and the document passes between the reading device 215a and the transparent glass 215b.
  • a reading unit 215 may be provided on each of the front side and the back side of the document to read both sides of the document simultaneously.
  • a paper discharge roller 204 is disposed on the downstream side of the reading unit 215.
  • the paper discharge roller 204 has a function of discharging and kicking out a document that has been read.
  • a paper discharge tray 216 is provided on the downstream side of the paper discharge roller 204.
  • FIG. 5 is a diagram showing the configuration of the drive unit 220.
  • the drive unit 220 includes a box shape having two frames 280 a and 280 b as a framework, and a motor 222.
  • the box shape has a necessary number of drive gears (gear group) 221 and a gear shaft inside.
  • drive gears gear group
  • a gear shaft By sandwiching the gear group 221 and the gear shaft between the side plates 280a and 280b, rigidity and shaft accuracy can be ensured. As a result, high accuracy of the read image can be realized.
  • a sheet metal is selected in order to ensure rigidity and axial accuracy.
  • the side plates are mounted so that the gears do not shift when the gears are fixed to the roller shafts from the side and fixed by the side plates b of the drive unit 6. It was necessary to slide b. Moreover, the jig
  • the drive unit 220 has a box shape. As a result, it is possible to provide a drive unit that is established as a single unit and is excellent in handling.
  • the gear group 221 includes three drive gears (previous gears) 205, 206, and 207 that mesh with driven gears 202a, 203a, and 204a provided on the separation, reading, and discharge roller shafts.
  • FIG. 6 is a schematic diagram showing the configuration of the document feeder 20.
  • the left side of FIG. 6A shows the front of the apparatus, and the right side shows the side.
  • the gear group 221 meshes above the driven gear 212. That is, as shown in FIGS. 6B1 to 6B3, the drive gears 205, 206, and 207 are meshed with each other above the corresponding driven gear 212.
  • angles ⁇ , ⁇ , and ⁇ formed by the line connecting the center of the gear group 221 (205, 206, 207) and the center of the driven gear 212 are 45 degrees or less. It is preferable. Thereby, for example, compared with the case where the gear group 221 (205, 206, 207) meshes directly above the driven gear 212, the collision of the gear teeth during assembly can be reduced, and the gears can be easily meshed. become.
  • the motor 222 has a function as a drive source.
  • the drive unit 220 transmits drive to the gear group 221 when power is supplied to the motor 222.
  • Drive is transmitted to the roller shaft 213 through a driven gear 212 that meshes with the gear group 221.
  • the gear group 221 is meshed above the driven gear 212 when the drive unit 220 is assembled to the housing base unit 210.
  • the drive unit 220 can be assembled to the housing base unit 210 from above.
  • the document feeder 30 according to the third embodiment has the same configuration as that of the document feeders 10 and 20 according to the first and second embodiments, unless otherwise specified. .
  • FIG. 7 is an exploded perspective view showing the configuration of the document feeder 30.
  • an electromagnetic clutch 323 is provided in the transmission path to the paper feed roller 301.
  • the electromagnetic clutch 323 is included in the drive unit 320, and is located on the same axis as the paper feed roller shaft 301a when the drive unit 320 is assembled to the housing base unit 310. 2 and 5 also show an electromagnetic clutch.
  • the electromagnetic clutch 323 has a function of electrically turning on / off the drive transmission.
  • an electromagnetic clutch 323 is used to control driving / stopping of the paper feed roller 301.
  • An attachment 317 is provided on the paper feed roller shaft 301a. 2 and 3 also show attachments.
  • the attachment 317 divides the paper feed roller shaft 301a into a shaft on which the paper feed roller 301 is provided and a shaft on which the electromagnetic clutch 323 is provided.
  • the shaft on which the paper feed roller 301 is provided can be freely attached and detached while the shaft to which the electromagnetic clutch 323 is attached is fixed to the drive unit 320.
  • the paper feed roller 301 becomes an independent unit that can be periodically replaced for maintenance or the like. In the assembling process, the paper feed roller 301 can be incorporated later without affecting the housing base unit 310 and the drive unit 320.
  • the attachment 317 is provided on the paper feed roller shaft 301a.
  • a shaft that is located in the upper part of the apparatus and easily interferes with assembly that is, a shaft on which the paper feed roller 301 is provided can be independently incorporated later.
  • the drive unit 320 can be assembled to the housing base unit 310 from above.
  • the present invention can be applied to document feeders such as printers, copiers, and fax machines.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)

Abstract

The present invention provides a document feeding device in which it is easy to assemble the parts thereof. This document feeding device comprises a housing base unit and a drive unit. The document feeding device is characterized in that: the housing base unit forms a document transport path, and has a roller shaft provided with a roller and a driven gear; the drive unit transmits power to the roller shaft, and has a drive wheel that meshes with the driven gear; and when the drive unit is assembled to the housing base unit, the drive wheel meshes with the driven gear at a position above or below the same.

Description

原稿送り装置及び原稿送り装置の組み立て方法Document feeder and document feeder assembly method
　本発明は、原稿送り装置及び原稿送り装置の組み立て方法に関する。 The present invention relates to a document feeder and a method for assembling the document feeder.
　原稿送り装置を開示する特許文献としては、特許文献１乃至３がある。 Patent documents 1 to 3 are disclosed as patent documents disclosing the document feeder.
　図８は、関連技術の原稿送り装置の構成を示す図である。原稿送り装置は、筐体ベースユニット４と、駆動ユニット６からなる。 FIG. 8 is a diagram showing a configuration of a related art document feeder. The document feeder includes a housing base unit 4 and a drive unit 6.
　図９は、上記関連技術の原稿送り装置における駆動ユニット６の構成を示す図である。駆動ユニット６は、モータ１、駆動伝達システム２、出力軸３、制御デバイス５からなる。 FIG. 9 is a diagram showing a configuration of the drive unit 6 in the document feeder of the related technology. The drive unit 6 includes a motor 1, a drive transmission system 2, an output shaft 3, and a control device 5.
　原稿送り装置の主な機能は、原稿を１枚ずつ給紙し、一定の速度で読取部を通過させることである。当該機能は、モータ１を入力軸とした駆動伝達システム２によってその動力が出力軸３に伝えられることで実現される。駆動伝達システム２は、歯車やベルトなどの伝達部材により構成される。歯車やベルトの形態や数量などは、装置の読取速度に合った原稿の搬送速度を実現するように適宜変更される。出力軸３としては、ゴムローラがローラ軸に従動歯車を有して取り付けられている。出力軸３のローラには対となる従動ローラが存在し、当該ローラ対間の摩擦を介して原稿が搬送される。出力軸３として用いられるローラは単一であることが少なく、通常は複数を組み合わせて用いられる。これらローラの用途及び機能は様々である。ローラとしては、例えば原稿を１枚ずつ繰り出す給紙ローラ、読取部付近の安定した原稿搬送を担う読取ローラ、排紙トレイ手前に設けられ原稿を蹴り出す排紙ローラなどが挙げられる。 The main function of the document feeder is to feed documents one by one and pass them through the reading unit at a constant speed. This function is realized by transmitting the power to the output shaft 3 by the drive transmission system 2 using the motor 1 as an input shaft. The drive transmission system 2 includes a transmission member such as a gear or a belt. The form and quantity of gears and belts are appropriately changed so as to realize a document conveying speed that matches the reading speed of the apparatus. As the output shaft 3, a rubber roller is attached with a driven gear on the roller shaft. The roller of the output shaft 3 has a pair of driven rollers, and the document is conveyed via friction between the pair of rollers. There are few single rollers used as the output shaft 3, and a plurality of rollers are usually used in combination. There are various uses and functions of these rollers. Examples of the roller include a paper feed roller that feeds out the documents one by one, a reading roller that carries stable document conveyance near the reading unit, and a paper discharge roller that is provided in front of the paper discharge tray and kicks out the document.
　このような多様な構成物は、原稿搬送路を形成する筐体ベースユニット４を中心に実装スペースを共有しながら装置内部に組み込まれている。 Such various components are incorporated in the apparatus while sharing the mounting space around the casing base unit 4 forming the document transport path.
　伝達経路を形成する駆動ユニット６の組み立てにおいては、数多くの歯車を複数の出力軸に向けて規則正しく並べる作業や、伝達経路の中間に制御デバイス５を配置しハーネス処理をする作業があり、組み立てを困難にする要因となっている。そして、組み立て作業において不具合があると駆動ユニット６の伝達にムラが生じ、この伝達のムラが読み取り画のムラに直結する。すなわち、駆動ユニット６の伝達に関わる精度が原稿の読取品質に直接影響を及ぼすため、高精度な組み立てが要求されることになる。 In the assembly of the drive unit 6 that forms the transmission path, there are an operation of regularly arranging a large number of gears toward a plurality of output shafts, and an operation of arranging the control device 5 in the middle of the transmission path to perform harness processing. It is a factor that makes it difficult. If there is a problem in the assembling work, unevenness in transmission of the drive unit 6 occurs, and this unevenness in transmission directly leads to unevenness in the read image. That is, since the accuracy related to the transmission of the drive unit 6 directly affects the reading quality of the original, high-precision assembly is required.
　図８及び図９に示す原稿送り装置においては、原稿搬送路を形成する横長の筐体ベースユニット４に対し真横より歯車を組み付ける作業が標準となっている。すなわち、まず駆動ユニット６の２枚の側板のうち１枚（図９のａ）を筐体ベースユニット４に取り付け、各ローラ軸を固定する。続いて各ローラ軸に歯車を取り付け、もう１枚の側板（図９のｂ）ではさんで固定する。これは、出力軸ローラを受けている部材への組み付けとなるため、精度の高い部品組み付けといえる。 In the document feeder shown in FIGS. 8 and 9, a standard operation is to assemble a gear from the side to the horizontally long casing base unit 4 forming the document transport path. That is, first, one of the two side plates of the drive unit 6 (a in FIG. 9) is attached to the housing base unit 4, and each roller shaft is fixed. Subsequently, a gear is attached to each roller shaft, and fixed with another side plate (b in FIG. 9). Since this is an assembly to the member receiving the output shaft roller, it can be said to be a highly accurate component assembly.
特開２０１２－１８０２１７JP2012-180217 特開２００９－１８２９４９JP2009-182949 特開２００４－０２６５００JP-A-2004-026500
　しかし、図８及び図９に示す原稿送り装置には次の問題点があった。すなわち、原稿搬送路を形成する横長の筐体ベースユニット４に対し真横より歯車を組み付ける作業は、横長の筐体ベースユニットを立てて作業を行わなければならない等効率性を欠くものであった。また、当該作業を行うにあたり、筐体を立たせておくための冶具等余計な治具が必要であった。 However, the document feeder shown in FIGS. 8 and 9 has the following problems. In other words, the work of assembling the gears from the side to the horizontally long casing base unit 4 forming the document transport path is inefficient because the horizontally long casing base unit must be erected. Moreover, when performing the said operation | work, the extra jigs, such as a jig for standing up a housing | casing, were required.
　本発明の目的は、上述の課題を解決する原稿送り装置及び原稿送り装置の組み立て方法を提供することにある。
課題を解決するための手段 An object of the present invention is to provide a document feeder and a method for assembling a document feeder that solve the above-described problems.
Means for solving the problem
　本発明の原稿送り装置は、筐体ベースユニットと駆動ユニットとを有する原稿送り装置であって、筐体ベースユニットは原稿搬送路を形成し、ローラと従動歯車とをそなえるローラ軸を有し、駆動ユニットはローラ軸に動力を伝達し、従動歯車に噛合する駆動歯車を有し、駆動歯車は、筐体ベースユニットに駆動ユニットが組み付けられた際に従動歯車よりも上方または下方で噛合することを特徴とする。 The document feeder of the present invention is a document feeder having a housing base unit and a drive unit, and the housing base unit has a roller shaft that forms a document transport path and includes a roller and a driven gear. The drive unit has a drive gear that transmits power to the roller shaft and meshes with the driven gear, and the drive gear meshes above or below the driven gear when the drive unit is assembled to the housing base unit. It is characterized by.
　本発明の原稿送り装置の組み立て方法は、筐体ベースユニットと駆動ユニットとを有する原稿送り装置の組み立て方法であって、筐体ベースユニットは原稿搬送路を形成し、ローラと従動歯車とをそなえるローラ軸を有し、駆動ユニットはローラ軸に動力を伝達し、従動歯車に噛合する駆動歯車を有し、駆動歯車は、筐体ベースユニットに駆動ユニットが組み付けられた際に従動歯車よりも上方または下方で噛合し、噛合に際し、筐体ベースユニットに駆動ユニットを上方向または下方向から組み付けるステップを有することを特徴とする。 An assembling method of an original feeding apparatus according to the present invention is an assembling method of an original feeding apparatus having a casing base unit and a drive unit, and the casing base unit forms an original conveying path and includes a roller and a driven gear. It has a roller shaft, the drive unit has a drive gear that transmits power to the roller shaft and meshes with the driven gear, and the drive gear is above the driven gear when the drive unit is assembled to the housing base unit. Alternatively, it has a step of engaging at the lower side and assembling the drive unit to the housing base unit from above or below when engaging.
　本発明によれば、部品の組み立てが容易な原稿送り装置及び原稿送り装置の組み立て方法を提供することができる。 According to the present invention, it is possible to provide a document feeding device and a method for assembling the document feeding device in which parts can be easily assembled.
第１の実施形態にかかる原稿送り装置１０の構成を示す模式図である。1 is a schematic diagram illustrating a configuration of a document feeder 10 according to a first embodiment. 第２の実施形態にかかる原稿送り装置２０の外観を示す斜視図である。It is a perspective view which shows the external appearance of the original feeding apparatus 20 concerning 2nd Embodiment. 第２の実施形態にかかる原稿送り装置２０の筐体ベースユニット２１０の構成を示す分解斜視図である。FIG. 6 is an exploded perspective view illustrating a configuration of a housing base unit 210 of a document feeder 20 according to a second embodiment. 第２の実施形態にかかる原稿送り装置２０の各ローラの配置を示す模式図である。FIG. 10 is a schematic diagram illustrating an arrangement of each roller of the document feeder 20 according to the second embodiment. 第２の実施形態にかかる原稿送り装置２０の駆動ユニット２２０の構成を示す図である。It is a figure which shows the structure of the drive unit 220 of the original feeding apparatus 20 concerning 2nd Embodiment. 第２の実施形態にかかる原稿送り装置２０の構成を示す模式図である。It is a schematic diagram which shows the structure of the document feeder 20 concerning 2nd Embodiment. 第３の実施形態にかかる原稿送り装置３０の構成を示す分解斜視図である。FIG. 10 is an exploded perspective view illustrating a configuration of a document feeder 30 according to a third embodiment. 関連技術の原稿送り装置の構成を示す図である。It is a figure which shows the structure of the document feeder of related technology. 関連技術の駆動ユニット６の構成を示す図である。It is a figure which shows the structure of the drive unit 6 of related technology.
［第１の実施形態］
　図１は、第１の実施形態にかかる原稿送り装置１０の構成を示す模式図で、左側は装置正面、右側は側面を示す。 [First Embodiment]
FIG. 1 is a schematic diagram illustrating a configuration of a document feeder 10 according to the first embodiment, in which the left side indicates the front of the apparatus and the right side indicates the side.
　原稿送り装置１０は、筐体ベースユニット１１０と駆動ユニット１２０とを含んで構成される。 The document feeder 10 includes a housing base unit 110 and a drive unit 120.
　筐体ベースユニット１１０は原稿搬送路を形成し、ローラ１１１と従動歯車１１２とをそなえるローラ軸１１３を出力軸として有する。 The housing base unit 110 forms a document conveyance path, and has a roller shaft 113 having a roller 111 and a driven gear 112 as an output shaft.
　駆動ユニット１２０はローラ軸１１３に動力を伝達し、従動歯車１１２に噛合する駆動歯車１２１を有する。 The drive unit 120 has a drive gear 121 that transmits power to the roller shaft 113 and meshes with the driven gear 112.
　駆動歯車１２１は、従動歯車１１２に噛合し、従動歯車１１２が設けられたローラ軸１１３に動力を伝達する機能を有する。駆動歯車１２１は、筐体ベースユニット１１０に駆動ユニット１２０が組み付けられた際に、従動歯車１１２よりも上方で噛合している。 The driving gear 121 has a function of meshing with the driven gear 112 and transmitting power to the roller shaft 113 provided with the driven gear 112. The drive gear 121 meshes above the driven gear 112 when the drive unit 120 is assembled to the housing base unit 110.
　組み立て動作としては、駆動ユニット１２０は、筐体ベースユニット１１０の上方向から筐体ベースユニット１１０に組み付けられる。 As an assembling operation, the drive unit 120 is assembled to the casing base unit 110 from above the casing base unit 110.
　第１の実施形態にかかる原稿送り装置１０によれば、筐体ベースユニット１１０に駆動ユニット１２０が組み付けられた際に、駆動歯車１２１が従動歯車１１２よりも上方で噛合している。これにより、筐体ベースユニット１１０に対して上方向から駆動ユニット１２０を組み付けることが可能となる。この結果、部品の組み立てが容易な原稿送り装置を提供することができる。 According to the document feeder 10 according to the first embodiment, the drive gear 121 meshes above the driven gear 112 when the drive unit 120 is assembled to the housing base unit 110. As a result, the drive unit 120 can be assembled to the housing base unit 110 from above. As a result, it is possible to provide a document feeder that facilitates assembly of parts.
［変形例］
　筐体ベースユニット１１０に駆動ユニット１２０が組み付けられた際に、駆動歯車１２１が従動歯車１１２よりも斜め上方で噛合することが望ましい。さらには、図１において駆動歯車１２１の中心と従動歯車１１２の中心を結ぶ線が水平となす角θが４５度以下であることが好ましい。これにより、例えば駆動歯車１２１が従動歯車１１２の真上で噛合する場合に比べて組み立て時における歯車の歯同士の衝突を軽減することができ、歯車同士の噛合が容易になる。 [Modification]
When the drive unit 120 is assembled to the housing base unit 110, it is desirable that the drive gear 121 meshes obliquely above the driven gear 112. Furthermore, it is preferable that an angle θ formed by a line connecting the center of the drive gear 121 and the center of the driven gear 112 in FIG. 1 is 45 degrees or less. Thereby, compared with the case where the drive gear 121 meshes directly above the driven gear 112, for example, the collision of the gear teeth during assembly can be reduced, and the gears can be easily meshed.
　また、上記説明では、筐体ベースユニット１１０の上方向から駆動ユニット１２０を組み付けるように構成しているが、同様に下方向から組み付けるように構成しても同様の効果が得られる。すなわち、駆動ユニット１２０に対して筐体ベースユニット１１０を上方向から取り付けてもよい。この場合の角度θは水平から下側４５度以下であることが望ましい。 In the above description, the drive unit 120 is assembled from above the casing base unit 110. However, the same effect can be obtained by configuring the drive unit 120 from below. That is, the housing base unit 110 may be attached to the drive unit 120 from above. In this case, the angle θ is preferably 45 degrees or less from the horizontal.
［第２の実施形態］
　第２の実施形態にかかる原稿送り装置２０は、第１の実施形態にかかる原稿送り装置１０と同様、筐体ベースユニット２１０と駆動ユニット２２０とを含んで構成される。 [Second Embodiment]
Similar to the document feeder 10 according to the first embodiment, the document feeder 20 according to the second embodiment includes a housing base unit 210 and a drive unit 220.
　図２は、原稿送り装置２０の外観を示す斜視図である。図３は、原稿送り装置２０の筐体ベースユニット２１０の構成を示す分解斜視図である。図４は、ローラ軸方向から見た各ローラの配置を示す模式図である。図４における矢印は、原稿が搬送される経路を模式的に示している。 FIG. 2 is a perspective view showing the appearance of the document feeder 20. FIG. 3 is an exploded perspective view showing the configuration of the housing base unit 210 of the document feeder 20. FIG. 4 is a schematic diagram showing the arrangement of each roller viewed from the roller axial direction. The arrows in FIG. 4 schematically show the path along which the document is conveyed.
　筐体ベースユニット２１０は、ローラ２１１と従動歯車２１２とを有するローラ軸２１３を含んで構成される。ローラ２１１には、給紙ローラ２０１、分離ローラ２０２、読取ローラ２０３、排紙ローラ２０４が含まれる。また、従動歯車２１２には、従動歯車２０２ａ、２０３ａ、２０４ａが含まれる。すなわち、分離ローラ２０２、読取ローラ２０３、排紙ローラ２０４が設けられた各ローラ軸の端部には、従動歯車２０２ａ、２０３ａ、２０４ａを設けている。 The housing base unit 210 includes a roller shaft 213 having a roller 211 and a driven gear 212. The roller 211 includes a paper feed roller 201, a separation roller 202, a reading roller 203, and a paper discharge roller 204. The driven gear 212 includes driven gears 202a, 203a, and 204a. That is, driven gears 202a, 203a, and 204a are provided at the ends of the roller shafts on which the separation roller 202, the reading roller 203, and the paper discharge roller 204 are provided.
　筐体ベースユニット２１０への各ローラ軸の取付けについては、一般的な手法が用いられるため、ここでは説明を割愛する。 Since a general method is used for attaching each roller shaft to the housing base unit 210, description thereof is omitted here.
　給紙ローラ２０１は、原稿送り装置２０の上部中央に配置され、その下には給紙ローラ２０１と対となる分離ローラ２０２が配置されている。給紙ローラ２０１は、原稿搬送路に原稿を送り出す機能を有する。 The paper feed roller 201 is disposed at the upper center of the document feeder 20, and a separation roller 202 that is paired with the paper feed roller 201 is disposed below the paper feed roller 201. The paper feed roller 201 has a function of sending a document to the document transport path.
　分離ローラ２０２は、給紙ローラ２０１と逆回転の駆動を受け、原稿束から１枚ずつ原稿を剥離する機能を有する。当該機能は一般的な機能であるため、ここでは説明を割愛する。また、給紙ローラ２０１の補助的な役割をもつピックローラを採用するケースもあるが、ここでは説明を割愛する。 The separation roller 202 has a function of separating the originals one by one from the original bundle by being driven reversely to the feed roller 201. Since this function is a general function, description thereof is omitted here. In addition, there is a case where a pick roller having an auxiliary role of the paper feed roller 201 is employed, but the description is omitted here.
　ここで、原稿を挿入する側を上流側とし、原稿を排出する側を下流側とする。 Here, the side where the original is inserted is the upstream side, and the side where the original is discharged is the downstream side.
　給紙ローラ２０１、分離ローラ２０２、読取ローラ２０３、排紙ローラ２０４のそれぞれのローラ軸の少なくとも一端は、筐体ベースユニット２１０に固定されている。図３では、ローラ軸２１３を筐体ベースユニット２１０の上方に描いてあるが、実際には、給紙ローラ軸だけが筐体ベースユニット２０１の上側に位置し、それ以外のローラ軸は筐体ベースユニットの下側に位置する。 At least one end of each of the roller shafts of the paper feed roller 201, the separation roller 202, the reading roller 203, and the paper discharge roller 204 is fixed to the housing base unit 210. In FIG. 3, the roller shaft 213 is drawn above the housing base unit 210, but in reality, only the paper feed roller shaft is positioned above the housing base unit 201, and the other roller shafts are the housing. Located below the base unit.
　筐体ベースユニット２１０は、駆動ユニット２２０を取り付ける位置決め部２１４ｂと駆動ユニット固定用ネジ穴２１４ｃとを有する。位置決め部２１４ｂ及び駆動ユニット固定用ネジ穴２１４ｃは、回転防止と高さ位置出しを考慮してそれぞれ２箇所設けられており、いずれも駆動ユニットと対応する形状である。これにより、筐体ベースユニット２１０への駆動ユニット２２０の上方向からの組み付けを精度良く行うことができる。 The housing base unit 210 has a positioning portion 214b to which the drive unit 220 is attached and a screw hole 214c for fixing the drive unit. The positioning portion 214b and the drive unit fixing screw hole 214c are provided at two locations in consideration of rotation prevention and height positioning, both of which have shapes corresponding to the drive unit. Thereby, the assembly from the upper direction of the drive unit 220 to the housing base unit 210 can be performed with high accuracy.
　筐体ベースユニット２１０は、給紙ローラ２０１より下流側のガイド面２１４ａを形成し、図示されていない上流側のガイド面と共に原稿搬送路を形成する。 The housing base unit 210 forms a guide surface 214a on the downstream side of the paper feed roller 201, and forms an original conveyance path together with an upstream guide surface (not shown).
　読取ローラ２０３は、搬送路の下流側に配置される。読取ローラ２０３の周囲をＵターンするように新たな搬送路が形成される。搬送路をＵターンさせることにより、給紙手前の待機原稿下側領域を原稿排紙スペースとして活用することができ、装置を小型化することができる。図４に示すように、読取ローラ２０３には、読取ローラ２０３と対となる従動ローラ２０３’が１組ないし２組円周上に配置されている。読取ローラ２０３は、従動ローラ２０３’との圧力によりＵターン部において原稿を搬送する機能を有する。 The reading roller 203 is arranged on the downstream side of the conveyance path. A new conveyance path is formed so as to make a U-turn around the reading roller 203. By making the conveyance path U-turn, it is possible to use the lower area of the waiting document before the sheet feeding as the document discharge space, and to reduce the size of the apparatus. As shown in FIG. 4, the reading roller 203 is provided with one or two sets of driven rollers 203 ′ that are paired with the reading roller 203. The reading roller 203 has a function of conveying a document in the U-turn portion by pressure with the driven roller 203 ′.
　原稿のＵターンが終了し、原稿が装置の最下点に到達した位置に、読取部２１５が配置されている。読取部２１５は、読取デバイス２１５ａと透明ガラス２１５ｂとを含む。透明ガラス２１５ｂが読取部２１５のガイドの役目を果たし、読取デバイス２１５ａと透明ガラス２１５ｂとの間を原稿が通過する。なお、原稿の表面側及び裏面側のそれぞれに読取部２１５を設けて原稿の両面を同時に読み取ってもよい。 The reading unit 215 is arranged at a position where the U-turn of the document is finished and the document reaches the lowest point of the apparatus. The reading unit 215 includes a reading device 215a and a transparent glass 215b. The transparent glass 215b serves as a guide for the reading unit 215, and the document passes between the reading device 215a and the transparent glass 215b. Note that a reading unit 215 may be provided on each of the front side and the back side of the document to read both sides of the document simultaneously.
　読取部２１５の下流側には、排紙ローラ２０４が配置されている。排紙ローラ２０４は、読み取り終わった原稿を排出し、蹴り出す機能を有する。 A paper discharge roller 204 is disposed on the downstream side of the reading unit 215. The paper discharge roller 204 has a function of discharging and kicking out a document that has been read.
　排紙ローラ２０４の下流側には、排紙トレイ２１６が設けられている。 A paper discharge tray 216 is provided on the downstream side of the paper discharge roller 204.
　図５は、駆動ユニット２２０の構成を示す図である。駆動ユニット２２０は、２枚の側板２８０ａ、２８０ｂを骨組みとした箱型形状とモータ２２２とからなる。当該箱型形状は、内部に必要数の駆動歯車（歯車群）２２１と歯車軸を有する。両側板２８０ａ、２８０ｂで歯車群２２１と歯車軸を挟むことにより、剛性と軸精度を確保することができる。この結果、読み取り画の高い精度を実現することができる。また、側板２８０ａ、２８０ｂの材質としては、剛性と軸精度を確保するために板金が選定される。 FIG. 5 is a diagram showing the configuration of the drive unit 220. The drive unit 220 includes a box shape having two frames 280 a and 280 b as a framework, and a motor 222. The box shape has a necessary number of drive gears (gear group) 221 and a gear shaft inside. By sandwiching the gear group 221 and the gear shaft between the side plates 280a and 280b, rigidity and shaft accuracy can be ensured. As a result, high accuracy of the read image can be realized. Further, as a material for the side plates 280a and 280b, a sheet metal is selected in order to ensure rigidity and axial accuracy.
　図８及び図９に示した原稿送り装置においては、上述の課題とは別に、各ローラ軸に歯車を真横から取り付け駆動ユニット６の側板ｂで固定する際各歯車がずれないよう注意しながら側板ｂをスライドさせる必要があった。また、当該側板ｂをスライドさせるための治具が必要であった。これに対し、本実施の形態にかかる原稿送り装置２０においては、駆動ユニット２２０を箱型形状とした。これにより、単独ユニットとして成立し取り扱いに優れた駆動ユニットを提供することができる。 In the document feeder shown in FIGS. 8 and 9, apart from the above-mentioned problems, the side plates are mounted so that the gears do not shift when the gears are fixed to the roller shafts from the side and fixed by the side plates b of the drive unit 6. It was necessary to slide b. Moreover, the jig | tool for sliding the said side plate b was required. In contrast, in the document feeder 20 according to the present embodiment, the drive unit 220 has a box shape. As a result, it is possible to provide a drive unit that is established as a single unit and is excellent in handling.
　歯車群２２１は、分離、読取、排紙の各ローラ軸に設けられた従動歯車２０２ａ、２０３ａ、２０４ａに噛合する３つの駆動歯車（前段歯車）２０５、２０６、２０７を含んでいる。 The gear group 221 includes three drive gears (previous gears) 205, 206, and 207 that mesh with driven gears 202a, 203a, and 204a provided on the separation, reading, and discharge roller shafts.
　図６は、原稿送り装置２０の構成を示す模式図で、図６（ａ）の左側は装置正面、右側は側面を示す。図６（ａ）に示すように、筐体ベースユニット２１０に駆動ユニット２２０が組み付けられた際に、歯車群２２１は、従動歯車２１２よりも上方で噛合している。すなわち、図６（ｂ１）乃至（ｂ３）に示すように、駆動歯車２０５、２０６、２０７のそれぞれが対応する従動歯車２１２よりも上方で噛合している。 FIG. 6 is a schematic diagram showing the configuration of the document feeder 20. The left side of FIG. 6A shows the front of the apparatus, and the right side shows the side. As shown in FIG. 6A, when the drive unit 220 is assembled to the housing base unit 210, the gear group 221 meshes above the driven gear 212. That is, as shown in FIGS. 6B1 to 6B3, the drive gears 205, 206, and 207 are meshed with each other above the corresponding driven gear 212.
　歯車群２２１は、筐体ベースユニット２１０に駆動ユニット２２０が組み付けられた際に従動歯車２１２よりも斜め上方で噛合することが望ましい。さらには、図６（ｂ１）乃至（ｂ３）において歯車群２２１（２０５、２０６、２０７）の中心と従動歯車２１２の中心を結ぶ線が水平となす角α、β、γが４５度以下であることが好ましい。これにより、例えば歯車群２２１（２０５、２０６、２０７）が従動歯車２１２の真上で噛合する場合に比べて組み立て時における歯車の歯同士の衝突を軽減することができ、歯車同士の噛合が容易になる。 It is desirable that the gear group 221 mesh obliquely above the driven gear 212 when the drive unit 220 is assembled to the housing base unit 210. Furthermore, in FIGS. 6B1 to 6B3, angles α, β, and γ formed by the line connecting the center of the gear group 221 (205, 206, 207) and the center of the driven gear 212 are 45 degrees or less. It is preferable. Thereby, for example, compared with the case where the gear group 221 (205, 206, 207) meshes directly above the driven gear 212, the collision of the gear teeth during assembly can be reduced, and the gears can be easily meshed. become.
　モータ２２２は、駆動源としての機能を有する。駆動ユニット２２０は、モータ２２２に電力が供給されると歯車群２２１に駆動伝達を行う。そして、歯車群２２１に噛合する従動歯車２１２を介してローラ軸２１３に駆動伝達がなされる。 The motor 222 has a function as a drive source. The drive unit 220 transmits drive to the gear group 221 when power is supplied to the motor 222. Drive is transmitted to the roller shaft 213 through a driven gear 212 that meshes with the gear group 221.
　第２の実施形態にかかる原稿送り装置２０によれば、筐体ベースユニット２１０に駆動ユニット２２０が組み付けられた際に、歯車群２２１が従動歯車２１２よりも上方で噛合している。これにより、筐体ベースユニット２１０に対して上方向から駆動ユニット２２０を組み付けることが可能となる。この結果、部品の組み立てが容易な原稿送り装置を提供することができる。 According to the document feeder 20 according to the second embodiment, the gear group 221 is meshed above the driven gear 212 when the drive unit 220 is assembled to the housing base unit 210. As a result, the drive unit 220 can be assembled to the housing base unit 210 from above. As a result, it is possible to provide a document feeder that facilitates assembly of parts.
［第３の実施形態］
　第３の実施形態にかかる原稿送り装置３０は、以下、特に説明のない構成については、第１及び第２の実施形態にかかる原稿送り装置１０、２０における構成と同様の構成を有するものとする。 [Third Embodiment]
The document feeder 30 according to the third embodiment has the same configuration as that of the document feeders 10 and 20 according to the first and second embodiments, unless otherwise specified. .
　図７は、原稿送り装置３０の構成を示す分解斜視図である。 FIG. 7 is an exploded perspective view showing the configuration of the document feeder 30.
　本実施形態における原稿送り装置３０において、給紙ローラ３０１への伝達経路には電磁クラッチ３２３が設けられる。電磁クラッチ３２３は駆動ユニット３２０に含まれ、駆動ユニット３２０を筐体ベースユニット３１０に組み付けた際に給紙ローラ軸３０１ａと同一軸上に位置する。なお、図２及び図５においても電磁クラッチが示されている。 In the document feeder 30 in the present embodiment, an electromagnetic clutch 323 is provided in the transmission path to the paper feed roller 301. The electromagnetic clutch 323 is included in the drive unit 320, and is located on the same axis as the paper feed roller shaft 301a when the drive unit 320 is assembled to the housing base unit 310. 2 and 5 also show an electromagnetic clutch.
　電磁クラッチ３２３は、電気的に駆動伝達の入／切を行う機能を有する。本実施形態では、給紙ローラ３０１の駆動／停止を制御するために電磁クラッチ３２３を用いる。 The electromagnetic clutch 323 has a function of electrically turning on / off the drive transmission. In the present embodiment, an electromagnetic clutch 323 is used to control driving / stopping of the paper feed roller 301.
　給紙ローラ軸３０１ａには、アタッチメント３１７が設けられる。なお、図２及び図３においてもアタッチメントが示されている。アタッチメント３１７は、給紙ローラ軸３０１ａを給紙ローラ３０１が設けられる軸と電磁クラッチ３２３が設けられる軸とに分割する。これにより、電磁クラッチ３２３を取り付ける軸を駆動ユニット３２０に固定したまま給紙ローラ３０１が設けられる軸を自由に着脱することができる。この結果、給紙ローラ３０１は保守などでの定期交換が可能な独立ユニットとなる。また、組み立て工程においても、筐体ベースユニット３１０と駆動ユニット３２０に影響を与えることなく給紙ローラ３０１を単独で後から組み込むことが可能となる。 An attachment 317 is provided on the paper feed roller shaft 301a. 2 and 3 also show attachments. The attachment 317 divides the paper feed roller shaft 301a into a shaft on which the paper feed roller 301 is provided and a shaft on which the electromagnetic clutch 323 is provided. Thus, the shaft on which the paper feed roller 301 is provided can be freely attached and detached while the shaft to which the electromagnetic clutch 323 is attached is fixed to the drive unit 320. As a result, the paper feed roller 301 becomes an independent unit that can be periodically replaced for maintenance or the like. In the assembling process, the paper feed roller 301 can be incorporated later without affecting the housing base unit 310 and the drive unit 320.
　第３の実施形態にかかる原稿送り装置３０によれば、給紙ローラ軸３０１ａにアタッチメント３１７が設けられている。これにより、装置上部に位置し組み立ての邪魔になりやすい軸、すなわち給紙ローラ３０１が設けられる軸を単独で後から組み込むことができる。この結果、駆動ユニット３２０を筐体ベースユニット３１０に対して上方向から組み付けることが可能となる。 According to the document feeder 30 according to the third embodiment, the attachment 317 is provided on the paper feed roller shaft 301a. As a result, a shaft that is located in the upper part of the apparatus and easily interferes with assembly, that is, a shaft on which the paper feed roller 301 is provided can be independently incorporated later. As a result, the drive unit 320 can be assembled to the housing base unit 310 from above.
　以上、本発明の実施形態について説明したが、本発明は上記実施形態に限定されるものではなく、本発明の趣旨を逸脱しない限りにおいて他の変形例、応用例を含むことは言うまでもない。
　本願発明は、２０１３年７月４日に出願された日本出願特願２０１３－１４０５７９を基礎とする優先権を主張し、その開示の全てをここに取り込む。 As mentioned above, although embodiment of this invention was described, this invention is not limited to the said embodiment, It cannot be overemphasized that another modification and an application example are included unless it deviates from the meaning of this invention.
This invention claims the priority on the basis of Japanese application Japanese Patent Application No. 2013-140579 for which it applied on July 4, 2013, and takes in those the indications of all here.
　本発明はプリンター、コピー機、ＦＡＸ等の原稿送り装置に適用することができる。 The present invention can be applied to document feeders such as printers, copiers, and fax machines.
　１０、２０、３０　　原稿送り装置
　１１０、２１０、３１０　　筐体ベースユニット
　１１１、２１１　　ローラ
　１１２、２１２　　従動歯車
　１１３、２１３　　ローラ軸
　１２０、２２０、３２０　　駆動ユニット
　２０１、３０１　　給紙ローラ
　２０２　　分離ローラ
　２０３　　読取ローラ
　２０３’　　従動ローラ
　２０４　　排紙ローラ
　２０２ａ、２０３ａ、２０４ａ　　従動歯車
　２０５、２０６、２０７　　駆動歯車
　２１４ａ　　ガイド面
　２１４ｂ　　位置決め部
　２１４ｃ　　駆動ユニット固定用ネジ穴
　２１５　　読取部
　２１５ａ　　読取デバイス
　２１５ｂ　　透明ガラス
　１２１　　駆動歯車
　２２１　　歯車群
　２２２　　モータ
　２８０ａ、２８０ｂ　　側板
　３０１ａ　　給紙ローラ軸
　３１７　　アタッチメント
　３２３　　電磁クラッチ
　１　　モータ
　２　　駆動伝達システム
　３　　出力軸
　４　　筐体ベースユニット
　５　　制御デバイス
　６　　駆動ユニット
　ａ、ｂ　　側板 10, 20, 30 Document feeder 110, 210, 310 Housing base unit 111, 211 Roller 112, 212 Drive gear 113, 213 Roller shaft 120, 220, 320 Drive unit 201, 301 Paper feed roller 202 Separation roller 203 Reading roller 203 'driven roller 204 discharge roller 202a, 203a, 204a driven gear 205, 206, 207 driving gear 214a guide surface 214b positioning unit 214c driving unit fixing screw hole 215 reading unit 215a reading device 215b transparent glass 121 driving gear 221 gear group 222 Motor 280a, 280b Side plate 301a Feed roller shaft 317 Attachment 323 Electromagnetic clutch 1 Motor 2 Drive transmission system 3 Output shaft 4 Housing base unit 5 control device 6 drive unit a, b side plates

Claims (9)

  1. 　筐体ベースユニットと駆動ユニットとを有する原稿送り装置であって、前記筐体ベースユニットは原稿搬送路を形成し、ローラと従動歯車とをそなえるローラ軸を有し、前記駆動ユニットは前記ローラ軸に動力を伝達し、前記従動歯車に噛合する駆動歯車を有し、前記駆動歯車は、前記筐体ベースユニットに前記駆動ユニットが組み付けられた際に前記従動歯車よりも上方または下方で噛合することを特徴とする原稿送り装置。 An original feeding apparatus having a housing base unit and a driving unit, wherein the housing base unit has a roller shaft that forms a document conveying path and includes a roller and a driven gear, and the driving unit includes the roller shaft. And a drive gear that meshes with the driven gear, and the drive gear meshes above or below the driven gear when the drive unit is assembled to the housing base unit. A document feeder characterized by.
  2. 　前記駆動歯車は、前記筐体ベースユニットに前記駆動ユニットが組み付けられた際に前記従動歯車よりも斜め上方または斜め下方で噛合する、請求項１に記載の原稿送り装置。 2. The document feeding device according to claim 1, wherein the drive gear meshes obliquely above or obliquely below the driven gear when the drive unit is assembled to the housing base unit.
  3. 　前記駆動歯車は、前記筐体ベースユニットに前記駆動ユニットが組み付けられた際に前記従動歯車に対し水平から上側または下側に４５度以下の角度で噛合する、請求項１又は２に記載の原稿送り装置。 The document according to claim 1, wherein the drive gear meshes with the driven gear at an angle of 45 degrees or less from the horizontal to the upper side or the lower side when the drive unit is assembled to the housing base unit. Feeder.
  4. 　前記筐体ベースユニットは駆動ユニットを組み付ける際の位置決め部及び駆動ユニット固定用ネジ穴を有し、前記位置決め部及び駆動ユニット固定用ネジ穴は、前記駆動ユニットに対応する形状をなす、請求項１乃至３のいずれか一項に記載の原稿送り装置。 The housing base unit has a positioning portion and a screw hole for fixing the drive unit when the drive unit is assembled, and the positioning portion and the screw hole for fixing the drive unit have a shape corresponding to the drive unit. 4. The document feeder according to any one of items 1 to 3.
  5. 　前記ローラ軸は、分離ローラ軸、読取ローラ軸、排紙ローラ軸を含み、前記駆動ユニットは、前記各ローラ軸がそなえる従動歯車と噛合する駆動歯車を有する、請求項１乃至４のいずれか一項に記載の原稿送り装置。 5. The roller shaft according to claim 1, wherein the roller shaft includes a separation roller shaft, a reading roller shaft, and a paper discharge roller shaft, and the drive unit includes a drive gear that meshes with a driven gear provided by each of the roller shafts. The document feeder according to the item.
  6. 　前記駆動ユニットは２枚の側板を有し、前記駆動歯車は、前記２枚の側板に挟まれて一体として設けられている、請求項１乃至５のいずれか一項に記載の原稿送り装置。 The document feeder according to any one of claims 1 to 5, wherein the drive unit has two side plates, and the drive gear is integrally provided between the two side plates.
  7. 　前記筐体ベースユニットは、給紙ローラと前記従動歯車とをそなえる給紙ローラ軸を前記ローラ軸として有し、前記駆動ユニットは、前記給紙ローラの駆動／停止を制御する電磁クラッチを有し、前記電磁クラッチは、前記駆動ユニットを前記筐体ベースユニットに組み付けた際に前記給紙ローラ軸と同一軸上に位置し、前記給紙ローラ軸には、アタッチメントが設けられ、前記アタッチメントは、前記給紙ローラ軸を前記給紙ローラが設けられる軸と前記電磁クラッチが設けられる軸とに分割する、請求項１乃至６のいずれか一項に記載の原稿送り装置。 The housing base unit has a paper feed roller shaft having a paper feed roller and the driven gear as the roller shaft, and the drive unit has an electromagnetic clutch for controlling driving / stopping of the paper feed roller. The electromagnetic clutch is positioned on the same axis as the paper feed roller shaft when the drive unit is assembled to the housing base unit, and an attachment is provided on the paper feed roller shaft. The document feeding device according to any one of claims 1 to 6, wherein the paper feeding roller shaft is divided into a shaft on which the paper feeding roller is provided and a shaft on which the electromagnetic clutch is provided.
  8. 　筐体ベースユニットと駆動ユニットとを有する原稿送り装置の組み立て方法であって、前記筐体ベースユニットは原稿搬送路を形成し、ローラと従動歯車とをそなえるローラ軸を有し、前記駆動ユニットは前記ローラ軸に動力を伝達し、前記従動歯車に噛合する駆動歯車を有し、前記駆動歯車は、前記筐体ベースユニットに前記駆動ユニットが組み付けられた際に前記従動歯車よりも上方または下方で噛合し、前記噛合に際し、前記筐体ベースユニットに前記駆動ユニットを上方向または下方向から組み付けることを特徴とする原稿送り装置の組み立て方法。 A method for assembling a document feeder having a housing base unit and a drive unit, wherein the housing base unit forms a document transport path, and has a roller shaft that includes a roller and a driven gear, and the drive unit includes: A driving gear that transmits power to the roller shaft and meshes with the driven gear; and the driving gear is above or below the driven gear when the driving unit is assembled to the housing base unit. A method for assembling a document feeder, wherein the drive unit is assembled to the housing base unit from above or below when meshing.
  9. 　前記筐体ベースユニットは、給紙ローラと前記従動歯車とをそなえる給紙ローラ軸を前記ローラ軸として有し、前記駆動ユニットは、前記給紙ローラの駆動／停止を制御する電磁クラッチを有し、前記電磁クラッチは、前記駆動ユニットを前記筐体ベースユニットに組み付けた際に前記給紙ローラ軸と同一軸上に位置し、前記給紙ローラ軸には、アタッチメントが設けられ、前記アタッチメントを介して前記給紙ローラ軸を、前記給紙ローラが設けられる軸と前記電磁クラッチが設けられる軸とに分割する、請求項８に記載の原稿送り装置の組み立て方法。 The housing base unit has a paper feed roller shaft having a paper feed roller and the driven gear as the roller shaft, and the drive unit has an electromagnetic clutch for controlling driving / stopping of the paper feed roller. The electromagnetic clutch is located on the same axis as the paper feed roller shaft when the drive unit is assembled to the housing base unit, and an attachment is provided on the paper feed roller shaft, via the attachment. 9. The method of assembling the document feeder according to claim 8, wherein the paper feed roller shaft is divided into a shaft on which the paper feed roller is provided and a shaft on which the electromagnetic clutch is provided.
PCT/JP2014/003322 2013-07-04 2014-06-20 Document feeding device and method for assembling document feeding device WO2015001752A1 (en)

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