• 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:
    Modern downhill skis use their curved edges for easy swing release. In the further course of the curve, they usually break out of their own snow groove and slide sideways. This invention adopts the principle of traveling on a curved edge, but shortens it to a small area behind the ski boot. The edge in this invention is nothing more than the bottom edge of an inclined curved plate. In each case two such curved plates or fins (7) are mirror-symmetrically attached to the rear of the ski. They extend diagonally down to the level of the ski run area. Even with a slight edge of the ski, the tail fin (7) of each side cuts an approximately circular groove in the snow surface, the depth of which can be increased by simultaneous reserve of the driver. The weight of the driver acts directly on the 12 cm short tail fin (7). Even on hard surfaces such as ice, the ski can keep track and without slipping sideways on the edge
    公开号:AT516428A1
    申请号:T782/2014
    申请日:2014-10-23
    公开日:2016-05-15
    发明作者:Tomas Podesva；Peter Podesva
    申请人:Tomas Podesva；
    IPC主号:
    专利说明:

    Title of the invention
    Alpine skis with curved tail fins for directional control
    Description Introduction
    The invention relates to alpine skis for groomed slopes and open terrain.
    State of the art
    On groomed slopes dominated today the cut momentum. This so-called "carving swing" is automatically triggered by the edge of the waisted "carving ski". In the further swing curve, the edge cuts a circular groove with a predefined by the waist radius.
    The radius can be slightly reduced by greater inclination of the driver in the curve, d, h, by larger Aufkantwinkel.
    The groove in the snow has only limited shearing resistance and therefore breaks in the middle of the carving momentum and makes the ski slide sideways like the classic ski in the parallel turn. Ski experts control the curvature radius actually driven by upstand angle (as far as possible), intentional drift (lengthen the curve) or jump tum ("shortens the curve").
    The weakness of the "carving swing" with the waisted "carving ski" is its only cumbersome controllable curve radius, the low grip of the edge on real snow pad and the sudden tearing of a ski due to unevenness of the ground.
    In the past, some inventors have sought to solve the problems of ski-swing of the then-non-waisted skis and have proposed various means of influencing the sliding behavior. US Pat. No. 3,871,671 or Re. 29,659 (Bildner, 1962) "Radial ski having a profiled running surface" proposes a multi-layer construction of the ski body, consisting of thin horizontal layers of different widths, resulting in a similarly composed ski edge.
    Unlike our application, these are not freestanding plates or fins. http: // www. freepatentsonline.com/RE29659.pdf US Pat. No. 3,063,728 (Patterson, 1962) presents a device for influencing the sliding behavior of the ski, which is located in the foot area of the ski. The aim of this invention is a better grip on ice sheets.
    On the smooth, unbroken ski edge various metal plates should be placed in said area, with perforated, serrated or otherwise profiled edges. These will cut like a saw in the icy pad and give the ski better grip.
    Unlike in this application, the proposed metal plates have no distance to the ski body. They are tightly pressed against the ski cheek or the ski underside and bolted to it. http://www.ffeepatentsonline.com/3063728.pdf
    US Pat. No. 4,752,082 A (Sevington, 1988) describes a U-shaped carrier which is attached to the ski surface and whose vertical walls extend to the snow pad on both sides of the ski. These walls are waved in the back section of the ski. Each "wave" works like a separate plate of action ("fin" in our diction), i. cuts the snow pad at the driver's reserve. " The subject invention should facilitate turning " (Column 1, lines 9-10), " .. the skier can make a swing by leaning backwards and turning his feet in the desired direction of travel ... " (Column 2, lines 61 to 63),
    Unlike the Finns in our application here are flat plates in the direction of travel, which are arranged perpendicular to the tread and tight against the ski cheek. http: // www. free patent online. com / 4752082 .pdf
    The unwanted sideways slippage at typical ski swing wanted to prevent two recent US patent applications.
    Anton F.Wilson's "Gliding Skis" US 2004/0084879 Al are waisted skis with the prescribed width "between 25 and 44mm" under the ski boot and "secondary ski edges that allow ski turns with variable carving radii on a single pair of skis. "Http://www.freepatentsonline.com/20040084879.pdf
    Unlike our registration, these "secondary ski edges" are not only attached to the ski rear but also mirrored on the ski shovel, symmetrical to the geometric ski center where the ski boot is located. Furthermore, our registration requires the normal ski width, which exceeds the stated "44mm" in all cases.
    The second U.S. patent application, Thomas Frederick Oafer's "Ice Carver Ski" US 2004/0080142 Al, calls the additional edge "outrigger edge", i. Outrigger edge and wants to use it on icy slopes. http://www.ffeepatentsonline.com/2004008Q142.pdf "Outrigger Edge improves the rotability and control of skis and snowboards on ice or in snow. It is attached sideways and slightly above the normal ski edge and touches the snow or ice only with sufficient inclination of the ski with respect to the surface "
    Unlike in our application, these "outrigger edges" run along the entire ski or consist of several parts that extend over the entire length.
    Such a ski with "boom edges", as shown in Fig.4a to 5b, can not be rotated at all. The lateral and rear fins in our application are therefore very short (cut length may not exceed 5 to 10% of the ski length) but in the following description of his technical solution, the inventor says without further explanation that he invented his invention near the weight center of the skier has applied and tested.
    He apparently means that he has mounted the "outrigger edges" in the binding area. In his claims 14 to 16, he limits the length of these edges, without explaining their position on the ski in more detail. . "14 An article according to claim 1, characterized in that said cantilever edge extends over only a portion of said first edge. "For our application, we have demonstrated on innumerable prototypes that only very short" outrigger edges "are actually rotating in the binding region to let. And they work together with rear fins, which are attached to a sloping ski rear. This embodiment of the ski rear is not mentioned in the US patent application US 2004/0080142.
    Even before the introduction of carving skis Manfred Winkler registered in 1984 a "tandem steel edge" under DE 3411000 Al. http: // worldwide .espacenet.com / publicati onDetai 1 s / bibl io DB = worl dwide. espac enet.com & n = 0 & ND = 3 & adiacent = true & locale = en EP & FT = D & date = l9850926 & CC = DE & NR = 3411000A1 & KC = A1
    The aim of the invention was a better grip of the inclined ski on steep and hard slopes. The second edge preceded the then almost straight ski edge and ran diagonally downwards from the ski cheek almost to the level of the tread. Again, this invention differs from our application in that the second edge is too long, making ski steering impossible by slow rotation of the whole ski about the vertical axis and the associated skew of the second edge or fin. The rotational resistance of the cut long edge is just too big.
    The prior art also includes the ski according to the patent FR 1 340 031 A (Barkhausen, 1963): the use of vertical plates in the longitudinal direction, their size and shape, the intended function of the directional control.
    Different is the fixed arrangement of a plate below the ski tip, the rotatability of the second plate and the large distance between the two plates. In firmer snowpacks, this ski will cling like a touring ski with attached harsh iron or like a blunt saw blade in hard wood, and is therefore absolutely useless on today's groomed slopes.
    The ski runs only in loose snow, which was not a big disadvantage in its time of origin.
    The location of the fins in our application allows their metered impressions in hard pad, controlled by the weight shift to the rear. Unintentionally strong cutting slows the ski and causes the driver to tilt forward. Through the fixed ski boot transmits this torque on the ski and lifts the fin out of the jam.
    The ski described in FR 2 706 780 A1 (Pasquet, 1994) shows a remote relationship with this application, although other objectives have been stated here: not the directional control, but the stabilization of the sliding by a second tread, the return brake by the side of the Second tread wearers attached Harsch irons and a speed control through rudimentary fin-like spikes. For the activation of these functions is a preparatory fixation of the angle between the two treads by means of a suitable pad and a compression of the ends of the two treads by heavy load on the pivot point. In this way, the longer upper tread snow contact and resiliently supports the skier to the rear, while the attached to the support of the upper tread metal parts extend into the snow and brake as needed. These must not have too much lateral resistance in order not to influence the classic directional control over the edge. For the return brake when walking, the loosening of the front suspension of the carrier is necessary.
    The introduction of vertical rear fins for short skis in 2006 as a second control element (after the ski edges) according to our Austrian patent AT 503 250 brought light swing release even in difficult open terrain, freely selectable turning radius and better grip in the curve. However, the skier must actually burden the tail fins with appropriate reserves if he wants to take advantage of them, i. E. he must not drive in stiff "carving" attitude, but dynamically change between reserve and reserve.
    Until 2008 was further developed, the Finns laid closer to the heel and introduced a new fin in the ski axis, thereby increasing the contact pressure on the tail fins and improved the smoothness. The result was patented under AT 506 544 and published as European Patent Application EP 09450065. An unauthorized specification of AT 506 544 was filed by Dusan Peterka as WO 2011098054 A1.
    As a disadvantage of the "ski with Heckfinnen" was the necessary reserve of the driver in the swing-triggering. In 2012, side fins were introduced in the binding area, which automatically cut into the snow under the edge of the ski in the curve and thus control the course of each "carving" swing, AT 512 396.
    All three patents on "Skis with Finns" use flat fins oriented in the longitudinal axis of the ski. These ensure the highest directional stability in the current direction of travel. For a ski swing, the rider must turn both ski tips in the desired direction, i. the skis turn slightly about their vertical axes. Thanks to the short overall length of all Finns already here is a low torque. On an ice plate, however, this inclination can trigger an uncontrolled slipping. In contrast, in heavy snow every swing requires a certain tension of the leg muscles.
    Object of the invention
    The invention is based on the most widely used ski for groomed slopes, the "carving ski" and its improvement by AT 512 396 and has set itself the task of the function of the long "carving edge" and all previous Finns by a short curved fin on the ski. Heck take over.
    Compared to all previous "Skis with Heckfinnen", it should be enough to just edge up - this inclination of the rider / ski is present in every curve - to trigger the desired momentum. This is much easier than turning the ski tips in the desired direction.
    This short "carving edge" behind the ski boot can not tear off the ski like the heavily curved edge on the blade of today's skis.
    This eliminates typical knee injuries such as cruciate ligament rupture.
    The shift of the long "carving edge" to a small area behind the shoe should also bring better grip on hard and steep slopes. Because the pressure on each cm edge length is much higher in this application than the usual long edge. The goal is a ski that can drive very fast corners on the edge, where conventional carving skis are already drifting sideways.
    The subject of our application should not only be able to drive bows with the radius determined by its sidecut. Not the geometry of the ski waist but the skier himself should determine the curve through active footwork.
    The advantages of the previous "Skis with Heckfinnen" should be preserved. Especially the quick change of direction on any surface at the driver's reserve. Solution of the problem is achieved by the features of the characterizing part of claim 1 to 5.
    The invention has achieved the object by a bent fin on each side of the ski-tail. The approximately 10 to 15 cm long and 2 to 5 cm high Finns in the form of thin plates are mirror images of the symmetry plane of the ski. The fins are not perpendicular to the ski tread, but obliquely, projecting down. The lower edge of each fin is arcuately curved and tapered downwards. It lies approximately parallel to the plane of the ski tread, but slightly higher than this, so as not to disturb the sliding of the ski on the whole tread.
    The best driving characteristics on hard snow and ice were observed with 12cm long edges with curve radii between 1.5 and 3 m, which rise slowly in side view in the rear direction. This means 2 to 3mm height above the level of the ski tread at the front end of the edge and 4 to 8mm height at the back end.
    The fins are inclined at an angle of 5 to 30 ° to the vertical, i. mounted to the plane of symmetry of the ski, projecting in the direction down from this. With the driver leaning in the curve and the corresponding edge of the ski, the fins should penetrate as vertically as possible into the snow base, which results in the most optimal shearing resistance.
    The fin is dimensioned so that it penetrates deeper into the snow during the entire swing curve than the long ski edge itself. It also lies directly under the skier's heel and can thus transfer the forces very efficiently to the snow surface.
    During the swing, therefore, the narrow tree cuts a deeper groove in the snow base, which can withstand a greater centrifugal force than the groove created by the ski edge itself.
    The fin extends from the top to the level of the ski tread. She must not go deeper to avoid the gliding of the ski on full tread.
    The upper edge of the fin is fastened to a bow-shaped cut-out rear body.
    The fin on one side is activated automatically by the driver's inclination in the curve and / or by the conscious edge on this fin.
    The active fin of this invention cuts its own groove in the curve, which is much deeper and stronger than the groove of the long ski edge, thus overriding its control function. The snow pad, especially the wall of the groove responds to it with appropriate pressure at an angle to the direction of travel.
    At this point a comparison with all previous inventions under the title "Alpinski with Heckfinnen" is appropriate. The flat (not curved) fins produce the torque required for cornering solely by their inclination with respect to the current direction of travel. This inclination is caused by the "footwork" of the skier and of course requires some effort.
    In the subject of this application, the curved notch takes over this effort.
    Effects of the Invention and Subclaims
    With this invention, a ski with short, radically curved "carving" edges of the fins, which are mounted on both sides of the ski rear.
    By this arrangement, the positive effects of the modern "carving" skis have been maintained - first and foremost the slight swing release by mere upending. Their negative effects, such as the inadvertent cutting of the front ski edge and the tearing of the ski, have been eliminated.
    The pressure on each cm of the edge length is of course much higher than the conventional ski with its long edges and can be increased by a possible reserve of the driver even more. Even on very hard surfaces and ice, this ski d can ride on the edge without lateral ripping.
    The characteristics of the earlier invention "ski with tail fins" were also retained. For example, the variable radius of curvature by corresponding footwork of the driver and the better directional stability through the use of the Heckfinnen itself.
    Unteransprach 2 allows the carrier according to the invention attach to the surface of the ski. The resulting jump on the sliding surface brakes at the driver's reserve and avoids falls to the rear. This construction method is preferred to subheading 3 in most cases.
    Subclaim 3 lets the carrier according to the invention connect seamlessly to the end of the ski. This increases the speed when gliding, but increases the risk of tipping backwards. Not suitable for free and steep terrain, but quite excellent for normal slopes.
    Unteranspruch 4 defines an optimal for most applications variant of this invention: the paired, symmetrical arrangement of the fins with respect to the longitudinal axis of the ski and the inclination of the fins with respect to the tread. The latter feature counteracts the typical carving momentum on a typical slope and ensures sufficient grip even for higher cornering speeds on hard or muddy snow surfaces.
    Subdivided 5 positioned on the ascending support an additional fin in the plane of symmetry of the ski, which brings a better tracking.
    Aufzählung and short description of the drawing figures
    In the drawings, the subject invention is shown, for example.
    FIGS. 1 and 1 b show a ski according to the invention according to claims 1, 2 and 4, i. in the variant with a carrier fastened on the upper side of the ski body and a pair of curved fins attached to the cut-out side cheeks of the rear portion of the carrier and finally also the central fin in the plane of symmetry according to claim 5.
    The Fig.lc, ld and le show cross sections through the ski according to the invention according to Fig.l and lb in the support area. Fig.lc shows the ski body with the overlying carrier and the rear binding jaw. Fig.ld brings the cross section of the carrier with both obliquely mounted side fins and the vertical fin in the ski axis according to claim 5. Fig.le finally shows only the carrier and the two side fins in its rear portion.
    Figures 2 and 2b show a ski according to the invention according to claims 1, 3 and 4, i. in the variant with an obliquely ascending support, which connects seamlessly to the end of the ski body and a pair of curved fins, which are attached to the cut-out side cheeks of the rear portion of the wearer.
    FIGS. 2c, 2d and 2e show cross sections through the ski according to the invention according to FIGS. 2 and 2b. Fig.2c shows the ski body with the overlying rear binding jaw. Figures 2d and 2e bring the cross section of the carrier with two obliquely mounted lateral companies.
    Figiirenbeschreibung
    According to the embodiment shown in Figures 1 and 1b, a conventional downhill ski 1, e.g. the so-called "Fun Carver" shortened to the length of about 1 m, i. cut off at the rear end, creating a new ski end II.
    On the top 8 of the ski a structure 3 is mounted in the binding area, which extends obliquely up to its rear end. The structure serves as a carrier of the curved tail fins 7 and the flat vertical fin 12 in the plane of symmetry of the ski.
    The side cheeks 5 of the carrier in its rear portion must be cut out arcuately and also beveled so that they can serve as bearing surfaces for the curved side fins 7.
    The fins 7 themselves are cut out of 3 mm thick aluminum plate as shown in FIG. 1b and gently bent as shown in FIG. 1 until their lower edges 10 form a circle segment with the radius of curvature between 1.5 and 3 m. Then the fins 7 are fixed by means of about 6 screws on the side cheeks 5 of the support 3, symmetrical to the ski axis. The lower fin edge 10 may not be below the level of the ski tread 6.
    Finally, at the bottom of the rear portion of the carrier 3 in its longitudinal axis a single Heckfinne 12 is attached anodized aluminum. Its lower tip is about 2mm above the plane of the sliding surface 6.
    The lower edges of all 3 tail fins are tapered downwards.
    The rear end of the carrier 3 is dovetail-cut to achieve better tracking in steep and soft snow.
    On the ski 1 an exemplary safety binding 2,4 is mounted.
    According to the embodiment shown in Figs. 2 and 2b, a conventional alpine ski 1, e.g. the so-called "Fun Carver" shortened to the length of about 1 m, i. cut off at the rear end, creating a new ski end II.
    At this break point 11, a structure 3 is connected with the same cross section, which extends obliquely up to its rear end. The structure serves as a support for the curved tail fins 7. The sliding surface of the ski 6 must continue seamlessly and without any crack as the underside of the carrier 3.
    The side cheeks 5 of the carrier in its rear portion must be cut out arcuately and also beveled so that they can serve as bearing surfaces for the curved side fins 7.
    The fins 7 themselves are cut out of 3 mm thick aluminum plate as shown in FIG. 2b and gently bent as shown in FIG. 2 until their lower edges 10 form a circular segment with the radius of curvature between 1.5 and 3 m. Then the fins 7 are fixed by means of about 6 screws on the side cheeks 5 of the carrier 3, symmetrical to the ski axis. The lower fin edge 10 may not be below the level of the ski tread 6.
    The lower edges 10 of both curved tail fins are tapered downwards. The rear end of the carrier 3 is dovetail cut to achieve better tracking in steep and soft snow.
    On the ski 1 an exemplary safety binding 2,4 is mounted.
    权利要求:
    Claims (5)
    [1]
    1. alpine skiing with a at the rear end portion of the ski (9) attached means for influencing the sliding behavior of the ski, characterized in that the device comprises a with respect to the ski body (1) non-adjustable support (3), opposite to the running direction in acute angle to the top of the ski body (8) extends upwards and said support (3) has in its rear portion two in plan view arcuately cut side cheeks (5) on which down to the snow ground extending, in this depressible, undeformable and invisible fins (7) are arranged, wherein the lower edge of the fin (10) copies the curved course of the respective side cheek (5) and above the plane of the sliding surface of the ski (6) at a small distance therefrom and the said fins (7 ) by the edge of the ski when driving through a curve or by lifting the ski at the shovelseitigem end in the Active position can be brought.
    [2]
    2. alpine ski according to claim 1, characterized in that the rearwardly rising support (3) on the upper side (8) of the ski body in the rear end portion (9) is fixed. (Fig. 1b).
    [3]
    3. alpine ski according to claim 1, characterized in that the rearwardly rising support (3) is an extension of the rear end portion of the ski (9), wherein the underside of said carrier connects to the sliding surface of the ski (6) without a jump. (Fig. 2b).
    [4]
    4. alpine ski according to claim 2 or 3, characterized in that the fins (7) of both side cheeks (5) reflect in the plane of symmetry of the ski, wherein the fins lying opposite run diagonally down to the bottom of the snow.
    [5]
    5. alpine ski according to claim 2 or 3, characterized in that from the ascending rear part of the support (3) lying in the plane of symmetry of the ski fin (12) protrudes down to the snow ground down, which has the shape of a non-curved plate and above the plane of the sliding surface of the ski (6) is arranged. (Fig. 1,1b, ld).
    类似技术:
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    同族专利:
    公开号 | 公开日
    AT516428B1|2016-07-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    AT503250B1|2006-03-14|2008-07-15|Tomas Podesva|ALPINE SKIING|
    AT12814U1|2010-02-10|2012-12-15|Peterka Dusan|SKI|
    AT12279U1|2010-06-30|2012-03-15|Tomas Podesva|ALPINSKI WITH NECKED SLIDING SURFACE AND TAILGATE FOR DIRECTION CONTROL|EP3117880A1|2015-07-16|2017-01-18|Tomas Podesva|Alpine ski with a fin unit for carving and free riding|
    AT518134A1|2015-12-18|2017-07-15|Podesva Tomas|Alpine ski with a tail for carving|
    AT517527A3|2015-07-16|2017-12-15|Podesva Tomas|Alpine skiing with a tail for carving and freeriding|
    AT518726A8|2016-06-13|2018-12-15|Podesva Tomas|Alpine ski with a tail for the steering|
    AT523989A1|2020-06-15|2022-01-15|Podesva Tomas|Alpine skis for descents with a permanently lifted ski tip|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA782/2014A|AT516428B1|2014-10-23|2014-10-23|Alpine skis with curved tail fins for directional control|ATA782/2014A| AT516428B1|2014-10-23|2014-10-23|Alpine skis with curved tail fins for directional control|
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