EP1948334B1 - Hot waxing ski coatings with ski wax - Google Patents

Abstract

Method of hot waxing ski coatings (6) with ski wax, wherein the ski coating (6) located on a ski (4) is heated, together therewith, to an object temperature which is elevated in relation to the ambient temperature, and the ski wax is applied to the coating, and wherein the ski (6) as a whole is kept at the elevated object temperature, which is greater than or equal to 40°C, for a period of time of more than 15 minutes prior to and/or following the operation of applying the ski wax.

Description

The invention relates to a method for hot waxing of Schibelwachs with Schiwachs, which is located on a ski Schibelag heated together with this to a relative to the ambient temperature increased object temperature and the ski wax is applied to the pad, wherein prior to application of the wax in a pretreatment step of the Schi with the sheeting day as a whole kept at a constant object temperature greater than or equal to 40 ° C for a predeterminable pretreatment period of more than 15 minutes, and after the pretreatment period has ended the ski wax is heated Schischag is applied, wherein in an aftertreatment step, the ski is held with the already waxed Schibelag during an aftertreatment period at the elevated object temperature.

The Schibelag forms the running surface of a ski and in modern skis consists mainly of polyethylene, since this material has a very low coefficient of friction for different types of snow. Many of the polyethylene tread saws include a carbon black portion and are referred to as graphite linings. Polyethylene has on its surface a multitude of fine pores which, when heated on the Schibelag, expand with a wax iron and fill with the liquid Schiwachs, which increases the durability of the Schiwachses on the Schibelag.

Ski wax is usually applied hot to improve the running properties of the ski and after cooling, the excess wax is peeled off with a scraper blade and the Schibelag brushed, if necessary, it is provided with a structure. For professional applications, this is done in several steps in order to achieve the best possible wax seal of the surface of the pavement.

When applying the ski wax on the Schibelag the difficulty is to set the correct temperature of the wax to allow on the one hand the deepest possible penetration of the wax and on the other hand to prevent overheating of the Schibelages, otherwise threaten irreversible damage in the surface of the covering, soft impairment the driving characteristics bring with it.

Hitherto used methods for hot waxing are very time consuming and can only be carried out in laborious handwork.

In the internet article " Growing at Neuski? "(August 31, 2005 ) mentions a Toko-Thermobag for the penetration of ski wax into a Schibelag at elevated temperatures for several skis, which has a ventilation system. It is stated that the typical residence time of the skis in the thermobag is between four and six hours.

Other Internet sites that deal with the Toko Thermobeg are " Waxen with Thermo Bag "(January 15, 2003 ), " Toko Thermo Bag "(November 5, 2002 The specified retention time of the skis in the Thermo Bag is six to eight hours at a temperature of 62 ° C.

In the internet article " Temperbox - The new wax technology "(September 6, 2006 ) is a uniform heating of the Schibelages described at an atmosphere temperature of 75 ° C and a contact time of 70 hours.

Finally, in the DE 38 33 103 A1 discloses a device for automatic growth of skis, in which the skis are placed in a box-shaped device on a support means and a device for applying wax is provided. Slip wax is applied and the running surface is heated with a heat source, eg a hot air blower, a heating flame or a radiant heater. The heat sources mentioned are directed to a conventional local, short-term heating of the school day.

The object of the invention is therefore to provide a method of the type mentioned above, with a simplification of waxing and a significant increase in the amount of wax introduced and Wachseinbringens can be achieved in the Schibelag.

Another object of the invention is to provide an aforementioned method, with which a permanent and stable wax layer can be produced with gentle treatment of the Schibelages.

According to the invention this is achieved in that during the post-treatment step, one or more cooling phases are passed through lowering the object temperature to a cooling temperature and then returning to the increased object temperature.

This brief cooling from the elevated temperature of the object causes a temporary thickening or viscosity increase, which causes an improvement in the adhesion of the wax within the pores.

In this case, the cooling temperature, which is set during the short-term cooling phase, be between 30 ° C and 70 ° C, preferably 45 ° C.

In the course of experiments it was found that by holding the ski at the elevated object temperature to open the pores of the Schibelages and thereby wax can penetrate to a much greater extent than usual in the surface of the Schibelages, resulting in a stable and permanent wax layer on the floor. Improved driving and sliding properties are achievable in this way.

It is held before the application of the wax layer, the increased object temperature and this happens after the waxing process. There is an increase in the penetration depth observed.

Due to the over conventional methods significantly increased wax absorption not only reduces the time required for hot waxing, but it can be significantly reduced the wear of the waxed pavement surface, so that regrowth is required only after much longer period of use of the ski. In other words, this means a much increased service life of the ideal sliding property of the pretreated ski. Combined with a precise coating of the surface, with the appropriate continued care of the wax, there are virtually no other "dry, white", ie porous, brittle surface areas.

The extremely high degree of waxing and saturation achievable by the method according to the invention for all common slide saws permits greatly improved sliding properties compared with conventionally waxed skis, which in the case of fast disciplines of alpine skiing involve significant improvements in running times.

It is maintained before the application of the wax in the pretreatment step, the ski with the Schibelag thereon as a whole for a predeterminable pre-treatment time constant at the elevated object temperature is greater than or equal to 40 ° C, and after the end of the pretreatment period, the Schiwachs on applied to the heated Schibelag.

According to an embodiment of the invention, in the aftertreatment step, the heating to the elevated object temperature may be performed within a predetermined heating period, which is between 30 minutes and 7 hours. Thus, within this specified time range, the heated ski is protected from damage and at the same time the temperature transition period is limited to a practicable value.

In a particularly preferred manner, a heating-up period of 60 minutes may be suitable for the purpose of the heating process.

The risk of overheating of the Schibelages by a too hot wax temperature does not occur because the ski wax can be applied to an already heated surface of the pavement.

The post-treatment period may preferably be between two and one hundred hours. An after-treatment period of seventy hours has proven to be particularly preferred since it was possible here to detect a maximum of the penetration of the wax.

The post-treatment period may be greater than the pretreatment period, preferably several hours.

Preferably, the pre-treatment step is carried out in a closed chamber, and then the ski wax is applied outside the chamber to the slide surface.

The object temperatures and pretreatment periods can vary over a wide range.

A very good Wachseindringverhalten can be achieved according to an embodiment of the invention in that the object temperature is in a range between 40 ° C and 60 ° C.

Furthermore, the pretreatment time period may preferably be in the range of 15 minutes to 60 minutes in order to obtain the largest possible opening of the plaque pores, which promotes the wax absorption.

In order to be able to profit from a further increase in the quality of the wax layer applied to the coating, after the application of the wax, the treatment step of heating the ski with the coating to the predetermined object temperature and maintaining the object temperature during the treatment predeterminable treatment period once performed or possibly repeated several times.

In a further embodiment of the invention, the increased object temperature in the post-treatment step between 50 ° C and 80 ° C, preferably 75 ° C. In the aforementioned temperature range results in a particularly high penetration depth for ski wax.

A certain influence on the result of the hot wax process according to the invention also has the speed with which the raising of the object temperature takes place.

The object of the invention is further in an apparatus for heat treating skis with Schibelägen for hot growing a Schibelages with a temperature control chamber for receiving at least one ski with Schibelag, the temperature within the temperature control chamber is constantly adjustable, and a device for forced movement is provided by heated air for maintaining constant temperature within the Temperaturregefurigs chamber, achieved in that the device for I-uft-forced movement is formed by a controllable warm air circulating system, wherein in an end region of the temperature control chamber, the heated air via an inflow opening in the Inner of the temperature control chamber is introduced, which flows through them in the longitudinal direction to be sucked and recycled at the other end of the temperature control chamber, and wherein disposed within the temperature control chamber, one or more temperature sensors are connected to a control circuit which controls the controllable warm air circulating system.

By means of the warm air control, a very precise temperature control and thus constant pore opening widths over the entire running surface can be guaranteed.

In this way, the temperature pretreatment according to the invention can be applied precisely and reproducibly.

Furthermore, the object of the invention in a device for heat treating of skis with Schibelägen for hot growing a Schibelages with a temperature control chamber for receiving at least one ski with Schibelag, the temperature within the temperature control chamber is constantly adjustable, achieved that the Temperature control chamber is installed in a workbench below the worktop of the worktable.

It is thus possible to achieve a particularly efficient and efficient workflow during hot growing.

In order to be able to simultaneously subject a plurality of skis to a temperature pretreatment, a plurality of supports for supporting skis may be provided in the temperature control chamber.

A clear and convenient for the user accommodation of the Schier can be achieved by the support brackets are provided in superimposed planes according to a development of the device according to the invention.

• Fig. 1 eine Schrägrißdarstellung einer Ausführungsform der erfindungsgemäßen Vorrichtung zur Durchführung des erfindungsgemäßen Verfahrens im leeren, geöffneten Zustand mit herausgefahrenen Schihalterungen;
• Fig. 2 eine Schrägrißdarstellung der Ausführungsform gemäß Fig. 1 im geöffneten, mit Schiern beladenen Zustand;
• Fig.3 ein Temperatur-Zeitdiagramm zur Veranschaulichung einer Vorbehandlung von Schiern gemäß einer Ausführungsform des erfindungsgemäßen Verfahrens;
• Fig.4 ein Temperatur-Zeitdiagramm zur Veranschaulichung einer Nachbehandlung von Schiern gemäß einer weiteren Ausführungsform des erfindungsgemäßen Verfahrens und
• Fig.5 ein Temperatur-Zeitdiagramm zur Veranschaulichung einer Nachbehandlung von Schiern gemäß einer weiteren Ausführungsform des erfindungsgemäßen Verfahrens.

According to a further embodiment of the invention can be provided that the temperature control chamber has a side hinged door, and that the support brackets with open swing door from the temperature control chamber are extendable.
The invention will be explained in detail with reference to the embodiment shown in the drawings. It shows

• Fig. 1 a Schrägrißdarstellung an embodiment of the inventive device for carrying out the method according to the invention in the empty, open state with retracted ski holders;
• Fig. 2 a Schräißißdarstellung the embodiment according to Fig. 1 in the open, loaded with skis condition;
• Figure 3 a temperature-time diagram illustrating a pretreatment of skis according to an embodiment of the method according to the invention;
• Figure 4 a temperature-time diagram for illustrating a post-treatment of skis according to another embodiment of the method according to the invention and
• Figure 5 a temperature-time diagram for illustrating a post-treatment of skis according to another embodiment of the method according to the invention.

Fig. 1 and 2 show a device 1 according to the invention for heat-treating of skis 4 and thereon located Schibelägen 6, which is formed by a temperature chamber 3 for receiving the same, wherein the temperature within the temperature chamber 3 is constantly adjustable.

In the temperature control chamber 3 a plurality of brackets 5 are provided for supporting skis 4. The support brackets 5 are formed in superimposed planes as a frame on which the ski 4 can rest with its top, the sheer can be flowed around unhindered by hot air.

The design of the temperature control chamber 3 can be adapted to the circumstances and is subject to the sufficient size for complete absorption of the pretreated Schier 4 no restrictions.

The following dimensions can be realized, for example: Outside Length: 240 cm, depth: 84 cm, height: 115 cm Inside Length: 216 cm, depth: 50 cm, height: 43 cm

In the embodiment shown, the temperature control chamber 3 a lateral pivot door 7, which can be swung down so that it allows lateral access to the temperature control chamber 3. The support brackets 5 are at the open pivot door 7 from the temperature control chamber 3 extendable, so that the removal of the rearwardly arranged Schier 4 no problems. In the temperature control chamber 3 according to Fig. 1 and 2 Up to 12 pairs of skis can be accommodated.

Within the temperature control chamber 3 is an in Fig. 1 and 2 controllable warm air circulating system designed to maintain temperature, which allows the setting of a constant temperature over a longer period of time.

About a control panel 10 is a free timing programming by means of a control circuit feasible. For temperature monitoring, one or more temperature sensors are arranged in the temperature control chamber 3, which are connected to the control circuit which controls the controllable hot air circulating system. In an end region of the temperature control chamber 3, heated air is introduced via an inflow opening into the interior of the temperature control chamber 3, which flows through it in the longitudinal direction to be sucked off again and recycled at the other end of the chamber 3. Thus, only a very small fluctuations underlying temperature control can be made.

The keeping constant of the temperature in the interior of the temperature control chamber 3 can, however, also be realized differently than in any other known manner.

Particularly advantageous, as in the embodiment according to Fig. 1 and 2 shown, the temperature control chamber 3 is installed in a workbench 8 below a work surface 2 of the worktable 8. Each ski to be grown can be taken out of the temperature control chamber 3 to machine it.

The method of hot waxing Schi-Wax with Schiwachs is carried out by the schi together on a ski it heated together with this to an ambient temperature raised to the object temperature and the ski wax is applied to the pad.

According to the invention, the ski 4 is kept as a whole before and / or after the application of the ski wax in each case for a period of time which is more than 15 minutes at the elevated object temperature which is greater than or equal to 40.degree.

The opening of the pores, which can thus be achieved during the heat treatment, causes deep penetration of the wax. This heat treatment can be applied either before waxing or only after waxing but also before and after.

Heat-treatment:

Prior to the application of the wax, in a pretreatment step, the ski 4 with the coating thereon as a whole is kept constantly at the object temperature which is greater than or equal to 40 ° C. for a predeterminable pretreatment time period. After the end of the pretreatment period, the ski wax is applied to the heated coating.

This is done in practice so that the pretreatment step is performed in the closed temperature control chamber 3, and the ski wax outside the temperature control chamber 3 is applied to the Schibelag 6.

The object temperature is preferably kept constant in a range between 40 ° C and 60 ° C over a period of 15 minutes to 60 minutes. In Fig. 3 a pretreatment at an object temperature Tvor = 45 ° C over a period tvor = 40 minutes is shown.

As soon as the pretreatment carried out by the process according to the invention has been carried out, the pretreated ski can be hot waxed using a wax iron or a Wachsaufrollvorrichtung, eg hot waxing with fine molecular weight base preparation ski wax BP88 od. Like.

Heat treatment with cooling phases:

In an aftertreatment step, the ski with the already waxed shim day is maintained at the elevated object temperature during an aftertreatment period, the aftertreatment time being greater than the pretreatment period, preferably several hours.

The post-treatment period may be between two and one hundred hours, preferably an extent of seventy hours.

In Figure 4 For example, a heat aftertreatment at an object temperature Tnach = 75 ° C, which is in the preferred range of 50 ° C to 90 ° C, over a post-treatment time t after = 70 hours is shown.

In the post-treatment step, the gentle heating to the increased object temperature is carried out within a predetermined heating time period ta = 60 minutes, which may be, for example, between 30 minutes and 7 hours.

Measurements have shown that when using the method according to the invention about a tripling of the penetration depth of the ski wax can be determined. Compared to a penetration depth of 0.12 mm in previous hot wax processes after ten hot waxes, a penetration depth of 0.38 mm results for the process according to the invention if the pretreatment according to the invention has lasted for about 70 hours at about 75 ° C. object temperature , Due to the large penetration depth, there is a great time savings compared to conventional waxing. The test object was coverings of the type Oculen 10 and UHM 5000.

After applying the ski wax, the after-treatment step of heating the ski with the slide film to the predetermined object temperature and holding the object temperature during the predetermined pretreatment period may be repeated one or more times to perform a plurality of wax application operations.

The post-treatment step is interrupted by intermittent cooling to promote intense contact between ski wax and pores.

As in Figure 5 is shown by way of example, during the post-treatment step, one or more, in the example concrete two Abkühlphasen by lowering the elevated object temperature Tnach on a. Cooling temperature Tab and then returning to the increased object temperature Tnach go through. The cooling temperature is in the example shown between 30 ° C and 70 ° C, specifically 45 ° C.

Claims (16)

1. A procedure for hot waxing ski running surfaces with ski wax, wherein the running surface of a ski and a ski are heated to an object temperature which is elevated in relation to the ambient temperature, and the ski wax is applied to said running surface, wherein the ski and its running surface are maintained at said elevated object temperature of 40°C or more during a pre-determinable pre-treatment period of more than 15 minutes in the course of a pre-treatment step, which is carried out before applying the wax, and said ski wax is applied to the heated ski surface after the end of said pre-treatment period, the ski and its waxed running surface being maintained at said elevated object temperature during a post-treatment period, characterised in that, in the course of the post-treatment step, one or more cooling phases, during which said object temperature is reduced to a cooling temperature, and subsequent re-heating phases, during which the temperature is again increased to said object temperature, are performed .
2. The procedure according to claim 1, characterised in that said cooling temperature ranges between 30 °C and 70 °C, and preferably is 45 °C.
3. The procedure according to claim 1 or claim 2, characterised in that said pre-treatment step is carried out in a closed chamber, and in that the ski wax is applied to the ski running surface outside the chamber.
4. The procedure according to any one of the claims 1, 2 and 3, characterised in that said object temperature ranges between 40 °C and 60 °C.
5. The procedure according to any one of the preceding claims, characterised in that said pre-treatment period is a period of 15 to 60 minutes.
6. The procedure according to any one of the preceding claims, characterised in that said post-treatment period is longer than said pre-treatment period, and preferably is a period of several hours.
7. The procedure according to any one of the preceding claims, characterised in that said post-treatment period is a period of between two and a hundred hours.
8. The procedure according to claim 7, characterised in that said post-treatment period is a period of seventy hours.
9. The procedure according to any one of the preceding claims, characterised in that, during the post-treatment step, said elevated object temperature ranges between 50 °C and 80 °C, and preferably is 75 °C.
10. The procedure according to any one of the preceding claims, characterised in that the heating to an elevated object temperature during the post-treatment step is carried out within a predetermined heating period, which is a period of between 30 minutes and 7 hours.
11. The procedure according to claim 10, characterised in that said heating period is a period of 60 minutes.
12. A device for carrying out a heat treatment of skis having ski surfaces for hot waxing a ski running surface (6), said device comprising a temperature control chamber (3) for containing at least one ski (4) with a ski running surface (6), wherein the temperature within said temperature control chamber (3) is adjustable to a constant value and a device for forcing heated air to circulate inside the said temperature control chamber (3) for keeping its temperature constant is provided, characterised in that said device for forcing the air to circulate is formed by a controllable hot-air circulation system, wherein the heated air, which streams through said chamber (3) in a lengthwise direction, is introduced into the inner space of said temperature control chamber (3) through an influx inlet in the end region of said temperature control chamber (3), is withdrawn at the other end of said temperature control chamber (3), and re-circulated, and in that one or more temperature sensors, which is/are connected to a control circuit controlling the controllable hot-air circulation system, is/are disposed within said temperature control chamber (3).
13. The device according to claim 12, characterised in that said temperature control chamber (3) is integrated into a workbench (8) underneath the work surface (2) of said workbench (8).
14. The device according to claim 12 or claim 13, characterised in that several holders (5) for supporting skis (6) are provided within said temperature control chamber (3).
15. The device according to claim 14, characterised in that said support holders (5) are provided at superimposed levels.
16. The device according to claim 14 or claim 15, characterised in that said temperature control chamber (3) has a tilt door (7) at one of its sides, and in that said support holders (5) may be pulled out of said temperature control chamber (3) when said tilt door (7) is open.

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