利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

322 条记录 (耗时 0.012 秒)

    Shoe and drum brake
    41.
    发明授权
    Shoe and drum brake 失效
    鞋和鼓式制动器

    公开(公告)号：US4424888A

    公开(公告)日：1984-01-10

    申请号：US227761

    申请日：1981-01-23

    申请人： Leslie C. Chouings

    发明人： Leslie C. Chouings

    IPC分类号： B60T7/20 ,  F16D51/20

    CPC分类号： F16D51/20 ,  B60T7/206

    摘要： In a shoe and drum brake wherein the shoes can move circumferentially of the drum between first and second limit positions and are biased towards the first limit positions, there is provided for transmitting force from an actuator to the shoes a lever or hydraulic device capable of transmitting the force unequally to the shoes. The larger force urges the shoes towards their second limit positions while the smaller force urges the shoes towards their first limit positions. During forward rotation of the drum, the shoes remain in their first limit positions and can be applied radially to the drum by movement of the actuator. When the drum is rotating in the reverse direction, the larger force moves the shoes circumferentially of the drum so that the actuator fails to apply the shoes to the drum and establish a braking torque.

    摘要翻译： 在鞋和鼓式制动器中，其中鞋可以在第一和第二限位位置之间沿滚筒的周向移动并且朝向第一极限位置偏置，提供用于将来自致动器的力传递到鞋的能够传递的杆或液压装置 力量不平等的鞋子。 较大的力量促使鞋子朝向第二极限位置，而较小的力促使鞋子朝向其第一极限位置。 在滚筒正向旋转期间，鞋保持在其第一极限位置，并且可以通过致动器的移动径向地施加到滚筒。 当滚筒沿相反方向旋转时，较大的力使滚筒的圆周方向移动，使得致动器不能将鞋子施加到滚筒并建立制动扭矩。

    Drum brake having duo mode
    42.
    发明授权
    Drum brake having duo mode 失效
    鼓式制动器具有二重奏模式

    公开(公告)号：US4336867A

    公开(公告)日：1982-06-29

    申请号：US80809

    申请日：1979-10-01

    申请人： Ji Y. Woo

    发明人： Ji Y. Woo

    IPC分类号： F16D51/48 ,  F16D51/20 ,  F16D65/09 ,  F16D65/22 ,  F16D51/50

    CPC分类号： F16D65/09 ,  F16D51/20 ,  F16D65/22

    摘要： A drum brake assembly includes a pair of brake shoes which are carried by a backing plate and engageable with a hydraulic actuator. The hydraulic actuator is operable to move the pair of brake shoes from a rest position to a braking position. A strut extending between the pair of brake shoes cooperates with a parking arm to move the pair of brake shoes to the braking position during a parking brake application. A support assembly on the backing plate is disposed opposite the hydraulic actuator for the purpose of absorbing braking torque developed by the pair of brake shoes. The support assembly comprises a pair of slots and a lever. The lever is movable in response to movement of the parking arm to adjust the position of the pair of blocks relative to each other. In a first position the blocks are in abutment with the backing plate while in a second position the blocks are free to move a limited amount relative to the backing plate. Moreover, the lever imparts a separating force to the pair of brake shoes via the blocks during a parking brake application to expand the brake shoes radially. This expansion is in addition to the movement imparted to the brake shoes by the strut and parking arm.

    摘要翻译： 鼓式制动器组件包括一对制动蹄，其由背板承载并可与液压致动器接合。 液压致动器可操作以将一对制动蹄从静止位置移动到制动位置。 在一对制动踏板之间延伸的撑杆与停车臂配合，以在驻车制动应用期间将一对制动蹄移动到制动位置。 背衬板上的支撑组件设置成与液压致动器相对，以便吸收由该对制动蹄所产生的制动力矩。 支撑组件包括一对槽和杠杆。 杠杆可响应于驻车臂的移动而移动，以调节该对块相对于彼此的位置。 在第一位置，块与背板邻接，而在第二位置，块相对于背板自由地移动有限的量。 此外，在驻车制动器施加期间，杠杆通过该块向一对制动蹄施加分离力，以径向扩张制动蹄。 这种扩展是除了通过支柱和停车臂给制动蹄的运动之外。

    Shoe hold-down device in a drum brake
    43.
    发明授权
    Shoe hold-down device in a drum brake 失效
    鼓式制动器中的鞋扣式装置

    公开(公告)号：US4332311A

    公开(公告)日：1982-06-01

    申请号：US149749

    申请日：1980-05-14

    申请人： Yoshihisa Nomura

    发明人： Yoshihisa Nomura

    IPC分类号： F16D51/20 ,  F16D55/00 ,  F16D63/00 ,  F16D65/09 ,  F16D65/10 ,  F16D65/12

    CPC分类号： F16D63/004 ,  F16D51/20 ,  F16D65/09 ,  F16D65/10 ,  F16D65/12 ,  F16D2055/0037 ,  F16D2065/1308

    摘要： A drum brake wherein a pair of brake shoes are held down, without departing from a backing plate, by means of a single shoe hold-down spring. The spring is made of a wire, being bent and wound symmetrically about an axis, and held by retainers secured to the backing plate, so as not to be substantially hampered from swinging about the axis; it is contacted to the pair of shoes at a pair of farthest distant symmetrical points from the axis. The contacting load at the pair of points with the shoes is naturally equalized or balanced, because the spring is not substantially hampered from swinging about the axis.

    摘要翻译： 一种鼓式制动器，其中一对制动蹄借助于单个踩踏弹簧被压下而不脱离背板。 弹簧由电线制成，围绕轴线对称地弯曲并卷绕，并由固定在背板上的保持器保持，以免基本上阻碍绕轴线的摆动; 它与来自轴的一对最远的对称点与一对鞋接触。 由于弹簧基本上不阻碍围绕轴线摆动，所以与鞋子对的点处的接触载荷自然均衡或平衡。

    Self-adjusting drum brake
    44.
    发明授权
    Self-adjusting drum brake 失效
    自调鼓式制动器

    公开(公告)号：US4232766A

    公开(公告)日：1980-11-11

    申请号：US838921

    申请日：1977-10-03

    申请人： Kurt Rupprecht

    发明人： Kurt Rupprecht

    IPC分类号： F16D51/20 ,  F16D65/54 ,  F16D65/52

    CPC分类号： F16D65/546 ,  F16D51/20

    摘要： A drum brake of the inner shoe type has a self-adjusting device which comprises a push rod, one end of which cooperates with a first brake shoe, while the other end cooperates with a second brake shoe with the intermediary of an adjusting wedge, the position of which determines the effective length of the push rod. In the released state of the brake, the brake shoes abut the push rod-and-wedge assembly, whereby an air gap is defined between the brake lining and the drum. A clamping spring urges the push rod and the second brake shoe against the one and the other wedge flank. The wedge angle of the adjusting wedge is so selected that normally no shifting of the wedge occurs. The push rod has an abutting and displacing arrangement which--as soon as the brake shoe travel exceeds, during brake actuation, a basic structurally determined desired air gap--shifts the push rod against the force of the clamping spring and thus loosens the wedge. As a result, the wedge is advanced to a corresponding extent, thus increasing the effective length of the push rod-and-wedge assembly.

    摘要翻译： 内靴型的鼓式制动器具有自调节装置，该自动调节装置包括一个推杆，其一端与第一制动蹄协作，而另一端与第二制动蹄协调，中间具有调节楔， 其位置决定了推杆的有效长度。 在制动器的释放状态下，制动蹄与推杆组合件抵接，由此在制动衬片和滚筒之间限定气隙。 夹紧弹簧推动推杆和第二制动靴抵靠一个和另一个楔形侧面。 调整楔的楔角是如此选择的，通常不会发生楔的移动。 推杆具有邻接和移位装置 - 一旦制动靴行程超过，在制动器致动期间，基本的结构确定的期望的气隙 - 抵抗夹紧弹簧的力而移动推杆，从而松开楔形件。 结果，楔形件前进到相应的程度，从而增加推杆和楔形组件的有效长度。

    Automatic adjuster for a shoe-drum brake
    45.
    发明授权
    Automatic adjuster for a shoe-drum brake 失效
    自动调节器用于制动鼓式制动器

    公开(公告)号：US3874481A

    公开(公告)日：1975-04-01

    申请号：US40437573

    申请日：1973-10-05

    申请人： GIRLING LTD

    发明人： MARGETTS HUGH GRENVILLE

    IPC分类号： F16D65/54 ,  F16D51/20 ,  F16D65/52

    CPC分类号： F16D51/20 ,  F16D65/52

    摘要： In an automatic adjuster for a shoe-drum brake in which a twopart strut of adjustable length extends between the shoes adjacent to their actuated ends one part of the strut is formed by a bell-crank lever pivoted on a pin having limited movement relative to the other part which carries a non-rotatable peripherally toothed stud, and one arm of the lever is engaged in a clearance opening in a web of a shoe while the other arm has an arcuate toothed edge resiliently urged into engagement with the stud.

    摘要翻译： 在用于鞋鼓式制动器的自动调节器中，其中可调节长度的两部分支柱在彼此致动的端部之间的鞋子之间延伸。支柱的一部分由在具有有限的运动相对的销上枢转的钟形曲柄杆形成 到另一部分，其携带不可旋转的周向齿形螺柱，并且杆的一个臂接合在鞋的腹板中的间隙开口中，而另一个臂具有弹性地推动成与螺柱接合的弓形齿形边缘。