Trigger mechanism with momentary automatic safety

Patent metadata

Field	Value
Publication number	US-9618289-B1
Application number	US-201514869013-A
Country	US
Kind code	B1
Filing date	Sep 29, 2015
Priority date	Sep 29, 2015
Publication date	Apr 11, 2017
Grant date	Apr 11, 2017

Abstract

In general terms, this disclosure is directed to a trigger mechanism with a mode selector element that is placeable in a safety mode, a semi-automatic fire mode, and a momentary automatic fire mode. In one possible configuration and by non-limiting example, the mode selector element includes a selector block and a handle portion extending from the selector block to allow the selector block to be rotated between the different modes. The mode selector element is configured such that the selector block can be indexed into the safety mode and the fire mode. The mode selector element is additionally configured such that the selector mode is spring biased to automatically rotate from the momentary automatic fire mode to the fire mode when the handle portion is not constrained by a force, such as when an operator releases the handle portion.

First claim

What is claimed is:

1. A mode selector element for a trigger mechanism having a spring bias, the mode selector element comprising:
a selector block defining a first detent recess, a second detent recess, and a ramped surface proximate the second detent recess on a side opposite from the first detent recess; and
a selector lever extending from the selector block;
wherein the selector block is rotatable by the selector lever among a first position in which the first detent recess is configured to receive the spring bias, a second position in which the second detent recess is configured to receive the spring bias, and a third position in which the ramped surface is configured to engage the spring bias such that the selector block is biased to automatically rotate from the third position to the second position; and
wherein the first position corresponds to a safety mode of the trigger mechanism, the second position corresponds to a firing mode of the trigger mechanism, and the third position corresponds to an automatic firing mode of the trigger mechanism.

2. The mode selector element of claim 1 , wherein the selector lever comprises a handle portion and a wing portion oriented in a non-parallel relationship to the handle portion, the handle portion being configured to engage with a first stop member of a firearm in which the trigger mechanism is installed when the selector block is in the first position, the wing portion being configured to engage with a second stop member of the firearm when the selector block is in the third position.

3. The mode selector element of claim 1 , wherein the selector lever is mechanically fastened to the selector block.

4. The mode selector element of claim 1 , wherein the selector block has a first surface arrangement for engaging a disconnector of the trigger mechanism and a second surface arrangement for engaging an auto sear assembly of the trigger mechanism.

5. A trigger mechanism for a firearm comprising the mode selector element of claim 1 and a spring bias.

6. The trigger mechanism of claim 5 , wherein the spring bias comprises a detent pin having a tip portion and a spring urging the detent pin in a direction towards the tip portion.

7. The trigger mechanism of claim 6 , wherein the tip portion comprises an angled surface.

8. The trigger mechanism of claim 7 , wherein when the selector block is rotated into the third position the angled surface is in contact with and parallel to the ramped surface of the selector block.

9. A firearm comprising the trigger mechanism of claim 5 .

Assignees

• Whg Properties Llc

Inventors

• Geissele William H

Classifications

• F41A19/10

  Triggers; Trigger mountings · CPC title

• F41A19/12

  Sears; Sear mountings · CPC title

• F41A17/46

  Trigger safeties, i.e. means for preventing trigger movement (F41A17/02 - F41A17/40 take precedence) · CPC title

• F41A19/46 Primary

  Arrangements for the selection of automatic or semi-automatic fire · CPC title