JP2003066663A - Roller for image forming device - Google Patents

Roller for image forming device

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Publication number
JP2003066663A
JP2003066663A JP2001251384A JP2001251384A JP2003066663A JP 2003066663 A JP2003066663 A JP 2003066663A JP 2001251384 A JP2001251384 A JP 2001251384A JP 2001251384 A JP2001251384 A JP 2001251384A JP 2003066663 A JP2003066663 A JP 2003066663A
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Japan
Prior art keywords
hollow cylindrical
roller
cylindrical portion
helical gear
image forming
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Pending
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JP2001251384A
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Japanese (ja)
Inventor
Hiroyasu Daigo
広安 醍醐
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Ricoh Co Ltd
株式会社リコー
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Application filed by Ricoh Co Ltd, 株式会社リコー filed Critical Ricoh Co Ltd
Priority to JP2001251384A priority Critical patent/JP2003066663A/en
Publication of JP2003066663A publication Critical patent/JP2003066663A/en
Application status is Pending legal-status Critical

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Abstract

PROBLEM TO BE SOLVED: To obtain an improved roller for an image forming device in which a helical gear is easily and highly accurately assembled into a roller main body. SOLUTION: This roller consists of the roller main body and transmission members attached at both ends of the roller main body, and the roller main body is provided with a first hollow cylindrical part, a second hollow cylindrical part whose diameter is larger than that of the first hollow cylindrical part and that is coaxially arranged with the first hollow cylindrical part and a rib connecting hollow cylindrical parts and also extended in the extending direction of the hollow cylindrical part, and the transmission member is provided with a shaft part force-fitted into the first hollow cylindrical part and the helical gear attached to the shaft part. The transmission member is provided with a fitting projected part inserted into a space between the first hollow cylindrical part and the second hollow cylindrical part and also having a fitting groove in which the helical gear is positioned in a rotating direction by the rib.

Description

【発明の詳細な説明】 【0001】 【発明の属する技術分野】この発明は、画像形成装置のローラにかかわり、さらに詳しくは、電子式の複写機やプリンタなどの画像形成装置の現像装置にある現像ローラのように、ハスバ歯車を伝動部材としているローラの改良に関している。 BACKGROUND OF THE INVENTION [0001] [Technical Field of the Invention The invention relates to a roller of the image forming apparatus, and more particularly, in the developing device of an image forming apparatus such as an electronic copying machine or a printer as the developing roller is concerned with improvements in roller has a helical gear and the transmission member. 【0002】 【従来の技術】従来、この種の画像形成装置、たとえば複写機の現像装置における現像ローラは、図5および図6に示すように、ローラ本体1および伝動部材5を備えている。 [0004] Conventionally, the developing roller in the developing device of the image forming apparatus of this type, for example, a copying machine, as shown in FIGS. 5 and 6, includes a roller body 1 and the transmission members 5. 【0003】ローラ本体1は、アルミニウムの押し出し成型物からなるもので、二つの中空円筒部2,3およびリブ4を備えている。 [0003] roller body 1 is made of a aluminum extrusion of, is provided with two hollow cylindrical portions 2, 3 and the ribs 4. 中空円筒部2は中空円筒部3よりも小径で、中空円筒部3と同軸配置されている。 Hollow cylindrical portion 2 is smaller in diameter than the hollow cylindrical portion 3, and is coaxially disposed with the hollow cylindrical portion 3. リブ4 Rib 4
は、三本あり、ローラ本体1の中心軸に関して等間隔配置されている。 Is located three, it is equally spaced with respect to the center axis of the roller body 1. 各々のリブ4は、中空円筒部の延びる方向に沿って延びた板状のもので、長手方向の両側縁を中空円筒部2,3に結合されている。 Each rib 4 is intended plate-shaped extending along the extending direction of the hollow cylindrical portion, and is coupled to longitudinal side edges in the hollow cylindrical portion 2, 3. 【0004】伝動部材5は軸部6とハスバ歯車7とを備えている。 [0004] transmission member 5 is provided with a shaft portion 6 and the helical gear 7. 軸部6は一端を中空円筒部2に圧入されている。 The shaft portion 6 is press-fitted at one end to the hollow cylindrical portion 2. ハスバ歯車7はD形の軸孔8を備え、軸部6におけるローラ本体1から外部に延びる端部は横断面D字形に形成されている。 Helical gear 7 is provided with a shaft hole 8 of the form D, an end portion extending from the roller main body 1 of the shaft portion 6 to the outside is formed on the cross-section D-shaped. ハスバ歯車7は、軸孔8のDカット面9'を軸部6のDカット面9'に一致させて、軸部6に圧入されている。 Helical gear 7 is made to coincide 'the D-cut surface 9 of the shaft portion 6' D-cut surface 9 of the shaft hole 8 is press-fitted to the shaft portion 6. 【0005】 【発明が解決しようとする課題】現像ローラは、これを複写機に組み込んだときに、ハスバ歯車7が静電画像を形成される像担持体のハスバ歯車とかみ合うため、ローラ本体1に対するハスバ歯車7の組み付けは高い寸法精度を要求される。 [0005] The present invention is to provide a developing roller, when incorporating this copier, for mating with helical gear of the image bearing member helical gear 7 is formed an electrostatic image, the roller body 1 assembling the helical gear 7 relative to the requiring high dimensional accuracy. もしローラ本体1の両端にあるの伝動部材5のDカット面9に角度偏差θがあると、ハスバ歯車7の歯と画像担持体のハスバ歯車の歯とのかみ合いがしっかりなされず、最終画像に画像むらなどを生じる。 If the D-cut surface 9 of the transmission member 5 of the ends of the roller body 1 is angular deviation theta, it is not made firm engagement between the teeth of the helical gear teeth and the image bearing member helical gear 7, the final image resulting in an image non-uniformity. 【0006】これを防ぐために、ハスバ歯車7の歯は軸部6にあるDカット面9を基準に創成され、双方の伝動部材5の軸部6はDカット面9の角度偏差θがたとえば角度30′以下になるようにローラ本体1の中空円筒部2に圧入されている。 [0006] To prevent this, the teeth of the helical gear 7 is created based on the D-cut surface 9 on the shaft portion 6, the shaft portion 6 of both of the transmission member 5 is angular deviation θ is, for example, the angle of the D-cut surface 9 30 'is press-fitted into the hollow cylindrical portion 2 of the roller body 1 to be less than. 【0007】しかしながら、このような高い寸法精度でもって伝動部材5の軸部6をローラ本体1に圧入するには、圧入精度を厳重に管理しなければならず、かなりの手間とコストを要する。 However, the press-fitting the shaft portion 6 of the transmission member 5 with at such a high dimensional accuracy in the roller body 1 must strictly manage pressed accuracy, it requires considerable labor and cost. 【0008】本発明の目的は、より簡単に、かつ高い精度でもって、伝動部材をローラ本体に組み付けることができる、改良された画像形成装置のローラを提供することにある。 An object of the present invention, more easily and with high precision, it is possible to assemble the transmission member to the roller body, it is to provide a roller of an improved image forming apparatus. 【0009】 【課題を決するための手段】上記目的を達成するために、本発明の画像形成装置のローラは、ローラ本体とローラ本体の両端に取り付けられた伝動部材とからなり、 [0009] To achieve According to attain the object described above, the roller of the image forming apparatus of the present invention is composed of a transmission member attached to both ends of the roller body and the roller body,
ローラ本体が第一の中空円筒部と、第一の中空円筒部の直径よりも大きな直径をもち、かつ第一の中空円筒部と同軸配置された第二の中空円筒部と、これらの中空円筒部を接続し、かつ中空円筒部の延びる方向に沿って延びるリブとを備え、伝動部材が第一の中空円筒部に圧入される軸部と該軸部に取り付けられたハスバ歯車とを備えているが、第一の中空円筒部と第二の中空円筒部との間の空間に挿入され、かつ前記リブによって回転方向に対するハスバ歯車の位置決めなす嵌合溝を有する嵌合突出部が前記伝動部材に設けられている。 And the roller body is first hollow cylindrical portion, a first having a larger diameter than the diameter of the hollow cylindrical portion, and a second hollow cylindrical part arranged coaxially with the first hollow cylindrical portion, these hollow cylinder part connects, and a rib extending along the direction of extension of the hollow cylindrical portion, and a helical gear attached to the shaft portion and the shaft portion of the transmission member is press-fitted into the first hollow cylindrical portion have, but the first is inserted into the space between the hollow cylindrical portion and a second hollow cylindrical portion, and wherein the transmission member is fit protrusions having positioning eggplant groove of helical gear for the rotational direction by the ribs It is provided to. 【0010】上記目的を達成するために、本発明の画像形成装置のローラは、上述のローラにおいて、ハスバ歯車が軸部と一体に形成されている。 [0010] To achieve the above object, the roller of the image forming apparatus of the present invention, the rollers described above, helical gear is formed integrally with the shaft portion. 【0011】上記目的を達成するために、本発明の画像形成装置のローラは、上述のローラにおいて、嵌合突出部がハスバ歯車と一体に形成されている。 [0011] To achieve the above object, the roller of the image forming apparatus of the present invention, the roller described above, the fitting protruding portion is formed integrally with the helical gear. 【0012】上記目的を達成するために、本発明の画像形成装置のローラは、上述のローラにおいて、嵌合突出部がリングの形態をなしている。 [0012] To achieve the above object, the roller of the image forming apparatus of the present invention, the roller described above, the fitting protrusion in the form of a ring. 【0013】上記目的を達成するために、本発明の画像形成装置のローラは、上述のローラにおいて、嵌合溝がリブに対応する数存在している。 [0013] To achieve the above object, the roller of the image forming apparatus of the present invention, the roller described above, the fitting groove is present several corresponding to the rib. 【0014】 【作用】ローラ本体に対する伝動部材の装着は、伝動部材の軸部をローラ本体の第一の中空円筒部に圧入することによってなされる。 [0014] SUMMARY OF] mounting of the transmission member relative to the roller body is made by press-fitting the shaft portion of the transmission member to the first hollow cylindrical portion of the roller body. このときに、嵌合突出部が中空円筒部の間にはいり込み、同時に嵌合突出部の嵌合溝がリブに嵌まり、伝動部材の回転方向の位置がリブによって確定される。 In this case, the fitting protrusion narrowing enters between the hollow cylindrical portion fits the fitting groove of the fitting protrusion ribs at the same time, the rotational position of the transmission member is defined by the ribs. このため、伝動部材をローラ本体にたんに圧入するだけで、ハスバ歯車をローラ本体に高い精度でもって取り付けることができる。 Therefore, just pressed into sputum the transmission member to the roller body can be mounted with a helical gear with high precision roller body. そして、このローラを画像形成装置に組み込んだときにも、リブがハスバ歯車にかかる負荷を受けるため、高いトルクに耐えられるローラとすることができる。 Then, even when incorporating the roller to the image forming apparatus, since the ribs are subjected to load on the helical gear, it may be a roller which can withstand high torque. 【0015】本発明の画像形成装置のローラにおいて、 [0015] In the roller of the image forming apparatus of the present invention,
ハスバ歯車が軸部と一体に形成されていると、ハスバ歯車と軸部との間のガタがなくなるため、ハスバ歯車がロール本体により高い精度で装着され、より安定した品質の画像を得られるローラをとすることができる。 When helical gear is formed integrally with the shaft portion, since there is no backlash between the helical gear and the shaft portion, the roller which helical gear is mounted with high accuracy by a roll body, obtain a more stable quality image it is possible to make the. そして、ハスバ歯車を軸部に取り付ける手間および取り付けのために加工を必要としなくなり、品質の安定したローラを得られる。 Then, no longer requires processing for labor and attaching mounting the helical gear on the shaft portion, resulting stable roller quality. 【0016】嵌合溝がローラ本体のリブに対応する数あり、各々の嵌合溝が各々のリブに嵌まるようにすると、 The fitting groove has several corresponds to the rib of the roller body, the respective groove is so fit into each of the ribs,
全てのリブによってトルクを受けるため、より高いトルクに耐えられるローラとすることができる。 For receiving the torque by all of the ribs may be a roller that can withstand higher torque. 【0017】 【発明の実施の態様】以下に、本発明の画像形成装置のローラの実施例を、図1〜図4を参照して説明する。 [0017] [OF THE INVENTION Embodiments of the invention] Hereinafter, an embodiment of a roller of the image forming apparatus of the present invention will be described with reference to FIGS. 【0018】このローラは、たとえば電子式複写機の現像装置に組み込まれる現像ローラであって、図1に示すように、ローラ本体11と伝動部材21とを備えている。 [0018] The roller is, for example, a developing roller incorporated in a developing device of an electronic copying machine, as shown in FIG. 1, a roller body 11 and the transmission member 21. 【0019】ローラ本体11は、図2〜図4に示すように、円筒部12,13と三本のリブ14とを備えている。 The roller body 11, as shown in FIGS. 2 to 4, and a cylindrical portion 12, 13 and three ribs 14. 円筒部12,13は両端を開放された中空円筒の形態をなしている。 Cylindrical portions 12, 13 are in the form of a hollow cylinder which is open at both ends. 中空円筒部12は中空円筒部13よりも小径で、中空円筒部13の内部に、中空円筒部13と同軸配置されている。 Hollow cylindrical portion 12 is smaller in diameter than the hollow cylindrical portion 13, the interior of the hollow cylindrical portion 13 are coaxially disposed with the hollow cylindrical portion 13. リブ14はフラットな板状の形態をなしている。 Rib 14 forms a flat plate-like form. リブ14は、中空円筒部12と中空円筒部13との間に、これらの中空円筒部12,13に沿い、かつローラ本体11の中心軸部に関して等角度間隔で配置されている。 Rib 14 is provided between the hollow cylindrical portion 12 and the hollow cylindrical portion 13, along with these hollow cylindrical portions 12 and 13, and are arranged at equal angular intervals about the center axis of the roller body 11. リブ14の長手方向の両側縁は中空円筒部12の外周面と中空円筒部13の内周面とに結合されている。 Longitudinal side edges of the ribs 14 is coupled to the inner peripheral surface of the outer peripheral surface and the hollow cylindrical portion 13 of the hollow cylindrical portion 12. 【0020】このローラ本体11はたとえばアルミニウムの押し出し成型物からなっている。 [0020] consists of the roller body 11, for example extrudates of aluminum. そして、図示されていないが、中空円筒部12の外周面には、画像形成するための機能膜が設けられている。 Then, although not shown, on the outer peripheral surface of the hollow cylindrical portion 12, a functional film for image formation is provided. 機能膜は、たとえば、ローラ本体11を押し出し成形した後、ローラ本体11の両端を基準にして、ローラ本体11の外周面を切削したあと、切削された表面に導電性樹脂をスプレー塗装することによって形成されている。 Functional film, for example, by extruding a roller body 11, based on the two ends of the roller body 11, after cutting the outer peripheral surface of the roller body 11, by spray coating a conductive resin on the cutting surface It is formed. 【0021】伝動部材21は軸部22、ハスバ歯車23 The transmission member 21 is shaft 22, helical gear 23
および嵌合突出部24を備えている。 And a fitting protrusion 24. 軸部22は、ソリッドな円筒の形態をなすもので、外径がローラ本体11 Shaft 22, in which the form of solid cylindrical, outer diameter roller body 11
の中空円筒部12の内径にほぼ等しいか、あるいはこれよりも僅かに大きい。 Approximately equal to the inner diameter of the hollow cylindrical portion 12 of, or which is slightly larger than. ハスバ歯車23は軸部22と一体に形成されている。 Helical gear 23 is formed integrally with the shaft portion 22. 嵌合突出部24はほぼリングの形態をなしている。 Fitting protrusion 24 has a substantially ring form. 嵌合突出部24の内径は、ローラ本体1 The inner diameter of the fitting protrusion 24, the roller body 1
1の中空円筒部12の外径に等しいか、あるいはこれよりも僅かに小さく、外径はローラ本体11の中空円筒部13の内径に等しいか、あるいはこれよりも僅かに大きい。 Equal to the outer diameter of the first hollow cylindrical portion 12, or which slightly smaller than, the outer diameter is equal to the inner diameter of the hollow cylindrical portion 13 of the roller body 11, or it slightly larger than. 嵌合突出部24は軸部22と同軸にハスバ歯車23 Helical fitting protrusion 24 in the shaft portion 22 coaxially with the gear 23
の側面に配置され、かつハスバ歯車23と一体に形成されている。 Disposed in a side surface, and is formed integrally with the helical gear 23. 三つの嵌合溝25が嵌合突出部24の外周面から内周面に向かって設けられている。 Three fitting groove 25 is provided toward the inner peripheral surface from the outer peripheral surface of the fitting projecting portion 24. これらの嵌合溝25は軸部22の中心軸に関して等角度間隔に配置されている。 These fitting grooves 25 are disposed at equal angular intervals about the center axis of the shaft portion 22. 嵌合溝25の幅はローラ本体11のリブ14の厚みと同じか、これよりも僅かに小さい。 Width of the fitting groove 25 is the same as or thickness of the ribs 14 of the roller body 11, which is slightly smaller than the. 伝動部材自体は、焼結合金からなり、軸部22と嵌合突出部24とハスバ歯車23とを一体成形されている。 Transmission member itself is made of sintered alloy, and is molded integrally with the shaft portion 22 and the fitting protrusion 24 and the helical gear 23. 【0022】この伝動部材21は図1に示すように二つあり、各々はローラ本体11の両端にそれぞれ取り付けられている。 [0022] The transmission member 21 is two as shown in FIG. 1, each of which is attached to both ends of the roller body 11. 【0023】取り付けは、軸部22をローラ本体11の中空円筒部13に、嵌合突出部24を中空円筒部12, [0023] installed, the shaft portion 22 into the hollow cylindrical portion 13 of the roller body 11, the hollow cylindrical portion 12 of the fitting protrusion 24,
13の間の空間に、そして、嵌合溝25の各々をリブ1 In the space between the 13 and the ribs 1 of each of the fitting groove 25
4にそれぞれ圧入することによってなされる。 It is done by press-fitting respectively to 4. 圧入されると、伝動部材21はこれらの圧入によってローラ本体11に結合され、ハスバ歯車23はリブ14と嵌合溝2 Once pressed, the transmission member 21 is coupled to the roller body 11 by these press-fitting, helical gear 23 has ribs 14 and the fitting groove 2
5とのはめあいによって回転方向の位置決めをなされる。 It made the positioning of the rotational direction by fitting between 5. 【0024】本発明による現像ローラは、このように、 The developing roller according to the present invention, thus,
リブ14と嵌合溝25とのはめあいによって、ハスバ歯車23の回転方向の位置決めをなされるため、ローラ本体11の両端にあるハスバ歯車23を同じ状態でローラ本体11に組み付けることができる。 By fitting between ribs 14 and the fitting groove 25, because they are made the positioning of the rotational direction of the helical gear 23, it is possible to assemble the helical gear 23 at the ends of the roller body 11 in the roller body 11 in the same state. このため、ローラ本体11に対する伝動部材21の組み付けに精度管理を必要とせず、組み付けを低コストでもって行なえる。 Therefore, without requiring a quality control in assembly of the transmission member 21 relative to the roller body 11, performed with the assembly at low cost. 【0025】複写機への組み込みは、図示していないが、静電画像を形成される像担持体とトナー供給ローラとに接触させて、本発明による現像ローラを複写機本体に配置し、各々のハスバ歯車23を像担持体の両端にあるハスバ歯車にかみ合わせると共に、軸部22の端部2 The incorporation into the copier, not shown, is brought into contact with an image bearing member and the toner supply roller which is formed an electrostatic image, place the developing roller according to the invention to a copying machine main body, respectively with engaging the helical gear 23 to helical gear at the ends of the image bearing member, an end portion 2 of the shaft portion 22
6の各々を複写機本体にある軸受に保持させることによってなされる。 6 each made by holding the bearing in the copying machine main body. 【0026】このときに、現像ローラの両端にあるハスバ歯車23は同じ状態でローラ本体11に組み付けられているため、ハスバ歯車23の歯は像担持体のハスバ歯車の歯と確実にかみ合う。 [0026] At this time, since the helical gear 23 at the ends of the developing roller are assembled to the roller body 11 in the same state, the teeth of the helical gear 23 meshes fully with the teeth of the helical gear of the image bearing member. このため、複写を行なったときに、現像ローラの両端に関連する部位にむらのない最終画像を得られる。 Therefore, when performing a copy, obtained a final image without unevenness at a site associated with the opposite ends of the developing roller. そして、伝動部材21の軸部22とローラ本体11の中空円筒部13との圧入部分のみならず、三本のリブ14によっても駆動トルクを受けるため、高いトルクに耐えられる現像ローラとなり、故障の少ない信頼性の高い複写機を得られる。 Then, not only the press-fitting portion between the hollow cylindrical portion 13 of the shaft portion 22 and the roller body 11 of the transmission member 21, for receiving a driving torque by the three ribs 14 becomes a developing roller which can withstand high torque, the fault obtain a less reliable copiers. 【0027】なお、以上述べた実施例において、ハスバ歯車23は軸部22と一体に形成されているが、D形の軸孔をもつハスバ歯車23を伝動部材21と別に製作し、これを伝動部材21のDカット面に圧入してもよい。 [0027] In the examples described above, helical gear 23 is formed integrally with the shaft portion 22, separately manufactured and the transmission member 21 to helical gear 23 having an axial hole of the D-type, transmission of this it may be pressed into the D-cut surface of the member 21. 伝動部材21およびハスバ歯車は成形や機械加工などでつくられ、必要な精度を確保することができるため、この場合も、精度の高い取り付けを行なえる。 Transmission member 21 and the helical gear is made of such molding or machining, it is possible to ensure the required accuracy, also in this case, allows highly accurate mounting. 【0028】また、嵌合突出部24はハスバ歯車23と一体になっているが、現像ローラの構造に応じて、軸部22と一体に形成されてもよい。 Further, although the fitting protrusion 24 is integrated with the helical gear 23, depending on the structure of the developing roller may be formed integrally with the shaft portion 22. 【0029】 【発明の効果】本発明の画像形成装置のローラは、以上説明したように、伝動部材の軸部をローラ本体の第一の中空円筒部に圧入すると、嵌合突出部の嵌合溝がローラ本体のリブに嵌まり、リブが伝動部材の回転方向の位置を確定する、つまり、ロール本体にある既設のリブを利用して、ローラ本体に対する伝動部材の組み付けをなせるという効果を奏する。 The roller of the image forming apparatus of the present invention according to the present invention, as described above, when press-fitting the shaft portion of the transmission member to the first hollow cylindrical portion of the roller body, the fitting of the fitting projecting portion groove fits into the rib of the roller body, ribs to determine the position in the rotational direction of the transmission member, that is, by utilizing the existing ribs at the roll body, the effect of the nacelle assembly of the transmission member relative to the roller body unlikely to.

【図面の簡単な説明】 【図1】本発明の画像形成装置のローラの一実施例を示す正面図である。 Is a front view showing an embodiment of a roller BRIEF DESCRIPTION OF THE DRAWINGS [Figure 1] Image forming apparatus of the present invention. 【図2】図1のA−A線に沿う縦断面図である。 2 is a longitudinal sectional view taken along the line A-A of FIG. 【図3】図2のB−B線に沿う横断面図である。 3 is a cross-sectional view taken along the line B-B of FIG. 【図4】図1に示すローラにおける伝動部材と一部を破断されたローラ本体との分解斜視図である。 4 is an exploded perspective view of the roller body which is broken transmission member and a part of the roller shown in Figure 1. 【図5】従来の画像形成装置のローラの構成を示す説明図である。 5 is an explanatory diagram showing a structure of a roller of a conventional image forming apparatus. 【図6】図5のC−C線に沿う横断面図である。 6 is a cross-sectional view taken along the line C-C in FIG. 【符号の説明】 11…ローラ本体12…第一の中空円筒部13…第二の中空円筒部14…リブ21…伝動部材22…軸部、 23…ハスバ歯車24…嵌合突出部25…嵌合溝 [Description of Reference Numerals] 11 ... roller body 12 ... first hollow cylindrical portion 13 ... shank second hollow cylindrical portion 14 ... ribs 21 ... transmission member 22, 23 ... helical gear 24 ... fitting protrusion 25 ... fitting groove

Claims (1)

  1. 【特許請求の範囲】 【請求項1】 ローラ本体とローラ本体の両端に取り付けられた伝動部材とからなり、ローラ本体が第一の中空円筒部と、第一の中空円筒部の直径よりも大きな直径をもち、かつ第一の中空円筒部と同軸配置された第二の中空円筒部と、これらの中空円筒部を接続し、かつ中空円筒部の延びる方向に沿って延びるリブとを備え、伝動部材が第一の中空円筒部に圧入される軸部と該軸部に取り付けられたハスバ歯車とを備えている画像形成装置のローラにおいて、第一の中空円筒部と第二の中空円筒部との間の空間に挿入され、かつ前記リブによって回転方向に対するハスバ歯車の位置決めなす嵌合溝を有する嵌合突出部が前記伝動部材に設けられていること、を特徴とする画像形成装置のローラ。 Consists of a Claims 1. A roller body and the roller body transmission member attached at both ends of the large roller body and the first hollow cylindrical portion, than the diameter of the first hollow cylindrical portion It has a diameter, and includes a second hollow cylindrical part arranged coaxially with the first hollow cylindrical portion, and connecting these hollow cylindrical portion, and a rib extending along the direction of extension of the hollow cylindrical portion, transmission in the roller of the image forming apparatus member and a helical gear attached to the shaft portion and the shaft portion to be press-fitted into the first hollow cylindrical portion, a first hollow cylindrical portion and a second hollow cylindrical portion is inserted into the space between, and the roller of the image forming apparatus fitting protrusions having positioning eggplant groove of helical gear for rotating direction, characterized in that, provided on the transmission member by said ribs. 【請求項2】 ハスバ歯車が軸部と一体に形成されている請求項1に記載の画像形成装置のローラ。 2. A helical roller gears image forming apparatus according to claim 1 which is formed integrally with the shaft portion. 【請求項3】 嵌合突出部がハスバ歯車と一体に形成されている請求項2に記載の画像形成装置のローラ。 3. A roller of the image forming apparatus according to claim 2, fitting projecting portion is formed integrally with the helical gear. 【請求項4】 嵌合突出部がリングの形態をなしている請求項3に記載の画像形成装置のローラ。 4. A roller of the image forming apparatus according to claim 3, the fitting protrusion in the form of a ring. 【請求項5】 嵌合溝がリブに対応する数ある請求項4 5. A fitting groove is a number corresponding to the rib claim 4
    に記載の画像形成装置のローラ。 Roller of the image forming apparatus according to.
JP2001251384A 2001-08-22 2001-08-22 Roller for image forming device Pending JP2003066663A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100964685B1 (en) 2003-10-20 2010-06-21 엘지전자 주식회사 Method and apparatus for recording and reproducing data on/from optical disc write once
KR101387124B1 (en) * 2013-02-19 2014-04-21 주식회사 유메코 Composite roller

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100964685B1 (en) 2003-10-20 2010-06-21 엘지전자 주식회사 Method and apparatus for recording and reproducing data on/from optical disc write once
KR101387124B1 (en) * 2013-02-19 2014-04-21 주식회사 유메코 Composite roller

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