Abstract: A boot including a sole and an upper, the boot extending length-wise from a heel to a front end, and height-wise from the sole to an upper end, the boot having an opening for foot insertion, and including a lateral portion, a medial portion, as well as a tightening device, the tightening device including a first linkage, a second linkage, as well as connections of the linkages to the upper. The first linkage runs from one portion to the other, in the area of the instep. The second linkage passes through an initial sliding connection located on one of the portions, then through a first intermediate sliding connection located on the other portion, then extends along the upper by going around the heel, between the sole and the upper end, so as to arrive at a fixed end connection located on that of the portions which carries the initial connection.

Abstract: A roller skate including a frame provided to receive a plurality of wheels; a sole adapted to support the user's shod foot; a heel stiffener; a foot retaining arrangement, capable of being in an open state, which enables insertion of the user's foot and, in a closed state, enables adjustment of the foot retaining arrangement around the user's foot, the foot retaining arrangement including: a forefoot anchoring, an instep anchoring, the forefoot and instep anchorings each having a pivot zone about which the foot retaining arrangement pivots when it is moved between the open and closed states; a forefoot fastening device, an instep fastening device adapted to keep the retaining arrangement in the closed state; and an adjustment mechanism enabling adjustment of the retaining arrangement to the morphology of the user's foot.

Abstract: A roller skate including a frame provided to receive a plurality of wheels; a sole adapted to support the user's shod foot; a heel stiffener; a foot retaining arrangement, capable of being in an open state, which enables insertion of the user's foot and, in a closed state, enables adjustment of the foot retaining arrangement around the user's foot, the foot retaining arrangement including: a forefoot anchoring, an instep anchoring, the forefoot and instep anchorings each having a pivot zone about which the foot retaining arrangement pivots when it is moved between the open and closed states; a forefoot fastening device, an instep fastening device adapted to keep the retaining arrangement in the closed state; and an adjustment mechanism enabling adjustment of the retaining arrangement to the morphology of the user's foot.

Abstract: A method of assembling a boot to the chassis of a sports article and a boot/chassis assembly so assembled. The boot includes a rigid outer sole and an upper that is at least partially flexible and the method includes mounting the flexible upper on an inner assembly sole by means of a first assembly arrangement, thus forming a first sub-assembly; obtaining a second flexible upper/outer sole sub-assembly by assembling the elements via a second assembly arrangement; obtaining the assembly of the second sub-assembly on the chassis by means of a third assembly arrangement located between the assembly sole and the chassis.

Abstract: A boot of the type that includes a low upper equipped with a rigid heel reinforcement and a rigid collar journalled on the reinforcement of the upper, in the area of the upper end thereof, the collar being equipped internally with a lining. The lining has an extension, extending downwardly within the upper up to the level of the base thereof. Advantageously, the extension is detachably connected to the upper and it is at least partially elastic.