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    • 3. 发明授权
    • Clamping apparatus
    • 夹紧装置
    • US3955810A
    • 1976-05-11
    • US487965
    • 1974-07-12
    • Jimmy K. Travis
    • Jimmy K. Travis
    • B25B5/12F16G3/00B25B5/04
    • F16G3/006B25B5/12Y10T24/3947
    • Apparatus for clamping a workpiece, such as the end portion of a conveyor belt, includes a link member having an upper end portion and a lower end portion with a receiving member secured intermediate the end portions for horizontally supporting the workpiece. A bent lever having a first end portion angularly disposed relative to a second end portion is pivotally connected at a fulcrum point to the link member upper end portion. An arcuate blade member having a clamping surface is secured to and projects outwardly from the lever arm first end portion above the receiving member. An actuator is pivotally connected at one end portion to the lever second end portion and at the opposite end to the lower end portion of the link member. The application of a selected force to the actuator in a direction away from the link member pivots the lever about the fulcrum point on the link member downwardly and urges the blade clamping surface into frictional engagement with the workpiece. The actuating force applied to the actuator is multiplied by the lever to exert upon the workpiece a resultant clamping force of substantially greater magnitude to rigidly secure the workpiece between the blade member and receiving member.
    • 用于夹紧工件(诸如传送带的端部)的装置包括具有上端部分和下端部分的连接构件,其中接收构件固定在端部的中间部分处以水平地支撑工件。 具有相对于第二端部成角度地设置的第一端部的弯曲杆在枢轴点处枢转地连接到连杆构件上端部。 具有夹紧表面的弓形刀片构件固定到接收构件上方的杠杆臂第一端部并向外突出。 致动器在一端部枢转地连接到杠杆第二端部,并且在相对端连接到连杆构件的下端部。 在远离连杆构件的方向上向致动器施加所选择的力使杆绕着连杆构件上的支点枢转,并且推动叶片夹紧表面与工件摩擦接合。 施加到致动器的致动力乘以杆,以对工件施加大致更大幅度的合成夹紧力,以将工件刚性地固定在刀片构件和接收构件之间。