DE102004003515A1 - Universal inrun track for ski jump comprises of right sliding section, left sliding section and central section having accident-proof smooth surfaces without hole or slot screw connection edges - Google Patents

Abstract

The inrun track comprises of a right sliding section (R), a left sliding section (L) and a central section (M) having accident-proof smooth surfaces without hole or slot screw connection edges. The inrun track also includes an asymmetrical burl arrangement, an airless water spraying portion for humidification of the ski sliding surface, and a deicer.

Description

Starting tracks of the previous type, see DE 42 07 412 or later style like DE 200 11 567 U1 , are only partially usable at any time. Above all, they no longer comply with the current, required safety rules.

inruns Although modern design also have profile pieces made of metal with anti-friction coating, but are by their spherical Pimples so stressful that the waxed sliding surface of the skis peeled and the wax builds up before the pimples. The consequences are one to the jump constantly Growing Slip resistance, the ski can be damaged and the wax upstream affected the sliding values of the re-jumper. That's in sports terms a large Disadvantage, since the own sliding values are falsified and by the ever increasing sliding resistance a controlled jump almost impossible is. The technical disadvantage of today's tracks is that all no surfaces form, the hole.- slot.- Aufkantungs.- and screw-free are. This fact leads In case of a fall always to injuries. All clubs are urged by the technical commissars to eliminate this danger.

Also the equipment is ineffective and no longer the same Conditions. Since today, year round is cracked snow in the transitional months while a competition is no longer sufficient. The track must thaw and de-icing, if they should also be usable in winter in any area.

The still used shingle irrigation, out of the middle, was for flat textured pimples have been developed. She is at today's high Floating points completely useless, the water runs up down the shingle floor and reach the increased glide points not to improve the floating value. What is worse, the jumper lands on the landing mats with a dry sliding surface, which can quickly lead to a fall for inexperienced jumpers. the reason for this is the high frictional resistance, because even on the mats improved the water the floating value. Optimal for a jumper is, though at start-up and landing constant sliding values and the same Sliding values prevail.

The is called, today's starting signs are with mistakes, disadvantages and dangers afflicted. You can no longer meet the required standard.

These Invention eliminates all the disadvantages and meets today's requirements, athletic as well as in technical terms and forms a injury-free all-weather Inrun track, which in fact is ready at any time and in any area is.

The track consists of three elements RLM, which together give each other 50cm double track length Abg. S1 / A. Due to the special shape of the track element this can at the outer edges under the previously screwed clamping distance bracket ( 1 ) and then at the inner edge by means of four screws ( 2 ) made of V2A and four plastic washers ( 3 ) on the subsoil ( 4 ) are bolted S1 / B. The temples ( 1 ) in Abg. S1 / B are at the same time spacers and lock the two mirror-image track elements R and L at the specified track spacing (X) Abg. S1 / A. The middle element M is resilient and, after the attachment of R / L with the four Abkantnasen ( 5 ) into the retaining slots ( 6 ) from the elements R / L springed off. S1 / B. At 50m start-up length, 100 such segments (V), lying one behind the other, would give an absolutely flat, injury-free track surface. Due to the fact that even the track itself in the elements R and L, as explained later, does not have any slots or holes, the entire inrun track is in accordance with today's requirements, without injury Abg. S1 / C.

To the so-called pimples ( 7 ) in the slider R u. L three requirements are made, a good sliding behavior, no creeping damage to the Skigleitfläche and no influence by Gleitmittelpeicherung (Z) in front of the knob Abg. S2 / 0

The newly developed pimples ( 8th ) in the track element R / L are in the longitudinal axis (Q) and in the transverse axis (q) different elliptical Abg. S3 / AB. The longitudinal axis (Q) lies in the sliding direction and possesses the large ellipse in order to achieve as flat as possible a long drawn angle of attack (a) between the sliding point of the nub (FIG. 8th ) and the sliding surface of the ski ( 9 ) to have exhaust. S3 / D. The transverse axis (q) of the knob ( 8th ) has a small ellipse, on which always slightly pushing lubricant (Z) to the inactive side to be pressed off. S3 / C. This knob ( 8th ) has an optimal point gliding, is skischonend by the area Anstellwinckel (a) and prevents a Gieitmittelablagerung before the knob. The pimples ( 8th ) with an asymmetrical symmetry in the ground surface ( 10 ) of the track element is pressed uplifting. S4 / A. The asymmetric arrangement results in a wider use of the ski gliding surface and ensures that the Skigleitpräparation until to take off remains effective. Abg. S4 / A. The resulting uneven forces are neutralized by the associated symmetry. 4 / A. To ensure the Springer a start-up harmony is track element R with nub picture, mirror image of track element L Abg. S4 / A. This power neutrality becomes more and more important as the new jumps are all built with a dynammetry (force measurement in 3D) in the final part of the run-up.

The Tracks are measured separately from each other.

The trace element R u L has at the three track sides ( 10 - 11 - 12 ) No slots or holes, as the newly developed equipment does not require this. S1 / AB. The side surfaces ( 11 - 12 ) are slightly angled outwards to avoid surface friction to the ski-side edge.

The required for injury safety middle element M forms after the springing a covered cavity, which serves as a supply channel for the equipment serves Abg. S1 / A.

The Equipment consists of a wetting system for the Skigleitfläche and a defrost and defrost system.

The wetting system consists of the main supply line ( 13 ) the transverse distributors ( 14 ) and under the impact of two track elements R / L lying spray tube ( 15 ) Off. S5 / A. The spray tube ( 15 ) acts over the entire width of the track R / L and thus moistens the entire sliding surface of the ski s ( 9 ) with water Abg. S5 / B. Through the wet ski gliding surface ( 9 ) the sliding resistance between skis and nubs ( 8th ) significantly reduces and guarantees an intended, high start-up speed. With this effect, the athletic disadvantage between jumpers is eliminated, which previously achieved different start-up speeds in the sun or rain in a competition and thus could jump only unequal widths. This wetting system can be used as a standard system (basic use), or as a simulation system ie basically dry is started and only at the jump is a spray in action to the Springer a wet Skigleitfläche ( 9 ) for the landing. If rain is expected during the competition, or if it has stopped raining, switch to the condition equality, the system. The scrubbing system is designed to empty itself immediately after shutdown to prevent frost damage.

The Defrosting and defrosting system is able to within the shortest possible time Time to make the totally snowy or icy inrun track usable.

The Plant operates in the high temperature range of 85 ° C and heats the entire area at very short notice Substructure, the track element R / L, the middle element M and the supply shafts. Abg. S6 / A

Because the high temperature cables ( 16 ) with the squeezed on Kaltteitern ( 17 ) to the main supply cable ( 18 ) are distanced, the system can be operated. It is adjustable, so that it can be adjusted according to the external conditions. The maximum performance; at -20 ° c, the entire starter body can be brought to a temperature of + 22 ° c and after defrosting to + 6 ° c regulated. A corresponding tax and control technology is part of their equipment.

1

Klemmdistanzbüge

2

screw

3

plastic washers

4

underbody

5

Abkantnase

6

retaining slots

7

old ball knobs

8th

new ellipse Appen

9

Skigleitfläche

10

floor area

11

side surface

12

side surface

13

Main supply line

14

Querverteiler

15

lance

16

High temperature cables

17

PTC

18

Main supply cable

R

Slide right

L

Slide Left

M

middle element

X

track pitch

Y

segment

Z

Lubricant wax

Q

knobs longitudinal axis

p

Knobs transverse axis

Claims (5)

Claim characterized by an accident-proof smooth Surface, without holes-slots-screwed edges or other protruding parts. Claim characterized by elliptical elevations in the track bottom, as Gleitpunktnoppen for the Jumping skis. Claim characterized by a nub arrangement in one asymmetric symmetry. Claim characterized by a water spraying system for moistening the ski gliding area. Claim characterized by a defrosting and defrosting system.