| 摘要 |
PURPOSE:To prevent the damage of each part of the device due to a shock, by providing a means, which presses back a slider struck against a stopper, and a brake means which damps the slider. CONSTITUTION:When high pressure pas is supplied to a large-diameter cylinder 24 of a driving means 14 to operate a piston 26 in a small-diameter cylinder 25, the tip of a piston rod 40 presses a flat face 23 of a slider 13 to move the slider 13. This slider 13 is smashed against a stopper 29, and a block 17 to be shot is shot from the slider and is smashed against a material 30 to be tested. At this time, the slider 13 compresses a spring 28, and the slider 13 is pressed back by the stored repulsive force. A pendulum 36 is slid by the retreat of the slider 13, and a pressing sleeve 33 presses a taper face 32 of a brake shoe 31 through an operating rod 34 to damp the slider 13. Thus, unnecessary propagation of the impact force of the strike test to the whole of the device is prevented. |
