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1、BRITISH STANDARD BS 6109-2: 1989 Incorporating Amendment No. 1 Tail lifts, mobile lifts and ramps associated with vehicles Part 2: Code of practice for passenger lifts and ramps UDC 621.868.258:621.876.114:006.76:001.4:620.1 Licensed Copy: sheffieldun sheffieldun, na, Wed Dec 06 12:17:24 GMT+00:00 2
2、006, Uncontrolled Copy, (c) BSI BS 6109-2:1989 This British Standard, having been prepared under the direction of the Mechanical Handling Standards Committee, was published under the authority of the Board of BSI and comes into effect on 28 February 1989 BSI 02-1999 The following BSI references rela
3、te to the work on this standard: Committee reference MHE/12 Draft for comment 87/72521 DC ISBN 0 580 17116 7 Committees responsible for this British Standard The preparation of this British Standard was entrusted by the Mechanical Handling Standards Committee (MHE/-) to Technical Committee MHE/12, u
4、pon which the following bodies were represented: Associated Offices Technical Committee Association of Loading and Elevating Equipment Manufacturers British Ports Federation and the National Association of Ports Employers British Railways Board British Telecommunications plc Construction Plant-hire
5、Association Department of Health and Social Security Department of Trade and Industry Mechanical Engineering and Manufacturing Technology Division (MMT) Electricity Supply Industry in England and Wales Federation of Wire Rope Manufacturers of Great Britain Garage Equipment Association Health and Saf
6、ety Executive International Powered Access Federation London Regional Transport Amendments issued since publication Amd. No.Date of issueComments 9245December 1996 Indicated by a sideline in the margin Licensed Copy: sheffieldun sheffieldun, na, Wed Dec 06 12:17:24 GMT+00:00 2006, Uncontrolled Copy,
7、 (c) BSI BS 6109-2:1989 BSI 02-1999i Contents Page Committees responsibleInside front cover Forewordii Section 1. General 1Scope1 2Definitions1 3Statutory requirements and code of practice1 Section 2. Safety 4Hazards2 5Safety recommendations2 6Categories, safe working loads and dimensions4 Section 3
8、. Design 7Structural factor of safety5 8Operating speeds5 9Suspension5 10Hydraulic system6 11Mechanical transmissions6 12Electrical equipment6 13Noise level7 14Deflection7 Section 4. Information to be supplied by the manufacturer 15Marking8 16Instructions8 Section 5. Installation 17General9 Section
9、6. Operation, maintenance, periodic examination and records 18Operation10 19Maintenance10 20Periodic examination10 21Records10 Appendix A Test procedures11 Appendix B Type of certificate required for test and examination of passenger lifts and ramps associated with vehicles12 Figure 1 Typical arrang
10、ement for prevention of trapping3 Figure 2 Typical safe working load label for a category A lift8 Publications referred toInside back cover Licensed Copy: sheffieldun sheffieldun, na, Wed Dec 06 12:17:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6109-2:1989 ii BSI 02-1999 Foreword This Part of B
11、S 6109 has been prepared under the direction of the Mechanical Handling Standards Committee and has been based on a proposal provided by the Association of Loading and Elevating Equipment Manufacturers. This Part complements BS 6109 which will be amended to become BS 6109-1. This Part of BS 6109 cov
12、ers passenger lifts and ramps. BS 6109-1 covers commercial tail lifts. Recommended test procedures and test certificates are given in Appendix A and Appendix B. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for t
13、heir 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, pages i and ii, pages 1 to 12, an inside back cover and a back cover. This standard has been updated
14、(see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Licensed Copy: sheffieldun sheffieldun, na, Wed Dec 06 12:17:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6109-2:1989 BSI 02-19991 Section 1. General 1 Scope Th
15、is Part of BS 6109 details design and safety recommendations, operating procedures, installation and inspection recommendations for lifts and ramps for assisting entry or exit of passengers with or without wheelchairs into and out of vehicles through a height of not more than 1.7 m. Lifts and ramps
16、are categorized as A, B or C, or A or B respectively (see clause 6). NOTEThe titles of the publications referred to in this standard are listed on the inside back cover. 2 Definitions For the purposes of this Part of BS 6109, the following definitions apply. 2.1 tail lift a lift, fitted to a vehicle
17、, that enables a passenger-carrying platform to be raised and lowered NOTEThe tail lift need not necessarily be mounted at the rear of the vehicle. 2.2 mobile lift a lift, which is portable and may be sited adjacent to a vehicle, that enables a passenger-carrying platform to be raised and lowered 2.
18、3 ramp a system that is used to form an inclined track for wheelchairs between the vehicle floor and the ground NOTERamps may be used singly or in pairs. 2.4 appliance a term used to describe a lift and/or a ramp 2.5 platform width the minimum clear horizontal dimension of the lift platform measured
19、 parallel to the adjacent edge of the vehicle when facing the door aperture 2.6 platform depth the minimum clear horizontal dimension of the lift platform measured at right angles to the adjacent edge of the vehicle when facing the door aperture 2.7 ramp width the minimum clear horizontal dimension
20、of the ramp measured parallel to the adjacent edge of the vehicle 2.8 ramp length the minimum clear dimension of the ramp measured at right angles to the adjacent edge of the vehicle 2.9 platform vertical travel the distance between ground level and the maximum height of the platform or ramp 2.10 sa
21、fe working load the rated load applied as a uniformly distributed load over the whole platform area, or anywhere along the ramp, or as otherwise specified (expressed in kilograms) 2.11 power source an independent source of power other than the vehicle prime mover NOTEAn example of a power source is
22、an electro-hydraulic power pack. 2.12 auxiliary operation an alternative method of operation that can be used in case of failure of the power source 2.13 suspension a flexible means of support (rope, chain, etc.) including its end attachments 3 Statutory requirements and code of practice The princip
23、al statutory requirements and code of practice relating to passenger lifts and ramps associated with vehicles are as follows. a) The Health and Safety at Work etc., Act 1974. b) The Road Vehicles (Construction and Use) Regulations 1986. c) The Road Vehicles Lighting Regulations 1984. d) Code of Prac
24、tice1). The Safety of Passengers in Wheelchairs on Buses. VSE 87/1. e) The Public Services Vehicles (Conditions of Fitness, Equipment, Use and Certification) Regulations, 1981. 1) Draft available from Department of Transport, Vehicle Standards Engineering Division, 2 Marsham Street, London SW1P 3EB.
25、 Licensed Copy: sheffieldun sheffieldun, na, Wed Dec 06 12:17:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6109-2:1989 2 BSI 02-1999 Section 2. Safety 4 Hazards 4.1 Hazards to persons during normal use of lift Hazards to persons include the following: a) falling of persons or wheelchairs off the
26、 platform; b) trapping of fingers or other parts of the body by moving mechanisms; c) trapping of feet between the moving platform and stationary parts of the vehicle or lift; d) instability of mobile lift; e) persons being struck during deployment of a platform; f) loss of control of a rotating pla
27、tform during rotation. 4.2 Hazards associated with a fault condition of a lift A fault in the lifting mechanism can result in an uncontrolled descent. These fault conditions include the following: a) rope or chain failure; b) hydraulic failure; c) drive mechanism failure; d) linkage or pivot failure
28、; e) electrical failure. 4.3 Hazards to persons during normal use of ramp Hazards to persons include the following: a) falling of persons or wheelchairs off the edge of a ramp; b) persons in a wheelchair rolling down the ramp at an uncontrolled rate; c) persons in a wheelchair tipping over when goin
29、g up a steep ramp; d) ramp becoming detached from the vehicle; e) persons being struck during deployment of a ramp. 5 Safety recommendations NOTEAttention is drawn to BS 5304 which gives sound advice on guarding of machinery. 5.1 Prevention of falling The following safety features should be incorpor
30、ated into the appliances to prevent persons or wheelchairs falling off the platform or ramp. a) A hand rail on the platform: 1) on at least one side, and where practicable both sides, of the platform; 2) adequately secured; 3) at least 800 mm high; 4) of 30 mm to 35 mm diameter; 5) at least half the
31、 platform depth; 6) of a bright colour to contrast with the surroundings. b) Side guards on the platform or ramp: 1) at least 25 mm high; 2) on both sides of the platform or on each ramp; 3) extending the full length of the platform or ramp. c) Lift platforms should have a guard at the end furthest
32、from the vehicle which is erected by automatic operation. The guard should be such as to prevent an occupied wheelchair from rolling off the end of the platform (typically 100 mm high). NOTEThe requirement for automatic operation does not apply to lifts which are stowed to form a step (or steps) for
33、 ambulant persons. d) If it is otherwise possible for a wheelchair to fall off the edge of the platform nearest to the vehicle then a device should be fitted to prevent this. e) Gaps or holes within the working perimeter of the platform should not accept a probe greater than 15 mm diameter. f) A sur
34、face that is slip-resistant when either wet or dry should be used on the lift platform or ramp. g) Rotating platforms should be provided with a device to prevent sudden stopping at each extreme of the rotation arc. The device should be such that there will not be any likelihood of the passenger beco
35、ming unbalanced or being thrown during or at each end of any rotation movement, even on the steepest camber. 5.2 Prevention of trapping or injury within the lift mechanism The following criteria should be observed to help prevent trapping of or injury to persons within the lift mechanism. a) Particu
36、lar attention should be paid to the elimination of trapping of fingers and other parts of the body within the mechanisms. b) All sharp edges should be removed to help prevent injury. Licensed Copy: sheffieldun sheffieldun, na, Wed Dec 06 12:17:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6109-2:
37、1989 BSI 02-19993 5.3 Prevention of trapping between the moving platform and stationary parts of the vehicle or lift The following design criteria should be observed to prevent trapping of persons between the moving platform and stationary parts of the vehicle or lift. a) Types of design which do no
38、t allow any vertical gaps between the platform, or its associated parts, and any fixed part of the vehicle are preferred. An example of this type of design is shown in Figure 1. Alternatively, any other device or design may be used which eliminates entrapment. b) Any mechanical safety device and its
39、 components should engage positively. c) If it is possible for a person to walk between the lift platform and the fixed adjacent vehicle face, there should be a safety switch to prevent crushing the person. d) A safety switch used to prevent entrapment should be such that: 1) its operation isolates
40、the circuit in the direction of entrapment; and 2) its operation should not prevent movement in the direction of release. 5.4 Prevention of platform or bridge plate being trapped under the vehicle If part of the platform or bridge plate can extend under the vehicle in any circumstances, except if it
41、 is being stowed, then there should be a safety switch to prevent the platform being raised when these circumstances occur. 5.5 Stability Any appliance, and its associated vehicle if fixed to one, should not become unstable if the safe working load is placed as a point load on any part of the platfo
42、rm or ramp surface. NOTEThis is a design criterion and is not to be used for physical testing. 5.6 Controls 5.6.1 All controls should be so designed that: a) all movements of the lift, or ramp, should stop automatically when the controls are released; b) accidental operation of the lift should be pr
43、evented; c) fixed control devices should have the direction of movement of the appliance clearly marked by arrows on the control device, and wherever possible, should operate in the natural sense; d) pendant or remote controls should be clearly marked to prevent their accidental use upside down; eac
44、h individual control should be marked with a permanent legend, and directional arrows should not be used; e) a means of isolating the controls should be fitted so that unauthorized operation can be prevented. 5.6.2 All controls should be so sited that: a) the operator has a clear view of the platfor
45、m throughout its range of travel; b) they can be easily and safely reached by the operator; and c) control cables are unlikely to become trapped in the tail lift mechanism. 5.7 Ease of stowing While a maximum force of 125 N is preferred, no manual force in excess of 175 N should be required for any
46、manual operation necessary for stowing or deploying the lift or ramps, except for any momentary force which may be required, e.g. to free the platform from its spring clips. NOTEIt is preferable to use a suitable damped spring system to prevent any sudden movement during the platform deployment. Fig
47、ure 1 Typical arrangement for prevention of trapping Licensed Copy: sheffieldun sheffieldun, na, Wed Dec 06 12:17:24 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6109-2:1989 4 BSI 02-1999 5.8 Stowage in transit When stowed, the appliance should not prevent any door from being opened easily from ins
48、ide or outside the vehicle. If the appliance blocks or partially blocks an exit then, after opening the door(s), the appliance should be capable of being easily opened so that the resultant aperture complies with the relevant emergency exit size requirements. 5.9 Auxiliary operation The appliance sh
49、ould be fitted with a means of operating the mechanism in case of failure of the power source or the design should be such that this function is readily available if requested and can be fitted retrospectively. 6 Categories, safe working loads and dimensions 6.1 Lifts 6.1.1 Category A. Category A lifts should have: a) a safe working load of 300 kg minimum, for use with: 1) one wheelchair passenger + one attendant; or 2) two ambulant persons. b) minimum platform sizes of: 1) width 735 mm depth 1 200 mm; or 2) width 1 200 mm depth 1 000 mm. 6.1.2 Category B. Category