公开(公告)号：US10144482B2

公开(公告)日：2018-12-04

申请号：US15415375

申请日：2017-01-25

Applicant: Showa Corporation

Inventor： Kojiro Yoshida

IPC: B62K25/08 ,  F16F13/00 ,  F16F15/023 ,  F16F15/067 ,  F16F9/02 ,  F16F9/06 ,  B62K25/04

Abstract: A front fork leg includes an inner chamber that absorbs by a gas spring a shock caused on a vehicle; an auxiliary gas spring chamber communicating with the inner chamber; an auxiliary piston provided in the auxiliary gas spring chamber; and a gas spring chamber side gas chamber sectioned by the auxiliary piston and communicating with the inner chamber, and the auxiliary piston moves to increase a volume of the gas spring chamber side gas chamber, as pressure inside the inner chamber increases.

公开(公告)号：US10081408B2

公开(公告)日：2018-09-25

申请号：US15411222

申请日：2017-01-20

Applicant: Showa Corporation

Inventor： Kojiro Yoshida

IPC: F16F9/48 ,  B62K25/08 ,  F16F9/02 ,  F16F9/346 ,  B62K25/04

CPC classification number: B62K25/08 ,  B62K2025/044 ,  B62K2201/08 ,  F16F9/0209 ,  F16F9/0218 ,  F16F9/346

Abstract: An air spring structure has a first communication hole formed in a peripheral surface of a cylinder and a second communication hole formed in the peripheral surface at a position closer to an axle than the first communication hole. A piston has a sliding portion that comes into contact with an inner peripheral surface of the cylinder and partitions the cylinder into an inner chamber and a balance chamber. The sliding portion has an axial length shorter than an axial length between the first communication hole and the second communication hole. A communication member has a communication path formed so as to pass through the first communication hole and the second communication hole to allow the inner chamber and the balance chamber to communicate with each other.

公开(公告)号：US09969458B2

公开(公告)日：2018-05-15

申请号：US15005883

申请日：2016-01-25

Applicant: Showa Corporation

Inventor： Kojiro Yoshida

IPC: B62K25/28 ,  B60G15/14 ,  B60G17/052 ,  F16F9/38 ,  F16F9/43 ,  F16F9/04 ,  B62K25/10 ,  F16F13/00

CPC classification number: B62K25/283 ,  B60G15/14 ,  B60G17/0528 ,  B60G2202/314 ,  B60G2206/41 ,  B60G2206/424 ,  B60G2300/12 ,  B62K25/10 ,  F16F9/0472 ,  F16F9/38 ,  F16F9/43 ,  F16F13/002

Abstract: An air suspension in an embodiment includes: a cylinder; a piston rod; a rod-side member disposed on the lower end side of the piston rod; a diaphragm; an axle-side attachment member having an upper end side of which is fixed to an opening at a lower end of the rod-side member, the axle-side attachment member including a fixing section for fixing the piston rod and an attachment hole joined to an axle; a gas passage formed in the axle-side attachment member, one end of the gas passage being opened to an upper end face of the axle-side attachment member and the other end of the gas passage being opened to a side section of the axle-side attachment member; and a valve section provided at the opening of the other end of the gas passage.

公开(公告)号：US11098780B2

公开(公告)日：2021-08-24

申请号：US16521103

申请日：2019-07-24

Applicant: Showa Corporation

Inventor： Katsushi Tanaka ,  Kojiro Yoshida

IPC: F16F9/05 ,  B60G15/14 ,  F16F9/34 ,  F16F9/36 ,  F16F9/49 ,  B62K25/28

Abstract: A suspension includes: a cylinder; a piston rod including a piston provided at one end-side, and inserted in the cylinder together with the piston; an outer tube part opened at the one end-side, a position of which relative to the piston rod is fixed at the other end-side, and configured to receive therein at least a part of the cylinder; and a tubular rolling diaphragm having one end disposed at the cylinder and the other end fixed to the outer tube part, and configured to roll in conjunction with displacement of the piston rod with respect to the cylinder. The rolling diaphragm becomes convex toward the other end-side of the outer tube part and is accommodated in the outer tube part, upon contraction of the suspension.

公开(公告)号：US09115779B2

公开(公告)日：2015-08-25

申请号：US14259731

申请日：2014-04-23

Applicant: SHOWA CORPORATION

Inventor： Kojiro Yoshida ,  Masao Shimasaki ,  Tatsuya Takahashi

IPC: F16F9/34 ,  B62K25/08 ,  F16F9/18

CPC classification number: F16F9/341 ,  B62K25/08 ,  F16F9/185 ,  F16F9/3405

Abstract: A suspension apparatus includes: a cylindrical outer tube; an inner tube a piston rod of which one end portion retains a piston; and a partition wall member that is mounted to an upper end portion of the inner tube to define an upper end portion of an annular oil chamber, that has a bowl portion, and that divides a space inside the inner tube into an inner space and an outer space of the bowl portion, in which the partition wall member divides the outer space into a gap space and a space other than the gap space, a through-hole is formed in the partition wall member, and at least one of the partition wall member and the inner tube is provided with a communication path through which an upper portion of the annular oil chamber communicates with the gap space.

Abstract translation: 悬挂装置包括：圆柱形外管; 内管，一个端部保持活塞的活塞杆; 以及分隔壁构件，其安装到所述内管的上端部，以限定环形油室的上端部，所述上端部具有碗部，并且将所述内管内的空间分成内部空间， 所述分隔壁部件将所述外部空间分割成间隙空间和所述间隙空间以外的空间的所述碗部的外部空间形成有所述分隔壁构件中的至少一个， 构件和内管设置有连通路径，环形油室的上部通过该连通路径与间隙空间连通。

公开(公告)号：US10400843B2

公开(公告)日：2019-09-03

申请号：US15295861

申请日：2016-10-17

Applicant: Showa Corporation

Inventor： Kojiro Yoshida

IPC: F16F9/18 ,  F16F13/06 ,  F16F9/08 ,  F16F9/084 ,  F16F9/58 ,  F16F9/49 ,  F16F9/06 ,  B62K25/28 ,  B62K25/08

Abstract: A damper includes a cylinder, a piston, a piston rod, a rod-side fluid chamber, a piston-side fluid chamber, an annular fluid chamber, and a stopper mechanism. The cylinder includes an inner tube and an outer tube. The rod-side fluid chamber is defined by the piston in the inner tube on a lower end side. The piston-side fluid chamber is defined by the piston in the inner tube on an upper end side. The annular fluid chamber is between the inner and outer tubes. At least one communication hole communicates the rod-side fluid chamber with the annular fluid chamber. A communication passage communicates the rod-side fluid chamber with the annular fluid chamber. A check valve in the communication passage allows fluid to flow from the annular fluid chamber to the rod-side fluid chamber and disallows the fluid to flow from the rod-side fluid chamber to the annular fluid chamber.

公开(公告)号：US09541152B2

公开(公告)日：2017-01-10

申请号：US14258328

申请日：2014-04-22

Applicant: SHOWA CORPORATION

Inventor： Kojiro Yoshida

IPC: F16F9/34 ,  F16F9/18 ,  B62K25/08 ,  F16F9/43 ,  F16F9/22

CPC classification number: F16F9/341 ,  B62K25/08 ,  F16F9/185 ,  F16F9/22 ,  F16F9/43

Abstract: A suspension apparatus includes: a partition wall member that divides a space inside an inner tube into an upper space and a lower space; a cap that covers an upper opening portion of an outer tube; and a support member of which one end portion is retained by the cap, and of which the other end portion supports the other end portion of a piston rod, in which a through-hole is formed in a portion of the inner tube, an inner space of the piton rod is a space inside the piston rod and communicates with the lower space, the support member is a cylindrical member and forms an upper portion space, and the upper portion space communicates with the inner space of the piston rod, and at least one of the cap and the support member is provided with a communication path.

Abstract translation: 悬挂装置包括：分隔壁构件，其将内管内的空间分成上部空间和下部空间; 覆盖外管的上开口部的盖; 以及一个支撑部件，其一个端部被盖保持，另一个端部支撑活塞杆的另一个端部，其中在内管的一部分中形成有通孔，内部 活塞杆的空间是活塞杆内部的空间，与下部空间连通，支撑部件为圆筒状，形成上部空间，上部空间与活塞杆的内部空间连通， 帽和支撑构件中的至少一个设置有通信路径。