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    Hand tool providing double compound leverage to the jaws
    13.
    发明授权
    Hand tool providing double compound leverage to the jaws 有权
    手工工具为钳口提供双重复合杠杆

    公开(公告)号：US07346991B1

    公开(公告)日：2008-03-25

    申请号：US11169453

    申请日：2005-06-29

    申请人： Paul M. Janson

    发明人： Paul M. Janson

    IPC分类号： B26B13/00

    CPC分类号： B26B13/26 ,  A01G3/02

    摘要： A hand tool for use by one hand provides double compound leverage of the force exerted on the handles to the jaws. This is achieved by adding additional pivots and lever arms between the handles and the jaws. The jaws may take the form of a sheet metal snip or a pruning shear.

    摘要翻译： 一只手使用的手动工具提供了施加在颚柄手柄上的力的双重复合杠杆作用。 这通过在把手和钳口之间添加额外的枢轴和杠杆臂来实现。 夹爪可以采取钣金切割或修枝剪的形式。

    Pliers
    14.
    发明授权
    Pliers 失效
    钳

    公开(公告)号：US06408725B1

    公开(公告)日：2002-06-25

    申请号：US09879264

    申请日：2001-06-12

    申请人： Paul M. Janson

    发明人： Paul M. Janson

    IPC分类号： B25B704

    CPC分类号： B25B7/18 ,  B25B7/10 ,  B25B7/12 ,  B25B7/14

    摘要： Slip-joint pliers of the present invention comprise, in one embodiment, a pair of compound handles pivotally attached to jaw means being upper and lower jaw members having a manually adjustable slip-joint therein for providing at least two different maximum jaw opening positions, each having a different separation angle. The jaw openings are selectable by movement of a lever, for example, attached to a keyed pivot pin in the slip-joint. The jaw openings are selectable with minimal movement of the compound handles as a result of spring biasing between the jaw members and abutting engagement with the compound handles. A further embodiment without the compound handles has the spring biasing between the jaw arms and a limiting bracket, for example, mounted on pivot pins in the handles attached to the jaw arms to restrict the separation of the handles in an outwardly direction so that the spring will constantly bias the jaw arms apart so that the operation of the lever described herein, or other device, functions in a similar manner as in the compound pliers. In the first embodiment, for example, operation of the manual slip-joint causes the jaw members to automatically separate to achieve a large maximum jaw opening position. The method of using the pliers of the present invention requires that the manually adjustable slip-joint be positioned in a disengaged mode to allow the jaw members to move to a predetermined separation angle. At which point, the slip-joint is engaged which allows the use of the pliers to grip work pieces of different sizes. By use of either one or both hands, the jaw members may be moved to another predetermined separation angle.

    摘要翻译： 在一个实施例中，本发明的滑动接合钳包括一对可枢转地连接到钳口装置上的复合手柄，其是上和下钳口构件，其中具有可手动调节的滑动接头，用于提供至少两个不同的最大钳口打开位置 具有不同的分离角度。 钳口可通过杠杆的移动来选择，例如，连接到滑动接头中的键锁枢轴销。 由于弹簧偏置在夹爪构件之间并与复合手柄的抵接接合，所以可以选择复合手柄的最小运动。 没有复合手柄的另一个实施例具有弹簧偏置在颚臂和限制支架之间，例如，安装在附接到颚臂的手柄中的枢轴销上，以限制把手在向外的方向上的分离，使得弹簧 将持续地将颚臂偏压，使得本文所述的杠杆或其它装置的操作以与复合钳相似的方式起作用。 在第一实施例中，例如，手动滑动关节的操作使得钳口构件自动分离以实现大的最大钳口打开位置。 使用本发明的钳子的方法要求可手动调节的滑动接头定位在脱离模式中，以允许颚构件移动到预定的分离角度。 此时，滑动接头被接合，这允许使用钳子夹紧不同尺寸的工件。 通过使用一只手或两只手，颚构件可以移动到另一预定分离角。