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    • 5. 发明申请
    • Tape measure with temporary braking mechanism
    • 带临时制动机构的卷尺
    • US20070056182A1
    • 2007-03-15
    • US11227753
    • 2005-09-15
    • Anthony Di BitontoKevin LozeauConor McNamara
    • Anthony Di BitontoKevin LozeauConor McNamara
    • G01B3/10
    • G01B3/1005G01B2003/1015G01B2003/1038G01B2003/1048
    • A tape measure is disclosed which includes a housing defining a chamber and having a peripheral wall with an aperture or opening, and an elongated coiled measuring tape blade within the housing chamber. The coiled tape blade typically includes an end with a hook thereon extending outwardly through the aperture and is capable of automatic retraction into the housing. A positive locking mechanism mounted on the peripheral wall for locking the tape blade at a selected position while the tape blade is in an extended position outside the housing, and a temporary braking mechanism mounted on the peripheral wall for controlling the rate of retraction of the extended tape blade into the housing are also disclosed. The temporary braking mechanism is preferably located opposite the positive locking mechanism with the tape blade extending therebetween, whereby, when external manual pressure is applied to the temporary brake mechanism, the tape blade is forced against the positive locking mechanism, reducing the retraction rate of the tape blade during automatic retraction into the housing.
    • 公开了一种卷尺,其包括限定腔室并且具有带有孔或开口的周壁的壳体,以及在壳体室内的细长卷绕的卷尺叶片。 螺旋带刀片通常包括具有钩的端部,其上通过孔向外延伸并且能够自动缩回到壳体中。 安装在周壁上的正锁定机构,用于将带状刀片锁定在选定位置,同时带刀片处于壳体外部的延伸位置,以及安装在周壁上的临时制动机构,用于控制延长的 磁带刀片进入外壳也被公开。 临时制动机构优选地与正锁定机构相对设置,带刀片在其间延伸,由此当外部手动压力施加到临时制动机构时,带刀片被迫抵靠正锁定机构,从而降低了 磁带刀片在自动缩回到外壳内。