1、Designation: F473 09 (Reapproved 2017)Standard Specification forBinding Mounting Area Dimensions on Alpine Skis andBindings1This standard is issued under the fixed designation F473; the number immediately following the designation indicates the year of originaladoption or, in the case of revision, t
2、he year of last revision. A number in parentheses indicates the year of last reapproval. A superscriptepsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers2dimensions for bindingmounting areas for alpine skis and mounting-related dimen-s
3、ions on alpine ski bindings as part of an interface (“ski-binding-boot”) system, in order to optimize the compatibilityof the functional elements of the system. It contains dataneeded for the manufacture of alpine skis, and for manufac-turers of alpine ski bindings, specifically with respect to theb
4、inding mounting area. This specification is applicable toalpine skis of the following chord lengths (see TerminologyF472 for the definition of chord length, LN):Group 1: LN$ 1700 mmGroup 2: 1400 mm # LN 1700 mmGroup 3: 1000 mm # LN 1400 mmGroup 4: 750 mm # LN 1000 mm1.2 The values stated in SI units
5、 are to be regarded asstandard. No other units of measurement are included in thisstandard.1.3 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standar
6、ds, Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:3F472 Terminology for Geometry of Alpine SkisF944 Specification for Properties of Adult Alpine Ski Boots(Withdrawn 2004)42.2 ISO Standard:58364
7、Alpine Skis and BindingsBinding Mounting AreaRequirements and Test Methods3. Terminology3.1 Definitions:3.1.1 binding mountingall the connections between theparts of the binding and the ski, especially those designed totransmit forces between binding and ski and that fulfill theminimum strength requ
8、irements determined for the function ofthe binding.3.1.2 binding mounting areathat portion of the top surfaceof the ski that is intended for mounting bindings. The stan-dardized binding mounting area establishes the area on the skiwithin which the entire diameter of binding screws should beplaced.4.
9、 Significance and Use4.1 This specification defines the area wherein parts of thebinding may be mounted. Standard dimensions and location fora binding mounting area enable a ski designer to locatereinforcing elements within this area. Standard dimensions alsoenable the binding designer to determine
10、all interface dimen-sions for binding unit size, screw locations, etc. Bindings andskis built in compliance with this specification are compatible.This specification does not apply to any bindings or skismanufactured prior to Jan. 1, 1979.5. Specifications of Binding Mounting Area5.1 TolerancesUnles
11、s otherwise indicated, the toleranceon all dimensions specified is 61 mm.5.2 Indication of Mounting Point:5.2.1 The ski manufacturer shall be required to put a clearlyvisible mark at least on the left side or top surface, or both, ofthe ski, up to the left outer edge. This line corresponds with them
12、ark on the side surface of the boot sole, or when noted, to theboot sole toe location (see Specification F944).1This specification is under the jurisdiction of ASTM Committee F27 on Snowand Water Sports and is the direct responsibility of Subcommittee F27.30 on Skiingand Snowboarding Equipment.Curre
13、nt edition approved Sept. 1, 2017. Published December 2017. Originallyapproved in 1976. Last previous edition approved in 2009 as F473 09. DOI:10.1520/F0473-09R17.2This specification is meant to conform in all significant aspects to thespecification for binding mounting area for alpine skis as set f
14、orth in ISO 8364.3For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.4The last approved version of this historica
15、l standard is referenced onwww.astm.org.5Available from American National Standards Institute, 11 W. 42nd St., 13thFloor, New York, NY 10036.Available from American National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY 10036.Copyright ASTM International, 100 Barr Harbor Drive,
16、PO Box C700, West Conshohocken, PA 19428-2959. United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recommendations issued
17、 by the World Trade Organization Technical Barriers to Trade (TBT) Committee.15.2.2 The location of the mark on the ski shall be deter-mined by the ski manufacturer in accordance with establishedtest procedures and results.5.3 Length of Binding Mounting Area (see Fig. 1)Thelength of the binding moun
18、ting area forwards and backwardsfrom the midsole mounting point shall be as follows:Group 1: 275 mmGroup 2: 240 mmGroup 3: 210 mmGroup 4: 190 mmor about the boot sole toe location shall be as follows:Forward RearwardGroup 1: 110 mm 440 mmGroup 2: 100 mm 380 mmGroup 3: 90 mm 330 mmGroup 4: 80 mm 300
19、mm5.4 Width of Binding Mounting Area (see Fig. 1)Theminimum width of the binding mounting area, symmetricalabout the longitudinal axis of the ski, shall be as follows:Groups 1 and 2: 50 mmGroups 3 and 4: 48 mm5.5 Center-to-Center Distances for Binding MountingScrews:5.5.1 Maximum Center-to-Center Di
20、stance:5.5.1.1 The maximum center-to-center distance perpendicu-lar to the center line of the ski shall be such that the screws arelocated entirely within the binding mounting area.5.5.1.2 If ski binding screws of nominal diameter 5.5 mmare used, the maximum center-to-center distance of the bindingm
21、ounting screws shall be as follows:Groups 1 and 2: 42.5 mmGroups 3 and 4: 40.5 mm5.5.2 Minimum Center-to-Center Distance:5.5.2.1 For screws that are used for mounting of parts of thebinding and retention devices, the center-to-center distanceshall not be less than as follows:Groups 1 and 2: 25 mm in
22、 the longitudinal direction;20 mm in all other directionsGroups 3 and 4: 20 mm in the longitudinal direction;15 mm in all other directions5.6 Surface of the Binding Mounting Area:5.6.1 Transverse Profile (Convexity) of the Surface:5.6.1.1 Deviations of straightness of the transverse profilefrom a fl
23、at profile are only permissible in the form of a constantcurve across the width of the mounting area. The tolerance onstraightness within this area is given in Fig. 2.5.6.1.2 There shall be no step in the profile within a width ofthe following, symmetrical to the longitudinal axis.Groups 1 and 2: 55
24、 mmGroups 3 and 4: 50 mmOutside the binding mounting area, steps are allowed onlyinto the body of the ski.5.6.2 Longitudinal Profile of the SurfaceDeviations fromstraightness of the longitudinal profile from a flat profile areonly permissible in the form of a constant convex curve in thelength of th
25、e mounting area. The tolerance on straightness inthis area, with the ski base pressed against a flat surface, is (seeFig. 1) as follows:Groups 1 and 2: 5 mmGroups 3 and 4: 4 mm5.6.3 Side WallsSide walls shall be designed so thatbinding mounting with commonly used mounting devices isensured. The basi
26、c requirement is that the clamping elementsof the mounting device reach at least to the running surface ofthe ski.5.7 Minimum Thickness of Binding Mounting Area Withinthe total binding mounting area, a drill hole of depth d (see Fig.3) shall be available as follows, so as to accommodate screwpenetra
27、tions of 8 6 0.5 mm and 6 mm 6 0.5 mm, respectively.Groups 1 and 2: 9.5 mmGroups 3 and 4: 7.5 mm6. Specifications of the Binding6.1 The hole-pattern shall be in accordance with the geo-metrical requirements of 5.3 5.5.6.2 In order to ensure the required penetration depth, themanufacturer of the bind
28、ing shall select a suitable length ofbinding screw so that after binding mounting the shaft of thescrew penetrates the ski (see Fig. 3) to a depth of the following:Groups 1 and 2: d =8mm0.5mmGroups 3 and 4: d =6mm0.5mm6.3 To avoid damaging the top layers (causing damage tothe adhesive bond) the diam
29、eter of the mounting plate holes orcountersink facing the ski shall not exceed 7 mm. Thecountersink drill shall be designed in such a way that itspenetration into the top surface of the ski does not exceed 0.6mm.7. Keywords7.1 alpine skis; mounting area; screw depth; ski bindings;ski profileNOTE 1To
30、lerance in millimetres.FIG. 1 Longitudinal ProfileF473 09 (2017)2NOTE 1Tolerance in millimetres.FIG. 2 Transverse ProfileFIG. 3 Penetration Depth, d , and Drill Hole Depth, d , of Mounting ScrewsF473 09 (2017)3ASTM International takes no position respecting the validity of any patent rights asserted
31、 in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the
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33、areful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM Internati
34、onal, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org). Permission rights to photocopy the standard may also be secured from the Copyright Clearance Center, 222Rosewood Drive, Danvers, MA 01923, Tel: (978) 646-2600; http:/ 09 (2017)4
