Collapsible ski

Abstract

A collapsible ski, by which the front part and a rear part of the ski, when aligned, in such position fixed by a platform, which is by hinges interconnected with a bearing plate, which is attached onto a top surface of the front part of the ski and is rotatable around geometric axis, which extends perpendicularly with respect to the top surface of the ski.

Claims

1. A collapsible ski comprising a front area with a tip, which is smoothly bent in a direction away from the ground, a rear area with a tail, which is either at least approximately flat or smoothly bent away from the ground, a central area for mounting of a ski binding which includes a front assembly and a rear assembly and is suitable for attachment of each ski shoe onto a top surface of the ski, which, while in use, faces away from the ground while the opposite sliding surface of the collapsible ski, which, while in use, faces the ground, is furnished with ski edges; which extend along at least a majority of the ski length, and wherein the collapsible ski includes a front part and a rear part, which are connected with each other and pivoted around a first geometric axis which extends parallel to said sliding surface, and which parts, when aligned, are fixed in such a position by a platform which is provided for attachment of the front assembly and the rear assembly of said ski binding, and wherein said platform is, on a bottom surface facing said front part and rear part of the ski, furnished with a centrally located cavity, in which two diametrically spaced recesses are arranged, which are adapted to cooperate with first and second arresting protrusions, of which the first arresting protrusion is provided on the front part, and the second arresting protrusion on the rear part of the ski, said platform being interconnected with the front part of the collapsible ski in a non-detachable manner by a connecting plate which is mounted on the top surface of the ski and rotatable around a second geometric axis which extends perpendicularly with respect to said top surface of the ski, said platform being in a front area adjacent to the front assembly of the ski binding furnished with a first tongue in a form of a circular arc, and in the rear area of the platform adjacent to the rear assembly of the ski binding with a second tongue in a form of a circular arc, wherein a first retaining protrusion is provided on the top surface of the front part of the ski, which is located at a distance from said second geometric axis, around which the platform is rotated, in a direction towards the ski tip, wherein said first retaining protrusion includes a groove in a form of a circular arc, which is adapted to cooperate at least with the first tongue on the front area of said platform, while a second retaining protrusion is provided on the top surface of the collapsible ski, which is located at a distance from said first retaining protrusion in a direction towards the ski tip and furnished with a groove in a form of a circular arc, which is adapted to cooperate at least with the second tongue on the rear area of the platform, and, a third retaining protrusion is provided on the top surface of the rear part of the collapsible ski at a distance from the first geometric axis, around which said front part and said rear part of the ski are pivoted, wherein said third retaining protrusion is furnished with a groove in a form of a circular arc, which is adapted to cooperate at least with the second tongue on the rear area of the platform.

2. The collapsible ski according to claim 1, wherein said connecting plate and said platform are interconnected by hinges on the front area of the platform, which is located close to the front assembly of the ski binding, such that the platform is pivoted relatively to the connecting plate around a third geometric axis which extends parallel to the top surface of the ski, and is together with said connecting plate pivoted around the second geometric axis.

3. The collapsible ski according to claim 1, wherein said second retaining protrusion on the front part of the collapsible ski is furnished with an arresting mechanism which is adapted to cooperate with a corresponding recess on the second tongue on the rear area of the platform, by which the platform is retained in a position on the top surface of the front part of the collapsible ski.

4. The collapsible ski according to claim 1, wherein said third retaining protrusion on the rear part of the collapsible ski is furnished with an arresting mechanism which is adapted to cooperate with a corresponding recess on the second tongue on the rear area of the platform, by which the platform is retained in a position on the top surface of the rear part of the collapsible ski.

5. The collapsible ski according to claim 1, wherein said front part and said rear part of the collapsible ski are connected with each other with a possibility of being pivoted around the first geometric axis by at least two pairs of levers, which are in a transversal direction of the collapsible ski equidistantly arranged, and each of them is pivotally interconnected on the one hand with the front part and on the other hand with the rear part of the ski.

Description

(1) The invention will be described on the basis of embodiments, which are shown in the attached drawings, wherein

(2) FIG. 1 is an isometric view of a collapsible ski according to the invention in its assembled i.e. functional state;

(3) FIG. 2 is a front view of the ski according to FIG. 1;

(4) FIG. 3 is an isometric view of the ski according to FIGS. 1 and 2 during disassembling;

(5) FIG. 4 is an isometric view of the ski according to FIGS. 1 and 2, also during disassembling;

(6) FIG. 5 is an isometric view of the ski according to FIGS. 1 and 2, also during disassembling;

(7) FIG. 6 is an isometric view of the ski according to FIGS. 1 and 2, also during disassembling;

(8) FIG. 7 is an isometric view of the ski according to FIGS. 1 and 2, also during disassembling;

(9) FIG. 8 is an isometric view of the ski according to FIGS. 1 and 2, also during disassembling;

(10) FIG. 9 is an isometric view of the ski according to the invention in its disassembled state, in which it is ready for storage or transport;

(11) FIG. 10 is a symbolic isometric presentation of detail A according to FIG. 6;

(12) FIG. 11 is an isometric presentation of detail B according to FIG. 8;

(13) FIG. 12 is a front view of detail C according to FIG. 9.

(14) FIGS. 1 and 2 present a collapsible ski in its assembled state, in which the ski is prepared for sliding on ground. Said ski is in its disassembled state, in which it is suitable for storage or transport in a rucksack e.g. while performing alpine or military activities, shown in FIG. 9.

(15) Such a ski generally comprises a front area 91 with a tip 910 which is smoothly bent away from the ground, a rear area 92 with a tail 920, which is either at least approximately flat or smoothly bent away from the ground, as well as a central area, which is provided for mounting of a ski binding 4 which consists of a front assembly 41 and a rear assembly 42 and is suitable for attachment of each ski shoe onto a top surface 94 of the ski, which, while in use, faces away from the ground. The opposite surface 95 of the ski, which, while in use, faces the ground, is furnished with ski edges 96, 97.

(16) Furthermore, such a ski consists of a front part 1 and a rear part 2, which are connected with each other in such a manner, that they can be pivoted relatively to each other around a first geometric axis 100 which extends parallel to the sliding surface 95 and are optionally in their aligned position fixed by means of a platform 3 which is provided for mounting of said front part 41 and said rear part 42 of the ski binding 4.

(17) Said platform 3 is, by means of a connecting plate 5 which is fixed onto the top surface 94 of the ski and can be pivoted around a second geometric axis, 501 which extends perpendicularly relative to said top surface of the ski, interconnected with the front part 1 of the ski in a non-detachable manner.

(18) Said connecting plate 5 and said platform 3 are optionally interconnected by means of hinges on the front area 31 of the platform 3, which is located closely to the first part 41 of the ski binding 4. In such a case, the platform 3 can be pivoted relatively to the connecting plate 5 around a third geometric axis 502 which extends parallel to the top surface 94 of the ski; and can be pivoted around said second geometric axis 501 together with said connecting plate 5.

(19) Said platform 3 isanalogously like in the embodiment as disclosed in SI 24358 Aon its bottom surface 33, which faces the front part 1 and the rear part 2 of the ski, furnished with a centrally located cavity 35, in which two diametrically opposite recesses 351, 352 are provided, which are adapted to cooperate with first arresting protrusion 511 and second arresting protrusion 512 respectively, wherein the first arresting protrusion is arranged on the front part 1 and the second arresting protrusion is provided on the rear part 2 of the ski. Whenever the front part 1 and the rear part 2 are aligned and said platform 3 is rotated around the second geometric axis 501 at a certain angle said first and second arresting protrusions 511, 512 can enter said cavity 35 on the platform 3. After rotating of said platform around the vertical second geometric axis 501 into a position, in which the platform 3 is aligned with both parts 1, 2 of the ski, said first and second arresting protrusions are located within said recesses 351, 352 within said cavity 35 on the platform 3 (FIG. 1) so that the latter is firmly, but still in a detachable manner interconnected both with the front part 1 and the rear part 2 of the ski.

(20) Besides, in its front area 31 adjacent to the front assembly 41 of the ski binding 4, the platform 3 is furnished with a first tongue 310 in the form of a circular arc, and in the rear area 32 adjacent to the rear assembly 42 of the ski binding 4 with a second tongue 320 also in the form of a circular arc.

(21) On the other hand, the first retaining protrusion 61 is provided on the top surface 94 of the front part 1 of the ski, which is located at a distance from the second geometric axis 501, around which the platform can be rotated, namely in a direction towards the ski tip 910, said first retaining protrusion 61 comprising a groove 610 in the form of a part of a circular arc, which is adapted to cooperate at least with the first tongue 310 on the front area 31 of the platform.

(22) Furthermore, the second retaining protrusion 62 is provided on the top surface 94 of the ski, which is located at a distance from said first retaining protrusion 61 in a direction towards the ski tip 910 and is also furnished with a groove 620 in the form of a circular arc, which is adapted to cooperate at least with the second tongue 320 on the rear area 32 of the platform 3.

(23) Moreover, the third retaining protrusion 63 is provided on the top surface of the rear part 2 of the ski at a distance from the first geometric axis 100, around which said front part 1 and said rear part 2 of the ski can be pivoted, wherein said third retaining protrusion is furnished with a groove 630 also in the form of a circular arc, which is adapted to cooperate at least with second tongue 320 on the rear area 32 of the platform 3.

(24) Said second retaining protrusion 62 on the front part 1 of the ski is preferably furnished with an arresting mechanism 621 which is adapted to cooperate with a corresponding recess 321 on the second tongue 320 on the rear area 32 of the platform 3, by which the latter is retained in each desired position on the top surface 94 of the front part 1 of the ski.

(25) Also said third retaining protrusion 63 on the rear part 2 of the ski is preferably furnished with an arresting mechanism 631 which is adapted to cooperate with the corresponding recess 321 on the second tongue 320 on the rear area 32 of the platform 3, by which the latter is retained in each desired position on the top surface 94 of the rear part 2 of the ski.

(26) Still further, in the shown embodiment, said front part 1 and said rear part 2 of the ski are connected with each other with a possibility of being pivoted around the first geometric axis 100 by means of at least two pairs of levers 71, 72, 73, 74, which are in the transversal direction of the ski equidistantly arranged, and each of them is pivotally interconnected on the one hand with the front part 1 and on the other hand with the rear part 2 of the ski.

(27) When the ski is in use, the first tongue 310 on the front area of the platform 3 is located within the groove 610 on the first retaining protrusion, while the second tongue 320 on the rear area of the platform 3 is located within the groove 630 on the third retaining protrusion, in which it is preferably arrested by means of the arresting mechanism 631, by which on the one hand both parts 1, 2 of the ski are firmly interconnected and on the other hand each rotation of the platform is prevented.

(28) After said mechanism 631 is deactivated, the platform 3 is allowed to rotate around said second geometric axis 501 (FIG. 3), by which the first and second tongues 310, 320 are released from said grooves 610, 630. Upon rotating the connecting plate 5 together with the platform 3 around the second geometric axis 501 by 180, the second tongue 320 on the rear area 32 of the platform 3 enters the groove of the second retaining protrusion 62 on the side of the tip 910 on the front part 1 of the ski, by which said firm interconnection of both parts 1, 2 of the ski is released, however they still remain connected with each other by means of the hinges in the area of the first geometric axis 100. The platform 3 rests on the top surface 94 of the front part 1 of the ski and remains interconnected therewith, while the rear part 2 of the ski can be pivoted and displaced closely to the front part 1, by which the ski is disassembled and ready for transport.