JPS60201132A - Construction of mount rubber - Google Patents
Construction of mount rubberInfo
- Publication number
- JPS60201132A JPS60201132A JP5888284A JP5888284A JPS60201132A JP S60201132 A JPS60201132 A JP S60201132A JP 5888284 A JP5888284 A JP 5888284A JP 5888284 A JP5888284 A JP 5888284A JP S60201132 A JPS60201132 A JP S60201132A
- Authority
- JP
- Japan
- Prior art keywords
- mount rubber
- memory alloy
- vibration
- spring constant
- shape memory
- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
- F16F1/3615—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers with means for modifying the spring characteristic
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
- Springs (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の属する技術分野〕
本発明は、エンジンを車両に搭載するときに、そのエン
ジンを支えるマウントラバーの構造に関する。特に路面
状態を感知し形状記憶合金によってばね定数を変えるこ
とができるマウントラバーの構造に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of the Invention] The present invention relates to the structure of a mount rubber that supports an engine when the engine is mounted on a vehicle. In particular, it relates to the structure of a mount rubber that can sense road surface conditions and change the spring constant using a shape memory alloy.
車両にエンジンを搭載するときに、エンジンの振動をボ
デーに伝えないためにマウントラバーが用いられている
。このマウントラバーは耐油性あるいは振動減衰性のあ
る特殊ゴムで、またゴムの特性により剪断方向と圧縮方
向の特性が大幅に異なることを利用してマウントの３方
向に必要なばね定数を得る工夫がなされた形状のものが
使用されている。When mounting an engine on a vehicle, mount rubber is used to prevent engine vibrations from being transmitted to the body. This mount rubber is a special rubber with oil resistance and vibration damping properties, and the properties of the shear direction and the compression direction are significantly different depending on the characteristics of the rubber, so we have devised a way to obtain the necessary spring constant in the three directions of the mount. The shape that was created is used.
従ってマウントラバーそのもののばね定数は設計上エン
ジン懸架系に作用する加振力、すなわちエンジン自身が
発生ずる振動やエンジン外から発生ずるその他の装備品
の振動、あるいは路面状態によるボデーの前後振動また
はこの上下振動によつて生ずるエンジンの慣性力やエン
ジンの駆動反力を総合的に織り込み設定されたもので、
そのばね定数はかえることができないものである。Therefore, the spring constant of the mount rubber itself is determined by the excitation force acting on the engine suspension system, that is, the vibration generated by the engine itself, the vibration of other equipment generated from outside the engine, or the longitudinal vibration of the body due to road surface conditions. It is set by comprehensively taking into account the engine's inertia force caused by vertical vibration and the engine's drive reaction force.
The spring constant cannot be changed.
ところが実際の路上走行においては必ずしも理想的な路
面ばかりではなく、悪路もあり得ることから、走行時に
搭乗者に与える振動による乗心地を優先するか、悪路走
行におけるマウントラバーの寿命を優先するか、設計上
どちらかを犠牲にしており、またこの両者をある程度満
足させるためにはこのマウントラバーの構造を大型化し
なければならないなどの問題が残されている。However, in actual road driving, the road surface is not always ideal, and there may also be rough roads, so priority should be given to ride comfort due to vibrations given to the occupants while driving, or priority is given to the lifespan of the mount rubber when driving on rough roads. However, one or the other is sacrificed in terms of design, and in order to satisfy both to some extent, the structure of the mount rubber must be increased in size, and other problems remain.
本発明者はマウントラバーのそのもののばね定数は変え
られないが、このマウントラバーを保持する締付金具の
構造を工夫することによって最適なばね定数を得ること
ができることに着目し本発明を完成するにいたった。The present inventor completed the present invention by noting that although the spring constant of the mount rubber itself cannot be changed, it is possible to obtain an optimal spring constant by devising the structure of the fastening fitting that holds the mount rubber. It arrived.
本発明は、エンジンの振動によって与えられる乗心地と
、エンジンを支えるマウントラバーの寿命との両面を満
足させるために常に最適なばね定数を得ることのできる
マウントラバーの構造を提供することを目的とする。An object of the present invention is to provide a mount rubber structure that can always obtain an optimal spring constant in order to satisfy both the riding comfort provided by engine vibration and the life of the mount rubber that supports the engine. do.
本発明は、マウントラバーと、このマウントラバーの周
囲を締めつける締付金具とを備えたマウントラバーの構
造において、上記締付金具の少なくとも一部が形状記憶
合金により構成され、この形状記憶合金を加熱する電流
を与える電気回路手段を備えたことを特徴とする。The present invention provides a structure of a mount rubber including a mount rubber and a fastening fitting that tightens around the mount rubber, in which at least a part of the fastening fitting is made of a shape memory alloy, and the shape memory alloy is heated. The invention is characterized by comprising an electric circuit means for supplying a current.
本発明は、マウントラバーに搭載された物体の振動が所
定の闇値を超えたことを検出する手段を有し、この手段
に検出出力があるときには自動的に形状記憶合金を加熱
する手段を備えることによって、上記マウントラバーの
ばね定数を走行路面状態に応じて自動的に変えることが
できる。The present invention has means for detecting that the vibration of an object mounted on the mount rubber exceeds a predetermined darkness value, and means for automatically heating the shape memory alloy when the means has a detection output. This allows the spring constant of the mount rubber to be automatically changed depending on the road surface condition.
ここで検出する手段が検出する振動には、振動振幅、振
動加速度、振動方向の一つの情報またば一部」二の組合
せ情報を含む。The vibration detected by the detection means includes one or a combination of vibration amplitude, vibration acceleration, and vibration direction.
本発明に使用される形状記憶合金は、ある温度域におい
である形状を記憶させその温度域以外の温度域ではその
形状をどのような形にしてももとの温度域に戻せばその
形状はもとの形状に戻り、また塑性加工または熱処理な
どの特殊な処理を施すことによって高温側と低温側の形
状をそれぞれ記憶する可逆形状記憶効果を示す性質をも
っている合金である。The shape memory alloy used in the present invention memorizes a certain shape in a certain temperature range, and no matter what shape it takes in a temperature range other than that temperature range, the shape will be restored when it returns to the original temperature range. It is an alloy that exhibits a reversible shape memory effect that allows it to return to its original shape and memorize its shape on both the high temperature and low temperature sides when subjected to special treatments such as plastic working or heat treatment.
次に本発明実施例構造を図面に基づいて詳しく説明する
。Next, the structure of an embodiment of the present invention will be explained in detail based on the drawings.
第１図はエンジンのマウントラバーによる取付説明図、
第２図は本発明第一実施例マウントラバーの正面図、第
３図は本発明第一実施例の構成図、第４図は本発明第二
実施例の構成図である。Figure 1 is an explanatory diagram of the installation using the engine mount rubber.
FIG. 2 is a front view of a mount rubber according to the first embodiment of the present invention, FIG. 3 is a block diagram of the first embodiment of the present invention, and FIG. 4 is a block diagram of the second embodiment of the present invention.
一般には第１図に示すようにエンジン１は防振ゴム２を
介してシャーシに取付けられている。本発明第一実施例
は、第２図に示すように、マウントラバー３の両側に取
付は用ボルト付鋼板４が焼付けられ、このマウントラバ
ー３の外周に通常はある間隔をもって取付けられる締イ
１金具５と、この締付金具５を挟持する形状記憶合金製
締付具６を備え、第３図に示すようにこの形状記憶合金
製締付具６を加熱する発熱抵抗体７と、この発熱抵抗体
７の電源となるバッテリ８と、このバッテリ８からの電
流を断続するリレー９と、車両の振動加速度を信号とし
て取込み闇値と比較してその値によって上記リレー９の
開閉を指令するマイクロコンピュータ１０と、このマイ
クロコンピュータ１０に接続して振動加速度の闇値を記
憶する記憶回路１１と、振動加速度を検出する振動加速
度検出器１２によって構成されている。Generally, as shown in FIG. 1, an engine 1 is attached to a chassis via anti-vibration rubber 2. In the first embodiment of the present invention, as shown in FIG. 2, steel plates 4 with mounting bolts are baked on both sides of a mount rubber 3, and fasteners 1 are usually attached to the outer circumference of the mount rubber 3 at a certain interval. It includes a metal fitting 5, a shape memory alloy fastener 6 that holds the fastening metal 5, and a heat generating resistor 7 that heats the shape memory alloy fastener 6, as shown in FIG. A battery 8 that serves as a power source for the resistor 7, a relay 9 that intermittents the current from the battery 8, and a microcontroller that takes in the vibration acceleration of the vehicle as a signal, compares it with a dark value, and instructs the relay 9 to open or close based on that value. It is composed of a computer 10, a memory circuit 11 connected to the microcomputer 10 to store the dark value of vibration acceleration, and a vibration acceleration detector 12 for detecting vibration acceleration.
このように構成された本発明第一実施例の動作について
説明する。形状記憶合金製締付具６ば常温域において、
路面状態が良好である時のエンジン振動と乗心地を基に
定めたばね定数になるような締付力を得る長さを記憶し
、高温域においては、悪路走行時の振動と乗心地を基に
定めたばね定数になるような締付力を得る長さ、この実
施例では締付力を増してマウントラバー３のばね定数を
高めるように常温時よりも短い長さに記憶されている。The operation of the first embodiment of the present invention configured as described above will be explained. In the normal temperature range, the shape memory alloy fastener 6
Memorize the length to obtain the tightening force that will give the spring constant determined based on the engine vibration and ride comfort when the road surface condition is good, and memorize the length to obtain the tightening force that will give the spring constant determined based on the engine vibration and ride comfort when driving on rough roads. In this embodiment, the length is stored to be shorter than that at normal temperature so as to increase the tightening force and increase the spring constant of the mount rubber 3.
路面状態が良好であれば、振動加速度検出器１２から検
出される振動加速度信号が記憶回路１１を経てマイクロ
コンピュータ１０に入力されるが、マイクロコンピュー
タでは定められた闇値よりもその振動加速度が低いため
にリレー９に閉成の指令を出さず、従って発熱抵抗体７
は発熱せず、常温域が維持されるために形状記憶合金製
締付具６には変化がなくマウントラバー３のばね定数は
変わらない。If the road surface condition is good, the vibration acceleration signal detected from the vibration acceleration detector 12 is input to the microcomputer 10 via the memory circuit 11, but the vibration acceleration is lower than a predetermined dark value in the microcomputer. Therefore, the closing command is not issued to the relay 9, and therefore the heating resistor 7
does not generate heat and is maintained at room temperature, so the shape memory alloy fastener 6 remains unchanged and the spring constant of the mount rubber 3 remains unchanged.
車両が悪路に入ると、振動加速度検出器１２からの信号
が記憶回路１１を経てマイクロコンピュータ１０に送ら
れ、振動加速度の闇値以上であることが比較識別されて
、リレー９に電気信号を送り、リレー９は閉成されて、
バッテリ８から電流が流れ、発熱抵抗体７が加熱して形
状記憶合金製締付具６が高温になり、高温域で記憶した
長さに変化して締付金具を締めつけ、マウントラバー３
のばね定数を高める。When the vehicle enters a rough road, the signal from the vibration acceleration detector 12 is sent to the microcomputer 10 via the memory circuit 11, and it is compared and determined that the vibration acceleration is equal to or higher than the dark value, and an electric signal is sent to the relay 9. sending, relay 9 is closed,
Current flows from the battery 8, heats the heating resistor 7, and the shape memory alloy fastener 6 reaches a high temperature, changes to the memorized length in the high temperature range, tightens the fastener, and the mount rubber 3
Increase the spring constant.
車両走行中は常時上記の構成装置が働いており、路面状
態を常に検出してマウントラバー３のばね定数を最適値
に保たせることができる。While the vehicle is running, the above-mentioned component device is always in operation, and can constantly detect the road surface condition and maintain the spring constant of the mount rubber 3 at an optimum value.
次に第４図に示す本発明第二実施例について説明する。Next, a second embodiment of the present invention shown in FIG. 4 will be described.
この第二実施例では第一実施例の締イτｊ金具５そのも
のを形状記憶合金でリング状にしたもので、この締付金
具５ａは常温域では第一実施例同様路面状態が良好であ
るときに必要とするばね定数を得る内径が記憶され、高
温域では悪路において必要とするばね定数を得る内径、
この場合常温域よりも小さい内径が記憶されている。In this second embodiment, the fastening fitting 5a of the first embodiment itself is made into a ring shape using a shape memory alloy, and this fastening fitting 5a is used in the normal temperature range when the road surface condition is good as in the first embodiment. The inner diameter that provides the necessary spring constant is memorized, and in the high temperature range, the inner diameter that provides the necessary spring constant on rough roads is stored.
In this case, an inner diameter smaller than the normal temperature range is stored.
その他の構成と動作は第一実施例で説明した通りで、同
様に常時路面の状態を振動加速度検出器１２が検出し、
マウントラバー３のばね定数を最適値に保つようにコン
トロールすることができる。The other configuration and operation are as described in the first embodiment, and similarly, the vibration acceleration detector 12 constantly detects the road surface condition,
The spring constant of the mount rubber 3 can be controlled to be kept at an optimal value.
以上述べたように、本発明によればマウントラバーを保
持する締付金具に形状記憶合金を使用し、その形状記憶
合金を加熱する手段により上記締付金具の締付力を車両
の振動に応じて変えることができ、それに伴ってばね定
数がかわり、マウントラバーの寿命をのばすと同時に車
両の振動による乗心地を最良の状態にできるなどの優れ
た効果がある。As described above, according to the present invention, a shape memory alloy is used in the tightening fitting that holds the mount rubber, and the tightening force of the tightening fitting is adjusted according to the vibrations of the vehicle by means of heating the shape memory alloy. The spring constant changes accordingly, which has excellent effects such as extending the life of the mount rubber and optimizing the riding comfort due to vehicle vibrations.
第１図はエンジンのマウントラバーによる取付説明図。
第２図は本発明第一実施例マウントラバーの正面図。
第３図は本発明第一実施例の構成図。
第４図は本発明第二実施例の構成図。
」・・・エンジン、２・・・防振ゴム、３・・・マウン
トラバー、４・・・取付は用ボルト付鋼板、５．５ａ・
・・締（ｉＪ全金具６・・・形状記憶合金製締付具、７
・・・発熱抵抗体、８・・・バッテリ、９・・・リレー
、１０・・・マイクロコンピータ、１１・・・記憶回路
、１２・・・振動加速度検出器。
特許出願人 日野自動車工業株式会社
代理人 弁理士 井 出 直 孝Figure 1 is an explanatory diagram of mounting the engine using the mount rubber. FIG. 2 is a front view of the mount rubber according to the first embodiment of the present invention. FIG. 3 is a configuration diagram of the first embodiment of the present invention. FIG. 4 is a configuration diagram of a second embodiment of the present invention. ”...Engine, 2...Vibration isolating rubber, 3...Mount rubber, 4...Steel plate with bolts for installation, 5.5a.
...Tightening (iJ all metal fittings 6...shape memory alloy fasteners, 7
... Heating resistor, 8... Battery, 9... Relay, 10... Microcomputer, 11... Memory circuit, 12... Vibration acceleration detector. Patent Applicant Hino Motors Co., Ltd. Representative Patent Attorney Naotaka Ide
Claims (2)
の少なくとも一部が形状記憶合金により構成され、 この形状記憶合金を加熱する電流を与える電気回路手段
を備えたことを特徴とする マウントラバーの構造。(1) In a structure of a mount rubber including a mount rubber and a fastening fitting that tightens around the mount rubber, at least a part of the fastening fitting is made of a shape memory alloy, and the shape memory alloy is heated. A structure of a mount rubber characterized by being equipped with an electric circuit means for applying an electric current.
超えたことを検出する手段と、この手段に検出出力があ
るときには自動的に形状記憶合金を加熱する電流を与え
る手段とを含む特許請求の範囲第ｆ１１項に記載のマウ
ントラバーの構造。 （３ン 検出する手段が検出する振動には、振動振幅、
振動加速度、振動方向の一つの情報または一以上の組合
せ情報を含む特許請求の範囲第（２）項に記載のマウン
トラバーの構造。(2) The electric circuit means includes a means for detecting when the vibration of the object mounted on the mount rubber exceeds a predetermined darkness value, and a means for automatically heating the shape memory alloy when this means has a detection output. The structure of the mount rubber according to claim f11, comprising means for applying an electric current. (3) The vibration detected by the detection means includes vibration amplitude,
The structure of the mount rubber according to claim (2), which includes information on one or more of vibration acceleration and vibration direction, or a combination of one or more information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5888284A JPS60201132A (en) | 1984-03-26 | 1984-03-26 | Construction of mount rubber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5888284A JPS60201132A (en) | 1984-03-26 | 1984-03-26 | Construction of mount rubber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60201132A true JPS60201132A (en) | 1985-10-11 |
Family
ID=13097135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5888284A Pending JPS60201132A (en) | 1984-03-26 | 1984-03-26 | Construction of mount rubber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60201132A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2163781A1 (en) * | 2008-09-13 | 2010-03-17 | Jungheinrich Aktiengesellschaft | Spring arrangement |
| JP2021054172A (en) * | 2019-09-27 | 2021-04-08 | 株式会社Ｓｕｂａｒｕ | Power unit mount device |
-
1984
- 1984-03-26 JP JP5888284A patent/JPS60201132A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2163781A1 (en) * | 2008-09-13 | 2010-03-17 | Jungheinrich Aktiengesellschaft | Spring arrangement |
| JP2021054172A (en) * | 2019-09-27 | 2021-04-08 | 株式会社Ｓｕｂａｒｕ | Power unit mount device |
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