Brake fluid pressure retaining unit
    81.
    发明授权
    Brake fluid pressure retaining unit 有权
    制动液压力保持单元

    公开(公告)号:US06336689B1

    公开(公告)日:2002-01-08

    申请号:US09517524

    申请日:2000-03-02

    CPC classification number: B60T17/16 B60T7/122 B60T13/686 Y10S188/02 Y10S303/90

    Abstract: A brake fluid pressure retaining unit for a vehicle comprises a solenoid valve SV arranged in a brake fluid passage FP between a master cylinder MC and a wheel cylinder WC so as to shut off or communicate the brake fluid passage FP. In the case that a transmission of the vehicle is shifted to a driving position, the solenoid valve SV is switched to a shut-off position when the vehicle stops with a brake pedal BP depressed. The solenoid valve SV is switched to a communicating position when driving force is exerted on the vehicle. Brake fluid pressure is retained within the wheel cylinder WC when the solenoid valve SV is in the shut-off position. The brake fluid pressure within the wheel cylinder is retained after releasing the brake pedal so that braking force continues to act on the vehicle. The brake fluid pressure retaining unit comprises control means CU such that when the solenoid valve is in the shut-off position and the transmission is shifted to a non-driving position, the solenoid valve SV is returned to the communicating position on condition that depression of the brake pedal BP is released.

    Abstract translation: 一种用于车辆的制动液压力保持单元包括:在主缸MC和轮缸WC之间布置在制动流体通道FP中的电磁阀SV,以便切断或连通制动流体通道FP。 在车辆的变速器转移到驾驶位置的情况下,当制动踏板BP压下时车辆停止时,电磁阀SV切换到关闭位置。 当驱动力施加在车辆上时,电磁阀SV切换到连通位置。 当电磁阀SV处于关闭位置时,制动液压力保持在轮缸WC内。 在释放制动踏板之后,保持轮缸内的制动液压力,使得制动力继续作用在车辆上。 制动液压力保持单元包括控制装置CU,使得当电磁阀处于关闭位置并且变速器移动到非驱动位置时,电磁阀SV返回到连通位置, 制动踏板BP被释放。

    Brake-booster device partial vacuum type for a vehicle fitted with
direct braking control means
    83.
    发明授权
    Brake-booster device partial vacuum type for a vehicle fitted with direct braking control means 失效
    配备有直接制动控制装置的车辆的制动助力器部分真空型

    公开(公告)号:US5454279A

    公开(公告)日:1995-10-03

    申请号:US122556

    申请日:1993-09-30

    CPC classification number: B60T8/4854 B60T13/569 B60T7/12 Y10S188/02

    Abstract: The invention covers a brake-booster of the partial vacuum type comprising a direct braking control mechanism (hill-holder or traction control). In order to implement these functions, the piston (20, 22) of the booster is "double" through a partition (52) which is attached securely to the piston and defines with the piston a third chamber (50). This chamber is connected by a flexible pipe (66) and a double valve (72) either to partial vacuum (78) or to atmospheric pressure (76).

    Abstract translation: PCT No.PCT / FR93 / 00866 Sec。 371日期:1993年9月30日 102(e)1993年9月30日PCT 1993年9月10日PCT公布。 第WO94 / 07716号公报 日期1994年04月14日。本发明涉及部分真空型的制动助力器,其包括直接制动控制机构(山体保持器或牵引力控制)。 为了实现这些功能,增压器的活塞(20,22)通过分隔件(52)“双”,该分隔件牢固地附接到活塞并且与活塞一起限定第三室(50)。 该室通过柔性管(66)和双阀(72)连接到部分真空(78)或大气压(76)。

    Modulator assembly
    85.
    发明授权
    Modulator assembly 失效
    调制器总成

    公开(公告)号:US4922121A

    公开(公告)日:1990-05-01

    申请号:US272440

    申请日:1988-11-17

    Applicant: Philip A. Taft

    Inventor: Philip A. Taft

    CPC classification number: B60T13/686 B60T8/4266 Y10S188/02

    Abstract: A modulator assembly for a vehicle braking system includes a valve means for isolating a master cylinder from a brake actuator when a wheel slip condition arises at a braked wheel. Pressure modifying means is provided in the form of a piston which is moved axially by rotation of a motor armature 11 via a screw threaded connection to modify the braking pressure to correct the slip condition. Axial movement of the armature 11 moves a valve stem axially to close the valve means.

    Wheelchair with combined wheel lock and hill holder
    86.
    发明授权
    Wheelchair with combined wheel lock and hill holder 失效
    轮椅组合轮锁和山丘

    公开(公告)号:US4887830A

    公开(公告)日:1989-12-19

    申请号:US174825

    申请日:1988-03-29

    Abstract: A wheel chair (A) has at least one wheel (50) rotatably mounted to a side frame (14). A combined wheel lock and hill holder assembly (D) is mounted adjacent an outermost peripheral surface of a tire (60) mounted to a rim (58) of the wheel. The wheel lock and hill holder assembly has a linkage including a handle member (74) and a brake lever (80) both pivotally connected to the base. A link (84) is pivotally connected in between. Shifting the handle member causes the brake lever to move an axle (90) toward and away from the peripheral surface of the tire. A cam surface (94) having a plurality of projections (102) is rotatably mounted on the axle. In a first mode (FIG. 3), the wheel is free rolling. In a second mode (FIG. 4), the cam surface is moved by the handle into firm friction engagement with the tire peripheral surface to lock the wheel against any rotation. In a third mode (FIG. 5), the cam surface is spring biased into engagement with the wheel such that rotation in one direction is permitted but rotation in the opposite direction causes increasing engagement between the cam and the tire peripheral surface locking the wheel against rotation in that direction.

    Abstract translation: 轮椅(A)具有可旋转地安装到侧框架(14)的至少一个轮(50)。 组合的车轮锁和山体保持器组件(D)安装在安装到车轮的轮辋(58)的轮胎(60)的最外周表面附近。 轮锁和小山架组件具有包括枢转地连接到基座的手柄构件(74)和制动杆(80)的联动装置。 连杆(84)在其间枢转地连接。 移动手柄构件使得制动杆使轴(90)朝向和远离轮胎的周边表面移动。 具有多个突起(102)的凸轮表面(94)可旋转地安装在轴上。 在第一模式(图3)中,车轮是自由滚动的。 在第二模式(图4)中,凸轮表面被手柄移动,与轮胎周边表面形成牢固的摩擦接合,从而锁定车轮以避免任何旋转。 在第三模式(图5)中,凸轮表面被弹簧偏置成与车轮接合,使得允许在一个方向上的转动,但在相反方向上的旋转会导致凸轮与轮胎周向表面之间的接合增加, 在该方向旋转。

    Control circuit for brake booster vehicular hill holder system
    87.
    发明授权
    Control circuit for brake booster vehicular hill holder system 失效
    制动助力车载山体系统控制电路

    公开(公告)号:US4681196A

    公开(公告)日:1987-07-21

    申请号:US642619

    申请日:1984-08-20

    Abstract: A brake booster (10, 210, 310) connected to a control circuit (120) provides a system for the continued braking of a vehicle when the vehicle is situated on an incline and the brake pedal (92) is released by the operator. Continued brake application is accomplished by utilizing a control circuit (120) responsive to vehicular attitude, clutch pedal position, ignition status, vehicular speed, and vehicular direction. The control circuit (120) is connected to the combination of a check valve and three-way solenoid valve (100, 200, 300) connected to a movable wall brake booster (10, 210, 310). The combination valve (100) is connected to a flexible hose (110) disposed interiorily of the booster (10), the other end of the flexible hose (110) connected to the input opening (32) of a three-way poppet valve (70) located at the central hub (30) of the booster (10). When the control circuit (120) senses that the vehicle is on an incline, the clutch pedal depressed, the ignition "on", the speed is zero, and the vehicle not backing up, it actuates the three-way solenoid of valve (100) which continues to supply a first fluid pressure to the front booster chamber (40) while supplying a second fluid pressure for the rear booster chamber (50) via the flexible hose (110) and poppet valve (70). The vehicle operator may release the brake pedal (92) which returns slightly toward an inactive position and which opens slightly valve (70), with the brakes remaining activated because the second fluid pressure is provided to the rear chamber (50) via the hose connection (110) and valve (70) to maintain the axially displaced position of the movable wall (24).

    Abstract translation: 连接到控制电路(120)的制动助力器(10,210,310)当车辆位于倾斜处并且制动踏板(92)被操作者释放时提供用于车辆的继续制动的系统。 通过利用响应于车辆姿态,离合器踏板位置,点火状态,车速和车辆方向的控制回路(120)来实现连续制动应用。 控制电路(120)连接到连接到可动壁式制动助力器(10,210,310)的止回阀和三通电磁阀(100,200,300)的组合。 组合阀(100)连接到设置在增压器(10)内部的柔性软管(110),柔性软管(110)的另一端连接到三通提升阀的输入开口(32) 70),位于增压器(10)的中心毂(30)处。 当控制电路(120)感测到车辆处于倾斜状态时,离合器踏板压下,点火“开”,速度为零,并且车辆不起动,其致动阀门(100)的三通电磁阀 ),其通过柔性软管(110)和提升阀(70)为后辅助室(50)提供第二流体压力,继续向前增压室(40)提供第一流体压力。 车辆操作者可以释放制动踏板(92),该制动踏板(92)稍微朝非活动位置返回,并且稍微打开阀(70),由于第二流体压力经由软管连接件被提供给后室(50),制动器保持启动 (110)和阀(70)以保持可动壁(24)的轴向位移位置。

    Combined vehicle service and parking brake control mechanism
    89.
    发明授权
    Combined vehicle service and parking brake control mechanism 失效
    组合车辆服务和驻车制动控制机构

    公开(公告)号:US4462487A

    公开(公告)日:1984-07-31

    申请号:US372940

    申请日:1982-04-29

    Abstract: A brake pedal contacts a pin holding the push rod for the master cylinder, applying the hydraulic service brakes in the normal manner when the pedal is depressed. When the transmission lever is shifted into the park position a solenoid type servo is energized, engaging a pawl, mounted on the brake pedal, with a gear sector pivoted about the pivot point of the brake pedal. A one-way spring clutch is energized to hold the link in which the push rod pin is installed in the applied position during parking brake apply, retaining hydraulic brake pressure during that operation. When shifting to park, the brake pedal is raised by a vacuum servo so that the pedal can be actuated to apply the parking brake without contacting the push rod pin, and therefore without hydraulic pressure resistance. Movement of the pedal with the pawl engaged exerts tension on the parking brake cable through the gear sector to apply to parking the brake. When the ignition key is turned off, the spring clutch is released and the hydraulic service brakes are released. The pawl is retracted when the ignition key is turned off, and another spring clutch prevents release of the parking brake. This clutch is released upon shifting the transmission lever from park. A circuit is provided which prevents reengagement of the pawl until the transmission lever is shifted out of and then back into park.

    Abstract translation: 制动踏板接触保持主缸的推杆的销钉,当踏板被压下时以正常方式施加液压行车制动器。 当传动杆移动到停放位置时,螺线管型伺服器被通电,与安装在制动踏板上的棘爪接合,围绕制动踏板的枢转点枢转的齿轮部分。 单向弹簧离合器通电以在驻车制动期间保持其中安装有推杆销的连杆在施加位置,在该操作期间保持液压制动压力。 当转移顶部时,制动踏板由真空伺服器升高,使得踏板可以被致动以施加驻车制动器而不接触推杆销,因此没有液压阻力。 踏板与棘爪接合的运动通过齿轮部分在驻车制动器电缆上施加张力,以应用于停车制动。 当点火钥匙关闭时,释放弹簧离合器并释放液压制动器。 当点火钥匙关闭时,棘爪缩回,另一个弹簧离合器防止驻车制动器松开。 将传动杆从公园移开时,释放该离合器。 提供了一种电路,其防止棘爪的重新接合,直到传动杆移出并且然后返回到停车。

    Tow vehicle with anti-back up wheels
    90.
    发明授权
    Tow vehicle with anti-back up wheels 失效
    拖车与反向轮

    公开(公告)号:US3750593A

    公开(公告)日:1973-08-07

    申请号:US3750593D

    申请日:1971-03-08

    Inventor: ZETTERLUND S

    CPC classification number: F16D41/067 B61B10/04 Y10S188/02

    Abstract: A tow vehicle adapted to be guided for movement along a slot is provided with swivel castor wheels at the front end of the vehicle. The front castor wheels are provided with roller clutch bearings which act as a brake to prevent the vehicle from being moved in a rearward direction.

    Abstract translation: 适于被引导以沿着狭槽移动的拖车车辆在车辆的前端设置有旋转脚轮。 前轮脚轮设置有用作制动器以防止车辆沿向后方向移动的滚子离合器轴承。

Patent Agency Ranking