JPH0453474Y2 - - Google Patents
Info
- Publication number
- JPH0453474Y2 JPH0453474Y2 JP17642787U JP17642787U JPH0453474Y2 JP H0453474 Y2 JPH0453474 Y2 JP H0453474Y2 JP 17642787 U JP17642787 U JP 17642787U JP 17642787 U JP17642787 U JP 17642787U JP H0453474 Y2 JPH0453474 Y2 JP H0453474Y2
- Authority
- JP
- Japan
- Prior art keywords
- rubber
- columnar body
- mounting hole
- hard
- 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.)
- Expired
Links
- 229920001971 elastomer Polymers 0.000 claims description 40
- 239000005060 rubber Substances 0.000 claims description 40
- 230000005540 biological transmission Effects 0.000 claims description 6
- 230000035939 shock Effects 0.000 claims description 5
- 239000006096 absorbing agent Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229920001875 Ebonite Polymers 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
Landscapes
- Mechanical Operated Clutches (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
本考案は、自動２輪車用クラツチのように頻繁
に断続され、かつ接続時のシヨツクの小さいこと
が望まれるクラツチにおいて、該シヨツクを緩衝
するための、ばね定数が急増する特性をもつ緩衝
装置に関する。[Detailed Description of the Invention] (Field of Industrial Application) The present invention provides a shock absorber for clutches that are frequently engaged and engaged, such as clutches for two-wheeled motor vehicles, and in which it is desired that the shock at the time of engagement be small. This invention relates to a shock absorber having a characteristic that the spring constant rapidly increases.
（従来の技術）
従来、クラツチ接続開始時にばね定数の低い軟
質のばねが作用し、次に硬質のばねを作用させて
伝達力が急増するようにしたものは周知であり、
ばねの構造及び組合わせには種々の形式がある。
例えば実公昭41−8483においては、筒状ゴムに直
径方向の荷重が加わるようにして軟らかなばねと
して作用させたのち他の硬い弾性体を作用させた
り、筒状ゴムの直径方向の変形による圧潰後は筒
肉部を硬い弾性体として作用させ、伝達力を途中
で急増させている。(Prior Art) Conventionally, it is well known that a soft spring with a low spring constant is applied at the start of clutch engagement, and then a hard spring is applied to rapidly increase the transmitted force.
There are various types of spring structures and combinations.
For example, in Utility Model Publication No. 41-8483, a diametrical load is applied to the cylindrical rubber so that it acts as a soft spring, and then another hard elastic body is applied, and the cylindrical rubber is crushed due to diametrical deformation. After that, the cylindrical wall acts as a hard elastic body, increasing the transmission force midway.
また、特開昭56−59044、同57−73232において
は軟らかな金属ばねと硬いゴムばねを併用して前
記のものと同一の特性をもたせている。 Further, in JP-A-56-59044 and JP-A-57-73232, a soft metal spring and a hard rubber spring are used in combination to provide the same characteristics as those described above.
（考案が解決しようとする問題点）
前記従来技術において、実公昭41−8483のもの
は筒状ゴムの筒肉の曲がり量が大きいため、曲が
り部において疲労による破壊が生じ易いと想定さ
れ、また金属ばねを用いた他の例においては、金
属ばね自体、ばね収容室、なべ係合部等の構造が
単純ではなく、かつ部品数も多いため高価になり
多量生産には適さないと考えられる。(Problems to be Solved by the Invention) In the above-mentioned prior art, it is assumed that the one of Utility Model Publication No. 41-8483 has a large amount of bending in the wall of the cylindrical rubber, so it is assumed that fracture due to fatigue is likely to occur at the bent part. In other examples using metal springs, the structure of the metal spring itself, the spring accommodating chamber, the pan engaging portion, etc. is not simple, and the number of parts is large, making it expensive and not suitable for mass production.
したがつて、本考案は、耐久性があり、構造簡
単で加工し易い緩衝装置を得ることを目的とする
ものである。 Therefore, an object of the present invention is to provide a shock absorbing device that is durable, has a simple structure, and is easy to process.
（問題点を解決するための手段）
本考案は、前記目的を達するための手段とし
て、クラツチのアウタ部材の側壁に隣接して伝動
用の歯車を設け、この側壁と歯車のいずれか一方
に複数個の取付穴を設けると共に他方にはこの取
付穴内に突出する小径の柱状体を設け、取付穴と
柱状体の間の空間に硬さが異なる２種以上のリン
グ状の緩衝ゴムを介設するものにおいて、軟質緩
衝ゴムは取付穴と柱状体に密接し、硬質緩衝ゴム
は取付穴で予圧縮され、かつ柱状体との間に空〓
を設けて介設したことを特徴とする。(Means for solving the problem) As a means for achieving the above object, the present invention provides a transmission gear adjacent to the side wall of the outer member of the clutch, and a plurality of transmission gears are provided on either side of the side wall or the gear. At the same time, a columnar body with a small diameter is provided on the other side to protrude into the mounting hole, and two or more types of ring-shaped cushioning rubbers with different hardness are interposed in the space between the mounting hole and the columnar body. In this case, the soft cushioning rubber is in close contact with the mounting hole and the columnar body, and the hard cushioning rubber is pre-compressed in the mounting hole, and there is no air space between it and the columnar body.
It is characterized in that it is interposed by providing.
（作用）
前記の手段により、クラツチが接続を開始する
小トルク伝達時は、軟質緩衝ゴムを介してトルク
伝達がなされ、トルクが増大すれば、硬質緩衝ゴ
ムの内面が柱状体に圧接してトルク伝達がなされ
る。このとき、硬質緩衝ゴムと柱状体が圧接する
部分には圧縮力が働くが、これに隣接する部分に
は引張り力が生じる。しかし、該硬質緩衝ゴム
は、全体が予圧縮されているので、、該引張り力
は相殺又は低減されて小さい値となるから、トル
ク変動による繰返し引張り応力が作用しても疲労
による破壊は生じ難い。(Function) With the above-mentioned means, when a small torque is transmitted when the clutch starts to engage, the torque is transmitted via the soft cushion rubber, and when the torque increases, the inner surface of the hard cushion rubber is pressed against the columnar body to transmit the torque. At this time, a compressive force acts on the part where the hard cushion rubber and the columnar body are pressed against each other, but a tensile force is generated in the adjacent part. However, since the hard cushion rubber is pre-compressed as a whole, the tensile force is offset or reduced to a small value, so that even if repeated tensile stress due to torque fluctuation acts on the hard cushion rubber, it is unlikely to break due to fatigue.
（実施例） 以下本考案の実施例を図面によつて説明する。(Example) Embodiments of the present invention will be described below with reference to the drawings.
第１図ないし第３図において１はクラツチ、２
は該クラツチ１に緩衝ゴムを介して接続される被
動歯車で、該被動歯車２は、始動歯車３ａのボス
３とスプライン結合してクリツプ３ｂで係止さ
れ、エンジンのクランク軸４と一体の駆動歯車５
によつて駆動される。 In Figures 1 to 3, 1 is the clutch, 2
is a driven gear connected to the clutch 1 via a buffer rubber, and the driven gear 2 is spline-coupled to the boss 3 of the starting gear 3a and locked with a clip 3b, and is driven integrally with the crankshaft 4 of the engine. gear 5
driven by.
クラツチ１は、従来周知の形式のもので、アウ
タ部材６は、第３図に示すように円筒部７と底部
８を持つ椀形であり、円筒部７に設けた縦溝７ａ
には多数の摩擦板９，９……が係止されている。
インナ部材１０は、出力軸に結合されるスプライ
ン１１ａをもつボス１１と一体に結合され、外周
側にフランジ１２とキー１３ａをもつ円筒部１３
が設けられ、キー１３ａには、摩擦板９と交互に
配置される多数の摩擦板１４，１４……が係止さ
れ、フランジ１２と摩擦板の間にはスラストダン
パ１５が介設されている。各摩擦板９，１４は、
加圧ばね１６ａで加圧される加圧板１６によつて
フランジ１２に向けて圧着されて接続状態にな
り、ベアリング１６ｂを図示を省略した押棒で逆
方向に押したとき解放されるようになつている。
１７はスラスト板で、インナ部材１１とボス３の
相互の位置を規定する。 The clutch 1 is of a conventionally known type, and the outer member 6 is bowl-shaped with a cylindrical portion 7 and a bottom portion 8, as shown in FIG.
A large number of friction plates 9, 9... are locked to the.
The inner member 10 is integrally connected to a boss 11 having a spline 11a connected to an output shaft, and has a cylindrical portion 13 having a flange 12 and a key 13a on the outer circumferential side.
A large number of friction plates 14, 14, . Each friction plate 9, 14 is
The pressure plate 16 pressurized by the pressure spring 16a presses the bearing 16 toward the flange 12 to bring it into a connected state, and releases it when the bearing 16b is pushed in the opposite direction with a push rod (not shown). There is.
A thrust plate 17 defines the mutual positions of the inner member 11 and the boss 3.
アウタ部材６の底部８の外面には、直径ｄの複
数の柱状体１８，１８……が突設され、被動歯車
２に設けた内径Ｄの取付穴１９，１９……内に同
心に位置し、取付穴１９，１９内にはリング状の
軟質緩衝ゴム２０と硬質緩衝ゴム２１が交互に設
置されている。 A plurality of columnar bodies 18, 18, . Ring-shaped soft buffer rubber 20 and hard buffer rubber 21 are alternately installed in the mounting holes 19, 19.
軟質緩衝ゴム２０は、第４図に示された穴２０
ａをもつ軟質材料からなるゴムリングで、外周に
は変形を容易にするための突起２０ｂが等間隔で
突設され、外径D1、内径d1、は、ほぼD1＝Ｄ，
d1＝ｄの関係にあり、該ゴム２０は、実質上変形
を受けず無応力の状態で第４図Ｃのように介設さ
れる。 The soft cushioning rubber 20 has holes 20 shown in FIG.
It is a rubber ring made of a soft material and has protrusions 20b protruding from the outer periphery at equal intervals to facilitate deformation, and the outer diameter D 1 and inner diameter d 1 are approximately D 1 =D,
There is a relationship of d 1 =d, and the rubber 20 is inserted as shown in FIG. 4C in a stress-free state without being substantially deformed.
一方、第５図に示す硬質緩衝ゴム２１は、穴２
１ａをもつ硬質材料からなる大径のリング体で、
外径D2、内径d2は、D2＞Ｄ，d2＞ｄの関係にあ
り、第５図Ｃ，ｄに示すように外径D2をＤに圧
縮して取付穴１９に嵌合し、内径d2もd2′に縮小
するが、なおd2′＞d2の関係にあつて第５図Ｃに
示すように柱状体１８との間には間〓Ｃが存在す
る。 On the other hand, the hard buffer rubber 21 shown in FIG.
A large diameter ring body made of hard material with 1a,
The outer diameter D 2 and the inner diameter d 2 have a relationship of D 2 > D, d 2 > d, and as shown in Fig. 5C and d, the outer diameter D 2 is compressed to D and fitted into the mounting hole 19. Although the inner diameter d 2 is also reduced to d 2 ' , there is still a gap C between it and the columnar body 18, as shown in FIG.
また、被動歯車２には複数の段穴２２があつ
て、ここに軸方向の緩衝ゴム２３が挿入され、該
緩衝ゴム２３及び前記緩衝ゴム２０，２１は、リ
ベツト２４で止着されるリング状の押さえ板２５
で係止される。 Further, the driven gear 2 has a plurality of stepped holes 22 into which axial buffer rubber 23 is inserted. holding plate 25
It is locked at.
以上の構成により、トルクは、被動歯車２、緩
衝ゴム２０，２１、柱状体１８を経てクラツチ１
に伝達されるが、最初は軟質緩衝ゴム２０のみを
介して第６図のＡ線に示す関係で伝達され、歯車
１とクラツチ２の相対回転角がθ1に達した点で硬
質緩衝ゴム２１の内径面が柱状体に接して該緩衝
ゴム２１を介する伝達力が付加され、伝達トルク
ＴはＢのように上昇する。 With the above configuration, torque is transmitted to the clutch 1 via the driven gear 2, the buffer rubbers 20 and 21, and the columnar body 18.
Initially, it is transmitted only through the soft buffer rubber 20 in the relationship shown in line A in FIG. The inner diameter surface of is in contact with the columnar body, a transmission force is applied via the buffer rubber 21, and the transmission torque T increases as shown by B.
このとき、硬質緩衝ゴム２１は、柱状体１８の
取付穴１９の間で挟圧されるが、このような状態
に置かれたゴムは、一般に第７図に示すように、
ゴムＧが加圧体Ｓにより正面から力を受ける部分
イにおいては圧縮力f1が作用し、この部分イの変
形により、これに連らなる部分ロにおいては引張
り力f2，f2が生じる。そしてこのような形状の硬
質ゴムは、材料によつて異なるが一般に繰返し圧
縮に対する耐久性は高いが、繰返し引張りを伴な
う変形に対する耐久性は低いため、該繰返し引張
りによつて部分ロにおいては疲労による破壊Ｋが
生じ易い。 At this time, the hard cushioning rubber 21 is compressed between the mounting holes 19 of the columnar body 18, but the rubber placed in such a state is generally compressed as shown in FIG.
Compressive force f 1 acts on the part A where the rubber G receives force from the front from the pressurizing body S, and tensile forces f 2 and f 2 are generated in the continuous part B due to the deformation of this part A. . Hard rubber with such a shape generally has high durability against repeated compression, although it differs depending on the material, but has low durability against deformation due to repeated tension. Fracture K due to fatigue is likely to occur.
しかし、本考案においては、硬質緩衝ゴム２１
は、第５図ｄに示すように外径D2からＤに予圧
縮されて円形穴１９内に圧入されているため、ゴ
ム内部全体に圧縮応力が生じており、第７図の引
張り力f2が生じても、該引張り力f2は前記圧縮応
力によつて相殺または低減される。これにより硬
質緩衝ゴム２１の破壊は防止され長期の使用に耐
えることができる。 However, in the present invention, the hard buffer rubber 21
is precompressed from the outer diameter D2 to D and press-fitted into the circular hole 19 as shown in Fig. 5d, so compressive stress is generated throughout the inside of the rubber, and the tensile force f in Fig. 7 2 , the tensile force f 2 is offset or reduced by the compressive stress. This prevents the hard buffer rubber 21 from being destroyed and can withstand long-term use.
上記実施例において、各柱状体１８、及び各円
形穴１９はそれぞれ同一径としてあるが、ゴム材
質等によつて寸法を変えてもよいし、またゴムの
形状、硬度及び軟質緩衝ゴムと硬質緩衝ゴムの数
の割合も任意に選定できる。 In the above embodiment, each columnar body 18 and each circular hole 19 have the same diameter, but the dimensions may be changed depending on the rubber material, etc., and the shape and hardness of the rubber, as well as the soft cushioning rubber and the hard cushioning rubber. The ratio of the number of rubbers can also be arbitrarily selected.
（考案の効果）
本考案は、以上のように簡単な構成で所望の緩
衝特性が得られると共に、硬質緩衝ゴム内に生じ
る内部応力が低減されるので、疲労抵抗が高く長
期の使用に耐えることができる。(Effects of the invention) As described above, the present invention achieves the desired cushioning characteristics with a simple configuration, and also reduces the internal stress generated in the hard cushioning rubber, so it has high fatigue resistance and can withstand long-term use. I can do it.
第１図は本考案の実施例の縦断面図、第２図は
一部分解側面図、第３図は一部分解縦断面図、第
４図ａは軟質緩衝ゴムの平面図、ｂは斜面図、ｃ
は取付け状態断面図、第５図ａは硬質緩衝ゴムの
平面図、ｂは斜面図、ｃは取付状態断面図、ｄは
予圧縮説明図、第６図は緩衝装置のばね特性線
図、第７図は作用説明図である。
１……クラツチ、２……歯車、１８……柱状
体、１９……取付穴、２０……軟質緩衝ゴム、２
１……硬質緩衝ゴム、ｃ……空〓。
Fig. 1 is a longitudinal sectional view of an embodiment of the present invention, Fig. 2 is a partially exploded side view, Fig. 3 is a partially exploded longitudinal sectional view, Fig. 4 a is a plan view of the soft cushioning rubber, and Fig. 4 b is a slope view. c.
5 is a sectional view of the installed state, FIG. FIG. 7 is an explanatory diagram of the action. 1...Clutch, 2...Gear, 18...Column, 19...Mounting hole, 20...Soft buffer rubber, 2
1...Hard buffer rubber, c...Empty.
Claims (1)
の歯車を設け、この側壁と歯車のいずれか一方に
複数個の取付穴を設けると共に他方にはこの取付
穴内に突出する小径の柱状体を設け、取付穴と柱
状体の間の空間に硬さが異なる２種以上のリング
状の緩衝ゴムを介設するものにおいて、軟質緩衝
ゴムは取付穴と柱状体に密接し、硬質緩衝ゴムは
取付穴で予圧縮され、かつ柱状体との間に空〓を
設けて介設したことを特徴とする、クラツチ用緩
衝装置。 A transmission gear is provided adjacent to the side wall of the outer member of the clutch, a plurality of mounting holes are provided in one of the side wall and the gear, and the other is provided with a small diameter columnar body that protrudes into the mounting hole, In the case where two or more types of ring-shaped buffer rubber with different hardness are interposed in the space between the mounting hole and the columnar body, the soft buffer rubber is in close contact with the mounting hole and the columnar body, and the hard buffer rubber is in the mounting hole. A shock absorber for a clutch, characterized in that it is pre-compressed and is interposed with a space provided between it and a columnar body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17642787U JPH0453474Y2 (en) | 1987-11-20 | 1987-11-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17642787U JPH0453474Y2 (en) | 1987-11-20 | 1987-11-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0180849U JPH0180849U (en) | 1989-05-30 |
| JPH0453474Y2 true JPH0453474Y2 (en) | 1992-12-16 |
Family
ID=31468161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17642787U Expired JPH0453474Y2 (en) | 1987-11-20 | 1987-11-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0453474Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018179122A1 (en) * | 2017-03-29 | 2018-10-04 | 本田技研工業株式会社 | Power transmission device |
-
1987
- 1987-11-20 JP JP17642787U patent/JPH0453474Y2/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018179122A1 (en) * | 2017-03-29 | 2018-10-04 | 本田技研工業株式会社 | Power transmission device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0180849U (en) | 1989-05-30 |
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