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公开(公告)号：US11472486B2
公开(公告)日：2022-10-18
申请号：US17114196
申请日：2020-12-07
Applicant: MAZDA MOTOR CORPORATION
Inventor： Kyohei Kuwada , Tsuneki Shimanaka
Abstract: Upper frames and a lower frame that connect a rear end of a coupled body composed of a side sill and a rear pillar and a rear side housing to each other are spaced apart in a vehicle up-down direction. An inclined angle at which a lower frame is inclined to be closer to a vehicle inner side toward a vehicle rear side is larger than inclined angles at which the upper frames are inclined to be closer to the vehicle inner side toward the rear side. A lower joined portion to which a rear end of the lower frame is joined is on a vehicle-width-direction inner side with respect to an upper joined portion in the rear side housing, which is composed of a single member including at least the lower frame rear-end joined portion, and the first and second upper frame rear-end joined portions, and extending therebetween.
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公开(公告)号：US11345295B2
公开(公告)日：2022-05-31
申请号：US16770933
申请日：2018-12-11
Applicant: MAZDA MOTOR CORPORATION
Inventor： Chikara Kawamura , Tsuyoshi Nishihara , Kazutaka Ishikura , Hiroaki Takeshita , Tsuneki Shimanaka , Taiki Yotsuyanagi , Yoshiaki Murakami
Abstract: An impact absorbing structure for a vehicle according to the present invention includes: a resin frame member extending in a vehicle front-rear direction and having an opening portion in a surface thereof on one side in a vehicle width direction; and a strut member disposed in the opening portion of the frame member. The frame member includes a frame body having the opening portion, and a rib protruding at least either upward or downward from the frame body and extending in the vehicle front-rear direction. The strut member is disposed between a pair of opening edges for defining an upper edge and a lower edge of the opening portion and at a position abuttable against the paired opening edges, when the frame member is deformed by input of a load at a time of oblique collision from upward or oblique collision from downward.
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公开(公告)号：US20180251088A1
公开(公告)日：2018-09-06
申请号：US15760620
申请日：2016-11-08
Applicant: MAZDA MOTOR CORPORATION
Inventor： Chikara Kawamura , Taiki Yotsuyanagi , Hiroaki Takeshita , Tsuyoshi Nishihara , Tsuneki Shimanaka , Takayuki Kimura , Yoshiaki Murakami
CPC classification number: B60R19/34 , B60R19/03 , B60R19/18 , B60R2019/1806 , B60Y2304/03 , B62D21/15 , B62D25/08 , F16F7/003 , F16F7/124 , F16F2224/0241
Abstract: An impact absorbing structure includes an impact absorbing member made of CFRP, and the impact absorbing member includes a pair of left and right side wall portions and upper and lower coupling wall portions each coupling the side wall portions. Each of the pair of side wall portions includes a plurality of curved portions. Each of the curved portions is formed such that a leftward/rightward direction depth thereof decreases toward a front side. Each of the pair of side wall portions includes: a plurality of first carbon fibers arranged to extend in a forward/rearward direction and constituting most of reinforced fibers contained in the side wall portion; and a plurality of second carbon fibers arranged to extend in a direction intersecting with the first carbon fibers. The plurality of second carbon fibers are arranged at both thickness direction end vicinity parts of each of the side wall portions.
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Patent Agency Ranking
公开(公告)号：US12233946B2
公开(公告)日：2025-02-25
申请号：US17903197
申请日：2022-09-06
Applicant: Mazda Motor Corporation
Inventor： Takuma Inami , Nobuyuki Nakayama , Hiroyuki Baba , Takashi Hirakawa , Hideaki Hoshuyama , Tsuneki Shimanaka
Abstract: To sufficiently improve the distortion stiffness of a vehicle body in a case in which no floor tunnel largely bulging upward from a floor panel is provided. A vehicle-body structure includes a floor panel constituting a floor of an occupant space including a seat on which a passenger is to sit, a cross member provided at a rear portion of the floor panel and extending in a vehicle width direction, a center frame disposed to be higher than and away from the floor panel at a vehicle-width-direction central portion of the occupant space and extending in a vehicle front-rear direction, and a connecting member connecting the cross member and a rear portion of the center frame.
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公开(公告)号：US11618399B2
公开(公告)日：2023-04-04
申请号：US17131965
申请日：2020-12-23
Applicant: MAZDA MOTOR CORPORATION
Inventor： Taiki Yotsuyanagi , Tsuyoshi Nishihara , Ryo Shimoda , Chikara Kawamura , Tsuneki Shimanaka , Kota Yoshida
Abstract: A shock absorbing member is provided having a sequential destruction capability and protection against electrolytic corrosion on fastening-fixing portions thereof to be fastened to a bumper reinforcement or a vehicle body. Embodiments include a shock absorbing member between a bumper reinforcement and a vehicle body, including a distal end portion fastened to the bumper reinforcement; a base end flange portion fastened to the vehicle body; and an absorbing member body extending in a vehicle front-rear direction and connecting the distal end portion and the base end flange portion. The absorbing member body includes a carbon fiber-glass reinforced plastic layer. Fastening-fixing portions of the distal end portion and the base end flange portion are composed of glass fiber reinforced plastic layers.
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公开(公告)号：US11511809B2
公开(公告)日：2022-11-29
申请号：US17356537
申请日：2021-06-24
Applicant: Mazda Motor Corporation
Inventor： Tsuneki Shimanaka
Abstract: A vehicle body structure includes: a first frame that is formed of a first material and has a closed cross section; and a second frame that is formed of a second material and has a closed cross section. The first frame and the second frame are aligned with each other in a vehicle longitudinal direction. The second frame has higher tensile strength and is lighter than the first frame. In a front cross-sectional view of the vehicle, a second center associated with the second frame is located on an outer side in a vehicle width direction from a first center associated with the first frame with respect to vehicle center.
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公开(公告)号：US11383769B2
公开(公告)日：2022-07-12
申请号：US17118266
申请日：2020-12-10
Applicant: MAZDA MOTOR CORPORATION
Inventor： Kyohei Kuwada , Tsuneki Shimanaka
Abstract: A rear vehicle-body structure for increasing support rigidity for a rear suspension and consequently increase steering stability. The rear vehicle-body structure includes a first frame extending to connect a rear end lower portion of a combined body composed of a side sill and a pillar and a lower arm front support portion of a rear side housing, and having therein a closed cross-sectional space; a second frame extending to connect a rear end lower portion of a floor tunnel located at a vehicle-width-direction center portion of a vehicle-body bottom portion and bulging toward a vehicle upper side in a vehicle front-rear direction and the lower arm front support portion and having therein a closed cross-sectional space; and a third frame extending to connect a rear end upper portion of the floor tunnel and the lower arm front support portion, and having therein a closed cross-sectional space.
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公开(公告)号：US11358650B2
公开(公告)日：2022-06-14
申请号：US17114279
申请日：2020-12-07
Applicant: MAZDA MOTOR CORPORATION
Inventor： Kyohei Kuwada , Tsuneki Shimanaka
Abstract: A rear vehicle-body structure of a vehicle capable of increasing the support rigidity of a rear suspension and the transmission efficiency of a rear-end collision load to the vehicle front side. A side sill has an upper closed cross-section portion. The upper closed cross-section portion includes a closed cross-sectional space extending in the vehicle front-rear direction. A linear connecting frame connecting a rear end of the upper closed cross-section portion to a rear side housing is between the rear end of the upper closed cross-section portion and the rear side housing. The connecting frame is inclined to be closer to a vehicle lower side as the connecting frame approaches the vehicle front side. The upper closed cross-section portion is inclined to be closer to an upper side as the upper closed cross-section portion approaches a vehicle rear side to correspond to an inclination angle of the connecting frame.
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