1、Designation: F2949 122F2949 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 las
2、t revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1 NOTEEditorially added footnotes regarding patent rights in August 2013.2 NOTEEditorially corrected 9.1.3 in April 2014.1. Scope1.1
3、This specification covers minimum requirements of size, physical characteristics of materials, standard testing procedures,labeling and identification of pole vault box collars.21.2 UnitsThe values stated in SI units are to be regarded as the standard. The values given in parentheses are for informa
4、tiononly.1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibilityof the user of this standard to establish appropriate safety safety, health, and healthenvironmental practices and determine theapplicability of regulatory limi
5、tations prior to use.1.4 This international standard was developed in accordance with internationally recognized principles on standardizationestablished in the Decision on Principles for the Development of International Standards, Guides and Recommendations issuedby the World Trade Organization Tec
6、hnical Barriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:3F1292 Specification for Impact Attenuation of Surfacing Materials Within the Use Zone of Playground Equipment3. Terminology3.1 Definitions:3.1.1 box collar arms, nthe two parts of the pole vault box collar to the lef
7、t and right of the pole vault box. If the box collarhas box collar wings, the wings are part of the box collar arms.3.1.2 box collar body, nthe part of the pole vault box collar that pads the horizontal surfaces around the rim of the pole vaultbox and under the front buns.3.1.3 box collar cutout, nt
8、he opening in the pole vault box collar above the pole vault box.3.1.4 box collar wing, nthe part of the box collar arm that extends down the inner sidewall of the pole vault box. The boxcollar wings provide protection and help to hold the box collar in place.3.1.5 front buns, nthe parts of the pole
9、 vault landing system that pad the areas between the standard bases and around the polevault box.3.1.6 front opening, nthe opening at the front of the pole vault box nearest the approach runway.3.1.7 pole bend cavity, nthe rearmost portion of the pole vault box and box collar cutout in front of the
10、strike plate where thepole bends and rotates. The cavity is formed by the sidewalls and strike plate of the pole vault box, the rearmost part of the poleslide, and inside edges of the box collar cutout over the deepest part of the box where the pole slide meets the strike plate.1 This specification
11、is under the jurisdiction of ASTM Committee F08 on Sports Equipment, Playing Surfaces, and Facilities and is the direct responsibility ofSubcommittee F08.67 on Pole Vault.Current edition approved Sept. 1, 2012April 1, 2018. Published October 2012May 2018. Originally approved in 2012. Last previous e
12、dition approved in 2012 asF2949 122. DOI: 10.1520/F2949-12E02.10.1520/F2949-18.2 The users attention is called to the possibility that compliance with this standard may require use of an invention covered by patent rights.By publication of this standard, no position is taken with respect to the vali
13、dity of any such claim(s) or of any patent rights in connection therewith. If a patent holderhas filed a statement of willingness to grant a license under these rights on reasonable and nondiscriminatory terms and conditions to applicants desiring to obtain such alicense, then details may be obtaine
14、d from the standards developer.3 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.This document is not an ASTM s
15、tandard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all c
16、ases only the current versionof the standard as published by ASTM is to be considered the official document.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States13.1.8 pole slide, nthe floor of the pole vault box that slants downward from i
17、ts front boundary with the runway to its rearboundary with the back of the box. The tip of the vaulting pole slides on the pole slide to the strike plate.3.1.9 pole slide opening, nthe space between the ends of the box collar arms at the front of the pole vault box collar and abovethe intersection o
18、f the runway with the pole slide.3.1.10 pole vault box, nthe trough at the end of the pole vault runway. It has four sides: a downward sloping floor or pole slide,two sidewalls, and a strike plate.Avaulter directs the lower end of the vaulting pole into the pole vault box. The back wall of polevault
19、 box stops the forward motion of the end of the pole while allowing the pole to rotate about its end as the vaulter leaves theground and completes a vault.3.1.11 pole vault box collar, na device used to offer impact protection to pole vaulters in and around a pole vault box.3.1.12 sidewalls, nthe le
20、ft and right walls of the pole vault box.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 last two of a series of three impact tests for each impact test location onthe pole vault box collar shal
21、l not exceed 200 g when impact tested in accordance with Section 9.4.2 The average HIC score calculated from the last two of a series of three impact tests for each impact test location on the polevault box collar shall not exceed 1150 when impact tested in accordance with Section 9.5. Dimensions5.1
22、 Minimum DimensionsA pole vault box collar shall be at 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 the rear edge of the box collar cutout shall be at least 38 cm (15 in.).At its uppermost surface, the box collar shall cover t
23、he upper edges of each sidewall of the box from the front of the box wherethe pole slide meets the runway to a point on the top edge of the sidewall no less than 20 cm (8 in.) forward of the top of the strikeplate. The box collar arms shall extend forward at least 108 cm (4212 in.) from the base of
24、the rear edge of the box collar cutout.(See Figs. 1 and 2.)4,55.2 Maximum ThicknessA pole vault box collar shall be no more than 10 cm (4 in.) thick.5.3 Maximum Dimensions of Box Collar CutoutAt the box collars uppermost surface in the vertical plane passing throughthe front edge of the pole slide,
25、the horizontal distance from left to right across the box collar cutout shall be no more than 58 cm(23 in.). At the horizontal plane of the runway, the horizontal distance from left to right across the rear of the box collar cutoutat the front of the bend cavity shall be no more than 29 cm (1112 in.
26、). The width across the base of the rear opening of the boxcollar cutout shall be no more than 42 cm (1612 in.). The width across the base of the front opening of the box collar cutout shallbe no more than 60 cm (24 in.). The box collar arms shall extend over the box beyond the upward extended plane
27、 of the adjacentsidewall of the pole vault box from a point no more than 20 cm (8 in.) forward from the top edge of the strike plate to the frontof the box where the pole slide meets the runway. (See Figs. 1 and 2.)5.4 Minimum Dimensions of Box Collar CutoutAt the box collars upper most surface in t
28、he vertical plane passing throughthe front edge of the pole slide, the horizontal distance from left to right across the box collar cutout shall be no less than 56 cm(22 in.).At and above the horizontal plane of the runway, the horizontal distance from left to right across the rear of the box collar
29、cutout at the front of the bend cavity shall be no less than 23 cm (9 in.). The width across the base of the rear opening of the boxcollar cutout shall be no less than 41 cm (16 in). The width across the base of the front opening of the box collar cutout shall beno less than 58 cm (23 in.). The fron
30、t edge of the box collar that borders the strike plate shall not extend forward past the upwardextended plane of the strike plate. The box collar arms shall not extend over the box beyond the upward extended plane of theadjacent sidewall of the pole vault box for a distance of at least 15 cm (6 in.)
31、 forward from the top edge of the strike plate. (SeeFigs. 1 and 2.)5.5 To allow the pole to bend undisturbed, the front face of the box collar edge that borders the strike plate shall be tapered awayfrom the box at an angle between 105116 and 120 degrees 140 from horizontal to match or exceed the an
32、gle of the strike plate.5.6 To allow the pole to bend undisturbed, the inner faces of the box collar arms that border the sidewalls shall be tapered awayfrom the box at an angle between 105124 and 120 degrees 140 from horizontal to match or exceed the angle of the sidewalls.This taper shall extend f
33、orward along the side of the pole bend cavity the full length of the pole bend cavity. (See Figs. 1 and 2.)5.7 The body of the box collar shall extend rearward at least 30 cm (12 in.) under the front buns of the pole vault landing system.4 ASTM has been informed that a pole vault box collar manufact
34、ured to the specifications listed in Fig. 1 may be covered by a patent. ASTM is unable to verify thisdetermination. Information regarding the alleged patent or the identification of an alternative(s) to the alleged patented item should be sent to ASTM InternationalHeadquarters. Your comments will re
35、ceive careful consideration at a meeting of the responsible technical committee, which you may attend.5 ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard. Users of this standardare expressly advised that
36、determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility.F2949 1825.8 The body of the box collar shall extend laterally at least 15 cm (6 in.) under the front buns of the pole vault landing system.5.9 The box collar w
37、ings shall be no more than 10 cm (4 in.) thick on the upper sidewalls of the box. The box collar wings shallextend no closer towards rear of the box than 15 cm (6 in.) from the strike plate. The horizontal distance between the wings ofthe box collar arms shall be no less than 15 cm (6 in.) when meas
38、ured at the front edge of the bend cavity. The minimum horizontaldistance between the wings of the box collar arms shall increase linearly from this point forward to the front opening of the box,where the pole slide meets the runway and where the opening between at the base of the box collar arms sh
39、all be no less than 58cm (23 in.). The box collar wings shall allow room for a pole to slide freely down the interior edges of the pole vault box wherethe sidewalls meet the pole slide. The box collar wings shall extend down the sidewalls of the box to a point no lower than 10cm (4 in.) from the pol
40、e slide at the front edge of bend cavity. The minimum distance between the lowermost edges of the wingsof the box collar arms and the pole slide shall decrease linearly from this point forward to the front opening of the box, where thepole slide meets the runway and where the distance between the lo
41、wer surface of the inner most edges of the box collar arms andthe pole slide shall be no less than 3 cm (1 in.). (See Figs. 1 and 2.)NOTE 1Minimum dimensions shown unless otherwise noted.FIG. 1 Plan View of Pole Vault Box CollarF2949 1835.10 The box collar wings shall allow improperly planted poles
42、to slide forward and downward into the bottom of the plant box.The wings shall conform to the inner walls of the plant box so as to provide protection and yet guide a poorly planted pole to thebase of the strike plate at the bottom-rear of the box.5.11 The bend cavity must allow the pole to bend int
43、o the corners formed by the sidewalls and the strike plate, and beyond.Some poles bend in a circular rotation back toward the runway.5.12 The pole vault box collar shall be fixed to the ground or the inner walls during use.6. Significance and Use6.1 The dynamic data obtained with the procedures give
44、n in this specification measure the cushioning properties of the polevault landing systems tested.6.2 The dimensions of the pole vault box collar are specified with respect to the dimensions of the pole vault box and thekinematics of typical pole movement in the pole vault box.7. Test Apparatus7.1 I
45、mpact Test SystemThe test apparatus described in Section 8 of Specification F1292 is used.Afree-fall impact test systemshall be used.7.2 MissileThe missile used is described in section 8.2.1 of Specification F1292.8. Conditioning8.1 Pole vault box collars shall be tested under ambient conditions tha
46、t match those of intended use.NOTE 1Minimum dimensions shown unless otherwise noted.FIG. 2 Cross-section View of Pole Vault Box Collar Along Centerline of RunwayF2949 1849. Impact Testing Procedures9.1 The pole vault box collar shall be tested using the impact testing procedures for Installed Surfac
47、e Performance Test (FieldTest) of Specification F1292 with the following conditions:9.1.1 If the pole vault box collar is tested at its use site, it shall be tested in situ but with the front buns and any other encroachingcomponents of the pole vault landing system removed so that the pole vault box
48、 collar only touches the pole vault box and thesurfaces on which the box collar rests.9.1.2 If the pole vault box collar is tested at other than its use site, it shall be tested while resting on a flat rigid surface.9.1.3 The impacting missile shall be dropped from a height of 3.80 m (12 ft. 512 in.
49、) above the impact test location. The 3.80m (12 ft. 512 in.) drop height is measured from the upper surface of the pole vault box collar at the impact test location to the lowestpoint on the impacting missile.9.1.4 Three consecutive impact tests shall be performed at each impact test location. The interval between impact tests shall be1.5 6 0.5 min. Calculate the average g-max and HIC score for each impact test location by averaging results from the second andthird impacts.9.1.5 Impact tests shall be completed on the pole vault box collar
