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    Garden tools and ergonomic handles therefor
    4.
    发明授权
    Garden tools and ergonomic handles therefor 失效

    公开(公告)号：US06662406B2

    公开(公告)日：2003-12-16

    申请号：US09916947

    申请日：2001-07-27

    申请人： Richard C. Shonfeld ,  James J. Best ,  Daniel J. Formosa ,  Conor P. McNamara ,  Marco C. Perry

    发明人： Richard C. Shonfeld ,  James J. Best ,  Daniel J. Formosa ,  Conor P. McNamara ,  Marco C. Perry

    IPC分类号： B25G101

    CPC分类号： A01B1/00 ,  A01B1/20 ,  B25G1/01 ,  B25G1/102 ,  Y10S16/12 ,  Y10S16/18 ,  Y10S16/19 ,  Y10T16/476 ,  Y10T16/48 ,  Y10T16/498

    摘要： A garden tool includes a work-engaging head joined by a shank to a plastic handle. The handle has a relatively rigid plastic core body. A cavity is formed in the handle to divide it into forward and rearward portions. The cavity is filled with a flexible and resilient material to accommodate flexing of the rearward portion relative to the forward portion. A flexible and resilient gripping sheath covers the outer surface of the core body except for the cavity. In one embodiment the cavity is in the core body and includes a notch. For digging tools, such as trowels, the notch is formed on the lower side of the core body adjacent to the distal end, while for pulling or raking tools, such as plows, the notch is formed on the upper side of the core body adjacent to the working end. A recess may be formed in the core body opposite the notch for cooperation with the notch to define a narrow hinge. In another embodiment the cavity includes an aperture extending laterally through a lobe extension of the grip sheath, and in yet in another embodiment the cavity includes notches formed on upper and lower sides of the core body and defined by a hinge interconnecting the forward and rearward portions of the handle.

    Shears
    5.
    发明授权
    Shears 失效
    剪

    公开(公告)号：US5463814A

    公开(公告)日：1995-11-07

    申请号：US308578

    申请日：1994-09-19

    申请人： Davin Stowell ,  Daniel J. Formosa

    发明人： Davin Stowell ,  Daniel J. Formosa

    IPC分类号： B26B13/12

    CPC分类号： B26B13/12

    摘要： Shears have two crossed pivotally interconnected levers, each having a blade end and a handle end, and normally biased open. Upper and lower handles are, respectively, connected to the handle ends of the levers, the upper handle having a low-friction outer surface and including front, rear and medial portions, while the lower handle has a high-friction outer surface with a downwardly convex lower portion. The front portion of the upper handle projects upwardly to stop forward movement of the hand. The medial portion is of reduced cross section to facilitate hooking of the user's thumb thereover. The rear portion has a laterally upwardly and inwardly sloping upper surface. An elastomeric loop depends from the lower handle rearwardly of the front portion of the upper handle and receives therethrough only the middle finger of the user's hand.

    摘要翻译： 剪刀具有两个横向枢转互连的杠杆，每个杠杆具有刀片端部和手柄端部，并且通常被偏置打开。 上手柄和下手柄分别连接到手柄的手柄端部，上手柄具有低摩擦外表面并且包括前，后和中间部分，而下手柄具有高摩擦外表面，具有向下 凸下部。 上手柄的前部向上突出以阻止手的向前移动。 中间部分具有减小的横截面以便于使用者的拇指在其上钩住。 后部具有横向向上且向内倾斜的上表面。 弹性环从上手柄前部后方的下把手取下，仅通过使用者手的中指接收。