Locking joint for collapsible ladders and other structures
    7.
    发明授权
    Locking joint for collapsible ladders and other structures 有权
    可折叠梯子和其他结构的锁紧接头

    公开(公告)号:US09222307B2

    公开(公告)日:2015-12-29

    申请号:US13584064

    申请日:2012-08-13

    摘要: A rigid structure such as a ladder is disclosed having rotating hinges that allow the ladder to fold up and/or be disassembled and assembled. The hinge or hinges can be provided between ladder sections with one ladder section having a male hinge element, and another having a female hinge element. A cam element provided with the female hinge element can be moved between an unlocked position in which the ladder sections can rotate with respect to each other, and a locked position in which the structure is rigid.

    摘要翻译: 公开了诸如梯子的刚性结构,其具有允许梯子折叠和/或拆卸和组装的旋转铰链。 铰链或铰链可以设置在梯形部分之间,具有一个具有阳铰链元件的梯子部分,另一个具有阴铰链元件。 设置有阴铰链元件的凸轮元件可以在梯形部分可以相对于彼此旋转的解锁位置和结构刚性的锁定位置之间移动。

    Powered rope ascender and portable rope pulling device
    9.
    发明授权
    Powered rope ascender and portable rope pulling device 有权
    动力绳上升架和便携式拉绳装置

    公开(公告)号:US07581715B2

    公开(公告)日:2009-09-01

    申请号:US11780596

    申请日:2007-07-20

    IPC分类号: B66D1/36

    摘要: A device for pulling an elongate member includes a powered rotational motor having an output and a rotating drum connected to the output of said rotational motor where the rotating drum has a longitudinal axis and a circumference. The device further includes a guide mechanism for guiding the resilient elongate element onto, around at least a portion of the circumference of, and off of, the rotating drum. When the powered rotational motor turns the rotating drum, the rotating drum thereby continuously pulls the resilient elongate element through the device.

    摘要翻译: 拉伸细长构件的装置包括具有输出的动力旋转马达和连接到所述旋转马达的输出的旋转鼓,其中旋转滚筒具有纵向轴线和圆周。 该装置还包括用于将弹性细长元件引导到旋转鼓的圆周的至少一部分周围的引导机构。 当动力旋转马达转动旋转滚筒时,旋转滚筒从而连续拉动弹性细长元件穿过该装置。