JPH0217229Y2

JPH0217229Y2 -

Info

Publication number: JPH0217229Y2
Application number: JP1983035339U
Authority: JP
Priority date: 1983-03-11
Filing date: 1983-03-11
Publication date: 1990-05-14
Also published as: JPS59141249U

Description

【考案の詳細な説明】この考案は、オートバイ等のエンジンの懸架装
置の改良に関する。[Detailed Description of the Invention] This invention relates to an improvement of a suspension system for an engine such as a motorcycle.

オートバイ等のエンジンを車体に懸架する場合
に、一般に、弾性体を介在させて懸架し、エンジ
ンを車体に対して浮動的にして、エンジンの振動
が車体に伝わることを緩和する構造をとつてい
る。一般には、エンジンケースのボスに円筒状の
弾性体を圧入し、弾性体のインナープレートに通
した支軸を機体に締着する構造をとつている。そ
して、どの程度エンジンを浮動的にするかは、弾
性体の柔かさの設定と、弾性体の外周面に軸方向
に複数の溝を設けて、弾性体の変形の大きさを設
定することによつて定めている。ところが、弾性
体の一定個所に荷重が集中すると、その部分の弾
性力が次第に減少して、振動の吸収ができなくな
る不都合が生じる。 When the engine of a motorcycle or other vehicle is suspended on the vehicle body, it is generally suspended with an elastic body interposed between the engine and the engine, which makes the engine floating relative to the vehicle body, thereby mitigating the transmission of engine vibrations to the vehicle body. . Generally, a cylindrical elastic body is press-fitted into the boss of the engine case, and a support shaft that passes through the inner plate of the elastic body is fastened to the fuselage. The degree to which the engine is made to float is determined by setting the softness of the elastic body, and by providing multiple grooves in the axial direction on the outer circumferential surface of the elastic body, and by setting the degree of deformation of the elastic body. It is determined accordingly. However, when a load is concentrated on a certain part of the elastic body, the elastic force of that part gradually decreases, causing the inconvenience that vibrations cannot be absorbed.

この考案は、かかる点に鑑み改善したもので、
以下本考案を図面に示す実施例について説明す
る。 This idea is an improvement based on these points.
Embodiments of the present invention shown in the drawings will be described below.

エンジンケース１の所定位置に設けたボス２
に、筒状の弾性体３を圧入する。弾性体３は、イ
ンナープレート４が一体にして成形してあつて、
インナープレート４に支軸５を通し、支軸５は機
体６に締着する。こうして、エンジンケース１を
弾性体３によつて浮動的にして、機体６に懸架す
る。ところで、筒状の弾性体３の外面には、複数
の波形溝７を設ける。 Boss 2 provided at a predetermined position on engine case 1
A cylindrical elastic body 3 is press-fitted into. The elastic body 3 is integrally molded with the inner plate 4,
A support shaft 5 is passed through the inner plate 4, and the support shaft 5 is fastened to the body 6. In this way, the engine case 1 is made floating by the elastic body 3 and suspended on the fuselage 6. Incidentally, a plurality of wave-shaped grooves 7 are provided on the outer surface of the cylindrical elastic body 3.

しかして、エンジンケース１は運転に伴つて振
動を発生するが、弾性体３でこの振動が吸収さ
れ、機体６にエンジンケース１の振動が伝わるこ
とが緩和される。弾性体３にはその外面にほぼ軸
線方向に延びる幅狭の複数の波形溝７が設けてあ
るので、変形量が大きく、振動の吸収効果が大き
い。又、荷重が一方向に集中しても、複数の波形
溝７で、溝が波形にしてあつて、必ず波形溝７の
両側で荷重を受けるので、集中荷重が分散でき
て、弾性体３の疲労は少くできる。 Thus, although the engine case 1 generates vibrations during operation, this vibration is absorbed by the elastic body 3, and transmission of the vibrations of the engine case 1 to the aircraft body 6 is alleviated. Since the elastic body 3 is provided with a plurality of narrow wave-shaped grooves 7 extending substantially in the axial direction on its outer surface, the amount of deformation is large and the vibration absorption effect is large. Furthermore, even if the load is concentrated in one direction, the plurality of corrugated grooves 7 are corrugated and the load is always received on both sides of the corrugated grooves 7, so the concentrated load can be dispersed and the elastic body 3 You can reduce fatigue.

以上説明したように、この考案は、エンジンケ
ースに設けたボスに、筒状の弾性体を圧入し、弾
性体のインナープレートに通した支軸を機体に締
着して、機体にエンジンケースを浮動的に懸架す
るものに於て、筒状の弾性体の外面にほぼ軸線方
向に延びる幅狭の複数の波形溝を設けたので、波
形溝によつて弾性体の変形量を大きくできて、振
動の吸収効果を大きくできる。そして、集中荷重
は、必ず波形溝の両側に分担させることができ
て、集中荷重の分散ができ、弾性体の疲労を少く
できるので、耐久性あるものとすることができ、
振動の吸収効果が持続する。 As explained above, this idea involves press-fitting a cylindrical elastic body into the boss provided in the engine case, tightening the support shaft that passes through the inner plate of the elastic body to the fuselage, and attaching the engine case to the fuselage. In a floating suspension system, a plurality of narrow wavy grooves extending approximately in the axial direction are provided on the outer surface of the cylindrical elastic body, so that the amount of deformation of the elastic body can be increased by the wavy grooves. The vibration absorption effect can be increased. In addition, the concentrated load can be distributed to both sides of the corrugated groove, and the concentrated load can be dispersed and the fatigue of the elastic body can be reduced, so it can be made durable.
The vibration absorption effect lasts.

[Brief explanation of the drawing]

図は本考案の一実施例を示し、第１図は使用状
態の縦断面図、第２図は弾性体の縦断面図、第３
図は同側面図、第４図は同正面図である。１……エンジンケース、２……ボス、３……弾
性体、４……インナープレート、５……支軸、６
……機体、７……波形溝。 The figures show one embodiment of the present invention, in which Fig. 1 is a longitudinal sectional view of the used state, Fig. 2 is a longitudinal sectional view of the elastic body, and Fig. 3 is a longitudinal sectional view of the elastic body.
The figure is a side view of the same, and FIG. 4 is a front view of the same. 1... Engine case, 2... Boss, 3... Elastic body, 4... Inner plate, 5... Support shaft, 6
... Airframe, 7 ... Wave groove.

Claims

[Scope of utility model registration request]

A cylindrical elastic body is press-fitted into a boss provided in the engine case, and a support shaft passed through the inner plate of the elastic body is fastened to the body to floatingly suspend the engine case on the body. An engine suspension system characterized in that a plurality of narrow wave-shaped grooves extending substantially in the axial direction are provided on the outer surface of a cylindrical elastic body.