Attachment for release ski bindings for cross-country skiing

In an attachment for use in cross-country skiing and adapted for operative connection to a releasable toe ski binding member having first releasable locking means thereon for normally holding a ski boot for use in downhill skiing, said toe ski binding member being fixedly secured to a ski, said attachment comprising a sole plate and first means for holding said sole plate on said ski, said sole plate including second means for securing said ski boot thereto, said first means including a connecting piece permanently and pivotally connected through a first axle to said sole plate, said first axle being located substantially directly below the toe of said ski boot and extending transversely with respect to the longitudinal axis of said ski, a spring, said spring being adapted to yield to movement of said sole plate upwardly with respect to said connecting piece and about said first axle and second releasable locking means on said connecting piece and on said toe ski binding member separate from said first releasable locking means for permitting said sole plate and the connected connecting piece to be selectively connected to said toe ski binding member, the improvement comprising wherein said sole plate is comprised of first and second sole plate parts connected to each other through a second axle extending parallel to said first axle, wherein said connecting piece has a tongue member thereon forming a portion of said second releasable locking means, another portion being a part of said releasable toe ski binding member, wherein said first sole plate part has a recess therein, said tongue member being pivotal with said connecting piece about said first axle between a first position wherein said tongue member projects forwardly from said sole plate and a second position wherein said tongue member overlays said first sole plate part and is received in said recess, and including releasable holding means for releasably holding said tongue member in said recess.