• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Summary The present invention relates to methods and arrangements for providing a classic long-sleeved ski with superior overalls and sliding properties over a conventional ski. This is achieved by a tension structure which is weakly applied to the front part of the bond, but strong force is applied to the back of the bond. This span construction is characterized in that the central part of the ski, where the binding is located, has an asymmetrical property to resist. shear forces. Nananda span construction provides a ski with most of the downward forces distributed in the fixed zone when the weight of the skier is applied in the front part of said central part, and a ski with all downward forces distributed in the sliding zone when the weight of the skier is applied in the rear part of nananda central part.
    公开号:SE1330114A1
    申请号:SE1330114
    申请日:2013-09-23
    公开日:2015-03-24
    发明作者:Mats Cedervall
    申请人:Mats Cedervall；
    IPC主号:
    专利说明:

    Technical Field The invention relates to a classic cross-country ski, in particular a ski with a span which has a fixed zone and a sliding zone.
    State of the art Classic cross-country skis generally have a range to provide good gliding properties. This span acts as a curved leaf spring. The stiffness and height of the team are chosen to match the weight of the skier. When the skier places all his weight in a comfortable place on a ski, the rigidity of the buckle should allow the fixed zone to be at least partially in contact with the snare. The contact between the fixed zone and the rope is improved when the skier shoots from below with the foot. The span is often designed so that the contact is further improved when the skier places his weight and presses with the front part of the foot. In the sliding phase, the skier puts more weight closer to the tail.
    The fixed zone on a ski has a surface with a solid wall or other method to resist back movements, such as fish mountain structure, riser skins, chemical shelling, etc. This embankment, or other method, is only effective when the contact with the substrate has significant pressure. That is to say, during the French firing phase, the ski is prevented from sliding backwards by the positive reaction force with which the surface affects the ski.
    In a traditional ski, adapted for classic skiing steps, it can be noted that the named pressure under the ski is not ideally distributed. In an ideal situation, all forces from the skier's weight and French shot would be distributed in the fixed zone. However, for skis with a traditional span, a significant part of the forces will be distributed in the sliding zones. This is to compromise the sliding in the sliding phase against the fastening in the French firing phase. The stiffer the span, the better the slide, and the softer the span, the better the fastening. 2 Professional skiers usually have a rigid span, as they can apply large French skating and staking forces. Exercisers usually have softer spans, which gives a smoother glide.
    There are a number of inventions in the art that attempt to improve the compromise between key and slide. US4300786, US4221400, US7360782, US 2011/0233900 A1 and US4754989 describe various systems and methods for statically changing the span. This does not solve the problem of having good glide and good taste, it just means that you can compromise in such a way that you, for example, choose to have poor or good glide.
    In US5427400 the characteristic of the span is changed in that the span is stiffer when standing on the handle compared to when standing on the front part of the foot. A gap in the base of the ski is used by Mr to accomplish this. This is probably not significantly more efficient than placing the front part of the foot closer to the center of the span, and the tail more offset backwards, which is a common manufacturing method.
    Similarly, in U.S. 5,829,776, the characteristics of the buckle are seen by others by pressing the tail down on a plate that hooks into the front of the binding Mr to increase the stiffness of the buckle. This is relatively limited because you get a softer span only when you lift the tail. The problem with this is that you force the skier to lift the Mien RV to reduce the span. Lifting of the handle does not usually take place in the initial phantom firing phase. Another problem with this method is that the span is stiffened when more weight is placed on it, but in the ideal situation the span should be less stiff when a lot of weight is used in the French firing phase.
    In PCT / SE2012 / 051416 the said problem is solved by by means of different mechanisms creating a span which collapses when sufficient force is applied to the other front part of the bond. A problem with a number of these embodiments is that the sound when the mechanism collapses can be experienced by large RV skiers. Another problem is that the ski's ability that only shear forces can potentially be collected, with the result that the ski's flexural stiffness decreases. Problem Solving The present invention solves the said disadvantages and compromises of traditional scope.
    This is achieved by a tension structure which is weak when sufficient force is applied to the front part of the bond, but strong force is applied to the rear part of the bond. This span construction is characterized in that the central part of the ski, where the binding is located, has an asymmetrical property to resist shear forces. It is a general edge that when bending, shear forces are formed inside the structure as bends. If a punk force presses on a point near the center of the ski, the upper part will be pushed forward in relation to the base in front of this point and Wick in relation to the base in front of this point. Thus, if the area between the front and rear of the bond is asymmetrical so that the sheath resists shear better when the force is applied to the hollow joint of the bond, this construction means that when the ski is bent with the force applied to the front of the bond, it cannot withstand bending but the force is bent with the force. on the back of the binding it can resist bending choices. This means that a large part of the force is distributed in the fastening zone when the force is applied to the front part of the bond and the force is distributed completely and the hall in the sliding zones when the force is applied to the rear part of the bond. It is also advantageous if the team is dynamic. In connection with the present invention, dynamic span means a span which has a dynamic pattern of resistance to external forces. A traditional span acts as a leaf spring, thus giving a progressive resistance to external forces. The dynamic span is a span whose resistance initially functions as a normal progressive span, but when the applied downward force becomes greater than a certain spruce value, the span almost completely collapses and thus all the forces in the fasting zone are distributed. In the following, this state is called the lower span state. These span constructions with asymmetrical ability to withstand shear forces and in some cases dynamic span are described in more detail in the detailed description and figures. According to a first embodiment of the invention, a clamp construction with an asymmetrical ability to withstand shear forces is provided by having a sheath consisting of a front and a rear part. These parts are united by a common base and upper side. A binding is placed near the middle of the ski. The base carried two sliding zones, front and rear, respectively, and a fixed zone between them. Inside the ski, between the front and rear part, there is a diagonal carbon fiber reinforcement which starts at the base near the heel part of the bond and goes obliquely upwards in a straight line towards the upper part of the ski and ends near the front part of the bond.
    Said carbon fiber reinforcement is thin and thus cannot absorb compressive forces above a certain level without folding, however, it can absorb large tensile forces. Thus, said carbon fiber reinforcement can prevent shearing where the upper part of the ski is pushed forward compared to the base of the ski, but cannot absorb large forces where the upper part of the ski is pressed backwards evenly with the ski base.
    According to a second embodiment of the invention, a span construction with asymmetrical ability to withstand shear forces and in addition a dynamic span is provided by having a sheath similar to that in the first embodiment. The upper part of the ski consists of an expensive carbon fiber laminate and instead of loading the ski near the front end of the diagonal carbon fiber reinforcement, the ski is loaded in the middle of said layer of carbon fiber laminate. This means that said upper carbon fiber laminate bends and due to the compressive forces in the upper side of the ski the structure collapses and said diagonal carbon fiber reinforcement bends.
    This embodiment also has a rigid carbon fiber plate attached below said upper carbon fiber laminate. This plate prevents the carbon fiber laminate from bending upwards.
    According to a third embodiment of the invention, a span structure with asymmetrical shape is provided to withstand shear forces on similar salt as in the first and second embodiments, except that instead of a diagonal carbon fiber reinforcement there are two diagonal carbon fiber reinforcements. Between these there is a vertical thin reinforcement that connects the upper part of the ski with the base. This vertical reinforcement means that the upper part cannot bend upright, and that a force applied downwards near this reinforcement must exceed a certain strength before the upper part bends.
    According to a fourth embodiment of the invention, a span construction with asymmetrical ability is provided to resist shear forces by having a sheath consisting of a front and a rear part. These parts are united by a common base and upper side. A binding is placed near the middle of the ski. The base has two sliding zones, front and rear, respectively, and a fixed zone between them. Inside the ski, between the front and rear, is a diagonal construction that can only absorb compressive forces. This starts in the upper part near the half of the binding and goes obliquely down in a straight line towards the base of the ski and ends near the front part of the binding. Thus, displacement is prevented in a manner similar to previous embodiments, with the difference that the diagonal structure absorbs compressive forces instead of pulling.
    According to a fifth embodiment of the invention, a clamp structure is provided with an asymmetrical shape to withstand shear forces by having a sheath consisting of a front and a rear part. These parts are united by a common base and upper side. A binding is placed near the middle of the ski. The base has two sliding zones, front and rear, respectively, and a fixed zone between them. Inside the ski, between the front and rear part, there are a number of plates on top of each other with chamfers on the top and bottom that go perpendicular to the longitudinal direction of the ski. These plates sit together with the front and rear part of the ski. These chamfers are designed so that the plates can slide in the longitudinal direction of the ski at one hall but not at the other hall. Thus, these plates absorb shear forces at one hall but not at the other. This has the same effect as in previously described embodiments. According to a sixth embodiment of the invention, a span construction with asymmetrical ability is provided to withstand shear forces by having a sheath consisting of a front, a central part and a rear part. These parts are united by a common base and upper side. A binding is placed near the central part of the ski. The base has two sliding zones, front and rear, respectively, and a fixed zone between them. Inside the ski, in the central part between the front and rear part, the ski is filled with soft foam. At the central part, the ski's side cradles consist of carbon fiber-reinforced plastic, with all fibers directed obliquely upwards and forwards. These side cradles absorb large shear forces in the ski in one direction but not in the other. This has the same effect as in previously described embodiments.
    An advantage of the embodiments of the invention is that they provide a ski with both good sliding properties and good fastening properties at the same time.
    Another advantage is that since with the invention the height of the bucket can be designed with a significant gap between the base and the cord, it is possible to have surface structures in the coating with very good fastening properties, such as fish feather patterns etc.
    List of figures Figure 1 illustrates the basic principle of why asymmetrical shapes that resist shear forces have a positive effect on cross-country skis.
    Figure 2 illustrates a detail of a classic cross-country ski with a construction that provides asymmetrical ability to withstand shear forces.
    The longitudinal ski is loaded near the half of the binding.
    Figure 3 illustrates the same detail as Figure 2. The longitudinal ski is loaded near the front of the binding.
    Figure 4 illustrates a similar detail as Figure 2. The length ski is loaded in the middle of the structure. Figure illustrates a detail of another construction that provides asymmetric Mt stomach to resist. shear forces. The longitudinal sheath is loaded near the holding portion of the binding Figure 6 illustrates the same detail as Figure 5. The longitudinal sheath is loaded near the front of the binding.
    Figure 7 illustrates a detail of yet another construction which gives asymmetrical shapeAga to resist. shear forces. The longitudinal ski is loaded near the half of the binding.
    Figure 8 illustrates the same detail as Figure 7. The longitudinal ski is loaded near the front of the binding.
    Figure 9 illustrates a detail of yet another construction which gives asymmetrical shapeAga to resist. shear forces.
    Figure illustrates an Overview of a longitudinal ski with a construction that provides an asymmetrical shape to withstand shear forces.
    Figure 11 illustrates a detail of yet another construction that provides asymmetrical shape to resist. shear forces.
    DETAILED DESCRIPTION OF THE INVENTION The invention will be described in more detail below with reference to the accompanying figures, in which a number of embodiments of the invention are shown.
    However, the invention may be embodied in many different forms and should not be construed as limited to the embodiments shown herein, rather, these embodiments are provided so that this detailed description is thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, like reference numerals refer to like elements throughout.
    Furthermore, those skilled in the art will recognize that while the present invention is primarily described as an apparatus as part of a sheath, the invention may be practiced in devices outside the sheath which may perform the functions described herein. 8 In addition Mr it be clear Mr a professional in the field that the drawings are not fully detailed or on a scale. For illustrative purposes, certain parts are shown larger and disproportionate in relation to reality.
    Figure 1 illustrates the basic principle of why asymmetrical ability to resist shear forces has a positive effect Mr cross-country skis. The construction in Figure 1 consists of carbon fiber laminated laminates seen from the side. the construction dr of truss type. The construction consists of three upper parts, 105, 101 and 107 and three lower parts 106, 102 and 108, as well as two vertical support parts 103 and 104 and finally a diagonal part 110. This diagonal part is thin and can only absorb a limited amount of compressive forces. before it bends. The upper part of Figure 1 shows the effect of a force 120 applied above the lower spirit of the diagonal part 110. The upper part of Figure 1 shows the effect of a force 124 applied above the upper spirit of the diagonal part 110. When the force 120 is applied, the diagonal 110 is subjected to tensile forces and thus the structure in the upper part of Figure 1 is strong against the force 120. The force 124 is applied in the manner shown in the lower part of Figure 1, the diagonal 110 is subjected to compressive forces and since the diagonal 110 can not withstand compressive forces it is bent. () the part 101 is displaced in relation to the lower part 102. Thus the construction is weak against the force 124. It can be noted that when the force 120 is applied the construction of the substrate is supported in the spirits, illustrated by the forces 121 and 122. It can further be noted that when the force 124 is applied The construction is supported by the base in one spirit as well as by the construction itself, illustrated by the forces 123 and 125. A person skilled in the art will recognize that this type of construction can be used in cross-country skis Mr to provide a span which has widely different buoy resistances depending on where the force is applied. Figure 2 and Figure 3 illustrate a preferred embodiment of the invention. Figure 2 and Figure 3 show a cross-section of an enlarged part of the middle section of the ski. Figure 2 shows the structure when loaded in the rear spirit by the force 250 and Figure 3 shows the structure when loaded in the front spirit by the force 350.
    The force 250 corresponds to a skier with the weight distributed on the tail which is sought after in the sliding phase of the longitudinal step and the force 350 corresponds to a skier with the force distributed on the front part of the foot which is sought after in the longitudinal phase of the longitudinal step. The ski consists of an upper surface 10201 and a lower surface 203. The ski has an area where the construction of the ski has an asymmetrical ability to resist. shear force. This area is hereinafter referred to as the asymmetric area and is bounded by two vertical pillar laminates 221 and 222. In the asymmetric area, the upper surface 202 and the lower surface 205 are designated. 1Front and behind the asymmetrical part were the sheath of vertical pillar laminates 22 compressive forces when the ski is loaded. Outside the vertical standing laminates, the sheath is filled with foam material 210. The asymmetrical area is characterized by a diagonal carbon fiber laminate 206 which can only absorb a limited compressive force before it bends. When the ski is loaded with a rear force 250 according to Figure 2, the carbon fiber laminate 206 is subjected to tensile forces and the structure has a high bending resistance. When the ski is loaded with a front force 350 according to Figure 3, the carbon fiber laminate 206 is subjected to compressive forces and bends according to Figure 3 and the construction has a weak bending resistance. Those skilled in the art will appreciate that if the fixed zone is placed close to the force 350 and the sliding zones in the front and rear part of the ski, a ski with good fixed and sliding properties is obtained.
    Figure 4 illustrates an embodiment which is a variant of the construction illustrated in Figure 2 and Figure 3. The difference is that the force from the French firing phase is placed in the middle of the upper surface 202 of the asymmetric area. The upper surface 202 is thin and will bend when loaded in the French firing phase. . When the upper surface 202 bends, the compressive forces in the upper part 202 will cause it to collapse and the span to have a dynamic character. When the upper part 202 bends, the diagonal 206 will also bend. 420 is a plate with strong bending resistance which prevents the upper part 202 from bending upwards when the ski is loaded in other parts than at the force of the force 450. If the ski is loaded further behind similar force 250, the diagonal 206 will resist shear forces in the ski in the same way as in Figure 2 and a buoy-resistant span is obtained. Figure and Figure 6 illustrate a further preferred embodiment of the invention. Figure 5 and Figure 6 show a cross-section of an enlarged part of the middle section of the ski. Figure 5 shows the structure when loaded in the rear spirit by the force 550 and Figure 6 shows the structure when loaded in the front spirit by the force 650.
    The force 550 corresponds to a skier with the weight distributed on the tail which is sought after in the sliding phase of the longitudinal step and the force 650 corresponds to a skier with the force distributed on the front part of the foot which is sought after in the longitudinal phase of the longitudinal step. The ski consists of an upper surface 501 and a lower surface 503. The ski has an area where the construction of the ski has an asymmetrical ability to resist. shear force. This area is hereinafter referred to as the asymmetric area and is bounded by two vertical pillar laminates 509 and 510. In the asymmetric area, the upper surface 502 and the lower surface 505 are designated.
    In front of and behind the asymmetrical part, the ski was made of vertical standing laminates 509 and 510, which absorb compressive forces when the ski is loaded. Outside the vertical standing laminates, the sheath is filled with foam material 520. The asymmetrical area is characterized by two diagonal carbon fiber laminates 506 and 507 which can only absorb limited compressive force before they bend. The asymmetrical area also has a thin laminate 508 which, like the diagonal laminates 506 and 507, can only absorb limited compressive force before it bends. The laminate 508 prevents the upper part 502 from bending upwards. When the ski is loaded with a rear force 550 according to Figure 5, the carbon fiber laminates 506 and 507 RV are subjected to tensile forces and the carbon fiber laminate 508 RV a limited compressive force.
    The construction has a Mgt buoy resistance in this case. When the sheath is loaded with a front force 650 according to Figure 6, the carbon fiber laminate 508 is subjected to a greater part of the compressive force when the force is applied to the force of the force 550. In addition, the force 650 is significantly more than the force 550
    Thus, the structure collapses in a manner similar to the embodiment described in Figure 4. The person skilled in the art realizes that if the fixed zone is placed close to the force 650 and the sliding zones in the front and rear part of the ski, a ski with good fixed and sliding properties is obtained. Figure 7 and Figure 8 illustrate a further preferred embodiment of the invention. Figure 7 and Figure 8 show a cross-section of an enlarged part of the middle section of the ski. Figure 7 shows the structure when it is loaded in the rear spirit with the force 750 and Figure 8 shows the structure when it is loaded in the front spirit with the force 850.
    The force 750 corresponds to a skier with the weight distributed on the tail which is sought after in the sliding phase of the longitudinal step and the force 850 corresponds to a skier with the force distributed on the front part of the foot which is sought after in the longitudinal phase of the longitudinal step. The ski consists of an upper part 701 and a lower part 703. The ski has an area where the construction of the ski has asymmetrical ability to resist. shear force. This area is hereinafter referred to as the asymmetric area and is bounded by two vertical steel laminates 721 and 722. In the asymmetric area, the upper part 702 and the lower part 705 are named.
    In front of and behind the asymmetrical part, the ski was made of vertical standing laminates 721 and 722, which absorb compressive forces when the ski is loaded. Outside the vertical standing laminates 721 and 722, the ski is filled with foam material 710. The asymmetrical area is characterized by a diagonal strut consisting of an upper part 731 and a lower part 730.
    Said diagonal strut can only absorb compressive forces. When the ski is loaded with a rear force 750 according to Figure 7, said struts are subjected to compressive forces and the construction has a high bending resistance. When the ski is loaded with a front force 850 according to Figure 8, said struts consisting of 730 and 731 are subjected to tensile forces, it divides according to Figure 8 and the construction has a weak bending resistance. Those skilled in the art will appreciate that if the fixed zone is placed close to the force 850 and the sliding zones in the front and rear part of the ski, a ski with good firmness and sliding properties is obtained. Figure 9 illustrates a further preferred embodiment of the invention. Figure 9 shows a cross-section of an enlarged part of the middle section of the ski. Figure 9 shows the construction the needle is loaded in the rear spirit with the force 950. The force 950 corresponds to a skier with the weight distributed on the tail, which is sought after in the sliding phase of the longitudinal step.
    The ski consists of an upper part 901 and a lower part 903. The ski has an area where the construction of the ski has an asymmetrical ability to resist. shear force. This area is hereinafter referred to as the asymmetric area and consists of a number of horizontal plates 910 and the top 10 plate 905 and the bottom plate 903. In the asymmetric area the upper surface 902 and the lower surface 906 are named. Outside the asymmetric area the sheath 9 is filled with ski Said horizontal plates 910 have chamfers perpendicular to the longitudinal direction of the ski on the top and bottom. The underside of the top plate is chamfered on the same salt as the underside of the plates 910. The top of the bottom plate 904 is chamfered on the same salt as the top of the plates 910. Said chamfers are wider on the underside than on the top. This causes voids to form 920 when these plates are stacked on top of each other. With the location of the chamfers shown in Figure 9, a plate can only slide backwards in relation to the plate below. When the plates are mounted according to Figure 9, a ski is thus obtained with an area where the construction of the ski has an asymmetrical ability to withstand shear force. In a manner similar to previous embodiments, the sheath will thus be weak against bending forces when the force is applied according to the force 951 but strong against bending forces when the force is applied according to the force 950.
    Figure illustrates an overview of a cross-country ski with a construction that gives an asymmetrical shape to withstand shear forces. The ski 1001 has an area of 1002 ddr. The construction of the ski has an asymmetrical ability to withstand shear force. This asymmetric area corresponds to the embodiment described in Figure 2 and Figure 3. Figure 10 also illustrates where the boot 1003 is suitably placed in relation to the asymmetric area 1002. Figure 11 illustrates a further preferred embodiment of the invention. Figure 9 shows the structure of the side cradle of the ski in an enlarged part of the middle section of the ski. Figure 11 shows the construction when it is loaded in the rear spirit with the force 1150. The force 11 corresponds to a skier with the weight distributed on the handle, which is sought after in the sliding phase of the longitudinal step. The ski consists of an upper part 1101 and a lower part 1103. The ski has an area where the construction of the ski has an asymmetrical ability to withstand shear force. This area is called in the following Mr the asymmetrical area and differs from the other construction of the ski in that the ski side cradle 1120 consists of carbon fiber directed diagonally upwards and forwards. Inside the ski, this area is filled with soft foam. The direction of the fibers in combination with the said soft foam means that the side cradle in this area of choice can absorb tensile forces in the direction of the fibers, but not compressive forces or tensile forces in other directions. Outside the asymmetrical area, the side cradles of the ski 1120 consist of laminate with fiber in several directions and a core consisting of hard and rigid foam. Thus, a ski with an area where the construction of the ski is obtained has an asymmetrical ability to resist. shear force. In a manner similar to previous embodiments, the sheath will thus be weak against bending forces when the force is applied according to the force 1151 but strong against bending forces when the force is applied according to the force 1150. 1
    权利要求:
    Claims (14)
    [1]
    A cross-country ski (1001) for practicing classical cross-country skiing, including a sliding phase and a French-projecting phase, characterized by: A ski comprising a front part, a central part, and a rear part, said front part, said central part and said rear part has a common lower surface and a common upper surface, common lower surface has a front and a rear sliding surface and a central fixed zone, said central part has an asymmetrical shape to resist shear force.
    [2]
    A longitudinal ski (200) according to claim 1, characterized in that said asymmetrical shape is obtained in that said central part has a diagonal structural element connecting the upper part of said front part with the lower part of said rear part, said structural element having shaped large tensile forces but only small compressive forces.
    [3]
    A longitudinal ski (200) according to claim 2, characterized in that said structural element consists of a thin disc which bends when subjected to compressive force.
    [4]
    A longitudinal ski (400) according to claim 1, 2 or 3, characterized in that said upper surface at said central part is constructed in such a way that it bends when said central part is subjected to compressive forces (450) from above.
    [5]
    A longitudinal ski (400) according to claim 4, characterized in that said upper surface at said central part has a rigid plate (420) mounted on the underside, said rigid plate prevents said upper surface from bending upwards.
    [6]
    A longitudinal ski (500) according to claim 1, characterized in that said asymmetrical shape is obtained in that said central part has at least two diagonal structural elements (506, 507) connecting the upper part of said central part with the lower part of said central part, said Upper surface and said lower surface of said central part are connected to at least one vertical structural element, said at least two diagonal structural elements and said at least one vertical structural element are able to withstand large tensile forces but only small compressive forces.
    [7]
    A longitudinal ski (500) according to claim 6, characterized in that said diminstone two diagonal structural elements and said at least one 2 vertical structural elements consist of thin discs which bend when subjected to compressive force.
    [8]
    A longitudinal ski (500) according to claim 6 or 7, characterized in that said upper part of said central part (502) is constructed in such a way that it bends when said central part is subjected to Mr compressive forces (650) from above.
    [9]
    A longitudinal ski (700) according to claim 1, characterized in that said asymmetrical shape is obtained in that said central part has a diagonal structural element connecting the upper part of said rear part with the lower part of said front part, said structural element resists large compressive forces but only small tensile forces.
    [10]
    A longitudinal ski (900) according to claim 1, characterized in that said asymmetrical shape is obtained in that said central part has at least two structural elements, said at least two structural elements can only slide at one hall in relation to each other.
    [11]
    A longitudinal ski (900) according to claim 10, characterized in that said at least two structural elements are oriented horizontally.
    [12]
    A cross-country ski (900) according to claim 10, characterized in that said at least two structural elements are oriented vertically.
    [13]
    A longitudinal ski (900) according to claim 10, 11 or 12, characterized in that said at least two structural elements have vertical chamfers perpendicular to the longitudinal direction of said longitudinal ski designed in such a way that said at least two structural elements can only slide at one hall in relation to each other .
    [14]
    A longitudinal ski (1100) according to claim 1, characterized in that said asymmetrical capacity is obtained in that said central part comprises side cradles with the ability to absorb more forces in one direction than other directions. 202 200 222 206 2 221 201 203 Figure 3 221222 206 200 202 122 121 123 203 503 Figure 7 700 900 Figure 9 901 1100111114111111114111111 1111111111111PNIN 9 902 9 11111 111111 • 1 1111111 111111111111111101111115011111 9090 906.
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    同族专利:
    公开号 | 公开日
    SE539550C2|2017-10-10|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    2019-04-30| NUG| Patent has lapsed|
    优先权:
    申请号 | 申请日 | 专利标题
    SE1330114A|SE539550C2|2013-09-23|2013-09-23|Cross-country skiing for the practice of classic cross-country skiing|SE1330114A| SE539550C2|2013-09-23|2013-09-23|Cross-country skiing for the practice of classic cross-country skiing|
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