IPC 6 English version B62D !A-B62D 11/24

B62D-B62D01124

SECTION B– PERFORMING OPERATIONS; TRANSPORTING

B 62

LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS

B 62 D

MOTOR VEHICLES; TRAILERS (steering, or guiding on a desired track, of agricultural machines or implements A 01 B 69/00; wheels, castors, axles, increasing wheel adhesion B 60 B; vehicle tyres, tyre inflation or tyre changing B 60 C; connections between vehicles of a train or the like B 60 D; vehicles for use on rail and road, amphibious or convertible vehicles B 60 F; suspension arrangements B 60 G; heating, cooling, ventilating or other air treating devices B 60 H; windows, windscreens, non-fixed roofs, doors or similar devices, protective coverings for vehicles not in use B 60 J; propulsion plant arrangements, auxiliary drives, transmissions, controls, instrumentation or dashboards B 60 K; electric equipment or propulsion of electrically-propelled vehicles B 60 L; power supply for electrically-propelled vehicles B 60 M; passenger accommodation not otherwise provided for B 60 N; adaptations for load transportation or to carry special loads or objects B 60 P; lighting, signalling B 60 Q; vehicles, vehicle fittings or vehicle parts, not otherwise provided for B 60 R; servicing, cleaning, repairing, supporting, lifting, or manoeuvring, not otherwise provided for B 60 S; brake arrangements, brake control systems or parts thereof B 60 T; air-cushion vehicles B 60 V; motor-cycles, accessories therefor B 62 J, B 62 K; testing of vehicles G 01 M)

Note

In this subclass, the following terms are used with the meanings indicated:

–

"vehicles" includes motor vehicles and trailers;

–

"trailers" includes forecars or sidecars.

Steering of motor vehicles or trailers (steering devices applicable only to steerable undercarriages for aircraft B 64 C 25/50) [3]

Steering controls, i.e. means for initiating a change of direction of the vehicle [4,5]

vehicle-mounted

Hand wheels

Rims, e.g. with heating means; Rim covers (B 62 D 1/11 takes precedence) [5]

Spokes, e.g. resilient (B 62 D 1/11 takes precedence) [5]

Hubs; Connecting hubs to steering columns, e.g. adjustable (B 62 D 1/11 takes precedence) [5]

incorporating energy-absorbing arrangements, e.g. by being yieldable or collapsible (padded linings associated with the steering wheel B 60 R 21/05; shock absorbers using plastic deformation of members in general F 16 F 7/12) [5]

Hand levers

Tillers, i.e. hand levers operating on steering columns

Steering columns

yieldable, adjustable, or tiltable (padded linings associated with the steering column B 60 R 21/05)

incorporating energy-absorbing arrangements, e.g. by being yieldable or collapsible (shock-absorbers using plastic deformation of members in general F 16 F 7/12) [5]

Connecting steering column to steering gear

Alternative steering-control elements, e.g. for teaching purposes

not vehicle-mounted

mechanical, e.g. by a non-load-bearing guide (railways B 61)

non-mechanical

Steering gears (power assisted or power driven B 62 D 5/00; steering linkages B 62 D 7/00; for non-deflectable wheels B 62 D 11/00; gearing in general F 16 H)

mechanical

of worm type

with screw and nut

using intermediate balls or the like

with worm engaging in sector or roller gear

of rack-and-pinion type

hydraulic

Power-assisted or power-driven steering (for non-deflectable wheels B 62 D 11/00; fluid-pressure servomotors in general F 15 B)

mechanical, e.g. using a power-take-off mechanism for taking power from a rotating shaft of the vehicle and applying it to the steering gear

electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear

fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle [4]

Supply of pressurised fluid for steering also supplying other consumers [4]

characterised by type of valve used (valves in general F 16 K) [4]

083

Rotary valves [4]

087

Sliding spool valves [4]

characterised by means for actuating valves [4]

093

Telemotor driven by steering wheel movement (hydraulic steering gear B 62 D 3/14) [4]

097

gerotor type [4]

characterised by type of power unit [4]

Piston and cylinder [4]

Rotary motor [4]

Expansible chamber with flexible wall [4]

characterised by power transmitting means [4]

specially adapted for particular type of steering gear or particular application (steering gears per se B 62 D 3/00; steering linkages not characterised by being power-assisted or power-driven B 62 D 7/00) [4]

for rack-and-pinion type [4]

for worm type [4]

for pivoted axles [4]

for pivoted bogies [4]

Safety devices, e.g. alternate emergency power supply or transmission means to ensure steering upon failure of the primary steering means [4]

for telemotor systems [4]

Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits (means for initiating a change in direction B 62 D 1/00; steering valves B 62 D 5/06; combined with means for inclining the vehicle body or wheels on bends B 62 D 9/00) [4,6]

Notes

(1)

When classifying in this group, classification is also made in the appropriate one of groups B 62 D 1/00 to B 62 D 5/00 or B 62 D 7/00 to B 62 D 19/00 if other aspects of the steering system are of interest. [5]

(2)

In this group (but excluding groups B 62 D 6/02 to B 62 D 6/10), it is desirable to add the indexing codes of groups B 62 D 101:00 to B 62 D 137:00. The indexing codes should be unlinked. [5]

(3)

In this group, it is desirable to add the indexing codes of groups B 62 D 151:00 to B 62 D 155:00. The indexing codes should be unlinked. [6]

responsive only to vehicle speed [4]

responsive only to forces disturbing the intended course of the vehicle, e.g. forces acting transversely to the direction of vehicle travel [4]

responsive only to vehicle vibration dampening arrangements (steering dampers for cycles B 62 K 21/08) [4]

responsive only to input torque [6]

characterised by the means for sensing torque [6]

Steering linkage; Stub axles or their mountings (B 62 D 13/00 takes precedence; power-assisted or power-driven steering B 62 D 5/00) [5]

for pivoted bogies

with more than one wheel

for individually-pivoted wheels, e.g. on king-pins

the pivotal axes being situated in a single plane transverse to the longitudinal centre line of the vehicle

characterised by means varying the ratio between the steering angles of the steered wheels (varying the ratio automatically depending on driving conditions B 62 D 6/00) [5]

with single-output steering gear

with twin-output steering gear

the pivotal axes being situated in more than one plane transverse to the longitudinal centre line of the vehicle, e.g. all-wheel steering

characterised by means varying the ratio between the steering angles of the steered wheels (varying the ratio automatically depending on driving conditions B 62 D 6/00) [5]

Arrangement of linkage connections (pivots per se F 16 C)

Steering knuckles; King-pins

Links, e.g. track rods (means for adjusting camber, castor, or toe-in B 62 D 17/00)

Arrangements for reducing or eliminating reaction, e.g. vibration, from parts, e.g. wheels, of the steering system [5]

Steering deflectable wheels not otherwise provided for (steering-position indicators B 62 D 15/02)

combined with means for inwardly-inclining vehicle body on bends

combined with means for inclining vehicle wheels on bends (B 62 D 9/02 takes precedence) [5]

11/

Steering non-deflectable wheels; Steering endless tracks or the like

11/

by differentially driving ground-engaging elements on opposite vehicle sides

11/

by means of separate power sources

11/

by means of a single main power source

11/

using brakes or clutches as main steering-effecting means

11/

using gearings with differential power outputs on opposite sides, e.g. twin- differential or epicyclic gears

11/

using separate change-speed gearings

11/

differential power outputs being effected by additional power supply to one side, e.g. power originating from secondary power source

11/

the additional power supply being supplied mechanically

11/

the additional power supply being supplied hydraulically

11/

Endless-track steering having pivoted bogie carrying track (B 62 D 11/02 takes precedence)

11/

Endless-track steering being effected by deflecting endless-track rollers or the like

11/

Endless-track steering specially adapted for vehicles having both steerable wheels and endless track

B62D 12/00 - B62D 47/02