JPH0650169A - Gear shift unit for driving engine auxiliary machine - Google Patents

Gear shift unit for driving engine auxiliary machine

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Publication number
JPH0650169A
JPH0650169A JP20561592A JP20561592A JPH0650169A JP H0650169 A JPH0650169 A JP H0650169A JP 20561592 A JP20561592 A JP 20561592A JP 20561592 A JP20561592 A JP 20561592A JP H0650169 A JPH0650169 A JP H0650169A
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Prior art keywords
member
gear
portion
pulley
output member
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Pending
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JP20561592A
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Japanese (ja)
Inventor
Shuzo Hiragushi
周三 平櫛
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Koyo Seiko Co Ltd
光洋精工株式会社
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Abstract

PURPOSE:To provide a gear shift unit which is reduced in size and attached directly to an auxiliary machine and low in load capacity. CONSTITUTION:A unit A comprises a boss part 5b fixed to the housing B1 of an auxiliary machine B, and a coupling part 1d coupled to the drive shaft B2 of the auxiliary machine B. A planetary gear mechanism P is arranged on the inner peripheral side of a pulley 2 and size is reduced. A centrifugal clutch 8 mechanism is operated at a given number of revolutions or more to work the planetary gear mechanism P. By forming together the devices to form a unit, the unit can be attached to each of auxiliary machines B. Load capacity is reduced and size is further reduced.

Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【0001】 [0001]

【産業上の利用分野】この発明は、エンジンの回転を変速して補機に伝えるエンジン補機駆動用変速装置に関するものである。 BACKGROUND OF THE INVENTION This invention relates to an engine accessory drive for transmission to tell the auxiliary machine by shifting the rotation of the engine.

【0002】 [0002]

【従来の技術および発明が解決しようとする課題】自動車等の補機駆動用変速装置は、エンジンからの回転入力で補機の回転駆動を行うのに際し、エンジンの始動・低速時には、エンジン側の回転を増速して補機側の駆動軸に伝達しなければならない。 BACKGROUND OF INVENTION It is an object of the accessory drive gear shifting device such as an automobile, upon perform rotation driving of the auxiliary machine by the rotation input from the engine, during starting and low speed of the engine, the engine side rotation speed increased to must be communicated to accessory side of the drive shaft. 従来、遊星ギア機構内の所定部の回転を、電気的な制動手段により拘束することにより、プーリの回転数に応じて2段階の出力側回転数を得るようにした装置が提供されている。 Conventionally, the rotation of the predetermined portion of the planetary gear mechanism, by restraining the electric braking means, apparatus to obtain an output side rotation speed of the two stages in accordance with the rotational speed of the pulley is provided.

【0003】しかし、上記の制動手段を作動させるための、装置外部のバッテリからの電源入力が必要となり、 However, for operating the braking means, required power input from outside the device battery,
そのエネルギ消費は、エンジンの運転上、不都合である。 Its energy consumption, on operation of the engine, which is undesirable. また、外部からの入力による制動では、タイミングが遅れて、エンジンの始動・低速状態における補機増速効果が十分に発揮されない。 Further, the braking by the external input, the timing is delayed, auxiliary acceleration effect in starting and low-speed state of the engine is not sufficiently exhibited. さらに、電気的な制動手段としての、例えば電磁クラッチ等は、構造が複雑であるうえに変速装置の大型化を招く。 Furthermore, as an electrical braking means, for example, an electromagnetic clutch or the like, increasing the size of the transmission on top structure is complicated.

【0004】一方、従来は、エンジンからの駆動回転を単一の変速装置を介して変速し、これをベルトを介して複数の補機へ動力を伝達していた。 On the other hand, conventionally, the driving rotation from the engine to the transmission through a single transmission, which through the belt has been transmitting the power to the plurality of accessory. したがって、上記の変速装置には、複数の補機を駆動するための駆動力を加算したものが負荷されることになり、変速装置の負荷容量が大きかった。 Accordingly, the above transmission apparatus, will be obtained by adding the driving force for driving a plurality of auxiliary equipment is loaded, the load capacity of the transmission is large. また、負荷容量が大きいために、変速装置が大型化するという問題があった。 In order load capacitance is large, the transmission is disadvantageously large.

【0005】この発明は、小型で補機に直接取り付けることができ負荷容量を小さくすることができるエンジン補機駆動用変速ユニットを提供することを目的とする。 [0005] This invention aims to provide an engine accessory drive gear change unit which can reduce the load capacitance can be attached directly to the compact and accessory.

【0006】 [0006]

【課題を解決するための手段】上記の目的を達成するため、この発明に係るエンジン補機駆動用変速ユニットは、筒状をしており、その外周面に伝動帯が巻き掛けられる伝動面を形成した入力用プーリと、このプーリの内周側に配置され、外筒部、内筒部およびこれらの一端部どうしを連結する側壁部を有する二重筒に形成されるとともに、内筒部の内周面に、補機の駆動軸への連結部を有する出力部材と、プーリと出力部材との間に介在して両者を一体回転可能に連結するとともに、所定の回転数以上で両者の連結を解除する遠心クラッチ機構と、プーリと一体回転可能に設けられ、内周面にリングギアを形成した環状の内歯部材と、内歯部材と同軸に配置され、 Means for Solving the Problems] To achieve the above object, an engine accessory drive gear change unit according to the invention has a cylindrical shape, the transmission surface of the transmission belt is wound on the outer circumferential surface and forming the input pulley is disposed on the inner peripheral side of the pulley, the outer tube portion is formed in a inner cylindrical portion and the double cylinder having a side wall portion connecting these end portions with each other, of the inner cylindrical portion the inner circumferential surface, an output member having a connecting portion to the drive shaft of the auxiliary machine, with integrally rotatably connected to each other is interposed between the pulley and the output member, both connected at a predetermined rotation number or more a centrifugal clutch mechanism for releasing the pulley and provided so as to be integrally rotatable, and the internal teeth annular member forming a ring gear on the inner peripheral surface, is arranged in the internal gear member coaxially,
補機のハウジングに固定される固定部を有するとともに外周面にサンギアを形成した外歯部材と、外歯部材のサンギア、これに噛み合わされ且つキャリアによって回転自在に支持された遊星ギア群、および内歯部材のリングギアを含む遊星ギア機構と、キャリアと出力部材との間に介在した一方向クラッチ機構とを備え、上記遠心クラッチ機構、内歯部材、遊星ギア機構、外歯部材および一方向クラッチ機構は、出力部材の外筒部と内筒部との間に収容されていることを特徴とするものである。 An outer teeth member formed with the sun gear on an outer circumferential surface and having a fixing portion fixed to the housing of the accessory, the sun gear of the external gear member, which in interlocked and planetary gears rotatably supported by the carrier, and the inner comprising a planetary gear mechanism including a ring gear teeth members, and a one-way clutch mechanism interposed between the carrier and the output member, the centrifugal clutch mechanism, the internal gear member, a planetary gear mechanism, the external gear member and the one-way clutch mechanism is characterized in that it is housed between the outer tubular portion and the inner cylindrical portion of the output member.

【0007】 [0007]

【作用】上記の構成のエンジン補機駆動用変速ユニットによれば、プーリの回転が所定の回転数を超えない状態では、出力部材が遠心クラッチを介してプーリと一体に回転しており、プーリの回転がそのまま駆動軸に伝達される。 According to the engine accessory drive gear change unit of the action] of the above configuration, in the state in which rotation of the pulley does not exceed the predetermined rotational speed, the output member is rotating the pulley and integrally through a centrifugal clutch, a pulley rotation of is transmitted directly to the drive shaft. このとき、遊星ギア機構のキャリアと出力部材との間に設けた一方向クラッチ機構は滑っている。 At this time, the one-way clutch mechanism provided between the carrier and the output member of the planetary gear mechanism is slipped.

【0008】一方、プーリの回転が所定の回転数以上になると、遠心クチッチ機構が作動して、当該遠心クラッチ機構によるプーリと出力部材との連結が解除される。 On the other hand, the rotation of the pulley becomes equal to or larger than a predetermined rotational speed, the centrifugal Kuchitchi mechanism is actuated, the connection between the pulley and the output member by the centrifugal clutch mechanism is released.
これにより、プーリの回転は、内歯部材、遊星ギア、キャリア、一方向クラッチおよび出力部材を介して、所定の変速比をもって駆動軸に伝達されることになる。 Thus, the rotation of the pulleys, the internal gear member, a planetary gear, the carrier, through a one-way clutch and the output member will be transmitted to the drive shaft with a predetermined speed ratio. 筒状のプーリの内周側に、変速のための遊星ギア機構を含む各部材を配置したので、全体を小型にすることができる。 The inner peripheral side of the cylindrical pulley, since the arrangement of each member comprising a planetary gear mechanism for shifting, it is possible to make the whole compact. このように小型であり、しかも、各補機のハウジングに取り付けるための固定部、および各補機の駆動軸に連結するための連結部を設けてユニット化してあるので、各補機のそれぞれに直接取り付けて用いることが可能となる。 Thus a compact, yet, since the fixing portions for mounting to the housing of the accessory, and are unitized by providing a connection for connecting to a drive shaft of the auxiliary machine, to each of the accessory it is possible to use attachment directly.

【0009】しかも、出力部材によって、変速ユニットのハウジングを兼ねさせることができる。 [0009] Moreover, the output member may serve also as a housing of the transmission unit.

【0010】 [0010]

【実施例】以下実施例を示す添付図面によって詳細に説明する。 BRIEF DESCRIPTION detail by the accompanying drawings show the following examples. 図1は、この発明の一実施例としてのエンジン補機駆動用変速ユニットの概略断面図である。 Figure 1 is a schematic sectional view of an engine accessory drive for shifting unit according to an embodiment of the present invention. 同図を参照して、このエンジン補機駆動用変速ユニット(以下、 With reference to the figure, the engine accessory drive gear change unit (hereinafter,
実施例において、単に変速ユニットAという)は、例えば、冷却ファン、エアコン用コンプレッサおよびオルタネータ等の補機BのハウジングB1および駆動軸B2に取り付けられており、エンジンE側の回転を、低回転時のみに増速して、補機B側に伝達するものである(図2 In an embodiment, simply) of the speed change unit A, for example, a cooling fan mounted to the housing B1 and the drive shaft B2 of the accessory B such as air conditioning compressor and alternator, the rotation of the engine E side, at low rotation only then accelerated, it is to transmit to the auxiliary machine B side (Fig. 2
参照)。 reference). なお、以下において、図においての左右を左右という。 Incidentally, in the following, it referred to the left and right left and right in FIG.

【0011】図1を参照して、変速ユニットAは、伝動帯としてのベルトDが巻き掛けられる筒状のプーリ2 [0011] Referring to FIG. 1, the speed change unit A cylindrical pulley 2 belt D as transmission belt is wound
と、このプーリ2に一体に形成され、内周面にリングギア3aを形成した内歯部材3と、補機BのハウジングB If, formed integrally with the pulley 2, and the internal gear member 3 which forms a ring gear 3a in the inner circumferential surface, a housing B of the accessory B
1に固定される固定部としてのボス部5bを有し、外周面にサンギア5aを形成した外歯部材5と、プーリ2の内周側に配置された二重筒からなり、内筒部1bの内周面に、補機Bの駆動軸B2への連結部1dを有する出力部材1と、上記リングギア3a、キャリア10によって支持された遊星ギア群4およびサンギア5aからなる遊星ギア機構Pと、出力部材1のキャリア10に対する、 Has a boss portion 5b of the fixing portion fixed to 1, the external gear member 5 formed with the sun gear 5a on the outer peripheral surface, made of double cylinder which is disposed on the inner peripheral side of the pulley 2, the inner cylindrical portion 1b the inner peripheral surface of the output member 1 having a connecting portion 1d of the drive shaft B2 of the accessory B, a planetary gear mechanism P consisting of the ring gear 3a, supported planetary gears 4 and the sun gear 5a by the carrier 10 , relative to the carrier 10 of the output member 1,
相対回転方向の一方向のみの回転を許容する一方向クラッチ6と、プーリ2と出力部材1との間に介在して両者を一体回転可能に連結するとともに、所定の回転数以上で両者の連結を解除する遠心クラッチ機構8とを備えている。 A one-way clutch 6 to allow rotation only in one direction of relative rotation direction, thereby integrally rotatably connected to each other interposed between the pulley 2 and the output member 1, both connected at a predetermined rotation number or more and a centrifugal clutch mechanism 8 for releasing the.

【0012】プーリ2の外周面には、上記ベルトDが巻き掛けられるW溝形状の伝動面2aが形成されている。 [0012] the outer peripheral surface of the pulley 2, transmission surface 2a of the W groove shape in which the belt D is wound is formed.
プーリ2のボス部2bは、玉軸受11を介して外歯部材5のボス部5bによって回転自在に支持されている。 Boss portion 2b of the pulley 2 is rotatably supported by the boss portion 5b of the outer teeth member 5 via a ball bearing 11. 出力部材1は、外筒部1a、内筒部1bおよびこれらの一端部どうしを連結する側壁部1cを有している。 Output member 1 has an outer cylindrical portion 1a, the inner cylindrical portion 1b and the side wall portion 1c for connecting the end portion to each other. この出力部材1は、半断面にて略コ字形形状を呈する。 The output member 1 exhibits a substantially U-shaped shape in half-section. 外筒部1aの内周面は、内歯部材3の外周面と一体回転可能にスプライン嵌合されている。 The inner peripheral surface of the outer tubular portion 1a is integrally rotatably splined with the outer peripheral surface of the internal gear member 3. 上記の内歯部材3、遊星ギア機構P、外歯部材5、一方向クラッチ機構6および遠心クラッチ8は、出力部材1の外筒部1と内筒部1bとの間に配置されており、出力部材1によって、当該ユニットAのハウジングが兼用されている。 Said internal teeth member 3, the planetary gear mechanism P, the external gear member 5, the one-way clutch mechanism 6 and the centrifugal clutch 8 is disposed between the inner cylindrical portion 1b and the outer tubular section 1 of the output member 1, the output member 1, the housing of the unit a is also used.

【0013】図1および図3を参照して、外筒部1aの内周面の、側壁部1c付近には、複数の(例えば6か所)凹所からなるカム部1eが、円周等配に設けられている。 [0013] With reference to FIGS. 1 and 3, the inner peripheral surface of the outer cylindrical portion 1a, in the vicinity of the side wall portions 1c, cam portion 1e made of a plurality of (e.g., six) recess, circumferential, etc. It is provided in the distribution. 各カム部1e内には、当該カム部1e内のカム面1fに対して、所要時に圧接される円柱ころ6aが収容されている。 Within each cam portion 1e, with respect to the cam surface 1f in the cam portion 1e, cylindrical rollers 6a which is pressed when required is accommodated. カム面1fは、出力部材1がキャリア10 Cam surface 1f, the output member 1 carrier 10
に対して所定の回転方向に回転したときのみに、ころ6 Only when rotated in a predetermined rotation direction relative to the roller 6
aと協働して、出力部材1とキャリア10との回転を拘束する。 In cooperation with a, for restraining the rotation of the output member 1 and the carrier 10. 一方向クラッチ機構6は、上記カム部1e、円筒ころ6aおよびキャリア10の外周面により構成され、図3において、出力部材1に対してキャリア10が白抜き矢符の方向に相対回転した時に、出力部材1とキャリア10の回転を拘束し、両者を一体回転させる。 The one-way clutch mechanism 6 is constituted by an outer peripheral surface of the cam portion 1e, cylindrical rollers 6a and the carrier 10, in FIG. 3, when the carrier 10 is relatively rotated in the direction of the white arrow with respect to the output member 1, restraining the rotation of the output member 1 and the carrier 10, thereby integrally rotate them.

【0014】また、外筒部1aの内周面の、開口端部付近には、全周にわたってラチェット歯1gが形成されている。 Further, the inner peripheral surface of the outer cylindrical portion 1a, in the vicinity of the open end, the ratchet teeth 1g is formed over the entire circumference. このラチェット歯1gは、プーリ2の回転が所定の回転数を超えない状態で、遠心クラッチ機構8の、後述する重錘部材83の爪部83aと係合される。 The ratchet teeth 1g is a state where the rotation of the pulley 2 does not exceed the predetermined rotation speed, the centrifugal clutch mechanism 8 is engaged with the claw portion 83a of the weight member 83 to be described later. 図1および図4を参照して、遠心クラッチ機構8は、プーリ2 Referring to FIGS. 1 and 4, the centrifugal clutch mechanism 8, the pulley 2
に一体に形成された内歯部材3に円周等配に配置された複数の(例えば4か所)収容凹部31と、この収容凹部31内に軸84によって回転自在に支持された、爪部8 A plurality of (e.g. four) accommodating recess 31 arranged circumferentially equidistant to the internal gear member 3 formed integrally with and is rotatably supported by a shaft 84 to the housing recess 31, the pawl portion 8
3a付きの重錘部材83と、出力部材1の上記ラチェット歯1gとを備えている。 A weight member 83 with 3a, comprises of the aforementioned ratchet teeth 1g output member 1. なお、重錘部材83を支持する軸84は、重錘部材83の爪部83a側に片寄った位置に設けられており、重錘部材83の重心位置が軸84 The shaft 84 is provided at one-sided position on the claw portion 83a side of the weight member 83, the center of gravity of the weight member 83 is shaft 84 which supports the weight member 83
よりも尻部83b側に位置するようにしてある。 It is so as to be positioned butt portion 83b side from.

【0015】この遠心クラッチ機構8においては、プーリ2の回転が所定の回転数を超えない状態では、図4に実線で示すように、重錘部材83の爪部83aがラチェット歯1gに噛み合わされるとともに、重錘部材83の尻部83bが収容凹部31内の回転方向上流側の壁面3 [0015] In this centrifugal clutch mechanism 8, when the rotation of the pulley 2 does not exceed the predetermined rotational speed, as shown by the solid line in FIG. 4, the claw portion 83a of the weight member 83 is engaged with the ratchet teeth 1g Rutotomoni, wall 3 of the upstream side in the rotational direction of the butt portion 83b is housing recess 31 of the weight member 83
2に当接する。 2 to abut. これにより、出力部材1とプーリ2とが重錘部材83を介して一体回転可能に連結される。 Thus, an output member 1 and the pulley 2 is integrally rotatably connected through the weight member 83.

【0016】一方、プーリ2の回転が所定の回転数以上になると、図4の破線で示すように、重錘部材83の尻部83bが軸84を中心として遠心方向に振られるとともに、爪部83aとラチェット歯1gとの係合が解除される。 [0016] On the other hand, when the rotation of the pulley 2 becomes equal to or higher than a predetermined speed, as indicated by the broken line in FIG. 4, the butt portion 83b of the weight member 83 is swung in the centrifugal direction about the axis 84, the claw portion 83a engage with ratchet teeth 1g is released. これにより、出力部材1とプーリ2とは、相対回転自在となる。 Thus, the output member 1 and the pulley 2, relatively rotatable. なお、上記の係合解除状態において、重錘83の尻部83bが収容凹部31から飛び出して、ラチェット歯1gと干渉することがないように、爪部83 Note that, in the disengaged state of the, protrudes Ass portion 83b is housing recess 31 of the weight 83, so as not to interfere with the ratchet teeth 1g, claw portions 83
aが収容凹部31内の壁面32と当接されるようにしてある。 a is it is to be brought into contact with the wall surface 32 of the concave 31.

【0017】遊星ギア群4は、リングギア3aとサンギア5aとに、互いに噛み合わされて回転する遊星ギア4 The planet gears 4, the planetary gear 4, which rotates the ring gear 3a and the sun gear 5a, and interdigitated
aにより構成されている。 It is constituted by a. 次に、この変速ユニットAの動作について説明する。 Next, the operation of the speed change unit A. エンジン側の回転数が低くて、 And low engine rpm,
プーリ2の回転が所定の回転数を超えない場合には、遠心クラッチ機構8の重錘部材83の遠心力が小さいので、重錘部材83の爪部83aと出力部材1のラチェット歯1gが噛み合わされている。 When the rotation of the pulley 2 does not exceed the predetermined rotation speed, the centrifugal force of the weight member 83 of the centrifugal clutch mechanism 8 is small, engage the pawl portion 83a and the ratchet teeth 1g of the output member 1 of the weight member 83 It is. したがって、プーリ2 Thus, the pulley 2
の回転が、遠心クラッチ機構8および出力部材1を介して、そのまま補機Bの駆動軸B2に伝達される(図5のd部分参照)。 Rotation of, via a centrifugal clutch mechanism 8 and the output member 1 is transmitted directly to the drive shaft B2 of the accessory B (see part d of FIG. 5). このとき、遊星ギア機構Pのキャリア1 At this time, the carrier 1 of the planetary gear mechanism P
0と出力部材1との間に設けた一方向クラッチ機構6は滑っている。 0 and the one-way clutch mechanism 6 provided between an output member 1 is slipped.

【0018】一方、プーリ2の回転が所定の回転数以上になると、遠心クラッチ機構8が作動して、当該遠心クラッチ機構8によるプーリ2と出力部材1との連結が解除される。 Meanwhile, when the rotation of the pulley 2 becomes equal to or higher than a predetermined speed, and the centrifugal clutch mechanism 8 is actuated, the connection between the pulley 2 and the output member 1 by the centrifugal clutch mechanism 8 is released. これにより、プーリ2の回転は、内歯部材3、遊星ギア群4、キャリア10、一方向クラッチ6および出力部材1を介して、遊星ギア機構Pの所定の変速比をもって、補機Bの駆動軸B2に伝達されることになる(図5のe部分参照)。 Thus, rotation of the pulley 2, the internal gear member 3, the planetary gear set 4, a carrier 10, through a one-way clutch 6 and the output member 1, with a predetermined gear ratio of the planetary gear mechanism P, driving the auxiliary machine B It will be transmitted to the shaft B2 (see e portion of FIG. 5).

【0019】この実施例によれば、筒状のプーリ2の内周側に、変速のための遊星ギア機構Pを設けたので、全体を小型にすることができる。 According to this embodiment, the inner peripheral side of the cylindrical pulley 2, is provided with the planetary gear mechanism P for transmission, it is possible to make the whole compact. このように小型であり、 In this way it is small in size,
しかも、各補機BのハウジングB1に取り付けるための固定部としてのボス部5b、および各補機Bの駆動軸B Moreover, the boss portion 5b of the fixing portion for attaching the housing B1 of each accessory B, and the drive shaft B of the accessory B
2に連結するための連結部1dを設けてユニット化してあるので、図2に示すようにエンジンEにより駆動される各補機Bのそれぞれに直接取り付けて用いることが可能となる。 Since the connecting portion 1d for coupling to 2 are unitized provided, it is possible to use attached directly to each of the accessory B driven by the engine E, as shown in FIG.

【0020】このように各補機Bに取り付けられた各変速ユニットAは、それが取り付けられた補機Bを駆動するのに必要な駆動力のみを分担すれば良いことになる。 [0020] Thus each gear unit A attached to each auxiliary machine B is it is sufficient to share only the driving force required for driving the auxiliary machine B to which it is attached.
したがって、変速ユニットAの負荷容量としては、従来のようにエンジン側に設けられた一つの変速装置で多くの補機への駆動力を供給する場合の、当該変速装置の負荷容量と比較して、大幅に低減することができ、これにより、変速ユニットAの一層の小型化を図ることができる。 Therefore, the load capacity of the gear unit A, the case of supplying a driving force to many auxiliary conventional single transmission provided on the engine side as compared with the load capacity of the transmission , it can be significantly reduced, thereby, it is possible to further reduce the size of the transmission unit a.

【0021】また、変速の切り換えを、ラチェット機構を用いた遠心クラッチ機構8により機械的に行うので、 Further, the switching of the shift, the mechanically performed by the centrifugal clutch mechanism 8 using a ratchet mechanism,
バッテリからの入力等を必要とせず、したがって、電磁クラッチを用いた場合のようなバッテリ消費がない。 Without requiring input or the like from the battery, therefore, there is no battery consumption as in the case of using the electromagnetic clutch. また、応答性にも優れている。 In addition, it is also excellent in response. さらに、出力部材1を構成する二重筒内に、遊星ギア機構Pその他の機構を収容することにより、当該出力部材によって、変速ユニットA Furthermore, a double cylinder which constitutes the output member 1, by accommodating the planetary gear mechanism P other mechanisms, by the output member, the shift unit A
のハウジングを兼ねさせることができる。 It is possible to serve also as the housing. したがって、 Therefore,
別途にハウジングを設ける必要がなく、製造コストを安くすることができる。 It is not necessary to provide the housing separately, it is possible to reduce the manufacturing cost. この場合、出力部材1を板金形成すれば、製造コストを一層安くすることができる。 In this case, the output member 1 when sheet metal forming, the manufacturing cost can be further cheaply.

【0022】なお、この発明は上記実施例に限定されるものではなく、この発明の要旨を変更しない範囲で種々の設計変更を施すことができる。 [0022] The present invention is not limited to the above embodiments, it can be subjected to various modifications within the scope not changing the gist of the present invention.

【0023】 [0023]

【発明の効果】以上のように本発明のエンジン補機駆動用変速ユニットによれば、筒状のプーリの内周側に遊星ギア機構を設けてあるので、全体を小型にすることができる。 According to the engine accessory drive gear change unit of the present invention as described above, according to the present invention, since the inner peripheral side of the cylindrical pulley is provided with a planetary gear mechanism, it can be a whole compact. しかも補機のハウジングおよび駆動軸に取り付けできるようにユニット化してあるので、上記の小型化と相まって、各補機のそれぞれに直接取り付けて用いることが可能となる。 Moreover, since are unitized so as to be attached to the housing and the drive shaft of the auxiliary machine, combined with reduction in size of the, it is possible to use attached directly to each of the accessory. このように各補機に取り付けられたユニットは、それが取り付けられた補機を駆動するのに必要な駆動力のみを分担すれば良いことになる。 The unit attached to the accessory as would it may be shared by only the driving force required for driving the accessory mounted. したがって、ユニットに負荷容量としては、従来のようにエンジン側に設けられた一つの変速装置で多くの補機への駆動力を供給する場合の、当該変速装置の負荷容量と比較して、大幅に低減することができ、これにより、ユニットの一層の小型化を図ることができる。 Therefore, the load capacitance unit, the case of supplying a driving force to many auxiliary conventional single transmission provided on the engine side as compared with the load capacity of the transmission, greatly it can be reduced to, thereby, it is possible to further reduce the size of the unit. また、出力部材によって当該ユニットのハウジングを兼用することが可能となり、別途にハウジングを設ける場合と比較して製造コストを安くすることができる。 Further, it becomes possible to use the housing of the unit by the output member, it is possible to reduce the manufacturing cost as compared with the case of separately providing the housing.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】本発明の一実施例に係るエンジン補機駆動用変速ユニットの要部の縦断面図である。 1 is a longitudinal sectional view of a main part of the engine accessory drive transmission unit according to an embodiment of the present invention.

【図2】エンジンから各補機への駆動伝達経路を示す概略系統図である。 2 is a schematic system diagram showing a drive transmission path to each accessory from the engine.

【図3】軸方向から見た一方向クラッチ機構の概略断面図である。 3 is a schematic cross-sectional view of the one-way clutch mechanism as viewed in the axial direction.

【図4】軸方向から見た遠心クラッチ機構の概略断面図である。 4 is a schematic cross-sectional view of a centrifugal clutch mechanism as viewed in the axial direction.

【図5】プーリの回転数と補機の駆動軸の回転数との関係を示す図である。 5 is a diagram showing the relationship between the number of revolutions of the pulley and the auxiliary machine driving shaft.

【符号の説明】 DESCRIPTION OF SYMBOLS

1 出力部材 1a 外筒部 1b 内筒部 1c 側壁部 1d 連結部 2 プーリ 2a 伝動面 3 内歯部材 3a リングギア 4 遊星ギア群 5 外歯部材 5a サンギア 5b ボス部(固定部) 10 キャリア 6 一方向クラッチ機構 8 遠心クラッチ機構 B 補機 B1 ハウジング B2 駆動軸 D ベルト(伝動帯) 1 output member 1a outer cylindrical portion 1b inside the tubular portion 1c side wall portion 1d connecting portion 2 pulleys 2a transmission surface 3 internal gear member 3a ring gear 4 planetary gears 5 external gear member 5a sun gear 5b boss (fixing unit) 10 Carrier 6 one way clutch mechanism 8 centrifugal clutch mechanism B accessory B1 housing B2 drive shaft D belt (transmission band)

Claims (1)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】筒状をしており、その外周面に伝動帯が巻き掛けられる伝動面を形成した入力用プーリと、 このプーリの内周側に配置され、外筒部、内筒部およびこれらの一端部どうしを連結する側壁部を有する二重筒に形成されるとともに、内筒部の内周面に、補機の駆動軸への連結部を有する出力部材と、 プーリと出力部材との間に介在して両者を一体回転可能に連結するとともに、所定の回転数以上で両者の連結を解除する遠心クラッチ機構と、 プーリと一体回転可能に設けられ、内周面にリングギアを形成した筒状の内歯部材と、 内歯部材と同軸に配置され、補機のハウジングに固定される固定部を有するとともに外周面にサンギアを形成した外歯部材と、 外歯部材のサンギア、これに噛み合わされ且つキャリアによって回転自在 1. A has a cylindrical, an input pulley forming a transmission surface of the transmission belt is wound on the outer peripheral surface thereof, it is disposed on the inner peripheral side of the pulley, the outer tube portion, the inner cylindrical portion and is formed in a double cylinder having a side wall portion connecting these end portions with each other, the inner peripheral surface of the inner cylindrical portion, an output member having a connecting portion to the drive shaft of the auxiliary machine, a pulley and an output member with integrally rotatably connected to each other interposed between the formation and the centrifugal clutch mechanism, pulleys and provided so as to be integrally rotatable, a ring gear on the inner circumferential surface to release both connection at a predetermined rotation number or more a cylindrical inner teeth member that is disposed in the internal gear member coaxially, the outer teeth member formed with the sun gear on an outer circumferential surface and having a fixing portion fixed to the housing of the accessory, the external gear member sun gear, which rotatably by interdigitated and carriers 支持された遊星ギア群、および内歯部材のリングギアを含む遊星ギア機構と、 キャリアと出力部材との間に介在した一方向クラッチ機構とを備え、 上記遠心クラッチ機構、内歯部材、遊星ギア機構、外歯部材および一方向クラッチ機構は、出力部材の外筒部と内筒部との間に収容されていることを特徴とするエンジン補機駆動用変速ユニット。 It supported planetary gears, and comprises a planetary gear mechanism including a ring gear of the internal gear member, and a one-way clutch mechanism interposed between the carrier and the output member, the centrifugal clutch mechanism, the internal gear member, a planetary gear mechanism, the external gear member and the one-way clutch mechanism, the engine accessory drive gear change unit, characterized in that it is housed between the outer tubular portion and the inner cylindrical portion of the output member.
JP20561592A 1992-07-31 1992-07-31 Gear shift unit for driving engine auxiliary machine Pending JPH0650169A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20561592A JPH0650169A (en) 1992-07-31 1992-07-31 Gear shift unit for driving engine auxiliary machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20561592A JPH0650169A (en) 1992-07-31 1992-07-31 Gear shift unit for driving engine auxiliary machine

Publications (1)

Publication Number Publication Date
JPH0650169A true true JPH0650169A (en) 1994-02-22

Family

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Family Applications (1)

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JP20561592A Pending JPH0650169A (en) 1992-07-31 1992-07-31 Gear shift unit for driving engine auxiliary machine

Country Status (1)

Country Link
JP (1) JPH0650169A (en)

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US4848273A (en) * 1986-02-14 1989-07-18 Nippon Telegraph & Telephone Corporation Epitaxial growth method and apparatus therefor
JP2011513654A (en) * 2008-02-27 2011-04-28 ザ ゲイツ コーポレイション Planetary transmission
JP2014051986A (en) * 2006-06-26 2014-03-20 Fallbrook Intellectual Property Co Llc Continuous variable transmission machine
US9611921B2 (en) 2012-01-23 2017-04-04 Fallbrook Intellectual Property Company Llc Infinitely variable transmissions, continuously variable transmissions, methods, assemblies, subassemblies, and components therefor
US9618100B2 (en) 2008-05-07 2017-04-11 Fallbrook Intellectual Property Company Llc Assemblies and methods for clamping force generation
US9676391B2 (en) 2007-02-01 2017-06-13 Fallbrook Intellectual Property Company Llc Systems and methods for control of transmission and/or prime mover
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US4848273A (en) * 1986-02-14 1989-07-18 Nippon Telegraph & Telephone Corporation Epitaxial growth method and apparatus therefor
US9732848B2 (en) 2003-02-28 2017-08-15 Fallbrook Intellectual Property Company Llc Continuously variable transmission
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US9683638B2 (en) 2005-12-30 2017-06-20 Fallbrook Intellectual Property Company Llc Continuously variable gear transmission
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US10094453B2 (en) 2007-02-16 2018-10-09 Fallbrook Intellectual Property Company Llc Infinitely variable transmissions, continuously variable transmissions, methods, assemblies, subassemblies, and components therefor
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