초록 ▼

A firearm firing mechanism is so configured that a hammer is retained by a front retaining block before pressing a trigger; pressing the trigger slightly at a first stage causes a main bar to bias a rear retaining block and the front retaining block backwardly at a relatively smaller angle to releas

A firearm firing mechanism is so configured that a hammer is retained by a front retaining block before pressing a trigger; pressing the trigger slightly at a first stage causes a main bar to bias a rear retaining block and the front retaining block backwardly at a relatively smaller angle to release the hammer in performing a single-shot action; pressing the trigger heavily at a second stage causes the main bar at a relatively longer distance so that the hammer is kept away from the front retaining block when it is returned, and the hammer is secured by the rear retaining block upon a backward displacement of a bolt and backward biasing of the hammer, and a linkage is forced to move the rear retaining block in releasing the hammer for firing when the bolt is forward again, and a continuous multi-shot firing action is performed by means of repeating this operation.

대표청구항 ▼

1. A firearm firing system, comprising a bolt, a hammer, a trigger, a rear retaining block and a front retaining block, said hammer comprising a side retaining lug located at a top side thereof and a hook located at a bottom side thereof, said trigger having a rod member pivotally connected to a top

1. A firearm firing system, comprising a bolt, a hammer, a trigger, a rear retaining block and a front retaining block, said hammer comprising a side retaining lug located at a top side thereof and a hook located at a bottom side thereof, said trigger having a rod member pivotally connected to a top side thereof, said rear retaining block comprising a hook portion at one lateral side thereof, said front retaining block comprising a protruding portion located at a front side thereof, said hook of said hammer being hooked on said protruding portion of said front retaining block when said trigger is not pressed, said trigger being pressable to move said rod member forward and to further cause disengagement of said hook of said hammer from said protruding portion of said front retaining block for enabling said hammer to strike forward, said bolt being moved back immediately to return said hammer and to force said side retaining lug of said hammer into engagement with said hook portion of said rear retaining block after the striking action of said hammer, and then said bolt being immediately moved forward after engagement between said side retaining lug and said hook portion, said rod member being moved back and said side retaining lug of said hammer being disengaged from said hook portion of said rear retaining block and said hook of said hammer being forced into engagement with said protruding portion of said front retaining block after said trigger is released; wherein: said rear retaining block further comprises a stub rod located at an opposite lateral side thereof; said front retaining block further comprises a top abutment portion; the firearm firing system further comprises a main bar having a front end thereof pivotally connected to said rod member, said main bar comprising a retaining portion located at a bottom side of an opposing rear end thereof, said retaining portion having a rear side stopped against said stub rod of said rear retaining block and a front side stopped against said top abutment portion of said front retaining block, said main bar being moved backward to bias said rear retaining block and said front retaining block backward for enabling said side retaining lug of said hammer to be hooked on said hook portion of said rear retaining block when said trigger is pressed to move said rod member forward, said rod member forcing said main bar to bias said rear retaining block and said front retaining block forward when said trigger is released, causing said side retaining lug of said hammer to be disengaged from said hook portion of said rear retaining block and said hammer to move said hook into engagement with said protruding portion of said front retaining block. 2. The firearm firing system as claimed in claim 1, wherein said retaining portion of said main bar is bottom-open notch. 3. The firearm firing system as claimed in claim 1, wherein said main bar comprises a rear top edge located at an opposing top side of the rear end, a recessed portion located at the top side of the rear end near said rear top edge, and a bevel edge located at the top side of the rear end and connected between said rear top edge and said recessed portion, said bevel edge having a relatively lower front side and a relatively higher rear side connected to said rear top edge; the firearm firing system further comprises a linkage disposed at an inner side relative to said main bar, said linkage comprising a front link and a rear link pivotally connected in line, said front link comprising a top lug, said rear link suspending above said rear retaining block, said rear link comprising a rear abutment portion and a bottom push portion, said rear abutment portion being disposed at said rear top edge of said main bar when said trigger is not pressed; said rear retaining block comprises an engagement portion disposed below said bottom push portion of said rear link. 4. The firearm firing system as claimed in claim 1, wherein said main bar comprises a rear top edge located at an opposing top side of the rear end, a recessed portion located at the top side of the rear end near said rear top edge, and a bevel edge located at the top side of the rear end and connected between said rear top edge and said recessed portion, said bevel edge having a relatively lower front side and a relatively higher rear side connected to said rear top edge; the firearm firing system further comprises a linkage disposed at an inner side relative to said main bar, said linkage comprising a front link and a rear link pivotally connected in line, said front link comprising a top lug, said rear link suspending above said rear retaining block, said rear link comprising a rear abutment portion and a push portion, said rear abutment portion being disposed at said bevel edge of said main bar when said trigger is pressed to move said main bar backward in performing a single-shot firing action, said top lug of said front link being forced by said bolt to move said linkage forward and said bottom push portion of said rear link being kept away from said rear retaining block during a forward displacement of said bolt; said rear retaining block comprises an engagement portion disposed below said push portion of said rear link. 5. The firearm firing system as claimed in claim 4, wherein said linkage further comprises a spring member stopped against one end of said rear link opposite to said front link of said linkage for returning said linkage after said linkage having been moved forward. 6. The firearm firing system as claimed in claim 1, wherein said main bar comprises a rear top edge located at an opposing top side of the rear end, a recessed portion located at the top side of the rear end near said rear top edge, and a bevel edge located at the top side of the rear end and connected between said rear top edge and said recessed portion, said bevel edge having a relatively lower front side and a relatively higher rear side connected to said rear top edge; the firearm firing system further comprises a linkage disposed at an inner side relative to said main bar, said linkage comprising a front link and a rear link pivotally connected in line, said front link comprising a top lug, said rear link suspending above said rear retaining block, said rear link comprising a rear abutment portion and a bottom push portion, said rear abutment portion being disposed at said recessed portion of said main bar when said trigger is pressed to move said main bar backward in performing a continuous multi-shot firing action; said rear retaining block comprises an engagement portion disposed at a front side relative to said push portion of said rear link, said top lug of said front link being forced by said bolt to move said linkage forward and said bottom push portion of said rear link being forced to push said rear retaining block and to further force said hook portion of said rear retaining block away from said side retaining lug for enabling said hammer to be returned upon a forward displacement of said bolt, said hook of said hammer being kept away from said protruding portion of said front retaining block when said hammer is returned. 7. The firearm firing system as claimed in claim 6, wherein said linkage further comprises a spring member stopped against one end of said rear link opposite to said front link of said linkage for returning said linkage after said linkage having been moved forward. 8. The firearm firing system as claimed in claim 6, further comprising a follower block, said follower block being supported on a pressure ball to press on a rear side of said front retaining block in such a manner that when said trigger is pressed to move said main bar backward, said front retaining block is forced to push follower block backward; said follower block is forced to impart a pressure to said pressure ball during a backward displacement of said main bar to perform a continuous multi-shot firing action. 9. The firearm firing system as claimed in claim 8, wherein said follower block comprises a bevel portion located at the rear side thereof and kept in contact with said pressure ball and adapted to impart a pressure to said pressure ball upon a backward movement of said front retaining block to push said follower block. 10. The firearm firing system as claimed in claim 1, wherein said main bar comprises a rear top edge located at an opposing top side of the rear end, a recessed portion located at the top side of the rear end near said rear top edge, and a bevel edge located at the top side of the rear end and connected between said rear top edge and said recessed portion, said bevel edge having a relatively lower front side and a relatively higher rear side connected to said rear top edge; the firearm firing system further comprises a linkage disposed at an inner side relative to said main bar, said linkage comprising a front link and a rear link pivotally connected in line, said front link comprising a top lug, said rear link comprising a rear abutment portion and a bottom push portion, said rear abutment portion being disposed at said bevel edge of said main bar when said trigger is pressed to move said main bar backward in performing a single-shot firing action; said top lug of said front link being forced by said bolt to move said linkage forward and said bottom push portion of said rear link being kept away from said rear retaining block upon a forward displacement of said bolt; said rear retaining block comprises an engagement portion disposed below said bottom push portion of said rear link such that when said trigger is pressed to move said main bar backward to a distance larger than the moving distance in said single-shot firing action, said rear abutment portion is disposed at said recessed portion of said main bar and said bottom push portion is disposed at a rear side relative to said engagement portion; said bolt is moved forward, said bolt pushes said top lug of said front link to move said linkage forward, forcing said bottom push portion of said rear link to push said rear retaining block forward in moving said hook portion away from said side retaining lug of said hammer for enabling said hammer to be returned, said hook of said hammer being kept away from said protruding portion of said front retaining block when said hammer is returned. 11. The firearm firing system as claimed in claim 10, wherein said linkage further comprises a spring member stopped against one end of said rear link opposite to said front link of said linkage for returning said linkage after said linkage having been moved forward. 12. The firearm firing system as claimed in claim 10, further comprising a follower block, said follower block being supported on a pressure ball to press on a rear side of said front retaining block in such a manner that when said trigger is pressed to move said main bar backward, said front retaining block is forced to push follower block backward; said follower block is forced to impart a pressure to said pressure ball during a backward displacement of said main bar to perform a continuous multi-shot firing action. 13. The firearm firing system as claimed in claim 12, wherein said follower block comprises a bevel portion located at the rear side thereof and kept in contact with said pressure ball and adapted to impart a pressure to said pressure ball upon a backward movement of said front retaining block to push said follower block.