ASTM F2949-2012 Standard Specification for Pole Vault Box Collars《撑杆跳箱项圈的标准规范》.pdf

1、Designation: F2949 12Standard 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 revision. A number in parentheses ind

2、icates 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 and identification of pole va

3、ult boxcollars.1.2 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, each system shall be used independently of the other.Combining values from the two systems may result in

4、 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 establish appro-priate safety and health practices and determine the applica-bility of regulatory limit

5、ations prior to use.2. Referenced Documents2.1 ASTM Standards:2F1292 Specification for Impact Attenuation of SurfacingMaterials 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

6、 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 rim of thepole vault box and under the front buns.3.1.3 box collar cutout, nthe opening in the pole va

7、ult 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 help to hold the box collarin place.3.1.5 front buns, nthe parts of the pole vault landingsystem that pa

8、d 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 rearmost portion of the polevault box and box collar cutout in front of the strike platewhere the pole bend

9、s 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 box where the pole slide meets thestrike plate.3.1.8 pole slide, nthe floor of the pole vault box that

10、 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 opening, nthe space between the ends ofthe box collar arms at the front of the pole vault box collar andabov

11、e 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, and a strike plate. A vaulter directsthe lower end of the vaulting pole into the pole vault box. Thebac

12、k 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 collar, na device used to offerimpact protection to pole vaulters in and around a pole vaultbox.3.1.12 s

13、idewalls, nthe left and right walls of the pole vaultbox.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 test1This specification is under

14、 the jurisdiction of ASTM Committee F08 on SportsEquipment and Facilities and is the direct responsibility of Subcommittee F08.67 onPole Vault.Current edition approved Sept. 1, 2012. Published October 2012. DOI: 10.1520/F2949-12.2For referenced ASTM standards, visit the ASTM website, www.astm.org, o

15、rcontact ASTM Customer Service at serviceastm.org. For Annual 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 States1location on the po

16、le 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 exceed 1150 when impact testedin accordance with Secti

17、on 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 least 38 cm (15in.). At its uppermost surface, the box c

18、ollar 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 arms shall extend forwardat least 108 cm (4212 in.) f

19、rom the base of the rear edge of thebox collar cutout. (See Figs. 1 and 2.)5.2 Maximum ThicknessA pole vault box collar shall beno more than 10 cm (4 in.) thick.NOTE 1Minimum dimensions shown unless otherwise noted.FIG. 1 Plan View of Pole Vault Box CollarF2949 1225.3 Maximum Dimensions of Box Colla

20、r CutoutAt thebox collars uppermost 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 morethan 58 cm (23 in.). At the horizontal plane of the runway, thehorizontal distance from left to ri

21、ght 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 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

22、 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 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 runwa

23、y. (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 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 h

24、orizontal 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 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 acr

25、oss 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 shall notextend forward past the upward extended plane of the strikeplate. The box collar arms shall not extend over the box beyondthe upward

26、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 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 f

27、rom the box at an angle between 105 and 120 degreesfrom 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 horizonta

28、l to match the angle of the sidewalls. This tapershall extend forward along the side of the pole bend cavity thefull length of the pole bend cavity. (See Figs. 1 and 2.)NOTE 1Minimum dimensions shown unless otherwise noted.FIG. 2 Cross-section View of Pole Vault Box Collar Along Centerline of Runway

29、F2949 1235.7 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 be

30、 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 fron

31、t 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 than

32、 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 front

33、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 inner

34、 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 theplant box. The wings shall conform to the inner walls of theplant box so as to

35、 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 toward therunway.5

36、.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 the pole vault b

37、ox 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 ASTM F1292 Standard Specification for ImpactAttenuation of Surfacing Materia

38、ls 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 Specification for Impact Attenuationof Surfacing Materials within the Use Zone of PlaygroundEquipment.8. Conditioning8.1

39、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 procedures for Installed Surface PerformanceTest (Field Test) of ASTM F1292 Standard Specification forImpa

40、ctAttenuation 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, itshall be tested in situ but with the front buns and any otherencroaching components of the pole vault landing systemremoved so

41、 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

42、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 locationto the lowest point on the impacting missile.9.1.4 Three consecutive impact tests shall be performed ateach impact te

43、st 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 any

44、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 bo

45、x 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 selected by the e

46、quipment opera-tor. If the location selected by the equipment operator is oneither of the box collar wings, the box collar must be removedfrom the pole vault box and placed on a flat rigid surface.10. Report10.1 Report the following information:10.1.1 Requesting Agency Information:10.1.1.1 The name,

47、 address, and telephone number of theperson or entity requesting the test.10.1.2 Testing Agency Information:10.1.2.1 The name, address, and telephone number of thetesting agency.10.1.2.2 The name and signature of the test operator.F2949 12410.1.2.3 Date(s) tests were performed.10.1.2.4 Date of the r

48、eport.10.1.3 Description of the Test Apparatus:10.1.3.1 Test equipment type and manufacturer.10.1.3.2 Date of most recent accelerometer calibration cer-tificate.10.1.4 Test ResultsThe following shall be reported foreach series of impact tests:10.1.4.1 Whether the sample was dry, wet, or frozen.10.1.

49、4.2 The ambient air temperature measured after thefinal drop in each series.10.1.4.3 The drop height and impact velocity or fall time.10.1.4.4 The g-max and HIC value for each drop and theaverage g-max and HIC value for the last two drops of eachseries.10.1.4.5 The location of each impact test on the pole vaultbox collar.10.1.5 Description of the Pole Vault Box Collar:10.1.5.1 The address of the test site.10.1.5.2 The manufacturer and the model name or numberof the pole vault box collar.10.1.5.3 The dimensions of the pole vault box collar.10.1.5.4 Nam