To ease impact and high frequency vibration with elements provided in a linear motion actuator without needing an additional device for controlling.SOLUTION: A linear motion actuator includes: a feed screw configured to be rotated; a nut member which has two end surfaces and is linearly moved along a feed screw axis direction as the feed screw rotates; a linear motion cylindrical member which is disposed around the nut member, has a length along an axial direction which is longer than a length of the nut member, and is linearly moved with the nut member; two annular members which are formed of a rigid material, respectively disposed so as to face the end surfaces of the nut member, engaged with the linear motion cylindrical member to transmit linear motion of the nut member to the linear motion cylindrical member; and two first annular buffer members each of which is formed of an elastomer material, disposed between the annular member and the end surface of the nut member, and compressed between the annular member and the end surface of the nut member.SELECTED DRAWING: Figure 1

    【課題】制御のための追加の装置が必要なく、直動アクチュエータに設けられる要素によって衝撃および高周波の振動を緩和する。【解決手段】直動アクチュエータは、回転させられる送りねじと、2つの端面を有しており、送りねじの回転に伴って、送りねじの軸線方向に沿って直進させられるナット部材と、ナット部材の周囲に配置され、軸線方向に沿った長さがナット部材の長さより大きく、ナット部材とともに直進させられる直動円筒部材と、剛性材料から形成され、ナット部材の端面に対向するようにそれぞれ配置され、直動円筒部材に係合し、ナット部材の直進運動を直動円筒部材に伝達する2つの円環部材と、エラストマー材料から形成され、円環部材とナット部材の端面との間に配置されて、円環部材とナット部材の端面との間で圧縮される円環状の2つの第1の緩衝部材とを備える。【選択図】図1


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    Title :

    LINEAR MOTION ACTUATOR AND ELECTROMAGNETIC SUSPENSION


    Additional title:

    直動アクチュエータおよび電磁サスペンション


    Contributors:

    Publication date :

    2024-12-26


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    F16H Getriebe , GEARING / B60G VEHICLE SUSPENSION ARRANGEMENTS , Radaufhängungen und Federungen für Fahrzeuge



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