摘要:
A toolholder unit for sheet metal bending brakes, comprising a bar (1) to be associated with a fixed or movable part of the brake, and 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) to maintain said jaw spaced from said recess and from the shank contained therein, and locking means to clamp said jaw against said shank, said locking means comprising: at least one slider axially slidable within a seat facing that side of the bar (1) facing the jaw; at least one appendix (175) projecting from said slider beyond that side of the bar facing the jaw; at least one cavity (21) provided in the bar (1), or in a part (2) rigid with it, to receive said appendix (175); and means (18) of variable profile to cause said slider (17) to undergo controlled translations relative to said bar (1).
摘要:
Fork-shaped links on a conveyor chain allow the chain to follow sharp curves in a right angle to the plane of the links as well as allowing oscillation of adjacent links in the same plane as the links. Each link has a crosspiece and a pair of arms. A seat of articulation and oscillation having a central narrowing is positioned on the crosspiece. The crosspiece is inserted between the arms of an adjacent link, and a pin having a longitudinal flattening is inserted with the flattened portion facing the central narrowing, through holes in the arm, and through the seat.
摘要:
A roller unit suitable for application to the side walls of chain link conveyors, including along their curved portions, and containing modules, each of which includes a flat plate, from the opposing sides of which there extends a first pair of brackets between which there are supported the fixing pins of the constituent idle rollers of the roller unit, and a second pair of brackets for receiving the conveyor side wall and the elements for fixing the module thereto, the second pair of brackets being provided with recesses which extend to also involve the plate.
摘要:
A toolholder unit for sheet metal bending brakes, comprising a bar to be associated with a fixed or movable part of the brake, and provided with at least one recess forming with a jaw associated therewith a groove to receive the shank of the tool, there being provided elastic means to maintain said jaw spaced from said recess and from the shank contained therein, and locking means to clamp said jaw against said shank, said locking means comprising: at least one slider axially slidable within a seat facing that side of the bar facing the jaw; at least one appendix projecting from said slider beyond that side of the bar facing the jaw; at least one cavity provided in the bar, or in a part rigid with it, to receive said appendix; and means of variable profile to cause said slider to undergo controlled translations relative to said bar.
摘要:
The motor vehicle (1) provided with an improved car door comprises:
one basic chassis (2); a plurality of wheels (3) movable along one anteroposterior direction (A); one compartment (4a, 4b); one car door (5) associated with the basic chassis (2) so as to be rotatable around one axis of rotation (R) horizontal and orthogonal to the anteroposterior direction (A);
wherein:
the car door (5) comprises one opening door (6) provided with a first side (7) rectilinear in shape and with a second side (8), associated with the first side (7), shaped in a semi-circumference; the motor vehicle (1) comprises one guiding and movement assembly (10, 11) adapted to move the car door (5) between one closing configuration, wherein the first side (7) is arranged horizontal, and at least one opening configuration, wherein the first side (7) is arranged vertical.
摘要:
A butterfly valve, preferably for a blow off circuit of a gas turbine plant. In one aspect, the invention can be a butterfly valve for a blow off circuit of a gas turbine plant comprising: a supporting ring having an inner perimeter edge defining a fluid flow section and an annular seat arranged along the inner perimeter edge; a disc, which is pivoted to the supporting ring and is mobile between a valve closing position, wherein the disc obstructs the fluid flow section, and a valve opening position, wherein the disc does not obstruct the fluid passage section; a sealing ring partially housed in the annular seat and adapted to abut against a peripheral edge of the disc when the disc is in the valve closing position; the sealing ring comprising an inner annular portion, which is contained in the annular seat, and a projecting annular portion, which projects radially from the annular seat and is hollow.