Collapsible ski

Abstract

A collapsible ski comprising two structural portions, that is the front and the rear of the ski, coupled together by provisions of a tenon formed in the rear portion of the ski along the entire width from the edge to the edge corresponding to a mortise formed on an entire width of the front portion of the ski wherein the mortise comprises a pair of arms. The ski comprises a ski binding consisting of a front part and a rear part, wherein the ski binding comprises a plate coupled to the rear portion of the ski via screws and a transversal bar sandwiched between the plate and the ski. The coupling of the ski is positioned in a location enabling attachments of the front of the ski binding onto the rear portion of the ski. The ski further comprises a latch located in a long axis of the ski.

Claims

1. A ski collapsible for transportation, comprising in its assembled, i.e functional state: a front portion with a tip slightly bowed upwardly against the ground; a rear portion either typically flat or slightly away from a tail upwardly bent against the ground; a central area which is adapted for attachment of a ski binding consisting of a front part and a rear part and is suitable for mounting any ski boot on a top surface, wherein the front and rear portion of the ski are coupled together at the central area; wherein the front portion and the rear portion of the ski are coupled together by a coupling comprising provisions of: a tenon formed in the rear portion of the ski along the entire width from the edge to the edge corresponding to a mortise formed on an entire width of the front portion of the ski, wherein the mortise comprises a pair of arms, wherein: the coupling of the ski is positioned in a location enabling attachment of the front of the ski binding onto the rear portion of the ski; the ski binding comprises: a plate (2) coupled to the rear portion of the ski via screws (2); and a transversal bar (5) sandwiched between the plate (2) and the ski and disposed towards the front of the ski binding, wherein the transversal bar (5) is configured to couple the pair of arms of the mortise of the coupling resembling a shape of a letter omega; and a latch (1) located in a long axis of the ski and shifted towards the front portion of the ski securing both portions of the ski against moving apart and thus separation.

2. A ski collapsible for transportation, comprising in its assembled, i.e functional state: a front portion with a tip slightly bowed upwardly against the ground; a rear portion either typically flat or slightly away from a tail upwardly bent against the ground; a central area which is adapted for attachment of a ski binding consisting of a front part and a rear part and is suitable for mounting any ski boot on a top surface, wherein the front and rear portion of the ski are coupled together at the central area; wherein the front portion and the rear portion of the ski are coupled together by a coupling comprising provisions of: a tenon formed in the rear portion of the ski along the entire width from the edge to the edge of the rear portion of the ski corresponding to a mortise formed on an entire width of the front portion of the ski, wherein the mortise comprises a pair of arms, wherein: the coupling of the ski is positioned in a location enabling attachment of the front of the ski binding onto the rear portion of the ski; the ski binding comprises: a plate (2) coupled to the pair of arms of the mortise of the coupling resembling a shape of a letter omega via screws (3); and a pair of latches (1) shifted towards the front portion of the ski and located symmetrically against a long symmetry axis of the ski near the metal edges thereof, wherein the pair of latches is configured to couple the front and the rear portion of the ski.

3. The ski according to claim 1, characterized in that the front portion and the rear portion of the ski are coupled together by a flexible joint in a form of a cable, belt, or chain.

4. The ski according to claim 2, characterized in that the front portion and the rear portion of the ski are coupled together by a flexible joint in a form of a cable, belt, or chain.

Description

(1) The subject of the invention is shown in the embodiments in the drawing, where

(2) FIG. 1 shows a schematic top view of the collapsible ski ready to use,

(3) FIG. 2 and FIG. 3 present the central part of the ski in the top view (FIG. 2) and from the sliding surface (FIG. 3),

(4) FIG. 4 shows arrangement of the openings for the fixing screws along the runner of the ski with the plate under the front of the binding, and

(5) FIG. 5 presents a transversal section of the ski in the place of the tenon and mortise joint, and then

(6) FIG. 6 shows a schematic top view of the collapsible ski ready to use in the embodiment with the omega arms towards the front of the ski, whereas

(7) FIG. 7 and FIG. 8 presents respectively the central portion of the ski in the top view (FIG. 7) and from the sliding surface (FIG. 8), and in

(8) FIG. 9 it is shown a transversal section of the ski in the point of the tenon and mortise joint. Then,

(9) FIG. 10 shows a schematic top view of the collapsible ski with the coupling in a form of a cascade of omegas, ready to use,

(10) FIG. 11 and FIG. 12 respectively show the central part of the ski in the top view (FIG. 11) and from the sliding surface (FIG. 12),

(11) FIG. 13 shows arrangement of the openings for the fixing screws along the runner of the ski with the plate under the front of the binding, and

(12) FIG. 14 presents a transversal section of the ski in the point of the tenon and mortise joint. A real view of the assembled ski, and prepared for assembly with the coupling in a shape of two omega letters (cascade), that is with the coupling half open, are presented respectively in

(13) FIG. 15 and FIG. 16.

(14) In FIG. 17 a view of the coupling is presented in enlargement.

(15) As shown in the drawing, the ski according to the invention is detachable in the area of its midpoint, before the part where attached is the binding which front and rear should be mounted onto the rear portion of the ski, cut transversely from the edge to the edge. The cut is of a shape of a letter omega, whereas preferably the cut is of a shape of a cascade connection of omega letters, as illustrated in a drawing in FIG. 12. The entire width of the cut of the front portion of the ski is a mortise for a tenon formed by the cut line on the rear portion of the ski. The mortise and tenon are located in about a midpoint of the transverse section of the ski. The ski coupling is positioned in a location enabling assembly of the front of the binding to the rear portion of the ski. The arms of the coupling, resembling a shape of a letter omega, are interconnected to prevent moving the arms apart by the existing forces.

(16) In the first embodiment, for the coupling with the omega arms facing the rear of the ski they are joint by a transversal bar 5, attached by screws 4 to the arms of the coupling, the bar is located just before the front part of the binding, whereas a situated in the long axis of the ski latch/clamp 1 secures both portions of the ski against moving apart and thus separation. The latch 1 is shifted towards the front portion of the ski. In this embodiment, the bar 5 is adjacent to the front of a plate 2 for the front of the binding, on the opposite end thereof there are located openings for screws 3 fixing the front of the binding to the rear portion of the ski. In another embodiment, for coupling with the omega arms facing the front of the ski, a role of a joint is played by the front of the binding 2, attached by the screws 3 directly to the arms of the coupling. In this embodiment, two latches have been used connecting the front and rear of the ski, shifted towards the front portion of the ski and located symmetrically against the long symmetry axis of the ski near the metal edges thereof. In both versions of the embodiment, a mortise is formed in the rear portion of the ski, which ensures a smooth flow of the snow when skiing on the snow. Both portions of the ski are joint by sliding the tenon of one portion of the ski into the mortise in the other portion of the ski.

(17) The use of the cut of the ski in a shape of a cascade connection of omega letters results in that moving such a coupling apart only half allows separation of the ski that in the case of a coupling in a shape of a single omega letter may be separated only after moving apart entirely, what is illustrated in the drawing in FIG. 16.

(18) In the disclosed solution, the binding in whole is mounted to the rear half of the ski, which has no influence of the coupling on the security of the boot attachment to the ski. It allows using the majority of types of bindings available on the market. The continuity of the metal edge of the ski is interrupted on a very short distance, which has no influence on the edge grip in the conditions of hard and icy snow.