1、Designation: F2949 18 An American National StandardStandard Specification forPole Vault Box Collars1This standard is issued under the fixed designation F2949; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revisio
2、n. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers minimum requirements ofsize, physical characteristics of materials, standard testingprocedures, labeling
3、 and identification of pole vault boxcollars.21.2 UnitsThe values stated in SI units are to be regardedas the standard. The values given in parentheses are forinformation only.1.3 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsib
4、ility of the user of this standard to establish appro-priate safety, health, and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.4 This international standard was developed in accor-dance with internationally recognized principles on standard-ization
5、 established in the Decision on Principles for theDevelopment of International Standards, Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:3F1292 Specification for Impact Attenuation of SurfacingMa
6、terials Within the Use Zone of Playground Equipment3. Terminology3.1 Definitions:3.1.1 box collar arms, nthe two parts of the pole vault boxcollar to the left and right of the pole vault box. If the boxcollar has box collar wings, the wings are part of the box collararms.3.1.2 box collar body, nthe
7、part of the pole vault boxcollar that pads the horizontal surfaces around the rim of thepole vault box and under the front buns.3.1.3 box collar cutout, nthe opening in the pole vault boxcollar above the pole vault box.3.1.4 box collar wing, nthe part of the box collar arm thatextends down the inner
8、 sidewall of the pole vault box. The boxcollar wings provide protection and help to hold the box collarin place.3.1.5 front buns, nthe parts of the pole vault landingsystem that pad the areas between the standard bases andaround the pole vault box.3.1.6 front opening, nthe opening at the front of th
9、e polevault box nearest the approach runway.3.1.7 pole bend cavity, nthe rearmost portion of the polevault box and box collar cutout in front of the strike platewhere the pole bends and rotates. The cavity is formed by thesidewalls and strike plate of the pole vault box, the rearmostpart of the pole
10、 slide, and inside edges of the box collar cutoutover the deepest part of the box where the pole slide meets thestrike plate.3.1.8 pole slide, nthe floor of the pole vault box that slantsdownward from its front boundary with the runway to its rearboundary with the back of the box. The tip of the vau
11、lting poleslides on the pole slide to the strike plate.3.1.9 pole slide opening, nthe space between the ends ofthe box collar arms at the front of the pole vault box collar andabove the intersection of the runway with the pole slide.3.1.10 pole vault box, nthe trough at the end of the polevault runw
12、ay. It has four sides: a downward sloping floor orpole slide, two sidewalls, and a strike plate. A vaulter directsthe lower end of the vaulting pole into the pole vault box. Theback wall of pole vault box stops the forward motion of the endof the pole while allowing the pole to rotate about its end
13、as thevaulter leaves the ground and completes a vault.3.1.11 pole vault box collar, na device used to offerimpact protection to pole vaulters in and around a pole vaultbox.1This specification is under the jurisdiction of ASTM Committee F08 on SportsEquipment, Playing Surfaces, and Facilities and is
14、the direct responsibility ofSubcommittee F08.67 on Pole Vault.Current edition approved April 1, 2018. Published May 2018. Originallyapproved in 2012. Last previous edition approved in 2012 as F2949 122. DOI:10.1520/F2949-18.2The users attention is called to the possibility that compliance with thiss
15、tandard may require use of an invention covered by patent rights.By publication of this standard, no position is taken with respect to the validityof any such claim(s) or of any patent rights in connection therewith. If a patentholder has filed a statement of willingness to grant a license under the
16、se rights onreasonable and nondiscriminatory terms and conditions to applicants desiring toobtain such a license, then details may be obtained from the standards developer.3For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For An
17、nual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United StatesThis international standard was developed in accordance with internationally
18、 recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.13.1.12 sidewalls, nthe left and right walls of the pole va
19、ultbox.3.1.13 strike plate, nthe back wall of the pole vault box;the stopboard.4. Performance Requirements4.1 The average peak acceleration calculated from the lasttwo of a series of three impact tests for each impact testlocation on the pole vault box collar shall not exceed 200 gwhen impact tested
20、 in accordance with Section 9.4.2 The average HIC score calculated from the last two of aseries of three impact tests for each impact test location on thepole vault box collar shall not exceed 1150 when impact testedin accordance with Section 9.5. Dimensions5.1 Minimum DimensionsA pole vault box col
21、lar shall beat least 122 cm (48 in.) wide and 146 cm (5712 in.) long. Thedistance from the rear edge of the box collar at its base to therear edge of the box collar cutout shall be at least 38 cm (15in.). At its uppermost surface, the box collar shall cover theupper edges of each sidewall of the box
22、 from the front of thebox where the pole slide meets the runway to a point on the topedge of the sidewall no less than 20 cm (8 in.) forward of thetop of the strike plate. The box collar arms shall extend forwardat least 108 cm (4212 in.) from the base of the rear edge of thebox collar cutout. (See
23、Figs. 1 and 2.)4,55.2 Maximum ThicknessA pole vault box collar shall beno more than 10 cm (4 in.) thick.5.3 Maximum Dimensions of Box Collar CutoutAt thebox collars uppermost surface in the vertical plane passingthrough the front edge of the pole slide, the horizontal distancefrom left to right acro
24、ss the box collar cutout shall be no morethan 58 cm (23 in.). At the horizontal plane of the runway, thehorizontal distance from left to right across the rear of the boxcollar cutout at the front of the bend cavity shall be no morethan 29 cm (1112 in.). The width across the base of the rearopening o
25、f the box collar cutout shall be no more than 42 cm(1612 in.). The width across the base of the front opening of thebox collar cutout shall be no more than 60 cm (24 in.). The boxcollar arms shall extend over the box beyond the upwardextended plane of the adjacent sidewall of the pole vault boxfrom
26、a point no more than 20 cm (8 in.) forward from the topedge of the strike plate to the front of the box where the poleslide meets the runway. (See Figs. 1 and 2.)5.4 Minimum Dimensions of Box Collar CutoutAt the boxcollars upper most surface in the vertical plane passingthrough the front edge of the
27、 pole slide, the horizontal distancefrom left to right across the box collar cutout shall be no lessthan 56 cm (22 in.). At and above the horizontal plane of therunway, the horizontal distance from left to right across the rearof the box collar cutout at the front of the bend cavity shall beno less
28、than 23 cm (9 in.). The width across the base of the rearopening of the box collar cutout shall be no less than 41 cm (16in). The width across the base of the front opening of the boxcollar cutout shall be no less than 58 cm (23 in.). The frontedge of the box collar that borders the strike plate sha
29、ll notextend forward past the upward extended plane of the strikeplate. The box collar arms shall not extend over the box beyondthe upward extended plane of the adjacent sidewall of the polevault box for a distance of at least 15 cm (6 in.) forward fromthe top edge of the strike plate. (See Figs. 1
30、and 2.)5.5 To allow the pole to bend undisturbed, the front face ofthe box collar edge that borders the strike plate shall be taperedaway from the box at an angle between 116 and 140 fromhorizontal to match or exceed the angle of the strike plate.5.6 To allow the pole to bend undisturbed, the inner
31、faces ofthe box collar arms that border the sidewalls shall be taperedaway from the box at an angle between 124 and 140 fromhorizontal to match or exceed the angle of the sidewalls. Thistaper shall extend forward along the side of the pole bendcavity the full length of the pole bend cavity. (See Fig
32、s. 1 and2.)5.7 The body of the box collar shall extend rearward at least30 cm (12 in.) under the front buns of the pole vault landingsystem.5.8 The body of the box collar shall extend laterally at least15 cm (6 in.) under the front buns of the pole vault landingsystem.5.9 The box collar wings shall
33、be no more than 10 cm (4 in.)thick on the upper sidewalls of the box. The box collar wingsshall extend no closer towards rear of the box than 15 cm (6in.) from the strike plate. The horizontal distance between thewings of the box collar arms shall be no less than 15 cm (6 in.)when measured at the fr
34、ont edge of the bend cavity. Theminimum horizontal distance between the wings of the boxcollar arms shall increase linearly from this point forward tothe front opening of the box, where the pole slide meets therunway and where the opening between at the base of the boxcollar arms shall be no less th
35、an 58 cm (23 in.). The box collarwings shall allow room for a pole to slide freely down theinterior edges of the pole vault box where the sidewalls meetthe pole slide. The box collar wings shall extend down thesidewalls of the box to a point no lower than 10 cm (4 in.) fromthe pole slide at the fron
36、t edge of bend cavity. The minimumdistance between the lowermost edges of the wings of the boxcollar arms and the pole slide shall decrease linearly from thispoint forward to the front opening of the box, where the poleslide meets the runway and where the distance between thelower surface of the inn
37、er most edges of the box collar armsand the pole slide shall be no less than 3 cm (1 in.). (See Figs.1 and 2.)5.10 The box collar wings shall allow improperly plantedpoles to slide forward and downward into the bottom of the4ASTM has been informed that a pole vault box collar manufactured to thespec
38、ifications listed in Fig. 1 may be covered by a patent. ASTM is unable to verifythis determination. Information regarding the alleged patent or the identification ofan alternative(s) to the alleged patented item should be sent to ASTM InternationalHeadquarters. Your comments will receive careful con
39、sideration at a meeting of theresponsible technical committee, which you may attend.5ASTM International takes no position respecting the validity of any patentrights asserted in connection with any item mentioned in this standard. Users of thisstandard are expressly advised that determination of the
40、 validity of any such patentrights, and the risk of infringement of such rights, are entirely their ownresponsibility.F2949 182plant box. The wings shall conform to the inner walls of theplant box so as to provide protection and yet guide a poorlyplanted pole to the base of the strike plate at the b
41、ottom-rear ofthe box.5.11 The bend cavity must allow the pole to bend into thecorners formed by the sidewalls and the strike plate, andbeyond. Some poles bend in a circular rotation back toward therunway.5.12 The pole vault box collar shall be fixed to the groundor the inner walls during use.6. Sign
42、ificance and Use6.1 The dynamic data obtained with the procedures given inthis specification measure the cushioning properties of the polevault landing systems tested.NOTE 1Minimum dimensions shown unless otherwise noted.FIG. 1 Plan View of Pole Vault Box CollarF2949 1836.2 The dimensions of the pol
43、e vault box collar are specifiedwith respect to the dimensions of the pole vault box and thekinematics of typical pole movement in the pole vault box.7. Test Apparatus7.1 Impact Test SystemThe test apparatus described inSection 8 of Specification F1292 is used.Afree-fall impact testsystem shall be u
44、sed.7.2 MissileThe missile used is described in section 8.2.1of Specification F1292.8. Conditioning8.1 Pole vault box collars shall be tested under ambientconditions that match those of intended use.9. Impact Testing Procedures9.1 The pole vault box collar shall be tested using theimpact testing pro
45、cedures for Installed Surface PerformanceTest (Field Test) of Specification F1292 with the followingconditions:9.1.1 If the pole vault box collar is tested at its use site, itshall be tested in situ but with the front buns and any otherencroaching components of the pole vault landing systemremoved s
46、o that the pole vault box collar only touches the polevault box and the surfaces on which the box collar rests.9.1.2 If the pole vault box collar is tested at other than itsuse site, it shall be tested while resting on a flat rigid surface.9.1.3 The impacting missile shall be dropped from a heightof
47、 3.80 m (12 ft. 512 in.) above the impact test location. The3.80 m (12 ft. 512 in.) drop height is measured from the uppersurface of the pole vault box collar at the impact test locationto the lowest point on the impacting missile.9.1.4 Three consecutive impact tests shall be performed ateach impact
48、 test location. The interval between impact testsshall be 1.5 6 0.5 min. Calculate the average g-max and HICscore for each impact test location by averaging results fromthe second and third impacts.9.1.5 Impact tests shall be completed on the pole vault boxcollar at the following four locations in a
49、ny order:9.1.5.1 On the centerline of the box collar 13 cm (5 in.)behind the rear edge of the box collar cutout;9.1.5.2 On either box collar arm, 69 cm (27 in.) behind thefront edge of the box collar arm and midway between thelateral edge of the box collar arm and its interior edge;9.1.5.3 On either box collar wing, 10 cm (4 in.) forward ofthe rearmost edge of the box collar wing and midway betweenNOTE 1Minimum dimensions shown unless otherwise noted.FIG. 2 Cross-section View of Pole Vault Box Collar Along Centerline of RunwayF2949 184the upper
