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公开(公告)号：US08944214B2
公开(公告)日：2015-02-03
申请号：US13888362
申请日：2013-05-06
IPC分类号： E06C7/44
摘要： An automatic locking system for a self-adjustable leveling ladder engages when the ladder is placed on the ground and disengages when the ladder is lifted off the ground. The automatic locking system includes a clamping mechanism, a first support, and a second support. The clamping mechanism includes a first member, a second member, a central pivot, a pair of key plates, and a cross rail. The first support pivotally connects to the first member, and the second support pivotally connects to the second member. The first member hingedly connects to the second member by the central pivot, which allows the key plates to grasp the cross rail if the first support and the second support are pressed against the ground. The first member and the second member are able to slide along the cross rail, which properly adjusts the first support and the second support for an uneven ground surface.
摘要翻译： 当梯子被放置在地面上时，用于自调节水平梯的自动锁定系统接合，当梯子从地面上抬起时，该系统脱离接合。 自动锁定系统包括夹紧机构，第一支撑件和第二支撑件。 夹紧机构包括第一构件，第二构件，中心枢轴，一对键板和十字轨。 第一支撑件枢转地连接到第一构件，并且第二支撑件枢转地连接到第二构件。 第一构件通过中心枢轴铰接地连接到第二构件，如果第一支撑件和第二支撑件被压靠在地面上，则允许按键板抓住横梁。 第一构件和第二构件能够沿着十字轨道滑动，其适当地调节第一支撑件和第二支撑件以用于不平坦的地面。
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公开(公告)号：US06938354B2
公开(公告)日：2005-09-06
申请号：US10322397
申请日：2002-12-17
CPC分类号： C07K16/32 , C07K16/40 , C07K2317/14 , C07K2317/30 , C07K2317/56 , C07K2317/622 , C12N9/88 , G01B3/1061 , G01B3/1084 , G01B2003/1089 , G01N2333/82
摘要： A measurement marking and scoring device includes a platform configured to be affixed to a base of a tape measure. A marking member extends from the platform and defines a sharpened edge or point marking surface at a lower end thereof. An alignment tab extends from the marking member so as to be positioned over indicia of a tape extended from the tape measure so that measurement marks or score lines can be created on a working surface upon application of pressure to the marking member or tape measure. In another form, the device is integrally formed into a tape measure such that the marking member extends from a front edge of the tape measure.
摘要翻译： 测量标记和评分装置包括被配置为固定到卷尺的基部的平台。 标记构件从平台延伸并且在其下端限定了锋利的边缘或点标记表面。 对准翼片从标记构件延伸以便被放置在从卷尺延伸的带的标记上，使得可以在对标记构件或卷尺测量施加压力时在工作表面上产生测量标记或刻痕线。 在另一种形式中，装置整体地形成为卷尺，使得标记构件从卷尺的前边缘延伸。
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公开(公告)号：US20130292525A1
公开(公告)日：2013-11-07
申请号：US13888362
申请日：2013-05-06
IPC分类号： E06C7/44
摘要： An automatic locking system for a self-adjustable leveling ladder engages when the ladder is placed on the ground and disengages when the ladder is lifted off the ground. The automatic locking system includes a clamping mechanism, a first support, and a second support. The clamping mechanism includes a first member, a second member, a central pivot, a pair of key plates, and a cross rail. The first support pivotally connects to the first member, and the second support pivotally connects to the second member. The first member hingedly connects to the second member by the central pivot, which allows the key plates to grasp the cross rail if the first support and the second support are pressed against the ground. The first member and the second member are able to slide along the cross rail, which properly adjusts the first support and the second support for an uneven ground surface.
摘要翻译： 当梯子被放置在地面上时，用于自调节水平梯的自动锁定系统接合，当梯子从地面上抬起时，该系统脱离接合。 自动锁定系统包括夹紧机构，第一支撑件和第二支撑件。 夹紧机构包括第一构件，第二构件，中心枢轴，一对键板和十字轨。 第一支撑件枢转地连接到第一构件，并且第二支撑件枢转地连接到第二构件。 第一构件通过中心枢轴铰接地连接到第二构件，如果第一支撑件和第二支撑件被压靠在地面上，则允许按键板抓住横梁。 第一构件和第二构件能够沿着十字轨道滑动，其适当地调节第一支撑件和第二支撑件以用于不平坦的地面。
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公开(公告)号：US06494513B2
公开(公告)日：2002-12-17
申请号：US10080238
申请日：2002-02-21
IPC分类号： B65G712
CPC分类号： B65G7/12
摘要： A hand tool for gripping and moving building materials includes a linkage having a grip at a first end. A plate having a gripping face is pivotally attached to a second end of the linkage. A generally U-shaped bracket is pivotally attached to the linkage adjacent to the plate and extends beyond the second end of the linkage so that a gripping face thereof is disposed generally opposite the plate gripping face. Upon inserting a building material between the plate and bracket gripping faces and lifting the linkage upwardly, the plate and bracket pivot so that the gripping faces firmly contact and grip opposite sides of the building material for transport.
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