JPH0533834A - Gear connecting member supporting structure for automatic transmission - Google Patents

Gear connecting member supporting structure for automatic transmission

Info

Publication number
JPH0533834A
JPH0533834A JP3208851A JP20885191A JPH0533834A JP H0533834 A JPH0533834 A JP H0533834A JP 3208851 A JP3208851 A JP 3208851A JP 20885191 A JP20885191 A JP 20885191A JP H0533834 A JPH0533834 A JP H0533834A
Authority
JP
Japan
Prior art keywords
gear
automatic transmission
connecting member
brake
input 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.)
Pending
Application number
JP3208851A
Other languages
Japanese (ja)
Inventor
Yuji Hayashi
祐二 林
Yasuichi Hayazaki
康市 早▲崎▼
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor 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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP3208851A priority Critical patent/JPH0533834A/en
Publication of JPH0533834A publication Critical patent/JPH0533834A/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
    • F16H57/08—General details of gearing of gearings with members having orbital motion
    • F16H57/10—Braking arrangements

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Details Of Gearings (AREA)
  • Structure Of Transmissions (AREA)

Abstract

PURPOSE:To contrive compactness of an automatic transmission by extending an end part, positioned to a gear of a gear connecting member in an automatic transmission, to change a supporting position to the internal periphery from the concerned gear, and forming a supporting member of the gear connecting member in lowness of capacity and smallnese in size. CONSTITUTION:A connection part 29c of a brake drum 29 is extended to the internal periphery from a ring gear 4R to hold this extended end part interposed between a rotary member 37 and a carrier 4c by bearings 31, 32. The connection part 29c and the ring gear 4R are fitted by sinking comb and fixed by snap rings 38 to 40. Since the ring gear 4R is supported by the bearings 31, 32 through the connection part 29c of the brake drum 29, smallness in a diameter and lowness of a peripheral speed of the bearing can be attained from an example in the past, and accordingly these bearings can be provided with lowness in capacity and smallness in size.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明はブレーキドラム等の歯車
連結部材を支持する支持部材を低容量化、小型化するこ
とのできる、自動変速機の歯車連結部材支持構造に関す
るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gear connecting member supporting structure for an automatic transmission, which can reduce the capacity and size of a supporting member for supporting a gear connecting member such as a brake drum.

【０００２】[0002]

【従来の技術】歯車連結部材が当該歯車よりも外周方向
に配置される構成の自動変速機の、歯車連結部材支持構
造の従来例としては、例えば図３に示すものがある。図
中50は歯車連結部材としてのブレーキドラムを示し、ブ
レーキドラム50は軸方向に延在するドラム部50a と、そ
の右方の径方向に延在する連結部50b とから成るもので
ある。ドラム部50a の左端部は図示しない固定部材に結
合され、連結部50b の内周寄端部は遊星歯車変速機構51
の構成要素であるリングギヤ52に結合される。遊星歯車
変速機構51は、リングギヤ52の他、サンギヤ53と、リン
グギヤ52およびサンギヤ53に噛合するピニオン54と、ピ
ニオン54を回転自在に支持するキャリア55等を具えて成
り、リングギヤ52の両端部は支持部材としての、軸方向
に配置した一対のベアリング（例えばスラストニードル
ベアリング）56, 57によってキャリア55の内周面に支持
される（昭和57年11月、日産自動車株式会社発行、ニッ
サンＯＤ付オートマチックトランスミッション、Ｌ４Ｎ
71Ｂ型、Ｅ４Ｎ71Ｂ型 整備要領書参照）。2. Description of the Related Art As a conventional example of a gear connecting member supporting structure of an automatic transmission having a structure in which a gear connecting member is arranged in the outer peripheral direction of the gear, there is, for example, one shown in FIG. In the figure, reference numeral 50 denotes a brake drum as a gear connecting member, and the brake drum 50 is composed of a drum portion 50a extending in the axial direction and a connecting portion 50b extending to the right of the drum portion 50a. The left end portion of the drum portion 50a is connected to a fixing member (not shown), and the inner peripheral end portion of the connecting portion 50b is a planetary gear transmission mechanism 51.
Is coupled to the ring gear 52 which is a component of the. The planetary gear speed change mechanism 51 includes a ring gear 52, a sun gear 53, a pinion 54 that meshes with the ring gear 52 and the sun gear 53, a carrier 55 that rotatably supports the pinion 54, and both ends of the ring gear 52. It is supported on the inner peripheral surface of the carrier 55 by a pair of bearings (for example, thrust needle bearings) 56 and 57 arranged in the axial direction as a supporting member (November 1982, Nissan Motor Co., Ltd., Nissan OD automatic transmission). Transmission, L4N
71B type, E4N 71B type maintenance manual).

【０００３】この遊星歯車変速機構51においては、図示
しないブレーキバンド等の作動によりドラム部50a を拘
束することにより、図示しない固定部材に結合されたブ
レーキドラム50の回転が阻止され、リングギヤ52を固定
することができる。In the planetary gear speed change mechanism 51, the rotation of the brake drum 50 connected to the fixing member (not shown) is prevented by locking the drum portion 50a by the operation of a brake band (not shown), and the ring gear 52 is fixed. can do.

【０００４】[0004]

【発明が解決しようとする課題】上記従来例において
は、ベアリング56, 57がリングギヤ52のスラスト力を直
接受ける構造になっているため、これらベアリングの径
がリングギヤ52の径と同等以上の大きな径となり、ベア
リングの低容量化による自動変速機のコンパクト化が難
しくなってしまう。In the above-mentioned conventional example, since the bearings 56, 57 are structured to directly receive the thrust force of the ring gear 52, the diameter of these bearings is as large as or larger than the diameter of the ring gear 52. Therefore, it becomes difficult to make the automatic transmission compact by reducing the bearing capacity.

【０００５】本発明は、歯車連結部材の、一対の軸方向
の支持部材により挟持される歯車寄端部を当該歯車より
も内周方向に延長して支持位置を変更することにより、
上述した問題を解決することを目的とする。According to the present invention, the gear connecting end of the gear connecting member, which is sandwiched by the pair of axial supporting members, is extended inward from the gear to change the supporting position.
The object is to solve the above-mentioned problems.

【０００６】[0006]

【課題を解決するための手段】この目的のため、本発明
の自動変速機の歯車連結部材支持構造は、遊星歯車変速
機構の歯車を連結する歯車連結部材を、当該歯車よりも
外周方向に配置して成る自動変速機において、前記歯車
連結部材の歯車寄端部を当該歯車よりも内周方向に延長
し、該端部を軸方向に配置した一対の支持部材によって
挟持するようにしたことを特徴とするものである。To this end, in a gear connecting member supporting structure for an automatic transmission according to the present invention, a gear connecting member for connecting gears of a planetary gear speed change mechanism is arranged in an outer peripheral direction of the gears. In the automatic transmission configured as described above, the gear-side end portion of the gear coupling member is extended inward of the gear, and the end portion is sandwiched by a pair of support members arranged in the axial direction. It is a feature.

【０００７】[0007]

【作用】本発明によれば、例えば前記自動変速機は、入
力軸および出力軸を同軸に具え、これらに同心に配して
入力軸側より順次第１，第２，第３サンギヤと、第１，
第２，第３リングギヤと、第１，第２，第３キャリアと
を有した第１，第２，第３遊星歯車組を設け、第１サン
ギヤを入力軸に、第３キャリアを出力軸に夫々結合し、
第１リングギヤを第１ブレーキにより固定可能とし、第
１キャリアを第２リングギヤに結合するとともに第２ブ
レーキにより固定可能とし、第２，第３サンギヤを第１
クラッチにより入力軸に結合可能とし、第２キャリアを
一方で第２クラッチにより入力軸に結合可能とし、他方
で第３リングギヤに結合するとともに第３ブレーキによ
り固定可能としたものであり、前記歯車は第１リングギ
ヤであり、前記歯車連結部材は第１ブレーキのブレーキ
ドラムである構成において、遊星歯車変速機構の歯車を
連結する歯車連結部材の、歯車寄端部を内周方向に延長
して、その延長した端部を軸方向に配置した一対の支持
部材によって挟持したから、支持部材を低容量化、小型
化して自動変速機のコンパクト化を実現することが可能
になる。According to the present invention, for example, the automatic transmission has an input shaft and an output shaft that are coaxial with each other, and is arranged concentrically with the input shaft and the output shaft so that the first, second, and third sun gears are sequentially arranged from the input shaft side. 1,
First, second, and third planetary gear sets having second and third ring gears and first, second, and third carriers are provided, and the first sun gear is an input shaft and the third carrier is an output shaft. Combined with each other,
The first ring gear can be fixed by the first brake, the first carrier can be coupled to the second ring gear and can be fixed by the second brake, and the second and third sun gears can be the first
The clutch can be connected to the input shaft, the second carrier can be connected to the input shaft by the second clutch on the one hand, and can be connected to the third ring gear on the other hand and can be fixed by the third brake. A first ring gear, wherein the gear coupling member is a brake drum of the first brake, the gear coupling member that couples the gears of the planetary gear shifting mechanism is extended at the gear end portion in the inner circumferential direction, and Since the extended end portion is sandwiched by the pair of support members arranged in the axial direction, it is possible to realize a compact automatic transmission by reducing the capacity and size of the support member.

【０００８】[0008]

【実施例】以下、本発明の実施例を図面に基づき詳細に
説明する。図１は本発明の自動変速機の歯車連結部材支
持構造の第１実施例を示す部分断面図、図２は同例を用
いた自動変速機の歯車変速機構のスケルトン図、図３は
同例を用いた自動変速機の全体構成を示す図である。ま
ず、図２により本例の自動変速機全体について説明する
と、入力軸１、出力軸２およびそれらの間に位置する中
間軸３を同軸突合わせ関係に設け、これら入出力軸間に
遊星歯車変速機構を同心に配置する。遊星歯車変速機構
は、第１遊星歯車組４、第２遊星歯車組５および第３遊
星歯車組６を具えて成り、第１遊星歯車組４は、第１サ
ンギヤ４S と、第１リングギヤ４R と、これらサンギヤ
およびリングギヤに噛合するピニオン４P と、ピニオン
４P を回転自在に支持する第１キャリア４C とより成る
単純遊星歯車組であり、同様に第２および第３遊星歯車
組５，６は夫々、第２および第３サンギヤ５S ，６
S と、第２および第３リングギヤ５R ，６R と、これら
サンギヤおよびリングギヤに噛合するピニオン５P ，６
P と、これらピニオンを回転自在に支持する第２および
第３キャリア５C ，６C とより成る単純遊星歯車組であ
る。Embodiments of the present invention will now be described in detail with reference to the drawings. 1 is a partial cross-sectional view showing a first embodiment of a gear connecting member support structure for an automatic transmission according to the present invention, FIG. 2 is a skeleton diagram of a gear transmission mechanism for an automatic transmission using the same, and FIG. 3 is the same example. It is a figure which shows the whole structure of the automatic transmission using. First, the entire automatic transmission of this example will be described with reference to FIG. 2. The input shaft 1, the output shaft 2, and the intermediate shaft 3 located between them are provided in a coaxial butting relationship, and a planetary gear transmission is provided between these input and output shafts. Arrange the mechanism concentrically. The planetary gear speed change mechanism includes a first planetary gear set 4, a second planetary gear set 5 and a third planetary gear set 6, and the first planetary gear set 4 includes a first sun gear 4 S and a first ring gear 4 A simple planetary gear set consisting of R , a pinion 4 P meshing with the sun gear and the ring gear, and a first carrier 4 C rotatably supporting the pinion 4 P , and similarly a second and a third planetary gear set 5 , 6 are second and third sun gears 5 S , 6 respectively.
S , the second and third ring gears 5 R and 6 R, and the pinions 5 P and 6 that mesh with these sun gear and ring gear.
This is a simple planetary gear set consisting of P and second and third carriers 5 C and 6 C that rotatably support these pinions.

【０００９】サンギヤ４S を入力軸１に結合するととも
に、サンギヤ５S ，６S をクラッチＣ1 により入力軸１
に結合可能にし、さらにキャリア５C をクラッチＣ2 に
より入力軸１に結合可能にする。またリングギヤ４R を
第１ブレーキ（バンドブレーキ）Ｂ1 により固定可能に
するとともに、キャリア４Cおよびリングギヤ５R を第
２ブレーキＢ2 により固定可能にし、さらにキャリア５
C およびリングギヤ６R を第３ブレーキＢ3 により固定
可能にする他、キャリア６C を出力軸２に結合する。[0009] as well as connected to the input shaft 1 to the sun gear 4 S, the input shaft sun gear 5 S, 6 S by the clutch C 1 1
Allowing binding to further the carrier 5 C to allow binding to the input shaft 1 by a clutch C 2. Further, the ring gear 4 R can be fixed by the first brake (band brake) B 1 , and the carrier 4 C and the ring gear 5 R can be fixed by the second brake B 2.
C and the ring gear 6 R can be fixed by the third brake B 3 , and the carrier 6 C is connected to the output shaft 2.

【００１０】この歯車変速機構は、前記クラッチ、ブレ
ーキ等を次表に示す組合せによって選択的に作動させる
（作動状態を○印で示す）ことにより前進第１速〜第５
速および後退（Ｒ）の変速段を得ることができる。In this gear transmission mechanism, the clutches, brakes and the like are selectively operated by the combinations shown in the following table (operating states are indicated by circles) to the forward first speed to fifth speed.
Fast and reverse (R) gears can be obtained.

【００１１】 [0011]

【００１２】次に本例の自動変速機の全体構成について
図３によって説明する。図３中１，２，３は夫々入力
軸、出力軸および中間軸を示し、これら各軸は変速機中
央部を軸方向に貫通している。入力軸１の図示左方には
トルクコンバータ７（図３にはその一部のみを表してあ
る）が配置され、入力軸１の中間部にはオイルポンプ８
が配置されている。また入力軸１の右端部近傍には、図
２のクラッチＣ1 ，Ｃ2 に相当する、クラッチ10, 11等
より成るクラチパックや、第１ブレーキ（バンドブレー
キ）Ｂ1 等が配置され、入力軸１の右端部は中間軸３を
回転自在に支持している。中間軸３の全体に亘って、図
示左方より第１遊星歯車組４、第２遊星歯車組５、第３
遊星歯車組６がその順序で配置され、それら遊星歯車組
の外周には第２および第３ブレーキＢ2 , Ｂ3 等が配置
されている。また中間軸３の右方には出力軸２が配置さ
れ、出力軸２の左端部は中間軸３を回転自在に支持して
いる。出力軸２には前記ブレーキＢ3 のピストン部や支
持壁等が配置される他、その最外周には変速機ケース９
が設けられている。なおこの自動変速機には、図示の各
油路に油を供給するコントロールバルブ12が第１ブレー
キＢ1 の外周に配置されている。Next, the overall structure of the automatic transmission of this embodiment will be described with reference to FIG. In FIG. 3, reference numerals 1, 2 and 3 denote an input shaft, an output shaft and an intermediate shaft, respectively, and these shafts penetrate the transmission central portion in the axial direction. A torque converter 7 (only part of which is shown in FIG. 3) is arranged on the left side of the input shaft 1 in the drawing, and an oil pump 8 is provided in the middle of the input shaft 1.
Are arranged. In the vicinity of the right end of the input shaft 1, a clutch pack composed of clutches 10 and 11 corresponding to the clutches C 1 and C 2 in FIG. 2 and a first brake (band brake) B 1 are arranged. The right end of 1 supports the intermediate shaft 3 rotatably. The first planetary gear set 4, the second planetary gear set 5, and the third planetary gear set 4 from the left side in the figure over the entire intermediate shaft 3.
The planetary gear sets 6 are arranged in that order, and the second and third brakes B 2 , B 3 and the like are arranged on the outer periphery of the planetary gear sets. The output shaft 2 is arranged to the right of the intermediate shaft 3, and the left end of the output shaft 2 rotatably supports the intermediate shaft 3. The output shaft 2 is provided with a piston portion of the brake B 3, a support wall, and the like, and a transmission case 9 is provided at the outermost periphery thereof.
Is provided. In this automatic transmission, a control valve 12 that supplies oil to the illustrated oil passages is arranged on the outer periphery of the first brake B 1 .

【００１３】次に図１により本例の自動変速機の歯車連
結部材支持構造について説明する。図１は本例の歯車連
結部材支持構造に関連する部分のみを表しており、他の
構成要素の記入を省略してある。図中10, 11は夫々クラ
ッチを示し、図２のクラッチＣ1 ，Ｃ2 に相当する。ク
ラッチ10は、入力軸１にスプライン嵌合されるクラッチ
ドラム13と、クラッチドラム13に結合される複数のクラ
ッチ板14と、これらクラッチ板間に対応して配置され回
転部材15に結合される複数のクラッチ板16と、油圧作動
時これらクラッチ板を図示右方向に押圧してクラッチを
締結するピストン17と、ピストン17を解放方向（図示左
方向）に付勢するばね18と、ばね18を支持するリテーナ
19とより成るものである。またクラッチ11は、クラッチ
ドラム13の内周にスプライン嵌合されるクラッチドラム
20と、クラッチドラム20に結合される複数のクラッチ板
21と、これらクラッチ板間に対応して配置され回転部材
22に結合される複数のクラッチ板23と、油圧作動時これ
らクラッチ板を図示左方向に押圧してクラッチを締結す
るピストン24と、ピストン24を解放方向（図示右方向）
に付勢するばね25と、ばね25を支持するとともに遠心油
圧キャンセル作用をなす、部材26とより成るものであ
る。Next, the gear connecting member supporting structure of the automatic transmission of this embodiment will be described with reference to FIG. FIG. 1 shows only the portion related to the gear coupling member support structure of this example, and the illustration of other components is omitted. In the figure, 10 and 11 respectively indicate clutches, which correspond to the clutches C 1 and C 2 in FIG. The clutch 10 includes a clutch drum 13 that is spline-fitted to the input shaft 1, a plurality of clutch plates 14 that are connected to the clutch drum 13, and a plurality of clutch plates that are arranged between the clutch plates and that are connected to a rotating member 15. Of the clutch plate 16, a piston 17 that presses these clutch plates to the right in the drawing when hydraulically operated to close the clutch, a spring 18 that urges the piston 17 in the releasing direction (left direction in the drawing), and a spring 18 are supported. Retainer
It consists of nineteen. The clutch 11 is a clutch drum that is spline-fitted to the inner circumference of the clutch drum 13.
20 and a plurality of clutch plates coupled to the clutch drum 20
21 and the rotating member that is arranged between the clutch plates.
A plurality of clutch plates 23 coupled to 22, a piston 24 that presses these clutch plates to the left in the drawing when hydraulically operated to close the clutch, and a direction in which the piston 24 is released (to the right in the drawing)
And a member (26) for supporting the spring (25) and for canceling the centrifugal hydraulic pressure.

【００１４】一方、上記クラッチ10, 11の外周方向に
は、入力軸支持壁27に軸受28を介して図示左端の支持部
29a を支持される、歯車連結部材としてのブレーキドラ
ム29が、連結すべき歯車（リングギヤ４R ) よりも外周
方向に配置されている。ブレーキドラム29は、支持部29
a と、軸方向に延在しブレーキバンド30をその最大径部
の外周に装着されるドラム部29b と、ドラム部29b の右
方の部分を径方向に折り曲げてリングギヤ４R よりも内
周方向に延長した連結部29c とから成り、連結部29c と
ドラム部29b とはくし歯結合部29d により連結されてお
り、回転力は伝達するが、軸と直交する方向の力 (図示
上下方向の力) は伝達しない。そして連結部29c の端部
は軸方向に配置した一対のベアリング（例えばスラスト
ニードルベアリング）31, 32によって挟持され、ベアリ
ング31, 32は夫々回転部材37、キャリア４C に支持され
る。また連結部29c とリングギヤ４R とは相互にくし歯
嵌合され、スナップリング38〜40によって固定されてい
る。On the other hand, in the outer peripheral direction of the clutches 10 and 11, a support portion at the left end in the drawing is provided on the input shaft support wall 27 via a bearing 28.
The 29a is supported, the brake drum 29 as the gear coupling members are arranged on the outer peripheral direction from the gear to be engaged (the ring gear 4 R). The brake drum 29 has a support portion 29.
a and a drum portion 29b which is mounted the brake band 30 extends axially on the outer circumference of the maximum diameter portion, the inner circumferential direction than the right ring gear 4 by bending a portion in the radial direction of R of the drum portion 29b It is composed of a connecting part 29c that is extended to the., And the connecting part 29c and the drum part 29b are connected by a comb tooth connecting part 29d.The rotational force is transmitted, but the force in the direction orthogonal to the axis (the force in the vertical direction in the figure). Does not communicate. The end of the connecting portion 29c is sandwiched by a pair of bearings (e.g., thrust needle bearing) 31, 32 arranged in the axial direction, the bearing 31, 32 respectively rotating member 37 is supported by the carrier 4 C. Further the connecting portion 29c and the ring gear 4 R fitted comb each other, are secured by a snap ring 38 to 40.

【００１５】次に本例の歯車連結部材支持構造の作用に
ついて説明する。クラッチ10は、室33に油圧を供給され
るとピストン17が図１の右方向にストロークしてクラッ
チ板14, 16間を締結し、入力軸１の回転をクラッチドラ
ム13を介して回転部材15に伝達し、回転部材15に結合し
た中間軸３を回転させる。またクラッチ11は、室35に油
圧を供給されるとピストン24が図１の左方向にストロー
クしてクラッチ板21,23間を締結し、入力軸１の回転を
クラッチドラム13, 20を介して回転部材22に伝達し、回
転部材22に結合した第２キャリア５C （図示せず）を回
転させる。またピストン24の図示右端部に結合される部
材36の穴36a を貫通する回転部材37は、第１サンギヤ４
S に結合されているため、入力軸１の回転によりサンギ
ヤ４S は常時回転する。さらに、上記クラッチ10, 11の
作動状態に拘らず、ブレーキバンド30によってリングギ
ヤ４R を固定することができる。すなわち、ブレーキド
ラム29のドラム部29b をブレーキバンド30の作動によっ
て拘束するとブレーキドラム29の回転が阻止され、ブレ
ーキドラム29の連結部29c にくし歯嵌合されたリングギ
ヤ４R が固定される。Next, the operation of the gear connecting member support structure of this embodiment will be described. In the clutch 10, when hydraulic pressure is supplied to the chamber 33, the piston 17 strokes to the right in FIG. 1 to engage between the clutch plates 14 and 16, and the rotation of the input shaft 1 is rotated by the rotating member 15 via the clutch drum 13. To rotate the intermediate shaft 3 coupled to the rotating member 15. Further, in the clutch 11, when hydraulic pressure is supplied to the chamber 35, the piston 24 strokes leftward in FIG. 1 to engage between the clutch plates 21 and 23, and the rotation of the input shaft 1 is transmitted via the clutch drums 13 and 20. The second carrier 5 C (not shown) transmitted to the rotating member 22 and coupled to the rotating member 22 is rotated. Further, the rotary member 37 penetrating the hole 36a of the member 36 coupled to the right end portion of the piston 24 in the drawing is the first sun gear 4
Since it is coupled to S , the rotation of the input shaft 1 causes the sun gear 4 S to always rotate. Further, the ring gear 4 R can be fixed by the brake band 30 regardless of the operating states of the clutches 10 and 11. That is, when the drum portion 29b of the brake drum 29 is restrained by the operation of the brake band 30 the rotation of the brake drum 29 is prevented, the ring gear 4 R which comb teeth fitted to the connecting portion 29c of the brake drum 29 is fixed.

【００１６】ところで本例においては、リングギヤ４R
をブレーキドラム29の連結部29c を介してベアリング3
1, 32により支持したため、図３の従来例に比べてベア
リングを小径化できるので、ベアリングの回転数（周
速）を大幅に低下させることができる。したがってベア
リング31, 32を低容量化、小型化して自動変速機のコン
パクト化を実現することができ、ベアリング31, 32の寿
命も大幅に向上する。またブレーキドラム29をブレーキ
バンド30によって拘束した場合に発生する、ブレーキド
ラム29の偏心による力が、くし歯結合部29d を設けるこ
とにより連結部29cに伝達されないので、ベアリング31,
32に偏心による力が加わることはなく、またリングギ
ヤ４R の噛み合いがずれることもない。By the way, in this example, the ring gear 4 R
Through the coupling 29c of the brake drum 29 to the bearing 3
Since the bearings are supported by 1, 32, the diameter of the bearing can be made smaller than that of the conventional example of FIG. 3, so that the rotational speed (peripheral speed) of the bearing can be significantly reduced. Therefore, the capacities of the bearings 31 and 32 can be reduced and downsized to realize a compact automatic transmission, and the lifespan of the bearings 31 and 32 can be significantly improved. Further, since the force due to the eccentricity of the brake drum 29 generated when the brake drum 29 is restrained by the brake band 30 is not transmitted to the connecting portion 29c by providing the comb tooth connecting portion 29d, the bearing 31,
No eccentric force is applied to 32, and the meshing of ring gear 4 R does not shift.

【００１７】[0017]

【発明の効果】かくして本発明の自動変速機の歯車連結
部材支持構造は上述の如く、歯車連結部材の、一対の軸
方向の支持部材により挟持される歯車寄端部を当該歯車
よりも内周方向に延長して支持位置を変更したから、支
持部材を低容量化、小型化して自動変速機のコンパクト
化を実現することが可能になる。As described above, according to the gear connecting member supporting structure of the automatic transmission of the present invention, the gear connecting end of the gear connecting member, which is sandwiched by the pair of axial supporting members, is located at the inner periphery of the gear. Since the support position is changed by extending the support member in the direction, it is possible to reduce the capacity and size of the support member and realize a compact automatic transmission.

【図面の簡単な説明】[Brief description of drawings]

【図１】本発明の自動変速機の歯車連結部材支持構造の
第１実施例を示す部分断面図である。FIG. 1 is a partial cross-sectional view showing a first embodiment of a gear connecting member support structure for an automatic transmission according to the present invention.

【図２】同例を用いた自動変速機の、歯車変速機構のス
ケルトン図である。FIG. 2 is a skeleton diagram of a gear transmission mechanism of the automatic transmission using the same example.

【図３】同例を用いた自動変速機の、全体構成を示す図
である。FIG. 3 is a diagram showing an overall configuration of an automatic transmission using the same example.

【図４】従来技術を説明するための図である。FIG. 4 is a diagram for explaining a conventional technique.

【符号の説明】[Explanation of symbols]

１ 入力軸 ４C キャリア ４R リングギヤ（歯車） ４S サンギヤ 29 ブレーキドラム（歯車連結部材） 29b ドラム部 29c 連結部（歯車寄端部） 29d くし歯車結合部 30 ブレーキバンド 31 ベアリング（支持部材） 32 ベアリング（支持部材）1 input shaft 4 C carrier 4 R ring gear (gear) 4 S sun gear 29 brake drum (gear connecting member) 29b drum part 29c connecting part (gear side end part) 29d comb gear connecting part 30 brake band 31 bearing (supporting member) 32 Bearing (supporting member)

Claims (2)

【特許請求の範囲】[Claims] 【請求項１】 遊星歯車変速機構の歯車を連結する歯車
連結部材を、当該歯車よりも外周方向に配置して成る自
動変速機において、 前記歯車連結部材の歯車寄端部を当該歯車よりも内周方
向に延長し、該端部を軸方向に配置した一対の支持部材
によって挟持するようにしたことを特徴とする、自動変
速機の歯車連結部材支持構造。1. An automatic transmission comprising a gear connecting member for connecting gears of a planetary gear speed change mechanism arranged in an outer peripheral direction of the gear, wherein a gear end portion of the gear connecting member is located inside the gear. A gear connecting member supporting structure for an automatic transmission, characterized in that it is extended in the circumferential direction and the end portion is sandwiched by a pair of supporting members arranged in the axial direction. 【請求項２】 前記自動変速機は、入力軸および出力軸
を同軸に具え、これらに同心に配して入力軸側より順次
第１，第２，第３サンギヤと、第１，第２，第３リング
ギヤと、第１，第２，第３キャリアとを有した第１，第
２，第３遊星歯車組を設け、第１サンギヤを入力軸に、
第３キャリアを出力軸に夫々結合し、第１リングギヤを
第１ブレーキにより固定可能とし、第１キャリアを第２
リングギヤに結合するとともに第２ブレーキにより固定
可能とし、第２，第３サンギヤを第１クラッチにより入
力軸に結合可能とし、第２キャリアを一方で第２クラッ
チにより入力軸に結合可能とし、他方で第３リングギヤ
に結合するとともに第３ブレーキにより固定可能とした
ものであり、前記歯車は第１リングギヤであり、前記歯
車連結部材は第１ブレーキのブレーキドラムであること
を特徴とする、請求項１記載の自動変速機の歯車連結部
材支持構造。2. The automatic transmission comprises an input shaft and an output shaft which are coaxial with each other, and which are arranged concentrically with each other, and are sequentially arranged from the input shaft side in order of first, second and third sun gears, first, second and second sun gears. First, second, and third planetary gear sets having a third ring gear and first, second, and third carriers are provided, and the first sun gear is used as an input shaft,
The third carrier is connected to the output shaft, respectively, the first ring gear can be fixed by the first brake, and the first carrier is connected to the second shaft.
The second gear can be connected to the input shaft by the first clutch, the second carrier can be connected to the input shaft by the second clutch, and the second carrier can be connected by the second clutch. 2. The gear according to claim 1, wherein the gear is a first ring gear, and the gear coupling member is a brake drum of the first brake, the gear being a first ring gear and a third brake. A structure for supporting a gear connecting member of the automatic transmission described.
JP3208851A 1991-07-26 1991-07-26 Gear connecting member supporting structure for automatic transmission Pending JPH0533834A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3208851A JPH0533834A (en) 1991-07-26 1991-07-26 Gear connecting member supporting structure for automatic transmission

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3208851A JPH0533834A (en) 1991-07-26 1991-07-26 Gear connecting member supporting structure for automatic transmission

Publications (1)

Publication Number Publication Date
JPH0533834A true JPH0533834A (en) 1993-02-09

Family

ID=16563164

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3208851A Pending JPH0533834A (en) 1991-07-26 1991-07-26 Gear connecting member supporting structure for automatic transmission

Country Status (1)

Country Link
JP (1) JPH0533834A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019124251A (en) * 2018-01-12 2019-07-25 ジヤトコ株式会社 Stepped transmission

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019124251A (en) * 2018-01-12 2019-07-25 ジヤトコ株式会社 Stepped transmission

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