Abstract: In the neutral position, the scooter has a longitudinal plane of symmetry and includes: a steering column which is generally vertical and pivotally mounted relative to a base about a steering axis to enable the steering of a front wheel; two spars which support the feet of the user, each spar comprising a front portion which is pivotally mounted on the base about an oblique pivot axis; two rear wheels, each one being rotatably mounted on a support about its axis, the support being pivotally mounted relative to the rear portion of the corresponding spar about a hinge axis which is inclined forwards, with respect to the vertical, by an angle ? comprised between 0° and 30°.

Abstract: In the neutral position, the scooter has a longitudinal plane of symmetry and includes: a steering column which is generally vertical and pivotally mounted relative to a base about a steering axis (A2) to enable the steering of a front wheel; two spars which support the feet of the user, each spar comprising a front portion which is pivotally mounted on the base about an oblique pivot axis (A3); two rear wheels, each one being rotatably mounted on a support about its axis (A5), said support being pivotally mounted relative to the rear portion of the corresponding spar about a hinge axis (A19) which is inclined forwards, with respect to the vertical, by an angle ? comprised between 0° and 30°.

Abstract: The vehicle includes: a chassis which includes a front cross-member and a rear cross-member; a nacelle receiving a person or a load, pivotally mounted relative to the central part of the cross-members about a substantially longitudinal hinge axis, the center of gravity of the nacelle being situated below said hinge axis; a front train and a rear train, each including two movement supports on the ground, each movement support being connected to the end part of the corresponding cross-member by a connecting system; the cross-members, situated in the upper part of the nacelle, being separate pieces linked together only by the nacelle, via the hinge axis, so as to be able to pivot about the hinge axis independently of one another.

Abstract: The vehicle includes: a chassis which includes a front cross-member and a rear cross-member; a nacelle receiving a person or a load, pivotally mounted relative to the central part of the cross-members about a substantially longitudinal hinge axis, the center of gravity of the nacelle being situated below said hinge axis; a front train and a rear train, each including two movement supports on the ground, each movement support being connected to the end part of the corresponding cross-member by a connecting system; the cross-members, situated in the upper part of the nacelle, being separate pieces linked together only by the nacelle, via the hinge axis, so as to be able to pivot about the hinge axis independently of one another.

Abstract: The invention concerns a protective barrier installed across a slope. The invention is characterized in that the net is maintained by several supports each having a first mast pointing downstream and whereof one end is fixed to an anchoring point in the ground and a second mast bearing on the ground, the two masts mounted side by side in a crossover geometrical relationship defining a predetermined angle which is determined by the type of use of the protective barrier, i.e. for falling rocks or to protect against avalanches; with the free ends of the masts having stays installed between the masts.

Abstract: The invention concerns a protective barrier comprising a net installed across a slope. The invention is characterized in that the net is maintained by several supports comprising each a first mast globally pointing downstream and whereof one end is fixed to an anchoring point in the ground and a second upright mast resting on the ground, the two masts intersecting side by side in a specifically selected geometrical configuration, in particular with guy cables installed between the masts.

Abstract: The protective barrier comprises a sheet of netting substantially following the ground transverse to the slope and held spread out upright by posts. The posts are held by upstream and downstream stays on a guide in the direction of the slope, the guide being formed by a loop of cable stretched between two pulleys anchored in the ground and having a bearing strand to which the stays and the post are attached. A mooring cable upstream of the netting retains the attachment place of the upstream stay on the bearing strand. The cable is equipped with shock-absorbing means adapted to allow a length of reserve cable to run when subjected to strong tension. The impact of blocks of stones causes the posts to fall back on either side of the place of impact, the motion being slowed down by the shock-absorbing means. The sheet of netting remains stretched and the posts do not bend.