EP1162031B1 - Apparatus for grinding the edges of skis and snowboards - Google Patents

Abstract

The machine for grinding the edges of skis and snow boards has an endless grinding belt (10) on a grinding head (7) which moves on adjustable guide strips (3) on each side of the machine frame. There are adjusters (2,4) to locally pivot and bend the guide strips. There are couplings between the belt arm and the guides.

Description

The invention relates to a device for grinding the angular to each other trending surfaces of the metallic edges of winter sports equipment like skis, snowboards using at least one Grinder with a continuous endless belt. Such Device is known from DE 298 06 017 U.

There are both handheld devices and so-called workshop devices for Known ski edges. These devices are trying to re-sharpen blunt edges so that the ski in question even in unfavorable conditions, especially on icy slopes, should again have the required grip similar to the new condition.

The problem with using the known devices is that due to the pronounced waist of modern skis and the defined Angularity of the edges of modern ski edges is not only a very imprecise one Resharpening is feasible, but when resharpening the angularity of the edge surfaces specified in the new condition as a rule changed and only a very different one over the length of the skis and uneven edge sharpening is achieved. Through such Resharpening operations are accordingly the original quality the skis impaired and, above all, changed the driving behavior, what for example with high quality skis, in particular Racing skis cannot be accepted.

The object of the invention is a device of the aforementioned Art to design so that even with strongly tailored skis and any Practical slope angles of the effective surfaces of the respective ski edge the original state of the edges can be restored.

This object is achieved according to the invention by the features of claim 1.

Through the defined clamping of the skis and the replication of the edge course through the guiding and guiding rulers for the actual grinder, it is possible to choose the one that is optimal original conditions of the skis when the attack was turned off to reach the sanding belt on the respective edge surface. The The inclination of the guiding and guiding ruler that can be adjusted locally over its length leads to a perfect guideway for the grinder that during the actual sharpening process, only run along the ruler must, under a substantially perpendicular to the ruler running, particularly easy to manually dose the Sanding belts to the edge. Because the grinder swivels on one slide which is displaceable perpendicular to the guide ruler, there is also an optimal adaptation to any waists and Edge angle.

To both edge surfaces, which in their mutual inclination the shape of the Defining the ski edge and being able to grind is the grinder with two Axle mounts running perpendicular to each other for those on the slide provided axis can be coupled, i.e. attachable, so that a simple transfer process is enough to perform both grinding operations in a row can.

Figur 1

eine schematische, perspektivische Darstellung einer ersten Ausführungsform einer Vorrichtung nach der Erfindung zur Erläuterung von Aufbau und Funktionsweise,

Figur 2

eine Detailansicht der Schleifbandeinheit,

Figur 3

eine perspektivische Darstellung einer zweiten Ausführungsform der Schleif- und Führungseinheit, wobei die Position zum Schleifen der seitlich gelegenen Fläche der Kante gezeigt ist, und

Figur 4

eine der Figur 3 entsprechende Darstellung mit umgesteckter Schleifeinheit, so daß die bündig mit der Lauffläche des Skiers gelegene Kantenfläche geschliffen werden kann.

Further advantageous refinements and special features of the invention are specified in the subclaims and are illustrated in connection with the explanation of exemplary embodiments with reference to the drawing.
The drawing shows:

Figure 1

2 shows a schematic, perspective illustration of a first embodiment of a device according to the invention to explain the structure and mode of operation,

Figure 2

a detailed view of the sanding belt unit,

Figure 3

a perspective view of a second embodiment of the grinding and guiding unit, the position for grinding the side surface of the edge is shown, and

Figure 4

a representation corresponding to Figure 3 with repositioned grinding unit, so that the edge surface located flush with the running surface of the skis can be ground.

According to Figure 1 is between two end support members or side walls 1 a holder for receiving the skis 14 to be sharpened in each case 13 for clamping elements 12 and a continuous ski system 11 intended. It is by means of the clamping elements 12 and the ski system 11 possible to align the respective ski 14 so that it over its length in is located on one level and thus also the ski edges 15 in this level lie. The tread of the skis, the one between the edges Ski covering wears the reference number 16.

Both sides of the holder 13 for the clamping elements 12 and themselves extending between the side walls 1 are preferably cylindrical trained adjustment axes 2 are provided, each having a guide and Wear guide ruler 3.

This guiding and guiding ruler 3 is held in setting wheels 4, which with mutual distance arranged over the length of the adjustment axis 2 are and preferably in corresponding ring grooves of the adjustment axis 2 engage and turn in these ring grooves with self-locking are. The respective guiding and guiding ruler 3 is in slot recesses the setting wheels 4 are firmly held. Between the setting axis 2 and the respective setting wheel 4 scales 24 are provided so that the relative rotation to be selected or relative rotation of the Guiding and guiding rulers 3 can be set reproducibly.

The setting of the guidance and guidance ruler that takes place according to the arrows 17 3 takes place depending on the circumstances, i.e. concrete depending on the angles of inclination of the at least outer Edge area over the length of the skis, i.e. by means of the guidance and management ruler 3 is the edge slope over the length of the ski 14 simulated.

The guiding and guiding ruler 3 forms the guideway for a supporting and guide unit 5, in which the guide and guide ruler 3 is form-fitting engages via a corresponding receptacle so that the carrying and guide unit 5 moved along the guide and guide ruler 3 can be followed exactly the curve that is used for the guidance and guidance ruler 3 by adjusting the setting wheels 4 accordingly can be specified.

It goes without saying that the two present in the device Guiding and guiding rulers 3 set analog or mirror image be able to grind both edges 15 of the skis 14.

The carrying and guiding unit 5 is composed of a sliding part 5 ', which along the guidance and guidance ruler 3 corresponding to the Double arrow x-x is movable, and a carriage 6, which with the Sliding part 5 ', for example, coupled via a dovetail connection and is movable transversely to the direction of travel of the sliding part 5 '. These movement options are indicated by the double arrow y-y.

The carriage 6 carries an axis 18 which is perpendicular to the surface of the Slide 6 protrudes and with two mutually perpendicular Axle receptacles 28, 28 'in the grinder 7 can be coupled, so that the Grinder 7 is pivotable about the axis 18 according to the arrow 19.

As FIG. 2 shows, the grinding device 7 comprises an endless grinding belt 10, which is guided around two spaced axes, one of these axes represents a drive axle 20. In the effective range of the grinding belt 10 a swing arm 8 is provided, which is arranged in a swing arm receptacle 9 and supports the inside 22 of the grinding belt 10. Due to the provided positive locking connections, the rocker 8 follows exactly each inclination predetermined by the grinder 7, so that it is possible always an inclination that corresponds exactly to the respective target angle To specify the grinding surface. The rocker 8 has in the effective range Abrasive belt 10 preferably has a curved support surface 30 so that optimal adaptation to the waist during each grinding process of the ski 14 can be reached and undesirable cuts are avoided become. The rocker 8 can have all-round flexibility.

The perspective view of Figure 1 leaves the working and functional principle clearly recognize the grinding device according to the invention. For an exact grinding process according to the target values according to the new condition to be able to perform the relevant ski 14 is in the already described the guiding and guiding ruler 3 via the setting wheels 4 set according to the double arrows 17, so that after Attaching the carrying and guiding unit 5 with the grinding device 7 Creation of the sliding clutch 23 between the support and guide unit 5 and guidance and guidance ruler 3 it is only necessary to use the grinder 7 to move along the skis 14 and a pressure in the direction Exercise edge 15 to be ground. Because of the rotating Storage of the grinder 7 on the one hand and the exact inclination setting on the other hand, via the guidance and management ruler 3, is inevitable the desired exact cut is achieved, which of course on both sides of the Skis to be performed.

When the grinding device 7 is arranged in accordance with FIG. 1, the side surfaces the respective ski edge 15 ground or sharpened. To the in the level of the ski surface 16, possibly at an angle to the skiing surface 16 To be able to grind the running edge surface, the plug must be repositioned Grinding device 7 take place, which is illustrated by Figures 3 and 4 will be.

FIG. 3 shows a concrete embodiment of a perspective view with the guiding and guiding ruler 3 supporting and Guide unit 5 with associated grinding device 7.

The sliding part 5 'of the support and guide unit 5 is positively on the guiding and guiding ruler 3 and carries over a suitable Rod guide 29 the carriage 6 for receiving the grinding device 7.

The grinding device 7 has an endless grinding belt in the manner already explained 10 which can be supported on a rocker 8 and via a Drive motor 27 is driven. The sanding belt level runs in Effective range perpendicular to that specified by the rod guide 29 Level.

The grinding device 7 is in its entirety on the axis receptacle 28 the carriage-fixed axis 18 is inserted and can pivot about this axis 18.

On both sides of the grinding belt 10 are immediately adjacent to the sanding belt spacer rollers 25, which are adjustable and serve to determine the permissible grinding depth.

Furthermore, an additional pair of spacer rollers 26 is provided, occupy an inactive position in the illustration shown in the figure.

In the arrangement of the grinding device 7 shown in FIG. 3, the lateral ones Surfaces of the respective ski edge 15 ground, the inclination of the grinding belt 10 is predetermined by the guiding and guiding ruler 3 and the effective area of the abrasive belt 10 conforms to the waist the skis 14 due to the displaceability of the carriage 6 and the can adjust pivoting storage on the axis 18.

Figure 4 shows the arrangement of Figure 3 with 90 ° pivoted Grinder 7. In this case, the grinder 7 with its axis holder 28 'plugged onto the axis 18', the axis receptacle 28 'being vertical to the axis receptacle 28.

In this positioning of the grinder 7 in the plane of Ski surface 16 located, possibly slightly inclined with respect to this ski surface running edge surfaces are sanded, being ensured must ensure that the surface is not ground, but rather that Grinding process is limited to the actual edge surface. To serve the spacer rollers 26 now in the active position, the during the grinding process, in which a pressure in the vertical direction is generated, rest on the side edge surface and due to more exact Make sure that the grinding process only applies to the Edge limited and no damage to the ski base can occur.

In this grinding process, too, the grinding plane is Guideline and leadership 3 given because any change in the The inclination of this guiding and guiding ruler 3 is directly proportional on the location of the effective grinding surface in the room, because it are between the guiding and guiding ruler 3 and the one defining the grinding plane Swing arm 8 of the grinder 7 exclusively has form-fitting exact guides intended.

It is thus created by the invention, a grinder that is simple is usable, the implementation faster and therefore more economical Grinding processes are made possible, and that is also easy for semi-skilled workers People is manageable because of the required settings for the setting wheels 4 depending on the ski are given in the table can and after the setting is inevitably the required perfect grinding process through a simple sliding and pressing process can be realized.

LIST OF REFERENCE NUMBERS

1

Carrier organ (side walls)

2

adjustment axis

3

Guideline and leadership

4

dials

5

Support and guide unit

5 '

sliding part

6

carriage

7

sharpener

8th

wing

9

swing adsorption

10

sanding belt

11

Ski resort

12

clamping elements

13

Bracket for clamping elements

14

ski

15

ski edge

16

Ski tread

17

arrows

18

axis

19

arrow

20

drive axle

21

swing area

22

Sanding belt inside

23

sliding clutch

24

scaling

25

Spacing rollers

26

Spacing rollers

27

engine

28

axle mount

28 '

axle mount

29

rod guide

30

curved support surface

Claims (12)

1. An apparatus for the grinding of surfaces extending at an angle to one another of the metallic edges (15) of winter sports equipment such as skis and snowboards by means of at least one grinding device (7) comprising a circulating endless grinding belt (10), characterised by
   a fixing and aligning unit (11, 12, 13), which extends at the end of as well as over the length of the respective piece of sports equipment or of the ski (14) and which engages it, for the positioning of the running surface (16) of the piece of sports equipment or of the ski (14) bounded at the side by the edges (15) in a pre-settable working plane;
   at least one leading and guiding rule (3) for the grinding device (7) arranged to the side of the piece of sports equipment or of the ski (14) and at least substantially parallel to the working plane and extending at least over the length of the region of the edges (15) of the piece of sports equipment or of the ski (14) to be ground;
   carrier members (1) which are provided at both ends and at which both the fixing and aligning unit (11, 13) and the lead and guide rules (3) are held;
   adjustment members (2, 4) for the local pivoting and/or twisting of the lead and guide rules (3) with respect to the working plane; and
   a form fitted sliding coupling (23) between the lead and guide rule (3) and a carrier and guidance unit (5) for the respective grinding device (7) whose circulating endless grinding belt (10) is supported in the grinding region by a rocker (8) which engages at one of the two mutually angled surfaces of the edge (15) to be ground due to the form fitted couplings (23, 18, 19) between the lead and guide rule (3) and the rocker (8), parallel to the respectively set plane of the lead and guide rule, which in particular extends in a curved fashion.
2. An apparatus in accordance with claim 1, characterised in that the carrier and guidance unit (5) is made at least in two parts and can be displaced using a slider part (5') in a form fitted manner along the lead and guide rule (3); and in that a carriage (6), which carries the grinding device (7) is displaceably guided perpendicular to the slider part (5') on the slider part (5').
3. An apparatus in accordance with claim 2, characterised in that the grinding device (7) with the carriage displaceable perpendicular to the lead and guide rule (3) is pivotable, and is also releasably mounted, at least about one axis.
4. An apparatus in accordance with claim 3, characterised in that the carriage (6) can be coupled via its pivot axle (18) to the grinding device (7) via a respective one of two axle mounts (28, 28') extending perpendicular to one another; and in that the grinding device (7) can be swapped between the axle mounts (28, 28') in dependence on the respective edge surfaces of the relevant edge (15) to be ground.
5. An apparatus in accordance with any one of the preceding claims, characterised in that the lead and guide rule (3) is arranged along a generatrix of a cylindrical setting axle (2) which is supported in the carrier members (1) forming side walls.
6. An apparatus in accordance with claim 5, characterised in that the lead and guide rule (3) is held by means of a plurality of setting wheels (4) arranged distributed over the length of the setting axle (2); and in that the setting wheels (4) can be turned and fixed independently of one another relative to the setting axle (2) in order to match the course of the lead and guide rule (3) to the course and to the inclination of the respective surface of the edge (15) to be ground.
7. An apparatus in accordance with claim 6, characterised in that scales (24) are provided between the setting wheels (4) and the stationary setting axle (2) in order to allow reproducible settings of the lead and guide rule (3).
8. An apparatus in accordance with claim 6 or claim 7, characterised in that the setting wheels (4) are arranged with a tight movement motion in annular grooves of the setting axle (2) such that the respective setting position is ensured by self-locking.
9. An apparatus in accordance with any one of the preceding claims, characterised in that spacer rollers (25, 26) are provided at the carriage (6) for the movement restriction of the carriage (6).
10. An apparatus in accordance with claim 9, characterised in that a first pair of adjustable spacer rollers (5) is provided at the carriage (6) for the pre-setting of the grinding depth and a second pair of spacer rollers (26) is provided at the carriage (6) which limits the grinding region in the plane of the ski running surface (16) to the edge surface.
11. An apparatus in accordance with claim 10, characterised in that the spacer rollers (26) bounding the grinding region can be pivoted into an inactive position.
12. An apparatus in accordance with any one of the preceding claims, characterised in that the rocker (8) forms a curved support surface (30) in the active region of the grinding belt (10).

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