초록 ▼

A firearm with replaceable grip in one embodiment includes a grip frame, a grip, and a rotary camlock mechanism configured to lock and unlock the grip from the grip frame. The camlock mechanism may be rotated between locked and unlocked positions preventing or enabling removal of the grip from the g

A firearm with replaceable grip in one embodiment includes a grip frame, a grip, and a rotary camlock mechanism configured to lock and unlock the grip from the grip frame. The camlock mechanism may be rotated between locked and unlocked positions preventing or enabling removal of the grip from the grip frame. In one embodiment, the camlock mechanism includes a movable blocking surface engageable with the grip to block its removal. The camlock mechanism in one configuration may comprise a rotatable locking cam that defines the blocking surface. A camtrack may be provided to convert rotary motion of the cam into linear displacement relative to the grip frame for selectively projecting or retracting the blocking surface relative to the frame.

대표청구항 ▼

1. A firearm with replaceable grip comprising: a grip frame defining a grip mounting axis;a grip configured for mounting on the grip frame; anda rotary camlock mechanism configured and operable to lock and unlock the grip from the grip frame, the camlock mechanism rotationally movable between a firs

1. A firearm with replaceable grip comprising: a grip frame defining a grip mounting axis;a grip configured for mounting on the grip frame; anda rotary camlock mechanism configured and operable to lock and unlock the grip from the grip frame, the camlock mechanism rotationally movable between a first locked position preventing removal of the grip from the grip frame and a second unlocked position allowing removal of the grip from the grip frame;wherein the camlock mechanism comprises a rotatable locking cam rotatably mounted in the grip frame, the locking cam configured and positioned to engage the grip when the camlock mechanism is the locked position and to disengage the grip when the camlock mechanism is in the unlocked position;wherein the locking cam is movably received in a rearwardly open circular receptacle formed in the grip frame. 2. The firearm according to claim 1, wherein the camlock mechanism includes a blocking surface moveable into and out of engagement with an abutment surface on the grip to prevent removal of the grip from the grip frame. 3. The firearm according to claim 1, wherein the locking cam is configured so that rotating the locking cam in opposing directions linearly moves the locking cam transversely to the grip mounting axis to selectively engage or disengage the grip. 4. The firearm according to claim 3, wherein the locking cam includes an inclined cam track that converts rotary motion of the locking cam into the transverse linear motion. 5. The firearm according to claim 4, wherein the grip frame includes a cam protrusion which slides in the cam track configured to create the transverse linear motion when the locking cam is rotated. 6. The firearm according to claim 1, wherein the locking cam is cylindrical in shape. 7. The firearm according to claim 1, wherein the locking cam defines a blocking surface that is movable into and out of the receptacle by rotating the locking cam, the blocking surface projected outward from the receptacle to engage an abutment surface on the grip when the camlock mechanism is in the locked position, and the blocking surface retracted inside the receptacle when the camlock mechanism is in the unlocked position to allow removal of the grip from the grip frame. 8. The firearm according to claim 1, further comprising a first pair of guide slots formed on the grip frame which slideably receive a first pair of guide rails formed on the grip, wherein the grip cannot be removed from grip frame in a direction transverse to the grip axis when the rails are in the slots. 9. The firearm according to claim 8, wherein the guide slots of the first pair are laterally spaced apart and the guide slots of the second pair are laterally spaced apart. 10. The firearm according to claim 1, further comprising a second pair of guide slots formed on the grip frame which are axially spaced apart from the first pair of guide slots along the grip axis, and a second pair of guide rails formed on the grip which are axially spaced apart from the first pair of guide rails, the second pair of guide slots configured to slideably receive the second pair of guide rails. 11. The firearm according to claim 1, further comprising the grip includes a pair of tabs formed proximate to a top end of the grip which are slideably received in a mating pair of pockets formed proximate to a rear end of the grip frame. 12. A firearm with replaceable grip system comprising: a grip frame defining a grip mounting axis;a grip removably mounted on the grip frame;an abutment surface formed on the grip;a rotary locking cam rotatably received in a complementary configured rearwardly open circular receptacle in the grip frame, the locking cam including a blocking surface movable between a projecting locked position and a retracted unlocked position;the locking cam including an inclined cam track configured to engage the grip frame for converting rotational movement of the locking cam into linear movement with respect to the receptacle;wherein rotating the locking cam in a first direction moves the blocking surface into alignment with the abutment surface forming the locked position that prevents removal of the grip from the grip frame, and rotating the locking cam in a second direction removes the blocking surface from alignment with the abutment surface forming the unlocked position that allows removal of the grip from the grip frame. 13. The firearm according to claim 12, wherein the blocking surface of the locking cam protrudes outwards from the receptacle to engage the abutment surface of the grip in the locked position, and wherein the blocking surface retreats into the receptacle to disengage the abutment surface in the unlocked position. 14. The firearm according to claim 12, wherein the locking cam has a cylindrical shape and the cam track is arcuately formed on an outer circumference of the locking cam. 15. The firearm according to claim 12, wherein the grip includes a resilient locking cantilever arm engageable with a detent pocket formed on the locking cam, the locking arm configured to retain the blocking surface of locking cam in the locked position. 16. The firearm according to claim 12, wherein the abutment surface of the grip is positioned above the locking cam when the locking cam is in the locked position. 17. The firearm according to claim 12, wherein the grip includes a cam operating aperture that is axially aligned with the receptacle of the grip frame when the grip is fully mounted on the firearm for operating the locking cam. 18. The firearm according to claim 12, wherein the receptacle is formed on a metal insert mounted on the grip frame and the locking cam is also formed of metal. 19. The firearm according to claim 12, wherein the grip is U-shaped in cross section. 20. A method for mounting a replaceable grip on a firearm, the method comprising: providing a grip frame including a grip mounting axis and a rotary locking cam rotated to an unlocked position;providing a grip including an abutment surface;positioning the grip on the grip frame in a removal position wherein the abutment surface is located in a first axial position along the grip mounting axis;sliding the grip on the grip frame to a mounting position wherein the abutment surface is located in a second axial position along the grip mounting axis; androtating the locking cam from the unlocked position to a locked position thereby moving a blocking surface on the locking cam into axial alignment with the abutment surface of the grip between the first and second axial positions;wherein the grip is not removable from the grip frame when the locking cam is in the locked position;wherein the locking cam is movably received in a rearwardly open circular receptacle formed in the grip frame. 21. The method according to claim 20, further comprising a camtrack configured to convert rotational motion of the locking cam during the rotating step into linear displacement of the locking cam transverse to the grip mounting axis. 22. The method according to claim 20, wherein the sliding step further includes slideably inserting a pair of guide rails on the grip into a mating pair of guide slots on the grip frame, the guide slots configured to engage the guide rails preventing removal of the grip from the grip frame in a transverse direction to the grip axis.