EP3881913A1 - Application device - Google Patents

Abstract

Device (1) for applying a liquid lubricant (2) comprising an aqueous solution to a sliding surface of sports equipment, in particular winter sports equipment. According to the invention, the device comprises a trough (3) for receiving the lubricant (2), a feed roller (5) arranged at least in sections in the trough (3) and an application roller (6) which, viewed in a first direction (7), at least in sections an open tub edge (4) is arranged and seen in the first direction (7) is arranged at least in sections behind the feed roller (5), wherein the application roller (6) contacts the feed roller (5), and the application roller (6) on the shell side Has grooves (10).

Description

FIELD OF THE INVENTION

The present invention relates to a device for applying a liquid lubricant comprising an aqueous solution to a sliding surface of sports equipment, in particular winter sports equipment.

STATE OF THE ART

Lubricants for increasing the lubricity of sports equipment are known in particular from winter sports. In order to reduce the friction between a sliding surface of winter sports equipment, for example skis, snowboards or short skis, and a snow slope, the sliding surface of the respective winter sports equipment is usually covered with an evenly thin layer of ski wax (or wax). With regard to the entire present application, however, it should be noted that the sliding surface of sports equipment used in summer can also be treated with lubricant - e.g. for ski jumping skis used in summer, which slide on plastic mats instead of snow. The process of applying wax-based lubricants is usually quite complex, as the wax usually has to be heated before application and removed in a further work step after the actual application, whereby the sliding surface is usually also brushed and polished.

As an alternative to wax-based lubricants, liquid lubricants comprising an aqueous solution - hereinafter also referred to as quick lubricants -, in particular under the brand name GigaGlide, have recently been known from the prior art. These are characterized, among other things, by a significantly longer effect and environmental friendliness compared to wax-based lubricants and do not require heating for application, which makes these lubricants particularly attractive for private individual users.

Especially with large quantities of sports equipment that needs to be serviced quickly, e.g. when several thousand pairs of skis have to be lubricated overnight in winter sports resorts, there is also a need for machine application with quick lubricants. However, conventional application devices for applying wax-based lubricants, in which heating is provided for the wax and the wax is applied to the sliding surface by means of rollers, are not suitable for this purpose. In contrast to wax-based lubricants, quick lubricants have such a high lubricity that the ski or sports equipment simply slides on the respective roller and the roller does not turn sufficiently or not at all. It is therefore not possible to apply the quick-release lubricant, in particular evenly, over the entire sliding surface.

Furthermore, conventional application devices are unnecessarily complex and expensive due to the built-in heating devices, since no heating is required with the quick-slide means.

OBJECT OF THE INVENTION

It is therefore the object of the present invention to provide an applicator for liquid lubricants comprising an aqueous solution which avoids the disadvantages outlined above. In particular, a cost-effective way of uniformly applying a quick-release lubricant to the sliding surface of sports equipment, preferably winter sports equipment, is to be created.

DISCLOSURE OF THE INVENTION

To achieve the stated object, it is provided according to the invention in a device for applying a liquid lubricant comprising an aqueous solution to a sliding surface of sports equipment, in particular winter sports equipment, that the device comprises a tub for receiving the lubricant, at least in sections in the tub arranged feed roller and an application roller, which is arranged at least in sections over an open tub edge when viewed in a first direction and is arranged at least in sections behind the feed roller when viewed in the first direction, the application roller making contact with the feed roller, and the application roller having a grooving on the shell side.

As already mentioned, a piece of sports equipment can be, for example, a ski that is intended for sliding on snow in winter, or, for example, a ski jumping ski that is intended for sliding on plastic mats in summer.

The tub serves to hold the liquid lubricant comprising the aqueous solution or the quick lubricant. Due to the open rim of the tub, the quick-release lubricant can simply be emptied into the tub, with the tub being filled to such an extent during use that the feed roller at least is arranged in sections in the quick-release lubricant or immersed in the quick-release lubricant.

The feed roller allows the filling level of the rapid slide to be selected so that the application roll is not arranged in the rapid slide or dips into the rapid slide, but rather the fast slide is only fed to the application roll via the feed roll. On the one hand, this prevents - as would be unavoidable when the application roll is immersed in the quick-release lubricant - there is far too much quick-release lubricant on the application roll and the sliding surface of the sports equipment slides off or over the application roll without the application roll rotating significantly comes. This means that the prerequisite is created to prevent an uneven distribution of the quick lubricant on the sliding surface of the sports equipment.

On the other hand, the interaction of the feed roller with the application roller can in principle ensure that a sufficient amount of quick-release lubricant is applied to the application roller.

Said interaction is optimized by the contact between the feed roller and the application roller, the other roller also being rotated when one of the two rollers is rotated.

Using the application roller, the quick lubricant is applied to the sliding surface of the sports equipment by placing the sports equipment with the sliding surface on the application roller and, if necessary, pressing it lightly and then moving it across the application roller across the axis of rotation of the application roller. In order to enable the sports equipment to be placed on the application roll without any problems, the application roll protrudes at least in sections beyond the open tub edge or is arranged at least in sections behind (ie "over") the tub edge when viewed in the first direction.

If there is not too much quick-release lubricant on the application roll, the application roll is set in rotation by the movement of the sports equipment and the quick-release lubricant located on the application roll can be transferred to the sliding surface.

In practice, it has been shown that, due to the outstanding sliding properties of the quick-release lubricant, the construction of the feed roller and application roller alone is not sufficient to ensure that when the device is used, there is not still a bit too much quick-release lubricant, more precisely a film of quick-release lubricant that is too thick, on the shell side Application roll is arranged and the sports equipment slips off at least in phases on the application roll. In order to be able to achieve an optimal, not too great, film thickness of the rapid lubricant on the shell side of the application roll, the application roll has a grooving on the shell side. This grooving enables the rapid sliding agent transferred from the feed roll to the application roll to be partially arranged in the grooving of the application roll and a layer thickness of the rapid lubricating agent on the application roll does not become too great. This actually ensures that the application roller is set in rotation by the movement of the sports device and that the quick-release lubricant located on the application roller is transferred to the sliding surface without the sports device slipping through. The sliding surface of the sports equipment can thus be coated evenly with the quick lubricant.

Basically, different designs of the grooves allow a sufficient reduction in the thickness of the quick-release lubricant film on the application roll, so that the sports equipment does not slip through during application and the quick-release lubricant is evenly applied to the sliding surface. For example, it would be conceivable that the grooving of the application roll has one or more grooves that are in the Run essentially parallel to the axis of rotation of the application roller.

It would also be conceivable that the creasing of the application roll comprises one or more grooves that enclose an angle greater than 0 ° and less than or equal to 90 ° with the axis of rotation (more precisely, for each point of the course of the groove, a vector of a tangent to the Course at this point with a vector lying in the axis of rotation includes said angle) and revolve around the axis of rotation at least in sections. A plurality of grooves that are separate from one another can be arranged next to one another or one behind the other, viewed parallel to the axis of rotation.

In order to achieve an optimal distribution of the quick-release lubricant over the entire side of the shell - both circumferentially and along the axis of rotation of the application roller - it is provided in a preferred embodiment of the device according to the invention that the grooving of the application roller is at least one, preferably exactly one, around one The axis of rotation of the application roller includes a spiral circumferential groove. It turns out that an optimal film thickness of the quick lubricant can be set on the shell side of the application roller, so that a particularly uniform application of the quick lubricant on the sliding surface of the sports equipment results when the device according to the invention is used as intended.

Particularly preferably, the grooving of the application roll consists of exactly one (continuous) spiral-shaped circumferential groove.

Viewed along the axis of rotation of the applicator roll, the grooving, possibly the precisely one spiral-shaped circumferential groove, extends preferably over at least 90%, particularly preferably over at least 95% of the outer side of the applicator roll.

In a preferred embodiment of the device according to the invention it is provided that in a first cutting plane seen the grooving of the application roller has a plurality of depressions, wherein an axis of rotation of the application roller lies in the first cutting plane, and that seen in a second direction the depressions are arranged one behind the other, the second direction being parallel to the axis of rotation of the application roller. Due to the distribution of the depressions along the second direction, an optimal distribution of the quick-release lubricant on the shell side of the application roller can be ensured along the second direction. This in turn has a positive effect on the uniformity of the application of the quick-release lubricant on the sliding surface of the sports device across the width of the sliding surface. The width of the sliding surface is measured in a direction which, when applying or moving the sports device, is usually transverse to a fourth direction or to a direction of movement of the sports device - and typically essentially parallel to the axis of rotation of the application roller or to the second direction .

For the optimal formation of the quick lubricant film on the shell side of the application roll, it is provided in a particularly preferred embodiment of the device according to the invention that a straight web section running parallel to the second direction is arranged between two successive depressions, viewed in the first cutting plane and in the second direction . Preferably, the film thickness is measured normal to the web portion.

In a particularly preferred embodiment of the device according to the invention, it is provided that in the first cutting plane one or more, preferably each, of the depressions have an opening angle in the range from 30 ° to 40 °, preferably from 32.5 ° to 37.5 ° lies.

The opening angle is enclosed by tangents at two opposite points of the edge of the recess on the surface of the recess and by the Shell side of the application roll are placed facing outwards.

It turns out that said opening angle ensures an optimal transfer of the quick-release lubricant into and out of the respective recess. This in turn causes, on the one hand, an effective transfer of the quick-release lubricant from the feed roller to the application roller and, on the other hand, from the application roller to the sliding surface of the sports equipment.

In a particularly preferred embodiment of the device according to the invention, it is provided that in the first cutting plane one or more, preferably each, of the depressions have, at least in sections, the shape of an arc of a circle with radius R. On the one hand, a particularly favorable ratio can be achieved in this way between the receiving volume of the recess available for receiving the quick-release lubricant and the surface of the recess. On the other hand, said shape can also prove to be favorable in terms of production technology.

It should be noted that the radius R does not necessarily have to be identical for all depressions of the application roll, but can be of course.

Radii R which are in the range from 0.3 mm to 0.5 mm, preferably from 0.35 mm to 0.45 mm, particularly preferably around 0.4 mm, have proven to be optimal for applying the rapid lubricant.

In a particularly preferred embodiment of the device according to the invention, it is provided that one or more, preferably each, of the depressions have a depth T in the first sectional plane, where T> R applies. The resulting geometry of the depressions proves itself in particular as particularly favorable in terms of production technology, the grooves being able to be produced, for example, by cutting or milling. In addition, the receiving volume can be relatively easily adjusted to a desired value by choosing a suitable depth T in order to be able to specifically take up a little more or a little less rapid lubricant with the application roller and apply it with it.

For the application of the quick lubricant, depths T which are in the range from 0.4 mm to 0.6 mm, preferably from 0.45 mm to 0.55 mm, particularly preferably around 0.5 mm, prove to be optimal.

In a preferred embodiment of the device according to the invention, it is provided that the application roller has a flexible layer made of rubber or plastic on the jacket side. The flexible layer is not dimensionally stable and in this sense can also be referred to as "elastic". Said flexibility or elasticity enables slight irregularities in the form of the sliding surface to be compensated for by the application roller when the quick-release lubricant is applied to the sliding surface. In particular, recessed areas of the sliding surface can thus also be wetted with the quick-release lubricant without any problems.

In order to be able to optimally compensate for said irregularities in the form of the sliding surface during application and at the same time not to let the deformation of the application roller in the area of the shell side become so great that the transfer of the quick lubricant from the application roller to the sliding surface is impaired, in a particularly preferred embodiment of the The device according to the invention provides that the hardness of the flexible layer is in the range from 65 Shore to 75 Shore, preferably from 67.5 Shore to 72.5 Shore. A hardness of approx. 70 Shore typically proves to be optimal.

In a particularly preferred embodiment of the device according to the invention it is provided that the flexible layer is arranged on a dimensionally stable application roller core, with a thickness of the flexible layer in the range from 20% to 37%, preferably from 23.5% to 33.5%, one Application roller radius is the application roller radius with which the application roller extends away from an axis of rotation. The use of a dimensionally stable application roll core allows a permanently precise arrangement of the application roll in relation to the feed roll and is therefore advantageous for the desired interaction of the two rolls. At the same time, the mentioned thickness of the flexible layer allows that, in practice, even relatively large irregularities in the form of the sliding surface can be compensated for by the application roller.

The application roller radius is typically in a range from 15 mm to 20 mm. For example, the application roller radius is approx. 17.5 mm and the thickness of the flexible layer is approx. 5 mm.

In order to be able to apply a quick lubricant film optimally designed for the application of the quick lubricant to the sliding surface of the sports equipment on the application roller by means of the feed roller, it must be ensured that the feed roller absorbs sufficient, but at the same time not too much, quick lubricant. In order to be able to precisely set the amount of quick-release lubricant that can be picked up by the feed roller, it is provided in a preferred embodiment of the device according to the invention that the feed roller has a grooving on the casing side, the grooving preferably at least one, particularly preferably exactly one, about an axis of rotation of the feed roller Includes spiral circumferential groove.

For example, it would be conceivable that the grooves of the feed roller have one or more grooves which run essentially parallel to the axis of rotation of the feed roller.

It would also be conceivable that the grooving of the feed roller includes one or more grooves that enclose an angle greater than 0 ° and less than or equal to 90 ° with the axis of rotation (more precisely, for each point of the course of the groove, a vector of a tangent to the Course at this point with a vector lying in the axis of rotation includes said angle) and revolve around the axis of rotation at least in sections. A plurality of grooves that are separate from one another can be arranged next to one another or one behind the other, viewed parallel to the axis of rotation of the feed roller.

Particularly preferably, the grooving of the feed roller consists of exactly one (continuous) spiral-shaped circumferential groove.

Viewed along the axis of rotation of the feed roller, the grooving, possibly the precisely one spiral circumferential groove, extends preferably over at least 90%, particularly preferably over at least 95% of the casing side of the feed roller.

In a particularly preferred embodiment of the device according to the invention, it is provided that, viewed in a second sectional plane, the grooves of the feed roller have a plurality of depressions, an axis of rotation of the feed roller lying in the second sectional plane, and that the depressions are arranged one behind the other when viewed in a third direction , the third direction being parallel to the axis of rotation of the feed roller.

The axes of rotation of the application roller and the feed roller are preferably parallel and thus the second direction and the third direction are also parallel or the same.

Due to the distribution of the depressions along the third direction, an optimal distribution of the quick-release lubricant on the shell side of the feed roller can be ensured along the third direction. This in turn has a positive effect on the uniformity of the transfer of the quick-release lubricant to the application roller along its axis of rotation. This creates the prerequisite for the rapid lubricant to be applied homogeneously over the width of the sliding surface by means of the application roller.

In a particularly preferred embodiment of the device according to the invention, it is provided that two consecutive depressions of the grooves of the feed roller have a distance from one another measured parallel to the third direction, which is greater than a distance measured parallel to the second direction between two consecutive depressions of the grooves the order roll to each other. This does not have to - but can of course - apply to all depressions of the feed roll or the order roll. With this geometry it can be achieved that, when the device according to the invention is used as intended, there is somewhat more rapid sliding agent on the feed roller than can be transferred to or received by the application roller. In other words, it can be ruled out that the feed roller cannot receive enough quick-slide means.

In a particularly preferred embodiment of the device according to the invention it is provided that in the second cutting plane one or more, preferably each, of the depressions of the grooves of the feed roller at least in sections have the shape of an arc of a circle with radius R 'and a depth T', where T '≤ R' holds. On the one hand, a particularly favorable ratio can be achieved in this way between the receiving volume of the respective recess of the feed roller and the surface of the recess, which is available for receiving the quick-release lubricant. On the other hand, said shape can also prove to be favorable in terms of production technology.

It should be noted that the radius R 'does not necessarily have to be identical for all depressions of the feed roller, but can of course be.

Radii R 'in the range from 0.3 mm to 0.5 mm, preferably from 0.35 mm to 0.45 mm, particularly preferably around 0.4, prove to be optimal for receiving the rapid sliding means by the feed roller mm, lie.

By choosing a suitable depth T ', the receiving volume can also be set relatively easily to a desired value in order to be able to specifically take up a little more or a little less quick-release lubricant with the feed roller and transfer it to the application roller with it. Here, depths T 'prove to be optimal which are in the range from 0.2 mm to 0.4 mm, preferably from 0.25 mm to 0.35 mm, particularly preferably around 0.3 mm.

In a particularly preferred embodiment of the device according to the invention, it is provided that the feed roller, in particular on the shell side, is designed to be dimensionally stable. That means, unlike the application roll, the feed roll is not flexible.

On the one hand, this allows a reliable coupling or a reliable interaction between the feed roller and the application roller, which is important for the reliable transfer of the rapid sliding agent. On the other hand, the feed roller can be manufactured particularly simply and / or in one piece in terms of manufacturing technology. Ie a subdivision into core and jacket layer of the feed roller is not necessary, but of course not excluded either.

In a preferred embodiment of the device according to the invention, it is provided that the feed roller and the application roller are mounted on a resiliently mounted roller mount in order to enable a resilient movement with at least, preferably exclusively, one directional component parallel to the first direction. A pressing or pressing of the sliding surface of the sports device against the application roller is promoted, which in turn favors the rotary movement of the application roller when moving the sports device in the course of the intended use of the device according to the invention. The resilient mounting can be implemented, for example, by means of a spring plate which is fastened to the bottom of the tub and on which the roller holder is in turn mounted.

In order to be able to remove excess rapid lubricant from the sliding surface of the sports device in the same work step, a preferred embodiment of the device according to the invention provides that a stripping roller with a smooth surface on the shell side is provided. Due to the lack of structuring on the shell side of the stripping roller, as much excess quick-release lubricant as possible can be stripped off the sliding surface with the stripping roller.

The stripping roller can also be connected to the tub and can in particular be arranged in such a way that, viewed in the first direction, it is arranged at least in sections above or behind the open tub rim. The latter allows that the stripped quick lubricant can be caught in the tub and that the sports equipment with the sliding surface can be brought to rest on the stripping roller without any problems.

Correspondingly, when the device according to the invention is used as intended, the sliding surface is first guided over the application roller and then over the stripping roller. In particular, the situation may temporarily exist in this case that the sports device is resting on both the application roller and the stripping roller at the same time. Correspondingly, viewed in the direction of movement of the sports device or in the fourth direction, the stripping roller is arranged behind the application roller.

In a preferred embodiment of the device according to the invention it is provided that a drain cock is provided in the area of the bottom of the tub in order to be able to drain any remaining quick-release lubricant at the end of the operation or the working day and to be able to use it again later.

In a particularly preferred embodiment of the device according to the invention it is provided that, viewed in the second sectional plane and in the third direction, a straight web section running parallel to the third direction is arranged between two successive depressions of the grooves of the feed roller. This configuration is advantageous for the quick slip absorption capacity of the feed roll.

The web sections of the feed roll are preferably larger than the web sections of the application roll, the lengths being measured parallel to the third or second direction. The result is a particularly good transfer of the quick-release lubricant from the feed roller to the application roller.

In a particularly preferred embodiment of the device according to the invention it is provided that in the second cutting plane one or more, preferably each, of the depressions of the grooves of the feed roller have an opening angle in the range from 30 ° to 40 °, preferably from 32.5 ° to 37.5 °. The opening angle is enclosed by tangents at two opposite points of the The edge of the recess is placed on the surface of the recess and facing outward from the shell side of the feed roller. As can already be seen from what has been said above in connection with the application roll, said opening angle ensures an optimal transfer of the quick-release lubricant into and out of the respective recess. This in turn brings about an effective transfer of the quick-release lubricant from the tub to the feed roller - that is, this design is particularly advantageous for the quick-lubricant absorption capacity of the feed roller - and secondly from the feed roller to the application roller.

BRIEF DESCRIPTION OF THE FIGURES

The invention will now be explained in more detail using an exemplary embodiment. The drawings are exemplary and are intended to explain the concept of the invention, but in no way restrict it or reproduce it conclusively.

Fig. 1

eine axonometrische Ansicht einer Ausführungsform der erfindungsgemäßen Vorrichtung

Fig. 2

eine vergrößerte Ansicht des Details A aus Fig. 1

Fig. 3

eine Aufsicht von oben auf die Vorrichtung aus Fig. 1

Fig. 4

eine Schnittansicht gemäß der Schnittlinie B-B aus Fig. 3

Fig. 5

eine Schnittansicht einer Auftragsrolle der Vorrichtung aus Fig. 1

Fig. 6

eine vergrößerte Ansicht des Details C aus Fig. 5

Fig. 7

eine Schnittansicht einer Zuführrolle der Vorrichtung aus Fig. 1

Fig. 8

eine vergrößerte Ansicht des Details D aus Fig. 7

It shows:

Fig. 1

an axonometric view of an embodiment of the device according to the invention

Fig. 2

an enlarged view of detail A. Fig. 1

Fig. 3

a top view of the device Fig. 1

Fig. 4

a sectional view according to the section line BB Fig. 3

Fig. 5

a sectional view of an application roll of the device Fig. 1

Fig. 6

an enlarged view of the detail C. Fig. 5

Fig. 7

Figure 3 is a sectional view of a feed roller of the device Fig. 1

Fig. 8

an enlarged view of the detail D. Fig. 7

WAYS OF CARRYING OUT THE INVENTION

Fig. 1 shows an axonometric view of an embodiment of an application device or device 1 according to the invention for applying a liquid lubricant comprising an aqueous solution - hereinafter referred to as quick lubricant 2 - to a sliding surface of sports equipment (not shown), in particular winter sports equipment, e.g. a ski. The device 1 comprises a tub 3 with a tub rim 4 that is open at the top (when used as intended) and is provided for receiving the quick-release lubricant 2, which is filled into the tub 3 for the intended use, cf. Fig. 4 (indicated there by the dashed line).

Furthermore, the device 1 comprises a feed roller 5 arranged (completely) in the tub 3 and an application roller 6 which, viewed in a first direction 7, is arranged in sections above or behind the open tub rim 4 and, viewed in the first direction 7, behind the feed roller 5 is arranged, wherein the application roller 6 contacts the feed roller 5.

The application roller 6 has a grooving on the jacket side which, in the exemplary embodiment shown, is formed by precisely one groove 10 running in a spiral shape around an axis of rotation 8 of the application roller 6, cf. Fig. 2 with an enlarged view of detail A. Fig. 1 .

The axis of rotation 8 of the application roller 6 runs parallel to a second direction 12, cf. Fig. 3 . An axis of rotation 9 of the feed roller 5 runs parallel to a third direction 22, see. Fig. 4 , the axes of rotation 8, 9 being parallel to one another and the directions 12, 22 coinciding. The feed roller 5 and the application roller 6 are rotatably mounted on a roller mount 29. The roller mount 29 is in turn mounted on the bottom of the tub 3 by means of a spring plate 30. This enables a resilient movement of the roller receptacle 29 - and thus of the application roller 6 and also of the feed roller 6 - with a directional component parallel to the first direction 7, which favors pressing or pressing of the sliding surface of the sports equipment against the application roller 6.

Feet 23 are provided on the tub 3 in order to be able to place the tub 3 on a firm surface, e.g. on a table, without any problems for the intended use.

Furthermore, in the illustrated embodiment of the device 1, a stripping roller 25 is provided, which is arranged behind the application roller 6 as seen in a fourth direction 26. The stripping roller 25 is mounted rotatably about an axis of rotation 27, the axis of rotation 27 being parallel to the axes of rotation 8, 9. The stripping roller 25 is arranged in sections within the tub 3 in such a way that, like the application roller 6, it projects over the open tub rim 4 in sections.

In the area of the bottom of the tub 3, a drain opening 20 and an adjoining drain cock 28 are provided, see in particular Fig. 4 in order to be able to drain the leftover quick-release lubricant 2 at the end of the operation or the working day and to be able to use it again later.

Viewed parallel to the fourth direction 26, the open tub edge 4 is adjoined by a support section 24 which protrudes outward from the rest of the tub 3 in such a way that its free end is inclined towards the first direction 7.

The support sections 24 serve to bring the sports device with its sliding surface without problems in the fourth direction 26 to the application roller 6, to guide it over the application roller 6 and the stripping roller 25 and to lead it away from the stripping roller 25 again. That is to say, the fourth direction 26 essentially corresponds to the direction of movement of the sports device when it is being applied, the user moving the sports device.

Neither motors are required to move the sports device or the individual rollers 5, 6, 25, nor heating means for heating the quick-release lubricant 2. A single pulling or moving of the sports device over the device 1 is sufficient and is done in seconds.

To use the device 1, so much quick-release lubricant 2 is filled into the tub 3 that the feed roller 5 is arranged at least in sections in the quick-release lubricant 2, but the level of the quick-release lubricant 2 should not be higher than the feed roller 5. The latter has the effect that the application roller 6 is only supplied with rapid lubricant 2 via the feed roller 5, with which the amount of rapid lubricant 2 or a rapid lubricant film thickness on the application roller 6 can be precisely adjusted.

Furthermore, the grooving of the application roll 6 allows the rapid sliding agent 2 transferred from the feed roll 5 to the application roll 6 to be partially arranged in the grooving of the application roll 6 and a layer thickness of the rapid lubricating agent 2 on the application roll 6 does not become too great. This actually ensures that the application roller 6 is set in rotation by the movement of the sports equipment and that the quick-release lubricant 2 located on the application roller 6 is transferred to the sliding surface without the sports equipment slipping through. the The sliding surface of the sports equipment can thus be coated evenly with the quick lubricant.

This means that the application roller 6 can be rotated in the fourth direction 26 without any problems by the sports device resting on it with the sliding surface. The sports equipment can be pressed against the application roller 6 if necessary. The contact between the application roller 6 and the feed roller 5 ensures a reliable interaction, so that the feed roller 5 is rotated and transfers the quick-release agent 2 to the application roller 6, which in turn applies the quick-release agent 2 evenly to the sliding surface.

Excess quick lubricant 2 on the sliding surface is wiped off by means of the stripping roller 25 and, due to the force of gravity, lands again in the tub 3 so that it can be reused.

In order to compensate for irregularities in the form of the sliding surface during application, the application roller 6 has a flexible layer 15 made of rubber or plastic on the jacket side. In the illustrated embodiment, the flexible layer 15 has a hardness of approximately 70 Shore.

The flexible layer 15 is arranged on a dimensionally stable application roller core 16. A thickness 17 of the flexible layer is typically approx. 5 mm and is part of an application roller radius 18, which is typically 17.5 mm, cf. Fig. 5 .

In Fig. 5 it can be seen that in a first cutting plane (in Fig. 5 the plane of the drawing), the grooving of the application roller 6 has a plurality of depressions 11, the axis of rotation 8 of the application roller 6 lying in the first sectional plane, and that, viewed in the second direction 12, the depressions 11 are arranged one behind the other. Due to the distribution of the depressions 11 along the second direction 12 an optimal distribution of the quick-release lubricant 2 on the shell side of the application roller 6 along the second direction 12 can be ensured. This in turn has a positive effect on the uniformity of the application of the quick lubricant 2 to the sliding surface of the sports device over the width of the sliding surface.

In the enlarged detailed view of the Fig. 6 it can be seen that, viewed in the first sectional plane and in the second direction 12, a straight web section 13 running parallel to the second direction 12 is arranged between two successive depressions 11. This allows an optimal formation of the quick lubricant film on the jacket side of the application roll 6.

Furthermore, in Fig. 6 It can be seen that the depressions 11 in the first sectional plane have an opening angle 14 which is approximately 35 °, which ensures an optimal transfer of the quick-slide means 2 into and out of the respective depression 11.

Furthermore, in Fig. 6 It can be seen that the depressions 11 in sections have the shape of an arc of a circle with radius R, where R is approximately 0.4 mm. A depth T of the depressions 11 in the illustrated embodiment is slightly larger than the radius R, namely approx. 0.5 mm, which results in a geometry which is favorable in terms of production technology and which is adapted to the desired amount of quick-release lubricant 2 to be received by the application roller 6.

In the exemplary embodiment shown, there is a distance 31 between two successive depressions 11 of approximately 1.75 mm, a length 33 of the web sections 13 of approximately 0.85 mm and an opening width 35 of the depressions 11 of approximately 0.9 mm .

In the illustrated embodiment, the feed roller 5 is made of a dimensionally stable material and also has a grooving on the shell side with exactly one groove 19 which runs around the axis of rotation 9 in a spiral, cf. FIGS. 1 and 2 . This makes it possible to ensure that the feed roller 5 takes up a sufficient amount, but at the same time not too much, quick-release lubricant 2 from the tub 3. In this way, a quick-release lubricant film that is optimally designed for applying the quick-release lubricant 2 to the sliding surface of the sports equipment can be applied to the application roller 6 by means of the feed roller 5.

In Fig. 7 it can be seen that in a second cutting plane (in Fig. 7 the plane of the drawing), the grooving of the feed roller 5 has a plurality of depressions 21, the axis of rotation 9 of the feed roller 5 lying in the second sectional plane, and that the depressions 21 are arranged one behind the other when viewed in the third direction 22. Due to the distribution of the depressions 21 along the third direction 22, an optimal distribution of the quick-release lubricant 2 on the shell side of the feed roller 5 along the third direction 22 can be ensured. This in turn has a positive effect on the uniformity of the transfer of the rapid sliding agent 2 to the application roller 6 along its axis of rotation 8. This creates the prerequisite for the rapid sliding agent 2 to be applied homogeneously over the width of the sliding surface by means of the application roller 6.

The feed roller 5 has a feed roller radius 37 which, like the application roller radius 18, is approximately 17.5 mm in the illustrated embodiment.

In the enlarged detailed view of the Fig. 8 it can be seen that viewed in the second sectional plane and in the third direction 22, in each case between two successive ones Depressions 21 a straight web section 34 running parallel to the third direction 22 is arranged. This design is advantageous for the quick-slip absorption capacity of the feed roller 5. The web sections 34 of the feed roller 5 have a length 39 that is greater than the length 33 of the web sections 13 of the application roll 6, the lengths being parallel to the third direction 22 and the second Direction 12 are measured. The result is a particularly good transfer of the rapid sliding agent 2 from the feed roller 5 to the application roller 6.

Furthermore, in Fig. 8 It can be seen that the depressions 21 in the second sectional plane have an opening angle 38 which is approximately 35 °, which ensures an optimal transfer of the quick-sliding means 2 into and out of the respective depression 21. This in turn causes an effective transfer of the quick slide 2 from the tub 3 to the feed roller 5 - that is, this design is particularly advantageous for the quick slide absorption capacity of the feed roller 5 - and on the other hand from the feed roller 5 to the application roller 6.

Furthermore, in Fig. 8 It can be seen that the depressions 21 in sections have the shape of an arc of a circle with a radius R ', where R' is approximately 0.4 mm. In the exemplary embodiment shown, a depth T 'of the depressions 21 is somewhat smaller than the radius R', namely approximately 0.3 mm. In addition to advantages in terms of manufacturing technology, there is a particularly favorable ratio between the receiving volume of the respective recess 21 of the feed roller 5 and the surface of the recess 21 that is available for receiving the quick-release lubricant 2.

In the exemplary embodiment shown, there is a distance 32 between two successive depressions 21 of approx. 2.5 mm, and a length 39 of the web sections 34 of approx. 2 mm and an opening width 36 of the recesses 21 of approximately 0.5 mm.

REFERENCE LIST

1

contraption

2

Quick lubricant

3

Tub

4th

Open tub rim

5

Feed roller

6th

Order role

7th

First direction

8th

Axis of rotation of the application roll

9

Rotation axis of the feed roller

10

Groove of the application roll

11

Deepening of the groove of the application roller

12th

Second direction

13th

Web section on the order roll

14th

Opening angle of the recess on the application roll

15th

Flexible shift

16

Order roll core

17th

Thickness of the flexible layer

18th

Application roll radius

19th

Feed roller groove

20th

Drain opening

21

Deepening the groove of the feed roller

22nd

Third direction

23

foot

24

Support section

25th

Scraper roller

26th

Fourth direction (direction of movement of the sports equipment)

27

Rotation axis of the stripping roller

28

Drain cock

29

Roll mount

30th

Spring plate

31

Distance between two depressions on the application roll

32

Distance between two indentations on the feed roller

33

Length of a web section on the order roll

34

Web section on the feed roller

35

Opening width of the recess on the application roll

36

Opening width of the recess on the feed roller

37

Feed roller radius

38

Opening angle of the recess on the feed roller

39

Length of a web section on the feed roller

R, R '

radius

T, T '

depth

Claims (15)

Device (1) for applying a liquid lubricant (2) comprising an aqueous solution to a sliding surface of sports equipment, in particular winter sports equipment, the device comprising a tub (3) for receiving the lubricant (2), an at least sectionally in the tub ( 3) arranged feed roller (5) and an application roller (6) which, viewed in a first direction (7), is at least partially above an open tub rim (4) and, viewed in the first direction (7), is at least partially behind the feed roller (5) ) is arranged, wherein the application roller (6) contacts the feed roller (5), and wherein the application roller (6) has a groove (10) on the jacket side. Device (1) according to claim 1, characterized in that the grooving of the application roller (6) comprises at least one, preferably exactly one, spiral groove (10) around an axis of rotation (8) of the application roller (6). Device according to one of Claims 1 to 2, characterized in that, seen in a first sectional plane, the grooves of the application roller (6) have a plurality of depressions (11), an axis of rotation (8) of the application roller (6) lying in the first cutting plane , and that, viewed in a second direction (12), the depressions (11) are arranged one behind the other, the second direction (12) being parallel to the axis of rotation (8) of the application roller (6). Device (1) according to claim 3, characterized in that seen in the first cutting plane and in the second direction (12) between two successive depressions (11) a straight line, parallel to the second direction (12) extending web portion (13) is arranged. Device according to one of Claims 3 to 4, characterized in that in the first cutting plane one or more, preferably each, of the depressions (11) have an opening angle (14) which is in the range of 30 ° to 40 °, preferably 32, 5 ° to 37.5 °. Device according to one of Claims 3 to 5, characterized in that in the first cutting plane one or more, preferably each, of the depressions (11) have the shape of an arc of a circle with radius R, at least in sections. Device (1) according to Claim 6, characterized in that in the first cutting plane one or more, preferably each, of the depressions (11) have a depth T, where T> R applies. Device according to one of Claims 1 to 7, characterized in that the application roller (6) has a flexible layer (15) made of rubber or plastic on the jacket side. Device according to Claim 8, characterized in that the hardness of the flexible layer (15) is in the range from 65 Shore to 75 Shore, preferably from 67.5 Shore to 72.5 Shore. Device according to one of Claims 8 to 9, characterized in that the flexible layer (15) is arranged on a dimensionally stable application roller core (16), a thickness (17) of the flexible layer (15) in the range from 20% to 37%, preferably from 23.5% to 33.5%, an application roller radius (18) with which Application roller radius (18), the application roller (16) extends away from an axis of rotation (8). Device according to one of claims 1 to 10, characterized in that the feed roller (5) has a grooving (19) on the jacket side, the grooving preferably at least one, particularly preferably exactly one, in a spiral shape around an axis of rotation (9) of the feed roller (5) encompasses circumferential groove (19). Device (1) according to Claim 11, characterized in that , viewed in a second sectional plane, the grooves of the feed roller (5) have a plurality of depressions (21), an axis of rotation (9) of the feed roller (5) lying in the second sectional plane, and that, viewed in a third direction (22), the depressions (21) are arranged one behind the other, the third direction (22) being parallel to the axis of rotation (9) of the feed roller (5). Device according to claim 12 and claim 3, characterized in that two consecutive depressions (21) of the grooves of the feed roller (5) have a distance (32) from one another, measured parallel to the third direction (22), which is greater than one parallel to the second direction (12) measured distance (31) between two consecutive depressions (11) of the grooves of the application roller (6) to one another. Device according to one of claims 12 to 13, characterized in that in the second cutting plane one or more, preferably each, of the depressions (21) of the grooves of the feed roller (5) at least in sections the shape of an arc of a circle with radius R 'as well as a Have depth T ', where T' ≤ R 'applies. Device according to one of Claims 11 to 14, characterized in that the feed roller (5), in particular on the casing side, is designed to be dimensionally stable.

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