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है”ह”ह

IS 13942 (1994): Automotive vehicles - External projections- Performance requirements [TED 6: Automotive Body,Chassis, Accessories and Garage Equipments]

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Is’+3942”i *W?( Reaffirmed 1999)

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Indian Standard

AUTOMOTIVE VEHICLES — EXTERNAL[PROJECTIONS — PERFORMANCE

REQUIREMENTS

UDC 629”1’079:62016

@ Ills 1994

BUREAU OF INDIAN STANDARDSMANAK 13HAVAN, 9 BAHAIXJR SHAH ZAFAR MARG

NEW DELHI 110002

January 1994Price Group 3

Automotive Body and Chassis Sectional Committee, TED 6

FOREWORD

This Indian Standard was adopted by the Bureau of Indian Standards, after the draft finalized by the Automotive Body and Chassis Sectional Committee had been approved by the Transport Engineering Division Council.

The purpose of this standard is to reduce the risk of seriousness of body injury to a person hit by, the body work or crushing against it in the event of a collision. There is also likelihood of injury to the passenger if some parts are projected out more than specified particularly while taking a. turn or cornering.

In preparation of this Indian Standard ( considerable assistance has been derived from Safety Standard ) ( SS 29 ) ‘External projection’ issued by Automotive Research Association of India ( ARAI ), Pune and Uniform provisions concerning the approval of vehicles with regard to their- external projections, EEC Regulation No. 26.

The Committee responsible for the preparation’of this standard is given in Annex B.

In reporting the results of a test’or analysis made in accordance with this standard, if the final, value, observed or calculated, is to be rounded off, it shall be done in accordance with IS 2 : 19601 ‘Rules for rounding off numerical values ( revised)‘.

IS 13942 : 1994

Indian Standard

AUTOMOTIVE VEHICLES - EXTERNAL PROJECTIONS - PERFORMANCE

REQUIREMENTS 1 SCOPE

1.1 This standard specifies the requirements and test for all external projections of the vehicle excluding the rear view mirrors and other accessories like aerials, luggage racks, etc, if fitted.

1.2 This standard applies to all classes of vehicle on the road except for two and three wheeled vehicles below 500 cc.

2 REFERENCE

The Indian Standard IS 9435 : 1980 ‘Terms and definitions relating to dimensions of road vehicles’ is a necessary adjunct to this standard.

3 TERMINOLOGY

3.1 Vehicle

Vehicle shall be as defined in IS 9435 : 1980.

3.2 External Surface

.It means the outside of the vehicle including the bonnet, the lid of the luggage compartment, the doors, the wings, the roof, the lighting and light signalling devices and the visible strengthening components.

3.3 Floor Line

The following procedure to be followed for the floor line:

4

b)

cl

4

4

A cone is selected ( the height of which shall be convenient to handle ) which has its side at an angle of 15” to the vehicles, vertical.

The vehicle of which floor line is to be established shall be laden to its rated GVW.

The cone, in its vertical position, shall be brought near the lowest possible position of the laden vehicle’s external surface.

I The cone shall be movedpound the vehicle so that it comes in contact with its lowest point.

These points of contact are then geometri- cally traced to find the floor line.

I

In determining the floor line, no account shall be taken of the following:

1) 2) 3)

4)

Exhaust pipes

Wheels

Functional mechanical features attached to the under body, such as jacking points, suspension mountings, etc.

Attachments for use in towing or in ^_ _. I case of breakdown.

The gaps of the wheel arches are assumed to be filled in by an imaginary surface forming a smooth continuation of the surrounding external surface.

The front bumpers’ shall be taken into account in determining the floor line. Depending on the type of vehicles, the trace of the floor line shall be at either the outer edge of the bumper or at the body panel below the bumper.

Where two or more points of contact are observed at the same time, the lowest point of contact shall be used to determine the floor line.

3.4 Radius of Curvature

It means the radius of the arc of a circle which comes closest to the rounded form of the com- ponent under consideration.

4 GENERAL REQUIREMENTS

4.1 The provisions of this standard shall not apply to those parts of the external surface which, with the vehicle in the laden condition, with all doors, windows and access lids, etc, in the closed position, are either:

a) at height of more than 2 m; or

b) below the floor line; or

c) so located that, in static conditions, they cannot be contacted by a sphere 100 mm in diameter.

4.2 The external surface of vehicles shall not exhibit, direct outwards, any pointed or sharp parts or any projections of such shape, dimensions, direction or hardness as to be likely to increase the risk or seriousness of bodily injury to a person hit by the external surface or brushing against it in the event of a collision.

I§ 13942: 1994

4.3 The external surface of vehicles shall not exhibit, direct outwards, any parts likely to catch on pedestrians, cyclists or motorcyclists.

4.4 No protruding part of the external surface other than wiper blades and supporting members shall have a radius of curvature less than 2’5 mm except for provisions in 4.5, 5.3, 7, 8.2, 11.1, 12 and 14.

4.5 Protruding parts of the external surface, made of a material hardness not exceeding 60 Shore A, may have a radius of curvature of less than 2’5 mm.

5 ORNAMENTS

5.1 Added ornaments which project. more than 10 mm from their support shall retract, become detached or bend over under a force of 10 daN exerted at their most salient point in any _. direction in a plane approximately parallel to the surface on which thev are mounted. These ’ provisions shall not apply to ornaments on radiator grilles, to which only the general requirements of 4.1 to 4.5 shall apply.

9.2 The components of the bumper shall be so designed that all rigid surfaces facing outwards

, have a minimum radius of curvature of 5 mm.

8 WINDSCREEN WIPERS

8.1 The windscreen wiper fittings shall be such, that the wiper shaft is furnished with a protective casing which has radius of curvature meeting the requirements of 4.4 above and a surface of not less than 150 mm2.

8.2 These units shall be so made as to have no sharp angles or pointed or cutting parts of a non-functional nature.

9 BUMPERS

9.1 The ends of the bumpers shall be turned in towards the external surface in order to reduce the risk of fouling.

5.2 Protective strips or shielding on the external surface shall not be subjected to the test indicated in 4.4 and 4.5. However, they shall be firmly secured to the vehicle.

5.3 If the added ornaments are less than 5 mm thick, minimum radius of curvature shall not apply, but the outward facing angles of such ornaments shall be blunted.

6 HEADLIGHTS

6.1 Projecting visors and rims shall be permitted on headlights, provided that their projection, as measured in relation to the external transparent surface of the headlight, does not exceed 30 mm and their radius of curvature is atleast 2’5 mm throughout.

6.2 Retracting headlights shall meet the require- ment in 6.1 in both the operative and retracted positions.

7 GRJLLES AND GAPS

7.1 The requirements of 4.4 shall not apply to gaps between fixed or movable elements in- cluding those forming part of air intake or outlet grilles and radiator grilles, provided that the distance between c’onsecutive elements does not exceed 40 mm. For gap between 40 mm to 25 mm the radii of curvature shall be of 1 mm or more. However, if! the distance between two consecutive elements is equal to or less than 25 mm, the ra.dii of cbrvature of external faces of the elements shall not be less than 0’5 mm.

7.2 The junction of the front with the side faces of each element forming a grille or gap shall be blunted.

10 HANDLES,HINGES AND PUSHBUTTONS OF DOORS, LUGGAGE COMPARTMENTS AND FLAPS, TANK OPENINGS AND COVERS

10.1 The projection shall not exceed 60 mm in) the case of lateral door and luggage compart- ment handles and 30 mm in all other cases.

10.2 If lateral door handles turn to operate, they shall meet the following requirements.

10.2.1 The open end of the handle shall be directed towards the rear and the handle so arranged that it turns parallel to the plane of the door.

10.2.2 The end of the handle shall be turned, back towards the door.

11 WHEEL, FASTENERS AND HUB CAPS

11.1 The requirements as given in 4.4 shall not apply, but these components shall satisfy the requirements of 11.2 and 11.3.

11.2 The wheel fasteners and hub caps shall not exhibit any finshaped projections.

11.3 When the vehicle is travelling in a straight line, no part of the wheels other than the tyres, shall project beyond the vertical projection of any external surface or structure located over a horizontal plane passing through the axis of rotation. If functional requirements so warrant, wheel discs which cover wheel and hub nuts may project beyond the vertical projection of the external surface or structure provided that the radius of curvature of the surface of the pro- jecting part is not less than 30 mm. The maximum projection beyond the vertical pro- jection of the external surface of the structure in. no case shall exceed 30 mm.

2

12 SHEET METAL E0GES method described in Annex A.

Sheet metal edges, such as gutter edges and the 14 LATERAL, AIR OR RAIN rails of sliding door shall not be permitted

IS 13942 : 1994

DEFLECTORS

unless they are folded back or are fitted with a Lateral deflectors shall have a radius of curvature shield meeting the requirements of this standard. of at least 1 mm on edges capable of being

directed outwards. 13 BODY PANEL

15 JACKING BRACKETS Folds in body panels may have a radius of curvature of less than 2’5 mm, provided that it The jacking bracket shall not project beyond a is not less than one-tenth of the height ‘H’ of distance of 10 mm more than the vertical pro- the projection, measured in accordance with the jection of the floor line lying directly above it,

ANNEX A

( Clause 13 )

A-l The height ‘H’ of a projection is determined graphically by reference to the circumference of a 165 mm diameter circle, interna!ly tangential to the outer line of the external surface at the section to be checked.

A-2 His the maximum value of the distance, measured along a straight line passing through centre of the 165 mm diameter circle, between

the circumference of the aforesaid circle and the- external contour of the projection ( see Fig. 1 ).

A-3 In case where it is not possible for a 165 mm diameter circle to contact externally part of the outer line of the external surface at the section under consideration, the surface outline in this area shall be assumed to be that formed by the circumference of the 100 mm diameter circle

FIG. 1 METHOD FOR DETERMINATION OF HEIGHT ‘H’ BY DRAWING A CIRCLE OF 165 mm

9s 13942 : 1994

between its tangent points with the outer line, ( see Fig. 2 ). ‘H’ shall be determined as in A-2 above.

~-4 Drawings of the necessary sections through the external surface shall be provided by the manufacturer to allow the height of the pro- jections referred to above to the measured.

FIG. 2 METHOD FOR DETERMINATION OF HEIGHT ‘H' BY DRAWING A CIRCLE OF 165 mm AND 100 mm

4

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I

This Indian Standard has been developed from Dot : No. TED 6 ( 153 )

Amendments Issued Since Publication

Amend No. Date of Issue Text Affected

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