PROBLEM TO BE SOLVED: To obtain a structure which can effectively enhance the rigidity of a housing element in a radial direction in a circumferential position which is deviated from attachment holes out of the housing elements having coupling flanges in which bearing holding holes for pressure-inserting an outer ring of a rolling bearing into the inside of a radial direction, and the attachment holes for making bolts penetrate or screwed to a plurality of points of external peripheral faces in a circumferential direction are formed.SOLUTION: Reinforcing ribs 42, 42 are arranged in only positions at four points in a circumferential direction being circumferential positions which are deviated from a pair of through-holes (attachment holes) 20a, 20a out of a front side face of a front-side housing element 17a. Arrangement directions of the reinforcing ribs 42, 42 are made to be radial directions with a center axis of a bearing holding hole 24a as a center.SELECTED DRAWING: Figure 2
【課題】径方向内側に転がり軸受の外輪を圧入する為の軸受保持孔を、外周面の円周方向複数箇所にボルトを挿通又は螺合する為の取付孔を形成した結合フランジを、それぞれ有するハウジング素子のうちで、これら各取付孔から外れた円周方向位置に於ける径方向の剛性を効果的に高められる構造を実現する。【解決手段】前側ハウジング素子17aの前側面のうち、1対の通孔(取付孔)20a、20aから外れた円周方向位置である、円周方向4箇所位置にのみ、補強リブ42、42を設ける。これら各補強リブ42、42の配設方向を、軸受保持孔24aの中心軸を中心とする放射方向とする。【選択図】図2
REDUCTION GEAR AND ELECTRIC POWER STEERING DEVICE
減速機及び電動式パワーステアリング装置
2017-02-02
Patent
Electronic Resource
Japanese
REDUCTION GEAR FOR ELECTRIC POWER STEERING DEVICE AND ELECTRIC POWER STEERING DEVICE
European Patent Office | 2016
|REDUCTION GEAR FOR ELECTRIC POWER STEERING DEVICE AND ELECTRIC POWER STEERING DEVICE
European Patent Office | 2016
|