公开(公告)号：EP3220005B1

公开(公告)日：2019-09-11

申请号：EP15858693.3

申请日：2015-10-28

申请人： KYB-YS CO., LTD.

发明人： KOBAYASHI, Nobuyuki ,  SATOU, Shinji

IPC分类号： E02F9/22 ,  F16F9/54 ,  F16B5/02 ,  F16B9/02

公开(公告)号：EP3683452A1

公开(公告)日：2020-07-22

申请号：EP18877548.0

申请日：2018-07-06

申请人： KYB-YS Co., Ltd. ,  KYB Corporation

发明人： MIYASHITA, Hideki ,  MATSUZAKI, Keiichi

IPC分类号： F15B11/02 ,  E02F9/22

摘要： A fluid pressure control device (100) includes: a first traveling control valve (20) controlling a flow of the working oil supplied and discharged to and from a first traveling motor (1); a cylinder control valve (25) controlling a flow of the working oil supplied to and discharged from a hydraulic cylinder (3); a first merging passage (17) introducing the working oil to the cylinder control valve (25) from a third driving pump (P3); a communication valve (40) to which the first merging passage (17) is connected. A throttle portion (60) applying resistance to the passing working oil is provided in the tank passage (51) communicating with a second pilot chamber (41b) of the communication valve (40).

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：EP3040587B1

公开(公告)日：2019-10-09

申请号：EP14840755.4

申请日：2014-08-11

申请人： KYB-YS Co., Ltd.

发明人： KOBAYASHI, Nobuyuki

IPC分类号： F16J7/00 ,  B23K20/12 ,  B23P15/10 ,  F15B15/14 ,  B23K31/12 ,  F16C7/02 ,  B23K101/00

公开(公告)号：EP3220005A4

公开(公告)日：2018-06-06

申请号：EP15858693

申请日：2015-10-28

申请人： KYB YS CO LTD

发明人： KOBAYASHI NOBUYUKI ,  SATOU SHINJI

IPC分类号： E02F9/22 ,  F16B5/02 ,  F16B9/02 ,  F16F9/54

CPC分类号： F15B15/149 ,  E02F9/226 ,  E02F9/2267 ,  E02F9/2275 ,  F15B13/0433 ,  F16B5/02 ,  F16B5/0225 ,  F16B9/02 ,  F16B9/026 ,  F16F9/3228 ,  F16F9/54

摘要： A device mounting structure for mounting a load maintaining mechanism (20) on a hydraulic cylinder (10), a pipe (17) for suppling and discharging working oil to and from the hydraulic cylinder (10) being connected to the load maintaining mechanism (20) such that the working oil is led thereto, includes a single coupling portion (30) that includes a screw hole (32) and is provided on the hydraulic cylinder (10), and a bracket (40) to which the load maintaining mechanism (20) is fixed, the bracket (40) being coupled to the coupling portion (30) via a first screw member (50) that is screwed into the screw hole (32), wherein the bracket (40) includes a first through hole (43) through which the first screw member (50) is passed so as to leave a gap in a radial direction.

公开(公告)号：EP3205888B1

公开(公告)日：2020-03-25

申请号：EP15849172.0

申请日：2015-10-06

申请人： KYB-YS Co., Ltd.

发明人： MATSUZAKI, Keiichi ,  KOIKE, Fumiaki

IPC分类号： F15B11/04 ,  F15B11/00 ,  F15B11/08 ,  F16K31/383 ,  F16K51/00 ,  F15B13/01

公开(公告)号：EP3045764A1

公开(公告)日：2016-07-20

申请号：EP14868650.4

申请日：2014-11-21

申请人： KYB Corporation ,  KYB-YS Co., Ltd.

发明人： TOYOUCHI, Atsushi ,  NAKAZATO, Masakazu ,  SEKINE, Shinichi ,  SAITO, Yasushi ,  FUKUZAWA, Yuji

IPC分类号： F16F9/36 ,  F16J15/18 ,  F16J15/32

CPC分类号： F16F9/362 ,  F16F9/19 ,  F16F9/38

摘要： Providing a damper which can prevent leak of the fluid filling a cylinder and can maintain a proper reaction force and damping characteristic.
A damper includes a piston (20) reciprocally movable in a cylinder (10) thereby dividing an interior of the cylinder (10) into a first chamber (A) located at an open end (11) side and a second chamber (B) located at a closed end (12) side, a piston rod (30) having a distal end (31) to which the piston (20) is connected and a rear end (33) side protruding outward from the open end (11) of the cylinder (10), a rod guide (40) fixed to the open end (11) of the cylinder (10) and having a through hole (44) through which the piston rod (30) is reciprocally movable, and a seal (49) which is provided in the rod guide (40) so as to be located at a position spaced away from an outer end (Z) of a sliding surface (47) of the through hole (44) to the first chamber (A) side by a distance longer than a maximum stroke width (S) of the piston rod (30).

摘要翻译： 提供一种阻尼器，其可以防止填充气缸的流体泄漏并且可以保持适当的反作用力和阻尼特性。 阻尼器包括可在气缸（10）中往复运动的活塞（20），从而将气缸（10）的内部分成位于开放端（11）侧和位于第二腔（B）的第一腔室（A） 在封闭端（12）侧具有活塞杆（30），该活塞杆具有活塞（20）所连接的远端（31）和从活塞（20）的开口端（11）向外突出的后端（33） （10），固定在缸体（10）的开口端（11）上并具有供活塞杆（30）往复运动的通孔（44）的杆导向件（40），以及密封件 ）设置在杆导向件（40）中，以便位于从通孔（44）的滑动表面（47）的外端（Z）离开第一室（A）侧的位置 延伸的距离大于活塞杆（30）的最大行程宽度（S）。

公开(公告)号：EP3040587A1

公开(公告)日：2016-07-06

申请号：EP14840755.4

申请日：2014-08-11

申请人： KYB-YS Co., Ltd.

发明人： KOBAYASHI, Nobuyuki

IPC分类号： F16J7/00 ,  B23K20/12 ,  B23P15/10

CPC分类号： B23K20/12 ,  B23K20/129 ,  B23K31/125 ,  B23K2101/003 ,  B23P15/10 ,  F15B15/1457 ,  F16C7/023 ,  F16C2226/36 ,  F16J7/00

摘要： A piston rod manufacturing method of manufacturing a piston rod by joining a solid rod main body and a solid rod head includes a first step of joining respective end surfaces of the rod main body and the rod head by friction welding; and a second step of performing boring process on an axial center portion from the rod head side so as to penetrate through a joining face between the rod main body and the rod head.

摘要翻译： 通过连接实心杆主体和实心杆头制造活塞杆的活塞杆制造方法包括：通过摩擦焊接连接杆主体和杆头的相应端面的第一步骤; 以及第二步骤，从杆头侧的轴向中心部分进行钻孔加工，以穿过杆主体和杆头之间的接合面。

公开(公告)号：EP2775152A1

公开(公告)日：2014-09-10

申请号：EP12846284.3

申请日：2012-10-10

申请人： KYB-YS Co., Ltd.

发明人： KOBAYASHI, Nobuyuki ,  KAMIKURA, Sadayuki

IPC分类号： F15B15/14

CPC分类号： F16J10/02 ,  F15B15/1457 ,  F15B15/149 ,  Y10T29/4927

摘要： A fluid pressure cylinder includes a cylinder tube, a piston and a solid piston rod. The piston rod includes a head-side passage defined by a head-side shaft hole extending in an axial direction, a head-side outer hole open on a part projecting from the cylinder tube and a head-side inner hole open to a head-side chamber and allowing communication between a head-side chamber and a fluid pressure source, and a bottom-side passage allowing communication between a bottom-side chamber and the fluid pressure source. The head-side shaft hole includes an opening end and a tip formed inside the piston rod. The opening end of the head-side shaft hole is sealed by a sealing member.

摘要翻译： 流体压力缸包括缸筒，活塞和固体活塞杆。 活塞杆包括由沿轴向延伸的头侧轴孔限定的头侧通道，在从筒管突出的部分上开口的头侧外孔和通过头部侧开口的头侧内孔， 并且允许头侧室和流体压力源之间的连通，以及允许底侧室和流体压力源之间连通的底侧通道。 头侧轴孔包括形成在活塞杆内部的开口端和尖端。 头侧轴孔的开口端由密封构件密封。

公开(公告)号：EP2217828B1

公开(公告)日：2012-06-27

申请号：EP08836816.2

申请日：2008-10-08

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

发明人： KATAYAMA, Takumi ,  IWAMOTO, Katsuya ,  ASA, Takashi ,  SAITOU, Yasushi

IPC分类号： F16F9/02 ,  F16F9/36

CPC分类号： F16F9/362 ,  F16F9/0218

摘要： A gas spring is intended to permanently maintain the sealing performance of a lip in a dust seal without being affected by pressure from a gas sealed inside the spring. A rod body is operates in conjunction with a cylinder body with a gas of a predetermined pressure sealed inside the cylinder body. The rod body is movable into and out of the cylinder body. A rod guide is penetrated by the rod body at a shaft core portion inside a head end portion of the cylinder body. A dust seal has with a lip in sliding contact with an outer circumference of the rod body. A sealed end portion of the cylinder body is in contact with an outer end of the rod guide inside the cylinder body. The dust seal is integrally incorporated at the outer end portion of the rod guide.