JP2019128423A5 - - Google Patents

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JP2019128423A5
JP2019128423A5 JP2018009113A JP2018009113A JP2019128423A5 JP 2019128423 A5 JP2019128423 A5 JP 2019128423A5 JP 2018009113 A JP2018009113 A JP 2018009113A JP 2018009113 A JP2018009113 A JP 2018009113A JP 2019128423 A5 JP2019128423 A5 JP 2019128423A5
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Japan
Prior art keywords
region
spiral blade
plate
screw
developing apparatus
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JP2018009113A
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Japanese (ja)
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JP7043270B2 (en
JP2019128423A (en
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Priority to JP2018009113A priority Critical patent/JP7043270B2/en
Priority claimed from JP2018009113A external-priority patent/JP7043270B2/en
Priority to US16/253,566 priority patent/US10739701B2/en
Publication of JP2019128423A publication Critical patent/JP2019128423A/en
Publication of JP2019128423A5 publication Critical patent/JP2019128423A5/ja
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Description

本発明の一実施形態に係る現像装置は、トナーとキャリアを含む現像剤を収容する現像容器と、前記現像容器内に回転可能に設けられ、回転軸と、前記回転軸の周りに形成され多条の螺旋羽根を形成する第一螺旋羽根と第二螺旋羽根とを有し、前記現像容器内で現像剤を搬送方向に搬送する搬送スクリューと、を備え、前記搬送スクリューは、前記搬送方向において、前記第一螺旋羽根と前記第二螺旋羽根との間の前記回転軸上に板状の突出部が設けられた第一領域と、前記第一領域の下流に前記第一領域に隣接し、前記第一螺旋羽根と前記第二螺旋羽根との間の前記回転軸上に板状の突出部が設けられていない第二領域とを有し、前記第一領域に設けられる板状の突出部は、前記搬送方向において、上流側で隣接する螺旋羽根に接しておらず、下流側で隣接する螺旋羽根に接している、ことを特徴とする。 A developing device according to an embodiment of the present invention includes a developing container for accommodating a developer including toner and carrier, rotatably provided in said developer container, a rotary shaft, is formed around the rotary shaft and a first helical blade and the second spiral blade for forming a multi-strip helical blade, and a conveying screw for conveying the developer in the conveyance direction in the developing container, wherein the transport screw, the conveyor In the direction, a first region provided with a plate-shaped protrusion on the rotation axis between the first spiral blade and the second spiral blade, and adjacent to the first region downstream of the first region. A plate-shaped region provided in the first region , which has a second region between the first spiral blade and the second spiral blade without a plate-shaped protrusion on the rotation axis. protrusions Oite in the transport direction, not in contact with screw旋羽root you adjacent the upstream side to contact with the screw旋羽root it adjacent downstream, it is characterized.

Claims (5)

トナーとキャリアを含む現像剤を収容する現像容器と、
前記現像容器内に回転可能に設けられ、回転軸と、前記回転軸の周りに形成され多条の螺旋羽根を形成する第一螺旋羽根と第二螺旋羽根とを有し、前記現像容器内で現像剤を搬送方向に搬送する搬送スクリューと、を備え、
前記搬送スクリューは、前記搬送方向において、前記第一螺旋羽根と前記第二螺旋羽根との間の前記回転軸上に板状の突出部が設けられた第一領域と、前記第一領域の下流に前記第一領域に隣接し、前記第一螺旋羽根と前記第二螺旋羽根との間の前記回転軸上に板状の突出部が設けられていない第二領域とを有し、
前記第一領域に設けられる板状の突出部は、前記搬送方向において、上流側で隣接する螺旋羽根に接しておらず、下流側で隣接する螺旋羽根に接している、
ことを特徴とする現像装置。 A developing container that houses the developer containing toner and carriers,
Rotatably provided in the developer container has a rotary shaft and a first helical blade and the second spiral blade forming a spiral blade of a multi-strip is formed around the rotary shaft, wherein the developer container in comprising a conveying screw for conveying the developer in the conveyance direction, and
The transport screw has a first region provided with a plate-shaped protrusion on the rotation axis between the first spiral blade and the second spiral blade in the transport direction, and downstream of the first region. Has a second region adjacent to the first region and not provided with a plate-shaped protrusion on the rotation axis between the first spiral blade and the second spiral blade.
The plate-like projecting portion provided in the first region, Oite in the transport direction, not in contact with screw旋羽root you adjacent the upstream side to contact with the screw旋羽root you adjacent downstream ,
A developing device characterized by this. 前記搬送スクリューは、前記搬送方向に前記第一領域と前記第二領域とが交互に設けられている、
ことを特徴とする請求項１に記載の現像装置。 The conveying screw, wherein the conveying direction first region and said second region are alternately provided,
The developing apparatus according to claim 1. 前記板状の突出部の回転直径は、前記第一領域における前記第一螺旋羽根の回転直径と実質的に等しい、The rotation diameter of the plate-shaped protrusion is substantially equal to the rotation diameter of the first spiral blade in the first region.
ことを特徴とする請求項１又は２に記載の現像装置。The developing apparatus according to claim 1 or 2. 前記板状の突出部の回転直径は、前記第一領域における前記第二螺旋羽根の回転直径と実質的に等しい、The rotation diameter of the plate-shaped protrusion is substantially equal to the rotation diameter of the second spiral blade in the first region.
ことを特徴とする請求項１又は２に記載の現像装置。The developing apparatus according to claim 1 or 2. 前記搬送スクリューは、前記第一領域における前記第一螺旋羽根と前記第二螺旋羽根との間の前記回転軸上に、前記板状の突出部が複数設けられている、The transport screw is provided with a plurality of plate-shaped protrusions on the rotation axis between the first spiral blade and the second spiral blade in the first region.
ことを特徴とする請求項１乃至４のいずれか１項に記載の現像装置。The developing apparatus according to any one of claims 1 to 4, wherein the developing apparatus is characterized by this.
JP2018009113A 2018-01-23 2018-01-23 Developer Active JP7043270B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2018009113A JP7043270B2 (en) 2018-01-23 2018-01-23 Developer
US16/253,566 US10739701B2 (en) 2018-01-23 2019-01-22 Developing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2018009113A JP7043270B2 (en) 2018-01-23 2018-01-23 Developer

Publications (3)

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JP2019128423A JP2019128423A (en) 2019-08-01
JP2019128423A5 true JP2019128423A5 (en) 2021-02-25
JP7043270B2 JP7043270B2 (en) 2022-03-29

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JP2018009113A Active JP7043270B2 (en) 2018-01-23 2018-01-23 Developer

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230128561A1 (en) * 2021-04-07 2023-04-27 Mizuyoke Co., Ltd. Mixing blade and mixing apparatus for liquids

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2936713B2 (en) * 1990-11-30 1999-08-23 日立工機株式会社 Developing device
JP4410983B2 (en) * 2002-10-30 2010-02-10 パナソニック コミュニケーションズ株式会社 Developing device and image forming apparatus
JP2004233597A (en) * 2003-01-30 2004-08-19 Kyocera Mita Corp Developing device
JP2006098540A (en) * 2004-09-28 2006-04-13 Sharp Corp Developing device
US8478170B2 (en) * 2010-09-29 2013-07-02 Eastman Kodak Company Methods for operating development station auger
JP2019045798A (en) * 2017-09-06 2019-03-22 コニカミノルタ株式会社 Developing device and image forming apparatus

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