US20160114992A1 - Document feeding device and method for assembling document feeding device - Google Patents
Document feeding device and method for assembling document feeding device Download PDFInfo
- Publication number
- US20160114992A1 US20160114992A1 US14/897,054 US201414897054A US2016114992A1 US 20160114992 A1 US20160114992 A1 US 20160114992A1 US 201414897054 A US201414897054 A US 201414897054A US 2016114992 A1 US2016114992 A1 US 2016114992A1
- Authority
- US
- United States
- Prior art keywords
- drive
- housing base
- driven gear
- base unit
- drive unit
- 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.)
- Abandoned
Links
Images
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
- 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 feeding device and a method for assembling a document feeding device.
- PTLs 1 to 3 are Patent Literatures disclosing a document feeding device.
- FIG. 8 is a diagram illustrating a configuration of a document feeding device of the related technique.
- the document feeding device includes a housing base unit 4 and a drive unit 6 .
- FIG. 9 is a diagram illustrating a configuration of the drive unit 6 in the document feeding device of the above-mentioned related technique.
- the drive unit 6 includes a motor 1 , a drive transmission system 2 , an output shaft 3 , and a control device 5 .
- a main function of the document feeding device is to feed documents one by one and cause the documents to pass through a reading unit at a constant speed. This function is implemented by transmitting the power of input shaft corresponding to the motor 1 to the output shaft 3 by the drive transmission system 2 .
- the drive transmission system 2 is constituted by transmission members such as gears and belts. A form and a quantity of the gears and the belts are appropriately changed so as to achieve a transporting speed of a document corresponding to a reading speed of the device.
- a rubber roller is attached to the roller shaft with a driven gear.
- a driven roller For the roller of the output shaft 3 , a driven roller making a pair exists, and via friction between this pair of rollers, a document is transported.
- the number of rollers used as the output shaft 3 is rarely one, and a plurality of rollers are usually used in combination.
- the roller includes a paper feeding roller that feeds documents one by one, a reading roller that plays a role of stable document transportation near the reading unit, and a paper discharging roller that is provided in front of a paper output tray, and drives out a document, and the like.
- Sharing a mounting space, such various constituent elements are incorporated inside the device, mainly in the housing base unit 4 that forms a document transportation path.
- Assembling of the drive unit 6 forming a transmission path includes work of regularly arranging a large quantity of gears to be directed to a plurality of output shafts, and work of arranging the control device 5 at an intermediate position of the transmission path and performing harness processing, which causes difficulty in assembling.
- a fault in the assembling work generates irregularity in transmission of the drive unit 6 , and the irregularity of this transmission leads directly to nonuniformity in a read image. In other words, precision in transmission of the drive unit 6 directly influences reading quality of a document so that highly precise assembling is required.
- An object of the present invention is to provide a document feeding device and a method for assembling a document feeding device, which solve the above-described problem.
- a document feeding device is a document feeding device including a housing base unit and a drive unit, wherein the housing base unit forms a document transportation path, and includes a roller shaft including a roller and a driven gear, the drive unit transmits power to the roller shaft, and includes a drive gear meshing with the driven gear, and when the drive unit is mounted in the housing base unit, the drive gear is positioned on an upper or lower side of the driven gear to mesh with the driven gear.
- a method for assembling a document feeding device is a method for assembling a document feeding device including a housing base unit and a drive unit, wherein the housing base unit forms a document transportation path, and includes a roller shaft including a roller and a driven gear, the drive unit transmits power to the roller shaft, and includes a drive gear meshing with the driven gear, and when the drive unit is mounted in the housing base unit, the drive gear is positioned on an upper or lower side of the driven gear to mesh with the driven gear, the method including a step of mounting the drive unit in the housing base unit from an upper or lower direction at the time of the meshing.
- FIG. 1 is a schematic diagram illustrating a configuration of a document feeding device 10 according to a first exemplary embodiment.
- FIG. 2 is a perspective view illustrating external appearance of a document feeding device 20 according to a second exemplary embodiment.
- FIG. 3 is an exploded perspective view illustrating a configuration of a housing base unit 210 of the document feeding device 20 according to the second exemplary embodiment.
- FIG. 4 is a schematic diagram illustrating arrangement of respective rollers of the document feeding device 20 according to the second exemplary embodiment.
- FIG. 5 is a diagram illustrating a configuration of a drive unit 220 of the document feeding device 20 according to the second exemplary embodiment.
- FIG. 6 is a schematic diagram illustrating a configuration of the document feeding device 20 according to the second exemplary embodiment.
- FIG. 7 is an exploded perspective view illustrating a configuration of a document feeding device 30 according to a third exemplary embodiment.
- FIG. 8 is a diagram illustrating a configuration of a document feeding device of the related technique.
- FIG. 9 is a diagram illustrating a configuration of a drive unit 6 of the related technique.
- FIG. 1 is a schematic diagram illustrating a configuration of a document feeding device 10 according to a first exemplary embodiment, in which the left side illustrates a front of the device, and the right side illustrates a side of the device.
- the document feeding device 10 is configured to include a housing base unit 110 and a drive unit 120 .
- the housing base unit 110 forms a document transportation path, and includes as an output shaft a roller shaft 113 provided with a roller 111 and a driven gear 112 .
- the drive unit 120 transmits power to the roller shaft 113 , and includes a drive gear 121 meshing with the driven gear 112 .
- the drive gear 121 meshes with the driven gear 112 , and has a function of transmitting power to the roller shaft 113 provided with the driven gear 112 . Being positioned on an upper side of the driven gear 112 , the drive gear 121 meshes with the driven gear 112 when the drive unit 120 is mounted in the housing base unit 110 .
- the drive unit 120 is mounted in the housing base unit 110 from an upper side of the housing base unit 110 .
- the drive gear 121 is positioned on an upper side of the driven gear 112 to mesh with the driven gear 112 .
- This enables the drive unit 120 to be mounted in the housing base unit 110 from the upper side.
- the document feeding device whose components are easily assembled can be provided.
- the drive gear 121 is positioned on an obliquely upper side of the driven gear 112 to mesh with the driven gear 112 .
- an angle ⁇ made by a horizontal plane and a line connecting a center of the drive gear 121 to a center of the driven gear 112 in FIG. 1 is preferably equal to or smaller than 45 degrees.
- the housing base unit 110 may be attached to the drive unit 120 from an upper side.
- the angle ⁇ in this case is preferably equal to or smaller than 45 degrees from a horizontal plane to a lower side.
- the document feeding device 20 is configured to include a housing base unit 210 and a drive unit 220 , similarly to the document feeding device 10 according to the first exemplary embodiment.
- FIG. 2 is a perspective view illustrating external appearance of the document feeding device 20 .
- FIG. 3 is an exploded perspective view illustrating a configuration of the housing base unit 210 of the document feeding device 20 .
- FIG. 4 is a schematic diagram illustrating arrangement of respective rollers when viewing from a roller-axis direction. The arrow in FIG. 4 schematically indicates a path through which a document is transported.
- the housing base unit 210 is configured to include roller shafts 213 provided with rollers 211 and driven gears 212 .
- the rollers 211 include a paper feeding roller 201 , a separating roller 202 , a reading roller 203 , and a paper discharging roller 204 .
- the driven gears 212 include driven gears 202 a, 203 a, and 204 a. In other words, the driven gears 202 a, 203 a, and 204 a are provided at end portions of the respective roller shafts provided with the separating roller 202 , the reading roller 203 , and the paper discharging roller 204 .
- the paper feeding roller 201 is arranged at an upper center of the document feeding device 20 , and on a lower side of the paper feeding roller 201 , the separating roller 202 making a pair with the paper feeding roller 201 is arranged.
- the paper feeding roller 201 has a function of sending out a document to a document transportation path.
- the separating roller 202 has a function of receiving drive of rotation opposite to that of the paper feeding roller 201 , and taking off documents one by one from a sheaf of documents. Since this function is a general function, the description is omitted here. Further, a pick roller playing an auxiliary role for the paper feeding roller 201 is adopted in some cases, but the description is omitted here.
- a side of inserting a document is an upstream side
- a side of discharging a document is a downstream side
- At least one end of the roller shaft of each of the paper feeding roller 201 , the separating roller 202 , the reading roller 203 , and the paper discharging roller 204 is fixed to the housing base unit 210 .
- the roller shafts 213 are drawn on the upper side of the housing base unit 210 , but actually, only the paper feeding roller shaft is positioned on the upper side of the housing base unit 201 , and the other roller shafts are positioned on the lower side of the housing base unit.
- the housing base unit 210 includes a positioning part 214 b and a drive-unit fixing screw hole 214 c for attaching the drive unit 220 .
- the positioning part 214 b and the drive-unit fixing screw hole 214 c are each provided at two positions by taking into consideration rotation prevention and vertical positioning, and have a shape corresponding to the drive unit. This makes it possible to precisely mount the drive unit 220 in the housing base unit 210 from the upper side.
- the housing base unit 210 forms a guide surface 214 a on the downstream side of the paper feeding roller 201 , and forms a document transportation path in cooperation with an unillustrated guide surface on the upstream side.
- the reading roller 203 is arranged on the downstream side of the transportation path.
- a new transportation path is formed so as to make a U-turn around the reading roller 203 .
- the transportation path is forced to make the U-turn so that a region on the lower side of the waiting documents before paper feeding can be used as a document discharge space, and the device can be downsized.
- one or two pairs of driven rollers 203 ′ forming a set with the reading roller 203 are arranged on the circumference.
- the reading roller 203 has a function of transporting a document at the U-turn part by a pressure to and from the driven roller 203 ′.
- the reading unit 215 includes a reading device 215 a and a transparent glass 215 b.
- the transparent glass 215 b functions as a guide of the reading unit 215 , and a document passes between the reading device 215 a and the transparent glass 215 b.
- the reading units 215 may be provided on a front side of and on a rear side of a document, respectively so that both surfaces of a document may be read simultaneously.
- the paper discharging roller 204 On the downstream side of the reading unit 215 , the paper discharging roller 204 is arranged.
- the paper discharging roller 204 has a function of discharging and driving off a document having been read.
- a paper output tray 216 is provided on the downstream side of the paper discharging roller 204 .
- FIG. 5 is a diagram illustrating a configuration of the drive unit 220 .
- the drive unit 220 is constituted by a motor 222 and a case-shaped form that includes two side plates 280 a and 280 b as frames.
- the case-shaped form includes the necessary number of drive gears (gear group) 221 , and gear shafts inside.
- the gear group 221 and the gear shafts are interposed between the both side plates 280 a and 280 b so that rigidity and shaft precision can be secured. As a result, high accuracy of a read image can be achieved.
- sheet metal can be selected to secure the rigidity and the shaft precision.
- the drive unit 220 is made case-shaped. Thereby, the single unit is formed, and the drive unit superior in handling can be provided.
- the gear group 221 includes three drive gears (preceding gears) 205 , 206 , and 207 meshing with the driven gears 202 a, 203 a, and 204 a provided at the respective separating, reading, and discharging roller shafts.
- FIG. 6 is a schematic diagram illustrating a configuration of the document feeding device 20 , in which the left side of FIG. 6( a ) illustrates a device front, and the right side illustrates a side.
- the gear group 221 is positioned on the upper side of the driven gears 212 to mesh with the driven gears 212 .
- each of the drive gears 205 , 206 , and 207 is positioned on the upper side of the corresponding driven gear 212 to mesh with the driven gear 212 .
- the gear group 221 is preferably positioned on an obliquely upper side of the driven gears 212 to mesh with the driven gears 212 when the driven unit 220 is mounted in the housing base unit 210 . Further, in FIGS. 6 ( b 1 ) to ( b 3 ), angles ⁇ , ⁇ , and ⁇ made by a horizontal plane and lines connecting centers of the gear group 221 ( 205 , 206 , and 207 ) to centers of the driven gears 212 are preferably equal to or smaller than 45 degrees.
- a motor 222 has a function as a drive source.
- the drive unit 220 transmits drive to the gear group 221 .
- the drive is transmitted to the roller shafts 213 via the driven gears 212 meshing with the gear group 221 .
- the gear group 221 is positioned on the upper side of the driven gears 212 to mesh with the driven gears 212 .
- the drive unit 220 can be mounted in the housing base unit 210 from the upper side. As a result, it is possible to provide the document feeding device whose components are easily assembled.
- a document feeding device 30 according to a third exemplary embodiment has the same configuration as the document feeding devices 10 and 20 according to the first and second exemplary embodiments.
- FIG. 7 is an exploded perspective view illustrating the configuration of the document feeding device 30 .
- an electromagnetic clutch 323 is provided in a transmission path to a paper feeding roller 301 .
- the electromagnetic clutch 323 is included in the drive unit 320 , and is positioned coaxially with a paper feeding roller shaft 301 a when the drive unit 320 is mounted in the housing base unit 310 .
- Electromagnetic clutches are illustrated in FIG. 2 and FIG. 5 as well.
- the electromagnetic clutch 323 has a function of electrically making on and off action for drive transmission.
- the electromagnetic clutch 323 is used for controlling drive and stop of the paper feeding roller 301 .
- an attachment 317 is provided at the paper feeding roller shaft 301 a.
- An attachment is illustrated in FIG. 2 and FIG. 3 as well.
- the attachment 317 divides the paper feeding roller shaft 301 a into a shaft where the paper feeding roller 301 is provided and a shaft where the electromagnetic clutch 323 is provided.
- the shaft where the paper feeding roller 301 is provided can be freely attached and detached.
- the paper feeding roller 301 is an independent unit that can be periodically replaced in maintenance or the like. Also in an assembling process, it is possible to incorporate the paper feeding roller 301 alone later, without influencing the housing base unit 310 and the drive unit 320 .
- the attachment 317 is provided at the paper feeding roller shaft 301 a.
- the shaft that is positioned at an upper part of the device and is prone to be an obstacle to assembling i.e., the shaft where the paper feeding roller 301 is provided can be incorporated alone later.
- the present invention is not limited to the above-described exemplary embodiments, and needless to say, includes other modified examples and applied examples without departing from the intention of the present invention.
- the present invention can be applied to a document feeding device such as a printer, a copying machine, or a facsimile machine.
Abstract
The present invention provides a document feeding device whose components are easily assembled. A document feeding device includes a housing base unit and a drive unit, the housing base unit forming a document transportation path, and including a roller shaft including a roller and a driven gear, the drive unit transmitting power to the roller shaft, and including a drive gear meshing with the driven gear, and when the drive unit is mounted in the housing base unit, the drive gear being positioned on an upper or lower side of the driven gear to mesh with the driven gear.
Description
- The present invention relates to a document feeding device and a method for assembling a document feeding device.
- PTLs 1 to 3 are Patent Literatures disclosing a document feeding device.
-
FIG. 8 is a diagram illustrating a configuration of a document feeding device of the related technique. The document feeding device includes a housing base unit 4 and adrive unit 6. -
FIG. 9 is a diagram illustrating a configuration of thedrive unit 6 in the document feeding device of the above-mentioned related technique. Thedrive unit 6 includes a motor 1, adrive transmission system 2, anoutput shaft 3, and acontrol device 5. - A main function of the document feeding device is to feed documents one by one and cause the documents to pass through a reading unit at a constant speed. This function is implemented by transmitting the power of input shaft corresponding to the motor 1 to the
output shaft 3 by thedrive transmission system 2. Thedrive transmission system 2 is constituted by transmission members such as gears and belts. A form and a quantity of the gears and the belts are appropriately changed so as to achieve a transporting speed of a document corresponding to a reading speed of the device. As theoutput shaft 3, a rubber roller is attached to the roller shaft with a driven gear. For the roller of theoutput shaft 3, a driven roller making a pair exists, and via friction between this pair of rollers, a document is transported. The number of rollers used as theoutput shaft 3 is rarely one, and a plurality of rollers are usually used in combination. There are various applications and functions of the rollers thereof. The roller, for example, includes a paper feeding roller that feeds documents one by one, a reading roller that plays a role of stable document transportation near the reading unit, and a paper discharging roller that is provided in front of a paper output tray, and drives out a document, and the like. - Sharing a mounting space, such various constituent elements are incorporated inside the device, mainly in the housing base unit 4 that forms a document transportation path.
- Assembling of the
drive unit 6 forming a transmission path includes work of regularly arranging a large quantity of gears to be directed to a plurality of output shafts, and work of arranging thecontrol device 5 at an intermediate position of the transmission path and performing harness processing, which causes difficulty in assembling. A fault in the assembling work generates irregularity in transmission of thedrive unit 6, and the irregularity of this transmission leads directly to nonuniformity in a read image. In other words, precision in transmission of thedrive unit 6 directly influences reading quality of a document so that highly precise assembling is required. - In the document feeding device illustrated in
FIG. 8 andFIG. 9 , work of mounting, from the horizontal direction, gears in the laterally long housing base unit 4 forming the document transportation path is standard. In other words, first, one (“a” inFIG. 9 ) of two side plates of thedrive unit 6 is attached to the housing base unit 4, and respective roller shafts are fixed. Next, gears are attached to the respective roller shafts, and are sandwiched and fixed by the other one side plate (“b” inFIG. 9 ). This is mounting in the members receiving the output shaft rollers, and for this reason, can be regarded as highly precise component mounting. - [PTL 1] Japanese Laid-open Patent Publication No. 2012-180217
- [PTL 2] Japanese Laid-open Patent Publication No. 2009-182949
- [PTL 3] Japanese Laid-open Patent Publication No. 2004-026500
- The following problem, however, exists in the document feeding device illustrated in
FIG. 8 andFIG. 9 . In other words, the work of mounting, from the horizontal direction, gears in the laterally long housing base unit 4 forming the document transportation path lacks in efficiency in that the work has to be performed with the laterally long housing base unit being kept standing upright, or the like. Further, an additional jig such as a jig for holding the housing standing upright is needed for performing this work. - An object of the present invention is to provide a document feeding device and a method for assembling a document feeding device, which solve the above-described problem.
- A document feeding device according to the present invention is a document feeding device including a housing base unit and a drive unit, wherein the housing base unit forms a document transportation path, and includes a roller shaft including a roller and a driven gear, the drive unit transmits power to the roller shaft, and includes a drive gear meshing with the driven gear, and when the drive unit is mounted in the housing base unit, the drive gear is positioned on an upper or lower side of the driven gear to mesh with the driven gear.
- A method for assembling a document feeding device according to the present invention is a method for assembling a document feeding device including a housing base unit and a drive unit, wherein the housing base unit forms a document transportation path, and includes a roller shaft including a roller and a driven gear, the drive unit transmits power to the roller shaft, and includes a drive gear meshing with the driven gear, and when the drive unit is mounted in the housing base unit, the drive gear is positioned on an upper or lower side of the driven gear to mesh with the driven gear, the method including a step of mounting the drive unit in the housing base unit from an upper or lower direction at the time of the meshing.
- According to the present invention, it is possible to provide a document feeding device and a method for assembling a document feeding device, in which components are easily assembled.
-
FIG. 1 is a schematic diagram illustrating a configuration of adocument feeding device 10 according to a first exemplary embodiment. -
FIG. 2 is a perspective view illustrating external appearance of adocument feeding device 20 according to a second exemplary embodiment. -
FIG. 3 is an exploded perspective view illustrating a configuration of ahousing base unit 210 of thedocument feeding device 20 according to the second exemplary embodiment. -
FIG. 4 is a schematic diagram illustrating arrangement of respective rollers of thedocument feeding device 20 according to the second exemplary embodiment. -
FIG. 5 is a diagram illustrating a configuration of adrive unit 220 of thedocument feeding device 20 according to the second exemplary embodiment. -
FIG. 6 is a schematic diagram illustrating a configuration of thedocument feeding device 20 according to the second exemplary embodiment. -
FIG. 7 is an exploded perspective view illustrating a configuration of adocument feeding device 30 according to a third exemplary embodiment. -
FIG. 8 is a diagram illustrating a configuration of a document feeding device of the related technique. -
FIG. 9 is a diagram illustrating a configuration of adrive unit 6 of the related technique. -
FIG. 1 is a schematic diagram illustrating a configuration of adocument feeding device 10 according to a first exemplary embodiment, in which the left side illustrates a front of the device, and the right side illustrates a side of the device. - The
document feeding device 10 is configured to include ahousing base unit 110 and adrive unit 120. - The
housing base unit 110 forms a document transportation path, and includes as an output shaft aroller shaft 113 provided with aroller 111 and a drivengear 112. - The
drive unit 120 transmits power to theroller shaft 113, and includes adrive gear 121 meshing with the drivengear 112. - The
drive gear 121 meshes with the drivengear 112, and has a function of transmitting power to theroller shaft 113 provided with the drivengear 112. Being positioned on an upper side of the drivengear 112, thedrive gear 121 meshes with the drivengear 112 when thedrive unit 120 is mounted in thehousing base unit 110. - In assembling operation, the
drive unit 120 is mounted in thehousing base unit 110 from an upper side of thehousing base unit 110. - According to the
document feeding device 10 of the first exemplary embodiment, when thedrive unit 120 is mounted in thehousing base unit 110, thedrive gear 121 is positioned on an upper side of the drivengear 112 to mesh with the drivengear 112. This enables thedrive unit 120 to be mounted in thehousing base unit 110 from the upper side. As a result, the document feeding device whose components are easily assembled can be provided. - Preferably, when the
drive unit 120 is mounted in thehousing base unit 110, thedrive gear 121 is positioned on an obliquely upper side of the drivengear 112 to mesh with the drivengear 112. Additionally, an angle θ made by a horizontal plane and a line connecting a center of thedrive gear 121 to a center of the drivengear 112 inFIG. 1 is preferably equal to or smaller than 45 degrees. Thereby, compared with a case where thedrive gear 121 is positioned on the just upper side of the drivengear 112 to mesh with the drivengear 112, for example, collision between teeth of the gears at the time of assembling can be alleviated, and the gears easily mesh with each other. - Although the configuration is made such that the
drive unit 120 is mounted in thehousing base unit 110 from an upper side in the above description, the same advantageous effect can be obtained even by a configuration in which the mounting is performed in the same manner from a lower side. In other words, thehousing base unit 110 may be attached to thedrive unit 120 from an upper side. The angle θ in this case is preferably equal to or smaller than 45 degrees from a horizontal plane to a lower side. - The
document feeding device 20 according to the second exemplary embodiment is configured to include ahousing base unit 210 and adrive unit 220, similarly to thedocument feeding device 10 according to the first exemplary embodiment. -
FIG. 2 is a perspective view illustrating external appearance of thedocument feeding device 20.FIG. 3 is an exploded perspective view illustrating a configuration of thehousing base unit 210 of thedocument feeding device 20.FIG. 4 is a schematic diagram illustrating arrangement of respective rollers when viewing from a roller-axis direction. The arrow inFIG. 4 schematically indicates a path through which a document is transported. - The
housing base unit 210 is configured to includeroller shafts 213 provided withrollers 211 and driven gears 212. Therollers 211 include apaper feeding roller 201, a separatingroller 202, a readingroller 203, and apaper discharging roller 204. The driven gears 212 include drivengears gears roller 202, the readingroller 203, and thepaper discharging roller 204. - As for attachment of the respective roller shafts to the
housing base unit 210, a general method is used so that the description is omitted here. - The
paper feeding roller 201 is arranged at an upper center of thedocument feeding device 20, and on a lower side of thepaper feeding roller 201, the separatingroller 202 making a pair with thepaper feeding roller 201 is arranged. Thepaper feeding roller 201 has a function of sending out a document to a document transportation path. - The separating
roller 202 has a function of receiving drive of rotation opposite to that of thepaper feeding roller 201, and taking off documents one by one from a sheaf of documents. Since this function is a general function, the description is omitted here. Further, a pick roller playing an auxiliary role for thepaper feeding roller 201 is adopted in some cases, but the description is omitted here. - It is assumed that a side of inserting a document is an upstream side, and a side of discharging a document is a downstream side.
- At least one end of the roller shaft of each of the
paper feeding roller 201, the separatingroller 202, the readingroller 203, and thepaper discharging roller 204 is fixed to thehousing base unit 210. InFIG. 3 , theroller shafts 213 are drawn on the upper side of thehousing base unit 210, but actually, only the paper feeding roller shaft is positioned on the upper side of thehousing base unit 201, and the other roller shafts are positioned on the lower side of the housing base unit. - The
housing base unit 210 includes apositioning part 214 b and a drive-unit fixingscrew hole 214 c for attaching thedrive unit 220. Thepositioning part 214 b and the drive-unit fixingscrew hole 214 c are each provided at two positions by taking into consideration rotation prevention and vertical positioning, and have a shape corresponding to the drive unit. This makes it possible to precisely mount thedrive unit 220 in thehousing base unit 210 from the upper side. - The
housing base unit 210 forms aguide surface 214 a on the downstream side of thepaper feeding roller 201, and forms a document transportation path in cooperation with an unillustrated guide surface on the upstream side. - The reading
roller 203 is arranged on the downstream side of the transportation path. A new transportation path is formed so as to make a U-turn around the readingroller 203. The transportation path is forced to make the U-turn so that a region on the lower side of the waiting documents before paper feeding can be used as a document discharge space, and the device can be downsized. As illustrated inFIG. 4 , at thereading roller 203, one or two pairs of drivenrollers 203′ forming a set with the readingroller 203 are arranged on the circumference. The readingroller 203 has a function of transporting a document at the U-turn part by a pressure to and from the drivenroller 203′. - At a position where a document reaches the lowest point in the device after completion of the U-turn of the document, a
reading unit 215 is arranged. Thereading unit 215 includes areading device 215 a and atransparent glass 215 b. Thetransparent glass 215 b functions as a guide of thereading unit 215, and a document passes between thereading device 215 a and thetransparent glass 215 b. The readingunits 215 may be provided on a front side of and on a rear side of a document, respectively so that both surfaces of a document may be read simultaneously. - On the downstream side of the
reading unit 215, thepaper discharging roller 204 is arranged. Thepaper discharging roller 204 has a function of discharging and driving off a document having been read. - On the downstream side of the
paper discharging roller 204, apaper output tray 216 is provided. -
FIG. 5 is a diagram illustrating a configuration of thedrive unit 220. Thedrive unit 220 is constituted by amotor 222 and a case-shaped form that includes twoside plates gear group 221 and the gear shafts are interposed between the bothside plates side plates - In the document feeding device illustrated in
FIG. 8 andFIG. 9 , apart from the above-described problem, when the gears are attached from the horizontal direction to the respective roller shafts, and are fixed by the side plate b of thedrive unit 6, it was necessary to slide the side plate b while paying attention so that each gear is not displaced. In addition, a jig for sliding the side plate b was needed. On the contrary, in thedocument feeding device 20 according to the present exemplary embodiment, thedrive unit 220 is made case-shaped. Thereby, the single unit is formed, and the drive unit superior in handling can be provided. - The
gear group 221 includes three drive gears (preceding gears) 205, 206, and 207 meshing with the drivengears -
FIG. 6 is a schematic diagram illustrating a configuration of thedocument feeding device 20, in which the left side ofFIG. 6(a) illustrates a device front, and the right side illustrates a side. As illustrated inFIG. 6(a) , when thedrive unit 220 is mounted in thehousing base unit 210, thegear group 221 is positioned on the upper side of the drivengears 212 to mesh with the driven gears 212. In other words, as illustrated inFIGS. 6 (b 1) to (b 3), each of the drive gears 205, 206, and 207 is positioned on the upper side of the corresponding drivengear 212 to mesh with the drivengear 212. - The
gear group 221 is preferably positioned on an obliquely upper side of the drivengears 212 to mesh with the drivengears 212 when the drivenunit 220 is mounted in thehousing base unit 210. Further, inFIGS. 6 (b 1) to (b 3), angles α, β, and γ made by a horizontal plane and lines connecting centers of the gear group 221 (205, 206, and 207) to centers of the drivengears 212 are preferably equal to or smaller than 45 degrees. - Thereby, compared with a case where the gear group 221 (205, 206, and 207) is positioned on the just upper side of the driven
gears 212 to mesh with the driven gears 212, for example, collision between teeth of the gears at the time of assembling can be alleviated, and meshing between the gears is facilitated. - A
motor 222 has a function as a drive source. When electric power is supplied to themotor 222, thedrive unit 220 transmits drive to thegear group 221. The drive is transmitted to theroller shafts 213 via the drivengears 212 meshing with thegear group 221. - According to the
document feeding device 20 of the second exemplary embodiment, when thedrive unit 220 is mounted in thehousing base unit 210, thegear group 221 is positioned on the upper side of the drivengears 212 to mesh with the driven gears 212. Thereby, thedrive unit 220 can be mounted in thehousing base unit 210 from the upper side. As a result, it is possible to provide the document feeding device whose components are easily assembled. - For a configuration that is not particularly described in the following, a
document feeding device 30 according to a third exemplary embodiment has the same configuration as thedocument feeding devices -
FIG. 7 is an exploded perspective view illustrating the configuration of thedocument feeding device 30. - In the
document feeding device 30 according to the present exemplary embodiment, anelectromagnetic clutch 323 is provided in a transmission path to apaper feeding roller 301. Theelectromagnetic clutch 323 is included in thedrive unit 320, and is positioned coaxially with a paper feedingroller shaft 301 a when thedrive unit 320 is mounted in thehousing base unit 310. Electromagnetic clutches are illustrated inFIG. 2 andFIG. 5 as well. - The
electromagnetic clutch 323 has a function of electrically making on and off action for drive transmission. In the present exemplary embodiment, theelectromagnetic clutch 323 is used for controlling drive and stop of thepaper feeding roller 301. - At the paper feeding
roller shaft 301 a, anattachment 317 is provided. An attachment is illustrated inFIG. 2 andFIG. 3 as well. Theattachment 317 divides the paper feedingroller shaft 301 a into a shaft where thepaper feeding roller 301 is provided and a shaft where theelectromagnetic clutch 323 is provided. Thereby, while the shaft to which theelectromagnetic clutch 323 is attached is kept fixed to thedrive unit 320, the shaft where thepaper feeding roller 301 is provided can be freely attached and detached. As a result, thepaper feeding roller 301 is an independent unit that can be periodically replaced in maintenance or the like. Also in an assembling process, it is possible to incorporate thepaper feeding roller 301 alone later, without influencing thehousing base unit 310 and thedrive unit 320. - According to the
paper feeding device 30 of the third exemplary embodiment, theattachment 317 is provided at the paper feedingroller shaft 301 a. Thereby, the shaft that is positioned at an upper part of the device and is prone to be an obstacle to assembling, i.e., the shaft where thepaper feeding roller 301 is provided can be incorporated alone later. As a result, it becomes possible to mount thedrive unit 320 in thehousing base unit 310 from an upper side. - Although the exemplary embodiments of the present invention are described above, the present invention is not limited to the above-described exemplary embodiments, and needless to say, includes other modified examples and applied examples without departing from the intention of the present invention.
- The invention of the present application claims a priority based on Japanese patent application No. 2013-140579 filed on Jul. 4, 2013, whose entire disclosure is incorporated herein.
- The present invention can be applied to a document feeding device such as a printer, a copying machine, or a facsimile machine.
- 10, 20, 30 document feeding device
- 110, 210, 310 housing base unit
- 111, 211 roller
- 112, 212 driven gear
- 113, 213 roller shaft
- 120, 220, 320 drive unit
- 201, 301 paper feeding roller
- 202 separating roller
- 203 reading roller
- 203′ driven roller
- 204 paper discharging roller
- 202 a, 203 a, 204 a driven gear
- 205, 206, 207 drive gear
- 214 a guide surface
- 214 b positioning part
- 214 c drive-unit fixing screw hole
- 215 reading unit
- 215 a reading device
- 215 b transparent glass
- 121 drive gear
- 221 gear group
- 222 motor
- 280 a, 280 b side plate
- 301 a paper-feeding-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 plate
Claims (9)
1. A document feeding device comprising a housing base unit and a drive unit, wherein the housing base unit forms a document transportation path, and comprises a roller shaft including a roller and a driven gear, the drive unit transmits power to the roller shaft, and comprises a drive gear meshing with the driven gear, and when the drive unit is mounted in the housing base unit, the drive gear is positioned on an upper or lower side of the driven gear to mesh with the driven gear.
2. The document feeding device according to claim 1 , wherein when the drive unit is mounted in the housing base unit, the drive gear is positioned on an obliquely upper or obliquely lower side of the driven gear to mesh with the driven gear.
3. The document feeding device according to claim 1 , wherein when the drive unit is mounted in the housing base unit, the drive gear is positioned on an upper or lower side of the driven gear at an angle of 45 degrees or less from an horizontal plane with respect to the driven gear to mesh with the driven gear.
4. The document feeding device according to claim 1 , wherein the housing base unit comprises a positioning part and a drive-unit fixing screw hole used for mounting the drive unit, and the positioning part and the drive-unit fixing screw hole have a shape corresponding to the drive unit.
5. The document feeding device according to claim 1 , wherein the roller shaft includes a separating roller shaft, a reading roller shaft, and a paper discharging roller shaft, and the drive unit comprises drive gears meshing with driven gears provided at the respective roller shafts.
6. The document feeding device according to claim 1 , wherein the drive unit comprises two side plates, and the drive gear is interposed unitedly between the two side plates.
7. The document feeding device according to claim 1 , wherein the housing base unit comprises as the roller shaft a paper feeding roller shaft including a paper feeding roller and the driven gear, the drive unit comprises an electromagnetic clutch controlling drive and stop of the paper feeding roller, the electromagnetic clutch is positioned coaxially with the paper feeding roller shaft when the drive unit is mounted in the housing base unit, and an attachment is provided at the paper feeding roller shaft, and divides the paper feeding roller shaft into a shaft where the paper feeding roller is provided and a shaft where the electromagnetic clutch is provided.
8. A method for assembling a document feeding device comprising a housing base unit and a drive unit, wherein the housing base unit forms a document transportation path, and comprises a roller shaft including a roller and a driven gear, the drive unit transmits power to the roller shaft, and comprises a drive gear meshing with the driven gear, when the drive unit is mounted in the housing base unit, the drive gear is positioned on an upper or lower side of the driven gear to mesh with the driven gear, and at the time of the meshing, the drive unit is mounted in the housing base unit from an upper or lower side.
9. The method for assembling the document feeding device according to claim 8 , wherein the housing base unit comprises as the roller shaft a paper feeding roller shaft including a paper feeding roller and the driven gear, the drive unit comprises an electromagnetic clutch controlling drive and stop of the paper feeding roller, the electromagnetic clutch is positioned coaxially with the paper feeding roller shaft when the drive unit is mounted in the housing base unit, an attachment is provided at the paper feeding roller shaft, and via the attachment, the paper feeding roller shaft is divided into a shaft where the paper feeding roller is provided and a shaft where the electromagnetic clutch is provided.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013-140579 | 2013-07-04 | ||
JP2013140579A JP6235252B2 (en) | 2013-07-04 | 2013-07-04 | Document feeder and document feeder assembly method |
PCT/JP2014/003322 WO2015001752A1 (en) | 2013-07-04 | 2014-06-20 | Document feeding device and method for assembling document feeding device |
Publications (1)
Publication Number | Publication Date |
---|---|
US20160114992A1 true US20160114992A1 (en) | 2016-04-28 |
Family
ID=52143355
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/897,054 Abandoned US20160114992A1 (en) | 2013-07-04 | 2014-06-20 | Document feeding device and method for assembling document feeding device |
Country Status (4)
Country | Link |
---|---|
US (1) | US20160114992A1 (en) |
JP (1) | JP6235252B2 (en) |
CN (1) | CN105579372A (en) |
WO (1) | WO2015001752A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20220100850A1 (en) * | 2020-09-28 | 2022-03-31 | Robert Bosch Gmbh | Method and system for breaking backdoored classifiers through adversarial examples |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6904042B2 (en) * | 2017-04-26 | 2021-07-14 | セイコーエプソン株式会社 | Image reader |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5823523A (en) * | 1995-11-24 | 1998-10-20 | Samsung Electronics Co., Ltd. | Auto sheet feeder for use in a printing apparatus |
US20030122296A1 (en) * | 2002-01-02 | 2003-07-03 | Samsung Electronics Co., Ltd. | Jam removing apparatus of machine having ADF function |
US20040124575A1 (en) * | 2002-12-30 | 2004-07-01 | Samsung Electronics Co., Ltd. | Power transmitting apparatus, power switching apparatus, and driving apparatus of multi-function machine using the same |
US20040256787A1 (en) * | 2003-05-30 | 2004-12-23 | Kyocera Mita Corporation | Sheet transporting device |
US20100102500A1 (en) * | 2008-10-29 | 2010-04-29 | Brother Kogyo Kabushiki Kaisha | Image Reading Apparatus and Image Forming Apparatus |
US20110006469A1 (en) * | 2009-07-13 | 2011-01-13 | Canon Kabushiki Kaisha | Sheet feeding apparatus and image forming apparatus |
US20120098186A1 (en) * | 2010-10-22 | 2012-04-26 | Teco Image System Co., Ltd. | Paper pickup structure of paper feeding device |
US20130336696A1 (en) * | 2012-06-19 | 2013-12-19 | Cal-Comp Electronics & Communications Company Limited | Automatic document feeder and media record equipment using the same |
US20160010734A1 (en) * | 2014-07-08 | 2016-01-14 | Brother Kogyo Kabushiki Kaisha | Image Forming Apparatus |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2689469B2 (en) * | 1988-04-08 | 1997-12-10 | セイコーエプソン株式会社 | Printer paper feed mechanism |
JPH03192044A (en) * | 1989-12-18 | 1991-08-21 | Matsushita Graphic Commun Syst Inc | Image communication device |
JP2899167B2 (en) * | 1991-07-15 | 1999-06-02 | キヤノン株式会社 | Image forming device |
JPH08223362A (en) * | 1995-02-13 | 1996-08-30 | Ricoh Co Ltd | Image reader |
JP2937926B2 (en) * | 1997-02-27 | 1999-08-23 | 静岡日本電気株式会社 | Recording device |
JP3069488U (en) * | 1999-12-07 | 2000-06-23 | 船井電機株式会社 | Printer |
JP2007261698A (en) * | 2006-03-27 | 2007-10-11 | Kyocera Mita Corp | Sheet conveying device and image reading device provided therewith |
CN201077685Y (en) * | 2007-08-15 | 2008-06-25 | 崴强科技股份有限公司 | Transmission mechanism of automatic sheet conveying apparatus |
CN101486416B (en) * | 2009-01-19 | 2011-05-11 | 温岭市华驰机械有限公司 | Printing paper feeding device |
CN201501680U (en) * | 2009-06-04 | 2010-06-09 | 东莞东骏电器有限公司 | Two-wheel double-drive gear feeder |
CN102040109B (en) * | 2009-10-16 | 2012-11-28 | 虹光精密工业(苏州)有限公司 | Paper feed device of wheel gear assembly with mountable spindle position |
JP5510636B2 (en) * | 2009-10-20 | 2014-06-04 | セイコーエプソン株式会社 | Material transport apparatus and image processing apparatus |
JP5140702B2 (en) * | 2010-05-25 | 2013-02-13 | 京セラドキュメントソリューションズ株式会社 | Conveying device and image forming apparatus incorporating the conveying device |
-
2013
- 2013-07-04 JP JP2013140579A patent/JP6235252B2/en active Active
-
2014
- 2014-06-20 US US14/897,054 patent/US20160114992A1/en not_active Abandoned
- 2014-06-20 CN CN201480038353.9A patent/CN105579372A/en active Pending
- 2014-06-20 WO PCT/JP2014/003322 patent/WO2015001752A1/en active Application Filing
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5823523A (en) * | 1995-11-24 | 1998-10-20 | Samsung Electronics Co., Ltd. | Auto sheet feeder for use in a printing apparatus |
US20030122296A1 (en) * | 2002-01-02 | 2003-07-03 | Samsung Electronics Co., Ltd. | Jam removing apparatus of machine having ADF function |
US20040124575A1 (en) * | 2002-12-30 | 2004-07-01 | Samsung Electronics Co., Ltd. | Power transmitting apparatus, power switching apparatus, and driving apparatus of multi-function machine using the same |
US20040256787A1 (en) * | 2003-05-30 | 2004-12-23 | Kyocera Mita Corporation | Sheet transporting device |
US20100102500A1 (en) * | 2008-10-29 | 2010-04-29 | Brother Kogyo Kabushiki Kaisha | Image Reading Apparatus and Image Forming Apparatus |
US20110006469A1 (en) * | 2009-07-13 | 2011-01-13 | Canon Kabushiki Kaisha | Sheet feeding apparatus and image forming apparatus |
US20120098186A1 (en) * | 2010-10-22 | 2012-04-26 | Teco Image System Co., Ltd. | Paper pickup structure of paper feeding device |
US20130336696A1 (en) * | 2012-06-19 | 2013-12-19 | Cal-Comp Electronics & Communications Company Limited | Automatic document feeder and media record equipment using the same |
US20160010734A1 (en) * | 2014-07-08 | 2016-01-14 | Brother Kogyo Kabushiki Kaisha | Image Forming Apparatus |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20220100850A1 (en) * | 2020-09-28 | 2022-03-31 | Robert Bosch Gmbh | Method and system for breaking backdoored classifiers through adversarial examples |
Also Published As
Publication number | Publication date |
---|---|
JP2015013714A (en) | 2015-01-22 |
WO2015001752A1 (en) | 2015-01-08 |
JP6235252B2 (en) | 2017-11-22 |
CN105579372A (en) | 2016-05-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN103787013B (en) | Sheet material automatic loading/unloading casket | |
EP3355565A1 (en) | Image reading apparatus | |
CN110451302B (en) | Medium feeding device | |
US20160114992A1 (en) | Document feeding device and method for assembling document feeding device | |
JP2014215428A5 (en) | ||
RU2012102755A (en) | DEVICE FOR PROCESSING PAPER SHEETS | |
US20130048466A1 (en) | Conveyor apparatus, processing apparatus, conveyance method, and processing method | |
CN105436030A (en) | Track conveying assembly of full-automatic online glue dispenser | |
US20110157666A1 (en) | Image reading apparatus | |
MX2019004011A (en) | Screening apparatus. | |
US8789829B2 (en) | Image recording device | |
US10502304B2 (en) | Drive transmission device for transmitting rotary drive | |
JP4697617B2 (en) | Automatic document feeder | |
US20100032885A1 (en) | Bidirectional-to-unidirectional transmission system and sheet feeding apparatus using the same | |
US20100225048A1 (en) | Automatic sheet feeding apparatus with clutch | |
CN203728017U (en) | Automatic feeding-discharging box of sheets | |
US9334133B2 (en) | Sheet feeder with dual discharge | |
KR102023979B1 (en) | Photo printer | |
CN105460649A (en) | Paper feeding device with skew correction function | |
JP2011173683A (en) | Carrying mechanism of sheet-like material | |
JP2016114239A (en) | Drive transmission device | |
CN204057336U (en) | There is the paper-advance unit of skew corrected function | |
JP6597189B2 (en) | Conveying apparatus and image recording apparatus | |
CN1637640A (en) | Substrate deskew system and method | |
JP2019021958A (en) | Image reading apparatus |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: NEC PLATFORMS, LTD, JAPAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:NAGURA, YASUKAZU;REEL/FRAME:037248/0955 Effective date: 20151130 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |