JPS6216338B2 - - Google Patents
Info
- Publication number
- JPS6216338B2 JPS6216338B2 JP15481879A JP15481879A JPS6216338B2 JP S6216338 B2 JPS6216338 B2 JP S6216338B2 JP 15481879 A JP15481879 A JP 15481879A JP 15481879 A JP15481879 A JP 15481879A JP S6216338 B2 JPS6216338 B2 JP S6216338B2
- Authority
- JP
- Japan
- Prior art keywords
- gas
- pressure
- free piston
- chamber
- gas pressure
- 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
- 238000005192 partition Methods 0.000 claims 2
- 239000000725 suspension Substances 0.000 description 4
- 239000006096 absorbing agent Substances 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/02—Spring characteristics, e.g. mechanical springs and mechanical adjusting means
- B60G17/04—Spring characteristics, e.g. mechanical springs and mechanical adjusting means fluid spring characteristics
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Description
【発明の詳細な説明】
本発明はガス封入装置に関し、更に詳しくはオ
ートバイのリヤクツシヨンユニツト等に於て、オ
ートバイのスタート時と走行時に二段階にガスを
封入するガス封入装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a gas charging device, and more particularly to a gas charging device for charging gas in two stages, at the time of starting and when the motorcycle is running, in a motorcycle's reaction unit or the like.
一般にオートバイのリヤクツシヨンユニツトで
は油圧緩衝器にタンクを接続し、このタンクには
フリーピストンを介してオイル室とガス室を区画
し、ガス室への封入ガス圧は乗心地、吸収性等総
合的なセツテイングによつて決定するので比較的
低い圧力にセツトされているのが普通である。こ
のガス室のガス圧が比較的低いことは走行中に於
て乗心地をよくしているが、例えばオートレース
等に使用されるオートバイのスタート時にはリヤ
クツシヨンユニツトの分担荷重が一時に大きくな
りガス室のガス圧に抗してオートバイ背部がしず
み、逆に前側が浮き上がるという現象が生じ、危
険であると同時に姿勢変化があつてオートレース
のスタート時の遅れが生じてしまう。 Generally, in a motorcycle's rear suspension unit, a tank is connected to a hydraulic shock absorber, and this tank is divided into an oil chamber and a gas chamber via a free piston, and the gas pressure charged into the gas chamber is adjusted to improve riding comfort, absorbency, etc. Since the pressure is determined by the manual setting, it is usually set at a relatively low pressure. The relatively low gas pressure in the gas chamber provides a comfortable ride while riding, but when starting a motorcycle used for auto racing, for example, the load shared by the rear suspension unit becomes large at once. This causes the back of the motorcycle to sag against the gas pressure in the gas chamber, and the front of the motorcycle to lift up, which is dangerous and at the same time causes a change in posture, causing a delay at the start of an auto race.
従つて本発明の目的はスタート時には高圧を封
入してリヤクツシヨンユニツトのばね荷重を高く
することによりフロントの浮き上がりを少なく
し、スタート後通常の走行状態になつた時ガスを
抜いてばね荷重を低くして乗心地を良くするよう
にしたオートバイのリヤクツシヨンユニツトの使
用に好適なガス封入装置を提供することである。 Therefore, the purpose of the present invention is to reduce the front lift by increasing the spring load of the rear action unit by filling high pressure at the time of starting, and to reduce the spring load by releasing the gas when the vehicle returns to normal driving condition after starting. To provide a gas filling device suitable for use in a motorcycle rear suspension unit which is lowered to improve riding comfort.
以下本発明の実施の一態様を図面について説明
する。 An embodiment of the present invention will be described below with reference to the drawings.
リヤクツシヨンユニツト１は油圧シリンダ２内
にピストン３を介してピストンロツト４が摺動自
在に挿入され、ピストン３はシリンダ２内に上下
二つの油室５，６を区画している。 In the rear action unit 1, a piston rod 4 is slidably inserted into a hydraulic cylinder 2 via a piston 3, and the piston 3 defines two upper and lower oil chambers 5 and 6 within the cylinder 2.
シリンダ２とピストンロツド４端部にはブラケ
ツト７，８が設けられ、これらのブラケツト７，
８はオートバイの後輪側と車体側間に接続され、
又シリンダ２側のスプリングシート９とピストン
ロツド４側のスプリングシート１０間には懸架ス
プリング１１が介装されて常時リヤクツシヨンユ
ニツト１を伸長方向に附勢している。 Brackets 7, 8 are provided at the ends of the cylinder 2 and piston rod 4, and these brackets 7,
8 is connected between the rear wheel side and the body side of the motorcycle,
A suspension spring 11 is interposed between the spring seat 9 on the cylinder 2 side and the spring seat 10 on the piston rod 4 side to constantly urge the rear action unit 1 in the direction of extension.
ブラケツト８には油室６と通じる通孔１２を形
成し、この通孔１２は連結部材１３とホース１４
を介して油圧タンク１５に接続されている。 A through hole 12 communicating with the oil chamber 6 is formed in the bracket 8, and this through hole 12 connects a connecting member 13 and a hose 14.
It is connected to the hydraulic tank 15 via.
タンク１５はタンクケース１６内に第１のフリ
ーピストン１７と第２のフリーピストン１８が摺
動自在に挿入され、フリーピストン１７，１８は
タンクケース１６内には油室１９と一次ガス室２
０が区画されている。第１、第２フリーピストン
１７，１８の外周にはシール２１，２２が介装さ
れてオイルとガスの洩れを防止している。第２の
フリーピストン１８はねじ部２３と中央のガス封
入孔２４を設け、ねじ部２３はタンクケース１６
の孔２７を介してケース外部に突出しており、ガ
ス封入孔２４の口端には第１のガス封入バルブ２
５が接続されている。又タンクケース１６の外周
には第１のガス封入バルブ２５を被覆するハウジ
ング２６が着脱自在に螺合され、このハウジング
２６には第２のガス封入バルブ２８とガス抜き通
路２９が接続され、ガス抜き通路２９の途中には
ガス抜きバルブ３０が介装されている。 In the tank 15, a first free piston 17 and a second free piston 18 are slidably inserted into a tank case 16, and the free pistons 17 and 18 have an oil chamber 19 and a primary gas chamber 2 in the tank case 16.
0 is partitioned. Seals 21 and 22 are interposed on the outer peripheries of the first and second free pistons 17 and 18 to prevent oil and gas from leaking. The second free piston 18 is provided with a threaded part 23 and a central gas filling hole 24, and the threaded part 23 is connected to the tank case 16.
The first gas filling valve 2 protrudes to the outside of the case through the hole 27, and the first gas filling valve 2 is located at the mouth end of the gas filling hole 24.
5 is connected. A housing 26 that covers the first gas filling valve 25 is removably screwed onto the outer periphery of the tank case 16. A second gas filling valve 28 and a gas venting passage 29 are connected to this housing 26. A gas vent valve 30 is interposed in the middle of the vent passage 29.
タンクケース１６内の油室１９は左右一対のリ
ヤクツシヨンユニツト１にホース１４を介してそ
れぞれ接続してもよく、又タンク１５を二組用意
して別々のリヤクツシヨンユニツト１に接続して
もよい。 The oil chamber 19 in the tank case 16 may be connected to a pair of left and right rear-action units 1 via hoses 14, or two sets of tanks 15 may be prepared and connected to separate rear-action units 1. Good too.
一次ガス室２０のガス圧はフリーピストン１７
を押圧し油室１９及びリヤクツシヨンユニツト１
側の油室６に所定の圧を立てておくもので、この
一次ガス室２０内にはオートバイの走行に適切な
ガス圧を封入しておくものである。 The gas pressure in the primary gas chamber 20 is the free piston 17
Press the oil chamber 19 and reaction unit 1.
A predetermined pressure is maintained in the side oil chamber 6, and the primary gas chamber 20 is filled with a gas pressure appropriate for running the motorcycle.
即ち、第２図に示すように、先ず走行中の適応
するガス圧を一次ガス室にガス封入させる場合に
は、ハウジング２０をタンクケース１６よりはず
し、ねじ部２３を孔２７より突出した状態でナツ
ト３１を螺着し、第２のフリーピストン１８をタ
ンクケース１６の内壁に当接しておく。この状態
から第１のガス封入バルブ２５よりガスを封入
し、ガス封入孔２４より一次ガス室２０内にガス
を導入し、この一次ガス室２０内にオートバイの
走行中に適切な初期ガス圧P1を封入させる。 That is, as shown in FIG. 2, when filling the primary gas chamber with gas at a gas pressure suitable for driving, first remove the housing 20 from the tank case 16 and leave the threaded part 23 protruding from the hole 27. The nut 31 is screwed on, and the second free piston 18 is brought into contact with the inner wall of the tank case 16. From this state, gas is filled from the first gas filling valve 25, and gas is introduced into the primary gas chamber 20 from the gas filling hole 24, and the initial gas pressure P is set in the primary gas chamber 20 while the motorcycle is running. Enclose 1 .
次にナツト３１をはずし、タンクケース１５に
ハウジング２６を螺着し、第２のフリーピストン
１８はタンクケース１６内で摺動できるようにし
ておき、ハウジング２６は以後スタート時のみな
らず走行中にも装着しておくものである。 Next, the nut 31 is removed and the housing 26 is screwed onto the tank case 15 so that the second free piston 18 can slide within the tank case 16. It should also be worn.
一方オートレース等においてオートバイのスタ
ート時にはリヤクツシヨンユニツト１のばね荷重
を高くするため一次ガス室２０の内圧を高くする
必要があり、この場合には第３図のように第２の
フリーピストン１８背部にスタート時に適切な二
次ガス圧をかけるものである。 On the other hand, when starting a motorcycle in an auto race or the like, it is necessary to increase the internal pressure of the primary gas chamber 20 in order to increase the spring load of the rear traction unit 1. In this case, as shown in FIG. This applies appropriate secondary gas pressure to the back at the start.
この場合には第２の封入バルブ２８より一次ガ
ス室２０の初期ガス圧P1より高圧の二次ガス圧P2
を導入し、このガス圧P2はスタート時に適切なガ
ス圧となる。 In this case, the secondary gas pressure P 2 higher than the initial gas pressure P 1 in the primary gas chamber 20 is supplied from the second sealed valve 28.
is introduced, and this gas pressure P 2 becomes the appropriate gas pressure at the start.
即ち、第２の封入バルブ２８よりガスを導入す
るとハウジング２６の室２６ａ、ガス封入孔２７
より第２のフリーピストン１８背面にガス圧P2の
ガスが封入され、このガス圧P2により第２のフリ
ーピストン１８は第１のフリーピストン１９と一
次ガス室２０のガス圧を押圧しながら移動し、第
２のフリーピストン１８背部にガス圧P2の二次ガ
ス室３２が区画され、第１、第２のフリーピスト
ン１７，１８は一次ガス室２０内のガス圧がガス
室３２のガス圧P2と同圧となつた時停止する。こ
の時このガス圧P2が油室１９よりホース１４を介
してリヤクツシヨンユニツト１側の油室６に作用
する為リヤクツシヨンユニツト１のばね荷重がガ
ス圧P2を封入した分高くなり、リヤクツシヨン反
力が増大する。この為オートレースのスタート時
にはリヤクツシヨンユニツト１の分担荷重が大き
くなつても反力が大きいのでしずむことなく、従
つてフロントが浮き上がらず、乗員の姿勢変化が
少なく、スタート遅れを防止できるものである。 That is, when gas is introduced from the second filling valve 28, the chamber 26a of the housing 26 and the gas filling hole 27 are filled.
Gas with a gas pressure P 2 is sealed in the back of the second free piston 18 , and this gas pressure P 2 causes the second free piston 18 to press against the first free piston 19 and the gas pressure in the primary gas chamber 20 . A secondary gas chamber 32 with a gas pressure P 2 is defined at the back of the second free piston 18, and the first and second free pistons 17, 18 are moved so that the gas pressure in the primary gas chamber 20 is It stops when the pressure becomes the same as gas pressure P 2 . At this time, this gas pressure P 2 acts from the oil chamber 19 through the hose 14 to the oil chamber 6 on the side of the reaction unit 1, so the spring load of the reaction unit 1 increases by the amount of gas pressure P 2 enclosed. , the reaction force increases. Therefore, at the start of an auto race, even if the load shared by the rear action unit 1 increases, the reaction force is large, so it does not stagnate, the front does not lift up, there is little change in the posture of the occupants, and it is possible to prevent delays in the start. be.
又スタート後走行中には上記のガス圧P2を封入
したまゝだと乗心地が悪い為に、第２のフリーピ
ストン１８背部の二次ガス室３２におけるガスを
抜く必要がある。この場合にはハウジング２６に
接続した通路２９のガス抜きバルブ３０を解放し
てガスを抜き初期設定圧力P1に戻すものである。
このガス抜き作業はオートバイの走行中に行い、
この方法としては手動操作でもよく、セルフタイ
マーを使用して電気的、自動的に行うものでもよ
い。 Furthermore, while the vehicle is running after starting, the riding comfort will be poor if the gas pressure P 2 is kept in the air, so it is necessary to vent the gas in the secondary gas chamber 32 at the back of the second free piston 18. In this case, the gas vent valve 30 in the passage 29 connected to the housing 26 is opened to remove the gas and return the pressure to the initial setting pressure P1 .
This degassing work is done while the motorcycle is running.
This method may be performed manually or electrically and automatically using a self-timer.
以上のように本発明では走行中とスタート時の
ガス封入圧力を任意に設定でき、スタート時には
封入ガス圧を大きくしてリヤクツシヨン圧力を増
大できる為、スタートの優劣が成績を大きく左右
するオフロード車にとつては非常に有利なもので
ある。 As described above, in the present invention, the gas filling pressure can be arbitrarily set during driving and at the time of starting, and the filling gas pressure can be increased to increase the reaction pressure at the time of starting, so the performance of off-road vehicles is greatly influenced by the quality of the start. It is very advantageous for.
第１図は本発明のガス封入装置を使用したリヤ
クツシヨンユニツトの一部縦断側面図、第２図、
第３図はガス封入時の油圧タンクの拡大縦断側面
図である。
１６……タンクケース、１７，１８……フリー
ピストン、１９……油室、２０……一次ガス室、
２５……ガス封入バルブ、２６……ハウジング、
２７……ガス封入孔、２８……ガス封入バルブ、
２９……通路、P1……初期ガス圧、P2……二次ガ
ス圧。
Fig. 1 is a partial longitudinal sectional side view of a reaction unit using the gas filling device of the present invention;
FIG. 3 is an enlarged longitudinal sectional side view of the hydraulic tank when gas is filled. 16... Tank case, 17, 18... Free piston, 19... Oil chamber, 20... Primary gas chamber,
25...Gas filled valve, 26...Housing,
27... Gas filling hole, 28... Gas filling valve,
29...Passage, P1 ...Initial gas pressure, P2 ...Secondary gas pressure.
Claims (1)
ンを摺動自在に挿入し、第１のフリーピストンは
タンクケース内に油室と一次ガス室を区画し、第
２のフリーピストン内より一次ガス室に初期ガス
圧を封入しておき、次にタンクケースにハウジン
グを着脱自在に結合させ、このハウジング内より
第２のフリーピストン背部に二次ガス圧を吸排さ
せるようにしたガス封入装置。 ２ 初期ガス圧がオートバイの走行中に適切なガ
ス圧である特許請求の範囲第１項記載のガス封入
装置。 ３ 二次ガス圧がオートバイのスタート時の適切
なガス圧である特許請求の範囲第１項記載のガス
封入装置。 ４ 第２のフリーピストンにガス封入バルブとガ
ス封入孔を設けた特許請求の範囲第１項記載のガ
ス封入装置。 ５ ハウジングにガス封入バルブとガス抜き通路
を設けた特許請求の範囲第１項記載のガス封入装
置。[Claims] 1. A first and a second free piston are slidably inserted into a tank case, the first free piston partitions an oil chamber and a primary gas chamber into the tank case, and a second free piston partitions an oil chamber and a primary gas chamber into the tank case. Initial gas pressure is sealed in the primary gas chamber from within the free piston, and then a housing is removably connected to the tank case, and secondary gas pressure is sucked and discharged from inside the housing to the back of the second free piston. gas filling device. 2. The gas filling device according to claim 1, wherein the initial gas pressure is a gas pressure appropriate for when the motorcycle is running. 3. The gas filling device according to claim 1, wherein the secondary gas pressure is an appropriate gas pressure at the time of starting the motorcycle. 4. The gas filling device according to claim 1, wherein the second free piston is provided with a gas filling valve and a gas filling hole. 5. The gas filling device according to claim 1, wherein the housing is provided with a gas filling valve and a gas vent passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15481879A JPS5676742A (en) | 1979-11-29 | 1979-11-29 | Gas filling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15481879A JPS5676742A (en) | 1979-11-29 | 1979-11-29 | Gas filling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5676742A JPS5676742A (en) | 1981-06-24 |
| JPS6216338B2 true JPS6216338B2 (en) | 1987-04-11 |
Family
ID=15592537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15481879A Granted JPS5676742A (en) | 1979-11-29 | 1979-11-29 | Gas filling device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5676742A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0614578U (en) * | 1992-07-29 | 1994-02-25 | 株式会社ショーワ | Gas filling device for reservoir |
| JP4673755B2 (en) * | 2006-01-17 | 2011-04-20 | 本田技研工業株式会社 | Motorcycle, tricycle |
| JP5878285B2 (en) * | 2010-04-23 | 2016-03-08 | 株式会社ブリヂストン | Air spring type pressure vessel structure |
-
1979
- 1979-11-29 JP JP15481879A patent/JPS5676742A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5676742A (en) | 1981-06-24 |
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