PIVOT Russian patent published in 1995 - IPC

FIELD: mechanical engineering. SUBSTANCE: pivot has jaw-lug interposed between webs of the jaw, pin received in coincident openings in the jaw and the lug, and insert mounted in the lug on the pusher. The lug is made up as housing with the socket made up as [ - shaped cramp. The pivot can be provided with a cross-piece positioned on the housing between branches of [ shaped cramp. The insert consists of two parts. One of the parts is interposed between the cross-piece and pusher. The other part is interposed between the shelf of the cramp and pusher. The pivot can be provided with plate and strengthening member. The plate is interposed between the cross-piece and insert. The strengthening member is mounted in the spaces between the plate and cross-piece. The pivot can be provided with pins. Axially alined opening can be made in the inserts and cross-piece or in the plate and shelf of [ shaped cramp. The pivot can be provided with bushings. The bushings are received in the openings made in the webs and pins and secured to the pins. The pin can be hollow. EFFECT: enhanced reliability. 6 cl, 2 dwg