JPS60113857A - Power transmitting mechanism by gear - Google Patents

Power transmitting mechanism by gear

Info

Publication number
JPS60113857A
JPS60113857A JP58218636A JP21863683A JPS60113857A JP S60113857 A JPS60113857 A JP S60113857A JP 58218636 A JP58218636 A JP 58218636A JP 21863683 A JP21863683 A JP 21863683A JP S60113857 A JPS60113857 A JP S60113857A
Authority
JP
Japan
Prior art keywords
gear
driven
transmitting mechanism
gears
drive
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
JP58218636A
Other languages
Japanese (ja)
Inventor
Hirobumi Horigome
堀米　博文
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.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP58218636A priority Critical patent/JPS60113857A/en
Publication of JPS60113857A publication Critical patent/JPS60113857A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/0006—Vibration-damping or noise reducing means specially adapted for gearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/02004—Gearboxes; Mounting gearing therein the gears being positioned relative to one another by rolling members or by specially adapted surfaces on the gears, e.g. by a rolling surface with the diameter of the pitch circle

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)

Abstract

PURPOSE:To enable power to be transmitted with accurate trasmissibility by providing a frictional transmitting mechanism in parallel to a gear. CONSTITUTION:A drive side roller 6 and a driven side side roller 7 are coupled respectively integrally with a drive gear 4 and a driven gear 5 so that these rollers 6, 7 engage each other frictionally. Thus, vibration due to back-lash can be prevented and power can be transmitted with accurate transmissibility.

Description

【発明の詳細な説明】 技術分野 本発明は、歯車による動力伝達機構に関する。[Detailed description of the invention] Technical field The present invention relates to a power transmission mechanism using gears.

従来技術 歯車による伝達機構を用いる場合、従動側負荷が変動す
ると、歯車のバックラッシュのため従動側の回転が振動
し、動力伝達がスムーズに行々われないことが多い。こ
れは、複写機の反射鏡や感光体ドラムの１駆動等のよう
に正確外動力伝達を必要とする場合に甚だ不都合である
。このため従来の振動防止機構では一１駆動側または従
動側の歯車をダブルにして、バックラッシュ分だけ歯車
の歯をずらす方法がとられている。その際、バックラッ
シュの量が一定でないので両歯車にスプリングを掛けて
いる。この種の機構はコストが高く複雑であシ、またバ
ツクラツ／ユをおさえている歯車の精度が悪いと引つ掛
シ現象を生ずるおそれがある。When a transmission mechanism using a conventional gear is used, when the load on the driven side fluctuates, the rotation of the driven side vibrates due to backlash of the gear, and power transmission is often not performed smoothly. This is extremely inconvenient when accurate external power transmission is required, such as when driving a reflecting mirror in a copying machine or a photosensitive drum. For this reason, in conventional vibration prevention mechanisms, a method is adopted in which the gears on the drive side or the driven side are doubled and the teeth of the gears are shifted by the amount of backlash. At this time, since the amount of backlash is not constant, springs are applied to both gears. This type of mechanism is expensive and complicated, and if the gears that hold the buckle are not accurate, there is a risk of a jamming phenomenon.

目的 本発明は、バックラッシュによる振動を防止し、正確な
伝動比の動力伝達を可能にする歯車による動力伝達機構
を提供することを目的とする。An object of the present invention is to provide a power transmission mechanism using gears that prevents vibrations due to backlash and enables power transmission with an accurate transmission ratio.

構成 次に、本発明のいくつかの実施例を添付図面に従って説
明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, some embodiments of the present invention will be described with reference to the accompanying drawings.

第１図に於て、機械枠に固定の基板ｌを貫通して延びる
、駆動軸２と従動軸３には、それぞれ歯数ａの１駆動歯
車４と歯数βの従動歯車５が固定結合されている。駆動
軸２ば、モータ等の原動機軸であり、又はこの原動機軸
に駆動結合されている。In FIG. 1, a drive gear 4 with a number of teeth a and a driven gear 5 with a number β of teeth are fixedly coupled to a drive shaft 2 and a driven shaft 3, respectively, which extend through a substrate l fixed to a machine frame. has been done. The drive shaft 2 is a prime mover shaft, such as a motor, or is drivingly coupled to this prime mover shaft.

駆動歯車４には駆動側ローラ６が、従動歯車５には従動
側ローラ７がそれぞれ一体的に結合されておシ、これら
の各ローラ６．７は互いに摩擦係合している。駆動側ロ
ーラ６と従動側ローラ７の直径は次のように決定されて
いる。即ち、駆動側ローラ６の直径をａ１従動側ローラ
７の直径をｂとすると、歯車伝動比Ａ−β／αと摩擦結
合の伝動比Ｂ　＝　ｂ　／　ａとの間にＡ）Ｂが成立つ
ように選択されている。ただし、伝動効率を良くするた
めに−はＡ＝Ｂが望しいので、ＡとＢの差はできるだけ
小さいほうが良い。駆動側ローラ６と従動側ローラ７は
共にゴム等の弾性材でつくってもよいが、一方だけが弾
性材であってもよい。A driving roller 6 is integrally connected to the driving gear 4, and a driven roller 7 is integrally connected to the driven gear 5, and these rollers 6.7 are in frictional engagement with each other. The diameters of the driving roller 6 and the driven roller 7 are determined as follows. That is, if the diameter of the driving roller 6 is a1 and the diameter of the driven roller 7 is b, then A)B holds between the gear transmission ratio A-β/α and the frictional coupling transmission ratio B = b / a. It is selected as follows. However, in order to improve the transmission efficiency, it is desirable that - for A=B, so the difference between A and B should be as small as possible. Both the driving roller 6 and the driven roller 7 may be made of an elastic material such as rubber, but only one of them may be made of an elastic material.

第２図に示す第２の実施例は、摩擦結合をバーニア方式
にしだものである。この実施例では、従動軸３に止め輪
９によって弾性体皿ワツシヤ８が固定され、この皿ワツ
シヤ８に、駆動歯車４に一体的に設けた駆動側ロー２６
が摩擦係合している。The second embodiment shown in FIG. 2 uses a vernier type frictional connection. In this embodiment, an elastic plate washer 8 is fixed to the driven shaft 3 by a retaining ring 9, and a drive side row 26 provided integrally with the drive gear 4 is attached to the disk washer 8.
are in frictional engagement.

この実施例に於ても、第１の実施例の場合と同様、Ａ）
Ｂが成立つ。In this embodiment, as in the case of the first embodiment, A)
B holds true.

第３図に示す第３の実施例は、摩擦結合をベルト方式に
したものである。この場合も、ベルト１２が巻き付けら
れる駆動側プーリ１０と従動側プーリ１１の直径をそれ
ぞれａ、ｌ）　としその比をＢ＝ｂ／ａ　とすると、第
１図及び第２図の実施例と同様、Ａ〉Ｂが成立つように
ａ、ｂ　の値が選定されている。The third embodiment shown in FIG. 3 uses a belt type frictional connection. In this case as well, if the diameters of the driving pulley 10 and the driven pulley 11 around which the belt 12 is wound are a and l), respectively, and the ratio is B=b/a, it is the same as in the embodiment shown in FIGS. 1 and 2. , the values of a and b are selected so that A>B holds.

本発明による摩擦伝達機構は、従動側負荷変動時の加速
変分の力を摩擦力で吸収すればよい。従って、従動系の
全質量をＭ１回転速度をｖ１摩擦機構によシ生じる摩擦
力をＦとした場合、ｔ　− になるように系の摩擦力を選定すればよい。The friction transmission mechanism according to the present invention only needs to absorb the force of the acceleration variation when the driven side load fluctuates using frictional force. Therefore, if the total mass of the driven system is M1, the rotational speed is V1, and the frictional force generated by the friction mechanism is F, then the frictional force of the system should be selected so that it becomes t-.

効果 以上の如く、本発明によれば、歯車伝達と並列に摩擦伝
達を行なうことによシ、高い伝動効率の歯車による動力
伝達機構が得られる。Effects As described above, according to the present invention, by performing frictional transmission in parallel with gear transmission, a gear-based power transmission mechanism with high transmission efficiency can be obtained.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明による歯車伝達機構の第１実施例の断面
図、第２図は第２実施例の断面図、第３旧は第３実施例
の断面図である。 ４・・・駆動歯車　５・・・従動歯車 ６・・・駆動側ローラ　７・・・従動側ローラ８・・・
弾性体皿ワツシヤ　１０・・・駆動側プーリ１１・・・
従動側プーリ１２・・・ベルト第１図 第３図 ムFIG. 1 is a sectional view of a first embodiment of a gear transmission mechanism according to the present invention, FIG. 2 is a sectional view of a second embodiment, and FIG. 3 is a sectional view of a third embodiment. 4... Drive gear 5... Driven gear 6... Drive side roller 7... Driven side roller 8...
Elastic disc washer 10... Drive side pulley 11...
Driven pulley 12...Belt Figure 1 Figure 3

Claims (2)

【特許請求の範囲】[Claims] （１）歯車による動力伝達機構に於て、歯車に並列に摩
擦伝達機構が設けられていることを特徴とする歯車によ
る動力伝達機構。(1) A power transmission mechanism using gears, characterized in that a friction transmission mechanism is provided in parallel with the gears. （２）　歯車による伝動比をＡ１そして摩擦伝達機構に
よる伝動比−ＱＢとするとき、 Ａ）Ｂ が成立することを特徴とする特許請求の範囲第１項に記
載の歯車による動力伝達機構。(2) The power transmission mechanism using gears according to claim 1, wherein A)B holds true when the transmission ratio of the gears is A1 and the transmission ratio of the friction transmission mechanism is -QB.
JP58218636A 1983-11-22 1983-11-22 Power transmitting mechanism by gear Pending JPS60113857A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58218636A JPS60113857A (en) 1983-11-22 1983-11-22 Power transmitting mechanism by gear

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58218636A JPS60113857A (en) 1983-11-22 1983-11-22 Power transmitting mechanism by gear

Publications (1)

Publication Number Publication Date
JPS60113857A true JPS60113857A (en) 1985-06-20

Family

ID=16723049

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58218636A Pending JPS60113857A (en) 1983-11-22 1983-11-22 Power transmitting mechanism by gear

Country Status (1)

Country Link
JP (1) JPS60113857A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0253543A (en) * 1988-08-18 1990-02-22 Daishowa Seiki Co Ltd Transmission gear
WO1994016203A1 (en) * 1992-12-30 1994-07-21 Meta Motoren- Und Energie-Technik Gmbh Device for the variable control of the valves of internal combustion engines, especially for the chokeless load control of four-stroke engines
JPH09168910A (en) * 1996-11-15 1997-06-30 Daishowa Seiki Co Ltd Tool holder
JP2006064170A (en) * 2004-02-03 2006-03-09 Nissan Motor Co Ltd Gear shift device and variable steering angle device for vehicle using the same
EP1900969A2 (en) * 2006-09-14 2008-03-19 JTEKT Corporation Reduction Gear Mechanism and Electric Power Steering Apparatus

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0253543A (en) * 1988-08-18 1990-02-22 Daishowa Seiki Co Ltd Transmission gear
WO1994016203A1 (en) * 1992-12-30 1994-07-21 Meta Motoren- Und Energie-Technik Gmbh Device for the variable control of the valves of internal combustion engines, especially for the chokeless load control of four-stroke engines
EP0677139A1 (en) * 1992-12-30 1995-10-18 Meta Motoren- Und Energie-Technik Gmbh Device for the variable control of the valves of internal combustion engines, especially for the chokeless load control of four-stroke engines
US5586527A (en) * 1992-12-30 1996-12-24 Meta Motoren-Und Energie-Technik Gmbh Device for the variable control of the valves of internal combustion engines, more particularly for the throttle-free load control of 4-stroke engines
JPH09168910A (en) * 1996-11-15 1997-06-30 Daishowa Seiki Co Ltd Tool holder
JP2006064170A (en) * 2004-02-03 2006-03-09 Nissan Motor Co Ltd Gear shift device and variable steering angle device for vehicle using the same
EP1900969A2 (en) * 2006-09-14 2008-03-19 JTEKT Corporation Reduction Gear Mechanism and Electric Power Steering Apparatus
EP1900969A3 (en) * 2006-09-14 2008-09-03 JTEKT Corporation Reduction Gear Mechanism and Electric Power Steering Apparatus

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