Patent ID: 7024915

Claim:
A toolholder unit for sheet metal bending brakes, comprising a bar ( 1 ), having a core ( 2 ), to be associated with a fixed or movable part of the brake which is provided with at least one recess ( 9 ) forming with a jaw ( 12 ) associated therewith a groove ( 11 ) to receive the shank ( 7 ) of the tool ( 5 ), there being provided elastic means ( 20 ) for maintaining said jaw spaced from said recess and from the shank contained therein, and locking means for clamping said jaw against said shank, wherein said locking means comprise at least one slider ( 17 ) axially slidable within a seat facing that side of the bar ( 1 ) facing the jaw, at least a ball ( 175 ) projecting from said slider beyond that side of the bar facing the jaw; at least one cavity ( 21 ) provided in the jaw ( 12 ), to receive said ball ( 175 ), and means ( 18 ) for causing said slider ( 17 ) to undergo controlled translations relative to said bar ( 1 ).