TELESCOPIC ACTUATOR

• Main Author: WATANABE KATSUJI
• Format: Patent
• Language: English; Japanese
• Published: 04.04.2016
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS; LIGHTING; MEANS FOR DAMPING VIBRATION; MECHANICAL ENGINEERING; MOTOR VEHICLES; PERFORMING OPERATIONS; SHOCK-ABSORBERS; SPRINGS; THERMAL INSULATION IN GENERAL; TRAILERS; TRANSPORTING; WEAPONS

PROBLEM TO BE SOLVED: To reduce abnormal noise and sound caused by wedge effect occurring on a thread surface of a slide portion between a feed screw shaft and a feed nut.SOLUTION: A telescopic actuator includes: a housing 30 which slidably holds an output rod 32 and restricts rotation of the output rod 32 in a circumferential direction; an end member 25a which connects the housing 30 with a vehicle body through a vehicle body side rubber bush joint 26a; and an end member 25b which connects the output rod 32 with a knuckle through a knuckle side rubber bush joint 26b. A rotation allowable part 31, which allows the housing 30 to rotate around an axis line L of the housing 30 only by a predetermined angle in the circumferential direction, is provided between the housing 30 and the vehicle body side rubber bush joint 26a.SELECTED DRAWING: Figure 3 【課題】送りねじ軸と送りナットとの摺動部位のねじ面に発生するくさび効果による異音や騒音等の発生を低減すること。【解決手段】出力ロッド３２を摺動可能に保持すると共に、出力ロッド３２の周方向への回転を規制するハウジング３０と、車体側のゴムブッシュジョイント２６ａを介して、ハウジング３０と車体とを接続するエンド部材２５ａと、ナックル側のゴムブッシュジョイント２６ｂを介して、出力ロッド３２とナックルとを接続するエンド部材２５ｂとを備え、ハウジング３０と車体側のゴムブッシュジョイント２６ａとの間には、ハウジング３０の軸線Ｌを回動中心としてハウジング３０が周方向へ所定角度だけ回動することを許容する回動許容部３１が設けられる。【選択図】図３