Portable curtain retraction device and system
    51.
    发明授权
    Portable curtain retraction device and system 有权
    便携式幕墙退缩装置及系统

    公开(公告)号:US07703499B2

    公开(公告)日:2010-04-27

    申请号:US11677804

    申请日:2007-02-22

    IPC分类号: A47H5/02

    摘要: A portable barrier retraction device and system for retracting and deploying barriers, such as theatrical curtains. The portable barrier retraction device for retracting and deploying barriers, such as theatrical curtains. The device includes a rotatable shaft in rotational communication with a first drum. The device further includes a detachable rotatable second drum rotational communication with the first drum. The second drum further including at least one spool configured to retract or deploy at least one line in response to rotation of the second drum.

    摘要翻译: 一种用于缩回和展开障碍物的便携式屏障缩回装置和系统,例如戏剧窗帘。 用于缩回和展开障碍物的便携式屏障缩回装置,例如戏剧窗帘。 该装置包括与第一鼓旋转连通的可旋转轴。 该装置还包括与第一滚筒旋转连接的可拆卸的可旋转的第二滚筒。 所述第二滚筒还包括至少一个卷轴,所述至少一个卷轴构造成响应于所述第二滚筒的旋转而缩回或展开至少一条线。

    Portable locking support structure
    52.
    发明授权
    Portable locking support structure 有权
    便携式锁定支撑结构

    公开(公告)号:US07703401B2

    公开(公告)日:2010-04-27

    申请号:US11295999

    申请日:2005-12-07

    IPC分类号: A47B91/00 A47B13/00 A47B3/06

    摘要: A portable support structure including a platform member having a primary platform connector and a secondary platform connector. The primary platform connector is configured to receive a primary support connector. The secondary platform connector is configured to receive a secondary support connector. The support structure also includes a primary support member including the primary support connector and a hook member. In addition, the support structure includes a secondary support member having a first end and a second end. The first end is detachably engaged with the secondary platform connector and the second end is in locking engagement with the hook member. The primary support connector includes structures that engage the primary platform connector and rotationally position the primary support member. The hook member includes a hook portion that engages and prevents the secondary support member disengaging upon a rotation of the secondary support member.

    摘要翻译: 一种便携式支撑结构,包括具有主平台连接器和次平台连接器的平台构件。 主平台连接器被配置为接收主支撑连接器。 辅助平台连接器被配置为接收辅助支撑连接器。 支撑结构还包括主支撑构件,其包括主支撑连接器和钩构件。 此外,支撑结构包括具有第一端和第二端的辅助支撑构件。 第一端可拆卸地与二级平台连接器接合,并且第二端与钩构件锁定接合。 主支撑连接器包括接合主平台连接器并且旋转地定位主支撑构件的结构。 钩构件包括钩部,其接合并防止辅助支撑构件在第二支撑构件的旋转时脱离。