CN202156798U - Paper transmitting device, paper supplying unit and image forming device - Google Patents

Paper transmitting device, paper supplying unit and image forming device Download PDF

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Publication number
CN202156798U
CN202156798U CN2011201378419U CN201120137841U CN202156798U CN 202156798 U CN202156798 U CN 202156798U CN 2011201378419 U CN2011201378419 U CN 2011201378419U CN 201120137841 U CN201120137841 U CN 201120137841U CN 202156798 U CN202156798 U CN 202156798U
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CN
China
Prior art keywords
mentioned
roll shaft
paper
conveying roller
cover
Prior art date
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Expired - Fee Related
Application number
CN2011201378419U
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Chinese (zh)
Inventor
长谷川胜洋
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Murata Machinery Ltd
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Murata Machinery Ltd
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Publication date
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Publication of CN202156798U publication Critical patent/CN202156798U/en
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    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • 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
    • B65H5/062—Feeding articles separated from piles; Feeding articles to machines by rollers or balls, e.g. between rollers between rollers or balls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J13/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2402/00—Constructional details of the handling apparatus
    • B65H2402/40—Details of frames, housings or mountings of the whole handling apparatus
    • B65H2402/44—Housings
    • B65H2402/441—Housings movable for facilitating access to area inside the housing, e.g. pivoting or sliding
    • 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
    • B65H2404/13—Details of longitudinal profile
    • B65H2404/134—Axle
    • B65H2404/1341—Elastic mounting, i.e. subject to biasing means
    • 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
    • B65H2404/14—Roller pairs
    • B65H2404/144—Roller pairs with relative movement of the rollers to / from each other
    • 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
    • B65H2404/60—Other elements in face contact with handled material
    • B65H2404/61—Longitudinally-extending strips, tubes, plates, or wires
    • B65H2404/611—Longitudinally-extending strips, tubes, plates, or wires arranged to form a channel

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)

Abstract

A paper transmitting device comprises a transmitting roller pair, a first roller shaft, a second roller shaft, a force applying part and a covet part which can be opened and closed, wherein the transmitting roller pair comprises a first transmitting roller and a second transmitting roller which is arranged opposite to the first transmitting roller, and is used for transmitting paper, the first roller shaft is communicated with the first transmitting roller in an inserting way, the second roller shaft is communicated with the second transmitting roller in the inserting way, the force applying part enables the second roller shaft to apply force to the side of the first roller shaft, the force applying part is arranged on the inner surface of the cover part and is used for supporting the second roller shaft, and the force applying part enables the second roller shaft to apply force to the side of the first roller shaft under a condition that the cover part is closed.

Description

Paper transport device, paper supply unit and image processing system
The preceence that the Japanese patent application that the application advocates to file an application on May 12nd, 2010 based on 35U.S.C.119 is 2010-110409 number is quoted its full content here.
Technical field
The image processing system that the utility model relates to paper transport device, possesses the paper supply unit of this paper transport device and possess this paper supply unit.
Background technology
In the image processing system of chopping machine, facsimile unit, duplicator etc., be equipped with paper feed from sheet feed cassette to image forming part that supply with paper from.In such paper feed, general above the side of sheet feed cassette the configuration conveying roller right, through this conveying roller to the paper in the sheet feed cassette is carried towards image forming part.
In addition, as structure more specifically, can enumerate following such paper feed.For example, be provided with and cover the right open-close lid of conveying roller, the roll shaft that supports a conveying roller of conveying roller centering is installed on the open-close lid.And the roll shaft that supports another conveying roller is installed in main body side.Therefore, through open-close lid is opened, conveying roller is to leaving, so can be with being blocked near the right paper taking-up of this conveying roller.
, in the paper feed that has the structure same, sets up with option with above-mentioned paper feed, can know be if the working year number about in a few years, just easily conveying roller right near the device of generation paperboard.Can know through investigation, paperboard takes place in being equipped on the paper feed that is placed on the image processing system in the hot and humid environment easily.
The result of study that the inventor carries out shows that above-mentioned paperboard is because following such mechanism.That is, for long-term, paper feed are placed under the inferior situation of hot and humid environment, the cover that the open-close lid that formed by resin etc. arranged is the situation of warpage laterally at the working year number.Through this cover warpage, the conveying roller that is installed on the cover is kept out of the way laterally, dies down with the Clamping force of opposed conveying roller, can not obtain sufficient carrying capacity.Thus, paperboard takes place easily.
The utility model content
So, a kind of under the situation that the cover warpage that constitutes a right conveying roller of conveying roller is installed even the purpose of the utility model provides, also can keep the paper transport device of the right sufficient carrying capacity of conveying roller.In addition, purpose provides a kind of image processing system that possesses the paper supply unit of this paper transport device and possess this paper supply unit.
About the paper transport device of the utility model comprises that conveying roller is to, the 1st roll shaft, the 2nd roll shaft, cover and force application part.2nd conveying roller of conveying roller to having the 1st conveying roller and being opposite to the 1st conveying roller is used for conveyance of sheets.The 1st roll shaft is inserted and is led in the 1st conveying roller.The 2nd roll shaft is inserted and is led in the 2nd conveying roller.Cover can open and close.Force application part is installed in the inner face of cover, and supports the 2nd roll shaft.And, force application part under the cover closing state to the 2nd roll shaft to the 1st roll shaft side application of force.
According to the paper transport device of relevant the utility model, through being installed in the 1st and the 2nd conveying roller conveyance of sheets on the 1st and the 2nd roll shaft respectively.Inner face at cover is equipped with force application part, supports the 2nd roll shaft through this force application part, and under the cover closing state the 2nd roll shaft by to the 1st roll shaft side application of force.That is, the 2nd roll shaft is not to be directly installed on the cover, but the force application part that is installed on the cover supports, by to the 1st roll shaft side application of force.Thereby, even at cover laterally under the situation of warpage, also can suppress to follow the warpage of cover and the 2nd roll shaft leaves from the 1st roll shaft, keep the Clamping force of the 1st conveying roller and the 2nd conveying roller.Thereby, even under the situation that the cover warpage that constitutes a right conveying roller of conveying roller is installed, also can keep the sufficient carrying capacity of conveying roller to bringing.
About the paper supply unit of the utility model comprises resettlement section and paper transport device.In the resettlement section, accommodate paper.Paper transport device is conveyance of sheets from the resettlement section.In addition, paper transport device comprises that conveying roller is to, the 1st roll shaft, the 2nd roll shaft, cover and force application part.2nd conveying roller of conveying roller to having the 1st conveying roller and being opposite to the 1st conveying roller is used for conveyance of sheets.The 1st roll shaft is inserted and is led in the 1st conveying roller.The 2nd roll shaft is inserted and is led in the 2nd conveying roller.Cover can open and close.Force application part is mounted in the inner face of cover and supports the force application part of the 2nd roll shaft, under the cover closing state to the 2nd roll shaft to the 1st roll shaft side application of force.
According to the paper supply unit of relevant the utility model, even under the situation that the cover warpage that constitutes a right conveying roller of conveying roller is installed, also can keep the sufficient carrying capacity of conveying roller, conveyance of sheets from the resettlement section to bringing.
About the image processing system of the utility model comprises: image forming part, resettlement section and paper transport device.Image forming part forms image on paper.In the resettlement section, accommodate paper.The paper that paper transport device will be housed in the resettlement section is carried to above-mentioned image forming part.In addition, paper transport device comprises that conveying roller is to, the 1st roll shaft, the 2nd roll shaft, cover and force application part.2nd conveying roller of conveying roller to having the 1st conveying roller and being opposite to the 1st conveying roller is used for conveyance of sheets.The 1st roll shaft is inserted and is led in the 1st conveying roller.The 2nd roll shaft is inserted and is led in the 2nd conveying roller.Cover can open and close.Force application part is mounted in the inner face of cover and supports the force application part of the 2nd roll shaft, under the cover closing state with the 2nd roll shaft to the 1st roll shaft side application of force.
According to the image processing system of relevant the utility model, even under the situation that the cover warpage that constitutes a right conveying roller of conveying roller is installed, also can keep the sufficient carrying capacity of conveying roller to bringing, from the resettlement section to the image forming part conveyance of sheets.
In paper transport device, paper supply unit and the image processing system of relevant the utility model, preferably, cover forms the essentially rectangular shape, has the base end part that becomes the S. A. when opening and closing; The base end part of force application part is installed in the base end part side of cover; The leading section of force application part is positioned at the leading section side of cover, supports the 2nd roll shaft, and with the 2nd roll shaft to the 1st roll shaft side application of force.
According to this preferred construction, the base end part of force application part is installed in the base end part side of the cover that relatively is difficult for warpage, and the front of force application part is positioned at the leading section side of cover, support the 2nd roll shaft and to the 2nd roll shaft to the 1st roll shaft side application of force.Thereby the base end part of force application part is not vulnerable in cover, to be easier to take place the influence of warpage of the leading section of warpage.Thus, can support the 2nd roll shaft by state more reliably to the 1st roll shaft side application of force.
In paper transport device, paper supply unit and the image processing system of relevant the utility model, preferably, force application part is a leaf spring.In the case, can be with better simply structure to the 2nd roll shaft application of force.
In paper transport device, paper supply unit and the image processing system of relevant the utility model, preferably, cover is formed by resin.More preferably, cover is formed by ABS (acrylonitrile-butadiene-styrene combined polymerization resin).
The utility model effect
According to the utility model, even under the situation that the cover warpage that constitutes a right conveying roller of conveying roller is installed, also can keep the right sufficient carrying capacity of conveying roller.
Other characteristics, key element, process, step, characteristics and the advantage of the utility model can become clearer with reference to accompanying drawing to the detailed description of the specific embodiment through following.
Description of drawings
Fig. 1 is the general profile chart of compounding machine of an embodiment of the image processing system of relevant the utility model.
Fig. 2 is the stereoscopic figure of the paper supply unit of relevant embodiment having of compounding machine.
Fig. 3 is the block diagram of the paper transport device of relevant embodiment having of paper supply unit.
Fig. 4 is the figure of the structure of the cap unit that has of expression paper transport device.
Fig. 5 is the block diagram of the force application part that has of paper transport device.
Fig. 6 is the lateral plan of the force application part that has of paper transport device.
Fig. 7 is the VII-VII cutaway view of Fig. 4.
Fig. 8 is the VIII-VIII cutaway view of Fig. 4.
The specific embodiment
Below, be elaborated with reference to the preferred implementation of accompanying drawing to the utility model.At first, with reference to the compounding machine 1 explanation schematic configuration of Fig. 1 to an embodiment of the image processing system of relevant the utility model.Fig. 1 is the general profile chart of compounding machine 1.In addition, compounding machine 1 possesses the paper transport device 3 of the embodiment of relevant the utility model.
Compounding machine 1 has the printing function of printed images on paper, also as duplicator, scanner, facsimile unit performance function.The paper transport device 3 that this compounding machine 1 has constitutes, though at the working year number through in a few years, the open-close lid 5 that driven voller 7 is installed is laterally under the situation of warpage, also keep driven voller 7 and with the sufficient carrying capacity of these driven voller 7 double-type driven rollers 6.
As shown in Figure 1, the image forming part 13 of the upside that compounding machine 1 has the image reading unit 9 that is configured in main body top, the sheet feed section 11 that is configured in lower body part and is positioned at sheet feed section 11.
On image reading unit 9, be provided with original copy pallet 15 at topmost, the original copy that is arranged on the original copy pallet 15 is discharged pallet 21 discharges via reading device 19 to original copy by auto document feeder (ADF) 17.In ADF17, the original copy that is arranged at original copy pallet 15 is got by pickup roller 23 strandings, separated backing plate 25 many separation, and carry to driven roller 27.
Around driven roller 27, dispose two driven vollers 29,31, along the bending delivery path of driven roller 27 peripheries, read position 19 with what original copy was transported to driven roller 27 downsides.Original copy is read through the reading device 33 that is configured in the downside that reads position 19, discharge pallet 21 to 35 to original copy by distributing roller and discharge.When carrying out replication processes, will print on the paper through image forming part 13 by the master copy data that reading device 33 reads.
Printing when handling, stopped that from the paper of sheet feed section 11 paper supplies roller stops an end to (レ ジ ス ト ロ one ラ to) 39 after, carried to image forming part 13 in predetermined timing.Image forming part 13 uses the electronic photo mode on paper, to form image.Therefore, image forming part 13 has along the transfer printing unit 41 and fixation unit 43 of transport path configuration.
Transfer printing unit 41 is made up of on every side charged roller 47, LED unit 49, developer roll 51 and the transfer roll 53 that are configured in photosensitive drums 45.In transfer printing unit 41, at first, after making photosensitive drums 45 charged equably, on photosensitive drums 45, form electrostatic latent image through LED unit 49 through charged roller 47.
Then, through toner is transferred on the electrostatic latent image of photosensitive drums 45 from the developer roll 51 that maintains the toner in the toner chamber 55, on photosensitive drums 45, form toner image.Then, through being transferred next paper, the toner image on the photosensitive drums 45 is transferred on the paper with photosensitive drums 45 and transfer roll 53 clampings that have been applied in voltage.
Fixation unit 43 is made up of hot-rolling 57 and air roll 59.Paper through being transferred toner image is carried with hot-rolling 57 and air roll 59 clampings, will be formed with the paper heating and the pressurization of toner image, and toner fixing is on paper, and print processing is accomplished.The paper of having printed image is arranged paper to 61 through distributing roller on discharge tray 63.
The paper feed roller that sheet feed section 11 possesses the paper bin 65 of accommodating paper, supply with paper from paper bin 65 is to 67.Paper bin 65 forms roughly rectangular shape, in paper bin 65, dispose to boost plate 73, this boost plate 73 in an end face side of paper bin 65 by spring (not shown) to the top application of force.Carry to put and be urged the state on the pickup roller 75 on top of an end face side that is being disposed at paper bin 65 at an end that boosts paper on the plate 73 and become paper.
Therefore, the paper in the paper bin 65 is rubbed with the hands through the rotation of pickup roller 75 and is got on the transport path 71.And, rubbed with the hands the paper of getting and carried 39 towards the above-mentioned roller that stops 67 by paper feed roller.Paper feed roller is made up of driven roller that is configured in paper bin 65 sides 79 and the driven voller 81 that is opposite to driven roller 79 67.Driven voller 81 is installed on the open-close lid 83 on the main body side that is installed on compounding machine 1.
It can serve as that driven voller 81 is installed on the medial surface of open-close lid 83 via roll shaft on the main body of the compounding machine 1 that opens and closes with link pin 85 that open-close lid 83 is installed in.Thereby under with open-close lid 83 closing state, driven roller 79 is opposed with driven voller 81, can the paper clamping be carried.
In addition, sheet feed section 11 has the paper supply unit 69 of the embodiment of relevant the utility model.Paper supply unit 69 is option boxes (ォ プ シ ョ Application カ セ ッ ト) of setting up as option.With reference to Fig. 2 paper supply unit 69 is described simultaneously.Fig. 2 is the stereoscopic figure of paper supply unit 69.
Paper supply unit 69 is installed in the below of paper bin 65, in this embodiment, 1 grade paper supply unit 69 is installed, but multistage paper supply unit 69 also can be installed.Paper supply unit 69 has resettlement section 87 and the paper transport device 3 in the framework 70 that is configured in rectangular shape.
Resettlement section 87 forms roughly rectangular-shaped, likewise constitutes with paper bin 65.Promptly; Through in resettlement section 87; Paper carried an end face 92 sides of putting resettlement section 87 by spring (not shown) to the boosting on the plate 89 of the top application of force, an end that becomes paper is urged the state on the pickup roller 91 on the top of an end face 92 sides that are disposed at resettlement section 87.
End face 92 sides in this resettlement section 87 dispose paper transport device 3.Simultaneously also paper transport device 3 is carried out following explanation at length with reference to Fig. 3.Fig. 3 is the block diagram of paper transport device 3.Paper transport device 3 possesses 3 pairs of conveying rollers to 93,1 pairs of roll shafts 95, open-close lid 5, force application part 97.In addition, in Fig. 2 and Fig. 3,, force application part 97 has been applied hatching in order to distinguish force application part 97 easily.
A pair of roll shaft 95 is made up of drive roller shaft 951 and driven roll shaft 952.The 1st roll shaft that drive roller shaft 951 is equivalent to put down in writing in claims, the 2nd roll shaft that driven roll shaft 952 is equivalent to put down in writing in claims.Drive roller shaft 951 and driven roll shaft 952 are configured in the top of an end face 92 of resettlement section 87, one side with the disposing abreast of the upside of an end face 92.
Drive roller shaft 951 is configured in than driven roll shaft 952 and leans on resettlement section 87 sides, is installed on the framework 70 of paper supply unit 69.In addition, an end of drive roller shaft 951 and motor 99 link, rotation under motor 99 effects.Driven roll shaft 952 is installed on the open-close lid 5 of an end face 92 sides that cover resettlement section 87 via force application part 97.In addition, also can constitute, receive the propulsive effort of motor 99, drive roller shaft 951 rotations, driven roller 6 rotations through being fixed on gear on the drive roller shaft 951.
3 pairs of conveying rollers will be carried towards image forming part 13 by pickup roller 91 paper that 97 strandings are got from the resettlement section 93.3 pairs of conveying rollers are made up of with driven voller 7 mutual opposed driven roller 6 respectively 93.The 2nd conveying roller that the 1st conveying roller that driven roller 6 is equivalent to put down in writing in claims, driven voller 7 are equivalent to put down in writing in claims.
Driven roller 6 is fixed on the drive roller shaft 951, so rotation under motor 99 effects.Driven voller 7 is installed on the driven roll shaft 952.That is, driven voller 7 is installed on the open-close lid 5 via driven roll shaft 952.
On open-close lid 5, driven voller 7, driven roll shaft 952, force application part 97 are installed, constitute cap unit 4.Fig. 4 is the front view of cap unit 4.In addition, open-close lid 5 cover that is equivalent to put down in writing in claims.
Open-close lid 5 forms the essentially rectangular shape, is configured to, and makes the long limit of extending along its length parallel with drive roller shaft 951 and driven roll shaft 952.And open-close lid 5 can be installed on the framework 70 via link pin 501 with opening and closing.The long limit that is positioned at the below in two long limits of open-close lid 5 is the base end part 503 that becomes the S. A. when opening and closing, and the long limit that is positioned at the top is a leading section 505.
Under open-close lid 5 closing state, the driven roller 6 and the resinous driven voller 7 of rubber system are opposed, can the paper clamping be carried.If open-close lid 5 is opened, then 3 pairs of driven rollers 6 leave with driven voller 7, can remove near the paper 93 being blocked in conveying roller.
Open-close lid 5 is formed by the resin of ABS (acrylonitrile-butadiene-styrene combined polymerization resin) etc.This open-close lid 5 is aging with age, the influence of on-off action, hot and humid degree environment etc., if the working year number, then has the crooked laterally tendency of central portion of leading section 505 through in a few years.
So,, be equipped with and be used for two force application parts 97 of driven roll shaft 952 to the drive roller shaft 951 side application of forces at the inner face of open-close lid 5.Fig. 5 and Fig. 6 represent to be installed in the force application part 97 of open-close lid 5 state before.Fig. 5 is the block diagram of force application part 97, and Fig. 6 is the lateral plan of force application part 97.Force application part 97 is leaf springs, for example forms through the metal sheet of corrosion-resistant steel etc. is implemented plastic working.
Force application part 97 has with tabular first 971 and the 2nd 972 that form rectangle with this first 971 and the 2nd 972 bonded assembly jump face 973.First 971 end side is mounted in the base end part 974 on the open-close lid 5, on first 971, is formed with screw 975.Through this screw 975, be formed with the slotted hole 977 of the protruding break-through that makes the location usefulness that is formed on the open-close lid 5 in leading section 976 sides.This first 971 base end part 503 sides of using screw to be installed in open-close lid 5 inner faces.
Jump face 973 is faces of holding up to the approximate vertical direction from the end of first 971 leading section 976 sides.Through forming this jump face 973, further bring into play the elasticity of force application part 97.
As shown in Figure 6, second 972 with the state of jump face 973 angulations 981 before being installed in open-close lid 5 under be 90 degree or more than 90 degree roughly.Second 972 leading section 976 sides form wide cut, and leading section 976 alongst is formed with two place's otch, are divided into 3 parts.
Middle body 978 width that are divided in 3 the part of leading section 976 are the wideest, and front end is holded up to the approximate vertical direction.Both ends 979 are more outstanding from base end side than the cocked position of the front end of middle body 978, are bent into roughly U word shape.Therefore, as shown in Figure 6, if observe force application part 97 from the side, then form the poroid support portion 980 of inserting logical driven roll shaft 952 through middle body 978 and both ends 979.
Like Fig. 3 and shown in Figure 4, in force application part 97, the base end part 974 of force application part 97 is installed in base end part 503 sides of open-close lid 5, so that the leading section 976 of force application part 97 is positioned at leading section 505 sides of open-close lid 5.Inserting the driven roll shaft 952 that leads in 3 driven vollers 7 is led to, is supported on the support portion 980 that is formed by the leading section 976 that is installed on two force application parts 97 on the open-close lid 5 by slotting.As shown in Figure 4, if from the top view of cap unit 4, then dispose driven voller 7 respectively at the central portion and the both ends of driven roll shaft 952, the leading section 976 of force application part 97 is between 3 driven vollers 7.
Fig. 7 is the VII-VII cutaway view of cap unit 4 shown in Figure 4.The VII-VII cross section is that the length direction with open-close lid 5 is vertical, the face of an end 979 of the leading section 976 through force application part 97.Fig. 7 representes cap unit 4 closing state, for reference, driven roller 6 and drive roller shaft 951 usefulness long and two-short dash linees is represented.
Under open-close lid 5 closing state, driven roller 6 is opposed with driven voller 7.For jump face 973 and second 972 angulation 981 of force application part 97, and compare under the state of opening at open-close lid 5, less under open-close lid 5 closing state.In addition, second of force application part 97 972 bending.Therefore, the elastic force of force application part 97 plays a role, and through the leading section 976 that supports driven roll shaft 952, driven roll shaft 952 is pressed to drive roller shaft 951 thrusters.
That is the 976 pairs of driven roll shafts 952 of leading section that, support driven roll shaft 952 are to the drive roller shaft 951 side application of forces.Thus, driven voller 7 is pressed against on the driven roller 6.The central portion that open-close lid 5 has a leading section 505 is the situation of warpage laterally, but through by force application part 97 driven voller 7 being pressed against on the driven roller 6, can keep the enough Clamping forces that are used for conveyance of sheets.
In addition, open-close lid 5 is like Fig. 3 and shown in Figure 4, and face is provided with a plurality of ribs 506 within it for reinforcement.Rib 506 is perpendicular to the inner face of open-close lid 5, is parallel to the short side direction of open-close lid 5 and forms.
Fig. 8 is the VIII-VIII cutaway view of cap unit 4 shown in Figure 4.The VIII-VIII cross section is the cross section that the length direction with open-close lid 5 is vertical, can see the shape of rib 506.Fig. 8 representes cap unit 4 closing state, for reference, driven roller 7 and drive roller shaft 951 usefulness long and two-short dash linees is represented.
As shown in Figure 8, on rib 506, be formed with the otch 507 that is used for avoiding driven roll shaft 952.If open-close lid 5 warpages then rib 506 be to lateral surface direction 508 displacements of open-close lid 5, but,, can not follow rib 506 so driven roll shaft 952 is independent from rib 506 owing on rib 506, be formed with otch 507.Thereby, can prevent to die down because of the Clamping force of the warpage driven voller of open-close lid 57 with driven roller 6.
Paper transport device 3 according to relevant embodiment of above explanation is equipped with force application part 97 on the inner face of open-close lid 5.And, support driven roll shaft 952 through this force application part 97, and under open-close lid 5 closing state to driven roll shaft 952 to the drive roller shaft 951 side application of forces.Therefore,, can prevent that also driven roll shaft 952 from following the warpage of open-close lid 5 and leave from drive roller shaft 951, can keep the Clamping force of driven roller 6 and driven voller 7 even at open-close lid 5 laterally under the situation of warpage.Thereby, even constitute under the situation of conveying roller to open-close lid 5 warpages of 93 driven voller 7 being equipped with, also can keep conveying roller to 93 sufficient carrying capacity.
In addition, in paper transport device 3, the base end part 974 of force application part 97 is installed in base end part 503 sides of the open-close lid 5 of more difficult warpage.In addition, the leading section 976 of force application part 97 is positioned at leading section 505 sides of open-close lid 5, support driven roll shaft 952 and with driven roll shaft 952 to the drive roller shaft 951 side application of forces.Thereby the base end part 974 of force application part 97 is not vulnerable in open-close lid 5, to be easier to take place the influence of warpage of the leading section of warpage.Thus, can support driven roll shaft 952 by state more reliably to the drive roller shaft 951 side application of forces.
The paper supply unit 69 of relevant this embodiment is owing to possess paper transport device 3, so even constitute under the situation of conveying roller to open-close lid 5 warpages of 93 driven voller 7 being equipped with, also can keep conveying roller to 93 sufficient carrying capacity.Thereby, can suppress the generation of the paperboard of the paper of 87 conveyings from the resettlement section.
The compounding machine 1 of relevant this embodiment is owing to possess paper supply unit 69, so even constitute under the situation of conveying roller to open-close lid 5 warpages of 93 driven voller 7 being equipped with, also can keep conveying roller to 93 sufficient carrying capacity.Thereby, can suppress from the resettlement section generation of the paperboard of 87 paper carried towards image forming part 13.
, also can consider on the rib 506 of open-close lid 5, to form slotted hole, in this slotted hole, insert logical driven roll shaft axle 952, through force application part to driven roll shaft 952 to the drive roller shaft 951 side application of forces.But in the case, significantly laterally under the situation of warpage, slotted hole squints laterally, inserts the driven roll shaft 952 that leads in slotted hole and also follows laterally at thereby open-close lid 5 former because of certain.Thus, driven roller 6 descends with the Clamping force of driven voller 7.
With respect to this, in the paper transport device 3 of relevant this embodiment, because driven roll shaft 952 supported by force application part 97, and by to drive roller shaft 952 application of forces, so do not follow the warpage of open-close lid 5, and can keep Clamping force.
More than, the embodiment of the utility model is illustrated, but the utility model is not limited to above-mentioned embodiment, can carry out various distortion.For example, in the above-described embodiment, be illustrated as the situation in the paper supply unit 69 of option box performance function paper transport device 3 is carried, but be not limited thereto.Also can be with the paper transport device of relevant the utility model as being used for and carry compounding machine 1 from the device of paper bin 65 conveyance of sheets of compounding machine 1.
In the case, being located near the paper bin 65 above-mentioned driven roller 79 and driven voller 81, to be equivalent to the conveying roller that the paper transport device of the utility model possesses right, and open-close lid 83 is equivalent to the cover that the paper transport device of the utility model possesses.Inserting the roll shaft that leads in driven roller 79 is installed on compounding machine 1 main body.And force application part is installed on the open-close lid 83.In addition, the leading section of force application part supports the roll shaft of driven voller 81, and under open-close lid 83 closing state, and the leading section of force application part is to the roll shaft of the driven voller 81 roll shaft side application of force to driven roller 79.In the case, even under the situation of open-close lid 83 warpages, also can keep the sufficient carrying capacity that driven voller 81 that is installed on the open-close lid 83 and the driven roller 79 that is opposite to this driven voller 81 bring.
In addition, also can the paper transport device of relevant the utility model be carried paper sheet delivery in compounding machine 1 to the device that reads position 19 in ADF17 as being used for.In the case, above-mentioned driven roller 27 and driven voller 29 are right corresponding to the conveying roller that the paper transport device of the utility model possesses, and the lid 30 that is positioned at driven voller 29 tops is equivalent to the cover that the paper transport device of the utility model possesses.Inserting the roll shaft that leads in driven roller 27 is installed on compounding machine 1 main body.Lid 30 can constitute with opening and closing, at inner face force application part is installed.The leading section of force application part supports the roll shaft of driven voller 29, and under lid 30 closing state, and the leading section of force application part is to the roll shaft of the driven voller 29 roll shaft side application of force to driven roller 27.In the case, even under the situation of cover 30 warpages, also can keep the sufficient carrying capacity that driven voller 29 that is installed on the cover 30 and the driven roller 27 that is opposite to this driven voller 29 bring.
Abovely the utility model has been described with reference to the specific embodiment; But for a person skilled in the art, obviously can make amendment to above-mentioned utility model or find out many embodiments beyond the embodiment of concrete open hereinbefore and record through variety of way.Thereby claims comprise the purport of the utility model and all changes in the technical scope.

Claims (15)

1. paper transport device comprises:
Conveying roller is right, and the 2nd conveying roller that has the 1st conveying roller and be opposite to the 1st conveying roller is used for conveyance of sheets;
The 1st roll shaft is inserted and is led in above-mentioned the 1st conveying roller;
The 2nd roll shaft is inserted and is led in above-mentioned the 2nd conveying roller; And
Cover to be opened/closed;
This paper transport device is characterised in that,
Comprise force application part, be mounted in the inner face of above-mentioned cover, and support the force application part of above-mentioned the 2nd roll shaft, under above-mentioned cover closing state to above-mentioned the 2nd roll shaft to above-mentioned the 1st roll shaft side application of force.
2. paper transport device as claimed in claim 1 is characterized in that,
Above-mentioned cover forms the essentially rectangular shape, has the base end part that becomes the S. A. when opening and closing;
The base end part of above-mentioned force application part is installed in the base end part side of above-mentioned cover;
The leading section of above-mentioned force application part is positioned at the leading section side of above-mentioned cover, supports above-mentioned the 2nd roll shaft, and to the 2nd roll shaft to above-mentioned the 1st roll shaft side application of force.
3. paper transport device as claimed in claim 1 is characterized in that,
Above-mentioned force application part is a leaf spring.
4. paper transport device as claimed in claim 1 is characterized in that,
Above-mentioned cover is formed by resin.
5. paper transport device as claimed in claim 4 is characterized in that,
Above-mentioned cover is formed by ABS, and this ABS is an acrylonitrile-butadiene-styrene combined polymerization resin.
6. paper supply unit comprises:
Paper is accommodated in the resettlement section; And
Paper transport device, the conveyance of sheets from above-mentioned resettlement section;
Above-mentioned paper transport device comprises:
Conveying roller is right, and the 2nd conveying roller that has the 1st conveying roller and be opposite to the 1st conveying roller is used for conveyance of sheets;
The 1st roll shaft is inserted and is led in above-mentioned the 1st conveying roller;
The 2nd roll shaft is inserted and is led in above-mentioned the 2nd conveying roller; And
Cover to be opened/closed;
This paper supply unit is characterised in that,
Comprise force application part, be mounted in the inner face of above-mentioned cover, and support the force application part of above-mentioned the 2nd roll shaft, under above-mentioned cover closing state to above-mentioned the 2nd roll shaft to above-mentioned the 1st roll shaft side application of force.
7. paper supply unit as claimed in claim 6 is characterized in that,
Above-mentioned cover forms the essentially rectangular shape, has the base end part that becomes the S. A. when opening and closing;
The base end part of above-mentioned force application part is installed in the base end part side of above-mentioned cover;
The leading section of above-mentioned force application part is positioned at the leading section side of above-mentioned cover, supports above-mentioned the 2nd roll shaft, and to the 2nd roll shaft to above-mentioned the 1st roll shaft side application of force.
8. paper supply unit as claimed in claim 6 is characterized in that,
Above-mentioned force application part is a leaf spring.
9. paper supply unit as claimed in claim 6 is characterized in that,
Above-mentioned cover is formed by resin.
10. paper supply unit as claimed in claim 9 is characterized in that,
Above-mentioned cover is formed by ABS, and this ABS is an acrylonitrile-butadiene-styrene combined polymerization resin.
11. an image processing system comprises:
Image forming part forms image on paper;
Paper is accommodated in the resettlement section; And
Paper transport device is carried the paper that is contained in this resettlement section to above-mentioned image forming part;
Above-mentioned paper transport device comprises:
Conveying roller is right, and the 2nd conveying roller that has the 1st conveying roller and be opposite to the 1st conveying roller is used for conveyance of sheets;
The 1st roll shaft is inserted and is led in above-mentioned the 1st conveying roller;
The 2nd roll shaft is inserted and is led in above-mentioned the 2nd conveying roller; And
Cover to be opened/closed;
This image processing system is characterised in that,
Comprise force application part, be mounted in the inner face of above-mentioned cover, and support the force application part of above-mentioned the 2nd roll shaft, under above-mentioned cover closing state to above-mentioned the 2nd roll shaft to above-mentioned the 1st roll shaft side application of force.
12. image processing system as claimed in claim 11 is characterized in that,
Above-mentioned cover forms the essentially rectangular shape, has the base end part that becomes the S. A. when opening and closing;
The base end part of above-mentioned force application part is installed in the base end part side of above-mentioned cover;
The leading section of above-mentioned force application part is positioned at the leading section side of above-mentioned cover, supports above-mentioned the 2nd roll shaft, and to the 2nd roll shaft to above-mentioned the 1st roll shaft side application of force.
13. image processing system as claimed in claim 11 is characterized in that,
Above-mentioned force application part is a leaf spring.
14. image processing system as claimed in claim 11 is characterized in that,
Above-mentioned cover is formed by resin.
15. image processing system as claimed in claim 14 is characterized in that,
Above-mentioned cover is formed by ABS, and this ABS is an acrylonitrile-butadiene-styrene combined polymerization resin.
CN2011201378419U 2010-05-12 2011-05-04 Paper transmitting device, paper supplying unit and image forming device Expired - Fee Related CN202156798U (en)

Applications Claiming Priority (2)

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JP2010110409A JP2011236033A (en) 2010-05-12 2010-05-12 Paper transporting apparatus, paper feeding unit, and image forming apparatus

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KR20110125167A (en) 2011-11-18
EP2386508A3 (en) 2014-04-09

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