Rotating gun bolt assembly
11680760 · 2023-06-20
Inventors
Cpc classification
F41A3/26
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F41F1/10
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F41A15/14
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F41A3/46
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
International classification
Abstract
A rotating gun bolt assembly includes a main body subassembly and a head subassembly. The main body subassembly including a helical receiving pocket. The head subassembly includes a head end and a rear end. The rear end of the head subassembly includes a helical tang extending from the rear end and mated with the helical receiving pocket in the main body subassembly. The helical tang includes a straight side, a distal edge and a helical side. The straight side extends perpendicular from the rear end of the head subassembly. The distal edge extends perpendicular to the straight side, where the distal edge is parallel with the rear end of the head subassembly. The helical side extends helically from the rear end of the head subassembly to the distal edge of the helical tang.
Claims
1. A rotating gun bolt assembly comprising: a main body subassembly including a helical receiving pocket; a head subassembly including a head end and a rear end, the rear end of the head subassembly including a helical tang extending from the rear end and mated inside the helical receiving pocket in the main body subassembly; the helical tang including: a straight side extending perpendicular from the rear end of the head subassembly; a distal edge extending perpendicular to the straight side, where the distal edge is parallel with the rear end of the head subassembly; and a helical side extending helically from the rear end of the head subassembly to the distal edge of the helical tang; wherein, when the head subassembly and the main body subassembly are compressed, the helical receiving pocket exerts tangential forces on the distal edge of the helical tang configured to rotate the head subassembly about a longitudinal axis of the rotating gun bolt assembly.
2. The rotating gun bolt assembly of claim 1, wherein: the main body subassembly including lateral main body slots on opposite main body sides of the main body subassembly, the lateral main body slots are configured to move the main body subassembly longitudinally along guides of a rotor assembly; the head subassembly including lateral head slots on opposite head sides of the head subassembly, the lateral head slots are configured to move the head subassembly longitudinally along the guides; and wherein, twisting of the head subassembly about the longitudinal axis is accomplished by translating compression forces between the head subassembly and the main body subassembly into a rotational force imparted into the main body subassembly and head subassembly along the longitudinal axis parallel to the guides.
3. The rotating gun bolt assembly of claim 2, whereby a twisting motion is imparted to the head subassembly as the head subassembly translates longitudinally along the main body subassembly while imparting the rotational force back into the guides throughout longitudinal travel along the longitudinal axis.
4. The rotating gun bolt assembly of claim 1, wherein the helical tang on the head subassembly and lateral main body slots on the main body subassembly are configured as such that compression loads and rotational loads implied are imparted to the head subassembly and the main body subassembly as tangential loads are divided across the head subassembly and the main body subassembly through helical mating surfaces created by the helical receiving pocket and the helical tang, while supported by a mass of material with a base having a width, and a length of the helical tang.
5. The rotating gun bolt assembly of claim 1 further comprising a firing pin subassembly positioned within an axial bore along a longitudinal axis of the rotating gun bolt assembly through the main body subassembly and the head subassembly; and the firing pin subassembly is configured to support axial and radial constraint between the main body subassembly and the head subassembly.
6. The rotating gun bolt assembly of claim 5, wherein the firing pin subassembly including: a firing pin having a forward primer striking end initially contained in the head subassembly, the firing pin is biased from the main body subassembly toward the head subassembly via a firing pin spring, the firing pin including a rear axial slot and a forward hole; an aft driving cross pin positioned through the rear axial slot of the firing pin, the firing pin spring biases the firing pin via the aft driving cross pin; a forward driving pin positioned through the forward hole of the firing pin; and wherein, the firing pin is configured to freely move within the axial bore within limitations of the aft driving cross pin and the forward driving pin.
7. The rotating gun bolt assembly of claim 6, wherein: the main body subassembly including a top driving wedge and a bottom driving wedge configured to control movement of the aft driving cross pin therein, each of the top driving wedge and the bottom driving wedge including a triangular shape with a longitudinal surface, a transverse surface, and a hypotenuse surface; and the head subassembly including an L-shaped slot configured to control the movement of the forward driving pin therein, the L-shaped slot including an L-shape with a longitudinal leg, and a transverse leg.
8. The rotating gun bolt assembly of claim 7, wherein the main body subassembly further including a cam bearing positioned thereon, the cam bearing is configured to drive the axial movement of the rotating gun bolt assembly.
9. The rotating gun bolt assembly of claim 8, wherein: while in a feed position, the main body subassembly and the head subassembly are at a maximum axial separation where the firing pin aligns and supports axial and radial constraint of the main body subassembly and the head subassembly with the aft driving cross pin against a longitudinal forward apex between the longitudinal surface and the hypotenuse surface of the top driving wedge and the bottom driving wedge, and the forward driving pin is located in a distal end of the transverse leg of said L-shaped slot, the firing pin spring is in a static compression attributed to the aft driving cross pin and the rear axial slot of the firing pin; when the firing pin spring is compressed by the main body subassembly a rotational force is provided by the helical tang and the helical receiving pocket, a tangential force causes the forward driving pin to move into a scared position, where the main body subassembly and the head subassembly are at a minimum axial separation with the head subassembly having been rotated around the firing pin; and when the firing pin spring is continued to be compressed by the main body subassembly with the aft driving cross pin located against the longitudinal surface of the top driving wedge and the bottom driving wedge, the tangential force causes the forward driving pin into the longitudinal leg of the L-shaped slot, where the firing pin is biased further into the head subassembly and the forward primer striking end of the firing pin extending forward of a forward bolt face thereby igniting a primer.
10. The rotating gun bolt assembly of claim 9, wherein during an extraction function, the forward driving pin is forced to the traverse leg of the L-shaped slot to positively withdraw the forward primer striking end into the head subassembly, and during a reset function the aft driving cross pin is forced relatively forward along the hypotenuse surface of the top driving wedge and the bottom driving wedge to swing the forward driving pin into the distal end of the transverse leg of said L-shaped slot.
11. The rotating gun bolt assembly of claim 1, wherein the head subassembly further includes a head body having a forward bolt face and extractor lugs.
12. A rotating gun bolt assembly comprising: a main body subassembly including a helical receiving pocket, the main body subassembly including lateral main body slots on opposite main body sides of the main body subassembly, the lateral main body slots are configured to move the main body subassembly longitudinally along guides of a rotor assembly; a head subassembly including a head end and a rear end, the rear end of the head subassembly including a helical tang extending from the rear end and mated inside the helical receiving pocket in the main body subassembly, the head subassembly including lateral head slots on opposite head sides of the head subassembly, the lateral head slots are configured to move the head subassembly longitudinally along the guide, the head subassembly further including a head body having a forward bolt face and extractor lugs; the helical tang including: a straight side extending perpendicular from the rear end of the head subassembly; a distal edge extending perpendicular to the straight side, where the distal edge is parallel with the rear end of the head subassembly; a helical side extending helically from the rear end of the head subassembly to the distal edge of the helical tang; a firing pin subassembly positioned within an axial bore along a longitudinal axis of the rotating gun bolt assembly through the main body subassembly and the head subassembly, the firing pin subassembly is configured to support axial and radial constraint between the main body subassembly and the head subassembly, the firing pin subassembly including: a firing pin having a forward primer striking end initially contained in the head subassembly, the firing pin is biased from the main body subassembly toward the head subassembly via a firing pin spring, the firing pin including a rear axial slot and a forward hole; an aft driving cross pin positioned through the rear axial slot of the firing pin, the firing pin spring biases the firing pin via the aft driving cross pin; a forward driving pin positioned through the forward hole of the firing pin; wherein, the firing pin is configured to freely move within the axial bore within limitations of the aft driving cross pin and the forward driving pin; the main body subassembly including a top driving wedge and a bottom driving wedge configured to control movement of the aft driving cross pin therein, each of the top driving wedge and the bottom driving wedge including a triangular shape with a longitudinal surface, a transverse surface, and a hypotenuse surface; the head subassembly including an L-shaped slot configured to control the movement of the forward driving pin therein, the L-shaped slot including an L-shape with a longitudinal leg, and a transverse leg; the main body subassembly further including a cam bearing positioned thereon, the cam bearing is configured to drive axial movement of the rotating gun bolt assembly; wherein, when the head subassembly and the main body subassembly are compressed, the helical receiving pocket exerts tangential forces on the distal edge of the helical tang configured to rotate the head subassembly about the longitudinal axis of the rotating gun bolt assembly; wherein, twisting of the head subassembly about the longitudinal axis is accomplished by translating compression forces between the head subassembly and the main body subassembly into a rotational force imparted into the main body subassembly and head subassembly along the longitudinal axis parallel to the guides; whereby a twisting motion is imparted to the head subassembly as the head subassembly translates longitudinally along the main body subassembly while imparting the rotational force back into the guides throughout longitudinal travel along the longitudinal axis; wherein the helical tang on the head subassembly and lateral main body slots on the main body subassembly are configured as such that compression loads and rotational loads implied are imparted to the head subassembly and the main body subassembly as tangential loads are divided across the head subassembly and the main body subassembly through helical mating surfaces created by the helical receiving pocket and the helical tang, while supported by a mass of material with a base having a width and a length of the helical tang; wherein: while in a feed position, the main body subassembly and the head subassembly are at a maximum axial separation where the firing pin aligns and supports axial and radial constraint of the main body subassembly and the head subassembly with the aft driving cross pin against the longitudinal forward apex between the longitudinal surface and the hypotenuse surface of the top driving wedge and the bottom driving wedge, and the forward driving pin is located in a distal end of the transverse leg of said L-shaped slot, the firing pin spring is in a static compression attributed to the aft driving cross pin and the rear axial slot of the firing pin; when the firing pin spring is compressed by the main body subassembly until the rotational force created by the helical tang and the helical receiving pocket cause the forward driving pin to move into a scared position, where the main body subassembly and the head subassembly are at a minimum axial separation with the head subassembly having been rotated around the firing pin; when the firing pin spring is continued to be compressed by the main body subassembly with the aft driving cross pin located against the longitudinal surfaces of the top driving wedge and the bottom driving wedge, the tangential forces causes the forward driving pin into the longitudinal leg of the L-shaped slot, where the firing pin is biased further into the head subassembly and the forward primer striking end of the firing pin extending forward of the forward bolt face thereby igniting a primer; during an extraction function, the forward driving pin is forced to the traverse leg of the L-shaped slot to positively withdraw the forward primer striking end into the head subassembly; and during a reset function, the aft driving cross pin is forced relatively forward along the hypotenuse surface of the top driving wedge and the bottom driving wedge to swing the forward driving pin into the distal end of the transverse leg of said L-shaped slot.
13. A firearm comprising: a rotating gun bolt assembly comprising: a main body subassembly including a helical receiving pocket; a head subassembly including a head end and a rear end, the rear end of the head subassembly including a helical tang extending from the rear end and mated inside the helical receiving pocket in the main body subassembly; the helical tang including: a straight side extending perpendicular from the rear end of the head subassembly; a distal edge extending perpendicular to the straight side, where the distal edge is parallel with the rear end of the head subassembly; and a helical side extending helically from the rear end of the head subassembly to the distal edge of the helical tang; wherein, when the head subassembly and the main body subassembly are compressed, the helical receiving pocket exerts tangential forces on the distal edge of the helical tang configured to rotate the head subassembly about a longitudinal axis of the rotating gun bolt assembly.
14. The firearm of claim 13, wherein: the main body subassembly including lateral main body slots on opposite main body sides of the main body subassembly, the lateral main body slots are configured to move the main body subassembly longitudinally along guides of a rotor assembly; the head subassembly including lateral head slots on opposite head sides of the head subassembly, the lateral head slots are configured to move the head subassembly longitudinally along the guides; wherein, twisting of the head subassembly about the longitudinal axis is accomplished by translating compression forces between the head subassembly and the main body subassembly into a rotational force imparted into the main body subassembly and head subassembly along the longitudinal axis parallel to the guides; whereby a twisting motion is imparted to the head subassembly as it the head subassembly translates longitudinally along the main body subassembly while imparting the rotational forces back into the guides throughout longitudinal travel along the longitudinal axis; and wherein the helical tang on the head subassembly and lateral main body slots on the main body subassembly are configured as such that compression loads and rotational loads implied are imparted to the head subassembly and the main body subassembly as tangential loads are divided across the head subassembly and the main body subassembly through helical mating surfaces created by the helical receiving pocket and the helical tang, while supported by a mass of material with a base having a width, and a length of the helical tang.
15. The firearm of claim 14 further comprising a firing pin subassembly positioned within an axial bore along the longitudinal axis of the rotating gun bolt assembly through the main body subassembly and the head subassembly; and the firing pin subassembly is configured to support axial and radial constraint between the main body subassembly and the head subassembly.
16. The firearm of claim 15, wherein the firing pin subassembly including: a firing pin having a forward primer striking end initially contained in the head subassembly, the firing pin is biased from the main body subassembly toward the head subassembly via a firing pin spring, the firing pin including a rear axial slot and a forward hole; an aft driving cross pin positioned through the rear axial slot of the firing pin, the firing pin spring biases the firing pin via the aft driving cross pin; a forward driving pin positioned through the forward hole of the firing pin; and wherein, the firing pin is configured to freely move within the axial bore within limitations of the aft driving cross pin and the forward driving pin.
17. The firearm of claim 16, wherein: the main body subassembly including a top driving wedge and a bottom driving wedge configured to control movement of the aft driving cross pin therein, each of the top driving wedge and the bottom driving wedge including a triangular shape with a longitudinal surface, a transverse surface, and a hypotenuse surface; and the head subassembly including an L-shaped slot configured to control the movement of the forward driving pin therein, the L-shaped slot including an L-shape with a longitudinal leg, and a transverse leg.
18. The firearm of claim 17, wherein the main body subassembly further including a cam bearing positioned thereon, the cam bearing is configured to drive the axial movement of the rotating gun bolt assembly; wherein: while in a feed position, the main body subassembly and the head subassembly are at a maximum axial separation where the firing pin aligns and supports axial and radial constraint of the main body subassembly and the head subassembly with the aft driving cross pin against a longitudinal forward apex between the longitudinal surface and the hypotenuse surface of the top driving wedge and the bottom driving wedge, and the forward driving pin is located in a distal end of the transverse leg of said L-shaped slot, the firing pin spring is in a static compression attributed to the aft driving cross pin and the rear axial slot of the firing pin; when the firing pin spring is compressed by the main body subassembly until the rotational force created by the helical tang and the helical receiving pocket, the tangential force causes the forward driving pin to move into a scared position, where the main body subassembly and the head subassembly are at a minimum axial separation with the head subassembly having been rotated around the firing pin; and when the firing pin spring is continued to be compressed by the main body subassembly with the aft driving cross pin located against longitudinal surfaces of the top driving wedge and the bottom driving wedge, the tangential force causes the forward driving pin into the longitudinal leg of the L-shaped slot, where the firing pin is biased further into the head subassembly and the forward primer striking end of the firing pin extending forward of forward bolt face thereby igniting a primer.
19. The firearm of claim 18, wherein during an extraction function, the forward driving pin is forced to the traverse leg of the L-shaped slot to positively withdraw the forward primer striking end into the head subassembly, and during a reset function the aft driving cross pin is forced relatively forward along the hypotenuse surface of the top driving wedge and the bottom driving wedge to swing the forward driving pin into the distal end of the transverse leg of said L-shaped slot.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
(1) The present disclosure will be better understood by reading the Detailed Description with reference to the accompanying drawings, which are not necessarily drawn to scale, and in which like reference numerals denote similar structure and refer to like elements throughout, and in which:
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(28) It is to be noted that the drawings presented are intended solely for the purpose of illustration and that they are, therefore, neither desired nor intended to limit the disclosure to any or all of the exact details of construction shown, except insofar as they may be deemed essential to the claimed disclosure.
DETAILED DESCRIPTION
(29) Referring now to
(30) Referring to
(31) Main body subassembly 12 may be included as a piece or part of rotating gun bolt assembly 10. Main body subassembly 12 may be for providing the main portion or part of rotating gun bolt assembly 10. Main body subassembly 12 may include helical receiving pocket 14.
(32) Head subassembly 24 may be included as a piece or part of rotating gun bolt assembly 10. Head subassembly 24 may be for providing head portion or part of rotating gun bolt assembly 10. Head subassembly 24 may include head end 26 and rear end 28. Rear end 28 of head subassembly 24 may include helical tang 30 extending from rear end 28 and mated with helical receiving pocket 14 in main body subassembly 12. In select embodiments, helical tang 30 may include straight side 42, distal edge 44, and helical side 46. Straight side 42 of helical tang 30 may extend perpendicular from rear end 28 of head subassembly 24. Distal edge 44 of helical tang 30 may extend perpendicular to straight side 42 of helical tang 30, where distal edge 44 of helical tang 30 may be parallel with rear end 28 of head subassembly 24. Helical side 46 of helical tang 30 may extend helically from rear end 28 of head subassembly 24 to distal edge 44 of helical tang 30. In select embodiments of rotating gun bolt assembly 10, as shown in the Figures, head subassembly 24 may further include head body 36 having forward bolt face 38 with a hole therein for receiving forward primer striking end 56 of firing pin 54, and extractor lugs 40 configured for extracting the casing after firing.
(33) One feature of rotating gun bolt assembly 10 may be that when head subassembly 24 and main body subassembly 12 are compressed (see
(34) As shown in
(35) Another feature of rotating gun bolt assembly 10 may be that helical tang 30 on head subassembly 24 and lateral main body slots 16 on main body subassembly 12 may be configured as such that compression loads 114 and rotational loads 115 implied are imparted to the respective main head subassembly 24 and main body subassembly 12 as tangential loads 111 and divided across head subassembly 24 and main body subassembly 12 through helical mating surfaces 117 created by helical receiving pocket 14 and helical tang 30. As best shown in
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(40) In select embodiments of rotating gun bolt assembly 10, main body subassembly 12 may further include cam bearing 88 positioned thereon. Cam bearing 88 may be configured to drive the axial movement of rotating gun bolt assembly 10 by means of an elliptical cam path (not shown) in a main housing (not shown) of firearm 94, as one skilled in the art clearly understands, like as commonly used for Gatling gun, miniguns, m134, GAU-2, or the like.
(41) Referring now specifically to
(42) Referring now specifically to
(43) Referring now to
(44) Referring now specifically to
(45) In another aspect, the instant disclosure embraces rotating gun bolt assembly 10 in any embodiment and/or combination of embodiments shown and/or described herein, like as shown in
(46) In another aspect, the instant disclosure embraces firearm 94 with rotating gun bolt assembly 10 in any embodiment and/or combination of embodiments shown and/or described herein, like as shown in
(47) In sum, in view of the foregoing disadvantages inherent in the known types of bolts, like the Dillon Bolt and the GE Bolt, the instant disclosure provides a firearm bolt, or rotating gun bolt assembly 10. Rotating gun bolt assembly 10 may provide stronger and fatigue resistant interface of the bolt head and body, like via helical mating surfaces 117 created between helical tang 30 and helical receiving pocket 14. The present disclosure's general purpose may be to provide a new and improved firearm bolt that is backwards compatible with existing M-134 systems and yet even more sturdy and reliable than the prior art bolt systems.
(48) The present disclosure may be an improvement on both the GE Bolt and the Dillon Bolt structures in that the twisting motion of the bolt head is accomplished by translating the compression force into rotational force imparting the rotational force into head subassembly 24 and main body subassembly 12 along longitudinal axis 52 parallel to guides 20, thereby imparting a twisting motion to head subassembly 24 as it translates along main body subassembly 24 while imparting the forces back into the main structure of the rotor assembly 22 that holds and guides rotating gun bolt assembly 10 throughout the longitudinal travel along the axis.
(49) To accomplish these objectives, rotating gun bolt assembly 10 comprises head subassembly 24 with a large helical tang 30 and main body subassembly 12 has a corresponding helical receiving pocket 14 while the firing pin 54 is free to move, with in the limitations of the driving pins 64 and 66, through both the head subassembly 24 and main body subassembly 12. The disclosed design of rotating gun bolt assembly 10 may reduce the concentrated rotational and compression loads 114 on the head structure greatly by increasing the width and height of the torque arm (helical tang 30) of interfacing structures, but also further dividing the torque along the entire surface of the helical arm (helical tang 30) and pocket (helical receiving pocket 14), torque differentials are imparted to the body in a tangential load versus the previous perpendicular designs, along the twist imparting mechanism. Also, since the twist mechanism is in the exterior of the firearm bolt, it is easily manufactured to be compatible with current M-134 designs, but also easily incorporated into future designs.
(50) In the specification and/or figures, typical embodiments of the disclosure have been disclosed. The present disclosure is not limited to such exemplary embodiments. The use of the term “and/or” includes any and all combinations of one or more of the associated listed items. The figures are schematic representations and so are not necessarily drawn to scale. Unless otherwise noted, specific terms have been used in a generic and descriptive sense and not for purposes of limitation.
(51) The foregoing description and drawings comprise illustrative embodiments. Having thus described exemplary embodiments, it should be noted by those skilled in the art that the within disclosures are exemplary only, and that various other alternatives, adaptations, and modifications may be made within the scope of the present disclosure. Merely listing or numbering the steps of a method in a certain order does not constitute any limitation on the order of the steps of that method. Many modifications and other embodiments will come to mind to one skilled in the art to which this disclosure pertains having the benefit of the teachings presented in the foregoing descriptions and the associated drawings. Although specific terms may be employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation. Accordingly, the present disclosure is not limited to the specific embodiments illustrated herein but is limited only by the following claims.