JP2004232717A - Clutch device - Google Patents

Clutch device Download PDF

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Publication number
JP2004232717A
JP2004232717A JP2003021440A JP2003021440A JP2004232717A JP 2004232717 A JP2004232717 A JP 2004232717A JP 2003021440 A JP2003021440 A JP 2003021440A JP 2003021440 A JP2003021440 A JP 2003021440A JP 2004232717 A JP2004232717 A JP 2004232717A
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JP
Japan
Prior art keywords
alignment
plate
plates
pair
plate clutch
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
JP2003021440A
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Japanese (ja)
Inventor
Sunao Mogami
直 最上
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.)
GKN Driveline Japan Ltd
Original Assignee
Tochigi Fuji Sangyo KK
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Application filed by Tochigi Fuji Sangyo KK filed Critical Tochigi Fuji Sangyo KK
Priority to JP2003021440A priority Critical patent/JP2004232717A/en
Publication of JP2004232717A publication Critical patent/JP2004232717A/en
Pending legal-status Critical Current

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  • Mechanical Operated Clutches (AREA)
  • General Details Of Gearings (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a multiplate clutch device allowing easily assembling a multiplate clutch by preparing plate members to be aligned as an assembly with use of a simple alignment member. <P>SOLUTION: A multiplate clutch device has a plurality of pairs of plates 6A and 6B arranged alternatively. The plates 6A and 6B are engaged movably on axis and rotate together with each of a pair of rotation members rotating differentially. In at least one of the pair, a group of plates 6A, an arrangement groove 6D or an arrangement hole 6E is formed in each engagement part 6c. The plates are aligned by an arrangement stick member 10 inserted into the arrangement grooves 6D or holes 6E, thereby preparing the plate clutch 6 as an assembly. Though assembly of the plates to a casing and the like is troublesome, it is thereby possible to previously align a number of plates 6A and so on by using a simple structure of arrangement member, the stick member 10, thus improving the efficiency of assembly work. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

【0001】
【発明の属する技術分野】
本発明は、差動回転する一対の回転部材のそれぞれと回転を共にし、軸動可能に嵌合された対のプレートが交互に配列された多板クラッチ装置に関する。
【0002】
【従来の技術】
この種の多板クラッチ装置は、一方の回転部材から他方の回転部材にトルクを伝達する際に、締結力を加減して摺接しながら徐々に大きさを変えてトルクを伝達できることから、駆動抵抗に応じた適切なトルク配分が可能な車両用の差動制限装置等に多用されている。ピニオンとこれに噛合する一対のサイドギヤ等から構成される差動歯車からなる差動機構に多板クラッチを組み合わせて差動制限機能を付与したものが典型的な車両用差動制限装置として使用されている(例えば下記特許文献1参照)。
【0003】
【特許文献1】
特開昭52−124625号公報(公報第2頁第5欄)
【0004】
前記特許文献1に開示された差動制限装置について図4を用いて簡単に説明する。ケーシングからの駆動力が、ピニオン軸15から該ピニオン軸15に軸支されたピニオンギヤ16を介して、該ピニオンギヤ16に傘歯噛合する左右一対のサイドギヤ13、14に差動配分されて伝達される。これら一対のサイドギヤ13、14の背面側とケーシング内側面との間にはプレッシャプレート(リング)25、26を介して多板クラッチ24、24が配設される。多板クラッチ24におけるインナプレート群23はサイドギヤ13、14のボス外周のスリット27に回転を共にして軸動のみ自在に嵌合され、アウタプレート群22はケーシングの内周のスリット28に回転を共にして軸動のみ自在に嵌合されて構成されるものである。
【0005】
このような構成の差動制限装置によって、通常の直進走行時にはエンジンからの駆動力によりケーシングからの所定の駆動力を受けてピニオンギヤ16と噛合する左右の各サイドギヤ13、14に均等にその駆動力が伝達される。その際、左右の駆動輪の走行抵抗がほぼ同じであり、ピニオンギヤ16は非回転状態にて噛合反力にて各サイドギヤ13、14を離反させ、プレッシャプレート25、26を介して多板クラッチ24、24とケーシング内側面との間を一体化させて、強固な駆動力を得る。また、車両が泥濘地等の悪路に遭遇して片輪空転等により過剰な差動作用が発生しようとした場合には、ピニオンギヤ16とサイドギヤとの間に噛合反力により、サイドギヤ13、14を離反させて多板クラッチ24、24に差動制限力を発生させて、空転車輪側にも駆動力が伝達され、悪路での脱出性能を向上させることができる。
【0006】
【発明が解決しようとする課題】
このような多板クラッチを構成すべく交互に配列されたインナプレート23群およびアウタープレート22群は、それぞれサイドギヤ13、14のボス外周のスリット27およびケーシングの内周のスリット28にそれぞれ回転を共にして軸動のみ自在に嵌合されるものであるため、各プレートにおける嵌合突起をサイドギヤやプレッシャプレートのスリットに整合させつつ、1枚ずつ嵌合して組み立てなければならず、手間を要して面倒な組立作業を必要としていた。
【0007】
そこで本発明では、上記従来の多板クラッチ装置における組立作業の課題を解決して、簡素な整列部材の使用により整列すべきプレート部材を予め組立体として簡便に多板クラッチを組み立てることを可能にした多板クラッチ装置を提供することを目的とする。
【0008】
【課題を解決するための手段】
そこで本発明は、差動回転する一対の回転部材のそれぞれと回転を共にし、軸動可能に嵌合された対のプレートが交互に配列された多板クラッチ装置において、前記対の少なくとも一方のプレート群に整列溝または整列孔を設けて、これら整列溝または整列孔に挿入した整列棒状体にて整列させて多板クラッチを予め組立体とすることを特徴とする。また本発明は、差動歯車からなる差動機構の両側に配設された多板クラッチにおける前記対の少なくとも一方のプレート群の各整列溝または整列孔に挿入した1つの整列棒状体にて整列させて両側の多板クラッチを予め組立体とすることを特徴とする。また本発明は、前記整列溝または整列孔が突起形状の嵌合部に形成されたことを特徴とする。また本発明は、前記対の少なくとも一方のプレート群と整列されるべき差動機構における構成部材も共に前記整列棒状体にて整列することを特徴とするもので、これらを課題解決のための手段とするものである。
【0009】
【実施の形態】
以下本発明の多板クラッチ装置の実施の形態を図面に基づいて詳細に説明する。図1および図2は本発明の多板クラッチ装置の第1実施の形態を示すもので、図1(A)は一方のプレート群が整列された状態を示す要部断面図、図1(B)は一方のプレートの嵌合部近傍の要部正面図、図1(C)は一方のプレートの全体正面図、図2は整列棒状体を含まない断面での多板クラッチを含む装置の組立状態を示す全体断面図である。本発明の基本的な構成は、図1に示すように、差動回転する一対の回転部材のそれぞれと回転を共にし、軸動可能に嵌合された対のプレートが交互に配列された多板クラッチ装置において、前記対の少なくとも一方のプレート6A群の各嵌合部6Cに整列溝6Dまたは整列孔6Eを設けて、これら整列溝6Dまたは整列孔6Eに挿入した整列棒状体10にて整列させて多板クラッチ6を予め組立体とすることを特徴とするものである。
【0010】
本発明の多板クラッチ装置によって組み立てられる1例を差動制限装置について以下に詳述する。図2は差動制限装置の組立状態を示す分解断面図で、ケーシング状の第1デフケース1Aと、差動機構とともに多板クラッチ6および7が予め組立体とされるところの蓋状の第2デフケース1Bとが締結ボルト等により一体に締結されて第1回転部材であるデフケース1が構成される。回転軸に直交するピニオン軸2に軸支された図示省略のピニオンに、軸方向の両側から傘歯噛合する一対の第1サイドギヤ4、第2サイドギヤ5がデフケース1の回転軸と同軸で回転自在に配設される。これらのサイドギヤ4、5間には詳述はしないが、皿ばね等による予圧付与部材が配設される。
【0011】
サイドギヤ4、5の背面とデフケース1の内側面との間にはそれぞれ第1プレッシャリング8、第2プレッシャリング9を介して第1多板クラッチ6、第2多板クラッチ7が配設される。第1多板クラッチ6は、第1デフケース1Aの内周の嵌合溝1Cに外周の嵌合部(突起)6C(図1(B))が回転を共にして軸動自在にのみ嵌合される一方のプレート(アウタプレート)6A群と、第1サイドギヤ4のボス外周の嵌合溝4Aに内周の嵌合部(突起)が回転を共にして軸動自在にのみ嵌合される他方のプレート(インナプレート)6B群とが交互に配列されて構成される。各サイドギヤ4、5と多板クラッチ6、7との間にそれぞれ配設される第1プレッシャリング8および第2プレッシャリング9は、前記第1デフケース1Aの内周の嵌合溝1Cに外周の嵌合部(突起)8A、9Aが回転を共にして軸動自在にのみ嵌合される。
【0012】
以上のような差動制限装置において、多板クラッチをデフケースやサイドギヤの嵌合溝に整合させて組み立てるには、本発明による整合棒状体により簡便かつ迅速に行うことができる。多板クラッチのアウタプレートを構成する一方のプレート6A群を例にして説明すると、インナプレートを構成する他方のプレート6Bと交互に配列されるべき一方のプレート6Aの外周には複数(図示の例では4個)の嵌合部6Cが(図1(B))突設される。これらの嵌合部6Cはデフケースの嵌合溝1Cの断面形状に整合するもので、図示の例では円弧状を呈しているが、デフケースの嵌合溝1Cに合わせて角形等の適宜の形状が採用され得る。また、デフケースの嵌合部が突条であればプレート6Aの嵌合部6は溝形状とされてもよい。前記嵌合部6Cには、さらに図1(B)に示すような整列溝6Dや、図1(C)に示すような整列孔6Eが形成される。
【0013】
少なくとも、交互に配列されたプレート6A、6Bの中、一方のプレート6A群の各整列溝6Dや整列孔6Eに剛性の整列棒状体10を挿入して、これらのプレート6A群を予め組立体としておくことにより、デフケース1の嵌合溝1Cへの組付けがきわめて簡便となる。図1(A)の例では、同様にして嵌合突起に整列孔8E、9Eが穿設された一対のプレッシャリング8、9および多板クラッチ7のプレート7A群も整列棒状体10により整列されて予め組立体とされるものである。図1(A)の例では、組立後に、これらの整列された部品とともにそのまま整列棒状体10が組み込まれてもよい。なお、一対のプレッシャリング8、9は、図2に示すように、対向面に形成されたカム面8C、9Cがピニオン軸2の両側に当接されることにより、ピニオン軸2との間に生じた相対回転により軸方向外側に軸動して多板クラッチ6、7の締結動作を行う。
【0014】
図3は本発明の多板クラッチ装置の第2実施の形態を示すもので、予め組立体とされた全体断面図である。本実施の形態のものは、整列棒状体として前記実施の形態の剛性のものに代えて、ワイヤ11等のやや柔軟性のあるものを用いて各部品を整列して予め組立体とするものである。詳述はしないが、各多板クラッチ6、7を構成する他方のプレート6B、7B(インナプレート)群についても、内周側に形成された嵌合部(嵌合突起等)に整列溝や整列孔を形成して適宜の整列棒状体を用いて整列させてもよい。
【0015】
また、本実施の形態では、各多板クラッチ6、7およびプレッシャリング8、9を対応する各サイドギヤ4、5に組み付けたものを、さらに第2デフケース1Bに形成した整合孔1Eを利用して第2デフケース1Bにも整合させて予め組立体とするものである。このようにして予め組立体とされた部品を、図2に示すように、第1デフケース1Aに組み付けることになるが、長尺のワイヤ等の整列棒状体11を第1デフケース1Aの嵌合溝1Cに通した後に、該デフケース1Aの側面から外方に貫通した孔から前記予め組立体とされた部品を引き寄せることにより、多板クラッチ6、7およびプレッシャリング8、9における各嵌合突起等の嵌合部が、第1デフケース1Aの嵌合溝1Cに自動的に整合されて組み付けられることになる。
【0016】
以上本発明の実施例を述べてきたが、本発明の趣旨の範囲内にて、差動回転する一対の回転部材の入出力先(前後あるいは左右の駆動輪間の差動制限装置に適用される他、適宜の差動制限を必要とする部位に適用し得る)、多板クラッチの形状、形式(乾式の他、粘性流体を介在させたもの等)および配設部位(プレッシャリングとの配置関係等は実施の形態のものに限定されない)、嵌合部形状を含むプレートの形状、プレートの嵌合部(整列溝や整列孔の形成については、必ずしも実施の形態のような嵌合部に限らず、インナープレートより外周側に位置するアウタープレートの嵌合部間の周部に形成することも本発明の範疇である)における整列溝または整列孔の形状(円弧状、方形、楕円等、嵌合部が溝形状であればその溝底にさらに整合溝を形成することもできる)、プレートと回転部材との嵌合形態(スプライン嵌合、ラグ嵌合その他軸動のみ自在で回転を共にする嵌合形態)、整列棒状体の形状(棒状、針金状、撚線状、紐状等)、材質、整列棒状体への各部品の組付け順序、差動機構の形式(差動歯車を構成するピニオンおよびサイドギヤの形状、形式、噛合関係、予圧付与部材の組込み形態等適宜の増幅機構が採用され得る)等は適宜選定できる。
【0017】
【発明の効果】
以上詳細に説明したように本発明によれば、差動回転する一対の回転部材のそれぞれと回転を共にし、軸動可能に嵌合された対のプレートが交互に配列された多板クラッチ装置において、前記対の少なくとも一方のプレート群に整列溝または整列孔を設けて、これら整列溝または整列孔に挿入した整列棒状体にて整列させて多板クラッチを予め組立体とすることにより、棒状体という単純で簡潔な構成の整列部材により、ケーシング等への組付けが面倒な多数のプレート群等を予め整列させて容易に組み立てておくことができて、組立作業の効率が向上する。
【0018】
また、差動歯車からなる差動機構の両側に配設された多板クラッチにおける前記対の少なくとも一方のプレート群の各整列溝または整列孔に挿入した1つの整列棒状体にて整列させて両側の多板クラッチを予め組立体とする場合は、一対の多板クラッチを有するものにも適用できて有用であり、これらの両方の多板クラッチを纏めて予め組立体とすることができ、さらに組立性能が向上する。さらに、前記整列溝または整列孔が突起形状の嵌合部に形成された場合は、突起形状を利用して他の構成部材を設けることなく容易に整合溝や整合孔を形成することが可能となる。
【0019】
さらにまた、前記対の少なくとも一方のプレート群と整列されるべき差動機構における構成部材も共に前記整列棒状体にて整列する場合は、多板クラッチやプレッシャリングを含めて差動機構全体を予め組立体としてケーシングに着脱することが可能となり、組立てのみならず、組立て後の保守・点検も容易となる。かくして、簡素な整列部材の使用により整列すべきプレート部材を予め組立体として簡便に多板クラッチを組み立てることを可能にした多板クラッチ装置が提供される。
【図面の簡単な説明】
【図1】本発明の多板クラッチ装置の第1実施の形態を示すもので、図1(A)は一方のプレート群が整列された状態を示す要部断面図、図1(B)は一方のプレートの嵌合部近傍の要部正面図、図1(C)は一方のプレートの全体正面図である。
【図2】同、整列棒状体を含まない断面での多板クラッチを含む装置の組立状態を示す全体断面図である。
【図3】本発明の多板クラッチ装置の第2実施の形態を示すもので、予め組立体とされた全体断面図である。
【図4】従来の多板クラッチ装置を組み込んだ差動制限装置の全体断面図である。
【符号の説明】
1 第1回転部材(デフケース等)
1A 第1デフケース
1B 第2デフケース
1C 嵌合溝
1E 整合孔
2 ピニオン軸
4 第2回転部材(第1サイドギヤ等)
4A 嵌合溝
5 第2回転部材(第2サイドギヤ等)
5A 嵌合溝
6 第1多板クラッチ
6A 一方のプレート
6B 他方のプレート
6C 嵌合部(ラグ突起等)
6D 整列溝
6E 整列孔
7 第2多板クラッチ
7A 一方のプレート
7B 他方のプレート
8 第1プレッシャリング
8A 嵌合部(突起等)
8C カム面
9 第2プレッシャリング
9A 嵌合部(突起等)
9C カム面
10 整列棒状体
11 整列棒状体(ワイヤ等)
12 差動機構
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a multi-plate clutch device that rotates with each of a pair of rotating members that rotate differentially and in which a pair of plates that are fitted to be able to move axially are alternately arranged.
[0002]
[Prior art]
This type of multi-plate clutch device can transmit torque from one rotating member to the other rotating member by gradually changing the magnitude while adjusting the fastening force and slidingly contacting, thereby reducing the driving resistance. It is often used in a differential limiting device for a vehicle or the like that can distribute an appropriate torque according to the vehicle. A differential mechanism comprising a pinion and a differential gear including a pair of side gears meshing with the pinion and a multi-plate clutch combined with a differential limiting function is used as a typical vehicle differential limiting device. (For example, see Patent Document 1 below).
[0003]
[Patent Document 1]
JP-A-52-124625 (Publication, page 2, column 5)
[0004]
The differential limiting device disclosed in Patent Document 1 will be briefly described with reference to FIG. The driving force from the casing is differentially distributed and transmitted from the pinion shaft 15 to a pair of left and right side gears 13 and 14 that mesh with the pinion gear 16 via a pinion gear 16 that is supported by the pinion shaft 15. . Multi-plate clutches 24, 24 are disposed between the rear surfaces of the pair of side gears 13, 14 and the inner surface of the casing via pressure plates (rings) 25, 26. The inner plate group 23 in the multi-plate clutch 24 is rotatably fitted to the slits 27 on the outer periphery of the bosses of the side gears 13 and 14 so that only the axial movement is freely fitted. The outer plate group 22 rotates in the slit 28 on the inner periphery of the casing. Together, only the axial movement is freely fitted.
[0005]
With the differential limiting device having such a configuration, during normal straight running, the left and right side gears 13 and 14 meshing with the pinion gear 16 receive a predetermined driving force from the casing by the driving force from the engine and uniformly apply the driving force to the left and right side gears 13 and 14. Is transmitted. At this time, the running resistance of the left and right drive wheels is almost the same, and the pinion gear 16 separates the side gears 13 and 14 by the meshing reaction force in the non-rotation state, and the multi-plate clutch 24 via the pressure plates 25 and 26. , 24 and the inner surface of the casing are integrated to obtain a strong driving force. When the vehicle encounters an unfavorable road such as a muddy ground and tries to generate an excessive differential action due to one-wheel idling or the like, the side gears 13 and 14 are caused by a meshing reaction force between the pinion gear 16 and the side gear. And the differential limiting force is generated in the multiple disc clutches 24, 24, the driving force is also transmitted to the idle wheel side, and the escape performance on a rough road can be improved.
[0006]
[Problems to be solved by the invention]
The group of inner plates 23 and the group of outer plates 22 alternately arranged to constitute such a multi-plate clutch rotate in the slit 27 on the outer periphery of the boss of the side gears 13 and 14 and the slit 28 on the inner periphery of the casing, respectively. Since only the axial movement can be freely fitted, the fitting protrusions on each plate must be fitted and assembled one by one while aligning the fitting projections with the slits of the side gear and pressure plate, which requires time and effort. And required cumbersome assembly work.
[0007]
Therefore, the present invention solves the problem of the assembling work in the above-described conventional multi-plate clutch device, and makes it possible to easily assemble a multi-plate clutch by using a simple alignment member to previously set a plate member to be aligned as an assembly. It is an object of the present invention to provide a multi-plate clutch device.
[0008]
[Means for Solving the Problems]
Accordingly, the present invention provides a multi-plate clutch device in which a pair of plates rotatably engaged with each other rotates together with each of a pair of rotating members that perform differential rotation, and at least one of the pair is arranged. It is characterized in that the plate group is provided with an alignment groove or an alignment hole, and the multi-plate clutch is pre-assembled by aligning with an alignment rod inserted into the alignment groove or the alignment hole. Further, the present invention provides a multi-plate clutch arranged on both sides of a differential mechanism comprising a differential gear, wherein the alignment is performed by one alignment rod inserted into each alignment groove or alignment hole of at least one plate group of the pair. Then, the multi-plate clutches on both sides are pre-assembled. Further, the present invention is characterized in that the alignment groove or the alignment hole is formed in a protrusion-shaped fitting portion. Further, the present invention is characterized in that components of a differential mechanism to be aligned with at least one plate group of the pair are also aligned by the alignment rod-shaped body, and these are arranged to solve the problem. It is assumed that.
[0009]
Embodiment
Hereinafter, embodiments of a multiple disc clutch device of the present invention will be described in detail with reference to the drawings. 1 and 2 show a first embodiment of a multiple disc clutch device according to the present invention. FIG. 1 (A) is a sectional view of an essential part showing a state where one plate group is aligned, and FIG. ) Is a front view of a main part near a fitting portion of one plate, FIG. 1C is an overall front view of one plate, and FIG. 2 is an assembly of a device including a multi-plate clutch in a cross section not including an alignment rod. It is an overall sectional view showing a state. As shown in FIG. 1, the basic configuration of the present invention is a multi-layer structure in which a pair of plates that rotate together with a pair of rotating members that rotate differentially and that are axially movably fitted are alternately arranged. In the plate clutch device, an alignment groove 6D or an alignment hole 6E is provided in each fitting portion 6C of at least one plate 6A group of the pair, and alignment is performed by the alignment rod 10 inserted in the alignment groove 6D or the alignment hole 6E. Thus, the multi-plate clutch 6 is previously assembled into an assembly.
[0010]
An example assembled by the multi-plate clutch device of the present invention will be described in detail below for a differential limiting device. FIG. 2 is an exploded cross-sectional view showing an assembled state of the differential limiting device. A first differential case 1A in the form of a casing and a second lid-like form in which the multi-plate clutches 6 and 7 are preassembled together with the differential mechanism. The differential case 1B is integrally fastened by a fastening bolt or the like to form the differential case 1 as the first rotating member. A pair of first side gears 4 and second side gears 5 meshing with bevel teeth from both sides in the axial direction are rotatably coaxial with the rotation shaft of the differential case 1 on a pinion (not shown) supported by a pinion shaft 2 orthogonal to the rotation shaft. It is arranged in. Although not described in detail, a preload applying member such as a disc spring is provided between the side gears 4 and 5.
[0011]
A first multi-plate clutch 6 and a second multi-plate clutch 7 are disposed between the rear surfaces of the side gears 4 and 5 and the inner surface of the differential case 1 via a first pressure ring 8 and a second pressure ring 9, respectively. . In the first multi-plate clutch 6, an outer fitting portion (projection) 6 </ b> C (FIG. 1B) rotates only in the inner fitting groove 1 </ b> C of the first differential case 1 </ b> A so as to be axially movable. One of the plates (outer plates) 6A and the fitting portion (projection) on the inner periphery is fitted only in the fitting groove 4A on the outer periphery of the boss of the first side gear 4 so as to be axially movable together with the rotation. The other plate (inner plate) 6B group is arranged alternately. The first pressure ring 8 and the second pressure ring 9 disposed between the side gears 4 and 5 and the multi-plate clutches 6 and 7, respectively, are provided in the fitting groove 1C on the inner circumference of the first differential case 1A. The fitting portions (projections) 8A and 9A are fitted together so as to be rotatable together with rotation.
[0012]
In the differential limiting device as described above, the assembly of the multi-plate clutch in alignment with the fitting groove of the differential case or the side gear can be easily and quickly performed by the alignment rod according to the present invention. A description will be given by taking, as an example, one group of plates 6A constituting the outer plate of the multi-plate clutch. The outer periphery of one plate 6A which is to be alternately arranged with the other plate 6B constituting the inner plate (the illustrated example) (Four) (see FIG. 1B). These fitting portions 6C match the cross-sectional shape of the fitting groove 1C of the differential case, and have an arc shape in the illustrated example. However, an appropriate shape such as a square shape is fitted to the fitting groove 1C of the differential case. Can be adopted. If the fitting portion of the differential case is a ridge, the fitting portion 6 of the plate 6A may be formed in a groove shape. An alignment groove 6D as shown in FIG. 1B and an alignment hole 6E as shown in FIG. 1C are further formed in the fitting portion 6C.
[0013]
At least, among the alternately arranged plates 6A and 6B, the rigid alignment rods 10 are inserted into the alignment grooves 6D and the alignment holes 6E of one of the plates 6A, and these plates 6A are previously assembled as an assembly. By doing so, the assembly of the differential case 1 to the fitting groove 1C becomes extremely simple. In the example of FIG. 1A, a pair of pressure rings 8, 9 having alignment holes 8E, 9E formed in the fitting protrusions and a group of plates 7A of the multi-plate clutch 7 are similarly aligned by the alignment rods 10. In advance as an assembly. In the example of FIG. 1 (A), after assembly, the alignment rod 10 may be incorporated as it is with these aligned components. As shown in FIG. 2, the pair of pressure rings 8 and 9 are arranged between the pinion shaft 2 by cam surfaces 8 </ b> C and 9 </ b> C formed on opposing surfaces contacting both sides of the pinion shaft 2. By the generated relative rotation, the shaft is moved outward in the axial direction to perform the fastening operation of the multi-plate clutches 6 and 7.
[0014]
FIG. 3 shows a second embodiment of the multiple disc clutch device according to the present invention, and is an overall sectional view preliminarily assembled. In the present embodiment, instead of the rigid rod of the above-described embodiment, an alignment rod-shaped body is used to arrange each part using a slightly flexible material such as a wire 11 to form an assembly in advance. is there. Although not described in detail, the other plates 6B and 7B (inner plates) constituting the multi-plate clutches 6 and 7 also have alignment grooves and fitting grooves (fitting protrusions and the like) formed on the inner peripheral side. An alignment hole may be formed and aligned using an appropriate alignment rod.
[0015]
Further, in the present embodiment, the multi-plate clutches 6 and 7 and the pressure rings 8 and 9 assembled to the corresponding side gears 4 and 5 are further utilized by using the alignment holes 1E formed in the second differential case 1B. The second differential case 1B is also aligned to be assembled in advance. As shown in FIG. 2, the components assembled in advance in this way are assembled into the first differential case 1A. The alignment rods 11 such as long wires are fitted into the fitting grooves of the first differential case 1A. 1C, by pulling the pre-assembled parts from the holes penetrating outward from the side surface of the differential case 1A, the fitting protrusions and the like on the multi-plate clutches 6, 7 and the pressure rings 8, 9 are drawn. Is automatically aligned with and fitted to the fitting groove 1C of the first differential case 1A.
[0016]
The embodiments of the present invention have been described above. However, within the scope of the present invention, the input / output destinations of a pair of differentially rotating rotary members (applied to a differential limiting device between front and rear or left and right drive wheels). In addition to the above, it can be applied to a part that requires an appropriate differential restriction), the shape and type of a multi-plate clutch (dry type, viscous fluid interposed, etc.) and disposition part (disposition with pressure ring) The relationship and the like are not limited to those in the embodiment), the shape of the plate including the shape of the fitting portion, the fitting portion of the plate (the formation of the alignment groove and the alignment hole is not necessarily limited to the fitting portion as in the embodiment). The shape of the alignment groove or the alignment hole in the peripheral portion between the fitting portions of the outer plate located on the outer peripheral side with respect to the inner plate is also not limited thereto. If the fitting is groove-shaped, An alignment groove can also be formed), a fitting form of the plate and the rotating member (a spline fitting, a lug fitting, a fitting form in which only axial movement is free and rotation is performed), and a shape of an alignment rod (rod, Wire, twisted wire, string, etc.), material, order of assembling each component to the alignment rod, type of differential mechanism (shape, type, meshing relationship, preload, pinion and side gears constituting differential gear) An appropriate amplifying mechanism such as a mounting form of the applying member can be adopted), and the like can be appropriately selected.
[0017]
【The invention's effect】
As described above in detail, according to the present invention, a multi-plate clutch device which rotates together with each of a pair of differentially rotating rotating members and in which a pair of plates fitted so as to be axially movable are alternately arranged. In the above, at least one plate group of the pair is provided with an alignment groove or an alignment hole, and the multi-plate clutch is pre-assembled by aligning with an alignment rod inserted into the alignment groove or the alignment hole, thereby forming a rod-shaped clutch. By using an alignment member having a simple and simple structure, such as a body, a large number of plate groups and the like that are difficult to assemble to a casing or the like can be easily aligned and assembled in advance, thereby improving the efficiency of the assembly operation.
[0018]
Further, in a multi-plate clutch arranged on both sides of a differential mechanism composed of a differential gear, the multi-plate clutch is aligned with one alignment rod inserted into each alignment groove or alignment hole of at least one plate group of the pair. When the multi-plate clutch is pre-assembled, it is useful and applicable to the one having a pair of multi-plate clutches, and both of these multi-plate clutches can be assembled into an assembly in advance. The assembling performance is improved. Further, when the alignment groove or the alignment hole is formed in the projection-shaped fitting portion, it is possible to easily form the alignment groove or the alignment hole without providing another component using the projection shape. Become.
[0019]
Furthermore, when the components of the differential mechanism to be aligned with at least one plate group of the pair are also aligned by the alignment rod, the entire differential mechanism including the multi-plate clutch and the pressure ring is preliminarily prepared. It becomes possible to attach and detach to the casing as an assembly, so that not only assembling but also maintenance and inspection after assembling become easy. Thus, there is provided a multi-plate clutch device in which a plate member to be aligned can be easily assembled in advance and a multi-plate clutch can be easily assembled by using a simple alignment member.
[Brief description of the drawings]
1A and 1B show a first embodiment of a multiple disc clutch device according to the present invention, in which FIG. 1A is a sectional view of a main part showing a state in which one plate group is aligned, and FIG. FIG. 1C is an overall front view of one plate, showing a main part near the fitting portion of one plate.
FIG. 2 is an overall sectional view showing an assembled state of a device including a multi-plate clutch in a section not including an alignment rod-like body.
FIG. 3 is a sectional view of a multi-plate clutch device according to a second embodiment of the present invention, which is a pre-assembled assembly.
FIG. 4 is an overall sectional view of a differential limiting device incorporating a conventional multi-plate clutch device.
[Explanation of symbols]
1 First rotating member (differential case etc.)
1A First differential case 1B Second differential case 1C Fitting groove 1E Alignment hole 2 Pinion shaft 4 Second rotating member (first side gear, etc.)
4A fitting groove 5 second rotating member (second side gear, etc.)
5A Fitting groove 6 First multi-plate clutch 6A One plate 6B The other plate 6C Fitting portion (lug protrusion, etc.)
6D Alignment groove 6E Alignment hole 7 Second multi-plate clutch 7A One plate 7B The other plate 8 First pressure ring 8A Fitting part (projection, etc.)
8C Cam surface 9 Second pressure ring 9A Fitting part (projection, etc.)
9C Cam surface 10 Aligning rod 11 Aligning rod (wire etc.)
12 Differential mechanism

Claims (4)

差動回転する一対の回転部材のそれぞれと回転を共にし、軸動可能に嵌合された対のプレートが交互に配列された多板クラッチ装置において、前記対の少なくとも一方のプレート群に整列溝または整列孔を設けて、これら整列溝または整列孔に挿入した整列棒状体にて整列させて多板クラッチを予め組立体とすることを特徴とする多板クラッチ装置。In a multi-plate clutch device in which a pair of plates rotatably engaged with each of a pair of rotating members that perform differential rotation are alternately arranged and axially fitted, an alignment groove is formed in at least one plate group of the pair. Alternatively, a multi-plate clutch device is provided in which an alignment hole is provided, and the multi-plate clutch is pre-assembled by aligning with an alignment rod inserted into the alignment groove or the alignment hole. 差動歯車からなる差動機構の両側に配設された多板クラッチにおける前記対の少なくとも一方のプレート群の各整列溝または整列孔に挿入した1つの整列棒状体にて整列させて両側の多板クラッチを予め組立体とすることを特徴とする請求項1に記載の多板クラッチ装置。In a multiple disc clutch arranged on both sides of a differential mechanism comprising a differential gear, the multiple discs on both sides are aligned by one alignment rod inserted into each alignment groove or alignment hole of at least one plate group of the pair. The multi-plate clutch device according to claim 1, wherein the plate clutch is pre-assembled. 前記整列溝または整列孔が突起形状の嵌合部に形成されたことを特徴とする請求項1または2に記載の多板クラッチ装置。The multi-plate clutch device according to claim 1, wherein the alignment groove or the alignment hole is formed in a protrusion-shaped fitting portion. 前記対の少なくとも一方のプレート群と整列されるべき差動機構における構成部材も共に前記整列棒状体にて整列することを特徴とする請求項2または3に記載の多板クラッチ装置。4. The multi-plate clutch device according to claim 2, wherein components of the differential mechanism to be aligned with at least one plate group of the pair are also aligned by the alignment rod.
JP2003021440A 2003-01-30 2003-01-30 Clutch device Pending JP2004232717A (en)

Priority Applications (1)

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Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009014100A (en) * 2007-07-04 2009-01-22 Jtekt Corp Drive power transmitting device and its assembling method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009014100A (en) * 2007-07-04 2009-01-22 Jtekt Corp Drive power transmitting device and its assembling method

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