Trigger Sear relationship Q??

alvin · 01-18-2009, 08:39 PM

The L-shaped bar inside the side plate can be considered to be trigger's extension. When trigger is pushed, the L-bar pushes down the spring loaded head of the sear to release the striker. "Bang". The barrel extension recoils, the sear goes along with it, and the L-bar does not control the sear anymore. Sear returns to its 'locking' position under the force of sear spring and locks the striker again. After everything returns to their 'normal' position, the head of the sear is blocked by the L-bar because the trigger is still in the 'pushed-down' state. The trigger must be released so the sear head could go under the L-bar again for the next shot. So, semi-auto.

One item might be interesting to think.... if design a "Schnellfeuer-Parabellum", what's the best implementation? Historically, there was full-auto version of Borchardt, recorded in John Walter's book. Not legal to build one, but on paper should be OK.

DYNOMIKE · 01-18-2009, 09:10 PM

Thank you Alvin...
O.K. so when/what does the DISCONECTOR play it's part and what does it do in this application?

Please keep in mind I "DON"T" have a Sideplate (or it's parts) for my LUGER yet.. They were missing when I bought the gun.. It might be easy to understand where these parts in front of me so I am trying to figure this out kind of blindly.. The parts are inbound though and it may very well all make sense to me then?

The TIGGER BAR is not spring loaded correct, if not is it returned to it's position by the Spring of the SEAR?

alvin · 01-18-2009, 09:26 PM

The L-shaped trigger bar is not spring loaded, but the trigger is spring loaded, and the the shorter leg of the L-bar is inserted between the "sleeping U" at the tip of the trigger. When the trigger is released, it returns to its forward position under the force of the trigger spring, and trigger "sleeping U" pushes the shorter leg of L-bar up, so the longer leg of the L-bar goes outward, sear head (disconnector) now has empty space to return to its forward position under the L-bar's long leg again.

So, in this application, the trigger controls the sear via the disconnector. By turning disconnector "on" and "off", semi-auto was enforced -- you have to release the trigger to reset the disconnector to fire again.

Pistol is like wristwatch. Every gear has been standardized, implemented in a little different ways, but virtually under the same principals.

01-18-2009, 08:39 PM	#1
alvin User Join Date: Jul 2007 Location: US Posts: 3,843 Thanks: 132 Thanked 729 Times in 438 Posts	The L-shaped bar inside the side plate can be considered to be trigger's extension. When trigger is pushed, the L-bar pushes down the spring loaded head of the sear to release the striker. "Bang". The barrel extension recoils, the sear goes along with it, and the L-bar does not control the sear anymore. Sear returns to its 'locking' position under the force of sear spring and locks the striker again. After everything returns to their 'normal' position, the head of the sear is blocked by the L-bar because the trigger is still in the 'pushed-down' state. The trigger must be released so the sear head could go under the L-bar again for the next shot. So, semi-auto. One item might be interesting to think.... if design a "Schnellfeuer-Parabellum", what's the best implementation? Historically, there was full-auto version of Borchardt, recorded in John Walter's book. Not legal to build one, but on paper should be OK.

01-18-2009, 09:10 PM	#2
DYNOMIKE User Join Date: Jan 2009 Location: South Fl Posts: 16 Thanks: 1 Thanked 0 Times in 0 Posts	Thank you Alvin... O.K. so when/what does the DISCONECTOR play it's part and what does it do in this application? Please keep in mind I "DON"T" have a Sideplate (or it's parts) for my LUGER yet.. They were missing when I bought the gun.. It might be easy to understand where these parts in front of me so I am trying to figure this out kind of blindly.. The parts are inbound though and it may very well all make sense to me then? The TIGGER BAR is not spring loaded correct, if not is it returned to it's position by the Spring of the SEAR?

01-18-2009, 09:26 PM	#3
alvin User Join Date: Jul 2007 Location: US Posts: 3,843 Thanks: 132 Thanked 729 Times in 438 Posts	The L-shaped trigger bar is not spring loaded, but the trigger is spring loaded, and the the shorter leg of the L-bar is inserted between the "sleeping U" at the tip of the trigger. When the trigger is released, it returns to its forward position under the force of the trigger spring, and trigger "sleeping U" pushes the shorter leg of L-bar up, so the longer leg of the L-bar goes outward, sear head (disconnector) now has empty space to return to its forward position under the L-bar's long leg again. So, in this application, the trigger controls the sear via the disconnector. By turning disconnector "on" and "off", semi-auto was enforced -- you have to release the trigger to reset the disconnector to fire again. Pistol is like wristwatch. Every gear has been standardized, implemented in a little different ways, but virtually under the same principals.