Specifications

MIL-STD-1472E

an ON-OFF/Volume switch for a TV monitor), A three-position push-pull control maybe used only

where inadvertently selecting the wrong position has no serious consequences (e.g., older vehicle

headlight controls-OfflPark/Headlight-with integrated rotary panel light and dome light switches).

5.4.3 .1.8.2 Handle dimensions. displacement and clearances. Push-Pull control handles shall

conform to criteria in Table XI.

5.4.3 .1.8.3 Rotation. Except for combination push-pullhotate switch configurations (e.g., the

handle is rotated to disengage the brake setting), push-pull control handles shall be keyed to a non-

mtating shaft. When the control system

providesa combinationpush-pullhtate functionaloperation,

using

a round style knob, the rim of the knob shall be serrated to denote (visually and tactually) that the

knob can be rotated,and to facilitate a slip~ finger grip.

5.4.3 .1.8.4 Detents. Mechanical detents shall be incorporated into push-pull controls to provide

tactile indication of positions.

5.4.3 .1.8.5 SnamzinIZ

and inadvertent con-c

Use, hcation, and operating iAXiS of push-pull

type controls shall preclude the possibilityof the operator’s:

bumping a control while getting into or out of position (as in a vehicle),

snagging clothing, communication cables, or other equipment items on the control, or

inadvertently deactuating the control setting while reaching for another control.

5.4.3 .1.8.6 Dimdon of mntrol motion. Control direction shall be as foiiows:

a. Pull towards the operator for ON or activate; push away for OFF or deactivate.

b. Rotate clockwise to activate or increase a function of combination pull.hotary switches.

5.4.3 .1.8.7 Rea@nce

Force for pulling a panel control with fingers should be not mom than

18 N (4 lb); force for pulling a T-bar with four fingers should be not more than 45 N (10 lb).

5.4.3.1.9 Printed circuit (PC) switch controls.

5.4.3 .1.9.1

~. PC switches maybe used when manual programming functions are required

in systems employing printed circuit boards.

5.4.3 .1.9.2 Dimensions, resistance. disrdaccment and semtmtJ“on.Dimensions, resistance,

di~ d aqMrAQn beaw@eaad@llt Pcswi&&aCtM&nx

All CClnf&mto the foUowin&

t).

Actuators shall be sticiently large to permit emor-f= manipulation by the opmttor when

using some commonly available stylus (e.g., pencil or pen). The actuators shall not require

the we of a special tool for manipulation.

Resistance shall be sufficiently high to avoid inadvertent actuation under expected

use conditions. Resist ante should gradually increase, then drop when the actuator snaps into

pos?tmn. l’heuematcw Shau m be WpHbied Wppmg b&w9M fW&iLk.NW

Slide-type actuators shall have sufficient travel (displacement) to permit immediate

rmo:nition of w!’itrh wttin: The trn~’elshould he not less than twke xttuttor length. When

acluators arc

rocker-type, [he actuated wing shall be flush with the surface of the module,