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    • 8. 发明授权
    • Rule assembly with protective film
    • 规则装配保护膜
    • US06249986B1
    • 2001-06-26
    • US09366785
    • 1999-08-04
    • John C. Murray
    • John C. Murray
    • G01B310
    • G01B3/10G01B3/1082G01B2003/1015G01B2003/1038
    • A retractable rule assembly includes a housing assembly and a reel rotatably mounted in the housing assembly. An elongated blade formed of a ribbon of metal having one end connected to the reel is constructed and arranged with respect to the housing assembly to extend from a position tangential to the reel outwardly through a spaced opening in the housing assembly. A coil spring formed of a ribbon of metal has a construction and arrangement between the housing assembly and the reel to rotate the reel in the housing assembly in a direction to wind up the elongated blade when extending outwardly of the housing assembly opening in a normal concavo-convex cross-sectional configuration onto the reel in an abutting volute coil formation in a flattened cross-sectional configuration. A blade holding assembly is constructed and arranged to be manually actuated to hold the blade in any position of extension outwardly of the housing assembly opening and to release the blade from any position in which it is held. A relatively short free end portion of the blade has a clear film of plastic material adhered to a concave side thereof. The clear film of plastic material protects the covered portion of the blade from cracking or tearing and protects the numbering and graduation lines on the end of the blade from wear.
    • 可伸缩规则组件包括壳体组件和可旋转地安装在壳体组件中的卷轴。 由金属带形成的细长叶片,其一端连接到卷轴,其构造和布置成相对于壳体组件从与卷筒相切的位置向外延伸通过壳体组件中的间隔开的开口。 由金属带形成的螺旋弹簧具有在壳体组件和卷轴之间的结构和布置,以使壳体组件中的卷轴旋转,以沿着正常凹凸向壳体组件开口向外延伸的方向卷绕细长叶片 横截面构造以扁平的横截面构造形成在邻接的蜗壳线圈中。 叶片保持组件被构造和布置成手动地致动以将叶片保持在壳体组件开口的外部延伸的任何位置,并将叶片从其保持的任何位置释放。 叶片的相对短的自由端部分具有粘附到其凹侧的塑料材料的透明膜。 塑料材料的透明膜保护刀片的被覆盖部分不会破裂或撕裂,并保护刀片末端的编号和刻度线免受磨损。
    • 9. 发明授权
    • Vibration damped hammer
    • 振动减震锤
    • US06202511B1
    • 2001-03-20
    • US09371586
    • 1999-08-10
    • John C. MurrayDavid B. Scott
    • John C. MurrayDavid B. Scott
    • B25D100
    • B25G1/01
    • A hammer includes a rigid elongated support structure, a head carried at one end of the support structure, and a manually engageable gripping portion. An end of the elongated support structure includes a pair of vibration-receiving portions terminating in spaced apart relation with respect to each other and spaced from each other in a direction parallel to a swing plane of the hammer. The manually engageable gripping portion is formed from a resiliently deformable material molded around a portion of the support structure including the vibration-receiving portions so as to fill the space between the vibration-receiving portions. Vibration forces acting in a direction parallel to the swing plane of the hammer are generated by striking a striking surface of the head against an object. A portion of the vibration energy is transmitted through the support structure to the vibration-receiving portions, where the vibration energy is dampened and thereby dissipated by the resiliently deformable material surrounding the vibration-receiving portions. Accordingly, the level of vibration transmitted to the hand of the user is reduced.
    • 锤包括刚性细长支撑结构,在支撑结构的一端承载的头部和可手动接合的夹持部分。 细长支撑结构的一端包括一对振动接收部分,它们以相互间隔开的关系终止并且在平行于锤的摆动平面的方向上彼此间隔开。 可手动接合的抓握部分由围绕包括振动接收部分的支撑结构的一部分模制的可弹性变形材料形成,以便填充振动接收部分之间的空间。 通过将头部的击打表面撞击物体来产生沿与锤的摆动平面平行的方向作用的振动力。 振动能量的一部分通过支撑结构传递到振动接收部分,其中振动能量被衰减,从而由围绕振动接收部分的弹性变形材料消散。 因此,减少了传递给用户的手的振动水平。