The reason that platform lift control buttons are "constant pressure" is to bring them in line with BS6440 (1999) 7.7 "Control systems should be fail safe. " The only way to guarantee this is to make the buttons constant pressure. Some companies are moving away from pressals to rocker switches which comply to the relevant BS requirements but make it easier for the the user to operate. Most of these switches will work if a hand or wrist are rested on the switch. Another alternative is to look into the use of joysticks which offer a similar option to rocker switches.
Jim Neal
Lift Engineer
Greenwich Council
"Bracewell, Robert" wrote:
> I have taken this up with several of the manufacturers and they can't
> come up with a reasonable answer to it! Some mumble that if they had
> switches that stayed on the then the lift could run out of control (?).
> It is something I will - again - be taking up with them at NAIDEX this
> year.
>
> Rob
>
> _______________________________________________
> Rob Bracewell BA (Hons)
> Access Officer,
> Forward Planning Team,
> Lancaster City Council,
> Palatine Hall,
> Dalton Square,
> Lancaster,
> LA1 1PW
> Tel. & Minicom. 01524 582372 (please use announcer)
> Mob. 07792439623
> Fax. 01524 582322
>
>
> -----Original Message-----
> From: Accessibuilt list [mailto:[log in to unmask]] On Behalf
> Of Mark Taylor
> Sent: 21 March 2006 08:31
> To: [log in to unmask]
> Subject: [ACCESSIBUILT] Platform Lifts
>
> Can anyone explain why most platform lifts need to have their control
> buttons constantly depressed to use them. This makes use very difficult
>
> for some disabled people.
>
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