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EP 2 396 093 B1 |
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EUROPEAN PATENT SPECIFICATION |
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Mention of the grant of the patent: |
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10.12.2014 Bulletin 2014/50 |
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Date of filing: 12.02.2010 |
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International Patent Classification (IPC):
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International application number: |
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PCT/NO2010/000053 |
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International publication number: |
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WO 2010/093257 (19.08.2010 Gazette 2010/33) |
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DEVICE FOR GRINDING OF SKI SOLES
VORRICHTUNG ZUM SCHLEIFEN VON SKIERN
DISPOSITIF POUR RECTIFIER DES SEMELLES DE SKI
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Designated Contracting States: |
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AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO
PL PT RO SE SI SK SM TR |
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Priority: |
13.02.2009 NO 20090705
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Date of publication of application: |
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21.12.2011 Bulletin 2011/51 |
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Proprietor: Iversbakken, Svein |
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2850 Lena (NO) |
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Inventor: |
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- Iversbakken, Svein
2850 Lena (NO)
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Representative: Coward, Bjarne G. et al |
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Protector IP Consultants AS
Oscarsgate 20 0352 Oslo 0352 Oslo (NO) |
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References cited: :
EP-A1- 1 685 880 US-A- 4 869 024 US-A- 5 597 344
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FR-A- 1 594 036 US-A- 4 881 347 US-A1- 4 679 356
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- 'Wax Future' MONTANA INTERNATIONAL, [Online] 2009, XP008166237 Retrieved from the
Internet: <URL:http://montana-international.cms1.ch/P rodukte/Machines/Handmaschinen/WaxFuture/ta
bid/1180/Default.aspx>
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Note: Within nine months from the publication of the mention of the grant of the European
patent, any person may give notice to the European Patent Office of opposition to
the European patent
granted. Notice of opposition shall be filed in a written reasoned statement. It shall
not be deemed to
have been filed until the opposition fee has been paid. (Art. 99(1) European Patent
Convention).
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[0001] The present invention relates to a device for grinding of the soles of skis according
to the introduction of claim 1.
[0002] Several different devices for grinding of patterns in ski soles are previously known.
Examples of such devices are, for example, Wintersteiger Sigma RS350 from the company
Wintersteiger AG in Austria, Reichmann Profi B350 from the company Reichmann Skiservice,
Germany and Montana Crystal from the firm Montana Sport International AG, Switzerland.
[0003] Common to all these known devices is that a grinding stone is used for grinding a
pattern into the sole of a ski, and that the ski moves gradually into the grinding
apparatus during the grinding process.
[0005] A waxing machine for skis from
www.montana-international.com is known, where the ski is at rest while the waxing machine moves relative to the
ski.
[0006] A disadvantage with these known grinding devices, is that the grinding stone which
is used, will gradually be worn down, which means that it is difficult to achieve
reproducible results. Even if one sets up the stone again (grind it up again), the
surface will not be the same as the first time, so that the grinding of the ski will
be different than before. Thus you will not be able to repeat a successful grinding
and chance determines whether the grinding will be only useful, or whether it will
be very good.
[0007] Another disadvantage with this is that peripheral speed of the grinding stone will
change as the grindstone wears down, because the radius will gradually be reduced.
Another disadvantage with the known devices is that the ski is moving in the grinding
apparatus during the grinding process. This will inevitably result in the ski moving
sideways to a certain degree, so that the grinding is not sufficiently accurate. The
sidewise movement will vary every time the ski is led through the grinding machine.
[0008] Document
FR1594036 discloses a device according to the preamble of claim 1.
[0009] The present invention intends to provide a device of the initially mentioned type,
where the above mentioned disadvantages are not present, or are at least substantially
reduced.
[0010] Tests have shown that skis ground with a device in accordance with the invention,
provide better results as well as more reproducible results than the grinding performed
with the previously known grinding machines.
[0011] This is achieved with a device for grinding the soles of the ski, said device incorporates
a grinding unit, a device for holding/clamping the ski and a foundation for support
of the grinding device, wherein the grinding unit encompasses a grinding wheel made
from a metallic material, and that the grinding unit and the device that holds/clamps
the ski, in the longitudinal direction of the ski, is set up to make a relative movement,
and that the grinding wheel rotates with a peripheral speed which is different from
the speed of the relative movement.
[0012] The relative movement is produced either in that the grinding unit moves and the
ski is held stationary or in that the grinding unit is held stationary and the ski
moves.
[0013] The grinding unit includes a sensor and a regulating appliance to regulate the force
of the grinding wheel against the sole of the ski.
[0014] The grinding unit preferably includes a sensor and a regulating appliance for regulating
the force of the grinding wheel against the sole of the ski.
[0015] The foundation is fitted with rails or the like in the longitudinal direction of
the ski and the grinding unit is fitted with complementary shaped wheels or engagement
bodies to cooperate with the rails.
[0016] Furthermore, the device can be fitted with a drive appliance, for example, in the
form of a toothed rack, a screw rod or a chain, linked to a motor, so that the grinding
unit can be moved in the longitudinal direction of the ski.
[0017] The invention will be explained in more detail in the following with the help of
an embodiment example with reference to the enclosed drawings, in which
Fig. 1 shows a perspective sketch of an embodiment of a grinding machine according
to the present invention.
Fig. 2 shows the grinding machine in fig. 1 seen from above,
Fig. 3 shows a detail of the grinding machine according to figs. 1 and 2, Figure 4
shows a detail of the grinding device,
Fig 5 shows the grinding device seen from the side, with the covers removed.
[0018] Figure 1 shows an apparatus 1 for the grinding of the soles of skis in accordance
with the present invention. The grinding machine 1 comprises a holding and clamping
appliance 2 for the ski 3 that is to be ground, a base 4 and a movable grinding unit
5. As shown in fig. 2 the grinding unit (the grinding head) 5 is mounted on rails
6 so that it can move horizontally. The grinding unit 5 is linked to a motor 8 via
a drive appliance 7, for example, a toothed rack, a screw rod or a chain, so that
the grinding unit 5 can move horizontally. The ski 3 is secured in the holding and
clamping appliance 2 so that it can be adjusted with the help of a number of adjustable
rollers 9 fitted onto the appliance 2. This is shown in fig. 3 in more detail.
[0019] The grinding device 5 is shown in more detail in fig. 4, where a part of the covers
in fig. 1 is removed. The grinding unit 5 comprises a rotary grinding wheel 10 with
associated drive appliance (not shown). Furthermore, the drive appliance is shaped
so that the grinding wheel can be adjusted vertically.
[0020] Contrary to the previously known solutions described above, the grinding wheel 10
is made of metal. The purpose of this is to reduce the wear on the grinding wheel
10 to a minimum so that reproducible results can be obtained. Furthermore, the drive
appliance of the grinding wheel 10 is set up so that it regulates the pressure of
the grinding wheel against the base of ski 3 all the time. In this way, it is possible
to achieve a uniform grinding across the whole length of the ski 3.
[0021] The grinding wheel can be fitted with different types of grooves in the wheel surface,
for example, a helical groove that extends one or more times around the grinding wheel
from the one side of the wheel to the other, diagonal grooves that stretch across
from one edge of the grinding wheel to the other or a combination of different grooves.
These grooves can, for example, be milled or machined into the grinding wheel and
it will be possible to vary them to provide a desired grinding result. Since the grinding
wheel is made of metal, the grinding wheel will not wear significantly as a result
of the use against the relatively soft ski soles and the grinding result will be repeatable
even over a long time.
[0022] The grinding head can be equipped with a pressure sensor which ensures that the grinding
wheel is pressed against the ski sole at a predetermined constant pressure.
1. Device (1) for grinding the soles of skis (3), said device comprising a grinding unit
(5), an appliance (2) to hold/clamp the ski and a foundation (4) for the support of
the grinding device (1), the grinding unit (5) comprising a grinding wheel (10), the
grinding unit (5) and the appliance (2) that holds/clamps the ski (3) in the longitudinal
direction of the ski (3), being set up to perform a relative movement, the grinding
wheel (10) rotating with a peripheral speed which is different from the speed of the
relative movement characterised in that the grinding unit (5) comprises a grinding wheel (10) made from a metallic material.
2. Device (1) according to claim 1, characterised i n that the relative movement is brought about in that the grinding unit (5) moves
and that the ski is held stationary.
3. Device according to claim 1, characterised in that the relative movement is brought about in that the grinding unit (5) is held stationary and that the ski (3) moves.
4. Device (1) according to any of the claims 1 to 3, characterised i n that the grinding unit (5) includes a sensor and a regulating appliance for regulating
of the force of the grinding wheel (10) against the sole of the ski (3).
5. Device according to any of the preceding claims,
characterised i n that the foundation (4) is fitted with rails or the like (6) in the longitudinal
direction of the ski (3) and that the grinding unit (5) is provided with complementary
shaped wheels or engagement bodies for cooperation with the rails (6).
6. Device according to any of the preceding claims, characterised i n that the device (1) is fitted with a drive appliance (7), for example, in the
form of a toothed rack, a screw rod or a chain, linked to a motor (8) so that the
grinding unit (5) can move in the longitudinal direction of the ski (3).
1. Vorrichtung (1) zum Schleifen der Laufflächen von Ski (3), wobei die Vorrichtung eine
Schleifeinheit (5), eine Einrichtung (2) zum Halten/Spannen des Skis und einen Unterbau
(4) zum Stützen der Schleifvorrichtung (1) umfasst, wobei die Schleifeinheit (5) ein
Schleifrad (10) umfasst, wobei die Schleifeinheit (5) und die Einrichtung (2), welche
den Ski (3) in der Längsrichtung des Skis (3) hält/klemmt, aufgebaut sind, um eine
Relativbewegung durchzuführen, wobei das Schleifrad (10) mit einer Umfangsgeschwindigkeit
rotiert, welche sich von der Geschwindigkeit der Relativbewegung unterscheidet,
dadurch gekennzeichnet, dass die Schleifeinheit (5) ein aus metallischem Material hergestelltes Schleifrad (10)
umfasst.
2. Vorrichtung (1) nach Anspruch 1, dadurch gekennzeichnet, dass die Relativbewegung dadurch bewirkt wird, dass sich die Schleifeinheit (5) bewegt,
und dass der Ski stationär gehalten wird.
3. Vorrichtung (1) nach Anspruch 1, dadurch gekennzeichnet, dass die Relativbewegung dadurch bewirkt wird, dass die Schleifeinheit (5) stationär gehalten
wird, und dass sich der Ski (3) bewegt.
4. Vorrichtung (1) nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Schleifeinheit (5) einen Sensor und eine Reguliereinrichtung zum Regulieren der
Kraft des Schleifrads (10) auf die Lauffläche des Skis (3) enthält.
5. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Unterbau (4) in der Längsrichtung des Skis (3) mit Schienen oder dgl. (6) ausgerüstet
ist, und dass die Schleifeinheit (5) mit komplementär geformten Rädern oder Eingriffskörpern
zum Zusammenwirken mit den Schienen (6) versehen ist.
6. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Vorrichtung (1) mit einer Antriebseinrichtung (7), zum Beispiel in Form einer
Zahnstange, einer Gewindestange oder einer Kette, ausgerüstet ist, welche so mit einem
Motor (8) verbunden ist, dass sich die Schleifeinheit (5) in der Längsrichtung des
Skis (3) bewegen kann.
1. Dispositif (1) pour rectifier les semelles de skis (3), ledit dispositif comprenant
une unité de rectification (5), un appareil (2) pour maintenir/serrer le ski et une
fondation (4) pour le support du dispositif de rectification (1), l'unité de rectification
(5) comprenant une meule (10), l'unité de rectification (5) et l'appareil (2) qui
maintient/serre le ski (3) dans la direction longitudinale du ski (3) étant conçus
de manière à exécuter un déplacement relatif, la meule (10) tournant avec une vitesse
périphérique qui est différente de la vitesse du déplacement relatif, caractérisé en ce que l'unité de rectifcation (5) comprend une meule (10) qui est constituée d'un matériau
métallique.
2. Dispositif (1) selon la revendication 1, caractérisé en ce que le déplacement relatif est opéré de telle sorte que l'unité de rectification (5)
se déplace et que le ski soit maintenu stationnaire.
3. Dispositif selon la revendication 1, caractérisé en ce que le déplacement relatif est opéré de telle sorte que l'unité de rectification (5)
soit maintenue stationnaire et que le ski (3) se déplace.
4. Dispositif (1) selon l'une quelconque des revendications 1 à 3, caractérisé en ce que l'unité de rectification (5) comprend un capteur et un appareil de régulation pour
réguler la force de la meule (10) contre la semelle du ski (3).
5. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que la fondation (4) est équipée de rails ou analogues (6) dans la direction longitudinale
du ski (3) et en ce que l'unité de rectification (5) est équipée de roues ou de corps d'engagement de forme
complémentaire destinés à coopérer avec les rails (6).
6. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif (1) est pourvu d'un appareil d'entraînement (7), par exemple, sous
la forme d'une crémaillère, une tige filetée ou une chaîne, relié à un moteur (8)
de telle sorte que l'unité de rectification (5) puisse se déplacer dans la direction
longitudinale du ski (3).
REFERENCES CITED IN THE DESCRIPTION
This list of references cited by the applicant is for the reader's convenience only.
It does not form part of the European patent document. Even though great care has
been taken in compiling the references, errors or omissions cannot be excluded and
the EPO disclaims all liability in this regard.
Patent documents cited in the description