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    • 5. 发明授权
    • Channel rasp
    • 通道锉
    • US5997221A
    • 1999-12-07
    • US160471
    • 1998-09-24
    • Kermit J. Sadler
    • Kermit J. Sadler
    • B23D71/06B23D67/00
    • B23D71/06Y10T407/18Y10T407/1805Y10T407/1825
    • A rasp is formed for removing material at a cut edge of a structure, such as drywall cut to size. Unlike prior drywall rasps, the rasp of the invention is formed with a rigid, channel-shaped grip defining a generally U-shaped, downwardly facing, concave inner channel surface. A rectangular section of expanded metal that forms a grid with a multiplicity of grid openings delineated from each other by a lattice of intervening metal strips is placed into the channel-shaped backing or grip. Lips at the lower extremities of the channel walls are bent upwardly and inwardly to clamp the sheet of expanded metal against the inner surface of the grip. The sheet of expanded metal is thereby permanently secured against the inner surface of the grip. The sheet of expanded metal is bent to conform to the interior surface of the grip. The channel-shaped structure of the rasp is then run along the cut surface of a structure to be finished so as to abrade away material therefrom. Because the rasping element is disposed against the concave, channel-shaped, inner surface of the grip, there is a minimal likelihood of accidental contact between the expanded metal abrading element and anything other than a narrow edge of sheet material purposely inserted into the channel-shaped structure of the rasp. The rasp thereby greatly reduces the likelihood of accidental injury to the user.
    • 形成用于在结构的切割边缘(例如切割成尺寸的干式墙壁)上去除材料的锉刀。 与以前的干墙撬管不同,本发明的锉刀形成有限定大体上U形的向下凹的内通道表面的刚性的通道形的把手。 形成具有通过中间金属条的格子彼此描绘的多个网格开口的网格的矩形截面的多孔金属被放置在通道形状的背衬或手柄中。 通道壁下端的嘴唇向上和向内弯曲,以将夹紧的金属片夹在手柄的内表面上。 因此,金属板被永久地固定在手柄的内表面上。 多孔金属板被弯曲以符合把手的内表面。 然后,锉刀的通道形结构沿着要完成的结构的切割表面延伸,以便从其上擦去材料。 由于撬动元件抵靠手柄的凹形,槽形的内表面设置,所以在金属研磨元件和除了有意插入通道内的片材的窄边缘以外的任何物质之间意外接触的可能性最小, 锉刀的形状结构。 因此,锉刀大大降低了对用户意外伤害的可能性。
    • 8. 发明授权
    • Hand rasp with groove blade and adjustable guide for scoring construction material
    • 手动锉刀带槽刀片和可调节导轨,用于打分建筑材料
    • US06905290B1
    • 2005-06-14
    • US10664131
    • 2003-09-22
    • Andrew Casciato, Jr.
    • Andrew Casciato, Jr.
    • B23D67/12B23D71/06
    • B23D71/06B23D67/12Y10T407/1825
    • An improved hand rasp comprises a planar plate with an anterior surface and an opposing posterior surface. An ergonomic handle is affixed to the anterior surface of the plate. A groove blade is removably affixed to the posterior surface of the plate by attachment means. The groove blade may have a variety of geometric configurations and varying in width and depth to accommodate the imagination of the user or designer. The groove blade includes an abrasive surface on the exterior surface of the groove blade. A guide is also removably affixed to the posterior surface of the plate by attachment means, positioned parallel to the groove blade. The guide is adjustable about apertures formed in the plate to position the guide closer to or farther away from the groove blade.
    • 改进的手挽包括具有前表面和相对后表面的平板。 人体工程学手柄固定在板的前表面。 沟槽刀片通过附接装置可拆卸地固定到板的后表面。 凹槽刀片可以具有各种几何构型并且在宽度和深度上变化以适应用户或设计者的想象。 凹槽刀片包括在凹槽刀片的外表面上的研磨表面。 引导件也可以通过平行于凹槽刀片定位的附接装置可拆卸地固定在板的后表面上。 引导件可围绕形成在板中的孔调整,以将引导件定位成靠近或远离凹槽刀片。