WO1979000207A1 - Dispositif d'essai de skis de fond - Google Patents

Dispositif d'essai de skis de fond Download PDF

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Publication number
WO1979000207A1
WO1979000207A1 PCT/SE1978/000059 SE7800059W WO7900207A1 WO 1979000207 A1 WO1979000207 A1 WO 1979000207A1 SE 7800059 W SE7800059 W SE 7800059W WO 7900207 A1 WO7900207 A1 WO 7900207A1
Authority
WO
WIPO (PCT)
Prior art keywords
skis
bars
ski
runner
tested
Prior art date
Application number
PCT/SE1978/000059
Other languages
English (en)
Inventor
S Norberg
Original Assignee
S Norberg
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by S Norberg filed Critical S Norberg
Priority to DE19782857082 priority Critical patent/DE2857082A1/de
Publication of WO1979000207A1 publication Critical patent/WO1979000207A1/fr

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
    • G01M5/0041—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining deflection or stress
    • G01M5/005—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining deflection or stress by means of external apparatus, e.g. test benches or portable test systems
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0078—Testing material properties on manufactured objects
    • G01N33/008—Sport articles, e.g. balls, skis or rackets

Definitions

  • This invention relates to a method and a device for testing cross-country skis.
  • the span pressure may vary from 20 to 120 kg for the same ski length of the same manufacture. Due to differences in the span pressure the skis will have different properties for ski runners of different weight.
  • ski-wax will be quickly worn off under the hold.
  • the method generally used at present to test the span pressure consists of "pressing"on the skis manually.
  • this method provides an uncertain result, which is unsatisfactory for the ski runner.
  • a device according to the invention which comprises two bars 1 (one hidden in the figure), which can consist of U-profiles of e.g. aluminium.
  • Each bar 1 is provided with a number of microswitches 2, which are uniformly spaced along the bar 1.
  • Each microswitch 2 is connected to a lamp 4 on a control board 5 via a cable 3.
  • the lamps 4 are preferably arranged in a row after each other (see Fig.).
  • the microswit ches 2 function e . g . in such a way that when a ski is depressed to contact with a microswitch a power circuit will be closed, the lamp 4 on the panel 5 connected with the microswitch 2 being lit.
  • the bars 1 are also provided with a device for measuring the span height of the skis being tested.
  • This device e.g. consists of a potentiometer 6, which is located about in the middle of the bar in its longitudinal direction.
  • the potentiometer 6 is also via the cable 3 connected to an indication means on the board 5.
  • the indication means is a pointer instrument 7, which thus indicates the height of the span directly, e.g. in mm.
  • the person 9 then steps onto the skis 8 and places his feet in the positions of the skis which will be entered in running. At the person's 9 load on the skis 8 they will be depressed to contact with the bars 1 in their outer portions as seen in the longitudinal direction, the microswitches 2 arranged in the bars being actuated to close the associated power circuit and to light the corresponding lamp 4 on the board 5.
  • the number of lamps not being alit it is simple to calculate the length of the span when the constant distance between the microswitches is known. Information about the position of the span in the longitudinal direction of the ski is also obtained by. observing which lamps are not alit. Then it is very easy to mark the extension of the span on the skis, which is important information for applying ski-wax for hold and glide.
  • the height of the span in loaded position of the skis 8 is read directly on the pointer instrument 7.
  • the interpretation of the information obtained can be facilitated by using keys to a code of different types, which can preferably be arranged on the board 5.
  • the board 5 is placed on a stand (not shown in the figure) in order to obtain a suitable reading height for the person testing the skis and also for the seller of the skis.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Food Science & Technology (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

Dispositif d'essai de skis de fond. La rigidite d'un ski de fond varie en fonction du poids du skieur ainsi que de la technique de ce dernier. L'objet de la presente invention est de fournir un dispositif permettant d'essayer une paire de skis de fond d'une maniere simple. Le dispositif comprend une paire de barres (1), sur lesquelles on place la paire de skis (8) a essayer. Le dispositif comprend aussi des moyens de sonde (2, 6) pourvus dans lesdites barres (1) et relies a un tableau de controle (5) Lorsque le skieur pose ses pieds sur les skis (8), ils sont presses contre les barres (1), et les moyens de sonde (2, 6) enregistrent la portee des skis (8) sur les barres (1). Ceci produit des informations sur le tableau de controle (5) quant a la longueur, la hauteur et la position de la portee entre les deux points d'appui a vide, dans le sens longitudinal du ski. Au moyen de cette information on peut determiner rapidement et simplement si les skis essayes conviennent au skieur.
PCT/SE1978/000059 1977-10-13 1978-10-12 Dispositif d'essai de skis de fond WO1979000207A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19782857082 DE2857082A1 (de) 1977-10-13 1978-10-12 A device for testing cross-country skis

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE7711519A SE7711519L (sv) 1977-10-13 1977-10-13 Skidprovare
SE7711519 1977-10-13

Publications (1)

Publication Number Publication Date
WO1979000207A1 true WO1979000207A1 (fr) 1979-04-19

Family

ID=20332558

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1978/000059 WO1979000207A1 (fr) 1977-10-13 1978-10-12 Dispositif d'essai de skis de fond

Country Status (3)

Country Link
IT (1) IT1106438B (fr)
SE (1) SE7711519L (fr)
WO (1) WO1979000207A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0079482A1 (fr) * 1981-10-26 1983-05-25 Alois Hoch Appareil pour mesurer l'élasticité des skis de course de fond
FR2539866A1 (fr) * 1983-01-26 1984-07-27 Pouget Robert Instrument portatif de mesurage du jeu residuel des attaches elastiques " nabla " de serrage des rails de chemin de fer
WO2006132591A1 (fr) * 2005-06-08 2006-12-14 Vendolocus Ab Dispositif et procede de mesure permettant de mesurer la courbure d'un corps allonge
US7260545B1 (en) * 2000-11-15 2007-08-21 Alpina Sports Corporation System and method for selection of cross-country skis
NO340836B1 (no) * 2015-11-30 2017-06-26 Rottefella As Skimåler
US10677666B2 (en) 2015-12-09 2020-06-09 Molibso Entwicklungs-Und Vertriebs Gmbh Apparatus for testing skis or snowboards

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3760636A (en) * 1970-11-27 1973-09-25 Measuring Process Control Ltd Testing and grading of timber
DE2512279A1 (de) * 1974-04-03 1975-10-16 Alfred Staeger Ski-testgeraet

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3760636A (en) * 1970-11-27 1973-09-25 Measuring Process Control Ltd Testing and grading of timber
DE2512279A1 (de) * 1974-04-03 1975-10-16 Alfred Staeger Ski-testgeraet

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0079482A1 (fr) * 1981-10-26 1983-05-25 Alois Hoch Appareil pour mesurer l'élasticité des skis de course de fond
FR2539866A1 (fr) * 1983-01-26 1984-07-27 Pouget Robert Instrument portatif de mesurage du jeu residuel des attaches elastiques " nabla " de serrage des rails de chemin de fer
US7260545B1 (en) * 2000-11-15 2007-08-21 Alpina Sports Corporation System and method for selection of cross-country skis
WO2006132591A1 (fr) * 2005-06-08 2006-12-14 Vendolocus Ab Dispositif et procede de mesure permettant de mesurer la courbure d'un corps allonge
US7610158B2 (en) * 2005-06-08 2009-10-27 Vendolocus Ab Measuring device and method for measuring the arching of an elongate body
NO340836B1 (no) * 2015-11-30 2017-06-26 Rottefella As Skimåler
US10677666B2 (en) 2015-12-09 2020-06-09 Molibso Entwicklungs-Und Vertriebs Gmbh Apparatus for testing skis or snowboards

Also Published As

Publication number Publication date
SE7711519L (sv) 1979-04-14
IT7851504A0 (it) 1978-10-13
IT1106438B (it) 1985-11-11

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