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    • 6. 发明授权
    • Torque wrench with sleeve for locking rotatable handle
    • 带套筒的扭力扳手用于锁定可旋转手柄
    • US06948410B1
    • 2005-09-27
    • US10794103
    • 2004-03-04
    • John Andrew Larson
    • John Andrew Larson
    • B25B23/14B25B23/142F16B7/04F16B21/00
    • F16B7/042B25B23/1427Y10S403/06Y10T403/592
    • A torque wrench is provided having body and a handle that is rotatably mounted to the body for adjusting the torque setting, and an axially movable sleeve operable to selectively lock the handle. The sleeve includes a rigid member and an elastomeric member, such as an O-ring, and the sleeve is configured to act against a locking ball held in a bore of the handle. The sleeve is selectively movable between two positions: (a) a locked position wherein the rigid member firmly retains the locking ball seated in one of several detents in the body, thereby preventing rotation of the handle; and (b) an unlocked position wherein the elastomeric member biases the locking ball inwardly, deflecting when the locking ball unseats from the detent to permit handle rotation. When the sleeve is in the unlocked position, the locking ball can incrementally “click” over the detents during handle rotation.
    • 提供一种扭矩扳手,其具有主体和可旋转地安装到主体上用于调节扭矩设定的手柄,以及可操作以选择性地锁定手柄的可轴向移动的套筒。 套筒包括刚性构件和诸如O形环的弹性体构件,并且套筒构造成抵抗保持在手柄的孔中的锁定球。 套筒可以选择性地在两个位置之间移动:(a)锁定位置,其中刚性构件牢固地保持锁定球,其位于身体中的多个棘爪中的一个棘爪中,从而防止手柄旋转; 和(b)解锁位置,其中所述弹性体构件向内偏压所述锁定球,当所述锁定球从所述棘爪脱离以允许手柄旋转时偏转。 当套筒处于未锁定位置时,锁定球可以在手柄旋转期间递增地“点击”在锁销上。