JP2008195512A - Conveying plate ground-contact structure for image forming device - Google Patents

Conveying plate ground-contact structure for image forming device Download PDF

Info

Publication number
JP2008195512A
JP2008195512A JP2007034344A JP2007034344A JP2008195512A JP 2008195512 A JP2008195512 A JP 2008195512A JP 2007034344 A JP2007034344 A JP 2007034344A JP 2007034344 A JP2007034344 A JP 2007034344A JP 2008195512 A JP2008195512 A JP 2008195512A
Authority
JP
Japan
Prior art keywords
conveying plate
resin base
spring
plate
compression coil
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.)
Pending
Application number
JP2007034344A
Other languages
Japanese (ja)
Inventor
Kuniaki Araishi
邦亮 新石
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kyocera Document Solutions Inc
Original Assignee
Kyocera Mita Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kyocera Mita Corp filed Critical Kyocera Mita Corp
Priority to JP2007034344A priority Critical patent/JP2008195512A/en
Publication of JP2008195512A publication Critical patent/JP2008195512A/en
Pending legal-status Critical Current

Links

Images

Landscapes

  • Electrophotography Configuration And Component (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a conveying plate ground-contact structure for an image forming device capable of certainly performing ground-contact of a conveying plate by a simple constitution and attaining cost reduction by eliminating an earth plate spring. <P>SOLUTION: In the conveying plate ground-contact structure for the image forming device, the conveying plate 1 is ground-contacted by electrically connecting the conveying plate 1 arranged on a resin base 2 to the ground-contacted sheet metal frame 4. One compression coil spring 5a of a wire spring 5 in which the compression coil springs 5a, 5b at both ends are connected by a wire material 5c is contractedly attached between the resin base 2 and the conveying plate 1, and the other compression coil spring 5b is contractedly attached between the resin base 2 and the sheet metal frame 4 to perform ground-contact of the conveying plate 1. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、画像形成装置に設けられた搬送板の接地構造に関するものである。   The present invention relates to a grounding structure for a conveying plate provided in an image forming apparatus.

画像形成装置では、画像を形成した後の用紙を定着装置に搬送する搬送路上において、用紙上のトナーは、転写装置により強制的に電荷を付与することによって電気的に引っ張られている。定着装置への用紙搬送が安定して行われないと、紙シワ、耳折れ等の不具合が生じるために、通常、用紙搬送を安定させるため、樹脂フレームに設けられた搬送リブに沿わせるように搬送経路が設定されている。このとき、樹脂リブのみの構成では、用紙をリブに安定的に沿わせて搬送するのが難しく、波打ちながら搬送されているために用紙上のトナーが飛散する。これを導電性のリブとすると用紙はリブに沿って搬送させることができるが、静電気によって用紙上のトナーが乱れるという不具合が発生する。用紙を搬送リブに沿わせて、且つ、波打ちを起こさないように搬送させるために、搬送リブを樹脂として、その下に用紙に当たらないように導電性部材を配置して用紙上のトナーの乱れを起こすことなく安定して搬送する方法が一般に用いられている。   In the image forming apparatus, on the transport path for transporting the paper on which the image has been formed to the fixing device, the toner on the paper is electrically pulled by forcibly applying a charge by the transfer device. If paper transport to the fixing device is not carried out stably, problems such as paper wrinkles and ear folds will occur. Normally, in order to stabilize paper transport, follow the transport ribs provided on the resin frame. A transport route is set. At this time, it is difficult to convey the paper stably along the rib with the configuration of only the resin rib, and the toner on the paper is scattered because it is conveyed while undulating. If this is a conductive rib, the paper can be transported along the rib, but there is a problem that the toner on the paper is disturbed by static electricity. In order to transport the paper along the transport ribs without causing undulations, the transport rib is made of resin, and a conductive member is placed underneath so as not to hit the paper. In general, a method of stably transporting without causing any trouble is used.

例えば、特許文献1には、搬送板の端面にアース板バネを横方向から当接させることによって搬送板の接地を行う構成が開示されている。
特開2000−338795号公報
For example, Patent Document 1 discloses a configuration in which a ground plate spring is brought into contact with the end surface of the transport plate from the lateral direction to ground the transport plate.
JP 2000-338895 A

しかしながら、特許文献1に開示されたような搬送板の接地をアース板バネの横方向からの当接によって行う構成では、アース板バネの変形等によってアース接点が不安定になる可能性がある。   However, in the configuration in which the grounding of the transport plate as disclosed in Patent Document 1 is performed by contact of the ground plate spring from the lateral direction, the ground contact may become unstable due to deformation of the ground plate spring or the like.

又、搬送板の接地にアース板バネを使用すると、それを成形するための金型が複雑化するとともに、アース板の展開形状によっては材料取りに無駄が多くなって歩留まりの低下を招くという問題がある。   In addition, when a ground plate spring is used for grounding the transport plate, the mold for molding it becomes complicated, and depending on the developed shape of the ground plate, there is a problem that the material is wasted and the yield is reduced. There is.

本発明は上記問題に鑑みてなされたもので、その目的とする処は、簡易な構成で搬送板の接地を確実に行うとともに、アース板バネを廃してコストダウンを図ることができる画像形成装置の搬送板接地構造を提供することにある。   SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object thereof is an image forming apparatus capable of reliably grounding the transport plate with a simple configuration and reducing the cost by eliminating the ground plate spring. It is in providing the conveyance board grounding structure of this.

上記目的を達成するため、請求項1記載の発明は、樹脂ベース上に配設された搬送板と接地された板金フレームとを電気的に接続することによって前記搬送板を接地するようにした画像形成装置の搬送板接地構造において、両端の圧縮コイルバネを線材で連結して成る線バネの一方の圧縮コイルバネを前記樹脂ベースと前記搬送板の間に縮装するとともに、他方の圧縮コイルバネを前記樹脂ベースと前記板金フレームの間に縮装して前記搬送板を接地することを特徴とする。   In order to achieve the above object, according to the first aspect of the present invention, there is provided an image in which the conveyance plate is grounded by electrically connecting the conveyance plate disposed on the resin base and a grounded sheet metal frame. In the conveying plate grounding structure of the forming apparatus, one compression coil spring of a wire spring formed by connecting compression coil springs at both ends with a wire rod is compressed between the resin base and the conveyance plate, and the other compression coil spring is connected to the resin base. The conveyance plate is grounded by being compacted between the sheet metal frames.

請求項2記載の発明は、請求項1記載の発明において、前記樹脂ベースの前記搬送板及び板金フレームの設置面に段凹部を形成し、該段凹部に立設されたボス部に前記線バネの圧縮コイルバネを装着したことを特徴とする。   According to a second aspect of the present invention, in the first aspect of the present invention, a stepped recess is formed in the installation surface of the transport plate and the sheet metal frame of the resin base, and the wire spring is provided on a boss portion erected on the stepped recess. A compression coil spring is attached.

請求項1記載の発明によれば、線バネの一方の圧縮コイルバネを樹脂ベースと搬送板の間に縮装するとともに、他方の圧縮コイルバネを樹脂ベースと板金フレームの間に縮装して搬送板を接地するようにしたため、簡易な構成で搬送板の接地を確実に行うことができる。又、従来用いていたアース板バネから線バネとすることで、部品作製時の金型が不要となることや、部品取り扱い時に板バネでは曲がり等に注意を要する等の扱いに難点があったことが線バネでは部品取り扱い時にもそれほど注意を必要とせず、金型費や部品扱いでの管理費等が削減できる。更に、スペースを取らないように、圧縮コイルバネ間をそのコイルバネを形成する線材で結んで使用するため、省スペース化を図ることができ、画像形成装置の小型化にも対応することができる。   According to the first aspect of the present invention, one compression coil spring of the wire spring is contracted between the resin base and the transport plate, and the other compression coil spring is contracted between the resin base and the sheet metal frame to ground the transport plate. Thus, the conveyance plate can be reliably grounded with a simple configuration. In addition, by using a wire spring instead of a ground leaf spring that has been used in the past, there is a difficulty in handling such as the need for a mold when manufacturing the component and the need to bend the leaf spring when handling the component. However, wire springs do not require much attention when handling parts, and can reduce mold costs and management costs for handling parts. Further, since the compression coil springs are connected with a wire forming the coil spring so as not to take up space, the space can be saved, and the image forming apparatus can be reduced in size.

請求項2記載の発明によれば、樹脂ベースの搬送板及び板金フレームの設置面に段凹部を形成し、この段凹部に立設されたボス部に線バネの圧縮コイルバネを装着するようにしたため、線バネの圧縮コイルバネが樹脂ベースと搬送板及び板金フレームの間にそれぞれ確実に固定されて脱落することがなく、組立性の改善が図られるとともに、位置が固定されることから搬送板の接地を確実に行うことができる。   According to the second aspect of the present invention, the stepped recess is formed on the installation surface of the resin-based transport plate and the sheet metal frame, and the compression coil spring of the wire spring is attached to the boss portion standing on the stepped recess. The wire spring compression coil spring is securely fixed between the resin base, the transport plate and the sheet metal frame, so that it does not fall off. Can be performed reliably.

以下に本発明の実施の形態を添付図面に基づいて説明する。   Embodiments of the present invention will be described below with reference to the accompanying drawings.

図1及び図2は本発明に係る画像形成装置の搬送板接地構造を示す部分斜視図、図3は図2のA−A断面図である。但し、図1及び図2の5aは搬送板1の下に縮装されるが、配置関係が理解し易いように圧縮バネが伸びた状態で図示してある。   1 and 2 are partial perspective views showing a conveying plate grounding structure of an image forming apparatus according to the present invention, and FIG. 3 is a cross-sectional view taken along line AA of FIG. However, although 5a of FIG.1 and FIG.2 is shrink | fitted under the conveyance board 1, it has illustrated in the state which the compression spring extended so that arrangement | positioning relationship may be understood easily.

図1及び図2において、1はプリンタ等の画像形成装置において用紙の搬送をガイドするための搬送板であって、この搬送板1は、樹脂ベース2上に設けられた搬送リブ2eの部品のみが突出するように溝が切られた導電性を持つ板金で、樹脂ベース2に搬送リブ2eが搬送板1から突出するように覆い被せて取り付けられている。   1 and 2, reference numeral 1 denotes a conveyance plate for guiding the conveyance of a sheet in an image forming apparatus such as a printer. The conveyance plate 1 is only a component of a conveyance rib 2 e provided on a resin base 2. Is a conductive sheet metal having a groove cut so as to protrude, and the transport rib 2 e is attached to the resin base 2 so as to protrude from the transport plate 1.

更に、図2及び図3において、4は接地された板金フレームであって、この板金フレーム4は、樹脂ベース2上に垂直に立設されている。   Further, in FIGS. 2 and 3, 4 is a grounded sheet metal frame, and the sheet metal frame 4 is erected vertically on the resin base 2.

而して、本実施の形態では、搬送板1は、線バネ5によって板金フレーム4に電気的に接続することによって接地されている。ここで、線バネ5は、両端の圧縮コイルバネ5a,5bを線材5cで連結して構成されており、該線バネ5の一方の圧縮コイルバネ5aは、樹脂ベース2と搬送板1の間に縮装され、他方の圧縮コイルバネ5bは、樹脂ベース2と板金フレーム4の間に縮装されている。   Thus, in the present embodiment, the conveying plate 1 is grounded by being electrically connected to the sheet metal frame 4 by the wire spring 5. Here, the wire spring 5 is configured by connecting compression coil springs 5 a and 5 b at both ends with a wire 5 c, and one compression coil spring 5 a of the wire spring 5 is compressed between the resin base 2 and the transport plate 1. The other compression coil spring 5 b is mounted between the resin base 2 and the sheet metal frame 4.

更に詳細には、図3に示すように、樹脂ベース2の搬送板1及び板金フレーム4の設置面には段凹部2a,2bがそれぞれ形成されており、各段凹部2a,2bには円筒状のボス部2c,2dがそれぞれ一体に立設されている。そして、これらのボス部2c,2dに線バネ5の圧縮コイルバネ5a,5bがそれぞれ上方から嵌め込まれて装着されている。   More specifically, as shown in FIG. 3, step recesses 2a and 2b are respectively formed on the installation surfaces of the transport plate 1 and the sheet metal frame 4 of the resin base 2, and each step recess 2a and 2b has a cylindrical shape. The boss portions 2c and 2d are integrally erected. Then, the compression coil springs 5a and 5b of the wire spring 5 are fitted into the boss portions 2c and 2d from above.

而して、本実施の形態では、線バネ5の一方の圧縮コイルバネ5aを樹脂ベース2と搬送板1の間に縮装するとともに、他方の圧縮コイルバネ5bを樹脂ベース2と板金フレーム4の間に縮装して搬送板1を接地するようにしたため、簡易な構成で搬送板1の接地を確実に行うことができる。   Thus, in the present embodiment, one compression coil spring 5a of the wire spring 5 is compressed between the resin base 2 and the conveying plate 1, and the other compression coil spring 5b is interposed between the resin base 2 and the sheet metal frame 4. Since the transport plate 1 is grounded to the ground, the transport plate 1 can be reliably grounded with a simple configuration.

従来用いていたアース板バネから線バネ5とすることで、部品作製時の金型が不要となることや、部品取り扱い時に板バネでは曲がり等を注意する等の扱いに難点があったことが線バネ5では部品取り扱い時にもそれほど注意を必要とせず、金型費や部品扱いでの管理費等が削減できる。   By using the wire spring 5 instead of the ground leaf spring that has been used in the past, there is no need for a mold for manufacturing parts, and there were difficulties in handling such as bending the leaf spring when handling parts. The wire spring 5 does not require much attention when handling parts, and can reduce mold costs and management costs for handling parts.

更に、スペースを取らない線材で圧縮バネ5と、それを結ぶことで、省スペース化を図ることができ、画像形成装置の小型化にも対応することができる。   Further, by connecting the compression spring 5 with a wire that does not take up space, the space can be saved and the image forming apparatus can be reduced in size.

又、本実施の形態では、樹脂ベース2の搬送板1及び板金フレーム4の設置面に段凹部2a,2bをそれぞれ形成し、これらの段凹部2a,2bに立設された各ボス部2c,2dに線バネ5の圧縮コイルバネ5a,5bをそれぞれ装着するようにしたため、線バネ5の圧縮コイルバネ5a,5bが樹脂ベース2と搬送板1及び板金フレーム4の間にそれぞれ確実に固定されて脱落することがなく、搬送板1の接地を確実に行うことができる。他の線バネ5の圧縮コイルバネ5a,5bの樹脂ベース2への固定方法として、段凹部2a,2bを圧縮コイルバネ5a,5bの外径が嵌まり込む円形として組み込むことで位置を特定することが可能となる。   Further, in the present embodiment, stepped recesses 2a and 2b are respectively formed on the installation surfaces of the transport plate 1 and the sheet metal frame 4 of the resin base 2, and the respective boss portions 2c provided upright in these stepped recesses 2a and 2b, Since the compression coil springs 5a and 5b of the wire spring 5 are respectively attached to 2d, the compression coil springs 5a and 5b of the wire spring 5 are securely fixed between the resin base 2, the transport plate 1 and the sheet metal frame 4 and dropped off. The transport plate 1 can be reliably grounded. As a method for fixing the compression coil springs 5a and 5b of the other wire springs 5 to the resin base 2, the position can be specified by incorporating the step recesses 2a and 2b as circular shapes into which the outer diameters of the compression coil springs 5a and 5b are fitted. It becomes possible.

本発明に係る画像形成装置の搬送板接地構造を示す部分斜視図である。FIG. 3 is a partial perspective view illustrating a conveyance plate grounding structure of the image forming apparatus according to the present invention. 本発明に係る画像形成装置の搬送板接地構造を示す部分斜視図である。FIG. 3 is a partial perspective view illustrating a conveyance plate grounding structure of the image forming apparatus according to the present invention. 図2のA−A線断面図である。It is the sectional view on the AA line of FIG.

符号の説明Explanation of symbols

1 搬送板(導電性部材)
1a 金属板(搬送板の搬送リブより下に配置される部分)
2 樹脂ベース
2a,2b 樹脂ベースの段凹部
2c,2d 樹脂ベースのボス部
2e 搬送リブ
3 転写ローラ
4 板金フレーム
5 線バネ
5a,5b 線バネの圧縮コイルバネ
5c 線バネの線材
1 Transport plate (conductive member)
1a Metal plate (part located below the transport rib of the transport plate)
2 Resin base 2a, 2b Resin base step 2c, 2d Resin base boss 2e Transport rib 3 Transfer roller 4 Sheet metal frame 5 Wire spring 5a, 5b Wire spring compression coil spring 5c Wire spring wire

Claims (2)

樹脂ベース上に配設された搬送板と接地された板金フレームとを電気的に接続することによって前記搬送板を接地するようにした画像形成装置の搬送板接地構造において、
両端の圧縮コイルバネを線材で連結して成る線バネの一方の圧縮コイルバネを前記樹脂ベースと前記搬送板の間に縮装するとともに、他方の圧縮コイルバネを前記樹脂ベースと前記板金フレームの間に縮装して前記搬送板を接地することを特徴とする画像形成装置の搬送板接地構造。
In the conveying plate grounding structure of the image forming apparatus in which the conveying plate is grounded by electrically connecting a conveying plate disposed on the resin base and a grounded sheet metal frame,
One compression coil spring of a wire spring formed by connecting compression coil springs at both ends with a wire rod is compressed between the resin base and the transport plate, and the other compression coil spring is compressed between the resin base and the sheet metal frame. A conveying plate grounding structure for an image forming apparatus, wherein the conveying plate is grounded.
前記樹脂ベースの前記搬送板及び板金フレームの設置面に段凹部を形成し、該段凹部に立設されたボス部に前記線バネの圧縮コイルバネを装着したことを特徴とする請求項1記載の画像形成装置の搬送板接地構造。
2. The compression spring of the wire spring is attached to a boss formed upright in the stepped recess, with a stepped recess formed in the installation surface of the transport plate and the sheet metal frame of the resin base. Conveying plate grounding structure of the image forming apparatus.
JP2007034344A 2007-02-15 2007-02-15 Conveying plate ground-contact structure for image forming device Pending JP2008195512A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2007034344A JP2008195512A (en) 2007-02-15 2007-02-15 Conveying plate ground-contact structure for image forming device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007034344A JP2008195512A (en) 2007-02-15 2007-02-15 Conveying plate ground-contact structure for image forming device

Publications (1)

Publication Number Publication Date
JP2008195512A true JP2008195512A (en) 2008-08-28

Family

ID=39754816

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2007034344A Pending JP2008195512A (en) 2007-02-15 2007-02-15 Conveying plate ground-contact structure for image forming device

Country Status (1)

Country Link
JP (1) JP2008195512A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103792806A (en) * 2012-10-31 2014-05-14 兄弟工业株式会社 Image forming device
JP2017036119A (en) * 2015-08-10 2017-02-16 京セラドキュメントソリューションズ株式会社 Sheet conveyance device and image formation apparatus having the same
JP2017062439A (en) * 2015-09-25 2017-03-30 富士ゼロックス株式会社 Charging unit and image forming apparatus
CN106556988A (en) * 2015-09-25 2017-04-05 富士施乐株式会社 Charhing unit

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07320805A (en) * 1994-05-25 1995-12-08 Brother Ind Ltd Wiring connection device
JP2005080128A (en) * 2003-09-02 2005-03-24 Brother Ind Ltd Image scanner and complex machine equipped with the same
JP2006315826A (en) * 2005-05-13 2006-11-24 Kyocera Mita Corp Paper carrying guide and image forming device provided therewith

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07320805A (en) * 1994-05-25 1995-12-08 Brother Ind Ltd Wiring connection device
JP2005080128A (en) * 2003-09-02 2005-03-24 Brother Ind Ltd Image scanner and complex machine equipped with the same
JP2006315826A (en) * 2005-05-13 2006-11-24 Kyocera Mita Corp Paper carrying guide and image forming device provided therewith

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103792806A (en) * 2012-10-31 2014-05-14 兄弟工业株式会社 Image forming device
JP2017036119A (en) * 2015-08-10 2017-02-16 京セラドキュメントソリューションズ株式会社 Sheet conveyance device and image formation apparatus having the same
JP2017062439A (en) * 2015-09-25 2017-03-30 富士ゼロックス株式会社 Charging unit and image forming apparatus
CN106556988A (en) * 2015-09-25 2017-04-05 富士施乐株式会社 Charhing unit
CN106556988B (en) * 2015-09-25 2021-03-09 富士施乐株式会社 Charging unit

Similar Documents

Publication Publication Date Title
JP2008195512A (en) Conveying plate ground-contact structure for image forming device
JP6351485B2 (en) Structure of image forming apparatus
JP2007292902A (en) Image forming apparatus
CN107179669B (en) Image forming apparatus with a toner supply device
JP5174473B2 (en) Spring contact structure of image forming apparatus
KR101486151B1 (en) Printer device
US20110062657A1 (en) Side edge sheet curler for sheet hold down devices
JP6889838B2 (en) Terminal bracket
JP6304112B2 (en) Image forming apparatus
US10126699B2 (en) Photosensitive drum unit and image forming apparatus
JP6201559B2 (en) Image forming apparatus
JP6602424B2 (en) Frame structure, sheet storage device, and image forming apparatus
JP2015009885A (en) Packaging material for resin film roll
JPH10157928A (en) Conveying roller with spring for cable conveying line bending part
CN212305113U (en) Switching power supply shell
CN103964231A (en) Sheet feeder
JP6431357B2 (en) Terminal chain
JP2002347962A (en) Paper feeder
EP2703318A1 (en) Pulp molded cushioning material and packing case provided with same
CN201000546Y (en) Processing box for laser printer
JP2016143031A (en) Copier and its support member
JP6625850B2 (en) Electric contact structure and image forming apparatus having the same
JP2017054589A (en) Terminal fitting and chain terminal
CN102346405B (en) Electrostatic charger device and image forming apparatus
JP2006091689A (en) Image forming apparatus

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20100121

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20110907

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20110914

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20120125