Interface device between a ski and bindings

Interface device between a ski (1) and front and rear bindings (3, 4) designed to hold the ends of a boot in place, said bindings being positioned in a central runner portion of said ski and each comprising a base (8, 12) connecting said binding to said device, said device comprising a longilinear plate (15) having front and rear ends respectively connected to said ski forwardly and rearwardly of said bindings (3, 4), said plate (15) having at said rear end (16), a first assembly area for attachment of said rear binding (4), said front end (30) of said plate (15) being attached longitudinally to a support by an elastically-deformable linkage, wherein

• (a) said rear end (16) of said plate is connected to said ski by a linkage (17, 18, 19) permitting said rear end to slide freely longitudinally in relation to said ski,and a first stop assembly (18, 17a) limits relative motion of said rear end in a direction of a corresponding end of said ski, within a limit of clearance determined for predetermined flexure of said ski in the 18 direction of a depression of said central portion in relation to at least one of said front and rear ends;
• (b) a second stop assembly (23a, 25a, 24a, 26a) obstructs the relative motion of said front end (30) of said plate in relation to said ski, in a direction of relative distancing of said front end of said plate from a corresponding end of said ski;
• (c) said front end (30) of said plate (15) is connected to said ski by a layer (33) of an adhesive material which is elastically-deformable in the longitudinal direction defined by said ski;
• and
• (d) said plate (15) incorporates a block (21) which is attached to said ski and is equipped with a second assembly area (23, 24) which receives said attachment of said base (8) of said front binding (3), said block (21) being positioned on a side of said front end of said plate and constituting said second stop (23a, 25a, 24a, 26a).