JPS5943258A - Gear mechanism - Google Patents
Gear mechanismInfo
- Publication number
- JPS5943258A JPS5943258A JP15261482A JP15261482A JPS5943258A JP S5943258 A JPS5943258 A JP S5943258A JP 15261482 A JP15261482 A JP 15261482A JP 15261482 A JP15261482 A JP 15261482A JP S5943258 A JPS5943258 A JP S5943258A
- Authority
- JP
- Japan
- Prior art keywords
- gear
- side gear
- backlash
- pinion
- engine side
- 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
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
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/22—Toothed members; Worms for transmissions with crossing shafts, especially worms, worm-gears
- F16H55/24—Special devices for taking up backlash
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P7/00—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices
- F02P7/10—Drives of distributors or of circuit-makers or -breakers
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Gears, Cams (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
Abstract
Description
【発明の詳細な説明】
本発明はギヤー機構に係り、特に、内燃機関点火用配電
器の駆動ギヤ一部に用いるに最適なギヤー機構に関する
。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a gear mechanism, and more particularly to a gear mechanism suitable for use as a part of a drive gear of an internal combustion engine ignition power distribution device.
内燃機関で点火時期の検出を行なうには、通常クランク
シャフトの回転をカムシャフト、ギヤー等を介してディ
ストリビュータに回転全伝達することにより行なってい
る。Ignition timing is normally detected in an internal combustion engine by transmitting the entire rotation of a crankshaft to a distributor via a camshaft, gears, etc.
しかし、従来においては、内燃機関り回転変動とギヤー
のバックラッシュにより、ディストリビュータ回転体の
慣性からクランクシャフトに厳密には追従しない。これ
を解決するものとして、配電器のビニオンに電圧全与え
てシャフトに対し移動可能式(例えば、実公昭5l−4
4810)とビニオンにスラスト荷重をつける回転抵抗
式(例えば、実公昭46−7694)とが提案されてい
る。しかし、いずれもエンジン側ギヤーの再速度が増加
時は、配電器側ギヤーと追従するが、減速時は、配電器
側ギヤーが慣性運転し、エンジン側ギヤーに追従しない
ため過速角現象となる欠点があった。However, in the past, due to rotational fluctuations in the internal combustion engine and backlash of the gears, the inertia of the distributor rotating body does not allow it to closely follow the crankshaft. To solve this problem, we applied a full voltage to the distributor's binion and made it movable with respect to the shaft (for example, the
4810) and a rotational resistance type in which a thrust load is applied to the pinion (for example, Japanese Utility Model Publication No. 46-7694) have been proposed. However, in both cases, when the speed of the engine side gear increases, it follows the distributor side gear, but when decelerating, the distributor side gear operates inertia and does not follow the engine side gear, resulting in an overspeed angle phenomenon. There were drawbacks.
近年、燃費向上のために圧縮比を上げる傾向があり、回
転変動は更に増す傾向にある。従って、過進角対策は重
要な課題となっている。In recent years, there has been a trend to increase compression ratios to improve fuel efficiency, and rotational fluctuations have also tended to increase. Therefore, countermeasures against overadvanced angle have become an important issue.
本発明の目的は、ギヤーにおけるバックラッシュを無く
シ、被、駆動側ギヤーを駆動側ギヤーの加減速に追従す
るようにしたギヤー機構全提供するにある。SUMMARY OF THE INVENTION An object of the present invention is to provide an entire gear mechanism that eliminates backlash in gears and allows a driven gear to follow acceleration and deceleration of the driven gear.
即ち、本発明は、被駆動+11!Iギヤーを固定部と可
動部に分割し、エンジン側ギヤーとの間のバックラッシ
ュをゼロに抑え、エンジン側ギヤーに加減速いずれでも
追従するようにし、−F述の欠点を排除したものである
。That is, in the present invention, driven +11! The I gear is divided into a fixed part and a movable part, the backlash with the engine side gear is suppressed to zero, and it follows the engine side gear in both acceleration and deceleration, eliminating the drawbacks mentioned in -F. .
第1図は本発明の実施例を示す断面図である。FIG. 1 is a sectional view showing an embodiment of the present invention.
第1図において、ギヤー機構は、配電器のハウジング1
と、該ハウジングの軸部に配設されるボールベアリング
2と、ハウジング1のil1部の所定部位に配設される
含油メタル3と、該含油メタル3およびボールベアリン
グ2によってハウジング内に軸支されるシャフト4と、
該シャフトに固定される配電器側の第1ビニオン5と、
該ビニオンに隣接して配設される第2のビニオンl:、
第1のビニオン5を、1ス動するエンジン用用ギヤー7
と、第1のビニオン5をシャフト4に固定するノックビ
ン8と、シャフト4に圧入されるガイドビン9と第2の
ビニオン6にガイドビン9に遊合するように設けられる
溝10と、第1のビニオン5と第2のビニオン6との間
に設けられるスプリング11とより構成される。In FIG. 1, the gear mechanism is connected to the housing 1 of the power distributor.
, a ball bearing 2 disposed on the shaft portion of the housing, an oil-impregnated metal 3 disposed at a predetermined portion of the il1 portion of the housing 1, and a ball bearing 2 that is pivotally supported within the housing by the oil-impregnated metal 3 and the ball bearing 2. a shaft 4,
a first pinion 5 on the power distribution device side fixed to the shaft;
A second binion l disposed adjacent to the binion:
Engine gear 7 that moves the first pinion 5 by one step
a knock pin 8 for fixing the first pinion 5 to the shaft 4; a guide pin 9 press-fitted into the shaft 4; a groove 10 provided in the second pinion 6 so as to fit loosely with the guide pin 9; and a spring 11 provided between the second pinion 5 and the second pinion 6.
以上の構成における作動を第2図の説明図に基づいて説
明する。スプリング7により、第2ビニオン6はエンジ
ン側ギヤー7と噛み合う前においては、ガイドビン9に
沿って第1図に図示のP方向に移動している。そして噛
み合いの際、第2ビニオン6はP方向と反対に移動する
。このため、セット完了後は第2図に示す如く、エンジ
ン側ギヤー7に対しFおよびRなる面圧が作用し、バッ
クラッシュgi+gzが図示のように発生する。The operation of the above configuration will be explained based on the explanatory diagram of FIG. 2. Due to the spring 7, the second pinion 6 is moved along the guide pin 9 in the P direction shown in FIG. 1 before it engages with the engine side gear 7. When engaged, the second pinion 6 moves in the opposite direction to the P direction. Therefore, after the setting is completed, surface pressures F and R act on the engine side gear 7, as shown in FIG. 2, and backlash gi+gz occurs as shown in the figure.
したがって、エンジン側ギヤー7は自由に振動できず、
配電器側ギヤーと一体となって噛み合うことが可能とな
り、両者間にはバックラッシュが生じなくなる。これに
より、バックラッシュにょって生じでいた点火時期の過
進角現象全抑制することができる。Therefore, the engine side gear 7 cannot vibrate freely,
It becomes possible to mesh integrally with the gear on the power distribution device side, and no backlash occurs between the two. This makes it possible to completely suppress the over-advanced ignition timing phenomenon that occurs due to backlash.
尚、第2図に示す構成の場合は、エンジン側ギヤークに
よる第1ビニオン5に作用する推力は、P方向になる方
が望ましい。その理由は、スプリング11の荷重は単に
エンジン側ギヤーに追従するのみの荷重ですみ、キャー
の摩耗に有利のためである。In the case of the configuration shown in FIG. 2, it is preferable that the thrust force acting on the first pinion 5 by the engine side gear is in the P direction. The reason for this is that the load on the spring 11 merely follows the engine gear, which is advantageous for wear of the carrier.
次に、他の実施例を第3図について説明する。Next, another embodiment will be described with reference to FIG.
第3図はワッシャ12およびクリップ13によってスプ
リング11を外部に装着した場合を示し、その効果は第
2図の場合と同一である。尚、この場合には、エンジン
側ギヤー7より受ける第1ビニオン5の軸方向の推力を
Q方向になるようにした方が、スプリング11の荷重が
少なくてすむので安定する。FIG. 3 shows a case in which the spring 11 is mounted externally by a washer 12 and a clip 13, and the effect is the same as in the case of FIG. 2. In this case, it is more stable if the axial thrust of the first pinion 5 received from the engine side gear 7 is in the Q direction, since the load on the spring 11 can be reduced.
尚、スプリング11のような弾性体の代わりに油圧を用
いて第2ビニオンを移動するようにしても同等の効果を
得ることができる。Note that the same effect can be obtained even if the second pinion is moved using hydraulic pressure instead of an elastic body such as the spring 11.
以上より明らかなように本発明によれば、駆動側ギヤー
と被、駆動側ギヤーとをバックラッシュ無しに結合する
ことができ、特に、ディストリビュータに用いた場合に
は過進角現象を抑制することができる。As is clear from the above, according to the present invention, the driving gear and the driven gear can be coupled without backlash, and in particular, when used in a distributor, overadvance phenomenon can be suppressed. I can do it.
第1図は本発明の実施例を示す断面図、第2図は本発明
の詳細な説明するための説明図、第3図は本発明のf[
セの実施例を示す要部正面図である。
1・・・ハウジング、2・・・ボールベアリング、3・
・・含油メタル、4・・・シャフト、5・・・第1ピニ
オン、6・・・第2ピニオン、7・・・エンジン側ギヤ
ー、8・・・ノックピン、9・・・ガイドビン、10・
・・溝、11・・・スプリング、12・・・ワッシャ、
13・・・クリップ。
代理人 弁理士 高橋[uj’:夫−
1□′モ]′ ・
S”’Jd、)(−,1,、−
27\
秒 Jjf7J
□OFIG. 1 is a sectional view showing an embodiment of the present invention, FIG. 2 is an explanatory diagram for explaining the present invention in detail, and FIG. 3 is a cross-sectional view showing an embodiment of the present invention.
FIG. 1...Housing, 2...Ball bearing, 3.
... Oil-impregnated metal, 4... Shaft, 5... First pinion, 6... Second pinion, 7... Engine side gear, 8... Dowel pin, 9... Guide bin, 10...
...Groove, 11...Spring, 12...Washer,
13...Clip. Agent Patent attorney Takahashi [uj': Husband - 1□'mo]' ・ S"'Jd, ) (-, 1,, - 27\ seconds Jjf7J □O
Claims (1)
側に伝達するギヤー機構において、駆動側に1個のギヤ
ーを配すると共に、該ギヤーに噛合させて複数のギヤー
を同軸線上に前記被駆動側に配したことを特徴とするギ
ヤー機構。 2、 前記複数のギヤーの一個を軸方向に移動可能とし
たことを特徴とする特許請求の範囲第1項記載のギヤー
機構。 3、 前記駆動側ギヤーに対し前記複数の被駆動側ギヤ
ーにより面下が加わるように前記移動ギヤーを弾性部材
により付勢したことを特徴とする特許請求の範囲第2項
記載のギヤーP2構。 4、@記弾性部材全前記複数の被駆動側ギヤー間に配設
したこと全特徴とする特許請求の範囲第2項記載のギヤ
ー機構。[Claims] 1. In a gear mechanism that transmits the rotational force of the drive source element to the driven side via a fully helical gear, one gear is disposed on the drive side and meshed with the gear. A gear mechanism characterized in that a plurality of gears are coaxially arranged on the driven side. 2. The gear mechanism according to claim 1, wherein one of the plurality of gears is movable in the axial direction. 3. The gear P2 structure according to claim 2, wherein the movable gear is biased by an elastic member so that the plurality of driven gears apply a downward force to the driving gear. 4. The gear mechanism according to claim 2, wherein all of the elastic members are disposed between the plurality of driven gears.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15261482A JPS5943258A (en) | 1982-09-03 | 1982-09-03 | Gear mechanism |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15261482A JPS5943258A (en) | 1982-09-03 | 1982-09-03 | Gear mechanism |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5943258A true JPS5943258A (en) | 1984-03-10 |
Family
ID=15544231
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15261482A Pending JPS5943258A (en) | 1982-09-03 | 1982-09-03 | Gear mechanism |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5943258A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03105067A (en) * | 1989-09-19 | 1991-05-01 | Nippondenso Co Ltd | Power transmission device for ignition distributor for internal combustion engine |
EP0443602A2 (en) * | 1990-02-22 | 1991-08-28 | Mitsubishi Denki Kabushiki Kaisha | Distributor for igniting combustion engine |
DE4328587A1 (en) * | 1992-09-24 | 1994-03-31 | Hitachi Ltd | Drive mechanism for engine ignition system - has housing fixed to engine, and driven shaft of ignition system rotatably located through housing |
CN107152497A (en) * | 2017-07-17 | 2017-09-12 | 重庆清平机械有限责任公司 | Worm with variable tooth thickness and its transmission |
EP3995890A1 (en) * | 2020-11-10 | 2022-05-11 | Canon Kabushiki Kaisha | Pan or tilt head and imaging device |
-
1982
- 1982-09-03 JP JP15261482A patent/JPS5943258A/en active Pending
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03105067A (en) * | 1989-09-19 | 1991-05-01 | Nippondenso Co Ltd | Power transmission device for ignition distributor for internal combustion engine |
EP0443602A2 (en) * | 1990-02-22 | 1991-08-28 | Mitsubishi Denki Kabushiki Kaisha | Distributor for igniting combustion engine |
US5088459A (en) * | 1990-02-22 | 1992-02-18 | Mitsubishi Denki K.K. | Distributor for igniting combustion engine |
EP0443602A3 (en) * | 1990-02-22 | 1993-10-27 | Mitsubishi Electric Corp | Distributor for igniting combustion engine |
DE4328587A1 (en) * | 1992-09-24 | 1994-03-31 | Hitachi Ltd | Drive mechanism for engine ignition system - has housing fixed to engine, and driven shaft of ignition system rotatably located through housing |
CN107152497A (en) * | 2017-07-17 | 2017-09-12 | 重庆清平机械有限责任公司 | Worm with variable tooth thickness and its transmission |
EP3995890A1 (en) * | 2020-11-10 | 2022-05-11 | Canon Kabushiki Kaisha | Pan or tilt head and imaging device |
US11640103B2 (en) | 2020-11-10 | 2023-05-02 | Canon Kabushiki Kaisha | Pan or tilt head and imaging device |
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