JPH0289824A - One-way clutch - Google Patents

One-way clutch

Info

Publication number
JPH0289824A
JPH0289824A JP63238859A JP23885988A JPH0289824A JP H0289824 A JPH0289824 A JP H0289824A JP 63238859 A JP63238859 A JP 63238859A JP 23885988 A JP23885988 A JP 23885988A JP H0289824 A JPH0289824 A JP H0289824A
Authority
JP
Japan
Prior art keywords
cam
annular wall
flange
outer peripheral
plate part
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
JP63238859A
Other languages
Japanese (ja)
Inventor
Hirotaka Shibata
柴田 広高
Yoshiro Ouchi
大内 美朗
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.)
Yamaha Motor Co Ltd
Original Assignee
Yamaha 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 Yamaha Motor Co Ltd filed Critical Yamaha Motor Co Ltd
Priority to JP63238859A priority Critical patent/JPH0289824A/en
Publication of JPH0289824A publication Critical patent/JPH0289824A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D41/00Freewheels or freewheel clutches
    • F16D41/06Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface
    • F16D41/064Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by rolling and having a circular cross-section, e.g. balls

Abstract

PURPOSE:To reduce weight without increasing size by a method wherein an annular wall is formed on the outer peripheral edge of a plate part, and a cam part provided at its forward edge with a flange and with which a rolling body is connected is formed. CONSTITUTION:A circumferentially extending annular wall 8 is integrally formed on the outer peripheral edge of a plate part 4 through throttle processing, three arcuate parts 8a... and three cam parts 8b are alternately formed at equal intervals on the outer peripheral edge of the plate part. A radially protruded flange 11 is formed integrally to the forward edges of the cam parts 8b. Since, when a rotary member 3 is driven in the direction of an arrow mark A, a roller 12 is nipped between the cam part 8b and the outer peripheral surface of the rotary member 3, the members are intercoupled. In this case, since a load exerted on the cam part 8b is dispersed toward the annular wall 8 and the cam part 8b is reinforced with the flange 11, weight can be decreased through decrease of the thickness of the plate part 4.4.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は例えば自動二輪車の始動装置や、各種産業機械
などに使用される一方向クラッチに関するものである。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a one-way clutch used in, for example, starting devices for motorcycles and various industrial machines.

〔従来の技術〕[Conventional technology]

一方向クラッチは、トルクを一定方向へのみ伝達する機
能を有するクラッチであり、この種のクラッチとして特
開昭60−26822号公報に開示されたものがある。
A one-way clutch is a clutch that has the function of transmitting torque only in a fixed direction, and one such type of clutch is disclosed in Japanese Patent Laid-Open No. 60-26822.

これは、クラ7チ本体を強度が要求されるプレート部と
、要求されないハウジング部とに分離し、ハウジング部
に転動体を保持する凹部を設け、プレート部に転動体が
係接する複数個の舌片部を屈曲形成したものである。
This separates the clutch body into a plate part that requires strength and a housing part that does not require strength, provides a concave part in the housing part to hold the rolling elements, and has a plurality of tongues in which the rolling elements engage with the plate part. One part is bent.

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

しかし、このような構造では、高トルクを伝達する場合
舌片部で形成されるカムの強度を得るためにプレート部
および舌片部を比較的に厚くする必要がある。このため
、プレート部の重量が嵩んでしまい、一方向クラッチを
軽量化するのが困難であった。
However, in such a structure, when transmitting high torque, it is necessary to make the plate part and the tongue part relatively thick in order to obtain the strength of the cam formed by the tongue part. This increases the weight of the plate portion, making it difficult to reduce the weight of the one-way clutch.

そこで、これを解決するために、プレート部に設けた環
状壁によってカムを形成し、この環状壁の外周縁に環状
の補強フランジを設けることが考えられるが、このよう
にするとフランジでブレト部の外径が大きくなりクラッ
チが大型化する不都合が起きる。本発明はこのような事
情に鑑みなされたもので、大型化することなく軽量化が
はかれる一方向クラッチを提供するものである。
Therefore, in order to solve this problem, it is conceivable to form a cam with an annular wall provided on the plate part, and provide an annular reinforcing flange on the outer periphery of this annular wall. The problem arises that the outer diameter becomes larger and the clutch becomes larger. The present invention was made in view of these circumstances, and it is an object of the present invention to provide a one-way clutch that can be made lighter without increasing its size.

〔課題を解決するための手段〕[Means to solve the problem]

本発明に係る一方向クラッチは、クラッチ本体を、回転
軸に結合されたプレート部と、このプレート部上に固定
され転動体を保持するハウジング部とから構成し、前記
プレート部の外周縁に環状壁を設け、この環状壁の一部
に、先端縁にフランジを有し前記転動体が係接するカム
部を形成したものである。
In the one-way clutch according to the present invention, the clutch body includes a plate portion coupled to a rotating shaft, and a housing portion fixed on the plate portion and holding the rolling elements, and the outer peripheral edge of the plate portion has an annular shape. A wall is provided, and a cam portion having a flange at the tip edge and with which the rolling element engages is formed in a part of the annular wall.

〔作用〕[Effect]

本発明においては、カム部に作用する荷重は環状壁に分
散されるようになると共に、カム部はカム部のみに設け
られたフランジで補強されるようになる。
In the present invention, the load acting on the cam part is distributed over the annular wall, and the cam part is reinforced by the flange provided only on the cam part.

〔実施例〕〔Example〕

以下、本発明の一実施例を図により詳細に説明する。第
1図は本発明に係る一方向クラッチを示す第2図の1−
1線断面図、第2図は一方向クラッチを示す正面図であ
る。これらの図において符号lで示すものは一方向クラ
ッチのクラッチ本体を示す。このクラッチ本体lは一方
から被駆動側の回転軸2が結合され、他方から駆動側の
回転部材3が回転自在に嵌合されている。
Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 shows a one-way clutch according to the present invention.
A 1-line sectional view and FIG. 2 are front views showing a one-way clutch. In these figures, the symbol l indicates the clutch body of the one-way clutch. A rotating shaft 2 on the driven side is connected to the clutch body 1 on one side, and a rotating member 3 on the driving side is rotatably fitted on the other side.

前記クラッチ本体lは、円板状に形成されたプレート部
4と、このプレート部4上に複数本の固定ねじ5で固定
されたハウジング部6とから構成されており、プレート
部4は中央孔に設けられたスプライン7で回転軸2に結
合され、ハウジング部6には回転部材3が回転自在に嵌
合されている。
The clutch body 1 is composed of a disk-shaped plate portion 4 and a housing portion 6 fixed onto the plate portion 4 with a plurality of fixing screws 5, and the plate portion 4 has a central hole. The rotating member 3 is connected to the rotating shaft 2 by a spline 7 provided in the housing portion 6, and the rotating member 3 is rotatably fitted into the housing portion 6.

前記プレート部4は円板状の板金加工材からなり、絞り
加工を施すことによって外周縁に円周方向に延在する環
状壁8が一体に設けられている。
The plate portion 4 is made of a disk-shaped sheet metal material, and an annular wall 8 extending in the circumferential direction is integrally provided on the outer peripheral edge by drawing.

この環状壁8には回転軸2の軸心を中心として同一円周
上に沿って延在する3個の円弧部8a・・と、前記同一
円周上よりも内側に位置し同一円周上の2点間を結ぶよ
うに略直線状に延在する3個のカム部8b・・とが交互
に等間隔をおいて形成されている。カム部8b・・は先
端縁に外径方向に突出するフランジ11が一体に形成さ
れている。
This annular wall 8 has three arcuate parts 8a extending along the same circumference centered on the axis of the rotating shaft 2, and three arcuate parts 8a extending along the same circumference centered on the axis of the rotating shaft 2, and three arcuate parts 8a located inside the same circumference and extending along the same circumference. Three cam portions 8b, . The cam portions 8b are integrally formed with a flange 11 projecting in the outer radial direction at the tip edge thereof.

そして、フランジ11を別部材で形成するのではなく、
環状壁8の一部で形成しているので、フランジ11は環
状壁8のカム部8bが形成された部位のみに形成され、
円弧部8aよりも外径方向に突出するようなことがない
。換言すれば、フランジ11の先端縁は円弧部8aの外
周面に沿って延在している。また、カム部8b・・の内
面には回転部材3の外周面に対向し転動体としてのロー
ラ12が係接するカム面13が形成されている。カム面
13は回転部材3の回転方向に漸次回転部材3の外周面
に近接するように傾斜されており、ローラ12を回転部
材3との間に挟持する。14はカム部8bの基端部に設
けられた凹陥部で、ローラ12の隅を逃がして確実にカ
ム面13に係接させるためのものである。
And, instead of forming the flange 11 with a separate member,
Since it is formed from a part of the annular wall 8, the flange 11 is formed only at the portion of the annular wall 8 where the cam portion 8b is formed.
It does not protrude further in the outer radial direction than the arcuate portion 8a. In other words, the tip edge of the flange 11 extends along the outer circumferential surface of the arc portion 8a. Furthermore, a cam surface 13 is formed on the inner surface of the cam portions 8b, facing the outer circumferential surface of the rotating member 3, and with which a roller 12 as a rolling element engages. The cam surface 13 is inclined so as to gradually approach the outer circumferential surface of the rotating member 3 in the direction of rotation of the rotating member 3, and holds the roller 12 between it and the rotating member 3. Reference numeral 14 denotes a concave portion provided at the base end of the cam portion 8b, and is for allowing the corner of the roller 12 to escape and securely engage the cam surface 13.

前記ハウジング部6は、樹脂材やアルミニウム等の金属
材などからなり、前記プレート部4内に嵌合すると共に
、前記回転部材3が嵌入する中央孔を有する環状に形成
されている。そして、ハウジング部6の前記3個のカム
面13に対応した部位には、カム部8bと共にローラ1
2を回転自在に保持する空間Sを形成する3個の凹陥部
15が凹設されている。すなわち、一方向クラッチは、
クラッチ本体lのプレート部4と回転部材3とを、これ
ら部材間に形成された空間S内に保持されたローラ12
を介して連結するように構成されている。
The housing part 6 is made of a resin material or a metal material such as aluminum, and is formed into an annular shape that fits into the plate part 4 and has a central hole into which the rotating member 3 is fitted. A roller 1 is provided at a portion of the housing portion 6 corresponding to the three cam surfaces 13 together with the cam portion 8b.
Three recessed portions 15 are provided to form a space S for rotatably holding the device. In other words, a one-way clutch is
The plate portion 4 of the clutch body l and the rotating member 3 are held together by a roller 12 held in a space S formed between these members.
is configured to be connected via.

16はキャップ17を介してローラ12を押圧するばね
18が装填されたばね保持溝で、このばね保持溝16は
ハウジング部6の一例内面および凹陥部15に開口され
ている。そして、このハウジング部6の一側内面の開口
を前記プレート部4で被覆することでばね18を保持し
ている。
A spring holding groove 16 is loaded with a spring 18 that presses the roller 12 through a cap 17. The spring holding groove 16 is opened in an example of the inner surface of the housing part 6 and in the recessed part 15. The spring 18 is held by covering the opening on the inner surface of one side of the housing part 6 with the plate part 4.

このように構成された一方向クラッチにおいては、回転
部材3が矢印A方向に駆動されると、ローラ12がカム
部8bと回転部材3の外周面との間に挾持されるので、
これら部材間が連結される。
In the one-way clutch configured in this way, when the rotating member 3 is driven in the direction of the arrow A, the roller 12 is held between the cam portion 8b and the outer peripheral surface of the rotating member 3.
These members are connected.

一方、回転部材3が反対の矢印B方向に駆動されると、
ローラ12が遊転し回転部材3とカム部8bとが連結さ
れることがない。
On the other hand, when the rotating member 3 is driven in the opposite direction of arrow B,
The roller 12 rotates freely and the rotating member 3 and the cam portion 8b are not connected.

そして、上述した連結状態において、カム部8bを外径
方向に押圧する荷重が作用するが、カム部8bおよび円
弧部8aが環状に形成されているために、ローラ12か
ら受ける荷重をカム部8bのみで受けるのではなく、両
側の円弧部8aでも受けることができる。すなわち、カ
ム部8bに作用する荷重を円弧部8aへ分散させて受け
ることができる。また、フランジ11でカム部8bを補
強し、先端部が外径方向に変形するのを防止することが
できる。
In the above-mentioned connected state, a load that presses the cam portion 8b in the outer diameter direction is applied, but since the cam portion 8b and the arc portion 8a are formed in an annular shape, the load received from the roller 12 is transferred to the cam portion 8b. It can be received not only by the circular arc portions 8a on both sides. That is, the load acting on the cam portion 8b can be dispersed and received by the arcuate portion 8a. Further, the cam portion 8b is reinforced by the flange 11, and the tip portion can be prevented from deforming in the outer radial direction.

したがって、カム部8bの強度を向上し、従来に比較し
て薄く形成されたプレート部4であっても、所望な強度
を得ることができる。しかも、フランジ11はもともと
カム部8bを形成する部分に設けられているので、プレ
ート部4が大径になることもない。
Therefore, the strength of the cam portion 8b is improved, and even if the plate portion 4 is formed thinner than before, desired strength can be obtained. Furthermore, since the flange 11 is originally provided at the portion forming the cam portion 8b, the plate portion 4 does not have a large diameter.

〔発明の効果〕〔Effect of the invention〕

以上説明したように本発明によれば、クラッチ本体を、
回転軸に結合されたプレート部と、このプレート部上に
固定され転動体を保持するハウジング部とから構成し、
前記プレート部の外周縁に環状壁を設け、この環状壁の
一部に、先端縁にフランジを有し前記転動体が係接する
カム部を形成したから、カム部に作用する荷重を環状壁
に分散させ、しかもカム部のみに設けられたフランジで
カム部を補強することができる。
As explained above, according to the present invention, the clutch body is
Consisting of a plate part coupled to a rotating shaft, and a housing part fixed on this plate part and holding a rolling element,
An annular wall is provided on the outer peripheral edge of the plate portion, and a cam portion having a flange at the tip edge and engaging the rolling element is formed on a part of the annular wall, so that the load acting on the cam portion is transferred to the annular wall. It is possible to disperse the cam parts and to reinforce the cam parts with flanges provided only on the cam parts.

したがって、カム部の強度を向上し、従来に比較して薄
く形成されたプレート部であっても、所望な強度を得る
ことができ、プレート部の薄肉化によって軽量化がはか
れる。しかもフランジによってプレート部が大径になる
ことがないから、大型化することがない。
Therefore, the strength of the cam portion can be improved, and even if the plate portion is formed thinner than before, desired strength can be obtained, and weight reduction can be achieved by making the plate portion thinner. Moreover, since the diameter of the plate portion does not become large due to the flange, the plate portion does not become large in size.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明に係る一方向クラッチを示す第2図の1
−1線断面図、第2図は一方向クラッチを示す正面図で
ある。 1・・・・クラッチ本体、4・・・・プレート部、6.
・・・ハウジング部、8・・・・環状壁、8a・・・・
円弧部、8b・・・・カムLll・・・・フランジ、1
2・・・・口特許出願人 ヤマハ発動機株式会社
FIG. 1 is 1 of FIG. 2 showing a one-way clutch according to the present invention.
-1 line sectional view, and FIG. 2 is a front view showing a one-way clutch. 1...Clutch body, 4...Plate part, 6.
...housing part, 8... annular wall, 8a...
Arc part, 8b...Cam Lll...Flange, 1
2... Patent applicant Yamaha Motor Co., Ltd.

Claims (1)

【特許請求の範囲】[Claims] 回転軸に結合されたクラッチ本体と回転部材とをこれら
部材間に形成された空間内に保持された転動体を介して
連結する一方向クラッチにおいて、前記クラッチ本体を
、回転軸に結合されたプレート部と、このプレート部上
に固定され前記転動体を保持するハウジング部とから構
成し、前記プレート部の外周縁に環状壁を設け、この環
状壁の一部に、先端縁にフランジを有し前記転動体が係
接するカム部を形成してなる一方向クラッチ。
In a one-way clutch that connects a clutch body coupled to a rotating shaft and a rotating member via rolling elements held in a space formed between these members, the clutch body is connected to a plate coupled to the rotating shaft. and a housing part that is fixed on the plate part and holds the rolling element, an annular wall is provided on the outer peripheral edge of the plate part, and a part of the annular wall has a flange at the tip edge. A one-way clutch comprising a cam portion with which the rolling element engages.
JP63238859A 1988-09-26 1988-09-26 One-way clutch Pending JPH0289824A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63238859A JPH0289824A (en) 1988-09-26 1988-09-26 One-way clutch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63238859A JPH0289824A (en) 1988-09-26 1988-09-26 One-way clutch

Publications (1)

Publication Number Publication Date
JPH0289824A true JPH0289824A (en) 1990-03-29

Family

ID=17036321

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63238859A Pending JPH0289824A (en) 1988-09-26 1988-09-26 One-way clutch

Country Status (1)

Country Link
JP (1) JPH0289824A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010151129A (en) * 2008-12-15 2010-07-08 Zen Sa Industria Metalurgica Starter plate having wheel system not receiving friction of roller

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010151129A (en) * 2008-12-15 2010-07-08 Zen Sa Industria Metalurgica Starter plate having wheel system not receiving friction of roller

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