Thumbwheel with click!

I am trying to find a component that does the following:
(1) Operates as a thumbwheel, i.e. to be mounted so that the edge of
the wheel protrudes from a casing through a slot. (2) Has mechanical detents, i.e. it doesn't smoothly roll, but clicks as it is rotated. (3) Each click will close a pair of contacts, however there are two pairs of contacts. One pair will operate in one rotation direction, conversely the other pair in the other direction. (4) Pressing the wheel will momentarily operate a thrid pair of contacts.
I have tried to find something suitable for doing the above. I thought I would ask here if anyone has come across something that could do all that.
If there are options that are splash and dust proof, then that would be even better!
Cheers
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
Stephen wrote:

I don't have a part number. But this sounds similar to a mouse scroll wheel. Except for the detents, that is.
One important point: I don't think you'll have much luck finding a wheel that closes one set of contacts in one direction and a different set in the other. Most implementations produce two open/close signals that are in quadrature (at a 90 degree phase difference between cycles*). Then, some simple logic in the device monitoring those contacts can determine the direction of rotation.
*There may be more than one cycle per wheel rotation.
--
Paul Hovnanian mailto: snipped-for-privacy@Hovnanian.com
------------------------------------------------------------------
  Click to see the full signature.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Stretch my old ring out.
I Am Kirk Johnson. "Anal Stretching, Wrenching & Expanding Specialist" http://www.imagefap.com/image.php?id 88478267
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

You could well be right, I'll have to investigate further.
If you're interested I have an old Garmin i3 GPS which is all bashed up, left button is missing, battery cover broken, USB connection unreliable. I was toying with the idea of reboxing it in a water proof (ish) plastic box, so I can use it on my motor-scooter. I would like to have a better thumb wheel control for it though. Something at least a bit weather proof, and more easily operated whilst wearing gloves.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
The newer ones don't use switches. Photo or proximity sensors sense a hole or mark on the wheel.

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

What did "the older ones" use?
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
small micro switches
wrote:

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
:I am trying to find a component that does the following: : :(1) Operates as a thumbwheel, i.e. to be mounted so that the edge of :the wheel protrudes from a casing through a slot. :(2) Has mechanical detents, i.e. it doesn't smoothly roll, but clicks :as it is rotated. :(3) Each click will close a pair of contacts, however there are two :pairs of contacts. One pair will operate in one rotation direction, :conversely the other pair in the other direction. :(4) Pressing the wheel will momentarily operate a thrid pair of :contacts. : : :I have tried to find something suitable for doing the above. I thought :I would ask here if anyone has come across something that could do all :that. : :If there are options that are splash and dust proof, then that would :be even better! : :Cheers
Commonly known as thumbwheel or pushwheel rotary switches.
eg. http://www.mouser.com/catalog/specsheets/MS-100205.pdf
You can also get them in push button versions.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Nope, not what I was after.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Polytechforum.com is a website by engineers for engineers. It is not affiliated with any of manufacturers or vendors discussed here. All logos and trade names are the property of their respective owners.