Alignment and locking mechanism for extendible jack stand
    1.
    发明授权
    Alignment and locking mechanism for extendible jack stand 失效
    可扩展插座的对准和锁定机构

    公开(公告)号:US5379974A

    公开(公告)日:1995-01-10

    申请号:US872432

    申请日:1992-04-23

    摘要: An extendible multi-frame stand includes at least three frames arranged in a telescoping relationship, having a single coherent alignment and locking mechanism which includes alignment means for preventing relative rotation between the first and second frames, alignment means for preventing relative rotation between the second and third frames, means for locking the second and third frames at the limits of their longitudinal extension positions, and cam-operated releasable locking means for controlling extension and retraction of the second and third frames relative to each other and to the first frame.

    摘要翻译: 可伸展的多框架支架包括以伸缩关系布置的至少三个框架,其具有单个相干对齐和锁定机构,其包括用于防止第一和第二框架之间的相对旋转的对准装置,用于防止第二和第二框架之间的相对旋转的对准装置 第三框架,用于在其纵向延伸位置的极限处锁定第二和第三框架的装置,以及用于控制第二和第三框架相对于彼此和第一框架的伸缩的凸轮操作的可释放锁定装置。

    Alignment and release mechanism for two-part jack system
    2.
    发明授权
    Alignment and release mechanism for two-part jack system 失效
    两部分千斤顶系统的对准和释放机构

    公开(公告)号:US4960264A

    公开(公告)日:1990-10-02

    申请号:US350111

    申请日:1989-05-09

    IPC分类号: B66F1/08 B66F5/04

    CPC分类号: B66F5/04 B66F1/08

    摘要: A two-part jack system includes a mechanical jack stand with a ratchet mechanism and a ratchet release, and a power unit that may be selectively aligned with and attached to the jack stand for raising or lowering it. A unitary control mechanism carried by the power unit is adapted to selectively lock the power unit in an aligned position relative to the jack stand, and also to selectively release the ratchet release of the jack stand. A locking mechanism is carried in part by the jack stand and in part by the power unit. The unitary control mechanism has three different operating positions. In one operating position the locking mechanism is kept locked while the ratchet release is left in an unreleased state; in a second operating position the locking mechanism is kept locked while the ratchet release is released; and in the third operating position the locking mechanism is held in an unlocked condition while the ratchet release is left in an unreleased state. The power unit has an operating handle, and a single lever which operates the unitary control mechanism is carried on the power unit operating handle for convenient access and easy control by a human operator.

    摘要翻译: 两部分千斤顶系统包括具有棘轮机构和棘轮释放的机械千斤顶支架,以及可选择性地对准并附接到千斤顶支架以用于升高或降低其的动力单元。 由动力单元承载的整体控制机构适于将动力单元相对于千斤顶支架选择性地锁定在对准位置,并且还选择性地释放千斤顶支架的棘轮释放。 锁定机构部分由承载架承载,部分由动力单元承载。 统一控制机制有三种不同的运行状态。 在一个操作位置,锁定机构保持锁定,同时棘轮释放被保持在未释放状态; 在第二操作位置,锁定机构在释放棘轮释放时保持锁定; 并且在第三操作位置,锁定机构保持在解锁状态,同时棘轮释放保持在未释放状态。 电源单元具有操作手柄,操作单元控制机构的单个操作杆承载在动力单元操作手柄上,方便操作,操作人员易于控制。

    Apparatus for aligning and releasing a two-part jack system
    3.
    发明授权
    Apparatus for aligning and releasing a two-part jack system 失效
    用于对准和释放两部分千斤顶系统的装置

    公开(公告)号:US5183235A

    公开(公告)日:1993-02-02

    申请号:US590080

    申请日:1990-09-28

    IPC分类号: B66F1/08 B66F5/04

    CPC分类号: B66F1/08 B66F5/04 Y10T403/604

    摘要: A two-part jack system includes a mechanical jack stand with a ratchet mechanism and a ratchet release, and a power unit that may be selectively aligned with and attached to the jack stand for raising or lowering it. A unitary control mechanism carried by the power unit selectively locks the power unit in an aligned position relative to the jack stand, and also selectively releases the ratchet release of the jack stand. A locking mechanism is carried in part by the jack stand and in part by the power unit. The unitary control mechanism has three different operating positions. In one operating position the locking mechanism is kept locked while the ratchet release is left in an unreleased state; in a second operating position the locking mechanism is kept locked while the ratchet release is released; and in the third operating position the locking mechanism is held in an unlocked condition while the ratchet release is left in an unreleased state. The power unit has an operating handle, and a single lever which operates the unitary control mechanism is carried on the power unit operating handle for convenient access and easy control by a human operator.

    摘要翻译: 两部分千斤顶系统包括具有棘轮机构和棘轮释放的机械千斤顶支架,以及可选择性地对准并附接到千斤顶支架以用于升高或降低其的动力单元。 由动力单元承载的整体控制机构将功率单元相对于千斤顶支架选择性地锁定在对准位置,并且还选择性地释放千斤顶支架的棘轮释放。 锁定机构部分由承载架承载,部分由动力单元承载。 统一控制机制有三种不同的运行状态。 在一个操作位置,锁定机构保持锁定,同时棘轮释放被保持在未释放状态; 在第二操作位置,锁定机构在释放棘轮释放时保持锁定; 并且在第三操作位置,锁定机构保持在解锁状态,同时棘轮释放保持在未释放状态。 电源单元具有操作手柄,操作单元控制机构的单个操作杆承载在动力单元操作手柄上,方便操作,操作人员易于控制。

    Hydraulic power unit for jack system
    4.
    发明授权
    Hydraulic power unit for jack system 失效
    千斤顶液压动力装置

    公开(公告)号:US5065983A

    公开(公告)日:1991-11-19

    申请号:US504552

    申请日:1990-04-03

    申请人: Clyde E. Slay

    发明人: Clyde E. Slay

    IPC分类号: B66F5/04

    CPC分类号: B66F5/04

    摘要: A hydraulic power unit for a two-part jack system, having lifting arms which are raised or extended by means of hydraulic power whenever an associated jack stand is to be either raised or extended. The necessary hydraulic pressure is generated manually, by use of a hand pump. The power unit includes a single release valve which operates automatically as an excess-pressure bleed-off valve whenever the hydraulic cylinder pressure exceeds design capacity, and is also adapted to be controlled manually from the handle of the power unit for unloading total hydraulic pressure whenever the lifting arms are to be lowered. The release valve and all of its associated mechanisms are mounted in or on a single metallic block which is very easily manufacturable.

    摘要翻译: 一种用于两部分千斤顶系统的液压动力单元,具有提升臂,每当相关的千斤顶架被升高或延伸时,其提升或借助于液压动力来延伸。 通过使用手动泵手动生成必要的液压。 动力单元包括一个单独的释放阀,每当液压缸压力超过设计能力时,其自动地作为过压泄放阀进行操作,并且还适于从动力单元的手柄手动控制以便每当卸载总液压时 提升臂将被降下。 释放阀及其所有相关联的机构安装在非常容易制造的单个金属块中或上。

    Extendible jack stand
    5.
    发明授权
    Extendible jack stand 失效
    可扩展插座

    公开(公告)号:US5110089A

    公开(公告)日:1992-05-05

    申请号:US503297

    申请日:1990-04-02

    申请人: Clyde E. Slay

    发明人: Clyde E. Slay

    IPC分类号: B66F3/10 B66F13/00

    CPC分类号: B66F13/00 B66F3/10

    摘要: An extendible jacking apparatus including first, second and third normally vertical frames arranged in telescoping relationship, and containing a locking mechanism for automatically locking the first and second frames together while the third frame is being raised, locking the second and third frames together when the third frame is fully raised, and unlocking the first and second frames to allow extension of the second frame. Conversely, the locking mechanism is automatically reversible as the jack is lowered, unlocking the second and third frames and relocking the first and second frames upon the second frame being fully retracted into the first, allowing the third frame to allow be fully retracted into the first and second frames.

    摘要翻译: 一种可伸缩装置,包括以伸缩关系布置的第一,第二和第三正常垂直框架,并且包含用于在第三框架被升起时自动将第一框架和第二框架锁定在一起的锁定机构,当第三框架在第三框架 框架被完全升高,并且解锁第一和第二框架以允许第二框架的延伸。 相反地​​,当插座下降时,锁定机构自动地可逆,解锁第二和第三框架,并且在第二框架完全缩回到第一框架中时重新锁定第一和第二框架,从而允许第三框架被完全缩回到第一框架 和第二帧。