JPS5920053B2 - floating ring gear drive - Google Patents
floating ring gear driveInfo
- Publication number
- JPS5920053B2 JPS5920053B2 JP3011981A JP3011981A JPS5920053B2 JP S5920053 B2 JPS5920053 B2 JP S5920053B2 JP 3011981 A JP3011981 A JP 3011981A JP 3011981 A JP3011981 A JP 3011981A JP S5920053 B2 JPS5920053 B2 JP S5920053B2
- Authority
- JP
- Japan
- Prior art keywords
- ring gear
- drive
- gear
- floating ring
- gear 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.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M9/00—Transmissions characterised by use of an endless chain, belt, or the like
- B62M9/04—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio
- B62M9/06—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like
- B62M9/08—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving eccentrically- mounted or elliptically-shaped driving or driven wheel; with expansible driving or driven wheel
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Gear Transmission (AREA)
- Transmission Devices (AREA)
Description
【発明の詳細な説明】
本発明は一方向回転伝動機構を組み込んだ浮動リングギ
の駆動装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a floating ring gear drive device incorporating a one-way rotational transmission mechanism.
本出願人は先に第１図に示すように、駆動軸１に結合し
た駆動歯車２の外歯２ａへ、支持軸がない環状体のリン
グギヤ３の内歯３ａを内接噛合すると共に、リングギヤ
３の外歯３ｂと従動車４とに歯付ベルトあるいはチェー
ン５を掛は渡して伝動する自動張力調節機構を有するベ
ルト伝動装置（特願昭５５−９３２３４号）を提案した
。As shown in FIG. 1, the present applicant has previously internally meshed the internal teeth 3a of a ring gear 3, which is an annular body without a support shaft, with the external teeth 2a of a drive gear 2 coupled to a drive shaft 1, and We have proposed a belt transmission device (Japanese Patent Application No. 55-93234) having an automatic tension adjustment mechanism in which a toothed belt or chain 5 is passed between the external teeth 3b of No. 3 and the driven wheel 4 to transmit power.
そしてこのような装置を、例えば自転車の駆動装置とし
て実用化する場合には、従動車４に一般自転車と同じよ
うに一方向回転伝動機構、例えばラチェット機構を組み
込んだフリーホイールとすることが要求される。When such a device is to be put to practical use, for example, as a bicycle drive device, the driven vehicle 4 is required to be a freewheel incorporating a one-way rotation transmission mechanism, such as a ratchet mechanism, as in general bicycles. Ru.
しかしながら従動車４にラチェット機構等の一方向回転
伝動機構を組み込むと、従動車４の径が太き（なり、し
たがってギヤ比の関係から相対的にリングギヤ３の径も
太き（する必要が生じるため、駆動装置として大型にな
ると（・う欠点があった。However, if a unidirectional rotational transmission mechanism such as a ratchet mechanism is incorporated into the driven wheel 4, the diameter of the driven wheel 4 becomes thick (and therefore, the diameter of the ring gear 3 also becomes relatively thick due to the gear ratio). Therefore, there was a drawback when the drive device became large.
本発明はこのような欠点を解消するためになされたもの
で、浮動リングギヤの駆動装置を自転車の駆動装置とし
て実用化すると共に、従動車４とリングギヤ３を小径と
し、この種駆動装置の小型軽量化を図ることを目的とす
るものである。The present invention has been made in order to eliminate such drawbacks, and in addition to putting a floating ring gear drive device into practical use as a bicycle drive device, the driven wheel 4 and ring gear 3 are made small in diameter, thereby making this type of drive device small and lightweight. The purpose is to promote
以下図面に基づいて本発明の詳細な説明する。The present invention will be described in detail below based on the drawings.
図中１は駆動軸、２は駆動歯車、３はリングギヤ、４は
従動車、５は歯付ベルトである。In the figure, 1 is a drive shaft, 2 is a drive gear, 3 is a ring gear, 4 is a driven wheel, and 5 is a toothed belt.
本発明においては、リングギヤ３の内歯３ａと内接噛合
する駆動歯車２によりリングギヤ３を浮動状態で回転駆
動するようにした装置において、駆動歯車２の内周面に
一方向回転伝動機構としてラチェット６を形成すると共
に、クランクγと一体的な駆動軸１には前記ラチェット
６と一方向の回転のみに内接噛合する爪８を設けた中子
９を固定し、ベアリング１０を介して駆動歯車２と駆動
軸１とを回転自由に結合する。In the present invention, in a device in which the ring gear 3 is rotationally driven in a floating state by the drive gear 2 that internally meshes with the internal teeth 3a of the ring gear 3, a ratchet is attached to the inner peripheral surface of the drive gear 2 as a one-way rotation transmission mechanism. 6, and a core 9 provided with a pawl 8 that internally engages with the ratchet 6 only in one direction of rotation is fixed to the drive shaft 1 integral with the crank γ, and a drive gear is connected via a bearing 10. 2 and the drive shaft 1 are rotatably coupled.
なお１１は爪８を噛合方向に付勢する爪ばね、１２はペ
ダルである。Note that 11 is a pawl spring that urges the pawl 8 in the engaging direction, and 12 is a pedal.
また、リングギヤ３の外歯３ｂと従動車４との間に歯付
ベルトあるいはチェーン５を掛は渡すことは前記した通
りである。Further, as described above, the toothed belt or chain 5 is hooked between the external teeth 3b of the ring gear 3 and the driven wheel 4.
上記実施例では一方向回転伝動機構としてラチェット機
構を示したが、他のどのような一方向回転伝動機構（一
方向クラッチ）でも差し支えない。In the above embodiment, a ratchet mechanism is shown as the one-way rotation transmission mechanism, but any other one-way rotation transmission mechanism (one-way clutch) may be used.
次に本発明の作用効果を説明する。Next, the effects of the present invention will be explained.
上述のように本発明においては、浮動リングギヤの駆動
装置において、駆動歯車２と駆動軸１との間に一方向回
転伝動機構を組み込む構成としたので、クランクγの回
転と駆動歯車２とは一方向の回転伝動装置となり、例え
ば自転車の場合、自転車が走っている間はクランク１お
よびペダル１２０回転を休めたり逆回転も可能であり、
また前進方向の回転時にのみ駆動歯車２へ回転を伝える
ので、自転車の駆動装置として実用化することができる
と共に、従動車４にラチェット機構等を組み込まないの
で従動車４（お」ｈ径となり、ギヤ比の関係から相対的
にリングギヤ３の径も小径となる。As described above, in the present invention, in the floating ring gear drive device, a one-way rotation transmission mechanism is incorporated between the drive gear 2 and the drive shaft 1, so the rotation of the crank γ and the drive gear 2 are For example, in the case of a bicycle, it is possible to rest the crank 1 and pedal 120 rotations while the bicycle is running, and it is also possible to rotate the pedals in the opposite direction.
In addition, since rotation is transmitted to the drive gear 2 only when rotating in the forward direction, it can be put to practical use as a bicycle drive device, and since a ratchet mechanism etc. is not incorporated in the driven wheel 4, the driven wheel 4 has a diameter of The diameter of the ring gear 3 is also relatively small due to the gear ratio.
したがって本発明によれば、装置全体が小型軽量になっ
て、材料も少なくてすむばかりか、外観的にもコンパク
トとなり、搭乗者の安全性にも寄与するという効果が得
られる。Therefore, according to the present invention, the entire device becomes smaller and lighter, requires less material, and has a more compact appearance, contributing to passenger safety.
第１図は本発明装置の一部切欠正面図、第２図はその要
部の拡大断面図である。
１・・・・・・駆動軸、２・・・・・・駆動歯車、３・
・・・・・浮動リングギヤ、４・・・・・・従動車、５
・・・・・・歯付ベルト（チェーン）、６・・・・・・
ラチェット、７・・・・・・クランク、８・・・・・・
爪、９・・・・・・中子。FIG. 1 is a partially cutaway front view of the device of the present invention, and FIG. 2 is an enlarged sectional view of the main part thereof. 1... Drive shaft, 2... Drive gear, 3.
... Floating ring gear, 4 ... Driven vehicle, 5
...Toothed belt (chain), 6...
Ratchet, 7...Crank, 8...
Nail, 9... Core.
Claims (1)
ングギヤを浮動状態で回転駆動すると共に、リングギヤ
と従動車の外周に伝動帯を掛は渡した装置において、前
記駆動歯車と、その駆動軸との間に一方向回転伝動機構
を設けたことを特徴とする浮動リングギヤの駆動装置。1 In a device in which the ring gear is rotationally driven in a floating state by a drive gear that internally meshes with the internal teeth of the ring gear, and a transmission band is passed around the outer periphery of the ring gear and the driven wheel, the drive gear and its drive shaft are connected to each other. A floating ring gear drive device characterized by having a one-way rotation transmission mechanism provided therebetween.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3011981A JPS5920053B2 (en) | 1981-03-03 | 1981-03-03 | floating ring gear drive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3011981A JPS5920053B2 (en) | 1981-03-03 | 1981-03-03 | floating ring gear drive |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57144332A JPS57144332A (en) | 1982-09-06 |
| JPS5920053B2 true JPS5920053B2 (en) | 1984-05-10 |
Family
ID=12294888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3011981A Expired JPS5920053B2 (en) | 1981-03-03 | 1981-03-03 | floating ring gear drive |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5920053B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01250668A (en) * | 1988-03-31 | 1989-10-05 | Toshiba Corp | Gear |
| WO2004069631A1 (en) * | 2003-02-03 | 2004-08-19 | Koyo Seiko Co., Ltd. | Electric power-steering device |
-
1981
- 1981-03-03 JP JP3011981A patent/JPS5920053B2/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01250668A (en) * | 1988-03-31 | 1989-10-05 | Toshiba Corp | Gear |
| WO2004069631A1 (en) * | 2003-02-03 | 2004-08-19 | Koyo Seiko Co., Ltd. | Electric power-steering device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57144332A (en) | 1982-09-06 |
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