公开(公告)号：US20210102101A1

公开(公告)日：2021-04-08

申请号：US16497552

申请日：2018-03-23

Applicant: CEMEDINE CO., LTD. ,  MAZDA MOTOR CORPORATION

Inventor： Daisuke MAKINO ,  Atsuhiko SUZUKI ,  Yusuke MURACHI ,  Motoyasu ASAKAWA ,  Katsuya HIMURO ,  Kenichi YAMAMOTO

IPC: C09J163/00 ,  C08G59/18 ,  C09J11/04 ,  C09J11/06 ,  C09J5/06 ,  B62D65/02 ,  C08K3/36 ,  C08K3/22

Abstract: Provided are a low-temperature heat-curable adhesive composition for structures which is able to cure at a low temperature in a short time, is reduced in groove defects after open-state standing, and is excellent in rust-preventive property, corrosion resistance, shower resistance, and workability; and a method for producing an automotive structure using the adhesive composition. The low-temperature heat-curable adhesive composition for structures includes (A) an epoxy resin, (B) a micro-encapsulated curing agent, (C) a hygroscopic agent, (D) a viscosity modifier, and (E) a stabilizer. The hygroscopic agent (C) is calcium oxide, which suitably includes both a surface-treated grade and a non-surface-treated grade.

公开(公告)号：US20160325785A1

公开(公告)日：2016-11-10

申请号：US15110041

申请日：2015-01-30

Applicant: MAZDA MOTOR CORPORATION

Inventor： Kohya NAKAGAWA ,  Kuniaki NAGAO ,  Kenichi YAMAMOTO ,  Motoyasu ASAKAWA ,  Katsuya HIMURO

IPC: B62D25/02 ,  F16F1/36 ,  F16F15/08 ,  B62D27/02

CPC classification number: B62D25/025 ,  B62D25/2036 ,  B62D27/02 ,  F16F1/3605 ,  F16F15/08

Abstract: A reinforcing body is disposed in a closed cross sectional portion constituted by one or more vehicle body components. The reinforcing body is provided with a joining portion to be joined to the vehicle body components. The joining portion includes hard connecting portions connected to the vehicle body components in an abutting state, and a soft connecting portion connected to the vehicle body components via a vibration damping member. The storage shear rigidity (KB′) of the vibration damping member is set in the range: 800 N/mm

Abstract translation: 加强体设置在由一个或多个车体部件构成的封闭截面部分中。 加强体设置有与车身部件接合的接合部。 接合部分包括在邻接状态下连接到车身部件的硬连接部分，以及经由振动阻尼部件连接到车身部件的软连接部分。 减震构件的储能剪切刚度（KB'）设定在800N / mm

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

IPC: F16B5/02 ,  F16B35/00

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.

公开(公告)号：US20220128075A1

公开(公告)日：2022-04-28

申请号：US17500949

申请日：2021-10-14

Applicant: Mazda Motor Corporation

Inventor： Mitsuru WAKABAYASHI ,  Koji MIYAMOTO ,  Takayuki NAKAMAE ,  Noriyuki KAWAI ,  Teppei OE ,  Hiroki KIMURA ,  Kenichi YAMAMOTO ,  Koki KAGIMOTO

IPC: F16B11/00 ,  F16B5/08

Abstract: A panel joint structure suppresses stress concentration on a flange corner section-side end-portion of an adhesive during application of a peeling load. A first panel member includes a panel body section, a corner section, and a first flange section. A second panel member is arranged to oppose the first flange section. A joint section joins the first flange section and the second panel member in a contact state thereof, and an adhesive continuously provided in a longitudinal direction of the corner section adheres the first flange section to the second panel member. The first panel member includes a load transmission section near a joint section, and the load transmission section is provided between the panel body section and the first flange section, and an angle θ2 thereof that is defined with the panel body section is larger than an angle θ1 defined by the panel body section and a portion in a short direction of the first flange section. A flange distal end-side end-portion of the load transmission section in the short direction of the flange section is disposed in a region between a corner section-side end-portion and a distal end-side end-portion of the joint section in the short direction of the first flange section.

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

IPC: B62D25/04 ,  B32B1/00 ,  B32B5/02 ,  B32B7/12 ,  B32B15/14 ,  B62D21/15 ,  B62D29/00 ,  C25D13/12

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.

公开(公告)号：US20190062611A1

公开(公告)日：2019-02-28

申请号：US16109917

申请日：2018-08-23

Applicant: Sunstar Engineering Inc. ,  Mazda Motor Corporation

Inventor： Takatomi NISHIDA ,  Shohei YANAGISAWA ,  Katsuya HIMURO ,  Kenichi YAMAMOTO ,  Motoyasu ASAKAWA ,  Tomoya YOSHIDA

IPC: C09J163/00 ,  C09J11/08

CPC classification number: C09J163/00 ,  C09J11/08 ,  C08L63/00

Abstract: The present invention provides a one-component type thermosetting adhesive composition used as an automotive structural adhesive having high damping performance without reducing adhesive strength and having excellent low-temperature curability and a body structure for vehicle, on which the one-component type thermosetting adhesive composition is applied. The present invention relates to a one-component type thermosetting adhesive composition comprising an epoxy resin and an amine-based latent curing agent, wherein the epoxy resin comprises: (1) a dibasic acid ester-based epoxy resin, (2) a butadiene-acrylonitrile copolymer modified epoxy resin, and (3) an unmodified bisphenol A type epoxy resin, and wherein a thermally cured product formed from the composition has: a loss tangent tan δ at 23° C. of not less than 0.2 as a damping performance, and a Young's modulus of not less than 50 MPa, and a body structure for vehicle, on which the one-component type thermosetting adhesive composition is applied.