• 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:
    Auxiliary drive for cross-country skis with an electric drive that is positively connected to the cross-country ski 1, the drive 3, 4 on the movable binding plate 11 generating vibration-like movements 8 in and against the direction of travel and the drive 3 as an electromagnet or linear motor or as an electric motor 4, which via a cam 5, the binding plate 11 moves back and forth, is formed, or consists of piezo-quartz actuators 3 translated into their stroke path or of a hydraulic or pneumatic cylinder 3 with a pump 16 in front.
    公开号:CH716537A2
    申请号:CH01306/19
    申请日:2019-10-14
    公开日:2021-02-26
    发明作者:Nagel Edmund
    申请人:Markus Sepp Bank Frick Wsa；
    IPC主号:
    专利说明:

    description
    This application describes a battery-powered drive for explicitly created for cross-country skis with backstops on the treads. Drive-assisting touring skis are known from patents AT 514478 and AT 515766, but only reached a laboratory stage and were completely unsuitable for practical use. Compared to these laboratory tests, this application describes a propulsion for cross-country skis, which differs diametrically in detail in all parameters of the said test arrangement and above all provides the technical progress prescribed by the patent law and is thus also realizable in practice.
    For example, a stroke of the auxiliary drive is no longer carried out over great lengths of the ski, but only generated more vibration-like short strokes with high frequency. The drive is also generated by a large number of possible drive sources, all of which can produce the extremely fast change of direction of the thrust effect on the binding plate according to the invention and do not have to resort to, for example, unsuitable screw jacks with very long stroke lengths.
    In addition, this innovation has overall overall lengths that only cover the binding area of the ski and do not require any attachments in the sensitive swinging front and rear ski sections. If holes had to be drilled in these relatively thin areas for fastenings, the ski would inevitably break starting from the borehole.
    The drive for the only vibration-like movement of the binding plate can be provided by a variety of different motor sources. This can be achieved, for example, by a linearly moving plunger magnet. This - or a linear motor - is particularly simple and insensitive. In the case of the electromagnet, only its relatively short stroke length with high stroke frequencies has to be taken into account. The same applies roughly to the electric linear motor.
    The hydraulic cylinder operated by a hydraulic pump is particularly reliable and easy to control. It has the advantage that any stroke frequency and stroke length can be displayed using simple valves. The same applies to a pneumatic drive system. In the case of pneumatic systems, the power loss due to the development of heat during air compression must be taken into account. A flushing pressure line is recommended for hydraulic systems in order to be able to flush out any air that gets into the line system when it is unplugged and plugged in. For all pumps, it is advisable to place them next to the battery in the container for the batteries and to only lead the said attachable and detachable pressure lines to the ski.
    When using an electric motor as a drive for the back and forth movement of the binding plate, this can work in the same direction of rotation on the one hand in continuous, uninterrupted running. So it never has to change its direction of rotation between the work cycle and the reset cycle, which is disadvantageous. In addition, it never has to start or brake again during a sequence of lifting cycles. Due to the corresponding shape of the cam, the binding plate is moved in its stroke speed in a uniform stroke of the work cycle.
    For all drive systems applies uniformly that at the end in each case towards the binding plate a rapidly oscillating connecting rod must be present, with which the binding plate is positively coupled. Such a connecting rod is set in motion by means of a cam disk, which drives an electric motor that constantly rotates in the same direction of rotation. As a clear distinction to the descriptions in AT 514478 and AT 515766, the direction of rotation of the motor does not have to be changed at the end of each stroke direction, but never.
    In addition, the motor does not operate a long-stroke spindle with stroke lengths over half the ski, but a cam generates only short, vibration-like strokes whose stroke speed, due to the shape of the curve radii on the cam, generates a uniform movement speed in the work cycle for the binding plate.
    Such a cam rotates on the axis of the electric motor and has a running groove for the support roller, which in turn, attached to the foremost end of the binding plate and move in this running groove at a constant working stroke speed in or against the direction of travel linearly to the ski leaves.
    The decisive difference to AT 514478 and AT 515766 is that the objective application is not only a theoretical paper construction, but practically impracticable fictitious construction, but also provides the technical progress required in the patent law, which in the case of AT 514478 and AT 515766 demonstrably but never could be provided, since the invented theories were and are never really applicable in such a way.
    The finding is also proven by the fact that the patent holder never got beyond laboratory tests. It turned out that the long guide rails had to be screwed to the swinging ends of the ski, which made the ski inaccessible due to this forced stiffening. In addition, these long rails required holes to be made in the thin, swinging ends of the ski to attach the rails, which in practice would break the ski there. A drilling at this point is a total write-off of the said ski. If the rails had simply been shortened, the ski would no longer have been able to provide any significant propulsion, since it was assumed in this application at the time that the drive had to be lifted for each step of the walker.
    Now, thanks to the present invention, it is generally much easier, more robust and, above all, more effective z. B. act an electromagnet on a binding plate. It will no longer be this binding plate and skier
    Centimeter wide - or even, as described in the patent applications AT 514478 and AT 515766, pushed back and forth over half the length of the ski, but the binding plate is much more only moved back and forth like a millimeter. Such a short movement can also be realized with the linear motors or hydraulic cylinders or pneumatic cylinders, the hydraulic systems, which can be easily controlled by means of a valve, represent an immense advantage.
    As I said, only the e-magnet or linear motor can be used without any drawbacks. An electric motor always has the disadvantage that it mechanically makes the stroke distance dependent on the angle of its rotation - i.e. on the speed. If an electromagnet is used instead, it is not dependent on the speed of a motor rotor, but the lifting body immediately follows or approaches the point of resistance with an adequate force. This can use its thrust immediately. In addition, the lift is always carried out in line with the overall walking speed of the skier. The plunger can neither lead nor lag behind the walking speed. The electromagnetic drive does not work disadvantageously as a function of the speed, but only at a purely performance and speed level.
    Because the electromagnet reacts with high efficiency without a time delay, the stroke can be very short - and as short as the non-return function of the cross-country ski or the climbing skin allows. This is actually less than a stroke length of one centimeter. The quality of the climbing skin or the cross-country backstop of the cross-country ski is of primary importance.
    Instead of synchronously only one additional step of motor support per step of the skier, the subject E-magnet vibrates at up to 50 Hz per second - around 50 times faster than the synchronous movement in patent applications AT 514478 and AT 515766 with around one stroke / second. The strokes are of course ultra-short and the backstop is required. Therefore, the skins should be qualitatively close to angora hair.
    In the present application is described in a diametrical differentiation to the previous applications from AT 514478 and AT 515766 in the description and the graphic representations that the additional movement of the skier relative to the ski can not only be very short, but only as high-frequency Vibration occurs or is required. The total mechanical electrical parts expenditure and the mechanical parts thus achieve an absolute minimum number.
    The high-frequency lifting movement, which is generated by all drive forms described here, are digitally planted and superimposed on the normal step span of the skier. Mixing and superimposing two frequencies in this way is often used in radio wave transmission. A conclusion about the effect of electromagnetic waves in the area of classical mechanics for cross-country skis is therefore permissible and, according to the invention, intentionally intentional.
    From the newly created and rapidly growing e-bike market it is known that in outdoor sports, with explosive growth rates, vehicles for individuals are used, which provide electric motor support for conventional bicycles without noise or exhaust emissions. The classic e-bike only requires the rider to pedal rather symbolically than the real sporting activity of cycling. As a result, the e-bike opened up the possibility of using the bike for longer tours, especially for older cyclists. To date, cross-country skiers have only had sporting fitness to move around quickly on the cross-country ski trail. There was no useful support like with the e-bike.
    The already known electromotive auxiliary drives were structurally not fully developed and caused structural and static problems on the ski even in the experimental stage due to the extremely long lifting movements of the auxiliary drive. For cross-country skis, this technology never even got into the experimental stage.
    Legend:
    [0020]
    1 = cross-country skiing
    2 = cross-country skier
    3 = drive as an e-magnet, linear motor, lifting cylinder or piezo quart
    4 = drive as electric motor with cam
    5 = cam
    6 = groove in the cam
    7 = support roller
    8 = vibration-like movement in and against the direction of travel
    9 = working stroke of the drive
    10 = return stroke of the drive
    11 = binding plate
    12 = direction of travel
    13 = battery
    14 = control electronics
    15 = load sensor
    16 = pump for pneum. or hydr. cylinder
    17 = controller for power control of both skis
    18 = container for battery, regulator and receiver
    19 = backstop on the ski / climbing skin
    20 = connection cable or line from the battery or pump to the ski
    21 = plug connection / electrical, pneumatic or hydraulic
    22 = ski boot
    23 = LED display
    24 = PTFE sliding layer
    25 = stride length of the cross-country skier
    26 = Active draw length of the drive
    27 = overrun stroke after 26 during the reset phase 10
    28 = total length from cross-country skiing step and drive support
    Figure explanation:
    1 shows a section through a cross-country ski (1) and the various drive devices (3, 4), as well as the binding plate (11) and the control electronics (14) with a side view of the ski boot (22) and the battery container ( 18) and the cross-country skier's leg (2).
    It shows the Fig. 2 above the conventional cross-country skier (2) without supporting drives (3, 4). The sequence of movements during a step becomes visible at the bottom, the step (25) of the cross-country skier (2) being lengthened somewhat with each stroke (26) of the binding flap (11) and these movements (26 +27) are superimposed as a total step span (28).
    3 shows a plan view of the cam disk (5) with its running groove (6) and the support roller (7) moved therein.
    1 shows a section along a cross-country ski (1) showing that the cross-country skier (2) drives the binding plate (11) in a vibration-like manner through the drives (3, 4) connected to the cross-country ski (1) in a form-fitting manner Movement (8) shifts in and against the direction of travel (12) and the drive (4) is fed by a remote battery (13) and is controlled by the control electronics (14).
    The drives (3, 4) generating a vibration-like movement (8) can be designed in a large number of variants. For example, the electromagnet (3) can be used, which acts directly on the binding plate (11) or acts remotely from the cross-country ski (1) by means of a pressure line (20) on a column of liquid, which in turn drives the ultra-light hydraulic cylinder (4). The capillary connecting line (20) from the pump (16) to the hydraulic cylinder (3) is preferably designed as a double flushing line so that any air that may penetrate when the line (20) is repositioned is immediately vented from the system.
    The linear motor (3) fulfills the same purposes as the electromagnet (3), but it can be used more effectively, with less weight and less space. If a piezo quartz (3) is used instead of the electromagnetic actuators, it is highly efficient in a small space, but it has to be translated mechanically in the stroke (9) because of its low voltage-dependent changes in length.
    Those purposes which are to be fulfilled hydraulically can generally also be solved with a pneumatic cylinder (3) and the compressor (16) removed from the ski (1). The disadvantage of the pneumatic solution is that the compressibility of the compressed air results in heat losses and the compressor can be heard.
    The cylinder (3) - whether hydraulic or pneumatic - can perform the reset (10) after a working stroke (9) in any case by a mechanical spring. In the work cycle, the cylinder (3) not only pushes the binding plate (11) forward in the direction of travel (12), but also pretensions the return spring.
    With an electric motor (4) rotating in a single direction of rotation, which acts via a cam disc (5) on such a binding plate (11) oscillating in a vibration-like manner, the binding plate (11) can also be set in the required stroke movement (8). For this purpose - as already mentioned - a vibration-like movement (8) is to be generated, which thus does not push any component beyond the binding seat of the ski (1) or even have to attach fastenings there.
    Both skis (1) are basically operated and controlled independently of one another, only the regulation of their power of both drives (3, 4) are controlled by the common controller (17) on the battery container (18). Obviously, an LED display (23) is installed at a suitable point, which provides information about the charge status of the batteries (13). The load sensor (15) on the ski (1) sends the control signals for every drive switch-on and switch-off of the respective drive (3, 4) to the control electronics (14), which is usually located directly next to the drive (3), or if a pump (16) is operated, then sits next to the pump (16).
    The backstops (19) on the running surfaces of the cross-country skis (1) are of particular importance. So that the high-frequency recoils of the ski (1) are reliably blocked in good time, these backstops (19) must consist of climbing skins. These skins (19) must have a very good quality, after which they reach that of mohair.
    权利要求:
    Claims (9)
    [1]
    1. Auxiliary drive for cross-country skis with an electric drive, which is positively connected to the cross-country ski (2), characterized in that the drive (3, 4) on the movable binding plate (11) vibration-like movements (8) in and against the direction of travel (12) and the drive (3) is designed as an electromagnet or linear motor or as an electric motor (4), which moves the binding plate (11) back and forth via a cam (5), or of piezo quartz actuators translated into their stroke path (9) (3) or one hydraulic or one pneumatic cylinder (3) with a pump (16) in front.
    [2]
    2. Auxiliary drive for cross-country skis with electric drive, according to claim 1, characterized in that when an electric motor is used as the drive (4) it works in the same direction of rotation on the one hand in continuous, uninterrupted running and the corresponding shape of the cam disc (5) has an its speed generated uniform stroke of the work cycle (9) of the binding plate (11).
    [3]
    3. Auxiliary drive for cross-country skis with electric drive, according to claims 1 and 2, characterized in that for the application of this cross-country ski (1) according to the invention, stroke lengths (8) of the drives (3, 4) of less than one centimeter, at correspondingly high frequencies (8) of up to one hundred Hertz, are to be used effectively.
    [4]
    4. auxiliary drive for cross-country skis with electric drive, according to claims 1 to 3, characterized in that the corresponding pump (16) for the pneumatic or hydraulic cylinder (3) is placed near the battery (13) buckled on the body of the cross-country skier (2) and from the pump (16) to the cylinder (3) in a plug-in connection (21) a pressure line or double circulation line (20) leads.
    [5]
    5. auxiliary drive for cross-country skis with electric drive, according to claims 1 to 4, characterized in that the backstop (19) under the tread of the cross-country ski (1) consists of a skin (19) similar in quality to mohair, so that it is already to be able to adhere in good time in a form-fitting manner in fine molecular roughness of the pre-groomed cross-country ski trail and even with the high-frequency load changes (8) according to the invention.
    [6]
    6. auxiliary drive for cross-country skis with electric drive, according to claims 1 to 5, characterized in that both cross-country skis (1) are operated independently and the regulation of the power level from a single control point (17) and the on and off of the respective drive (3, 4) takes place via a load sensor (15) on the respective ski (1).
    [7]
    7. auxiliary drive for cross-country skis with electric drive, according to claim 6, characterized in that the respective power level of the drive (3, 4) and the battery charge status (7) is optically indicated by, for example, LEDs at a suitable point.
    [8]
    8. auxiliary drive for cross-country skis with electric drive, according to claims 1 to 7, characterized in that the by the drive (3, 4) displaceable binding plate (11) is preferably made of PTFE.
    [9]
    9. auxiliary drive for cross-country skis with electric drive, according to claims 1 to 8, characterized in that the batteries (13) and optionally the control electronics (14) are housed in the two separate containers (18), which are preferably laterally on each one Thighs of the cross-country skier (2) are buckled.
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    同族专利:
    公开号 | 公开日
    CH716531A2|2021-02-26|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CH01073/19A|CH716531A2|2019-08-26|2019-08-26|Electrically powered touring or cross-country skis.|
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