Hydraulic power steering apparatus
    1.
    发明授权
    Hydraulic power steering apparatus 失效
    液压动力转向装置

    公开(公告)号:US5439070A

    公开(公告)日:1995-08-08

    申请号:US75307

    申请日:1993-06-11

    摘要: A power steering apparatus having a hydraulic pump for outputting a pressurized fluid, an assist force generation mechanism hydraulically connected to the pump through a supply passage to generate an assist force in response to rotation of a steering wheel, wherein the assist force generation mechanism has a characteristic that the back pressure thereof increases when the steering wheel is rotated. The power steering apparatus further comprises a flow control valve having a spool which is moved in response to a pressure drop at a metering orifice disposed in the middle of the supply passage, so as to control the flow rate of the pressurized fluid to be constant. The spring chamber of the flow control valve is connected to a reservoir through a drain passage, and a drain valve is disposed in the drain passage for allowing the flow of pressurized fluid from the spring chamber to the reservoir when the back pressure of the assist force generation mechanism is low, and for prohibiting the flow of the pressurized fluid when the back pressure of the assist force generation mechanism increases.

    摘要翻译: 一种动力转向装置,其具有用于输出加压流体的液压泵,辅助力产生机构,其通过供给通道与泵液压连接,以产生响应于方向盘旋转的辅助力,其中辅助力产生机构具有 其特征在于当方向盘旋转时其背压增加。 动力转向装置还包括流量控制阀,该流量控制阀具有响应于设置在供给通道中间的计量孔口处的压降而移动的阀芯,以便控制加压流体的流量恒定。 流量控制阀的弹簧室通过排水通道连接到储存器,并且排水阀设置在排水通道中,用于当加压流体从弹簧室流到储存器时,当辅助力的背压 发电机构低,并且当辅助力产生机构的背压增加时禁止加压流体的流动。

    Hydraulic power steering apparatus
    2.
    发明授权
    Hydraulic power steering apparatus 失效
    液压动力转向装置

    公开(公告)号:US5515938A

    公开(公告)日:1996-05-14

    申请号:US138963

    申请日:1993-10-21

    摘要: A power steering apparatus having a fluid source for discharging pressurized fluid, a power cylinder, a control valve responsive to operation of a steering wheel for supplying the power cylinder with pressurized fluid from the fluid source, and a reservoir. The control valve has a first control portion for controlling the flow of pressurized fluid from the fluid source to the reservoir, and a second control portion for controlling the flow of pressurized fluid to the power cylinder. The first control portion has two paths connecting the fluid source and the reservoir, each of the paths being formed with at least one variable orifice of a center-open type which opens when the control valve is in a neutral state. The second control portion has two supply paths communicating with the fluid source and a pair of chambers of the power cylinder, each of the supply paths being formed with a variable orifice of a center-close type which closes when the control valve is in the neutral state, and two drain paths communicating with the pair of chambers and the reservoir, each of the drain paths being formed with a variable orifice of a center-open type which opens when the control valve is in the neutral state.

    摘要翻译: 一种动力转向装置,具有用于排出加压流体的流体源,动力缸,响应于操作方向盘的控制阀,用于向动力缸提供来自流体源的加压流体和储存器。 控制阀具有用于控制加压流体从流体源流向储存器的第一控制部分和用于控制加压流体流向动力缸的第二控制部分。 第一控制部分具有连接流体源和储存器的两条路径,每个路径形成有至少一个中心开放型可变孔口,当可控制阀处于空档状态时,其可打开。 第二控制部具有与流体源和动力缸的一对腔室连通的两个供给路径,每个供给路径形成有中心关闭型的可变孔口,当控制阀处于中立状态时,该可变孔口关闭 状态和与所述一对室和所述储存器连通的两个排放路径,每个所述排水路径形成有当所述控制阀处于中立状态时打开的中心开式的可变孔口。

    Hydraulic power steering apparatus
    3.
    发明授权
    Hydraulic power steering apparatus 失效
    液压动力转向装置

    公开(公告)号:US5638912A

    公开(公告)日:1997-06-17

    申请号:US339229

    申请日:1994-11-10

    IPC分类号: B62D5/07 B62D5/083

    CPC分类号: B62D5/083

    摘要: A power steering apparatus is composed a fluid source for discharging pressurized fluid, a power cylinder, a control valve responsive to operation of a steering wheel for supplying the power cylinder with pressurized fluid from the fluid source, and a reservoir. The control valve has a first control portion for controlling the flow of pressurized fluid from the fluid source to the reservoir, and a second control portion for controlling the flow of pressurized fluid to the power cylinder. The first control portion has four paths communicating with the fluid source and the reservoir, and each of the four paths is formed with a center-open variable orifice which opens when the control valve is in a neutral state. The second control portion has two supply paths communicating with the fluid source and a pair of chambers of the power cylinder, each of the two supply paths is formed with a semi-center-open variable orifice which opens when the control valve is in the neutral state, and two drain paths communicating with the chambers of the power cylinder and the reservoir, each of the two drain paths is formed with a center-closed variable orifice of which closes when the control valve is in the neutral state.

    摘要翻译: 动力转向装置包括用于排出加压流体的流体源,动力缸,响应于操作方向盘的控制阀,用于向动力缸提供来自流体源的加压流体和储存器。 控制阀具有用于控制加压流体从流体源流向储存器的第一控制部分和用于控制加压流体流向动力缸的第二控制部分。 第一控制部分具有与流体源和储存器连通的四个路径,并且四个路径中的每一个路径形成有当控制阀处于中立状态时打开的中心可开启​​的可变孔口。 第二控制部具有与流体源连通的两个供给路径和动力缸的一对室,两个供给路径中的每一个形成有半中心开口的可变孔,当控制阀处于中立状态时打开 状态和与动力缸和储存器的腔室连通的两个排放路径,两个排水路径中的每一个形成有中心闭合的可变孔口,当控制阀处于空档状态时,其可关闭。

    Power steering apparatus
    4.
    发明授权
    Power steering apparatus 失效
    动力转向装置

    公开(公告)号:US5538095A

    公开(公告)日:1996-07-23

    申请号:US489837

    申请日:1995-06-13

    CPC分类号: B62D5/083 B62D6/02

    摘要: A power steering apparatus comprises a fluid source for supplying pressurized fluid, a power cylinder having a pair of fluid chambers, a control valve, and a drain control mechanism. The control valve is composed of first and second control portions. The first control portion has four paths connecting the fluid source and the reservoir, and each of the four paths is formed with a variable orifice of center-open type. The second control portion has two supply paths communicating the fluid source with the fluid chambers of the power cylinder, each of the supply paths being formed with a variable orifice of center-open type, and two drain paths communicating the fluid chambers with the reservoir, each of the drain paths being formed with a variable orifice of center-closed type. The drain control mechanism is responsive to differential pressure between the fluid chambers of the power cylinder to control the communication of one fluid chamber under high pressure with the reservoir, and is responsive to a vehicle speed to control the communication of both fluid chambers with the reservoir.

    摘要翻译: 动力转向装置包括用于供应加压流体的流体源,具有一对流体室的动力缸,控制阀和排水控制机构。 控制阀由第一和第二控制部分组成。 第一控制部分具有连接流体源和储存器的四个路径,并且四个路径中的每一个形成有中心开放型的可变孔口。 第二控制部具有使流体源与动力缸的流体室连通的两个供给路径,每个供给路径形成有中心开放型的可变孔,以及将流体室与储存器连通的两个排出路径, 每个排水路径形成有中心关闭型的可变孔口。 排水控制机构响应于动力缸的流体室之间的差压,以控制高压下的一个流体室与贮存器的连通,并响应于车速来控制两个流体室与贮存器的连通 。

    Power steering apparatus
    5.
    发明授权
    Power steering apparatus 失效
    动力转向装置

    公开(公告)号:US06119803A

    公开(公告)日:2000-09-19

    申请号:US904429

    申请日:1997-07-31

    IPC分类号: B62D5/083 B62D5/10

    摘要: In a power steering apparatus having a control valve with a first control valve portion and a second control valve portion to enhance rigidity of a steering operation, an amount of an overlapping portion of an overlap variable orifice is designed larger than an amount of an unlapping portion of an untapped variable orifice in the control valve because of dispersion during manufacture. When the overlap variable orifice finishes overlapping, the unlapped variable orifice has already started unlapping. Therefore, since the overlap variable orifice and the unlapped variable orifice never become unlapping form simultaneously regardless of the dispersion, the control valve is capable of minimizing a difference of the flow between a plurality of the second control valve portion. As a result, the power steering apparatus relative to the invention prevents enlargement of noise caused by an unbalance of the flow between a plurality of the second control valve portions in the control valve.

    摘要翻译: 在具有带有第一控制阀部分的控制阀和用于增强转向操作的刚性的第二控制阀部分的动力转向装置中,重叠可变孔的重叠部分的量被设计成大于不重合部分的量 由于制造过程中的分散,控制阀中未开孔的可变孔口。 当重叠可变孔口完成重叠时,未重叠的可变孔口已经开始松开。 因此,由于重叠变量孔和未重叠的可变孔不会随着分散而同时变为不均匀的形状,所以控制阀能够最小化多个第二控制阀部之间的流动的差异。 结果,相对于本发明的动力转向装置防止由于控制阀中的多个第二控制阀部之间的流动的不平衡而引起的噪声的扩大。

    Power steering system including a rotary control valve with multiple
variable orifice configurations
    6.
    发明授权
    Power steering system including a rotary control valve with multiple variable orifice configurations 失效
    动力转向系统包括具有多个可变孔配置的旋转控制阀

    公开(公告)号:US5845737A

    公开(公告)日:1998-12-08

    申请号:US588922

    申请日:1996-01-19

    IPC分类号: B62D5/083

    CPC分类号: B62D5/083

    摘要: In a power steering apparatus comprising a pump, a reservior, a power cylinder having two opposite chambers, and a rotary control vale, the rotary control valve consists of a first control portion which communicates between the pump and the reservior, and a second control portion which communicates not only between the pump and the reservior but also with the power cylinder. In the first control portion, each of four underlapping variable orifices is so provided as to take the form of underlap in itself. In the second control portion, two underlapping variable orifices are provided on the side of the pump, and besides each of two overlapping variable orifices is so provided as to take the form of overlap in itself on the side of the reservior. In this manner, while a steering wheel is operated within a predetermined angle, an opening area of the overlapping variable orifice changes little. When the steering wheel is operated beyond the predetermined valve, the opening are increases sufficiently according to steering operation. As a result, a differential pressure between the chambers is prevented from originating at and around the neutral position of the steering wheel. Consequently, as for steering feeling, the rigidity of the steering operation at and around the neutral position is enhanced, and furthermore, a beginning point where the power assist is produced by operating the steering wheel from its neutral position is distinguished.

    摘要翻译: 在包括泵,储存器,具有两个相对室的动力缸和旋转控制阀的动力转向装置中,旋转控制阀由在泵和储存器之间连通的第一控制部分和第二控制部分 其不仅在泵和储存器之间而且与动力缸相通。 在第一控制部分中,四个重叠的可变孔中的每一个都被设置成以其本身的形式存在。 在第二控制部分中,在泵的侧面设置两个重叠的可变孔口,并且除了两个重叠的可变孔口中的每一个之外,还设置为在储存器的侧面上具有重叠的形式。 以这种方式,当方向盘在预定角度内操作时,重叠可变孔口的开口面积变化很小。 当方向盘操作超过预定阀时,开口根据转向操作而充分增加。 结果,防止了室之间的差压源于方向盘的中立位置处和周围。 因此,对于转向感觉,中立位置处及其周围的转向操作的刚性提高,此外,区分通过从中立位置操作方向盘而产生动力辅助的起点。

    Method for attaching tabs to electric wire ends
    8.
    发明授权
    Method for attaching tabs to electric wire ends 失效
    将接头连接到电线端的方法

    公开(公告)号:US5210923A

    公开(公告)日:1993-05-18

    申请号:US793078

    申请日:1991-11-15

    IPC分类号: H01R13/46 H01R43/00

    摘要: A method for attaching a wire-identifying tab to an electric wire end, the tab comprising a marking portion having identification mark and being a cylinder having a slit extending axially over the full length of the tab, the method comprising the steps of engaging the tab with a pair of rigid sheets in contact with each other at their upper portions, from their one ends and in parallel with them, subsequently inserting the wire end into the tab while the pair of sheets are displaced apart from each other perpendicular to the tab, and finally disengaging the sheets from the tab, thus fitting an outer surface of the wire end in the tab. An apparatus used in the method comprises a wire receiving section, a tab receiving section, at least one of the sections moves relative to the other to come into or out of contact therewith, the wire receiving section including a wire end supporter and a terminal supporter disposed with a distance substantially equal to the tab, the tab receiving section including a pair of rigid sheets extending parallel with the wire received on the section, a tab-holding space formed above the sheets so as to hold the tab, an urging means disposed remote from said section so as to elastically press the marking portion, and a retracting means retracting the sheets out of the space.

    摘要翻译: 一种用于将导线识别片附接到电线端的方法,所述突片包括具有识别标记的标记部分,并且是具有在所述突片的整个长度上轴向延伸的狭缝的圆柱体,所述方法包括以下步骤: 具有一对刚性片材在其上部彼此的上部彼此接触并且与它们平行,随后将线端部插入到突片中,同时一对片材垂直于突片彼此分离, 并且最后将片材从突片分离,从而将线端的外表面装配在突片中。 所述方法中使用的装置包括线容纳部分,片接收部分,所述部分中的至少一个部分相对于另一部分移动以与其接触或脱离接触,所述电线接收部分包括线端支持器和终端支架 所述突片接收部分包括一对平行于所述部分上的线平行延伸的刚性片;形成在所述片材上方以保持所述片状物的片状物保持空间,所述推动装置被布置 远离所述部分,以弹性地按压标记部分,以及将片材从空间中缩回的缩回装置。

    Motor driven portable crimper having a detection mechanism to
automatically turn off the motor
    9.
    发明授权
    Motor driven portable crimper having a detection mechanism to automatically turn off the motor 失效
    电动便携式卷边机具有自动关闭电机的检测机构

    公开(公告)号:US5819570A

    公开(公告)日:1998-10-13

    申请号:US957328

    申请日:1997-10-24

    IPC分类号: H01R43/042

    CPC分类号: H01R43/0428 Y10T29/53065

    摘要: A crimping station of a motor-driven portable crimper (A) has a movable head driven by a motor (M) to reciprocate straight towards and away from a fixed anvil. An automatic switch will automatically stop the motor upon detection of the movable head retracted from or having approached the anvil, so that the head and other members stand still for a while relative to the fixed anvil to allow the wire end to be inserted readily into the contact and then the contact thus crimped can easily be withdrawn from the crimping station. A manual switch is operable to restart the motor and resume the crimping process. A blind plate attached to and outside the frame is disposed near the crimping station so as to inhibit a user from erroneously inserting wire ends to the contacts which have not arrived at the station.

    摘要翻译: 电动便携式卷边机(A)的压接站具有由马达(M)驱动的可移动的头部,以使其朝向和远离固定的砧座往复运动。 在检测到从砧座靠近或已经接近砧座的可移动头部时,自动开关将自动停止电动机,使得头部和其他部件相对于固定砧座静止一段时间,以允许线端部容易地插入到 接触,然后由此压接的接触件可以容易地从压接站取出。 手动开关可操作以重新启动电机并恢复压接过程。 安装在框架外部和框架外的盲板设置在压接站附近,以防止使用者将导线端部错误地插入未到达工位的触点。