Lockable hammer-drill chuck
    1.
    发明授权
    Lockable hammer-drill chuck 失效
    可锁定锤钻夹头

    公开(公告)号:US07389993B2

    公开(公告)日:2008-06-24

    申请号:US11227719

    申请日:2005-09-15

    IPC分类号: B23B31/12

    摘要: A drill chuck has an externally toothed body, a plurality of jaws, and a tightening ring rotatable on the body in tightening and loosening directions. Screwthreads between the tightening ring and the jaws move the jaws radially. A pawl engageable with the teeth is angularly fixed on the tightening ring and can shift between a retaining position engaging the teeth and a freeing position disengaged from the teeth. An adjustment sleeve is limitedly angularly displaceable on the body relative to the tightening ring between a locked end position and an unlocked end position. A cam on the adjustment sleeve can displace the pawl into the retaining position when the adjustment sleeve is in the locked end position and into the freeing position when the adjustment sleeve is in the unlocked end position. A locking part can engage the pawl in the retaining position thereof to lock the chuck.

    摘要翻译: 钻卡盘具有外齿体,多个夹爪以及在紧固和松开方向上可在主体上旋转的紧固环。 紧固环和夹爪之间的螺纹线径向移动夹爪。 与齿接合的棘爪成角度地固定在紧固环上,并且能够在与齿啮合的保持位置与从齿脱离的释放位置之间移动。 在锁定的结束位置和解锁的结束位置之间,调节套筒相对于紧固环在主体上有限地可角度地移位。 当调节套筒处于解锁端位置时,调节套筒上的凸轮可以在调节套筒处于锁定的结束位置并且进入到释放位置时将棘爪移动到保持位置。 锁定部分可以在其保持位置处接合棘爪以锁定卡盘。