JPH0514654U - Two-way differential clutch overload input prevention structure - Google Patents

Two-way differential clutch overload input prevention structure

Info

Publication number
JPH0514654U
JPH0514654U JP7120391U JP7120391U JPH0514654U JP H0514654 U JPH0514654 U JP H0514654U JP 7120391 U JP7120391 U JP 7120391U JP 7120391 U JP7120391 U JP 7120391U JP H0514654 U JPH0514654 U JP H0514654U
Authority
JP
Japan
Prior art keywords
rotary shaft
differential clutch
input gear
gear
way differential
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.)
Granted
Application number
JP7120391U
Other languages
Japanese (ja)
Other versions
JP2541639Y2 (en
Inventor
功一郎 野倉
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.)
Aichi Machine Industry Co Ltd
Original Assignee
Aichi Machine Industry 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 Aichi Machine Industry Co Ltd filed Critical Aichi Machine Industry Co Ltd
Priority to JP7120391U priority Critical patent/JP2541639Y2/en
Publication of JPH0514654U publication Critical patent/JPH0514654U/en
Application granted granted Critical
Publication of JP2541639Y2 publication Critical patent/JP2541639Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)
  • Retarders (AREA)

Abstract

(57)【要約】 【目的】 過負荷入力時における2方向差動クラッチの
破損を防止することを目的とする。 【構成】 インプットギヤの回転が速い時のみスプラグ
を介しインプットギヤの回転を回転軸に伝える2方向差
動クラッチの前記回転軸1に係入穴1bを形成し、この
係入穴1bに係合するチェックボール13と、チェック
ボール13を押圧するコイルスプリング12を内装した
盲穴9aを内周面に有するアウトプットギヤ9を前記回
転軸1の外周に設けて構成する。
(57) [Summary] [Purpose] The objective is to prevent damage to the two-way differential clutch during overload input. [Structure] An engaging hole 1b is formed in the rotary shaft 1 of a two-way differential clutch that transmits the rotation of the input gear to the rotary shaft via a sprag only when the input gear rotates fast, and engages with the lock hole 1b. An output gear 9 having a check hole 13 and a blind hole 9a in which a coil spring 12 for pressing the check ball 13 is provided on the inner peripheral surface is provided on the outer periphery of the rotary shaft 1.

Description

【考案の詳細な説明】[Detailed description of the device]

【0001】[0001]

【産業上の利用分野】[Industrial applications]

この考案は、2方向差動クラッチにおける過負荷入力を防止する構造に関する ものである。 The present invention relates to a structure for preventing overload input in a two-way differential clutch.

【0002】[0002]

【従来の技術及びその課題】[Prior art and its problems]

従来、自動車等の動力伝達径路内に用いられる2方向差動クラッチは図3に縦 断面図で、又、図4に図3のA−A線半断面図で示すような構造となっており、 軸受を介し回転可能に設けられた回転軸1の外周には、隙間をおいて回転可能に 軸受を介しインプットギヤ2が配設されており、回転軸1の外周面と前記インプ ットギヤ2の内周面間には所定間隔で複数のスプラグ8,8,8が介装されてお り、この各スプラグ8,8,8は前記インプットギヤ2の内周面にピン7を介し 固設された外側保持部材6のポケット部と、前記回転軸1の外周に摺動移動可能 に配設された内側保持部材4のポケット間に介装されたものであり、内側保持部 材4はサブギヤ3に皿バネ5を介し圧着されており、このサブギヤ3と前記イン プットギヤ2は、例えばエンジン側のギヤに噛み合わされており、エンジンの回 転力がインプットギヤ2とサブギヤ3に入力されるものとなっている。ところで 、サブギヤ3の歯数はインプットギヤ2の歯数よりも多くされており、そのため 、サブギヤ3の回転はインプットギヤ2の回転よりも遅れるように設定されてお り、図5に示すように、サブギヤ3に圧接されている内側保持部材4はインプッ トギヤ2の回転に対して差速を生じ、内側保持部材4のストッパー10が外側保 持部材6のポケットの端部に当接するまで図示左方向に内側保持部材4は相対回 転し、これに伴い各スプラグ8が傾動するように構成されており、この場合、回 転軸1の回転の方がインプットギヤ2の回転よりも速ければ、スプラグ8は起立 して回転軸1は空転することとなるが、回転軸1の回転が遅くインプットギヤ2 の回転の方が速い場合には、スプラグ8の傾動によりインプットギヤ2の内周面 と回転軸1の外周面が連結されて、インプットギヤ2の回転が回転軸1に伝えら れる。即ち、この2方向差動クラッチは正逆回転に係わらず、インプットギヤ2 の回転の方が回転軸1の回転よりも速い場合にのみインプットギヤ2の回転力を 回転軸1に伝える構造となっている。 このような回転軸1の外周にはスプライン嵌合によりアウトプットギヤ9が外 嵌されており、このアウトプットギヤ9には例えば車輪側のギヤが噛み合わされ て回転力が車輪側へ伝えられる構造となっている。 Conventionally, a two-way differential clutch used in a power transmission path of an automobile or the like has a structure shown in a longitudinal sectional view in FIG. 3 and a half sectional view taken along the line AA in FIG. An input gear 2 is rotatably provided on the outer periphery of a rotary shaft 1 that is rotatably provided via a bearing, and the input gear 2 is rotatably provided on the outer periphery of the rotary shaft 1 and the input gear 2. A plurality of sprags 8, 8 and 8 are provided at predetermined intervals between the inner peripheral surfaces, and each of the sprags 8, 8 and 8 is fixed to the inner peripheral surface of the input gear 2 via a pin 7. The inner holding member 4 is interposed between the pocket portion of the outer holding member 6 and the pocket of the inner holding member 4 slidably arranged on the outer circumference of the rotary shaft 1. The disc gear 3 and the input gear 2 are pressure-bonded to each other via a disc spring 5. For example, meshed with the engine side of the gear, which is assumed to rotational force of the engine is inputted into the input gear 2 and the subsidiary gear 3. By the way, the number of teeth of the sub gear 3 is larger than the number of teeth of the input gear 2. Therefore, the rotation of the sub gear 3 is set to be delayed from the rotation of the input gear 2, and as shown in FIG. , The inner holding member 4 pressed against the sub gear 3 causes a differential speed with respect to the rotation of the input gear 2, and the stopper 10 of the inner holding member 4 contacts the end of the pocket of the outer holding member 6 in the left side of the drawing. The inner holding member 4 rotates relative to each other in the direction, and each sprag 8 tilts accordingly. In this case, if the rotation shaft 1 rotates faster than the input gear 2 rotates, The sprag 8 stands up and the rotary shaft 1 idles. However, when the rotary shaft 1 rotates slowly and the input gear 2 rotates faster, the sprag 8 tilts to cause the inner peripheral surface of the input gear 2 to rotate. Times The outer peripheral surface of the rolling shaft 1 is connected, and the rotation of the input gear 2 is transmitted to the rotating shaft 1. That is, this two-way differential clutch has a structure in which the rotational force of the input gear 2 is transmitted to the rotary shaft 1 only when the rotation of the input gear 2 is faster than the rotation of the rotary shaft 1 regardless of the forward and reverse rotation. ing. An output gear 9 is externally fitted to the outer periphery of such a rotary shaft 1 by spline fitting. For example, a gear on the wheel side is meshed with the output gear 9 to transmit a rotational force to the wheel side. Has become.

【0003】 このような従来構造においては、回転軸1に対しアウトプットギヤ9は固定さ れているため、過負荷が入力された時に、2方向差動クラッチの内部が破損する ことがあるという問題点があった。In such a conventional structure, since the output gear 9 is fixed to the rotary shaft 1, the inside of the two-way differential clutch may be damaged when an overload is input. There was a problem.

【0004】[0004]

【課題を解決するための手段】[Means for Solving the Problems]

本考案は上記従来の問題点に鑑み案出したものであって、過負荷入力による破 損を良好に防止し得る構造を提供せんことを目的とし、その要旨は、回転軸の外 周面と、該回転軸の外周に回転可能に配設されたインプットギヤの内周面間に複 数のスプラグを介装させ、前記インプットギヤが前記回転軸よりも速く回転する 時のみ前記スプラグを介しインプットギヤの回転を前記回転軸に伝える2方向差 動クラッチにおいて、前記回転軸の外周に所定間隔で複数の係入穴を形成すると ともに、該係入穴に係合するチェックボールと、該チェックボールを押圧するコ イルスプリングを内装した盲穴を内周面に所定間隔で複数形成してなるアウトプ ットギヤを前記回転軸の外周に緩嵌したことである。 The present invention was devised in view of the above-mentioned conventional problems, and an object thereof is to provide a structure capable of favorably preventing damage due to an overload input. , A plurality of sprags are interposed between the inner peripheral surfaces of an input gear rotatably arranged on the outer periphery of the rotary shaft, and the input is performed via the sprag only when the input gear rotates faster than the rotary shaft. In a two-way differential clutch that transmits the rotation of a gear to the rotating shaft, a plurality of engaging holes are formed at predetermined intervals on the outer periphery of the rotating shaft, and a check ball that engages with the engaging hole, and a check ball. That is, an output gear having a plurality of blind holes in which coil springs for pressing are formed on the inner peripheral surface at predetermined intervals is loosely fitted to the outer periphery of the rotary shaft.

【0005】[0005]

【作用】[Action]

インプットギヤからスプラグを介し回転軸に回転が伝えられ、通常は係入穴内 にチェックボールが押圧状に係入されており、回転軸の回転がアウトプットギヤ に伝えられて、アウトプットギヤは回転軸とともに回転し外部に回転力を伝える 。しかし、過負荷が入力された場合には回転軸の係入穴からチェックボールが抜 脱してアウトプットギヤに対し回転軸が空回り状態となり、過負荷はアウトプッ トギヤに伝わらず2方向差動クラッチの破損が良好に防止される。 Rotation is transmitted from the input gear to the rotary shaft via the sprag, and a check ball is normally pressed into the engagement hole.The rotation of the rotary shaft is transmitted to the output gear, and the output gear rotates. It rotates with the shaft and transmits rotational force to the outside. However, when an overload is input, the check ball is pulled out from the engaging hole of the rotary shaft and the rotary shaft idles against the output gear, and the overload is not transmitted to the output gear and the two-way differential clutch Good damage prevention.

【0006】[0006]

【実施例】【Example】

以下、本考案の実施例を図面に基づいて説明する。 図1は前記図3で示した2方向差動クラッチの回転軸の右端部の断面拡大構成 図である。 図に示すように、回転軸1の右端部は小径に形成した小径部1aとなっており 、この小径部1aの外周には図2の断面図で示すように、所定間隔で4個のV字 状の断面をなす係入穴1b,1b,1b,1bが形成されている。 Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an enlarged sectional view of the right end portion of the rotary shaft of the two-way differential clutch shown in FIG. As shown in the drawing, the right end of the rotary shaft 1 is a small diameter portion 1a formed to have a small diameter, and the outer circumference of the small diameter portion 1a is provided with four Vs at predetermined intervals as shown in the sectional view of FIG. Engagement holes 1b, 1b, 1b, 1b having a V-shaped cross section are formed.

【0007】 この小径部1aの外にはアウトプットギヤ9が回転可能に緩嵌されており、ア ウトプットギヤ9の内周面には前記係入穴1bに対応する位置に4個の盲穴9a ,9a,9a,9aが形成されており、この各盲穴9a内にはコイルスプリング 12が内装され、コイルスプリング12の内端側にはチェックボール13が設け られており、このチェックボール13が前記コイルスプリング12の押圧力によ り前記各係入穴1b,1b,1b,1b内に係合された状態となっている。 従って、インプットギヤ2が速く回転してスプラグ8を介し回転軸1にインプ ットギヤ2の回転力が伝えられた場合に、通常の負荷状態では回転軸1の回転は チェックボール13が係入穴1b内に係合されているためアウトプットギヤ9に 良好に伝えられて、アウトプットギヤ9を介し外部に回転力が伝えられる。An output gear 9 is rotatably loosely fitted on the outside of the small diameter portion 1a, and four blind holes are provided on the inner peripheral surface of the output gear 9 at positions corresponding to the engaging holes 1b. 9a, 9a, 9a, 9a are formed. A coil spring 12 is provided in each blind hole 9a, and a check ball 13 is provided on the inner end side of the coil spring 12. Is pressed into the engaging holes 1b, 1b, 1b, 1b by the pressing force of the coil spring 12. Therefore, when the input gear 2 rotates rapidly and the rotational force of the input gear 2 is transmitted to the rotary shaft 1 through the sprag 8, the check ball 13 is rotated by the check ball 13 under the normal load condition. Since it is engaged in the inside, it is satisfactorily transmitted to the output gear 9, and the rotational force is transmitted to the outside via the output gear 9.

【0008】 しかし、2方向差動クラッチに過負荷が加わった場合には、前記チェックボー ル13が係入穴1bから抜脱してアウトプットギヤ9に対し回転軸1が空回り状 態となり、過大なトルクがアウトプットギヤ9に伝わることがなく、過負荷時に 2方向差動クラッチの破損が良好に防がれる。However, when an overload is applied to the two-way differential clutch, the check ball 13 is pulled out from the engagement hole 1b and the rotary shaft 1 becomes idle with respect to the output gear 9, resulting in an excessive load. Torque is not transmitted to the output gear 9, and damage to the two-way differential clutch can be prevented satisfactorily at the time of overload.

【0009】[0009]

【考案の効果】[Effect of the device]

本考案は、回転軸の外周面と、該回転軸の外周に回転可能に配設されたインプ ットギヤの内周面間に複数のスプラグを介装させ、前記インプットギヤが前記回 転軸よりも速く回転する時のみ前記スプラグを介しインプットギヤの回転を前記 回転軸に伝える2方向差動クラッチにおいて、前記回転軸の外周に所定間隔で複 数の係入穴を形成するとともに、該係入穴に係合するチェックボールと、該チェ ックボールを押圧するコイルスプリングを内装した盲穴を内周面に所定間隔で複 数形成してなるアウトプットギヤを前記回転軸の外周に緩嵌したことにより、過 負荷入力時に回転軸の係入穴からチェックボールが抜脱してアウトプットギヤに 対し回転軸が空回り状態となり、過負荷がアウトプットギヤ側に伝わることがな く、過負荷時における2方向差動クラッチの破損が良好に防止される。 According to the present invention, a plurality of sprags are provided between the outer peripheral surface of a rotary shaft and the inner peripheral surface of an input gear rotatably arranged on the outer peripheral surface of the rotary shaft, and the input gear is more than the rotary shaft. In a two-way differential clutch that transmits the rotation of the input gear to the rotary shaft through the sprag only when rotating at high speed, a plurality of engagement holes are formed at predetermined intervals on the outer circumference of the rotation shaft, and the engagement holes are formed. By loosely fitting the output gear consisting of a plurality of check balls that engage with the check ball and a plurality of blind holes with coil springs that press the check ball inside the inner peripheral surface at predetermined intervals, , When the overload is input, the check ball is pulled out from the engaging hole of the rotary shaft and the rotary shaft does not idle around the output gear, and the overload is not transmitted to the output gear side. Kicking two-way differential clutch failure is effectively prevented.

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

【図1】回転軸とアウトプットギヤの取付構造の断面拡
大構成図である。
FIG. 1 is an enlarged cross-sectional configuration diagram of a mounting structure of a rotary shaft and an output gear.

【図2】図1のB−B線断面構成図である。FIG. 2 is a sectional view taken along the line BB of FIG.

【図3】従来の2方向差動クラッチの全体縦断面図であ
る。
FIG. 3 is an overall vertical sectional view of a conventional two-way differential clutch.

【図4】図2のA−A線半断面図である。FIG. 4 is a half sectional view taken along the line AA of FIG.

【図5】2方向差動クラッチの作動説明図である。FIG. 5 is an operation explanatory view of a two-way differential clutch.

【符号の説明】[Explanation of symbols]

1 回転軸 1a 小径部 1b 係入穴 2 インプットギヤ 3 サブギヤ 4 内側保持部材 6 外側保持部材 8 スプラグ 9 アウトプットギヤ 9a 盲穴 12 コイルスプリング 13 チェックボール 1 Rotating shaft 1a Small diameter part 1b Engagement hole 2 Input gear 3 Sub gear 4 Inner holding member 6 Outer holding member 8 Sprag 9 Output gear 9a Blind hole 12 Coil spring 13 Check ball

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項1】 回転軸の外周面と、該回転軸の外周に回
転可能に配設されたインプットギヤの内周面間に複数の
スプラグを介装させ、前記インプットギヤが前記回転軸
よりも速く回転する時のみ前記スプラグを介しインプッ
トギヤの回転を前記回転軸に伝える2方向差動クラッチ
において、前記回転軸の外周に所定間隔で複数の係入穴
を形成するとともに、該係入穴に係合するチェックボー
ルと、 該チェックボールを押圧するコイルスプリングを内装し
た盲穴を内周面に所定間隔で複数形成してなるアウトプ
ットギヤを前記回転軸の外周に緩嵌したことを特徴とす
るとする2方向差動クラッチの過負荷入力防止構造。
1. A plurality of sprags are interposed between an outer peripheral surface of a rotating shaft and an inner peripheral surface of an input gear rotatably arranged on the outer periphery of the rotating shaft, the input gear being more than the rotating shaft. In a two-way differential clutch that transmits the rotation of the input gear to the rotary shaft via the sprags only when rotating rapidly, a plurality of engagement holes are formed at predetermined intervals on the outer circumference of the rotation shaft, and the engagement holes are formed in the engagement holes. A check ball to be engaged with the output ball and a blind hole having a coil spring for pressing the check ball are formed at a predetermined interval on the inner peripheral surface, and an output gear is loosely fitted to the outer periphery of the rotary shaft. A structure for preventing overload input of a two-way differential clutch.
JP7120391U 1991-08-08 1991-08-08 Overload input prevention structure for two-way differential clutch Expired - Lifetime JP2541639Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7120391U JP2541639Y2 (en) 1991-08-08 1991-08-08 Overload input prevention structure for two-way differential clutch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7120391U JP2541639Y2 (en) 1991-08-08 1991-08-08 Overload input prevention structure for two-way differential clutch

Publications (2)

Publication Number Publication Date
JPH0514654U true JPH0514654U (en) 1993-02-26
JP2541639Y2 JP2541639Y2 (en) 1997-07-16

Family

ID=13453887

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7120391U Expired - Lifetime JP2541639Y2 (en) 1991-08-08 1991-08-08 Overload input prevention structure for two-way differential clutch

Country Status (1)

Country Link
JP (1) JP2541639Y2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006004146A1 (en) * 2004-07-07 2006-01-12 Ntn Corporation Rotation transmission device
KR100736553B1 (en) * 2005-12-28 2007-07-06 동부일렉트로닉스 주식회사 Power deliverring axis of standard mechanical interface apparatus
KR100902554B1 (en) * 2008-12-24 2009-06-11 주식회사삼영이앤티 Overload protection apparatus
TWI458615B (en) * 2011-09-16 2014-11-01 Hon Hai Prec Ind Co Ltd Flexspline protecting structure and robot arm assembly using the same
CN113977624A (en) * 2020-07-27 2022-01-28 Oppo广东移动通信有限公司 Steering engine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101530607B1 (en) * 2015-01-19 2015-06-24 대일강업주식회사 Computer table equipped with means for safely elevating monitor

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006004146A1 (en) * 2004-07-07 2006-01-12 Ntn Corporation Rotation transmission device
KR100736553B1 (en) * 2005-12-28 2007-07-06 동부일렉트로닉스 주식회사 Power deliverring axis of standard mechanical interface apparatus
KR100902554B1 (en) * 2008-12-24 2009-06-11 주식회사삼영이앤티 Overload protection apparatus
TWI458615B (en) * 2011-09-16 2014-11-01 Hon Hai Prec Ind Co Ltd Flexspline protecting structure and robot arm assembly using the same
CN113977624A (en) * 2020-07-27 2022-01-28 Oppo广东移动通信有限公司 Steering engine

Also Published As

Publication number Publication date
JP2541639Y2 (en) 1997-07-16

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