1、Designation: F2949 121An 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.1NOTEEditorially added footnotes regarding patent rights in August 2013.1. Scope1.1 This specification covers minimum requirements ofsize, phy
3、sical characteristics of materials, standard testingprocedures, labeling and identification of pole vault boxcollars.21.2 UnitsThe values stated in either SI units or inch-pound units are to be regarded separately as standard. Thevalues stated in each system may not be exact equivalents;therefore, e
4、ach system shall be used independently of the other.Combining values from the two systems may result in non-conformance with the standard.1.3 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to
5、establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:3F1292 Specification for Impact Attenuation of SurfacingMaterials Within the Use Zone of Playground Equipment3. Terminology3.1 Definiti
6、ons: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 part of the pole vault boxcollar that pads the horizontal surfaces around the
7、 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 sidewall of the pole vault box. The boxcollar wings provide protection and h
8、elp 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 the polevault box nearest the approach runway.3.1.7 pole bend cavity, nthe rear
9、most 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 slide, and inside edges of the box collar cutoutover the deepest part of the
10、 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 vaulting poleslides on the pole slide to the strike plate.3.1.9 pole slide openi
11、ng, 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 runway. It has four sides: a downward sloping floor orpole slide, two sidewalls,
12、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 as thevaulter leaves the ground and completes a vault.3.1.11 pole vault box c
13、ollar, na device used to offerimpact protection to pole vaulters in and around a pole vaultbox.3.1.12 sidewalls, nthe left and right walls of the pole vaultbox.1This specification is under the jurisdiction of ASTM Committee F08 on SportsEquipment and Facilities and is the direct responsibility of Su
14、bcommittee F08.67 onPole Vault.Current edition approved Sept. 1, 2012. Published October 2012. DOI: 10.1520/F2949-12E01.2The users attention is called to the possibility that compliance with thisstandard may require use of an invention covered by patent rights.By publication of this standard, no pos
15、ition 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 these rights onreasonable and nondiscriminatory terms and conditions to applicants desiring toobtain such a
16、 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 Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM w
17、ebsite.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States13.1.13 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 thr
18、ee impact tests for each impact testlocation on the pole vault box collar shall not exceed 200 gwhen impact tested 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
19、exceed 1150 when impact testedin accordance with Section 9.5. Dimensions5.1 Minimum DimensionsA pole vault box collar 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 le
20、ast 38 cm (15in.). At its uppermost surface, the box collar shall cover theupper edges of each sidewall of the box 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
21、 arms shall extend forwardat least 108 cm (4212 in.) from the base of the rear edge of thebox collar cutout. (See 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
22、the vertical plane passingthrough the front edge of the pole slide, the horizontal distancefrom left to right across 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
23、the front of the bend cavity shall be no morethan 29 cm (1112 in.). The width across the base of the rearopening of 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
24、arms shall extend over the box beyond the upwardextended plane of the adjacent sidewall of the pole vault boxfrom 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 o
25、f Box Collar CutoutAt the boxcollars upper most surface in the vertical plane passingthrough the front edge of the 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 di
26、stance from left to right across the rearof the box collar cutout at the front of the bend cavity shall beno less 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 boxcol
27、lar cutout shall be no less than 58 cm (23 in.). The frontedge of the box collar that borders the strike plate shall 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
28、polevault box for a distance of at least 15 cm (6 in.) forward fromthe top edge of the strike plate. (See Figs. 1 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 105 and 120 deg
29、reesfrom horizontal to match the angle of the strike plate.5.6 To allow the pole to bend undisturbed, the inner faces ofthe box collar arms that border the sidewalls shall be taperedaway from the box at an angle between 105 and 120 degreesfrom horizontal to match the angle of the sidewalls. This tap
30、ershall extend forward along the side of the pole bend cavity thefull length of the pole bend cavity. (See Figs. 1 and 2.)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 later
31、ally at least15 cm (6 in.) under the front buns of the pole vault landingsystem.5.9 The box collar wings shall 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 horizon
32、tal distance between thewings of the box collar arms shall be no less than 15 cm (6 in.)when measured at the front 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
33、 pole slide meets therunway and where the opening between at the base of the boxcollar arms shall be no less than 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
34、shall extend down thesidewalls of the box to a point no lower than 10 cm (4 in.) fromthe pole slide at the front 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 open
35、ing of the box, where the poleslide meets the runway and where the distance between thelower surface of the inner 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
36、and downward into the bottom of theplant box. The wings shall conform to the inner walls of the4ASTM has been informed that a pole vault box collar manufactured to thespecifications listed in Fig. 1 may be covered by a patent. ASTM is unable to verifythis determination. Information regarding the all
37、eged patent or the identification ofan alternative(s) to the alleged patented item should be sent to ASTM InternationalHeadquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend.5ASTM International takes no position respect
38、ing 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 validity of any such patentrights, and the risk of infringement of such rights, are entirely their ownresponsibility.F2949 1212p
39、lant box so as to provide protection and yet guide a poorlyplanted pole to the base of the strike plate at the bottom-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 t
40、oward therunway.5.12 The pole vault box collar shall be fixed to the groundor the inner walls during use.6. Significance and Use6.1 The dynamic data obtained with the procedures given inthis specification measure the cushioning properties of the polevault landing systems tested.6.2 The dimensions of
41、 the pole 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.NOTE 1Minimum dimensions shown unless otherwise noted.FIG. 1 Plan View of Pole Vault Box CollarF2949 12137. Test Apparatus7.1 Impact Test Syst
42、emThe test apparatus described inSection 8 of ASTM F1292 Standard Specification for ImpactAttenuation of Surfacing Materials within the Use Zone ofPlayground Equipment is used. A free-fall impact test systemshall be used.7.2 MissileThe missile used is described in section 8.2.1of ASTM F1292 Standard
43、 Specification for Impact Attenuationof Surfacing Materials within the Use Zone of PlaygroundEquipment.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 th
44、eimpact testing procedures for Installed Surface PerformanceTest (Field Test) of ASTM F1292 Standard Specification forImpactAttenuation of Surfacing Materials within the Use Zoneof Playground Equipment with the following conditions:9.1.1 If the pole vault box collar is tested at its use site, itshal
45、l be tested in situ but with the front buns and any otherencroaching components of the pole vault landing systemremoved so 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 si
46、te, it shall be tested while resting on a flat rigid surface.9.1.3 The impacting missile shall be dropped from a heightof 3.80 m (12 ft. 5 in.) above the impact test location. The 3.80m (12 ft. 512 in.) drop height is measured from the uppersurface of the pole vault box collar at the impact test loc
47、ationto the lowest point on the impacting missile.9.1.4 Three consecutive impact tests shall be performed ateach impact 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 a
48、nd third impacts.9.1.5 Impact tests shall be completed on the pole vault boxcollar at the following four locations in any 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;NOTE 1Minimum dimensions shown unless otherwise noted.FIG. 2 Cross-se
49、ction View of Pole Vault Box Collar Along Centerline of RunwayF2949 12149.1.5.2 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 betweenthe upper and lower borders of the wing. To conduct thisimpact test, the box collar must be removed from the pole vaultbox and placed on a flat rigid surface;9.1.5.4 And, on a location selec
