Trigger Assist:

One of the reasons I started Handihelp in the first place was to show people how many different ways there are to solve a particular problem. With the addition of the Trigger Assist design sent to me by my friend Andy Dahmen there are now 7 different devices for firing a weapon on Handihelp. The same can be said for the 8 devices that will hold a weapon in a position; allowing an individual with strength, range of motion or other similar problems to hold a weapon steady so it can be fired.

 

Andy wrote the following "Last time I had company I actually had my friend take a few pictures of my trigger assist on my rifle. It is hard to explain and show, but maybe you get the idea. It definitely would be hard to reproduce, but it might give people some other ideas. The one reason I really like it is that with the little leverage due to the length of the post it does not take too much effort to fire the gun. For me it is very hard not to flinch. I think I am a better shot now than I was before my accident. Of course I am always using a pretty solid rest too."

THE EXPLANATION I WROTE OF HOW THIS WORKS WAS INCORRECT

I put the page on-line so Andy could see it. When he wrote me he said "The one thing that is confusing or not right on your drawings is that the post does not rotate like you have shown. I talk about it rotating on a pin but the rotation really just causes a side to side motion pulling the post into the trigger."

 

My son Mark, who is a Senior Project Engineer, wrote "What it looks like to me is that the bottom of the post has a small, flat machined surface that accepts the small pin that’s being talked about in the description.  I think there must be a small groove machined into the flat bottom of the dowel that slides on the pin. As Andy said, the 'small plate with the screws with springs' keeps pressure on the dowel so that it slides relatively uniformly each time. The one thing I am not able to figure out is what is shown in Photo 2 as 'pin post rotates on.'  It might be screwed through the 'square end of the post” to keep it from falling off."

 

Andy then wrote "Mark is not correct either, there is no grove. The pin I refer to in photo 2 is really a machine screw that slides through the post and is screwed into the body of the assist that is attached to the trigger guard. This allows the post to rotate on the pin. As the post rotates the outside edges push into the small plat which forces the post back into position when released."

Enlargement of right side of trigger assist

Right Side View "The machinist actually drilled and tapped holes in the guns trigger guard that he used to attach the aluminum trigger mechanism (See Right).  The mechanism has a small pin (end of arrow) that the post rotates on that pushes against the trigger of the gun."

Enlargement of left side of trigger assist

Left Side View "This view is from the other side of the gun. You can see the small pin the post rotates on that pulls against the guns trigger. The small plate moves in and out creating pressure on the mechanism. You can see it better in the next view."

Enlargement of underside of trigger assist

Underside View "The way it works is the small plate puts pressure on the post that pulls against the trigger. As you pull back on the post the square end of the post rotates into the small plate. The plate moves in and out on the screws with the springs. The tension can be adjusted by tightening or loosening the small screws with the springs on them."

Andy with his antelope, nice shot

Last year Andy won a hunting trip, provided by Chairbound Hunters for antelope in Wyoming. Using the trigger assist he was able to harvest this antelope from 300+ yards with one shot.

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Taking aim

Winning the trip

Right side

Attachment screws

Antelope

Left side

ATV setup

An elk Andy shot shortly after injury

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Underside

Andy and me

Look at the set up

Talking to school kids

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