公开(公告)号：US20190291524A1

公开(公告)日：2019-09-26

申请号：US16362358

申请日：2019-03-22

Applicant: MAZDA MOTOR CORPORATION

Inventor： Shuhei NISHIDA ,  Yoshiatsu KUGA ,  Masaru CHIKITA ,  Hiroyuki TAKAHASHI

IPC: B60G7/00 ,  B62D35/02

Abstract: A torsion beam type of rear suspension comprising a pair of right-and-left trailing arms and a torsion beam connecting the trailing arms is provided. A floor under cover for airflow straightening is attached to a portion of a vehicle body in front of the rear suspension so as to cover a vehicle-body lower face. A arm cover is attached to a lower portion of the trailing arm so as to cover a lower face of the trailing arm. The arm cover is provided with an arm-cover enlarged portion which is configured to protrude outwardly, in a vehicle width direction, from the trailing arm in a vehicle bottom-face view. The floor under cover is provided with a floor-under-cover enlarged portion such that a rear end portion of the floor under cover faces closely to a front edge of the arm-cover enlarged portion.

公开(公告)号：US20210008949A1

公开(公告)日：2021-01-14

申请号：US16497579

申请日：2018-02-27

Applicant: MAZDA MOTOR CORPORATION ,  Y-TEC CORPORATION

Inventor： Hiroyuki TAKAHASHI ,  Hideaki KAWAGUCHI ,  Masayuki JOBIRA ,  Yuya YAMANAKA

IPC: B60G21/05 ,  B60G7/00

Abstract: The thickness of one of a pair of panels (an inner panel (20) and an outer panel (30)) of each trailing arm (12) is greater than the thickness of the other panel, and a rear wheel support unit (an axle unit (51)) configured to support each rear wheel is coupled to one of the pair of panels (the inner panel (20) and the outer panel (30)).

公开(公告)号：US20190291783A1

公开(公告)日：2019-09-26

申请号：US16362164

申请日：2019-03-22

Applicant: MAZDA MOTOR CORPORATION

Inventor： Shuhei NISHIDA ,  Yoshiatsu KUGA ,  Hiroyuki TAKAHASHI ,  Yosuke FUKAMACHI ,  Satoshi OKAMOTO

IPC: B62D21/15 ,  B60G7/00 ,  B60G21/00 ,  B60G21/10 ,  B60G1/00

Abstract: An arm cover comprises a main part and a front part. These parts are configured such that when the rear suspension takes a standard vehicle-weight position, these parts are respectively inclined rearwardly and downwardly, wherein an angle of inclination of the inclined front part is smaller than that of the inclined main part. When the rear suspension takes the standard vehicle-weight position, a front edge of the front part is located at a higher level than a bottom face portion of a under cover, and when the rear suspension takes a rebound position, the front edge of the front part is located at a position which is higher than a level of the bottom face portion of the under cover and close to a rear end portion of the under cover.

公开(公告)号：US20240092130A1

公开(公告)日：2024-03-21

申请号：US18173201

申请日：2023-02-23

Applicant: MAZDA MOTOR CORPORATION

Inventor： Shohei YOSHIDA ,  Koshi TAKAHASHI ,  Hiroyuki TAKAHASHI ,  Kota OKANO ,  Yosuke SAWADA ,  Hiromasa HONJI ,  Kosuke MUKAIGAWA ,  Ichiro TANABE ,  Ryota HANATE

IPC: B60G7/00 ,  B60G7/02 ,  B60G13/00

CPC classification number: B60G7/001 ,  B60G7/008 ,  B60G7/02 ,  B60G13/003 ,  B60G13/005 ,  B60G2206/01 ,  B60G2206/81022

Abstract: A front suspension device comprises a suspension arm, one end of which has a front-wheel support portion to support a front wheel of a vehicle and the other end of which is positioned on an inward side, in a vehicle width direction, of the front-wheel support portion and has a vehicle-body attachment portion to be attached to a vehicle-body member of the vehicle and a damper supported at a damper support portion which is provided at a portion of the suspension arm which is positioned in the vicinity of the front-wheel support portion at a lower portion thereof and connected to the vehicle-body member at an upper portion thereof. The damper support portion of the suspension arm has a breakage ease portion to cause breakage of the suspension arm.

公开(公告)号：US20190030978A1

公开(公告)日：2019-01-31

申请号：US16022808

申请日：2018-06-29

Applicant: Y-TEC CORPORATION ,  MAZDA MOTOR CORPORATION

Inventor： Kazuhiro NISHIMURA ,  Masayuki JOBIRA ,  Hiroyuki TAKAHASHI ,  Hideaki KAWAGUCHI ,  Nobuyuki NAKADO ,  Shun KUWAKO

IPC: B60G21/05 ,  B60B35/04

Abstract: A torsion beam of a vehicle torsion beam suspension has a closed cross section. A beam center portion has an inverse substantially v-shaped cross section or a substantially v-shaped cross section. Circumference increasing portions having a longer circumferential length toward the beam ends are disposed at opposite sides of the beam center portion. Each circumference increasing portion has a beam width that is a width in the fore and aft direction of a vehicle body, the beam width gradually increasing toward a beam end, and increasing at a higher rate as a position of the beam width is closer to the beam end.