SUB-FRAME STRUCTURE FOR FRONT SUSPENSION

• Main Authors: ASANO NOBUYOSHI, TAKAHARA YASUNORI, KUROHARA FUMIHIRO, KIDO HIROTO, OKAMOTO HIROYUKI
• Format: Patent
• Language: English; Japanese
• Published: 15.02.2021
• Subjects: LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS; MOTOR VEHICLES; PERFORMING OPERATIONS; TRAILERS; TRANSPORTING

To provide a sub-frame structure for a front suspension, by which the sub-frame and a vehicle drive device are guided downward after separation of the rear part of the sub-frame resulting from front collision, without involving a weight increase and an increase of the number of components even in a case where the rear part of the sub-frame cannot be mounted on an inclining part of a body.SOLUTION: A sub-frame 30 for mount-supporting a vehicle drive device is provided. A rear part 62 of the sub-frame 30 is mounted on the underside of a vehicle body 9 via a fastening member 76. A configuration is made for the fastening of the sub-frame 30 and the fastening member 76 such that the rear part of the sub-frame 30 is separated when collision load is applied to the sub-frame 30 toward the rear of the vehicle. A guide portion 62d, which guides the sub-frame 30 downward by coming into contact with the fastening member 76 after separated from the fastening member 76, is integrally formed with the rear part of the sub-frame 30.SELECTED DRAWING: Figure 3 【課題】サブフレーム後部がボディの傾斜部に取付けられない場合でも、重量増加や部品点数の増加を招かず、前突によるサブフレーム後部の離脱後に、サブフレームと車両駆動装置とを下方に案内させるフロントサスペンションのサブフレーム構造を提供する。【解決手段】車両駆動装置をマウント支持するサブフレーム３０を設け、サブフレーム３０の後部６２が車体９下部に締結部材７６を介して取付けられ、サブフレーム３０と締結部材７６との締結は、サブフレーム３０に対して車両後方側への衝突荷重が作用した際に、サブフレーム３０後部が離脱されるように構成され、サブフレーム３０後部に、締結部材７６との離脱後に、締結部材７６と当接してサブフレーム３０を下方に案内する案内ガイド部６２ｄが一体形成されたことを特徴とする。【選択図】図３