| (19) |
 |
|
(11) |
EP 0 348 202 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
05.12.1990 Bulletin 1990/49 |
| (43) |
Date of publication A2: |
|
27.12.1989 Bulletin 1989/52 |
| (22) |
Date of filing: 22.06.1989 |
|
|
| (84) |
Designated Contracting States: |
|
BE DE ES FR GB IT NL SE |
| (30) |
Priority: |
22.06.1988 GB 8814807
|
| (71) |
Applicant: TRW Transportation Electronics Limited |
|
Cirencester
Gloucestershire GL7 1YZ (GB) |
|
| (72) |
Inventors: |
|
- Sutton, Gary Raymond
Nr. Cirencester
Gloucestershire (GB)
- Davison, Andrew Richmond
Malmesbury
Wiltshire (GB)
- Deane, Norman Philip
Cirencester
Gloucestershire (GB)
|
| (74) |
Representative: Lainé, Simon James et al |
|
Wynne-Jones, Lainé & James
22, Rodney Road Cheltenham
Gloucestershire GL50 1JJ Cheltenham
Gloucestershire GL50 1JJ (GB) |
|
| |
|
| (54) |
Electrical switch assemblies |
(57) A joystick switch assembly has a lever (3) which can pivot about a central point
(7), with a plurality of switches (22) distributed about that point. The lever (3)
operates two sliders (11, 12) in mutually transverse directions, only one slider being
movable at a time. The sliders (11, 12) carry spring loaded plungers (20) which co-operate
with the switches (22). When a slider (11, 12) is moved by tilting the lever (3) from
a central, neutral position, the plungers (20) carried by that slider operate associated
switches (22). But when the lever (3) is released, the spring loading (19) pushes
the slider back, causing the lever (3) to revert to the neutral position, and the
plungers (20) follow to their initial positions causing the switches (22) also to
revert. The principle is also applicable to a switch assembly in which the operating
lever moves in only one plane.