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Old 03-28-2018, 02:54 AM
Kent_323is's Avatar
Kent_323is Kent_323is is offline
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Join Date: Jan 2014
Location: Northeast South Dakota
Posts: 97
Default Mechanical Release for EZ lock on All Terrain Track Chair

Hey guys,
I've continued to work on the All Terrain Track Chair (ATTC) that i'm building for a guy who is in a wheelchair.

This is the mechanism I came up with for manually releasing the EZ lock, which holds his wheelchair to the vehicle. Normally these are used in a vehicle, either in a passenger position or in the driving position. There is a 1/2" bolt on his chair that acts as a pin to interface to the EZ Lock assembly. There is then an electronic release solenoid on the EZ Lock for easy release. However, if there is pressure on the pawl, the electronic release will not work. When the ramp is tilted down, the wheelchair is on an incline and there's considerable pressure on that pawl. In case of electrical failure, the electronic release also would not work. Hence the need for a manual override.

This is revision 2 of the release mechanism, and is a huge improvement over the original conglomerate of cables and levers.

Here's the final version:
https://www.youtube.com/watch?v=d3c5WaNxHkw
& a video with some audio narrative:
https://www.youtube.com/watch?v=ZagqQmbU_xM

Thanks
Kent
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My shop and projects: www.kustomsbykent.com
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