JPH0680044U - Anti-vibration bush - Google Patents
Anti-vibration bushInfo
- Publication number
- JPH0680044U JPH0680044U JP2653993U JP2653993U JPH0680044U JP H0680044 U JPH0680044 U JP H0680044U JP 2653993 U JP2653993 U JP 2653993U JP 2653993 U JP2653993 U JP 2653993U JP H0680044 U JPH0680044 U JP H0680044U
- Authority
- JP
- Japan
- Prior art keywords
- vibration
- elastic body
- bellows
- bush
- shift
- 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
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
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/26—Generation or transmission of movements for final actuating mechanisms
-
- 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
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/02—Selector apparatus
- F16H59/0208—Selector apparatus with means for suppression of vibrations or reduction of noise
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Transmission Device (AREA)
- Vibration Prevention Devices (AREA)
- Springs (AREA)
- Gear-Shifting Mechanisms (AREA)
Abstract
(57)【要約】
【目的】 自動車用手動変速機の、シフトレバーとトラ
ンスミッション側のアームを弾性的に接続する防振ブッ
シュについて、シフト操作時におけるシフトレバーのス
トローク量を小さくし、シフトフィーリングを悪化させ
ることなしに、大きな振動低減効果を得る。
【構成】 インナースリーブ１とアウタースリーブ２を
蛇腹形の弾性体３を介して接続し、当該防振ブッシュに
所定の大きさの荷重が入力したときにこの蛇腹形の弾性
体３を座屈させることにして、バネ定数を初め高く、後
に低く切り換えるようにした。
(57) [Abstract] [Purpose] Regarding a vibration isolation bush that elastically connects the shift lever and the arm on the transmission side of a manual transmission for automobiles, the stroke amount of the shift lever at the time of shift operation is reduced to achieve a shift feeling. A large vibration reduction effect can be obtained without deteriorating. [Structure] An inner sleeve 1 and an outer sleeve 2 are connected via a bellows-shaped elastic body 3, and the bellows-shaped elastic body 3 is buckled when a predetermined amount of load is input to the vibration-proof bush. We decided to switch the spring constant to high initially and then low.
Description
【０００１】[0001]
本考案は、防振ブッシュの改良に関する。本考案の防振ブッシュは主に自動車 用の手動変速機において、シフトレバーとトランスミッション側のアームを弾性 的に接続するために用いられる。 The present invention relates to an improvement of an anti-vibration bush. The anti-vibration bush of the present invention is mainly used in a manual transmission for an automobile to elastically connect the shift lever and the transmission side arm.
【０００２】[0002]
図４に示すような自動車用の手動変速機において、搭乗者が操作するシフトレ バー５１とこのシフトレバー５１に連動するトランスミッション側のアーム５２ は防振ブッシュ５３を介して弾性的に接続されている（実開昭６３−１１９１２ ４号公報参照）。 In a manual transmission for an automobile as shown in FIG. 4, a shift lever 51 operated by an occupant and a transmission-side arm 52 that is interlocked with the shift lever 51 are elastically connected via a vibration-proof bush 53. (See Japanese Utility Model Laid-Open No. 63-119124).
【０００３】 シフトレバー５１はその大球部５１ａを車体側のソケット５４に回転自在に支 持されてこの大球部５１ａを支点として揺動し、またその下端の作用点に設けた 小球部５１ｂに球面ブッシュ５５および防振ブッシュ５３を介してアーム５２を 弾性的に接続している。防振ブッシュ５３は球面ブッシュ５５の外周側に嵌着さ れたインナースリーブ５６と、アーム５２の嵌着部５２ａの内周側に嵌着された アウタースリーブ５７と、両スリーブ５６，５７を接続したゴム状弾性材製の弾 性体５８とを有しており、シフト時の衝撃やミッション側の振動が搭乗者の手元 へ伝わることがないように、これらを弾性体５８の弾性によって吸収する作用を 奏する。The shift lever 51 has its large spherical portion 51a rotatably supported by a socket 54 on the vehicle body side and swings around the large spherical portion 51a as a fulcrum, and a small spherical portion provided at an action point at its lower end. An arm 52 is elastically connected to 51b via a spherical bush 55 and a vibration-proof bush 53. The vibration-proof bush 53 connects the inner sleeve 56 fitted on the outer peripheral side of the spherical bush 55, the outer sleeve 57 fitted on the inner peripheral side of the fitting portion 52a of the arm 52, and both sleeves 56, 57. The elastic body 58 made of rubber-like elastic material absorbs the impact at the time of shift and the vibration on the mission side by the elasticity of the elastic body 58 so as not to be transmitted to the passengers' hands. To work.
【０００４】[0004]
上記防振ブッシュ５３の荷重−たわみ線図は図３に鎖線で表わされるが、振動 低減効果を向上させるためには、当該防振ブッシュのバネ定数を小さくしなけれ ばならない。しかしながらバネ定数を小さくし過ぎると、シフト操作時に加わる 荷重によってシフトレバーのストローク量が増大し、シフトフィーリングが悪化 する問題がある。 The load-deflection diagram of the vibration isolation bush 53 is shown by the chain line in FIG. 3, but in order to improve the vibration reduction effect, the spring constant of the vibration isolation bush must be reduced. However, if the spring constant is made too small, there is a problem that the stroke amount of the shift lever increases due to the load applied during the shift operation and the shift feeling deteriorates.
【０００５】[0005]
本考案は以上の点に鑑み、上記従来技術にみられる問題を解消すべく案出され たものであって、この目的を達成するため、インナースリーブとアウタースリー ブを蛇腹形の弾性体を介して接続し、前記蛇腹形の弾性体が所定の大きさの荷重 が入力したときに座屈するものである防振ブッシュを提供する。 In view of the above points, the present invention has been devised to solve the above-mentioned problems in the prior art.To achieve this object, the inner sleeve and the outer sleeve are provided with a bellows-shaped elastic body. A vibration-isolating bush, in which the bellows-shaped elastic body buckles when a load of a predetermined magnitude is input.
【０００６】[0006]
シフト開始時、蛇腹形の弾性体は座屈しておらず、よってバネ定数は高い状態 にある。この状態からシフトストロークが進んで所定の大きさの荷重が入力する と、蛇腹形の弾性体が座屈し、よってバネ定数が低くなる。 At the start of the shift, the bellows-shaped elastic body is not buckled, so the spring constant is high. When the shift stroke advances from this state and a load of a predetermined amount is input, the bellows-shaped elastic body buckles, and the spring constant decreases.
【０００７】[0007]
つぎに本考案の実施例を図面にしたがって説明する。 Next, an embodiment of the present invention will be described with reference to the drawings.
【０００８】 図１に示すように、インナースリーブ１とこのインナースリーブ１の外周側に 配置された二つのアウタースリーブ２がそれぞれ蛇腹形の弾性体３を介して接続 されており、この蛇腹形の弾性体３はそれぞれ所定の大きさの操作荷重Ｐ1 が入 力したときに座屈するようになっている。尚、この図１は、二つのアウタースリ ーブ２をそれぞれトランスミッション側のアームの嵌着部５２ａの内周側に嵌着 した状態を示しており、嵌着前の自由状態においては、図２に示すように、二つ のアウタースリーブ２が互いに軸方向に遠く離れている。As shown in FIG. 1, an inner sleeve 1 and two outer sleeves 2 arranged on the outer peripheral side of the inner sleeve 1 are connected via an elastic body 3 having a bellows shape. Each elastic body 3 is designed to buckle when an operation load P 1 of a predetermined magnitude is applied. It should be noted that FIG. 1 shows a state in which the two outer sleeves 2 are fitted to the inner peripheral side of the fitting portion 52a of the transmission side arm, respectively. As shown in FIG. 2, the two outer sleeves 2 are axially distant from each other.
【０００９】 上記構成の防振ブッシュにおいて、シフト開始時、蛇腹形の弾性体３は座屈し ておらず、よってバネ定数は高い状態にある。この状態は、図３に実線で示すよ うに、所定の大きさの操作荷重Ｐ1 が入力するまで続き、弾性体３はインナース リーブ１とアウタースリーブ２が変位するのに伴って圧縮せしめられる。そして シフトストロークが進んで所定の大きさの操作荷重Ｐ1 が入力すると、蛇腹の波 打ちが大きくなって弾性体３が座屈し、よって図３に実線で引き続き示したよう に、バネ定数が低くなる。したがって上記構成の防振ブッシュによれば、シフト 操作時におけるシフトレバーのストローク量を小さくし、シフトフィーリングを 悪化させることなしに、防振が必要な領域で低いバネ定数を得ることができ、大 きな振動低減効果を得ることができる。尚、蛇腹形の弾性体３の設置数は二つに 限られない。In the vibration-proof bush having the above-described structure, the bellows-shaped elastic body 3 is not buckled at the start of shift, and therefore the spring constant is high. As shown by the solid line in FIG. 3, this state continues until the operation load P 1 of a predetermined magnitude is input, and the elastic body 3 is compressed as the inner sleeve 1 and the outer sleeve 2 are displaced. . When the shift stroke advances and a predetermined amount of operating load P 1 is input, the corrugation of the bellows becomes large and the elastic body 3 buckles, so that the spring constant is low as shown by the solid line in FIG. Become. Therefore, according to the vibration-proof bushing having the above-described configuration, the stroke amount of the shift lever during the shift operation can be reduced, and a low spring constant can be obtained in a region requiring vibration-proof without deteriorating the shift feeling. A large vibration reduction effect can be obtained. The number of bellows-shaped elastic bodies 3 is not limited to two.
【００１０】[0010]
本考案は以下の効果を奏する。すなわち、インナースリーブとアウタースリー ブを蛇腹形の弾性体を介して接続し、当該防振ブッシュに所定の大きさの荷重が 入力したときにこの蛇腹形の弾性体を座屈させることにして、バネ定数を初め高 く、後に低く切り換えるようにしたために、シフト操作時におけるシフトレバー のストローク量を小さくし、シフトフィーリングを悪化させることなしに、防振 が必要な領域で低いバネ定数を得ることができ、大きな振動低減効果を得ること ができる。 The present invention has the following effects. That is, the inner sleeve and the outer sleeve are connected via a bellows-shaped elastic body, and the bellows-shaped elastic body is made to buckle when a load of a predetermined magnitude is input to the vibration-proof bush. Since the spring constant is switched to high initially and then low, the stroke amount of the shift lever during shift operation is reduced, and a low spring constant is obtained in a region where vibration isolation is required without deteriorating the shift feeling. It is possible to obtain a large vibration reduction effect.
【図１】本考案の実施例に係る防振ブッシュの装着状態
を示す半裁断面図FIG. 1 is a half sectional view showing a mounted state of an anti-vibration bush according to an embodiment of the present invention.
【図２】同防振ブッシュの自由状態を示す半裁断面図FIG. 2 is a half-cut sectional view showing the vibration-proof bush in a free state.
【図３】同防振ブッシュと従来例に係る防振ブッシュの
荷重−たわみ線図FIG. 3 is a load-deflection diagram of the vibration damping bush and the vibration damping bush according to the conventional example.
【図４】従来例に係る防振ブッシュを装着した手動変速
機の説明図FIG. 4 is an explanatory view of a manual transmission equipped with an anti-vibration bush according to a conventional example.
１ インナースリーブ ２ アウタースリーブ ３ 弾性体 ５２ａ 嵌着部 1 Inner sleeve 2 Outer sleeve 3 Elastic body 52a Fitting part
Claims (1)
ーブ（２）を蛇腹形の弾性体（３）を介して接続し、前
記蛇腹形の弾性体（３）が所定の大きさの荷重が入力し
たときに座屈するものである防振ブッシュ。1. An inner sleeve (1) and an outer sleeve (2) are connected via a bellows-shaped elastic body (3), and the bellows-shaped elastic body (3) receives a load of a predetermined size. Anti-vibration bushes that sometimes buckle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2653993U JPH0680044U (en) | 1993-04-23 | 1993-04-23 | Anti-vibration bush |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2653993U JPH0680044U (en) | 1993-04-23 | 1993-04-23 | Anti-vibration bush |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0680044U true JPH0680044U (en) | 1994-11-08 |
Family
ID=12196307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2653993U Pending JPH0680044U (en) | 1993-04-23 | 1993-04-23 | Anti-vibration bush |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0680044U (en) |
-
1993
- 1993-04-23 JP JP2653993U patent/JPH0680044U/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 19990119 |