JPH0579543A - Gear mechanism for preventing excessive torque transmission - Google Patents
Gear mechanism for preventing excessive torque transmissionInfo
- Publication number
- JPH0579543A JPH0579543A JP3243528A JP24352891A JPH0579543A JP H0579543 A JPH0579543 A JP H0579543A JP 3243528 A JP3243528 A JP 3243528A JP 24352891 A JP24352891 A JP 24352891A JP H0579543 A JPH0579543 A JP H0579543A
- Authority
- JP
- Japan
- Prior art keywords
- gear
- excessive torque
- torque transmission
- gear mechanism
- shaft
- 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.)
- Granted
Links
Landscapes
- Transmission Devices (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、駆動軸と従動軸との間
に過大トルクが伝達されることを防止する過大トルク伝
達防止用ギア機構に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gear mechanism for preventing excessive torque transmission that prevents excessive torque from being transmitted between a drive shaft and a driven shaft.
【０００２】[0002]
【従来の技術】従来、例えば、図３に示すピストンクラ
ンク装置２において、モータ４の駆動軸６に設けられた
第１のギア８を、偏心軸１０を有した回転軸１１に設け
られた第２のギア１２に噛合し、前記モータ４の回転力
を前記偏心軸１０のリング体１４に当接するピストン１
６に伝達している。この場合、第２ギア１２の回動範囲
を規制するために、ストッパ１８が備えられている。2. Description of the Related Art Conventionally, for example, in a piston crank device 2 shown in FIG. 3, a first gear 8 provided on a drive shaft 6 of a motor 4 is provided on a rotary shaft 11 having an eccentric shaft 10. Piston 1 that meshes with the gear 12 of No. 2 and makes the rotational force of the motor 4 contact the ring body 14 of the eccentric shaft 10.
It is transmitted to 6. In this case, a stopper 18 is provided in order to regulate the rotation range of the second gear 12.
【０００３】[0003]
【発明が解決しようとする課題】このように構成されて
いるピストンクランク装置２では、図３に示すように、
モータ４、あるいはピストン１６から過大なトルクが作
用した場合、第２ギア１２がストッパ１８に衝突する、
あるいは第１、第２のギア８、１２が破損するおそれが
あった。そこで、例えば、対策としてストッパ１８と第
２ギア１２の間にゴムやスプリング等のダンパを設置す
る方法も考えられるが、スペースが必要となり小型化の
観点からは問題となっていた。In the piston crank device 2 thus constructed, as shown in FIG.
When excessive torque acts from the motor 4 or the piston 16, the second gear 12 collides with the stopper 18,
Alternatively, the first and second gears 8 and 12 may be damaged. Therefore, for example, a method of installing a damper such as rubber or a spring between the stopper 18 and the second gear 12 can be considered as a countermeasure, but this requires a space and has been a problem from the viewpoint of downsizing.
【０００４】本発明は、この種の問題を解決するために
なされたものであって、駆動軸と従動軸との間で過大ト
ルクが伝達することを防止できる小型で、且つ、簡易な
過大トルク伝達防止用ギア機構を提供することを目的と
する。The present invention has been made in order to solve this kind of problem, and is a small and simple excessive torque which can prevent the excessive torque from being transmitted between the drive shaft and the driven shaft. An object is to provide a transmission preventing gear mechanism.
【０００５】[0005]
【課題を解決するための手段】前記の目的を達成するた
めに、本発明は、駆動軸に係合する第１のギアと、前記
第１のギアに係合する第２のギアと、従動軸に係合し、
前記第２のギアに摺接する摺接部材と、前記第２のギア
を前記摺接部材に押圧する押圧手段と、を備えることを
特徴とする。In order to achieve the above object, the present invention provides a first gear engaged with a drive shaft, a second gear engaged with the first gear, and a driven gear. Engage the shaft,
It is characterized in that it is provided with a sliding contact member which is in sliding contact with the second gear, and a pressing means which presses the second gear against the sliding contact member.
【０００６】[0006]
【作用】駆動軸の回転力は、第１のギアを介して第２の
ギアに伝達され、次いで、押圧手段によって前記第２の
ギアが押圧された摺接部材を介して従動軸に伝達され
る。この際、駆動軸あるいは従動軸において過大トルク
が発生した場合に、摺接部材と第２のギアとの間で滑り
が生じ、これによって過大トルクが吸収される。The rotating force of the drive shaft is transmitted to the second gear via the first gear, and then to the driven shaft via the sliding contact member against which the second gear is pressed by the pressing means. It At this time, when excessive torque is generated in the drive shaft or the driven shaft, slippage occurs between the sliding contact member and the second gear, and the excessive torque is absorbed thereby.
【０００７】[0007]
【実施例】本発明に係る過大トルク伝達防止用ギア機構
について、好適な実施例を挙げ、添付の図面を参照しな
がら以下詳細に説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A gear mechanism for preventing excessive torque transmission according to the present invention will be described in detail below with reference to the accompanying drawings with reference to preferred embodiments.
【０００８】ここでは、過大トルク伝達防止用ギア機構
を使用したアンチロックブレーキ用モジュレータ２０を
図１、図２を参照して説明する。なお、図３と略同一の
構成要素には、同一の参照符号を付し、その詳細な説明
を省略する。An antilock brake modulator 20 using a gear mechanism for preventing excessive torque transmission will be described with reference to FIGS. 1 and 2. It should be noted that the same components as those in FIG. 3 are designated by the same reference numerals, and detailed description thereof will be omitted.
【０００９】モジュレータ２０は、基本的に、モータ
４、過大トルク伝達防止用ギア機構２２、偏心軸１０、
ピストン２４から構成される。The modulator 20 basically comprises a motor 4, an excessive torque transmission preventing gear mechanism 22, an eccentric shaft 10,
It is composed of a piston 24.
【００１０】過大トルク伝達防止用ギア機構２２は、図
２に示すように、駆動軸６の第１のギア８に噛合する第
２のギア２６、回転軸１１にスプライン嵌合している摩
擦板２８、第２ギア２６の側面部を摩擦板２８の側面部
に押圧する皿ばね３０から構成されている。摩擦板２８
の第２ギア２６に摺接する側面部には所定の摩擦力を発
生させるリング状の当接部３２が備えられている。ま
た、皿ばね３０の抜け防止用としての係止部材３３が摩
擦板２８の溝３４に装着されるとともに、皿ばね３０の
押圧力を調節するために、スペーサ３５が係止部材３３
と皿ばね３０の間に挟まれている。As shown in FIG. 2, the excessive torque transmission preventing gear mechanism 22 includes a second gear 26 meshing with the first gear 8 of the drive shaft 6 and a friction plate spline-fitted to the rotary shaft 11. 28, a disc spring 30 for pressing the side surface of the second gear 26 against the side surface of the friction plate 28. Friction plate 28
A ring-shaped contact portion 32 that generates a predetermined frictional force is provided on the side surface portion that is in sliding contact with the second gear 26. Further, a locking member 33 for preventing the disc spring 30 from coming off is attached to the groove 34 of the friction plate 28, and a spacer 35 is provided for adjusting the pressing force of the disc spring 30.
And the disc spring 30.
【００１１】一方、モジュレータ２０は、例えば、自動
二輪車のブレーキレバー操作によって駆動されるマスタ
シリンダと、車輪のディスクブレーキに装着されたキャ
リパシリンダとの間のブレーキオイル経路中に設けら
れ、前記ブレーキオイルの油圧制御を行う。On the other hand, the modulator 20 is provided, for example, in a brake oil path between a master cylinder driven by a brake lever operation of a motorcycle and a caliper cylinder mounted on a disc brake of the wheel, and the brake oil is provided. Hydraulic control.
【００１２】回転軸１１には、偏心軸１０が装着されて
いる。前記偏心軸１０に装着されたリング体１４は、ピ
ストン２４に当接されている。ピストン２４は、バルブ
３６の開閉動作を行い、ブレーキ油圧の連通、遮断およ
び油圧制御を行う。An eccentric shaft 10 is mounted on the rotary shaft 11. The ring body 14 mounted on the eccentric shaft 10 is in contact with the piston 24. The piston 24 opens and closes the valve 36, connects and disconnects the brake hydraulic pressure, and controls the hydraulic pressure.
【００１３】なお、図２に示すように、偏心軸１０の回
動範囲は、ストッパ３８、４０によって規制される。ま
た、バルブ３６を通常時に開成状態とすべく、コイルス
プリング４２が偏心軸１０のリング体１４を付勢してい
る。As shown in FIG. 2, the rotation range of the eccentric shaft 10 is restricted by the stoppers 38 and 40. Further, the coil spring 42 urges the ring body 14 of the eccentric shaft 10 so that the valve 36 is normally opened.
【００１４】このように構成されるアンチロックブレー
キ用モジュレータ２０は、以下のように動作する。The antilock brake modulator 20 thus constructed operates as follows.
【００１５】開成しているバルブ３６を閉成する場合、
先ず、モータ４を駆動する。駆動軸６の回転力は、第１
ギア８から第２ギア２６に伝達される。第２ギア２６の
側面部が摩擦板２８の当接部３２に皿ばね３０によって
押圧されているため、第２ギア２６の回転力は摩擦板２
８を介してスプライン嵌合している回転軸１１に伝達さ
れる。回転軸１１の回動は、偏心軸１０、リング体１４
の回動となり、これに伴ってピストン２４が変位してバ
ルブ３６を閉成させる。When the open valve 36 is closed,
First, the motor 4 is driven. The rotational force of the drive shaft 6 is the first
It is transmitted from the gear 8 to the second gear 26. Since the side surface portion of the second gear 26 is pressed against the contact portion 32 of the friction plate 28 by the disc spring 30, the rotational force of the second gear 26 is reduced by the friction plate 2.
It is transmitted via 8 to the rotary shaft 11 that is spline-fitted. The rotation of the rotary shaft 11 is performed by the eccentric shaft 10 and the ring body 14.
And the piston 24 is displaced accordingly to close the valve 36.
【００１６】以上のようにして、アンチロックブレーキ
用モジュレータ２０は動作する。ここで、何らかの原因
により、モータ４の過大なトルクが駆動軸６を付勢した
場合、第２ギア２６が前記過大トルクに応じて回動す
る。しかしながら、第２ギア２６と摩擦板２８とは、当
接部３２を介して摺接状態にあるため、皿ばね３０の押
圧力による摩擦力以上のトルクが付与された場合には、
第２ギア２６と摩擦板２８との間で滑りが発生し、過大
トルクの伝達が阻止される。したがって、ギア８、２
６、摩擦板２８の破損、あるいはリング体１４のストッ
パ３８、４０に対する衝突を防止することができる。ま
た、逆にブレーキ油圧等により過大トルクがピストン２
４から回転軸１１に対して働いても、同様にして第２ギ
ア２６と摩擦板２８との間で滑りが発生するため、過大
トルクが伝達されることはない。The antilock brake modulator 20 operates as described above. Here, when the excessive torque of the motor 4 biases the drive shaft 6 for some reason, the second gear 26 rotates in accordance with the excessive torque. However, since the second gear 26 and the friction plate 28 are in slidable contact with each other via the contact portion 32, when a torque equal to or greater than the friction force due to the pressing force of the disc spring 30 is applied,
Slip occurs between the second gear 26 and the friction plate 28, and transmission of excessive torque is blocked. Therefore, the gears 8, 2
6. It is possible to prevent the friction plate 28 from being damaged or the ring body 14 from colliding with the stoppers 38 and 40. On the contrary, excessive torque due to brake hydraulic pressure etc.
Even if it acts on the rotary shaft 11 from No. 4, the excessive torque is not transmitted because slippage similarly occurs between the second gear 26 and the friction plate 28.
【００１７】また、本実施例においては、過大トルクの
伝達を回転軸１１にスプライン嵌合し第２ギア２６に摺
接する摩擦板２８を介して阻止しているため、過大トル
ク伝達防止用ギア機構２２をコンパクトに収納すること
ができ、スペースを節約できる。Further, in this embodiment, the transmission of the excessive torque is blocked by the friction plate 28 which is spline-fitted to the rotary shaft 11 and is in sliding contact with the second gear 26. Therefore, the excessive torque transmission preventing gear mechanism is prevented. 22 can be stored compactly and space can be saved.
【００１８】この過大トルク伝達防止用ギア機構２２
は、本実施例に限らず、他の装置にも利用可能である。This excessive torque transmission preventing gear mechanism 22
Is not limited to this embodiment, and can be used for other devices.
【００１９】[0019]
【発明の効果】本発明に係る過大トルク伝達防止用ギア
機構によれば、以下の効果が得られる。According to the gear mechanism for preventing excessive torque transmission according to the present invention, the following effects can be obtained.
【００２０】すなわち、第１のギアと第２のギアとを押
圧手段によって押圧される摺接部材を介して連結してい
るため、駆動軸あるいは従動軸で発生した過大トルクが
一方から他方に伝達することを防止でき、これによっ
て、ギア等が破損することを確実に阻止できる。しか
も、摺接部材は第２ギアに対して同軸に構成することが
容易であり、これによって、小型化も達成することがで
きる。That is, since the first gear and the second gear are connected via the sliding contact member pressed by the pressing means, the excessive torque generated on the drive shaft or the driven shaft is transmitted from one to the other. It can be prevented that the gears and the like are prevented from being damaged. Moreover, it is easy to configure the sliding contact member coaxially with the second gear, and it is possible to achieve miniaturization.
【図１】本発明に係る過大トルク伝達防止用ギア機構を
使用したアンチロックブレーキ用モジュレータの縦断面
図である。FIG. 1 is a vertical cross-sectional view of an antilock brake modulator using an excessive torque transmission preventing gear mechanism according to the present invention.
【図２】本発明に係る過大トルク伝達防止用ギア機構を
使用したアンチロックブレーキ用モジュレータの要部斜
視説明図である。FIG. 2 is a perspective view of a main part of an antilock brake modulator using the excessive torque transmission preventing gear mechanism according to the present invention.
【図３】従来例に係るピストンクランク装置の要部斜視
説明図である。FIG. 3 is a perspective view of a main part of a piston crank device according to a conventional example.
４…モータ ６…駆動軸 ８、１２、２６…ギア １０…偏心軸 １１…回転軸 ２４…ピストン ２８…摩擦板 ３０…皿ばね 4 ... Motor 6 ... Drive shaft 8, 12, 26 ... Gear 10 ... Eccentric shaft 11 ... Rotation shaft 24 ... Piston 28 ... Friction plate 30 ... Disc spring
───────────────────────────────────────────────────── フロントページの続き (72)発明者 大田 淳朗 埼玉県和光市中央１丁目４番１号 株式会 社本田技術研究所内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Atsuro Ota 1-4-1 Chuo, Wako City, Saitama Prefecture Honda R & D Co., Ltd.
Claims (1)
と、 前記第２のギアを前記摺接部材に押圧する押圧手段と、 を備えることを特徴とする過大トルク伝達防止用ギア機
構。1. A first gear engaged with a drive shaft, a second gear engaged with the first gear, and a sliding contact member engaged with a driven shaft and slidably contacting the second gear. And a pressing unit that presses the second gear against the sliding contact member, and a gear mechanism for preventing excessive torque transmission.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24352891A JP3329392B2 (en) | 1991-09-24 | 1991-09-24 | Anti-lock brake modulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24352891A JP3329392B2 (en) | 1991-09-24 | 1991-09-24 | Anti-lock brake modulator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0579543A true JPH0579543A (en) | 1993-03-30 |
| JP3329392B2 JP3329392B2 (en) | 2002-09-30 |
Family
ID=17105247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24352891A Expired - Lifetime JP3329392B2 (en) | 1991-09-24 | 1991-09-24 | Anti-lock brake modulator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3329392B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6428119B2 (en) | 2000-03-29 | 2002-08-06 | Honda Giken Kogyo Kabushiki Kaisha | Control device for antilock brake device |
| US6478386B2 (en) | 2000-03-29 | 2002-11-12 | Honda Giken Kogyo Kabushiki Kaisha | Control device for antilock brake device |
| JP2006349040A (en) * | 2005-06-15 | 2006-12-28 | Seiko Epson Corp | Driving force transmission device, pressurizing pump device, and liquid injection device |
-
1991
- 1991-09-24 JP JP24352891A patent/JP3329392B2/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6428119B2 (en) | 2000-03-29 | 2002-08-06 | Honda Giken Kogyo Kabushiki Kaisha | Control device for antilock brake device |
| US6478386B2 (en) | 2000-03-29 | 2002-11-12 | Honda Giken Kogyo Kabushiki Kaisha | Control device for antilock brake device |
| DE10113237B4 (en) * | 2000-03-29 | 2004-01-29 | Honda Giken Kogyo K.K. | Anti-lock hydraulic vehicle brake system |
| DE10113236B4 (en) * | 2000-03-29 | 2004-01-29 | Honda Giken Kogyo K.K. | Anti-lock, hydraulic vehicle brake system |
| JP2006349040A (en) * | 2005-06-15 | 2006-12-28 | Seiko Epson Corp | Driving force transmission device, pressurizing pump device, and liquid injection device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3329392B2 (en) | 2002-09-30 |
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