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公开(公告)号：US20180362087A1
公开(公告)日：2018-12-20
申请号：US15535922
申请日：2015-12-14
Applicant: MAZDA MOTOR CORPORATION
Inventor： Yuki KODAMA , Masanori HONDA , Chikara KAWAMURA
CPC classification number: B62D21/152 , B62D21/02 , B62D25/082
Abstract: Provided is a front side frame 2, comprising: a main frame 201; and reinforcing members 30, 40, 50 disposed inside the main frame 2, wherein the reinforcing member 30 includes partition wall portions 31b, 32d, 32e dividing a main closed cross-section C_m of the main frame 201 into a plurality of sub closed-cross sections c, the first to third partition wall portions 31b, 32d, 32e being respectively formed with compression-side ridges 31s, 32s, 32u vertically facing each other and able to come into contact with each other in a deformation of the front side frame 2, and tension-side ridges 31t, 32t, 32v arranged in the same manner.
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公开(公告)号：US20230332633A1
公开(公告)日：2023-10-19
申请号：US18179938
申请日：2023-03-07
Applicant: MAZDA MOTOR CORPORATION
Inventor： Kenji NISHIDA , Kenichi YAMAMOTO , Chikara KAWAMURA
CPC classification number: F16B5/0208 , F16B35/00
Abstract: An outer member, an inner member, and an inside fixing member overlap each other and fastened together by a fastening member. The outer member is made of fiber reinforced resin, and fibers contained in the fiber reinforced resin-made outer member are arranged in a direction crossing the above-described overlapping direction. A bolt of the fastening member comprises a conical (truncated cone-shaped) middle portion which is poisoned between a head portion and a shaft portion. In a case where the outer member and the bolt are offset from each other in a radial direction of a through hole of the outer member, the conical middle portion partially contacts an edge portion of the through hole and compress a contacted portion of the outer member in the overlapping direction.
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公开(公告)号：US20190270420A1
公开(公告)日：2019-09-05
申请号：US16344883
申请日：2017-10-24
Applicant: MAZDA MOTOR CORPORATION
Inventor： Chikara KAWAMURA
Abstract: Each impact-absorbing member has an open cross-sectional shape that is open to a first side of a vehicle width direction. Each impact-absorbing member includes an upper wall, a lower wall, a side wall extending between the upper wall and the lower wall, an upper flange portion extending upward from the upper wall, and a lower flange portion extending downward from the lower wall. Curved portions curved in the vehicle width direction in a protruding manner are formed in the side wall. The upper wall and the lower wall include a plurality of plate-shaped flat portions adjacent in the vehicle width direction, and step portions connecting the adjacent flat portions while forming a step in a vertical direction, respectively.
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公开(公告)号：US20240375717A1
公开(公告)日：2024-11-14
申请号：US18641816
申请日：2024-04-22
Applicant: MAZDA MOTOR CORPORATION
Inventor： Chikara KAWAMURA , Kenichi YAMAMOTO , Masanori HONDA , Toshiyuki GENDO , Tetsuya SUGIYAMA , Masaki SHIMADA , Masumi HASEGAWA , Koichi HAMADA
Abstract: A vehicle frame includes an elongated main body member, a reinforcing member along the main body member, and an adhesive layer that joins the main body member and the reinforcing member. The main body member includes a main body first wall portion and two main body side wall portions. The reinforcing member includes a reinforcing first wall portion and two reinforcing side wall portions. The adhesive layer is formed such that a thickness between the main body side wall portion and the reinforcing side wall portion at a reinforcing side end portion is larger than a thickness between the main body first wall portion and the reinforcing first wall portion.
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公开(公告)号：US20220274653A1
公开(公告)日：2022-09-01
申请号：US17590821
申请日：2022-02-02
Applicant: Mazda Motor Corporation
Inventor： Kenji NISHIDA , Chikara KAWAMURA
Abstract: A front body structure of a vehicle includes a dash member that extends in a vehicle width direction and separates a vehicle interior from an engine room, a pair of left and right front side frames that extend from left and right end portions of the dash member, and a pair of left and right suspension towers that are fixed to the pair of front side frames and support the upper portions of dampers of a suspension device. A first coupling member couples the dash member to the suspension towers. The first coupling member has a reinforced layer portion made of fiber reinforced plastic in which fibers are impregnated with a synthetic resin material. The fibers of the reinforced layer portion are oriented so that more fibers extend in a longitudinal direction than extend in directions other than the longitudinal direction.
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Patent Agency Ranking
公开(公告)号：US20220274652A1
公开(公告)日：2022-09-01
申请号：US17590819
申请日：2022-02-02
Applicant: Mazda Motor Corporation
Inventor： Kenji NISHIDA , Chikara KAWAMURA
Abstract: A body structure of a vehicle includes a coupling member made of fiber reinforced plastic including fibers impregnated with synthetic resin and a pair of rear fixing members that have a bending rigidity higher than the coupling member and fix both end portions in the longitudinal direction of the coupling member to a vehicle body. Boundary portions between the pair of fixing members and the coupling member are formed in both end portions in the longitudinal direction. A distance between the boundary portions on the rear side is different from that between the boundary portions on the front side that extend along neutral axes defined by the lines of intersection between the neutral plane of bending moments of the coupling member and the lateral cross sections of the coupling member when a bending load is input through the pair of rear fixing members to the coupling member.
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公开(公告)号：US20210162939A1
公开(公告)日：2021-06-03
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：US20230312019A1
公开(公告)日：2023-10-05
申请号：US18153837
申请日：2023-01-12
Applicant: MAZDA MOTOR CORPORATION
Inventor： Isamu KIZAKI , Takuto FUKUSHIMA , Masanori HONDA , Chikara KAWAMURA
CPC classification number: B62D25/2036 , B62D21/15
Abstract: A lower vehicle-body structure of a vehicle is provided with a frame member having a closed-cross section. The frame member comprises a first portion and a second portion. The first portion comprises a compression face portion and a pair of side face portions. The side face portion comprises a bending portion, a compression-side area which is positioned on a side of the compression face portion relative to the bending portion and where a compressive stress is generated when the bending load is applied, and a tension-side area which is positioned on a side away from the compression face portion relative to the bending portion and where a tensile stress is generated when the bending load is applied. The compression-side area is configured to have higher rigidity than the tension-side area.
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公开(公告)号：US20210213899A1
公开(公告)日：2021-07-15
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：US20210202924A1
公开(公告)日：2021-07-01
申请号：US17024334
申请日：2020-09-17
Applicant: MAZDA MOTOR CORPORATION
Inventor： Wataru MASUDA , Teruhiko HANAOKA , Toshiki TAKAHASHI , Chikara KAWAMURA , Masanori HONDA
IPC: H01M2/10 , H01M10/0525 , H01M2/26 , H01M2/30
Abstract: A lithium-ion battery device comprises a housing, a battery cell stored inside the housing, and an adjacent member provided adjacently to and on a rearward side, in a vehicle longitudinal direction, of the battery cell. The battery cell comprises a cell case, an electrode body stored inside the cell case, and a pair of terminals. The cell case includes a first main face and a second main face which face to each other in the vehicle longitudinal direction. At least two gap-forming portions which respectively have a smaller area than the second main face and have a specified thickness of the vehicle longitudinal direction are arranged between the second main face and the adjacent member. The two gap-forming portions are provided to be spaced apart from each other in an inter-terminal direction of the battery cell.
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