WO2007056783A1

WO2007056783A1 - Hot waxing ski coatings with ski wax

Info

Publication number: WO2007056783A1
Application number: PCT/AT2006/000466
Authority: WO
Inventors: Manfred Stadler; Fritz Url; Herbert Weiss; Ernst Groiss
Original assignee: Manfred Stadler; Fritz Url; Herbert Weiss; Ernst Groiss
Priority date: 2005-11-15
Filing date: 2006-11-13
Publication date: 2007-05-24
Also published as: EP1948334B1; EP1948334A1; AT503012B1; AT503012A4; DE502006004938D1; ATE443551T1

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

Hot waxing of Schibelwachs with ski wax

The invention relates to a method for hot waxing of Schibelwachs with Schiwachs, wherein the Schibelag located on a ski heated together with this on a relative to the ambient temperature increased object temperature and the ski wax is applied to the covering.

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 a wide variety of snow types. 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, on the one hand to allow the deepest penetration of the wax and on the other hand to prevent overheating of the Schibelages, otherwise threaten irreversible damage in the surface of the pavement, which is an impairment the driving characteristics bring with it.

Previously used methods for hot waxing are very time consuming and only in to perform laborious manual work.

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 the ski as a whole before and / or after the application of Schiwachses each during a period of time that is more than 15 minutes, on the increased object temperature, which is greater than or equal to 40 ⁰ C is maintained.

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.

Either the raised object temperature is maintained before the application of the wax layer or this happens after the waxing process. In both cases, an increase in the penetration depth is observed. Both processes can also be combined by applying the process according to the invention both before and after growth.

Due to the significantly increased compared to conventional methods wax absorption not only reduces the time required for hot waxing, but it can the wear of the waxed surface covering clearly be reduced, so that a 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 may according to an embodiment of the invention, prior to applying the wax in a pre-treatment step of the ski having thereon the ski lining as a whole during a predeterminable pretreatment period are maintained constant at the elevated object temperature is greater than or equal to 40 ⁰ C, and after the end the pretreatment period, the ski wax be applied to the heated Schibelag.

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.

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 according to one embodiment be achieved by the fact that the object temperature is in a range between 40 ⁰ C and 60 ⁰ 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 holding the object temperature during the predeterminable treatment period can be carried out once or, if necessary, several times be repeated.

In a further development of the invention can therefore be provided that is maintained in an aftertreatment step of the ski with the already waxed Schibelag during an aftertreatment period at the elevated object temperature, the post-treatment period is greater than the pretreatment period, preferably several hours.

The post-treatment period may preferably be between two and one hundred hours. An aftertreatment time of seventy hours has proven to be particularly preferred, since here a maximum of the penetration depth of the wax could be detected.

In a further embodiment of the invention, the increased object temperature in the post-treatment step between 5O ⁰ C and 8O ⁰ C, preferably 75 ⁰ C. In the aforementioned temperature range results in a particularly high penetration depth for ski wax.

Some influence on the result of the invention Hot waxing also has the speed at which the object temperature is raised.

According to a further embodiment of the invention, in the post-treatment step, the heating to the increased object temperature can be carried out within a predetermined heating-up 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.

A further improvement of the Wachseindringvorganges can be achieved if 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 preferably short-term cooling from the increased object temperature 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, between 30 ⁰ C and 70 ⁰ C, preferably 45 ⁰ C.

The object of the invention is further achieved by a device for heat treating skis with Schibelägen for hot growing the Schibelages with a temperature chamber for receiving at least one ski or more skis with Schibelag, wherein the temperature within the temperature chamber is constantly adjustable. In this way, the temperature pretreatment according to the invention can be used precisely and reproducibly.

To subject several skis to a temperature pre-treatment at the same time can be provided in the Temperaturregeiungs chamber several brackets for supporting skis.

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.

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 an open swing door from the temperature control chamber are extendable.

An embodiment of the invention may be that a controllable hot air recirculation system is provided for maintaining temperature within the temperature control chamber, and that within the temperature control chamber, one or more temperature sensors are arranged, which are connected to a control circuit which controls the controllable Warm air circulating system controls. 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.

A particularly rational and efficient operation during hot growing can be achieved if the temperature control chamber is installed according to a further embodiment of the invention in a workbench below the working surface of the worktable.

The invention will be explained in detail with reference to the embodiment shown in the drawings. 1 shows a perspective view of an embodiment of the device according to the invention for carrying out the method according to the invention in the empty, opened state with the ski holders moved out; FIG. 2 shows a perspective view of the embodiment according to FIG. 1 in the opened state loaded with skis; FIG.

3 shows a temperature-time diagram for illustrating a pretreatment of

Skis according to one embodiment of the method according to the invention;

4 shows a temperature-time diagram for illustrating a post-treatment of skis according to a further embodiment of the invention

Procedure and

5 shows a temperature-time diagram for illustrating a post-treatment of skis according to a further embodiment of the invention

Process.

1 and 2 show a device 1 according to the invention for heat-treating 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 may e.g. be realized:

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 shown in FIGS. 1 and 2, up to 12 pairs of skis can be accommodated.

Within the temperature control chamber 3, a controllable in Figs. 1 and 2 hot air circulating system for keeping constant temperature is provided, 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 warm air recirculation 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 shown in the embodiment of FIGS. 1 and 2, the temperature control chamber 3 is installed in a workbench 8 below a working 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-Waxes with Schiwachs is carried out by the schi together with this, heated to an ambient temperature increased to the object temperature and the ski wax is applied to the coating.

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 ^° C.

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-time pretreatment is kept constant at the object temperature in a pretreatment step the ski 4 and the ski coating thereon as a whole during a predeterminable, is greater than or equal to 40 ⁰ C. 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 pre-treatment at an object temperature Tpre = 45 ⁰ C over a period Tpre = 40 minutes is.

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:

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, a heat-treatment is shown at an object temperature Tnach = 75 ⁰ C, which is within the preferred range of 50 ⁰ C to 90 ⁰ C over a period of time after treatment tnach = 70 hours.

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.

Heat treatment with cooling phases:

The aftertreatment step may be interrupted by intermittent cooling to promote intense contact between ski wax and pores.

As shown in FIG. 5 by way of example, one or more, in the example concrete, two cooling phases are performed by lowering the raised object temperature Tnach to a cooling temperature Tab and then returning to the increased object temperature Tnach during the post-treatment step. The cooling temperature is in the example shown between 30 ⁰ C and 70 ⁰ C ₁ specifically 45 ⁰ C.

Claims

1. A method for hot waxing of Schibelwachs with ski wax, wherein the schi-day located on a ski heated together with this on a relative to the ambient temperature increased object temperature and the ski wax is applied to the pad, characterized in that the ski as a whole before and / or after the application of the Schiwachses each for a period of time that is more than 15 minutes, on the increased object temperature, which is greater than or equal to 40 ⁰ C, is maintained.

2. The method according to claim 1, characterized in that prior to the application of the wax in a pretreatment step, the ski with the thereon Schibelag as a whole during a predeterminable pre-treatment period is kept constant at the elevated object temperature which is greater than or equal to 40 ⁰ C. and at the end of the pretreatment period, the ski wax is applied to the heated coating.

3. The method according to claim 1 or 2, characterized in that the pretreatment step is carried out in a closed chamber, and that the ski wax is applied outside the chamber on the Schibelag.

4. The method according to claim 2 or 3, characterized in that the object temperature is in a range between 40 ⁰ C and 60 ⁰ C.

5. The method according to any one of claims 2 to 4, characterized in that the pretreatment period is 15 minutes to 60 minutes.

6. The method according to any one of the preceding claims, characterized in that in a post-treatment step of the ski with the already waxed shim during an aftertreatment period is maintained at the elevated object temperature, wherein the aftertreatment period is greater than the pretreatment period, preferably several hours.

7. The method according to claim 6, characterized in that the post-treatment period is between two and a hundred hours.

8. The method according to claim 7, characterized in that the post-treatment period is seventy hours.

9. The method of claim 6, 7 or 8, characterized in that the increased object temperature in the post-treatment step between 5O ⁰ C and 8O ⁰ C, preferably 75 ⁰ C.

10. The method according to any one of claims 6 to 9, characterized in that in the post-treatment step, the heating is carried out to the increased object temperature within a predetermined heating period, which is between 30 minutes and 7 hours.

11. The method according to claim 10, characterized in that the heating time period is 60 minutes.

12. The method according to any one of claims 6 to 11, characterized in that during the post-treatment step, a 'or more cooling phases are passed through lowering the object temperature to a cooling temperature and subsequent return to the increased object temperature.

13. The method according to claim 12, characterized in that the cooling temperature between 30 ⁰ C and 70 ⁰ C, preferably 45 ⁰ C.

14. An apparatus for heat treating of skis with Schibelägen for hot growing a Schibelages (6) with a temperature control chamber (3) for Receiving at least one ski (4) with Schibelag (6), wherein the temperature within the temperature control chamber (3) is constantly adjustable.

15. The apparatus according to claim 14, characterized in that in the temperature control chamber (3) a plurality of holders (5) for supporting skis (6) are provided.

16. The apparatus of claim 14 or 15, characterized in that the support brackets (5) are provided in superimposed planes.

17. The apparatus of claim 15 or 16, characterized in that the temperature control chamber (3) has a side pivot door (7), and that the support brackets (5) with the swing door open (7) from the temperature control chamber (3) extendable are.

18. Device according to one of claims 14 to 17, characterized in that a controllable warm air circulating system for maintaining constant temperature within the temperature control chamber (3) is provided, and that within the temperature control chamber (3) one or more temperature sensors arranged are connected to a control circuit which controls the controllable warm air circulating system.

19. Device according to one of claims 14 to 18, characterized in that the temperature control chamber (3) in a workbench (8) below the working surface (2) of the worktable (8) is installed.