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1、BRITISH STANDARD BS 5778:1979 ISO 5767:1978 Methods of test for Verification of stability of industrial trucks operating in special condition of stacking with mast tilted forward ISO title: Industrial trucks operating in special condition of stacking with mast tilted forward Stability tests UDC 621.
2、868.274 111.3:531.36:620.1 Licensed Copy: sheffieldun sheffieldun, na, Mon Dec 04 13:43:26 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5778:1979 This British Standard, having been prepared under the direction of the Mechanical Engineering Standards Committee, was published under the authority of t
3、he Executive Board and comes into effect on 31 October 1979 BSI 07-1999 The following BSI references relate to the work on this standard: Committee reference MEE/112 Draft for comment 77/75771 DC ISBN 0 580 10925 9 Cooperating organizations The Mechanical Engineering Standards Committee, under whose
4、 direction this British Standard was prepared, consists of representatives from the following Government departments and scientific and industrial organizations: The organizations marked with an asterisk in the above list, together with the following, were directly represented on the committee entru
5、sted with the preparation of this British Standard: Associated Offices Technical Committee*Department of Trade (Marine Division) Association of Consulting EngineersElectricity Supply Industry in England and Association of Hydraulic EquipmentWales ManufacturersEngineering Equipment Users Association*
6、 Association of Mining Electrical andFederation of Manufacturers of Construction Mechanical EngineersEquipment and Cranes British Compressed Air SocietyHealth and Safety Executive* British Electrical and Allied ManufacturersInstitution of Gas Engineers Association (BEAMA)Institution of Mechanical En
7、gineers British Gas CorporationInstitution of Plant Engineers British Gear Manufacturers AssociationInstitution of Production Engineers British Internal Combustion EngineLloyds Register of Shipping Manufacturers AssociationLondon Transport Executive British Pump Manufacturers AssociationMachine Tool
8、 Industry Research Association British Steel CorporationMinistry of Defence* British Steel IndustryNational Coal Board British Valve Manufacturers AssociationOil Companies Materials Association Chartered Institution of Building ServicesProcess Plant Association Crown Agents for Oversea Governments a
9、ndRailway Industry Association of Great Britain AdministrationsSociety of Motor Manufacturers and Traders Department of the EnvironmentLimited Department of Industry (MechanicalTelecommunication Engineering and Engineering)*Manufacturing Association (TEMA) Department of Industry (National Engineerin
10、gWater-tube Boilermakers Association Laboratory) British Industrial Truck AssociationContractors Plant Association British Ports AssociationCranfield Institute of Technology Castor Manufacturers (UK) AssociationFood Manufacturers Federation Incorporated Chemical Industries AssociationMetal Packaging
11、 Manufacturers Association Amendments issued since publication Amd. No.Date of issueComments Licensed Copy: sheffieldun sheffieldun, na, Mon Dec 04 13:43:26 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5778:1979 BSI 07-1999i Contents Page Cooperating organizationsInside front cover National forewor
12、dii 1Scope1 2Field of application1 3References1 4Conditions of validity1 5Stability tests1 6Additional stability test2 Figure1 Publications referred toInside back cover Licensed Copy: sheffieldun sheffieldun, na, Mon Dec 04 13:43:26 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5778:1979 ii BSI 07-1
13、999 National foreword This British Standard has been prepared under the direction of the Mechanical Engineering Standards Committee. It is identical with ISO 5767:1978 “Industrial trucks operating in special condition of stacking with mast tilted forward Stability tests”, prepared by Technical Commi
14、ttee ISO/TC 110, Industrial trucks, of the International Organization for Standardization (ISO). Terminology and conventions. The text of the international standard has been approved as suitable for publication, without deviation, as a British Standard. Some terminology and certain conventions are n
15、ot identical with those used in British Standards; attention is especially drawn to the following: Wherever the words “International Standard” appear, referring to this standard, they should be read as “British Standard”. A British Standard does not purport to include all the necessary provisions of
16、 a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Cross-references International standardCorresponding British Standard ISO 1074:1975BS 3726:1978 Counterbalanced lift tr
17、ucks. Stability Basic tests (Identical) ISO 3184:1974BS 4436:1978 Reach and straddle fork lift trucks Stability tests (Identical) ISO 5766:1978BS 5777:1979 Methods of test for verification of stability of pallet stackers and high lift platform trucks (Identical) Summary of pages This document compri
18、ses a front cover, an inside front cover, pages i and ii, pages 1 and 2, an inside back cover and 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. Licensed Copy: sheffi
19、eldun sheffieldun, na, Mon Dec 04 13:43:26 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5778:1979 BSI 07-19991 1 Scope This International Standard specifies special tests for the verification of stability of trucks stacking with the mast tilted forward. 2 Field of application This International Sta
20、ndard applies to the following trucks operating in the special applications where increased stability is required to permit stacking with the mast tilted forward. a) Counterbalanced fork lift trucks with tilting masts, up to and including 10 000 kg (20 000 lb) manufacturers rated capacity. b) Reach
21、(retractable mast or forks) and straddle fork lift trucks with tilting masts, up to and including 5 000 kg (10 000 lb) manufacturers rated capacity. c) Pallet stackers and high lift platform trucks, with tilting masts, up to and including 5 000 kg (10 000 lb) manufacturers rated capacity. 3 Referenc
22、es ISO 1074, Counterbalanced lift trucks Stability Basic tests. ISO 3184, Reach and straddle fork lift trucks Stability tests. ISO 5766, Pallet stackers and high lift platform trucks Stability tests. 4 Conditions of validity 4.1 The tests specified in this International Standard are intended to veri
23、fy that the truck type under consideration has satisfactory stability under the special applications where increased stability is required for trucks stacking with the mast tilted forward. The tests specified are in addition to the stability tests applicable to the respective types of truck under no
24、rmal operating conditions. 4.2 The special capacity, as determined by this test, and the angle of forward tilt shall be indicated on the truck capacity plate. 5 Stability tests 5.1 General For the specific purpose of rating a fork truck intended for stacking (depositing or withdrawing the load) on l
25、evel ground with the mast tilted forward and the load in elevated position (see Figure), the following special test shall apply. 5.2 Conditions for carrying out the test 5.2.1 Position of truck on test platform Counterbalanced fork lift trucks shall be positioned and located on the test platform as
26、for test No. 1 of ISO 1074. Reach and straddle fork lift trucks, pedestrian and rider controlled, shall be positioned and located on the test platform as for test No. 1 of ISO 3184. Pallet stackers and high lift platform trucks, pedestrian and rider controlled, shall be positioned and located on the
27、 test platform as for test No. 1 of ISO 5766. Figure Licensed Copy: sheffieldun sheffieldun, na, Mon Dec 04 13:43:26 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5778:1979 2 BSI 07-1999 5.2.2 Test load The test load shall be such that it simulates an unrestrained homogeneous cube, whose side is equ
28、al to twice the load centre distance D, and the mass of which is that which the truck is able to carry under the special conditions of the test. 6 Additional stability test The load shall be raised to its maximum elevation and the mast tilted forward to its fullest extent. The platform shall then be
29、 tilted slowly to the appropriate slope as indicated in test No. 1 of ISO 1074, ISO 3184 or ISO 5766 respectively. The truck is considered stable if it does not overturn under the conditions of the test. Licensed Copy: sheffieldun sheffieldun, na, Mon Dec 04 13:43:26 GMT+00:00 2006, Uncontrolled Cop
30、y, (c) BSI BS 5778:1979 BSI 07-1999 Publications referred to See national foreword. Licensed Copy: sheffieldun sheffieldun, na, Mon Dec 04 13:43:26 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5778:1979 ISO 5767:1978 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is
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