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    • 2. 发明申请
    • Blade device
    • 刀片设备
    • US20050126052A1
    • 2005-06-16
    • US10513653
    • 2003-04-18
    • Meiichi OnoShigeru Obinata
    • Meiichi OnoShigeru Obinata
    • E02F3/815E01H5/06
    • E02F3/8155
    • The back face of a main blade body includes mounting parts, with a box structure having a mounting hole opened in the width direction and a cross section intersecting the width direction is non-circular. At the back face of each width expansion blade body is a fitting part, removably inserted into the mounting hole. A latching member latches the fitting part fitted in the mounting hole. For width expansion, the fitting part is fitted from the outer end side of the mounting hole to position the width expansion blade body at an end of the main blade body. For the housing, the fitting part is fitted from the inside of the mounting hole to house and position the width expansion blade body at the back face of the main blade body. In the width-expanded state, loads are received by the corresponding mounting part to lighten the burden placed on the latching member.
    • 主叶片本体的背面包括安装部分,其具有在宽度方向上开放的安装孔和与宽度方向相交的横截面为非圆形的盒结构。 在每个宽度扩展叶片本体的背面是可拆卸地插入到安装孔中的装配部件。 闩锁构件锁定装配在安装孔中的配件部分。 对于宽度膨胀,装配部分从安装孔的外端侧安装,以将宽度扩展叶片本体定位在主叶片本体的一端。 对于壳体,装配部分从安装孔的内部装配,以将宽度扩展叶片本体容纳并定位在主叶片本体的背面。 在宽度扩展状态下,相应的安装部分接收负载,以减轻锁定部件上的负担。