| 摘要 |
A barrier type bollard includes: at least two blocks 10, 20, the block 10 being defined between two faces 11, 12 defining a wedge having an edge 13 and a dihedral angle α of a value of less than ninety degrees, the face 12 being arranged as a sliding face 12′, the second block 20 having a sliding face 22′ substantially complementary to the sliding face 12′, the two blocks 10, 20 being mounted in such a manner that their sliding faces 12′ and 22′ rest one on the other; an oblong element 30 of longitudinal axis 31 projecting from the face 11; and damper elements 40 for damping the sliding movement of the two blocks one on the other, the damper elements 40 being interposed between the two blocks. The bollard is applicable to impact-absorbing barriers against all kinds of body, and particularly but not exclusively, against vehicles. |
| 主权项 |
1. A barrier type bollard, comprising:
a first block (10), the first block (10) being defined substantially between first and second faces (11, 12) defining a wedge with a dihedral angle having a value of less than ninety degrees, the first face (11) being defined substantially in a first plane (15), the second face (12) being arranged as a first sliding face (12′) occupying a cylindrical surface (14); a second block (20), the second block (20) having a face (22) arranged as a second sliding face (22′) occupying a cylindrical surface (24) that is substantially complementary to the cylindrical surface (14) of the first block (10), the first and second blocks (10, 20) being mounted in sliding cooperation one on the other in such a manner that the first and second sliding faces (12′, 22′) rest one on the other; an oblong element (30) defined along a first longitudinal axis (31); means (35) for securing said oblong element (30) to project from the first face (11) of the first block (10) in such a manner that its longitudinal axis (31) forms a non-zero angle relative to the first plane, which angle is optionally ninety degrees; damper means (40) for damping the sliding movement of the two blocks one on the other, said damper means being interposed between said two blocks, said damper means (40) being irreversible and constituted by at least one cartridge (42) having a deformable wall (44), and further comprising i) a groove extending along a second longitudinal axis (114) in one of the two blocks (10, 20) in which the groove is made, and opening out into one of the first and second sliding faces (12′, 22′) corresponding to the one of the two blocks, said groove being defined in such a manner that the cartridge (42) is suitable for being engaged therein, and ii) means for coupling a wall (42-2; 42-1) of said cartridge (42) perpendicular to said second longitudinal axis (114) when said cartridge is engaged in the groove with a one of the two blocks in which said groove is not made, said cartridge (42) being in the form of a box having an aluminum wall, and presenting substantially one of the following shapes: a rectangular parallelepiped, a circular cylinder; at least one channel (110) made in the second sliding face (22′) in a direction parallel to the direction of the second longitudinal axis (114); at least one hook (100) secured to the first block (10) projecting from the second face (12) and situated at a distance spaced apart from the edge (13) in such a manner as to be suitable for plunging into said channel (110) and for running along said channel (110) over a nonzero distance when the first and second blocks (10, 20) are mounted in sliding cooperation one on the other; and an abutment (120) made in the channel close to the end of said channel (110) situated. close to said edge (13), said abutment (120) being arranged in cooperation with said channel (110) so as to catch said hook (100) when said first block has slid over the second block under the action of an impact (Fi) applied to the oblong element (30) in order to stop the sliding of the first block (10) relative to the second block (20). |
