FIELD: process engineering.
SUBSTANCE: invention relates to clamps. Locking mechanism 24 comprises case 28 secured to box 16, handle 102 arranged to rotate on case outer side, and transfer section 104 to transmit driving force applied by handle 102. One end of guide rod 138 that makes part of transfer section 104 is fitted in bypass groove 52a of piston rod 52 arranged inside aforesaid box. Besides, guide rod 138 is driven by rotating handle 102 vertically (up and down) so that support 22 shifts revolving when driven via crank-lever mechanism 70 by axial displacement of piston rod 52.
EFFECT: possibility to select between clamp and unclamped position.
8 cl, 12 dwg
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