[Pistol Crossbow] Trigger design

by cbow101 Mon Feb 06, 2012 10:22 am

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Post n°1

[Pistol Crossbow] Trigger design

by cbow101 Mon Feb 06, 2012 10:22 am

Hello all, Newbie here, great site.

Does naybody have a simple diagram of a pistol crossbow trigger design, would be much appreciated

by **Ivo** Mon Feb 06, 2012 12:34 pm

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Post n°2

Re: [Pistol Crossbow] Trigger design

by Ivo Mon Feb 06, 2012 12:34 pm

Hi and Welcome to the Arbalist. Smile

That's as simple as it gets and is a version of the trigger present in all pistol bows on the market.

[Pistol Crossbow] Trigger design US5215069

[PDF - Download Link]

Has a little safety there too. Smile

[Pistol Crossbow] Trigger design Trig_b11

Basically it just pushes the string over the edge that retains the string.

[Pistol Crossbow] Trigger design Cheap-11

There are some patents for more complicated systems, but as far as I know, they didn't last long due to their complexity and thus impracticality for what is considered a leisure crossbow.

[Pistol Crossbow] Trigger design Trig2_10

[Pistol Crossbow] Trigger design Pistol11

...Of course you can go for something like this, which is right there in the middle and can be safely called - *Best of both Worlds*. Smile

[Pistol Crossbow] Trigger design I-40410

Good Luck. Any questions welcome.

Ivo

Last edited by Ivo on Mon Feb 06, 2012 7:44 pm; edited 1 time in total

by cbow101 Mon Feb 06, 2012 5:02 pm

cbow101

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Post n°3

Re: [Pistol Crossbow] Trigger design

by cbow101 Mon Feb 06, 2012 5:02 pm

Thanks Ivo,

I cannot click the link to the PDF file for the top section.

Please Elaborate......Basically it just pushes the string over the edge that retains the string. Orange and green diagram.. Rolling Eyes

That sounds like there are 2 strings in this design.?

by **Ivo** Mon Feb 06, 2012 7:25 pm

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Post n°4

Re: [Pistol Crossbow] Trigger design

by Ivo Mon Feb 06, 2012 7:25 pm

Have faith my friend - there is only *one* string. Laughing

(and it's marked with a red dot)

...orange is the bolt that the string engages as soon as it's pushed over the edge by the green trigger piece.

Thanks for the laugh - don't take this trigger design thing too seriously. When you don't understand something, try mocking it up. Print the design, cut out the parts, and pin them to a board (placing pins where the axels are) and see how the bits interact.

Don't underestimate this paper mockup step, we all do it and not only to understand, but to also fine tune even more complicated designs. Great stuff this CAD(Cardboard Aided Design) thing. Smile

Good Luck.

Ivo

PS: PDF Link Fixed. It's a patent...and not the only one out there by the way. Wink

by Guest Wed Feb 08, 2012 2:13 pm

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Post n°5

Re: [Pistol Crossbow] Trigger design

by Guest Wed Feb 08, 2012 2:13 pm

I like your idea of using a square pipe for the nut.

Ivo wrote:

This might look like it's not much, but it's quite sufficient (I never went past 175lb during testing though) and the lightest latch that I know of....here's the material/layout.

And for a Pistol bow, a bull-pup trigger would be cool. That way you can bring the nut all the way back to the rear of the pistol for longer draw (faster bolts) and push the grip a little forward for better balance. Smile

[Pistol Crossbow] Trigger design Bullpu10

Pistol bows are sweet...My faves here... Cool

[Pistol Crossbow] Trigger design F1000013

[Pistol Crossbow] Trigger design F1000020

[Pistol Crossbow] Trigger design F1000017

[Pistol Crossbow] Trigger design F1000016

Lol, and this sick puppy from the Gearhead boys!!! [Pistol Crossbow] Trigger design 951629

What'ya know...looks liek they all use a pull-pup style trigger. [Pistol Crossbow] Trigger design 524936

Antho

by **Ivo** Fri Feb 10, 2012 4:50 pm

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Post n°6

Re: [Pistol Crossbow] Trigger design

by Ivo Fri Feb 10, 2012 4:50 pm

Antho wrote:I like your idea of using a square pipe for the nut.

Ivo wrote:

Yeh, that nut is pretty cool, not my idea though...just matching the design to widely available material - those sq. pipes can be found in any Homedepo/Lowes store and even in smaller hardware shops that have steel/aluminum stock bin somewhere in the corner.

Antho wrote:And for a Pistol bow, a bull-pup trigger would be cool. That way you can bring the nut all the way back to the rear of the pistol for longer draw (faster bolts) and push the grip a little forward for better balance.

Antho

There is a problem though...this nuts needs to be spring loaded( so that it resets automatically) and have a stop (so it doesn't spin through and wreck the springs)...AboMickey used a version of this group, but forgot the stop with all the resulting outcomes of inertia taking over upon release. >>> https://thearbalistguild.forumotion.com/t476-my-first-guild-crossbow-post

Hope this helps. Smile

And good to see you on the forum bro [Pistol Crossbow] Trigger design 524936

...how long has it been since we saw each other in person? Razz

You got any new projects started?

Ivo

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