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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：US10214244B2
公开(公告)日：2019-02-26
申请号：US15658913
申请日：2017-07-25
Applicant: MAZDA MOTOR CORPORATION
Inventor： Takehiro Kamei , Masanobu Hanazaki , Chikara Kawamura , Masaki Motoki
Abstract: There are provided an outer panel, an inner panel, a second reinforcement provided in the main closed-cross section and cooperates with the outer panel to form a sub closed-cross section extending longitudinally, a bead portion formed at a portion of the inner panel which is located at a position corresponding to the second reinforcement, and configured to be a starting point causing bending of a front side frame toward the second reinforcement when a collision load is applied in a vehicle collision, and a second attaching member provided at a position located on a front-end side of the front side frame relatively to the second reinforcement and configured to make the second reinforcement crushable in a bending direction in the vehicle collision. The second attaching member comprises a knot-shaped member provided inside the main closed-cross section.
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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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公开(公告)号：US09321487B2
公开(公告)日：2016-04-26
申请号：US14370274
申请日：2013-01-16
Applicant: MAZDA MOTOR CORPORATION
Inventor： Masanori Honda , Chikara Kawamura , Sakayu Terada
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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Patent Agency Ranking
公开(公告)号：US12122453B2
公开(公告)日：2024-10-22
申请号：US17590819
申请日：2022-02-02
Applicant: Mazda Motor Corporation
Inventor： Kenji Nishida , Chikara Kawamura
CPC classification number: B62D25/081 , B62D29/04 , B62D25/082 , B62D25/088 , B62D29/005
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：US11858555B2
公开(公告)日：2024-01-02
申请号：US17590821
申请日：2022-02-02
Applicant: Mazda Motor Corporation
Inventor： Kenji Nishida , Chikara Kawamura
CPC classification number: B62D25/088 , B62D25/082 , B62D25/14 , B62D29/043
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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公开(公告)号：US10994680B2
公开(公告)日：2021-05-04
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：US10479302B2
公开(公告)日：2019-11-19
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
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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公开(公告)号：US20180257589A1
公开(公告)日：2018-09-13
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
CPC classification number: B60R19/34 , B60R19/03 , B60R2019/262 , B62D21/152 , F16F7/00 , F16F7/003 , F16F2224/0241
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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