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Snowboard binding comprising a baseplate (1) on which is mounted a bow (7) that is adjustable in terms of position by means of two pairs of nuts and screws and a highback (8) mounted on the bow so chat it is orientable. Each of the screws (25) used to mount the highback (8) on the bow (7) and one of

Snowboard binding comprising a baseplate (1) on which is mounted a bow (7) that is adjustable in terms of position by means of two pairs of nuts and screws and a highback (8) mounted on the bow so chat it is orientable. Each of the screws (25) used to mount the highback (8) on the bow (7) and one of the screws (22, 24) of the pair of screws used to fix the bow to the baseplate arc coaxial and share a common nut (17, 19). This construction has the effect of simplifying the nut-and-screw fittings and of increasing the range of orientation of the highback.

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1. A snowboard binding comprising a baseplate intended to be fixed to a snowboard and having two parallel side walls, a bow having two parallel arms by which the bow is adjustably mounted via two pairs of nuts and screws for translation on and between the walls of the baseplate, and a curved highbac

1. A snowboard binding comprising a baseplate intended to be fixed to a snowboard and having two parallel side walls, a bow having two parallel arms by which the bow is adjustably mounted via two pairs of nuts and screws for translation on and between the walls of the baseplate, and a curved highback, mounted on the bow so that it is orientable about an axis approximately perpendicular to the baseplate and so that it can be pivotably folded down onto the baseplate, wherein the screws of the highback on each side of the sidewall which mount the highback on the bow, share a common nut with a screw that fixes the bow to the baseplate, the bow fixing screw being located on an opposite side of the sidewall and further being coaxial with the corresponding highback mounting screw.2. The binding as claimed in claim 1, wherein the common nuts are secured to the bow.3. The binding as claimed in either of claims 1 or 2, wherein the screws of the highback pass through the highback via oblong slots having long sides running in a direction more or less parallel to a plane perpendicular to the axis of orientation of the highback, the long sides of which being notched externally and wherein the screws bear on the highback via notched inserts.4. The binding as claimed in one of claims 1 to 2, the side walls of which each have an oblique slot, wherein the common nuts are tubular, of polygonal external cross section, and engaged in the slot of the baseplate in such a way as to be prevented from rotating in these slots.5. The binding as claimed in claim 4, wherein the width of the oblong slots in the highback is significantly greater than the width of the slots in the baseplate, and wherein the notched inserts have a screw hole which is offset in a direction transversal to the slots so that each of the sides of the highback can be fixed at two different heights by repositioning the notched insert in the slot through 180° about the axis of its screw hale.6. The binding as claimed in claim 4, wherein the bearing face of the heads of the screws for mounting the highback on the bow is notched.7. The binding as claimed in claim 6, wherein the exterior surface of the notched inserts, on which surface the highback mounting screws bear, is also notched.