1、BRITISH STANDARD BS6462:1985 Incorporating Amendment No.1 Specification for Mechanical performance of peg-type casement stays and face-fixed wedge-action fasteners UDC 683.353:683.376.22BS6462:1985 This BritishStandard, having been prepared under the directionof the Elements andComponents (of Divers
2、e Materials) for Buildings waspublished under the authorityofthe Board ofBSI andcomes intoeffect on 30 September1985 BSI 12-1999 The following BSI references relate to the work on this standard: Committee reference ECB/41 Draft for comment80/14439DC ISBN 0 580 13712 0 Committees responsible for this
3、 BritishStandard The preparation of this BritishStandard was entrusted by the Elements and Components (of Diverse Materials) for Buildings (ECB/-) Standards Committee to Technical Committee ECB/41 upon which the following bodies were represented: Association of Builders Hardware Manufacturers Associ
4、ation of Burglary Insurance Surveyors British Hardware Federation British Lock Manufacturers Association British Plastics Federation British Woodworking Federation Consumer Standards Advisory Committee of BSI Department of the Environment (Building Research Establishment) Department of the Environme
5、nt (Property Services Agency) Greater London Council Guild of Architectural Ironmongers Incorporated Association of Architects and Surveyors Institute of Carpenters Institute of Architectural Ironmongers Royal Institute of British Architects Zinc Development Association Amendments issued since publi
6、cation Amd. No. Date of issue Comments 7930 February1994 Indicated by a sideline in the marginBS6462:1985 BSI 12-1999 i Contents Page Committees responsible Inside front cover Foreword ii 1 Scope 1 2 Definitions 1 3 Marking and claims of compliance 1 4 Design and construction 1 5 Performance 1 Appen
7、dix A Test preparation 3 Appendix B Test methods for casement stays 3 Appendix C Test methods for casement fasteners 3 Figure 1 Stays and fittings 5 Figure 2 Operating force characteristics 6 Figure 3 Resistance to wind gust loading (transverse loading) 7 Figure 4 Resistance to wind gust loading (ax
8、ial loading) 8 Figure 5 Resistance to vertical loading (free) 8 Figure 6 Resistance to vertical loading (engaged) 9 Figure 7 Operating force characteristics (fasteners) 9 Figure 8 Resistance to wind gust loading (fasteners) 10 Figure 9 Resistance to excessive operating force (fasteners) 10 Figure 10
9、 Resistance to wear (fasteners): two typical examples of test apparatus 11 Publications referred to Inside back coverBS6462:1985 ii BSI 12-1999 Foreword This BritishStandard has been prepared under the direction of the Elements and Components (of Diverse Materials) Standards Committee. To date very
10、little work has been done in collecting all the information and knowledge gained in relation to casement stays and fasteners for windows. Because of the complexity of the subject, the material cannot be specified in detail for each piece of every component, likewise dimensions for these pieces canno
11、t be given to suit all materials. Therefore, the scope of this document has been restricted to the mechanical performance of casement stays and fasteners. The mechanical performance in use of casement stays and fasteners will depend upon the method of fixing employed and the design of the window and
12、 related hardware and reference should be made to CP153 and BS6375-1 for advice on these topics. Because of the many methods of fixing and the fact that in most cases the fixings are not supplied with the stays and fasteners, the tests specified in this document involve bolting the strays and fasten
13、ers to their supports. CP153-1 should also be referred to for safety considerations related to provisions for opening and cleaning. This standard does not cover sampling. It is for the parties concerned to provide for appropriate sampling and testing rates to meet contractual and commercial requirem
14、ents. The security of windows against forced entry depends upon many features and is not covered in this document. In view of the fact that this document covers only the mechanical performance of peg-type casement stays and face-fixed wedge-action fasteners it was considered essential that the restr
15、icted scope of this document should be brought to the attention of any purchasers of items which are claimed to comply with it. The requirements of clause3 have, therefore, been incorporated to cover this point. A British Standard does not purport to include all the necessary provisions of a contrac
16、t. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pagesi andii, pages1 to12, an inside back cover an
17、d a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover.BS6462:1985 BSI 12-1999 1 1 Scope This BritishStandard specifies requirements for the mechanical performance of peg-ty
18、pe casement stays and face-fixed wedge-action fasteners for use on top hung and side hung aluminium, plastics, steel and wood casement windows up to1m 2in area. NOTEThe titles of the publications referred to in this standard are listed on the inside back cover. 2 Definitions For the purposes of this
19、 BritishStandard the definitions in BS565 and BS6100-4.1, BS6100-4.2 and BS6100-4.3 apply, together with the following. 2.1 Casement stays 2.1.1 casement stay a device used in conjunction with complementary items, to hold the opening casement of a window at various positions for ventilation and whic
20、h may also be used to hold the opening casement in the closed position 2.1.2 casement stay fittings complementary parts for a casement stay which enable the casement stay to perform its function, whether keeping the opening casement open or closed, e.g.peg plates, peg and hook plates etc. 2.1.3 peg
21、plate a device consisting of a locating peg mounted on a base plate as shown in Figure 1 2.1.4 twin peg plate a device consisting of two locating pegs mounted on a common based plate as shown in Figure 1 2.1.5 hook plate a device into which the free end of the casement stay can be located so that in
22、 conjunction with a peg plate the opening casement can be held in the closed position as shown in Figure 1 2.1.6 casement stay length the overall length of the stay including its end fittings when measured as shown in Figure 1 2.2 Casement features 2.2.1 casement fastener a device used in conjunctio
23、n with complementary items principally to secure the opening casement in the closed position, but in addition, it may be designed to hold the casement slightly opened for ventilation purposes 2.2.2 casement fastener fittings complementary parts for a casement fastener which enable the casement faste
24、ner to perform its functions 3 Marking and claims of compliance 1) Casement stays and fasteners shall not be marked with the number of this standard. Any claims of compliance related to this standard shall state clearly that this standard only specifies the mechanical performance of the casement sta
25、ys and fasteners. 4 Design and construction 4.1 Each item of hardware, including its complementary parts, shall be so designed that when installed in accordance with the manufacturers fixing instructions, the action of the hardware and the operation of the window shall not be obstructed. 4.2 The har
26、dware shall be free from sharp edges and burrs that might be a hazard to the user. 5 Performance 5.1 General. Casement stays and fasteners shall be prepared for testing in accordance with Appendix A. Tests shall be carried out in the order in which they are laid down in Appendix B or Appendix C, as
27、appropriate, after the casement stays and fasteners have been checked for compliance with clause4. Each sample shall meet all the relevant requirements of5.2. 5.2 Test requirements 5.2.1 All samples. When tested in accordance with Appendix B or Appendix C, as appropriate, there shall be no fracture
28、or breakage and it shall be possible to operate the casement stay or fastener. 5.2.2 Casement stays 5.2.2.1 When tested in accordance withB.1 the force measured shall be not less than180N. 1) See foreword.BS6462:1985 2 BSI 12-1999 5.2.2.2 When tested in accordance withB.2 toB.4 the permanent deforma
29、tion at any point shall not exceed1mm in the direction of loading. When tested in accordance withB.5 the permanent deformation at any point shall not exceed3mm in the direction of loading. When tested in accordance withB.6 the initial100N force shall not produce a permanent deformation at any point
30、exceeding3mm in the direction of loading and the subsequent200N force shall be sustained without sign of fracture. 5.2.3 Casement fasteners 5.2.3.1 When tested in accordance withC.1 the torque required to turn the fastener handle to the fully engaged position shall not exceed5 Nm. 5.2.3.2 When teste
31、d in accordance withC.2 andC.3 the maximum permanent deformation shall not exceed1.0mm. 5.2.3.3 When tested in accordance withC.4 the pull-in shall be not less than0.2mm, the relative position of the frame shall not have altered by more than1.0mm and the operating torque when measured according toC.
32、1 shall not exceed5Nm.BS6462:1985 BSI 12-1999 3 Appendix A Test preparation The test arrangements shall be as shown in Figure 2 to Figure 10. The bases, casements and frames shall be made and fixed so as not to distort during any test. The casement stays and fasteners, and their fittings, shall be b
33、olted in position so that the fixings do not distort during any test. The components of the simulated window/stay/fastener assembly shall be parallel or normal, as appropriate, to within 5 . The forces shall be applied within 5 of the specified direction and for60 5s. Appendix B Test methods for cas
34、ement stays B.1 Operating force characteristics (seeFigure 2) Bolt the peg plate to the base and position the stay with the peg in the first hole. Apply a force ofN without shock at50mm from the free end of the stay and measure the force which would be applied to the casement, as shown in Figure 2.
35、B.2 Resistance to excessive operating force (see Figure 2) Use the same test arrangement as for testB.1 with the stay plate rigidly fixed in position. Apply a force ofN at50mm from the free end of the stay in the closing direction. Measure any permanent deformation after the force has been removed.
36、B.3 Resistance to wind gust loading (closed windows, transverse loading) (see Figure 3) B.3.1 Test apparatus and set-up.The test apparatus shown in Figure 3 consists of a fixed horizontal rigid base above which a cross-beam can be suitably guided to move it both parallel to the base and in the direc
37、tion of loading shown in Figure 3. The casement stay is securely attached to the cross-beam and the hook plate and/or peg plate(s) are similarly attached to the base plate and/or cross-beam at the locations recommended by the manufacturer (i.e. assuming the test apparatus is an actual casement windo
38、w with the cross-beam representing its casement member and the base plate representing its fame). B.3.2 Test method. Apply a force ofN without shock to the cross-beam in the direction indicated in Figure 3. Measure any permanent deformation after the force has been removed. B.4 Resistance to wind gu
39、st loading (open windows, axial loading) (see Figure 4) B.4.1 Test apparatus and set-up. The test apparatus described inB.3 is suitable but the test set-up is arranged so that the cross-beam moves parallel to the longitudinal axis of the casement stay and the first ventilation position (excluding an
40、y locking position) from the cross-beam is engaged by the peg. B.4.2 Test method. Apply a force ofN without shock to the cross-beam in the direction indicated in Figure 4. Measure any permanent distortion after the force has been removed. B.5 Resistance to vertical loading (free) (seeFigure 5) This
41、test applies only to stays with a hold level device to prevent them falling below the sill or transom. Fix the casement of the simulated window/stay assembly to a rigid base with the stay parallel to the surface of the base. Apply a force ofN without shock at a point50mm from the end of the stay bar
42、 in the same direction as the stay hangs. B.6 Resistance to vertical loading with the stay position in the first ventilation hole (seeFigure 6) Arrange the test as shown in Figure 6, with the upper surface of the casement stay in a horizontal position and the peg located in the first ventilation hol
43、e (excluding any locking hole) from the clevis of the stay. Apply a force of N without shock vertically downwards at a point50mm from the end of the stay bar. Remove the force and measure any permanent deformation Subsequently apply a force ofN without shock vertically downwards at the same point on
44、 the stay bar and record whether it is sustained. Appendix C Test methods for casement fasteners C.1 Operating force characteristics (see Figure 7) Partially engage the spur of the fastener handle with the wedge plate. Apply a force ofN to thecasement without shock in the direction of opening, with
45、the relative movement of the casement and frame restricted to directions parallel to this applied force. Apply an increasing force without shock to the handle at a point25mm from its end and measure the force required to effect fastening. Note that the initial gap between the casement and frame shou
46、ld be sufficiently large to prevent them being pulled fully together when the handle is closed. 55 +5 0 300 +5 0 700 +5 0 1 000 +5 0 50 +5 0 100 +5 0 200 +5 0 40 +5 0BS6462:1985 4 BSI 12-1999 C.2 Resistance to wind gust loading (closed windows) (see Figure 8) With the catch fully engaged apply a for
47、ce ofN without shock to the casement in the opening direction (normal to the base and hence to the plane of the window). Provide means to restrict the relative movement of casement and frame to directions parallel to the applied force. C.3 Resistance to excessive operating force (axial loading) (see
48、 Figure 9) Apply a force ofN without shock to the handle, parallel to the axis and away from the base, and at a point50mm from the end of the handle. Measure any permanent deformation after the force has been removed. Repeat with the force applied towards the base. C.4 Resistance to wear (see Figure
49、 10) C.4.1 Test apparatus and set-up. The test apparatus shall consist of a fixed rigid base to which the casement fastener is secured and a floating frame to which the casement fastener fittings are secured. The movement of the frame shall be restricted to one plane either by vertical guide bars or by a hinged unit where the axis of rotation is300mm 50mm from the contact surfaces of the test item. A constant force ofN shall be applied to the casement fastener at the point and in the direction indicated in Figure 10. A suitable stop shall be
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