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公开(公告)号：US12116044B2
公开(公告)日：2024-10-15
申请号：US17568702
申请日：2022-01-04
Inventor： Chikara Kawamura , Yuki Kodama , Kenji Nishida , Tetsuya Sugiyama , Koichi Hattori
IPC: B62D29/04
CPC classification number: B62D29/04
Abstract: Provided is a frame which is made of a fiber reinforced composite and where a bending strength and a vibration damping capability are compatible. The frame which is made of a fiber reinforced composite includes: a compressive wall part where a compressive stress occurs in a longitudinal direction of the frame when the frame receives a bending load in a normal direction perpendicularly intersecting the longitudinal direction; a side wall part extending in the normal direction and defining one of the corners with the compressive wall part; and a tension wall part which is away from the compressive wall part and extends in the longitudinal direction, and where a tensile stress occurs in the longitudinal direction when the frame receives the bending load. The tension wall part has a loss coefficient which is larger than a loss coefficient of the compressive wall part by 0.005 or more.
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公开(公告)号：US10252750B2
公开(公告)日：2019-04-09
申请号：US15535922
申请日：2015-12-14
Applicant: MAZDA MOTOR CORPORATION
Inventor： Yuki Kodama , Masanori Honda , Chikara Kawamura
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：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：US12119506B2
公开(公告)日：2024-10-15
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: H01M10/0525 , H01M50/20 , H01M50/531 , H01M50/543 , H01M50/547
CPC classification number: H01M50/20 , H01M10/0525 , H01M50/531 , H01M50/543 , H01M50/547 , H01M2220/20
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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公开(公告)号：US10604094B2
公开(公告)日：2020-03-31
申请号：US15760195
申请日：2016-11-08
Applicant: MAZDA MOTOR CORPORATION
Inventor： Chikara Kawamura , Tsuneki Shimanaka , Hiroaki Takeshita , Tsuyoshi Nishihara , Takayuki Kimura , Kazutaka Ishikura
Abstract: An impact absorbing member structure of a vehicle includes: a pair of left and right rear side frames; a pair of left and right crash cans containing a plurality of first carbon fibers arranged so as to continuously extend in a forward/rearward direction; and a bumper reinforcement attached to tip end portions of the pair of rear side frames through the pair of crash cans. Each of the crash cans is formed as an open-section member including: a side wall portion extending in the forward/rearward direction; and a tip end wall portion continuous with the side wall portion and including an attaching portion to which the bumper reinforcement is attached.
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Patent Agency Ranking
公开(公告)号：US09701344B2
公开(公告)日：2017-07-11
申请号：US15042602
申请日：2016-02-12
Applicant: MAZDA MOTOR CORPORATION
Inventor： Yuki Kodama , Chikara Kawamura , Masanori Honda
IPC: B62D21/15
CPC classification number: B62D21/152
Abstract: A bead portion is provided at a compression-side wall portion to be recessed toward an inside of a main closed cross section. A first reinforcing member is provided in the closed cross section and joined to a tension-side wall portion so as to form a first sub cross section extending in a longitudinal direction between the tension-side wall portion and the first reinforcing member. A second reinforcing member is provided in the closed cross section and joined to a portion of the compression-side wall portion where the bead portion is provided so as to form a second sub cross section extending vertically between the portion of the compression-side wall portion and the second reinforcing member. The first and second reinforcing members are configured to be spaced apart from each other.
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公开(公告)号：US20140354009A1
公开(公告)日：2014-12-04
申请号：US14370274
申请日：2013-01-16
Applicant: MAZDA MOTOR CORPORATION
Inventor： Masanori Honda , Chikara Kawamura , Sakayu Terada
IPC: B62D25/04
Abstract: A frame body (1) has a closed cross-section formed by a first surface (11), a second surface (12) wider than the first surface (11), and two side surfaces (13), and each of the side surfaces (13) has a single bent part (14) or two or more bent parts (14). In the cross-section of the frame body (1), the first surface (11) and an outer part (13a) of the side surface (13) form an angle of approximately 90 degrees or larger than 90 degrees inside the closed cross-section, and a specific bent part which is the single bent part (14) or one of the bent parts (14) closest to the second surface (12) is bent to protrude inward of the closed cross-section.
Abstract translation: 框架体（1）具有由第一表面（11），比第一表面（11）宽的第二表面（12）和两个侧表面（13）形成的封闭横截面，并且每个侧表面 （13）具有单个弯曲部分（14）或两个或更多个弯曲部分（14）。 在框架体（1）的横截面中，侧面（13）的第一表面（11）和外部（13a）在闭合截面内形成大约90度或大于90度的角度， 并且作为单个弯曲部（14）的特定的弯曲部或与最靠近第二面（12）的弯曲部（14）中的一个弯曲而向封闭截面的内侧突出。
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公开(公告)号：US11891122B2
公开(公告)日：2024-02-06
申请号：US17569087
申请日：2022-01-05
Inventor： Chikara Kawamura , Tetsuya Sugiyama
CPC classification number: B62D29/043 , B60R19/18 , B62D25/025 , B62D25/04 , B60R2019/1853 , B62D21/152
Abstract: Provided is a frame which is made of a fiber reinforced composite and has an increased bending strength by suppressing occurrence of buckling. The frame which is made of a fiber reinforced composite includes: a compressive wall part where a compressive stress occurs in a longitudinal direction of the frame when the frame receives a bending load in a normal direction perpendicularly intersecting the longitudinal direction; and a side wall part extending in the normal direction and defining one of corners with the compressive wall part. The compressive wall part includes a longitudinal alignment layer having reinforcement fibers aligned in the longitudinal direction. The side wall part has a surface section composed of a normal directional alignment layer having reinforcement fibers aligned in a direction different from the longitudinal direction, and serving as a differential alignment layer.
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公开(公告)号：US20230311998A1
公开(公告)日：2023-10-05
申请号：US18155561
申请日：2023-01-17
Applicant: MAZDA MOTOR CORPORATION
Inventor： Isamu KIZAKI , Takuto Fukushima , Masanori Honda , Chikara Kawamura
CPC classification number: B62D21/157 , B62D21/03 , B62D25/025
Abstract: A side sill constituting a vehicle body comprises a side sill outer and a side sill inner. Each of an upper-side side face portion (upper face portion) and a lower-side side face portion (lower face portion) of the side sill inner comprises a second bending portion (bending portion) being formed by each of the upper face portion and the lower face portion bent toward an inside of the side sill, an upper-side slant face portion and a lower-side slant portion which respectively extend toward the side sill outer in an oblique direction such that a width, in a vertical direction, of the side sill inner gradually increases, and a second upper face portion and a second lower face portion (vehicle-width-direction face portions) which respectively extend in a vehicle width direction toward an inward side, in the vehicle width direction, from the second bending portion.
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公开(公告)号：US20230311997A1
公开(公告)日：2023-10-05
申请号：US18154645
申请日：2023-01-13
Applicant: MAZDA MOTOR CORPORATION
Inventor： Isamu KIZAKI , Takuto Fukushima , Masanori Honda , Chikara Kawamura
CPC classification number: B62D21/157 , B62D25/025
Abstract: A side sill comprises a side sill outer and a side sill inner. Each of an upper-side side face portion (upper face portion) and a lower-side side face portion (lower face portion) of the side sill outer comprises a first bending portion bent toward an inside of the side sill. The side sill inner comprises an upper-side side face portion with a first upper face portion, an upper-side slant face portion and a second upper face portion and a lower-side side face portion with a first lower face portion, a lower-side slant face portion and a second lower face portion. The side sill inner comprises a pair of upper-and-lower second bending portions which are bent toward an inside of the side sill at respective positions between the second upper face portion and the upper-side slant face portion and between the second lower face portion and the lower-side slant face portion.
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