摘要:
Metal cellular panel (8) constituting a semifinished product formed by various corrugated plate half shells (1, 1′) wherein all the contact points between the half shells (1, 1′) are welded or riveted, and preferably the axial height (b) of the cells of the panel (panel thickness) does not exceed the maximum diameter of the cells. The panel production process ensures maximum flexibility, since it is adaptable to various cell shapes, various pitches between the cells, and various cell heights (h) (measured in the plane of the panel).
摘要:
Road safety barrier assembly has a barrier and an electric circuit that can be supplied with direct current. The circuit includes an outward electric cable and a return electric cable, and sensors along the barrier for detecting impact of a vehicle against respective portions of the barrier, each sensor causing upon impact detection a switching of electric current from the outward electric cable towards the return electric cable at the respective portion of the barrier. A device is arranged so as to measure a voltage value between the outward electric cable and the return electric cable upstream of the sensors. A control unit is predisposed to receive a signal indicating the voltage value measured by the voltage measuring device and is configured to calculate the distance between the voltage measuring device and the location of impact against the road safety barrier, by applying Ohm's Law.
摘要:
A road safety barrier with a plurality of metal cables, arranged along the side of a carriageway, for re-directing a vehicle in a case of impact, has a plurality of poles, fixed to the ground, which are distanced from one another and which are arranged one following another along the side of a carriageway. The safety barrier also has a plurality of metal cables supported by the poles, so that each metal cable is parallel to and at a predefined distance from the remaining metal cables in order to re-direct a vehicle in a case of impact. Each metal cable is fixed to each pole and is wound at least once about the lateral surface of each pole.
摘要:
A shock absorber for motor vehicles, comprising: a deforming body (2) comprising a first portion (3) and a second portion (4) which are fixed to one another such as to identify a tubular member (5) which has a first axis and comprises a first wall (6) and a second wall (7) adjacent to one another, which intersect to identify an edge (8), each portion (3, 4) comprising a half-shell (9) and two fixing tabs (10) arranged respectively at opposite ends of the half-shell (9), at least a portion (3, 4) comprising at least a bead (11, 12) which develops along a perpendicular development with respect to the first axis. The bead (11, 12) develops continuously at least along a part of the first wall (6) and at least along a part of the second wall (7) of the tubular member (5), following at least the edge (8) identified between the first wall (6) and the second wall (7), the bead (11, 12), when it follows the first wall (6), being orientated projecting with respect to the zone of the external surface of the first wall (6) which surrounds the bead (11, 12), the bead (11, 12), when following the second wall (7), being orientated retracted with respect to the zone of the external surface of the second wall (7) which surrounds the bead (11, 12), the bead (11, 12), at the edge (8), varying orientation thereof between projecting and retracted.
摘要:
Metal cellular panel (8) constituting a semifinished product formed by various corrugated plate half shells (1, 1′) wherein all the contact points between the half shells (1, 1′) are welded or riveted, and preferably the axial height (b) of the cells of the panel (panel thickness) does not exceed the maximum diameter of the cells. The panel production process ensures maximum flexibility, since it is adaptable to various cell shapes, various pitches between the cells, and various cell heights (h) (measured in the plane of the panel).