公开(公告)号：EP3603870A1

公开(公告)日：2020-02-05

申请号：EP18778102.6

申请日：2018-03-14

申请人： KYB-YS Co., Ltd.

发明人： NAGAI, Yasuyuki

IPC分类号： B23K20/12 ,  F15B15/14

摘要： A manufacturing method for manufacturing a cylinder tube 100 includes a joining step of joining a tube main body 10 and a head member 20 by friction welding by abutting an end surface 11 of the tube main body 10 and a flange portion 22 of the head member 20 in a state in which a through hole 10A of the tube main body 10 and a projecting portion 21 of the head member 20 are fitted to each other so as to form a predetermined clearance 25. In the joining step, a non-contact portion 22B of the flange portion 22 of the head member 20 facing the clearance 25 is joined to the tube main body 10 by heating the non-contact portion 22B with friction heat generated by relative rotation between the tube main body 10 and the head member 20.

公开(公告)号：EP2952751A1

公开(公告)日：2015-12-09

申请号：EP13878874.0

申请日：2013-12-02

申请人： KYB-YS Co., Ltd. ,  Kayaba Industry Co., Ltd.

发明人： KOBAYASHI, Nobuyuki ,  KAMIKURA, Sadayuki ,  NAGAI, Yasuyuki

IPC分类号： F15B15/14 ,  B21D22/16 ,  B21H1/18

CPC分类号： F15B15/14 ,  B21D22/16 ,  F15B15/1428 ,  F15B15/149

摘要： A fluid pressure cylinder extends and contracts in accordance with supply/discharge of fluid pressure to/from a cylinder tube is provided. On inner side of both end portions of the cylinder tube in an axial direction, at least one small-diameter portion having a diameter smaller than those of the end portions in the axial direction is formed by a spinning process.

摘要翻译： 提供流体压力缸根据向/从缸筒供给/排出流体压力而延伸和收缩。 在筒管的两端部的轴向的内侧，通过纺丝工序形成直径小于端部的轴向的至少一个小直径部。

公开(公告)号：EP3361107A1

公开(公告)日：2018-08-15

申请号：EP16853430.3

申请日：2016-09-21

申请人： KYB-YS Co., Ltd.

发明人： KOBAYASHI, Nobuyuki ,  NAGAI, Yasuyuki ,  SATOU, Shinji

IPC分类号： F16B4/00 ,  B23K20/12 ,  F15B15/14 ,  F16B11/00

CPC分类号： F15B15/1438 ,  B23K20/12 ,  B23K20/129 ,  F15B15/14 ,  F16B4/00 ,  F16B11/00

摘要： A bonded body 1 includes a first member 10 having a hollow portion 13 with an opening in an end surface 11, and the second member 50 having a protrusion portion 53 protruding from a body portion 52, the protrusion portion 53 being accommodated in the hollow portion 13. An inner peripheral surface of the hollow portion 13 has an inclined portion 18 inclined to a radial direction of the opening of the hollow portion 13, and an outer peripheral surface of the protrusion portion 53 is in contact with the inclined portion 18. Alternatively, the outer peripheral surface of the protrusion portion 53 has a chamfered portion 54 inclined to the radial direction of the opening of the hollow portion 13, and the inner peripheral surface of the hollow portion 13 is in contact with the chamfered portion 54.

公开(公告)号：EP2952751B1

公开(公告)日：2018-06-27

申请号：EP13878874.0

申请日：2013-12-02

申请人： KYB-YS CO., LTD. ,  KYB Corporation

发明人： KOBAYASHI, Nobuyuki ,  KAMIKURA, Sadayuki ,  NAGAI, Yasuyuki

IPC分类号： F15B15/14 ,  B21D22/16 ,  B21H1/18

CPC分类号： F15B15/14 ,  B21D22/16 ,  F15B15/1428 ,  F15B15/149

摘要： A fluid pressure cylinder extends and contracts in accordance with supply/discharge of fluid pressure to/from a cylinder tube is provided. On inner side of both end portions of the cylinder tube in an axial direction, at least one small-diameter portion having a diameter smaller than those of the end portions in the axial direction is formed by a spinning process.