JPH112308A - Differential gear - Google Patents

Differential gear

Info

Publication number
JPH112308A
JPH112308A JP15175597A JP15175597A JPH112308A JP H112308 A JPH112308 A JP H112308A JP 15175597 A JP15175597 A JP 15175597A JP 15175597 A JP15175597 A JP 15175597A JP H112308 A JPH112308 A JP H112308A
Authority
JP
Japan
Prior art keywords
differential
case
ball
disk
disk plate
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
JP15175597A
Other languages
Japanese (ja)
Inventor
Shuji Yamada
修司 山田
Yoshitaka Ito
嘉高 伊藤
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.)
Proterial Ltd
Original Assignee
Hitachi Metals 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 Hitachi Metals Ltd filed Critical Hitachi Metals Ltd
Priority to JP15175597A priority Critical patent/JPH112308A/en
Publication of JPH112308A publication Critical patent/JPH112308A/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
    • F16H48/00—Differential gearings
    • F16H48/12—Differential gearings without gears having orbital motion
    • F16H48/14—Differential gearings without gears having orbital motion with cams
    • F16H48/147—Differential gearings without gears having orbital motion with cams with driven cam followers or balls engaging two opposite cams

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Retarders (AREA)
  • Friction Gearing (AREA)
  • Transmission Devices (AREA)

Abstract

PROBLEM TO BE SOLVED: To easily set initial torque and easily return differential limiting performance even if the performance decreases, by setting an axial adjusting means between a differential case and a case cover. SOLUTION: A pair of disk plates 3 are arranged with facing coaxially each other in a space formed between a differential case 1 and a case cover 2 which blocks its one end, and a ball holder 4 which rotatably holds a lot of balls 5 is placed between both disk plates 3. In the axially facing surface of each disk plate 3, a groove 3b engaging to each ball 5 is provided sequentially circumferentially of each disk plate 3, and when rotational difference occurs for each disk plate 3, each ball 5 is moved along a radial long hole 4c. The differential case 1 and the case cover 2 are assembled by spiraling screws 1e and 2e, its axial position is adjusted, and then, a screw 7 is fastened not to be rotated.

Description

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

【０００１】[0001]

【発明の属する技術分野】本発明は自動車の左右または
前後駆動輪の回転差を許容する差動装置に関するもので
ある。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a differential device which allows a difference in rotation between left and right or front and rear drive wheels of an automobile.

【０００２】[0002]

【従来の技術】従来、自動車の差動装置としては、出力
軸に連結された一対のベベル歯車の間にピニオン歯車を
介在させ、ピニオン歯車のシャフトに外側から回転力が
加わると、差動時にピニオン歯車を自転させて各出力軸
の回転差を許容するようにしたものが一般的であるが、
このような構造の差動装置よりも小型で、しかも特別な
機構を追加することなく差動制限機能を有するものが、
特開平８−１７０７０５号公報として提案されている。2. Description of the Related Art Conventionally, as a differential of an automobile, a pinion gear is interposed between a pair of bevel gears connected to an output shaft, and when a rotational force is applied to the shaft of the pinion gear from the outside, a differential is generated. Generally, the pinion gear is allowed to rotate to allow a difference in rotation between the output shafts.
A device that is smaller than such a differential device and has a differential limiting function without adding a special mechanism,
It has been proposed as JP-A-8-170705.

【０００３】図４は特開平８−１７０７０５号公報に開
示する差動装置の横断面図、図５は図４でのディスクプ
レートの正面図、図６は図５での溝の拡大図、図７は図
５での溝を平面状に展開した説明図である。図４の差動
装置は、デフケース１と、デフケース１の一端を閉塞す
るケースカバー２と、互いに同軸状に対向して配置され
た一対のディスクプレート３と、各ディスクプレート３
の間に配置されたボールホルダ４と、ボールホルダ４に
転動自在に保持された多数のボール５とを備えている。
デフケース１は一端を開口した筒形をなし、その中央に
は一方のディスクプレート３を支持する軸受け１ａが設
けられている。デフケース１の周囲にはフランジ１ｂが
設けられ、フランジ１ｂにはボルト挿通用の多数の孔１
ｃが設けられている。また、デフケース１の内面にはボ
ールホルダ４を回転方向に固定するための溝（図示せ
ず）が設けられている。FIG. 4 is a cross-sectional view of a differential device disclosed in Japanese Patent Application Laid-Open No. 8-170705, FIG. 5 is a front view of a disk plate in FIG. 4, and FIG. 6 is an enlarged view of a groove in FIG. 7 is an explanatory view in which the grooves in FIG. 5 are developed in a plane. 4 includes a differential case 1, a case cover 2 for closing one end of the differential case 1, a pair of disk plates 3 coaxially opposed to each other, and each disk plate 3.
And a plurality of balls 5 rotatably held by the ball holder 4.
The differential case 1 has a cylindrical shape with one end opened, and a bearing 1a for supporting one disk plate 3 is provided at the center. A flange 1b is provided around the differential case 1, and the flange 1b has many holes 1 for bolt insertion.
c is provided. A groove (not shown) for fixing the ball holder 4 in the rotation direction is provided on the inner surface of the differential case 1.

【０００４】ケースカバー２は円盤状に形成され、その
中央には他方のディスクプレート３を支持する軸受け２
ａが設けられている。ケースカバー２の周囲にはフラン
ジ２ｂが形成され、フランジ２ｂにはボルト挿通用の多
数の孔２ｃが設けられている。即ち、ケースカバー２は
各フランジ１ｂ、２ｂを締結するボルト（図示せず）に
よってデフケース１に組付けられている。[0004] The case cover 2 is formed in a disk shape, and in the center thereof, a bearing 2 for supporting the other disk plate 3 is provided.
a is provided. A flange 2b is formed around the case cover 2, and the flange 2b is provided with a number of holes 2c for bolt insertion. That is, the case cover 2 is attached to the differential case 1 by bolts (not shown) for fastening the flanges 1b, 2b.

【０００５】各ディスクプレート３の対向面には各ボー
ル５が転動自在に係合する溝３ｂが設けられ、各溝３ｂ
は周方向に連続して形成され、各ディスクプレート３の
両端には、ドライブシャフト（図示せず）と連結するた
めの連結部３ａが設けられている。On the opposing surface of each disk plate 3, there is provided a groove 3b in which each ball 5 is rotatably engaged.
Are formed continuously in the circumferential direction, and connection portions 3a for connecting to a drive shaft (not shown) are provided at both ends of each disk plate 3.

【０００６】図５および図６において、溝３ｂは、ボー
ル５をディスクプレート３の径方向内側から外側に向か
って移動させる第１の案内区間３ｂ−１と、ボール５を
ディスクプレート３の径方向外側から内側に向かって移
動させる第２の案内区間３ｂ−２と、ボール５をディス
クプレート３の径方向所定範囲内の位置（この場合は径
方向一定位置）に保つ第３の案内区間３ｂ−３とを周方
向に連続して有している。また、一方のディスクプレー
ト３では第１の案内区間３ｂ−１内に第３の案内区間３
ｂ−３が設けられ、他方のディスクプレートでは第２の
案内区間内に第３の案内区間が設けている。これによ
り、一対のディスクプレート３を向かい合わせると、一
方（内側または外側）の反転位置が互いに重なり合った
ときは、他方の反転位置が互いにずれるようになってい
る。また、溝３ｂはディスクプレート３の回転角が９０
゜でボール５を径方向に一往復させるように形成されて
おり、これを直線状に展開すると図７のようになる。溝
３ｂは径方向の反転位置と、第３の案内区間３ｂ−３で
はボール５と溝３ｂとの間で力を伝達しないが、力を伝
達している区間ではボール５に対する接触角の大きさを
等しくして、発生するスラスト力を一定にしようとして
いる。即ち、図７において、ａ≦ａ′、ｂ≧ｂ′、ｃ≦
ｃ、，ｄ＝ｄ′の条件を満たし、任意のボール５が力の
伝達されない位置にあるときは他の何れかのボール５が
力の伝達される位置にあるように溝３ｂの全体を形成し
て、ディスクプレート３が如何なる回転角であっても常
に一定のスラスト力を発生させようとしている。In FIGS. 5 and 6, a groove 3b is provided with a first guide section 3b-1 for moving the ball 5 from the radially inner side to the outer side of the disk plate 3, and a ball 3 in the radial direction of the disk plate 3. A second guide section 3b-2 for moving from the outside toward the inside, and a third guide section 3b- for keeping the ball 5 at a position within a predetermined range in the radial direction of the disc plate 3 (in this case, a fixed position in the radial direction). 3 in the circumferential direction. Also, in one disk plate 3, the third guide section 3 is included in the first guide section 3b-1.
b-3 is provided, and on the other disk plate, a third guide section is provided within the second guide section. Thus, when the pair of disk plates 3 face each other, when one (inside or outside) inverted position overlaps with each other, the other inverted position is shifted from each other. The groove 3b has a rotation angle of 90 degrees of the disc plate 3.
゜ is formed so that the ball 5 reciprocates once in the radial direction. When the ball 5 is developed linearly, it becomes as shown in FIG. The groove 3b does not transmit a force between the ball 5 and the groove 3b in the radially reversed position and the third guide section 3b-3, but the magnitude of the contact angle with the ball 5 in the section transmitting the force. To make the generated thrust force constant. That is, in FIG. 7, a ≦ a ′, b ≧ b ′, c ≦
When the condition of c, d = d 'is satisfied and an arbitrary ball 5 is located at a position where the force is not transmitted, the entire groove 3b is formed so that any other ball 5 is located at a position where the force is transmitted. Thus, a constant thrust force is always generated regardless of the rotation angle of the disk plate 3.

【０００７】[0007]

【発明が解決しようとする課題】この特開平８−１７０
７０５号公報で開示する差動装置は、ボールと溝との係
合により各ディスクプレートの差動を達成するととも
に、その構成における機械的な特性を利用して差動制限
効果を得ることができるため、部品点数が少なく容易に
組立てることができるという利点がある。The problem to be solved by the present invention is disclosed in Japanese Patent Application Laid-Open No. 8-170.
The differential device disclosed in Japanese Patent Publication No. 705 can achieve differential of each disk plate by engagement of a ball and a groove, and can obtain a differential limiting effect by utilizing mechanical characteristics of the configuration. Therefore, there is an advantage that the number of parts is small and it can be easily assembled.

【０００８】差動制限装置がない自動車は、ブレーキを
かけて急旋回した場合に前後輪が半径の異なる円を描
き、動く距離が違うため、そこで生じる回転差を許容で
きなくなる。しかし、特開平８−１７０７０５号公報で
開示する差動装置を前後軸間に配置すれば、左右駆動軸
への配置と同じように差動制限を得ることができる。In a vehicle without a differential limiting device, when the vehicle turns sharply with the brake applied, the front and rear wheels draw circles having different radii and move at different distances. However, if the differential device disclosed in Japanese Patent Application Laid-Open No. 8-170705 is arranged between the front and rear shafts, differential limitation can be obtained in the same manner as the arrangement on the left and right drive shafts.

【０００９】差動制限装置は、駆動トルクや差動回転数
と無関係な差動制限トルク、即ちイニシャルトルクを設
定する必要がある。また差動制限装置は、長期間の使用
に伴なうディスクプレート、ボール、またはスラストワ
ッシャなどの摩耗やへたりにより、差動制限性能が低下
するおそれがあり、差動制限効果を復帰できるようにす
る必要がある。In the differential limiting device, it is necessary to set a differential limiting torque irrelevant to the driving torque and the differential rotation speed, that is, an initial torque. In addition, the differential limiting device may reduce the differential limiting performance due to wear or settling of a disk plate, a ball, or a thrust washer, etc. associated with long-term use, so that the differential limiting effect can be restored. Need to be

【００１０】本発明の課題は、特開平８−１７０７０５
号公報で開示する差動装置において、イニシャルトルク
を容易に設定でき、差動制限性能が低下したときでも容
易にその性能を復帰できる差動装置を得ることにある。An object of the present invention is to solve the problem described in Japanese Patent Application Laid-Open No. 8-170705.
It is an object of the present invention to obtain a differential device which can easily set initial torque and can easily restore the differential limiting performance even when the differential limiting performance is reduced.

【００１１】[0011]

【課題を解決するための手段】本発明者らは、イニシャ
ルトルクを容易に設定でき、更に差動制限性能が低下し
たときでも容易に復帰できる差動装置について鋭意研究
した。そして、特開平８−１７０７０５号公報で開示す
る差動装置において、各ディスクプレート、複数のボー
ル、ボールホルダ、またはスラストワッシャなどを、デ
フケースとケースカバー内に組み立てるのに、デフケー
スとケースカバー間に軸方向調整手段を設けることで達
成できるとの知見を得、本発明に想到した。Means for Solving the Problems The present inventors have intensively studied a differential device which can easily set initial torque and can easily return even when the differential limiting performance is reduced. In the differential disclosed in JP-A-8-170705, when assembling each disk plate, a plurality of balls, a ball holder, a thrust washer, and the like in the differential case and the case cover, the differential case is disposed between the differential case and the case cover. The present inventors have found that this can be achieved by providing the axial direction adjusting means, and have arrived at the present invention.

【００１２】即ち、本発明の差動装置は、軸方向一端側
を開口したデフケースと、デフケースの一端側開口部を
閉塞するケースカバーとを備え、前記デフケース内に、
互いに軸方向に対向して同軸状に配置された一対のディ
スクプレートと、各ディスクプレートの軸方向の対向面
間に配置された複数のボールと、各ボールを各ディスク
プレートの間に保持するボールホルダとを備え、前記ボ
ールホルダにはディスクプレートの径方向に延びる複数
の長孔をディスクプレートの軸方向に貫通して設けて各
長孔に各ボールを移動自在に収容し、各ディスクプレー
トの軸方向の対向面には各ボールに係合する溝をディス
クプレートの周方向に連続して設け、各溝を各ディスク
プレートに回転差が生ずると各ボールが前記長孔に沿っ
て往復移動するように形成すると共に、前記デフケース
とケースカバー間の軸方向調整手段を設けたことを特徴
とする。That is, the differential device of the present invention includes a differential case having an opening at one end in the axial direction, and a case cover for closing an opening at one end of the differential case.
A pair of disc plates coaxially arranged opposing each other in the axial direction, a plurality of balls arranged between the axially opposing surfaces of the disc plates, and a ball holding each ball between the disc plates A plurality of long holes extending in the radial direction of the disk plate are provided in the ball holder in the axial direction of the disk plate, and each ball is movably accommodated in each long hole. On the opposing surface in the axial direction, grooves engaging with the respective balls are provided continuously in the circumferential direction of the disk plate, and when a difference in rotation occurs between the respective disk plates, the respective balls reciprocate along the long holes. And an axial direction adjusting means between the differential case and the case cover is provided.

【００１４】そして、前記調整手段は、デフケースとケ
ースカバー同士を嵌合および／または螺合させると共に
廻り止めを設けていることを特徴とする。Further, the adjusting means is characterized in that the differential case and the case cover are fitted and / or screwed to each other and provided with a detent.

【００１５】[0015]

【発明の実施の形態】以下、この発明の実施の形態を図
面に基づいて説明する。 （実施の形態１）図１は、この発明の実施の形態の差動
装置の断面図である。図１の差動装置で、前述した図４
乃至図７の差動装置と同じ機能を有する部品は同符号で
示す。図１の差動装置は、特にデフケース１とケースカ
バー２間の軸方向の調整を可能とした手段を有してお
り、デフケース内径１ｄとケースカバー外径２ｄを嵌
合、デフケース１のネジ１ｅとケースカバー２のネジ２
ｅを螺合させている。更に、デフケース１とケースカバ
ー２の軸方向を調整した後、デフケース１に１２等配し
た長孔１ｆからケースカバー２に設けたネジ孔２ｆにネ
ジ７を植設して廻り止めをしている。 （実施の形態２）図２は、この発明の別の実施の形態の
差動装置の断面図である。図２の差動装置で、前述した
図３乃至図６の差動装置と同じ機能を有する部品は同符
号で示す。図２の差動装置は、特にデフケース１とケー
スカバー２間の軸方向の調整を可能とした手段を有して
おり、デフケース内径１ｄとケースカバー外径２ｄを嵌
合させると共にナット６を締め付けてデフケース１とケ
ースカバー２の軸方向を調整した後、デフケース１に１
２等配に植設したネジ７をナット６の溝６ｂに突出させ
廻り止めをしている。Embodiments of the present invention will be described below with reference to the drawings. (First Embodiment) FIG. 1 is a sectional view of a differential device according to an embodiment of the present invention. In the differential device of FIG.
Components having the same functions as those of the differential device of FIGS. The differential device shown in FIG. 1 particularly has means for enabling axial adjustment between the differential case 1 and the case cover 2. The differential case inner diameter 1 d and the case cover outer diameter 2 d are fitted, and the differential case 1 screw 1 e And screw 2 of case cover 2
e is screwed. Further, after adjusting the axial directions of the differential case 1 and the case cover 2, the screws 7 are implanted from the long holes 1f arranged in the differential case 1 into the screw holes 2f provided in the case cover 2 to stop the rotation. . (Embodiment 2) FIG. 2 is a sectional view of a differential device according to another embodiment of the present invention. In the differential device of FIG. 2, components having the same functions as those of the differential devices of FIGS. 3 to 6 described above are denoted by the same reference numerals. The differential device shown in FIG. 2 particularly has means for enabling axial adjustment between the differential case 1 and the case cover 2. The differential case inner diameter 1 d and the case cover outer diameter 2 d are fitted and the nut 6 is tightened. After adjusting the axial direction of the differential case 1 and the case cover 2 by
Screws 7 arranged at equal intervals are projected into the grooves 6b of the nut 6 to prevent rotation.

【００１７】図３は、図２の差動装置をセンターデフと
して配置した状態を示す要部断面図である。図３で、エ
ンジン（図示せず）からの駆動力（線図で示す）が変速
装置を経てデフケース１に伝達され、デフケース１全体
が軸心回りに回転するようになっている。そして、デフ
ケース１が回転すると、デフケース１と一体にボールホ
ルダ４が回転し、この回転力は各ボール５を介して各デ
ィスクプレート３の溝３ｂに伝達されるとともに、ディ
スクプレート３に連結された前車軸へ伝達するドライブ
シャフト１１、および後車軸へ伝達するドライブシャフ
ト１２に伝達される。FIG. 3 is a cross-sectional view of a main part showing a state where the differential shown in FIG. 2 is arranged as a center differential. In FIG. 3, a driving force (shown in a diagram) from an engine (not shown) is transmitted to a differential case 1 via a transmission, and the entire differential case 1 rotates around an axis. When the differential case 1 rotates, the ball holder 4 rotates integrally with the differential case 1, and this rotational force is transmitted to the groove 3 b of each disk plate 3 via each ball 5 and connected to the disk plate 3. It is transmitted to the drive shaft 11 transmitting to the front axle and to the drive shaft 12 transmitting to the rear axle.

【００１８】ここで、前後輪に回転差が発生した場合で
も、回転の速い側から遅い側にトルクが伝達される。ま
た、発進時などに重心が後方に移動して、前輪が空転ぎ
みになっても、接地している後輪にトルクが伝達され
る。このような前後輪どちらかが空転しそうな状況で
は、差動装置が直結状態となり、前後軸に設定したトル
クが配分されるので走行不能とはならず安定して走行す
ることができる。Here, even when a difference in rotation occurs between the front and rear wheels, torque is transmitted from the side with the fastest rotation to the side with the slowest rotation. Further, even when the center of gravity moves rearward at the time of starting or the like and the front wheels are almost idle, torque is transmitted to the rear wheels that are in contact with the ground. In a situation in which either of the front and rear wheels is likely to spin, the differential device is in a directly connected state, and the torque set to the front and rear shafts is distributed.

【００１９】イニシャルトルクを変更するには、止めネ
ジ７を緩めてナット６を微少量と緩めたり締め付けたり
して、デフケース１とケースカバー２間の軸方向を調整
した後、再度止めネジ７を締め付けることで達成でき
る。更に、デフケース１とケースカバー２の外部から調
整する構造にすることもできるので、車軸に組み立て後
に差動制限効果の設定や変更が可能である。また、長期
間の使用に伴なってディスクプレート、ボール、または
スラストワッシャなどの摩耗やへたりによって、差動制
限性能が低下しても、容易にその性能を復帰させること
ができる。To change the initial torque, the set screw 7 is loosened, the nut 6 is loosened or tightened to a small amount, and the axial direction between the differential case 1 and the case cover 2 is adjusted. This can be achieved by tightening. Further, since the structure can be adjusted from the outside of the differential case 1 and the case cover 2, it is possible to set or change the differential limiting effect after assembling to the axle. Further, even if the differential limiting performance is reduced due to wear or set of the disc plate, the ball, the thrust washer or the like with the long-term use, the performance can be easily restored.

【００２０】[0020]

【発明の効果】以上説明したように本発明の差動装置
は、特開平８−１７０７０５号公報で開示する差動装置
において、デフケースとケースカバー間の軸方向調整手
段として、デフケースとケースカバー同士を嵌合させる
と共にナットで締め付け、更に廻り止め用の止めネジを
設けているので、以下の優れた効果を奏する。 （１）駆動トルクや差動回転数と無関係な差動制限トル
ク、即ちイニシャルトルクを容易に設定できる。 （２）長期間の使用に伴う部品の摩耗やへたりによる差
動制限性能の低下を容易に復帰できる。 （３）搭載した後に差動制限効果の設定や変更が可能で
ある。As described above, the differential device according to the present invention is different from the differential device disclosed in Japanese Patent Application Laid-Open No. Hei 8-170705 in that the differential case and the case cover serve as axial direction adjusting means between the differential case and the case cover. Are fitted together, tightened with a nut, and provided with a set screw for stopping rotation. (1) It is possible to easily set a differential limiting torque irrelevant to a driving torque and a differential rotation speed, that is, an initial torque. (2) A decrease in differential limiting performance due to abrasion or settling of parts due to long-term use can be easily restored. (3) The differential limiting effect can be set or changed after mounting.

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

【図１】実施の形態の差動装置の断面図である。FIG. 1 is a sectional view of a differential device according to an embodiment.

【図２】別の実施の形態の差動装置の断面図である。FIG. 2 is a sectional view of a differential device according to another embodiment.

【図３】図２の差動装置をセンターデフとして配置した
状態を示す要部断面図である。FIG. 3 is a cross-sectional view of a main part showing a state where the differential shown in FIG. 2 is arranged as a center differential.

【図４】特開平８−１７０７０５号公報に開示する差動
装置の横断面図である。FIG. 4 is a cross-sectional view of the differential device disclosed in Japanese Patent Application Laid-Open No. 8-170705.

【図５】図４でのディスクプレートの正面図である。FIG. 5 is a front view of the disk plate in FIG. 4;

【図６】図５での溝の拡大図である。FIG. 6 is an enlarged view of a groove in FIG. 5;

【図７】図５での溝を平面状に展開した説明図である。FIG. 7 is an explanatory diagram in which the grooves in FIG. 5 are developed in a planar shape.

【符号の説明】[Explanation of symbols]

１：デフケース、２：ケースカバー、３：ディスクプレ
ート、３ｂ：溝、３ｂ−１：第１の案内区間、３ｂ−
２：第２の案内区間、３ｂ−３：第３の案内区間、４：
ボールホルダ、４ｃ：長孔、５：ボール、６：ナット、
７：止めネジ、１１：ドライブシャフト、１２：ドライ
ブシャフト。1: differential case, 2: case cover, 3: disk plate, 3b: groove, 3b-1: first guide section, 3b-
2: second guidance section, 3b-3: third guidance section, 4:
Ball holder, 4c: long hole, 5: ball, 6: nut,
7: set screw, 11: drive shaft, 12: drive shaft.

Claims (2)

【特許請求の範囲】[Claims] 【請求項１】 軸方向一端側を開口したデフケースと、
デフケースの一端側開口部を閉塞するケースカバーとを
備え、前記デフケース内に、互いに軸方向に対向して同
軸状に配置された一対のディスクプレートと、各ディス
クプレートの軸方向の対向面間に配置された複数のボー
ルと、各ボールを各ディスクプレートの間に保持するボ
ールホルダとを備え、前記ボールホルダにはディスクプ
レートの径方向に延びる複数の長孔をディスクプレート
の軸方向に貫通して設けて各長孔に各ボールを移動自在
に収容し、各ディスクプレートの軸方向の対向面には各
ボールに係合する溝をディスクプレートの周方向に連続
して設け、各溝を各ディスクプレートに回転差が生ずる
と各ボールが前記長孔に沿って往復移動するように形成
すると共に、前記デフケースとケースカバー間の軸方向
調整手段を設けたことを特徴とする差動装置。1. A differential case having an axially open one end,
A case cover for closing one end side opening of the differential case, and a pair of disk plates arranged coaxially in the differential case so as to be axially opposed to each other, and between the axially opposed surfaces of the respective disk plates. A plurality of balls arranged, and a ball holder for holding each ball between the disk plates, wherein the ball holder penetrates a plurality of elongated holes extending in a radial direction of the disk plate in an axial direction of the disk plate. Each of the slots is movably accommodated in each of the long holes, and grooves for engaging with each of the balls are continuously provided in a circumferential direction of the disk plate on an axially facing surface of each of the disk plates. Each ball is formed so as to reciprocate along the elongated hole when a rotation difference occurs in the disk plate, and an axial direction adjusting means between the differential case and the case cover is provided. Differential apparatus according to claim and. 【請求項２】 前記調整手段は、デフケースとケースカ
バー同士を嵌合および／または螺合させると共に廻り止
めを設けていることを特徴とする請求項１に記載の差動
装置。2. The differential device according to claim 1, wherein the adjusting unit fits and / or screws the differential case and the case cover together and has a rotation stopper.
JP15175597A 1997-06-10 1997-06-10 Differential gear Pending JPH112308A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15175597A JPH112308A (en) 1997-06-10 1997-06-10 Differential gear

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15175597A JPH112308A (en) 1997-06-10 1997-06-10 Differential gear

Publications (1)

Publication Number Publication Date
JPH112308A true JPH112308A (en) 1999-01-06

Family

ID=15525594

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15175597A Pending JPH112308A (en) 1997-06-10 1997-06-10 Differential gear

Country Status (1)

Country Link
JP (1) JPH112308A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4676523A (en) * 1985-09-26 1987-06-30 Rogers Ralph R Suspension system for a trailer or the like
CN103016664A (en) * 2011-09-20 2013-04-03 谢夫勒科技两合公司 Axial adjustment unit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4676523A (en) * 1985-09-26 1987-06-30 Rogers Ralph R Suspension system for a trailer or the like
CN103016664A (en) * 2011-09-20 2013-04-03 谢夫勒科技两合公司 Axial adjustment unit

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