US20220146224A1 - Actuation system for a firearm - Google Patents
Actuation system for a firearm Download PDFInfo
- Publication number
- US20220146224A1 US20220146224A1 US17/433,480 US202017433480A US2022146224A1 US 20220146224 A1 US20220146224 A1 US 20220146224A1 US 202017433480 A US202017433480 A US 202017433480A US 2022146224 A1 US2022146224 A1 US 2022146224A1
- Authority
- US
- United States
- Prior art keywords
- slide
- section
- backward
- operating position
- parking section
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
- F41A7/00—Auxiliary mechanisms for bringing the breech-block or bolt or the barrel to the starting position before automatic firing; Drives for externally-powered guns; Remote-controlled gun chargers
- F41A7/08—Drives for externally-powered guns, i.e. drives for moving the breech-block or bolt by an external force during automatic firing
- F41A7/10—Drives for externally-powered guns, i.e. drives for moving the breech-block or bolt by an external force during automatic firing using a rotating cylindrical drum having a camming groove
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
- F41A9/00—Feeding or loading of ammunition; Magazines; Guiding means for the extracting of cartridges
- F41A9/50—External power or control systems
Definitions
- the present invention relates to an actuation system for a firearm.
- the breech ring is configured for receiving a shell to be fired.
- Such firearms also comprise a barrel, through which the shell is intended to be channelled by the breech ring after firing.
- FIG. 1 is a perspective view of a firearm comprising an actuation system made in accordance with an exemplary embodiment of the present invention.
- FIG. 2 is a enlarged partial side elevation view of the firearm shown in FIG. 1 , wherein the above-mentioned actuation system is better visible.
- FIG. 3 is a side elevation view of the above-mentioned actuation system, which comprises a slide represented in a first operating position.
- FIG. 4 is a side elevation view of the above-mentioned actuation system, wherein the slide is represented in a second operating position.
- FIG. 5 is a side elevation view of the above-mentioned actuation system, wherein the slide is represented in an intermediate position between the first operating position and the second operating position.
- FIGS. 8 and 9 are perspective views of a routing mechanism belonging to the actuation system.
- numeral 1 designates as a whole a firearm.
- the firearm 1 is a single-barrel firearm.
- such firearm 1 comprises a breech ring 12 configured for receiving a shell, e.g. a thirty-millimeter (30 mm) caliber shell, intended to be fired.
- the firearm 1 comprises a barrel 13 , through which the shell is channelled when firing occurs.
- the firearm 1 comprises an actuation system 2 made in accordance with an exemplary embodiment of the present invention.
- the system 2 comprises a breechblock assembly 3 configured to close the breech ring 12 of the firearm 1 .
- the system 2 comprises a slide 5 , whereon the breechblock assembly 3 is mounted.
- the breechblock assembly 3 moves as a unit together with the slide 5 .
- system 2 comprises a linear guide, which is per se known (and is not shown), whereon the slide 5 is configured to slide linearly.
- the system 2 also comprises a cylindrical cam 4 configured to be rotatably actuated about a central axis X-X by a motor, which is per se known (and is not shown).
- the cam 4 is configured to be rotatably driven by the motor in a clockwise direction (in particular when viewing the cam 4 from the rear, i.e. from an opposed side to the breech 12 and the barrel 13 , which are situated in front of said cam 4 ).
- the cam 4 co-operates with the slide 5 for controlling the movement of the slide 5 along said linear guide between a first operating position, shown in FIG. 3 , and a second operating position, shown in FIG. 4 .
- the slide 5 is situated at the top of the cam 4 .
- the linear guide may be provided as a casing that surrounds the cam 4 , allowing the latter to rotate about the central axis X-X.
- Such casing may have a straight groove within which the slide 5 is slidably coupled.
- the groove may be formed on the top of said enclosure, so that the slide 5 is movable over the cam 4 .
- the cam 4 is a positive-control multi-revolution cam.
- the first operating position of the slide 5 corresponds to a condition in which the breechblock assembly 3 is in a remote position relative to the breech ring 12 .
- the breechblock assembly 3 allows the extraction of the shell case of the fired piece of ammunition and the insertion of a new piece of ammunition.
- FIG. 3 shows that the breechblock assembly 3 carries a piece of ammunition M intended to be pushed into the breech ring 12 .
- the second operating position of the slide 5 corresponds to a condition in which the breechblock assembly 3 is in proximity to the breech ring 12 .
- the breechblock assembly 3 is able to co-operate with the breech ring 12 during the ammunition firing phases.
- the breechblock assembly 3 closes the firing chamber of the firearm in which the piece of ammunition M is contained.
- the outer surface of the cam 4 defines a path indicated by reference 42 .
- the slide 5 comprises a coupling element 52 coupled with the path 42 defined by the cam 4 .
- the coupling element 52 is a pin
- the path 42 is formed by a groove in which said pin is slidably coupled.
- said path 42 has a first parking section 42 (e.g. substantially annular), where the slide 5 is kept in the first operating position.
- said path 42 has a second parking section 42 b (e.g. substantially annular), where the slide 5 is kept in the second operating position.
- a second parking section 42 b e.g. substantially annular
- the path 42 has a pair of intermediate sections 42 c and 42 d that connect the first parking section 42 a and the second parking section 42 b. Through the intermediate sections 42 c and 42 d, the slide 5 is alternately moved between the first operating position and the second operating position.
- the forward intermediate section 42 c is configured to allow the slide 5 to move from the first operating position, in the first parking section 42 a, to the second operating position, in the second parking section 42 b.
- the backward intermediate section 42 d is configured to allow the slide 5 to move from the second operating position, in the second parking section 42 b, to the first operating position, in the first parking section 42 a.
- the forward intermediate section 42 c is shaped as a helical portion having a winding direction that is discordant from the rotation direction in which the cam 4 is driven by the motor.
- the backward intermediate section 42 d is shaped as a helical portion having a winding direction that is concordant with the rotation direction in which the cam 4 is driven by the motor.
- the intermediate sections 42 c, 42 d intersect each other at their ends, at the first parking section 42 c on one side and at the second parking section 42 d on the other side.
- the intermediate sections 42 c, 42 d are shaped as helical portions, their intersections form cusp-shaped regions.
- the system 2 further comprises a routing mechanism 7 configured to assume selectively a forward condition and a backward condition, or blocking condition.
- the routing mechanism 7 constrains the slide 5 to move from the first parking section 42 a to said second parking section 42 b through the forward intermediate section 42 c.
- the routing mechanism 7 constrains the slide to move from the second parking section 42 b to the first parking section 42 a through the backward intermediate section 42 d.
- the routing mechanism 7 comprises a pair of diverters 72 a, 72 b.
- the first diverter 72 a is associated with the first parking section 42 a (in particular, it is situated therein) and is configured for selectively connecting the first parking section 42 a with the forward section 42 c and with the backward section 42 d when the routing mechanism 7 is in the forward condition and, respectively, in the backward condition.
- the second diverter 72 b is associated with the second parking section 42 b (in particular, it is situated therein) and is configured for selectively connecting the second parking section 42 b with the forward section 42 c and with the backward section 42 d when the routing mechanism 7 is in the forward condition and, respectively, in the backward condition.
- the routing mechanism 7 is in the forward condition, in which the diverters 72 a and 72 b create a guiding path from the first parking section 42 a to the second parking section 42 b through the forward section 42 c .
- the diverters 72 a and 72 b interpose themselves between the ends of the backward intermediate section 42 d and the parking sections 42 a, 42 b.
- the diverters 72 a, 72 b are in an opposed position to that shown in FIGS. 3 to 5 .
- the routing mechanism 7 comprises a synchronization device 70 configured for synchronizing the movement of said pair of diverters 72 a, 72 b.
- the synchronization device 70 is configured to cause the first diverter 72 a and the second diverter 72 b to simultaneously provide the connection with the forward intermediate section 42 c when the routing mechanism 7 is in the forward condition.
- the device 70 is configured to cause the first diverter 72 a and the second diverter 72 b to simultaneously provide the connection with the backward intermediate section 42 d when the routing mechanism 7 is in the backward condition.
- the synchronization device 70 is a bistable linkage.
- the linkage has a first stable arrangement, visible in FIG. 8 , corresponding to the forward condition of the routing mechanism 7 , and a second stable arrangement, visible in FIG. 9 , corresponding to the backward condition of the routing mechanism.
- said linkage comprises a shaft 71 configured for simultaneously moving the diverters 72 a, 72 b each time the routing mechanism 7 switches between the forward condition and the backward condition.
- the shaft 71 is configured for making the diverters 72 a, 72 b rotate about respective transverse axes of rotation Ya, Yb.
- the transverse axes of rotation Ya, Yb are substantially parallel to each other and, in a preferred manner, substantially perpendicular to both the longitudinal axis X′-X′ of the shaft 71 and the central axis X-X about which the cam 4 is able to rotate.
- the longitudinal axis X′-X′ of the shaft 71 and the central axis X-X of the cam are mutually incident and define a plane relative to which the transverse axes of rotation Ya, Yb are substantially perpendicular.
- each one of the ends 71 a, 71 b of the shaft 71 is hinged to an arm of a respective rocker 74 a, 74 b, which is in turn pivoted about a respective transverse axis of rotation Ya, Yb, and which carries a corresponding diverter 72 a, 72 b on the opposed arm.
- the cam 4 rotates as a unit together with the routing mechanism 7 .
- the diverters 72 a, 72 b are supported by the outer surface of the cam 4 ; moreover, the synchronization device 70 is housed inside the cam 4 , which is advantageously hollow.
- the routing mechanism 7 is switched between the forward condition and the backward condition, in particular by means of the synchronization device 70 , e.g. through an action exerted by the pin 52 of the slide 5 upon a respective diverter 72 a (or 72 b ), which, through the linkage comprising the shaft 71 , causes a simultaneous movement of the other diverter 72 b (or 72 a ).
- the slide 5 starts from the first operating position, it goes into the second operating position after one revolution of the cam 4 and returns into the first operating position from the second operating position after one further revolution of said cam 4 . Therefore, after each two revolutions of the cam 4 , the actuation system 2 will find itself in the starting position again.
Abstract
An actuation system includes a breechblock assembly, and a slide whereon the breechblock assembly is mounted. The slide is configured to slide linearly on a linear guide. A cylindrical cam is configured to be rotatably actuated by a motor and cooperating with the slide for controlling movement along the linear guide. The outer surface of the cam defines a path having a first parking section, a second parking section, a forward intermediate section and a backward intermediate section connecting the first annular parking section and the second annular parking section. The slide is moved forward from the first operating position to the second operating position and, respectively, backward from the second operating position to the first operating position.
Description
- The present invention relates to an actuation system for a firearm.
- In the artillery field, it is known to use firearms that typically comprise a breech ring for geometrically closing the firing chamber of the firearm when firing occurs.
- In particular, the breech ring is configured for receiving a shell to be fired. Such firearms also comprise a barrel, through which the shell is intended to be channelled by the breech ring after firing.
- For firing the shell, different kinds of actuation systems are known, which control the closing of the breech ring.
- However, prior-art actuation systems suffer from a number of drawbacks which should desirably be overcome.
- It is one object of the present invention to provide an improved actuation system for a firearm, which are able to overcome the drawbacks of the prior art.
- According to the present invention, this and other objects are achieved through an actuation system having the technical features set out in the appended independent claim.
- It is understood that the appended claims are an integral part of the technical teachings provided in the following detailed description of the present invention. In particular, the appended dependent claims define some preferred embodiments of the present invention that include optional technical features.
- Further features and advantages of the present invention will become apparent in light of the following detailed description, provided merely as a non-limiting example and referring, in particular, to the annexed drawings as summarized below.
-
FIG. 1 is a perspective view of a firearm comprising an actuation system made in accordance with an exemplary embodiment of the present invention. -
FIG. 2 is a enlarged partial side elevation view of the firearm shown inFIG. 1 , wherein the above-mentioned actuation system is better visible. -
FIG. 3 is a side elevation view of the above-mentioned actuation system, which comprises a slide represented in a first operating position. -
FIG. 4 is a side elevation view of the above-mentioned actuation system, wherein the slide is represented in a second operating position. -
FIG. 5 is a side elevation view of the above-mentioned actuation system, wherein the slide is represented in an intermediate position between the first operating position and the second operating position. -
FIGS. 6 and 7 are perspective views of a cam belonging to the actuation system. -
FIGS. 8 and 9 are perspective views of a routing mechanism belonging to the actuation system. - With reference to
FIGS. 1 and 2 , numeral 1 designates as a whole a firearm. By way of example, the firearm 1 is a single-barrel firearm. - In a per se known manner, such firearm 1 comprises a
breech ring 12 configured for receiving a shell, e.g. a thirty-millimeter (30 mm) caliber shell, intended to be fired. The firearm 1 comprises abarrel 13, through which the shell is channelled when firing occurs. - Moreover, the firearm 1 comprises an
actuation system 2 made in accordance with an exemplary embodiment of the present invention. - The
system 2 comprises abreechblock assembly 3 configured to close thebreech ring 12 of the firearm 1. - Moreover, the
system 2 comprises aslide 5, whereon thebreechblock assembly 3 is mounted. In particular, thebreechblock assembly 3 moves as a unit together with theslide 5. - Furthermore, the
system 2 comprises a linear guide, which is per se known (and is not shown), whereon theslide 5 is configured to slide linearly. - The
system 2 also comprises acylindrical cam 4 configured to be rotatably actuated about a central axis X-X by a motor, which is per se known (and is not shown). In the illustrated embodiment, thecam 4 is configured to be rotatably driven by the motor in a clockwise direction (in particular when viewing thecam 4 from the rear, i.e. from an opposed side to thebreech 12 and thebarrel 13, which are situated in front of said cam 4). - The
cam 4 co-operates with theslide 5 for controlling the movement of theslide 5 along said linear guide between a first operating position, shown inFIG. 3 , and a second operating position, shown inFIG. 4 . In particular, theslide 5 is situated at the top of thecam 4. - By way of non-limiting example, the linear guide may be provided as a casing that surrounds the
cam 4, allowing the latter to rotate about the central axis X-X. Such casing may have a straight groove within which theslide 5 is slidably coupled. For example, the groove may be formed on the top of said enclosure, so that theslide 5 is movable over thecam 4. - In the illustrated embodiment, the
cam 4 is a single drum-type cam. - In the illustrated embodiment, the
cam 4 is a positive-control multi-revolution cam. - With reference to
FIG. 3 , the first operating position of theslide 5 corresponds to a condition in which thebreechblock assembly 3 is in a remote position relative to thebreech ring 12. In this condition, thebreechblock assembly 3 allows the extraction of the shell case of the fired piece of ammunition and the insertion of a new piece of ammunition. In particular,FIG. 3 shows that thebreechblock assembly 3 carries a piece of ammunition M intended to be pushed into thebreech ring 12. - With reference to
FIGS. 2 and 4 , the second operating position of theslide 5 corresponds to a condition in which thebreechblock assembly 3 is in proximity to thebreech ring 12. In such a condition, thebreechblock assembly 3 is able to co-operate with thebreech ring 12 during the ammunition firing phases. In such a condition, in particular, when firing occurs thebreechblock assembly 3 closes the firing chamber of the firearm in which the piece of ammunition M is contained. - The outer surface of the
cam 4 defines a path indicated byreference 42. - In the illustrated embodiment, the
slide 5 comprises acoupling element 52 coupled with thepath 42 defined by thecam 4. In particular, thecoupling element 52 is a pin, and thepath 42 is formed by a groove in which said pin is slidably coupled. - With particular reference to
FIG. 3 , saidpath 42 has a first parking section 42 (e.g. substantially annular), where theslide 5 is kept in the first operating position. - With particular reference to
FIG. 4 , saidpath 42 has asecond parking section 42 b (e.g. substantially annular), where theslide 5 is kept in the second operating position. - In addition, the
path 42 has a pair ofintermediate sections first parking section 42 a and thesecond parking section 42 b. Through theintermediate sections slide 5 is alternately moved between the first operating position and the second operating position. - The forward
intermediate section 42 c is configured to allow theslide 5 to move from the first operating position, in thefirst parking section 42 a, to the second operating position, in thesecond parking section 42 b. - The backward
intermediate section 42 d is configured to allow theslide 5 to move from the second operating position, in thesecond parking section 42 b, to the first operating position, in thefirst parking section 42 a. - Preferably, the forward
intermediate section 42 c is shaped as a helical portion having a winding direction that is discordant from the rotation direction in which thecam 4 is driven by the motor. - Preferably, the backward
intermediate section 42 d is shaped as a helical portion having a winding direction that is concordant with the rotation direction in which thecam 4 is driven by the motor. - In the illustrated embodiment, the
intermediate sections first parking section 42 c on one side and at thesecond parking section 42 d on the other side. In particular, when theintermediate sections - Preferably, the
system 2 further comprises arouting mechanism 7 configured to assume selectively a forward condition and a backward condition, or blocking condition. - In the forward condition, visible in
FIG. 8 , therouting mechanism 7 constrains theslide 5 to move from thefirst parking section 42 a to saidsecond parking section 42 b through the forwardintermediate section 42 c. - Vice versa, in the backward condition, the
routing mechanism 7 constrains the slide to move from thesecond parking section 42 b to thefirst parking section 42 a through the backwardintermediate section 42 d. - In the illustrated embodiment, the
routing mechanism 7 comprises a pair ofdiverters - With particular reference to
FIGS. 3 and 4 , thefirst diverter 72 a is associated with thefirst parking section 42 a (in particular, it is situated therein) and is configured for selectively connecting thefirst parking section 42 a with theforward section 42 c and with thebackward section 42 d when therouting mechanism 7 is in the forward condition and, respectively, in the backward condition. - With particular reference to
FIG. 5 , thesecond diverter 72 b is associated with thesecond parking section 42 b (in particular, it is situated therein) and is configured for selectively connecting thesecond parking section 42 b with theforward section 42 c and with thebackward section 42 d when therouting mechanism 7 is in the forward condition and, respectively, in the backward condition. - In
FIGS. 3 to 5 , therouting mechanism 7 is in the forward condition, in which thediverters first parking section 42 a to thesecond parking section 42 b through theforward section 42 c. At the same time, in this forward condition, thediverters intermediate section 42 d and theparking sections diverters FIGS. 3 to 5 . - Preferably, the
routing mechanism 7 comprises asynchronization device 70 configured for synchronizing the movement of said pair ofdiverters synchronization device 70 is configured to cause thefirst diverter 72 a and thesecond diverter 72 b to simultaneously provide the connection with the forwardintermediate section 42 c when therouting mechanism 7 is in the forward condition. Vice versa, thedevice 70 is configured to cause thefirst diverter 72 a and thesecond diverter 72 b to simultaneously provide the connection with the backwardintermediate section 42 d when therouting mechanism 7 is in the backward condition. - In the illustrated embodiment, the
synchronization device 70 is a bistable linkage. In particular, the linkage has a first stable arrangement, visible inFIG. 8 , corresponding to the forward condition of therouting mechanism 7, and a second stable arrangement, visible inFIG. 9 , corresponding to the backward condition of the routing mechanism. - Preferably, said linkage comprises a
shaft 71 configured for simultaneously moving thediverters routing mechanism 7 switches between the forward condition and the backward condition. - In particular, the
shaft 71 is configured for making thediverters shaft 71 and the central axis X-X about which thecam 4 is able to rotate. In the illustrated embodiment, the longitudinal axis X′-X′ of theshaft 71 and the central axis X-X of the cam are mutually incident and define a plane relative to which the transverse axes of rotation Ya, Yb are substantially perpendicular. - For example, each one of the
ends shaft 71 is hinged to an arm of arespective rocker diverter - In the illustrated embodiment, the
cam 4 rotates as a unit together with therouting mechanism 7. In particular, thediverters cam 4; moreover, thesynchronization device 70 is housed inside thecam 4, which is advantageously hollow. - When the
actuation system 2 is in operation, at each full revolution of thecam 4 about the axis X-X, therouting mechanism 7 is switched between the forward condition and the backward condition, in particular by means of thesynchronization device 70, e.g. through an action exerted by thepin 52 of theslide 5 upon arespective diverter 72 a (or 72 b), which, through the linkage comprising theshaft 71, causes a simultaneous movement of theother diverter 72 b (or 72 a). Thus, when theslide 5 starts from the first operating position, it goes into the second operating position after one revolution of thecam 4 and returns into the first operating position from the second operating position after one further revolution of saidcam 4. Therefore, after each two revolutions of thecam 4, theactuation system 2 will find itself in the starting position again. - Naturally, without prejudice to the principle of the present invention, the forms of embodiment and the implementation details may be extensively varied from those described and illustrated herein merely by way of non-limiting example, without however departing from the scope of the invention as set out in the appended claims.
Claims (18)
1. An actuation system for a firearm; said system comprising:
a breechblock assembly adapted to close a breech ring of said firearm;
a slide whereon said breechblock assembly is mounted;
a linear guide whereon said slide is configured to slide linearly; and
a cylindrical cam configured to be rotatably actuated by a motor and co-operating with said slide for controlling movement of said slide along said linear guide between a first operating position and a second operating position; an outer surface of said cylindrical cam defining a path having:
a substantially annular first parking section wherein said slide is kept in said first operating position, wherein said breechblock assembly is in a remote position relative to said breech ring and allows extraction of the shell case and the insertion of a new piece of ammunition,
a substantially annular second parking section wherein said slide is kept in said second operating position, wherein said breechblock assembly is in proximity to said breech ring and cooperates with said breech ring during the ammunition firing phases,
a helical portion shaped forward intermediate section and a helical portion shaped backward intermediate section connecting said first parking section and said second parking section, and wherein said slide is moved forward from said first operating position to said second operating position and, respectively, backward from said second operating position to said first operating position.
2. The system according to claim 1 , wherein said system comprises a single drum-type cam.
3. (canceled)
4. The system according to claim 1 , wherein said slide comprises a coupling element, and said cam has an external groove which defines said path and in which said coupling element is configured to slide.
5. The system according to claim 1 , wherein said cam comprises a routing mechanism figured to selectively assume:
a forward condition, wherein said routing mechanism constrains said slide to move from said first parking section to said second parking section through said forward intermediate section, and
a backward condition, wherein said routing mechanism constrains said slide to move from said second parking section (42 b) to said first parking section through said backward intermediate section.
6. The system according to claim 5 , wherein said routing mechanism comprises a pair of diverters, each one of said diverters being associated with a respective parking section and being configured for selectively connecting the respective parking section with the forward section and with the backward section, when the routing mechanism is in the forward condition and, respectively, in the backward condition.
7. The system according to claim 6 , wherein each one of said diverters is situated in the respective parking section with which each one of said diverters is associated.
8. The system according to claim 6 , wherein said routing mechanism comprises a synchronization device configured for synchronizing movement of said pair of diverters, so that both of said diverters simultaneously provide connection with the forward intermediate section and, respectively, with the backward intermediate section when the routing mechanism assumes the forward condition and, respectively, the backward condition.
9. The system according to claim 8 , wherein said synchronization device is a bistable linkage.
10. The system according to claim 9 , wherein said bistable linkage comprises a shaft configured for simultaneously moving said diverters each time said routing mechanism switches between said forward condition and said backward condition.
11. The system according to claim 10 , wherein said shaft is configured for simultaneously rotating the diverters about transverse axes of rotation.
12. The system according to claim 1 wherein said transverse axes of rotation are substantially parallel to each other.
13. The system according to claim 12 , wherein said transverse axes of rotation are substantially perpendicular to a central axis of rotation of said cam and to a longitudinal axis of said shaft.
14. A firearm comprising:
a breech ring configured to receive a shell to be fired;
a barrel through which the shell is to be channelled when firing occurs in the breech ring; and
an actuation system according to claim 1 .
15. The system according to claim 1 , wherein said forward intermediate section is shaped as a helical portion having a winding direction that is discordant from a rotation direction in which the cam is driven by the motor.
16. The system according to claim 1 , wherein the backward intermediate section is shaped as a helical portion having a winding direction that is concordant with a rotation direction in which the cam is driven by the motor.
17. The system according to claim 1 , wherein the intermediate sections intersect each other at ends of the intermediate sections, at the first parking section on one side and at the second parking section on the other side.
18. The system according to claim 17 , wherein the intersection between the intermediate sections form cusp-shaped regions.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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IT102019000002635A IT201900002635A1 (en) | 2019-02-25 | 2019-02-25 | DRIVE SYSTEM FOR A FIREARM. |
IT102019000002635 | 2019-02-25 | ||
PCT/IB2020/051536 WO2020174359A1 (en) | 2019-02-25 | 2020-02-24 | Actuation system for a firearm |
Publications (1)
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US20220146224A1 true US20220146224A1 (en) | 2022-05-12 |
Family
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Family Applications (1)
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US17/433,480 Abandoned US20220146224A1 (en) | 2019-02-25 | 2020-02-24 | Actuation system for a firearm |
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US (1) | US20220146224A1 (en) |
EP (1) | EP3931516A1 (en) |
KR (1) | KR20210145147A (en) |
CN (1) | CN113646603A (en) |
BR (1) | BR112021016796A2 (en) |
CA (1) | CA3128251A1 (en) |
IT (1) | IT201900002635A1 (en) |
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WO (1) | WO2020174359A1 (en) |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
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US4062266A (en) * | 1975-09-25 | 1977-12-13 | Elmore Lester C | Liquid propellant modular gun incorporating dual cam operation and internal water cooling |
FR2372410A1 (en) * | 1976-11-26 | 1978-06-23 | France Etat | IMPROVEMENTS IN AUTOMATIC WEAPONS WITH EXTERNAL ENGINE |
US4131052A (en) * | 1977-07-05 | 1978-12-26 | The United States Of America As Represented By The Secretary Of The Army | Drum cam with anti hang-fire feature |
JPS59150297A (en) * | 1982-12-08 | 1984-08-28 | ウエルクツオイクマシイネンフアブリ−ク・エ−リコン−ビユ−レ・アクチエンゲゼルシヤフト | Safety device for separately driven gun |
US4914967A (en) * | 1988-12-23 | 1990-04-10 | General Electric Company | Crossover mechanism for guiding a cam follower through a cam track intersection |
US8720289B2 (en) * | 2011-01-05 | 2014-05-13 | General Dynamics Ordnance And Tactical Systems, Inc. | Loading machine for feeding a receiver |
CN205328071U (en) * | 2016-02-03 | 2016-06-22 | 中国神华能源股份有限公司 | Multichannel formula conveying system's auto -change over device and multichannel formula conveying system |
CN108627046B (en) * | 2017-03-16 | 2020-09-15 | 罗涛 | Method for realizing cartridge-shell-free automatic weapon by using liquid propellant powder |
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2019
- 2019-02-25 IT IT102019000002635A patent/IT201900002635A1/en unknown
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- 2020-02-24 EP EP20713096.4A patent/EP3931516A1/en active Pending
- 2020-02-24 US US17/433,480 patent/US20220146224A1/en not_active Abandoned
- 2020-02-24 KR KR1020217030486A patent/KR20210145147A/en unknown
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- 2020-02-24 BR BR112021016796A patent/BR112021016796A2/en unknown
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- 2020-02-24 WO PCT/IB2020/051536 patent/WO2020174359A1/en active Search and Examination
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WO2020174359A1 (en) | 2020-09-03 |
CA3128251A1 (en) | 2020-09-03 |
IT201900002635A1 (en) | 2020-08-25 |
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BR112021016796A2 (en) | 2021-11-03 |
KR20210145147A (en) | 2021-12-01 |
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