-
公开(公告)号：US09500256B2
公开(公告)日：2016-11-22
申请号：US14429136
申请日：2013-09-11
Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
Inventor： Mikio Yamashita , Fumiyuki Yamaoka
CPC classification number: F16F9/512 , B60G21/06 , B60G2204/8304 , B60G2206/41 , B60G2500/11 , B60G2800/012 , B60G2800/014 , F16F9/32 , F16F9/348 , F16F9/3485 , F16F9/48 , F16F9/486 , F16F9/50 , F16F9/585
Abstract: This suspension device is provided with a shock absorber (5) that is capable of altering damping force using the position of a piston rod (18) such that at least any one of the following characteristics are achieved, namely, first characteristics in which, within a range where the piston rod (18) is extending out from a cylinder (11) beyond a first predetermined position, the extension-side damping force is in a soft state and the compression-side damping force is in a hard state, and second characteristics in which, within a range where the piston rod (18) is retracted inside the cylinder (11) beyond a second predetermined position, the extension-side damping force is in a hard state and the compression-side damping force is in a soft state; and an operating force adjustment mechanism that is capable of adjusting at least one of the operating force in the roll direction of a vehicle, and the operating force in a pitch direction of the vehicle.
Abstract translation: 该悬挂装置设置有减震器（5），其能够使用活塞杆（18）的位置来改变阻尼力，使得实现以下特征中的至少一个，即，第一特性，其中，在 活塞杆（18）从气缸（11）伸出超过第一预定位置的范围，伸展侧阻尼力处于软状态，压缩侧阻尼力处于硬状态，第二 其特征在于，在活塞杆（18）在气缸（11）内部缩回超过第二预定位置的范围内，延伸侧阻尼力处于硬状态，压缩侧阻尼力处于软 州; 以及能够调节车辆的滚动方向上的操作力和车辆的俯仰方向上的操作力中的至少一个的操作力调节机构。
-
公开(公告)号：US11867253B2
公开(公告)日：2024-01-09
申请号：US17255119
申请日：2019-07-18
Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
Inventor： Fumiyuki Yamaoka
CPC classification number: F16F9/348 , F16F9/368 , F16F9/5126 , B60G13/08 , B60G17/08 , B60G2202/24 , B60G2204/62 , B60G2206/41 , B60G2500/114 , B60G2800/162 , F16F9/061 , F16F2222/12 , F16F2228/066 , F16F2232/08 , F16F2234/02
Abstract: Hydraulic fluid in a cylinder's lower chamber is introduced into a back pressure chamber through the outer periphery of an extension-side main valve during a compression stroke of a piston rod. This eliminates the necessity of forming paths by arranging a plurality of discs and a check valve, the paths for introducing into the back pressure chamber the hydraulic fluid in the cylinder's lower chamber that becomes an upstream chamber during the compression stroke. This makes it possible to decrease the axial length of a shaft portion of the piston rod and therefore the entire length of a cylinder, and also downsize a shock absorber.
-
公开(公告)号：US09810281B2
公开(公告)日：2017-11-07
申请号：US14910823
申请日：2014-08-11
Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
Inventor： Shunsuke Mori , Fumiyuki Yamaoka , Mikio Yamashita
IPC: F16F9/46
CPC classification number: F16F9/465
Abstract: PROBLEMProvided is a damping force control type shock absorber capable of obtaining an appropriate damping force even in the event of a failure independently of the stoke of a valving element of a solenoid valve.MEANS FOR SOLVINGA piston 5 having a piston rod 6 connected thereto is fitted in a cylinder 2 having hydraulic oil sealed therein, and a flow of hydraulic oil induced by movement of the piston 5 is controlled by a damping force generating mechanism 26 to generate a damping force. In the damping force generating mechanism 26, damping force is generated by a pilot-type main valve 27 and a normally-open pilot valve 28 which is a solenoid valve, and the damping force is adjusted by energization of a coil 37. A fail-safe valve 100 is provided downstream of the pilot valve 28. During normal operations, the fail-safe valve 100 opens the flow path through excitation of the coil 37 of the pilot valve 28. In the event of a failure, due to loss of excitation, the fail-safe valve 100 restricts the flow path to generate an appropriate damping force in place of the pilot valve 28, which has become inoperable.
-
公开(公告)号：US10352390B2
公开(公告)日：2019-07-16
申请号：US15562483
申请日：2016-09-27
Applicant: Hitachi Automotive Systems, Ltd.
Inventor： Kengo Hase , Fumiyuki Yamaoka , Shunsuke Mori , Mikio Yamashita , Daiki Miyazawa
IPC: F16F9/46 , F16F9/32 , F16F9/18 , F16K31/06 , F16L37/088
Abstract: Provided are a damper configured such that the axial play between a coil case and a case member can be eliminated without increasing a size of a solenoid, and a method of assembling the damper. An O-ring (seal member) is elastically supported by a tapered hole formed in an inner peripheral surface of a case member and a tapered shaft formed in an outer peripheral surface of a coil case, and a retaining ring is configured to receive an axial force generated by the O-ring. The configuration enables the play between the coil case and the case member of the solenoid to be eliminated. A damping force regulation mechanism, and in turn the damper, may be made more compact in comparison with a case in which the O-ring is received by the opening side end face of the case member.
-
Patent Agency Ranking
公开(公告)号：US09309945B2
公开(公告)日：2016-04-12
申请号：US14265122
申请日：2014-04-29
Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
Inventor： Atsushi Maeda , Masaru Kouyama , Mikio Yamashita , Fumiyuki Yamaoka
CPC classification number: F16F9/19
Abstract: A shock absorber has an inclined surface that is inclined to a moving direction of the free piston in at least one of a free piston contact surface of a free piston with which an elastic body is in contact and a housing contact surface of a housing with which the elastic body is in contact. A shortest distance between the free piston contact surface and the housing contact surface is changed by movement of the free piston.
Abstract translation: 减震器具有倾斜表面，该倾斜表面在自由活塞的自由活塞接触表面中的至少一个中自由活塞的移动方向倾斜，弹性体与弹性体接触并且与壳体的壳体接触表面接触， 弹性体接触。 自由活塞接触表面和壳体接触表面之间的最短距离通过自由活塞的移动而改变。
-
公开(公告)号：US20150247547A1
公开(公告)日：2015-09-03
申请号：US14429136
申请日：2013-09-11
Applicant: Hitachi Automotive Systems, Ltd.
Inventor： Mikio Yamashita , Fumiyuki Yamaoka
CPC classification number: F16F9/512 , B60G21/06 , B60G2204/8304 , B60G2206/41 , B60G2500/11 , B60G2800/012 , B60G2800/014 , F16F9/32 , F16F9/348 , F16F9/3485 , F16F9/48 , F16F9/486 , F16F9/50 , F16F9/585
Abstract: This suspension device is provided with a shock absorber (5) that is capable of altering damping force using the position of a piston rod (18) such that at least any one of the following characteristics are achieved, namely, first characteristics in which, within a range where the piston rod (18) is extending out from a cylinder (11) beyond a first predetermined position, the extension-side damping force is in a soft state and the compression-side damping force is in a hard state, and second characteristics in which, within a range where the piston rod (18) is retracted inside the cylinder (11) beyond a second predetermined position, the extension-side damping force is in a hard state and the compression-side damping force is in a soft state; and an operating force adjustment mechanism that is capable of adjusting at least one of the operating force in the roll direction of a vehicle, and the operating force in a pitch direction of the vehicle.
Abstract translation: 该悬挂装置设置有减震器（5），其能够使用活塞杆（18）的位置来改变阻尼力，使得实现以下特征中的至少一个，即，第一特性，其中，在 活塞杆（18）从气缸（11）伸出超过第一预定位置的范围，伸展侧阻尼力处于软状态，压缩侧阻尼力处于硬状态，第二 其特征在于，在活塞杆（18）在气缸（11）内部缩回超过第二预定位置的范围内，延伸侧阻尼力处于硬状态，压缩侧阻尼力处于软 州; 以及能够调节车辆的滚动方向上的操作力和车辆的俯仰方向上的操作力中的至少一个的操作力调节机构。
-
公开(公告)号：US20140252735A1
公开(公告)日：2014-09-11
申请号：US14347149
申请日：2012-11-28
Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
Inventor： Mikio Yamashita , Fumiyuki Yamaoka , Masaru Kouyama , Kunio Takiguchi , Atsufumi Ishimoto
CPC classification number: B60G17/08 , B60G17/00 , F16F9/342 , F16F9/48 , F16F9/49 , F16F9/512 , F16F9/516 , F16F9/5165
Abstract: A shock absorber includes a first passage (111) or (112) and a second passage (32), (99) or (235) in communication with each other and configured to allow a working fluid to flow between two chambers (16) and (17) based on movement of a piston (15), and a passage area adjustment mechanism (101) or (236) configured to adjust a passage area of the second passage (99) or (235) depending on a position of a piston rod (18) is installed to have at least one of a maximum length-side property in which an extension-side damping force becomes soft and a compression-side damping force becomes hard in a range in which the piston rod (18) extends to an outside of a cylinder (11) farther than a maximum length-side predetermined position, and a minimum length-side property in which the extension-side damping force becomes hard and the compression-side damping force becomes soft in a range in which the piston rod (18) enters an inside of the cylinder (11) further than a minimum length side predetermined position.
Abstract translation: 减震器包括彼此连通的第一通道（111）或（112）和第二通道（32），（99）或（235），并且构造成允许工作流体在两个室（16）和 （17），以及构造成根据活塞的位置来调节第二通道（99）或（235）的通道面积的通道面积调节机构（101）或（236） 杆（18）被安装成具有在活塞杆（18）延伸到的范围内延伸侧阻尼力变软，压缩侧阻尼力变硬的最大长度侧特性中的至少一个 在比最大长度侧预定位置更远的气缸（11）的外侧和延伸侧阻尼力变硬的压缩侧阻尼力变软的最小长度侧特性， 活塞杆（18）比预定的最小长度侧进一步进入气缸（11）的内部 ed位置。
-
公开(公告)号：US10343477B2
公开(公告)日：2019-07-09
申请号：US14804688
申请日：2015-07-21
Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
Inventor： Mikio Yamashita , Fumiyuki Yamaoka
IPC: B60G17/015 , B60G15/04 , B60G17/08 , F16F9/10 , F16F9/50 , B60G17/016 , B60G17/0165 , B60G17/018 , F16F9/342 , F16F9/46
Abstract: A suspension system, which is used together with a vehicle including a vehicle body, a front wheel, and a rear wheel, includes a mechanical damping force variable shock absorber disposed between the vehicle body and the front wheel and configured to mechanically change a damping force, and a damping force adjustable shock absorber disposed between the vehicle body and the rear wheel and configured to adjust a damping force by an actuator.
-
9.发明授权公开(公告)号：US09234559B2
公开(公告)日：2016-01-12
申请号：US13721533
申请日：2012-12-20
Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
Inventor： Yusuke Maegawa , Fumiyuki Yamaoka , Makoto Nishimura
CPC classification number: F16F9/3235 , F16F9/3221 , F16F9/3271 , Y10T29/49826
Abstract: A joined body includes a first member having a female portion, and a second member having a male portion inserted in the female portion at one end, and an annular groove along an outer circumference of the male portion. The first member and the second member are fitted to each other. A plurality of joint portions is formed on a side wall of the female portion. The joint portions are joined to the male portion by being pushed in the annular groove. A pressing portion is formed at the female portion so as to face a position of the male portion axially different from the annular groove of the male portion. The pressing portion pressed against the male portion.
Abstract translation: 连接体包括具有阴部分的第一构件和在一端插入阴部分中的阳部分和沿着阳部分的外圆周的环形槽的第二构件。 第一构件和第二构件彼此配合。 在阴部分的侧壁上形成多个接合部分。 接合部通过被推入环状槽而与凸部接合。 在阴部分形成按压部分，以便面对与阳部分的环形槽轴向不同的阳部分的位置。 按压部分压靠在阳部上。
-
-
-
-
-
-
-
-
Search Results
9
records
(took 0.02 seconds)
