firearm accessories and methods are provided in which a grip force is received at a grip force receiving surface that is positioned at least one half of a trigger guard away from an actuation sensor in the accessory, at least a portion of a grip force is used to create a change in a physical condition proximate to the actuation sensor that the actuation sensor is adapted to sense; and the sensed change in physical condition is used to determine a control output for an electronic system in the firearm accessory.
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12. A method for actuating an accessory for use with a firearm having a grip, a trigger guard and a barrel extending from the grip past the trigger guard, the method comprising:
receiving a grip force at a grip force receiving surface positioned at least one half of a trigger guard length away from an actuation sensor in the accessory;
using at least a portion of the grip force to create a change in a physical condition proximate to the actuation sensor that the actuation sensor is adapted to sense;
using the sensed change in physical condition to determine a control output for an electronic system in the firearm accessory wherein the portion of the grip force is used to change in a position of a linkage relative to the actuation sensor.
1. An accessory for use with a firearm having a grip, a trigger guard and a barrel extending from the grip past the trigger guard, the accessory comprising:
a grip force receiving surface;
a housing configured to position an electronic system, a control system, the grip force receiving surface and a linkage relative to the firearm, with the grip force receiving surface positioned proximate to the grip of the firearm such that a person gripping the firearm will apply force against the grip force receiving surface;
a tensioner positioned to apply a tension in the linkage urging the linkage and grip force receiving surface from a force applied position toward a release position;
wherein the grip force receiving surface is associated with the linkage such that a change in the grip force applied against the grip force receiving surface causes the linkage to cause a change in a condition that can be sensed by an actuation sensor that is at least a half of a length of the trigger guard away from the grip force receiving surface with the control system determining operation of the electronic system based at least in part on the condition sensed by the actuation sensor.
7. An accessory for use with a firearm having a grip, a trigger guard and a barrel extending from the grip past the trigger guard, the accessory comprising:
a grip force receiving surface;
a housing configured to position an electronic system, a control system, the grip force receiving surface and a linkage relative to the firearm, with the grip force receiving surface positioned proximate to the grip of the firearm such that a person gripping the firearm will apply force against the grip force receiving surface;
a pathway containing a fluid and wherein the grip force applied against the grip receiving surface moves the fluid in a manner that can be sensed by the actuation sensor;
wherein the grip force receiving surface is associated with the linkage such that a change in the grip force applied against the grip force receiving surface causes the linkage to cause a change in a condition that can be sensed by an actuation sensor that is at least a half of a length of the trigger guard away from the grip force receiving surface with the control system determining operation of the electronic system based at least in part on the condition sensed by the actuation sensor.
6. An accessory for use with a firearm having a grip, a trigger guard and a barrel extending from the grip past the trigger guard, the accessory comprising:
a grip force receiving surface;
a housing configured to position an electronic system, a control system, the grip force receiving surface and a linkage relative to the firearm, with the grip force receiving surface positioned proximate to the grip of the firearm such that a person gripping the firearm will apply force against the grip force receiving surface;
wherein the grip force receiving surface is associated with the linkage such that a change in the grip force applied against the grip force receiving surface causes the linkage to cause a change in a condition that can be sensed by an actuation sensor that is at least a half of a length of the trigger guard away from the grip force receiving surface with the control system determining operation of the electronic system based at least in part on the condition sensed by the actuation sensor and wherein the linkage is positioned within a pathway such that the linkage rocks in a manner that can be sensed by the actuation sensor when the gripping force is applied against the grip receiving surface.
10. An accessory for use with a firearm having a grip, a trigger guard and a barrel extending from the grip past the trigger guard, the accessory comprising:
a grip force receiving surface;
a housing configured to position an electronic system, a control system, the grip force receiving surface and a linkage relative to the firearm, with the grip force receiving surface positioned proximate to the grip of the firearm such that a person gripping the firearm will apply force against the grip force receiving surface;
wherein the grip force receiving surface is associated with the linkage such that a change in the grip force applied against the grip force receiving surface causes the linkage to cause a change in a condition that can be sensed by an actuation sensor that is at least a half of a length of the trigger guard away from the grip force receiving surface with the control system determining operation of the electronic system based at least in part on the condition sensed by the actuation sensor and wherein the linkage comprises a fluid material through a pathway such that force applied at grip force receiving surface pressurizes fluid in a chamber to create a change in conditions proximate to the actuation sensor.
8. An accessory for use with a firearm having a grip, a trigger guard and a barrel extending from the grip past the trigger guard, the accessory comprising:
a grip force receiving surface;
a housing configured to position an electronic system, a control system, the grip force receiving surface and a linkage relative to the firearm, with the grip force receiving surface positioned proximate to the grip of the firearm such that a person gripping the firearm will apply force against the grip force receiving surface;
wherein the grip force receiving surface is associated with the linkage such that a change in the grip force applied against the grip force receiving surface causes the linkage to cause a change in a condition that can be sensed by an actuation sensor that is at least a half of a length of the trigger guard away from the grip force receiving surface with the control system determining operation of the electronic system based at least in part on the condition sensed by the actuation sensor and wherein a first range of grip force applied to a grip force receiving surface causes the linkage to create a first condition that can be sensed by actuation sensor and from which the control system can determine a first control outcome and a second range of grip force applied to a grip force receiving surface creates a second condition that can be sensed by actuation sensor and from which the control system can determine a second control outcome.
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This application claims the benefit of U.S. Provisional Application No. 62/382,475 filed Sep. 1, 2016.
Not applicable.
The present invention relates to accessories and mechanisms for use with firearms and deterrent devices and methods for activating the same.
Electronic firearm accessories such as laser and light devices are well known. There are various ways of joining a such an accessory to a firearm and various ways of activating such an accessory when needed. In one known approach an electro-mechanical switch is located on the grip and electrically connected to a laser that is mounted to the grip. For example, U.S. Pat. No. 8,256,154, entitled “Laser gunsight system for a firearm trigger guard” describes a sighting device for a firearm having a trigger guard, a frame with an underside portion forward of the trigger guard, and a handgrip with a front strap, the sighting device comprising: a body having a first portion including an illumination device; the body defining an engagement feature operable to removably connect to and closely encircle a forward portion of the trigger guard to create a clamping action about the trigger guard; the body having an elongated extension portion extending from the first portion; the extension portion shaped to wrap a bottom surface and left and right sides of the trigger guard from the first portion to the front strap; the extension portion having a free end including a switch; the switch having electrical contacts located below the lower portion of the trigger guard and being electrically connected to electrical contacts at the forward portion of the trigger guard; and the extension portion including an electrical conductor operably connecting the switch to the illumination device. This requires electrical connections and a functioning switch be positioned between a firearm and a grip of a hand holding that firearm. It will be appreciated that this grip force must be maintained whenever the laser is to be active. Further, this switch must be capable of functioning despite being exposed, on one side, to accelerations that occur during firearm discharge and on the other to control forces from a gripping hand. Accordingly such switch based arrangements can be complex and expensive. Further, there is no adjustability in such systems.
In another approach, the LINQ system sold by Crimson Trace Corporation, Wilsonville, Oreg., USA includes switches that are connected to radio frequency transmitters in a firearm grip that must communicate with radio frequency receivers in the firearm accessory. such a solutions are inordinately expensive and unnecessarily complicated.
In yet another approach example, U.S. Pat. No. 9,328,8994, entitled “Flexible switch for laser gun sight” filed by Hovsepian on Jul. 21, 2014, provides a laser sight kit for mounting on a handgun having a triggerguard and a frame extending forward of the trigger guard. The kit has a laser sight configured to be removably secured to the handgun frame at a position forward of the trigger guard, the laser sight having a first electrical contact; a switch operable without displacement of any portion of the switch and without force applied to the switch; at least one second electrical contact; at least one flexible nonconductive carrier, the switch and second contact disposed on carrier with the second contact electrically connected to the switch; and the second carrier, switch and second contact flush surface-mounted when secured to the handgun, with the switch secured to the underside of the trigger guard and the second contact secured to a location forward of the trigger guard such that the laser sight first contact may connect with the second contact. Essentially two electrodes are exposed on the underside of the gun requiring a finger to make contact with the electrodes and provide a conductive path between them. Of course any conductive substance bridging the gap between electrodes will have this effect such that any electrical conductor, including but not limited to water or sweat making contact with both electrodes will activate the laser. Here too there is little or no user adjustability.
What are needed therefore in the art are new approaches to activating firearm accessories that are less complex and less expensive. Additionally, what are needed are new approaches to activating firearm accessories that can be adjusted to the needs of a user.
Accessories for use with a firearm having a grip, a trigger guard and a barrel extending from the grip past the trigger guard are provided. In one aspect, an accessory has a grip force receiving surface; a housing configured to position an electronic system, a control system, the grip force receiving surface and a linkage relative to the firearm, with the grip force receiving surface positioned proximate to the grip of the firearm such that a person gripping the firearm will apply force against the grip force receiving surface. The grip force receiving surface is associated with the linkage such that a change in the grip force applied against grip force receiving surface causes the linkage to cause a change in a condition that can be sensed by an actuation sensor that is at least a half of a length of the trigger guard away from the grip force receiving surface with the control system determining operation of the electronic system based at least in part on the condition sensed by the actuation sensor.
Methods for actuating an accessory for use with a firearm having a grip, a trigger guard and a barrel extending from the grip past the trigger guard are also provided. In one aspect of such a method, a grip force is received at a grip force receiving surface positioned at least one half of a trigger guard length away from an actuation sensor in the accessory. At least a portion of the grip force is used to create a change in a physical condition proximate to the actuation sensor that the actuation sensor is adapted to sense and the sensed change in physical condition to determine a control output for an electronic system in the firearm accessory.
Firearm 10 includes, in part, a barrel 12, a frame 14, a trigger guard 16, and a grip 18. In this embodiment, firearm accessory 20 is shown engaging a trigger guard 16 of the firearm 10, it is understood that firearm accessory 20 can be cooperatively engaged with any portion of firearm 10 and may be incorporated within firearm 10.
For purposes of description, the term “longitudinal” means the dimensions along the direction of the barrel 12. The term “width” means the dimension along a direction transverse to the axis of the barrel 12. The term “axial” means in a direction transverse to the axis of the barrel 12. The term “forward” means nearer to or towards a muzzle 13. The term “rearward” means further from or away from the muzzle 13. The term “below” means lower than, in the intended operating orientation of the firearm 10. The term “above” means higher than, in the intended operating orientation of the firearm 10. The term “preclude movement” means to prevent movement which would otherwise prevent functioning in an intended manner. The term “angular” means rotating about at least one of the longitudinal and axial directions.
As is shown in
Firearm accessory 20 is shown having a laser system 60 with a laser module 62 for selectively emitting a beam of radiation, such as coherent radiation, along an optical axis, a coupling 65 and a laser cover 67. Laser module 62 has a resilient coupling 65 joined thereto. Resilient coupling 65 is located in a socket 42 that forms between housing 30 and a laser cover 67 and a spring coupling 69 which holds a spring (not shown) that biases laser module 60.
In the embodiment shown in
In one configuration, alignment pins 32, 34 are threadingly engaged with the housing 30 in corresponding through holes 33, 35. Through holes 33, 35 are sized so that the alignment pins cut at least a portion of corresponding threads in the housing 30. Thus, upon initial engagement of the alignment pins 32, 34 with the corresponding through holes 33, 35 the alignment pins cut the threads in the housing 30. It is understood a portion of each through hole 33, 35 may be formed with threads and a remaining of the through holes is formed without threads, such that the threads are formed in the remaining portion by initial engagement of the alignment pins 32, 34.
As seen in
The term interference fit means a fit between mating assembled surfaces (parts) that provides an interference and a deviation from nominal dimensions in at least one of the mating surfaces. The interference fit is sufficient to preclude relative longitudinal or axial movement between the coupling 65 and the laser module 62 (or the coupling and the housing 30 or laser cover 67). In one configuration, the interference fit incorporates the contact of two non-parallel generally planar surfaces, such as along a line of contact.
Laser module 62 may be a commercially available assembly or may be manufactured or fabricated for specific purposes or use in particular applications. Depending on the construction of laser module 62 and housing 30, at least one of laser module 62 and housing 30 has a window 70 through which a beam of light from laser module 62 can pass while providing a contained environment within firearm accessory 20. Window 70 may have no substantial impact on a laser beam passing through window 70 may be adapted to optically modify light passing through window 70. In one example window 70 may include a lens providing optical power or otherwise impacting beam characteristics including but not limited to shaping the beam, focusing the beam or polarizing the beam.
Laser system 60 also includes a power supply 72 and a control board 74 shown in
In one configuration, control board 74 is also commercially available and sold in conjunction with the laser module 62. Here too, in other configurations custom designed and built boards and components may be used for control board 74.
Control board 74 determines operation of laser system 60. In this regard control board 74 may have a microprocessor, programmable analog device, microcontroller and other components such as memory and ports as is necessary to execute control logic for laser system 60. Optionally control board 74 may also execute control logic expressed in the form of hard wired electronics. Control board 74 is connected to power supply 72 and includes an activation sensor 76 for selectively operating or supplying laser module 62 with power. Activation sensor 76 can take the form of any devices, apparatus or mechanism that can sense a condition indicating that a change of state of an operating condition of firearm accessory 20 is to be made. Without limitation, such an activation sensor can take the form of an electro-mechanical switch, electro-optical switch or any kind of optical, mechanical, electro-mechanical, electromagnetic, electro-optic, electrical, sonic, sensory or sensing system, or transducer known for sensing physical conditions. In a simple embodiment, activation sensor 76 can take the form of a mechanically operated electrical switch. A switch type activation sensor 76 can include or be connected to an arm 78 that is accessible outside of the housing 30. In this embodiment, housing 30 engages a portion of trigger guard 16 of firearm 10, and a switch type activation sensor 76 is located longitudinally intermediate muzzle 13 and trigger guard 16, below barrel 12 of firearm 10. Further, activation sensor 76 is disposed outside of the periphery of trigger guard 16 and forward of trigger guard 16.
In addition, switch type activation sensor 76 can be configured such that switch type activation sensor 76 is moveable from a center, off, position to a left, on, position or a right, on, position. Arm 78 is sized and positioned such that in the center off position a portion of switch type activation sensor 76 is accessible to each of the left and right sides of housing 30 by virtue of the construction of housing 30, such as by associated depressions or recesses 31 as seen
Further, arm 78 can be sized so that the dimension of switch type activation sensor 76 transverse to barrel 12 is no greater than a width of firearm 10 or frame 14. Thus, if firearm 10 is holstered such that the sides of firearm 10 contact a holster (not shown), arm 78 being dimensioned to be within the width of the firearm 10 or frame 14 does not contact the holster and thus minimizes unintended operation of firearm accessory 20. For example, for use with the Ruger LCP sold by Sturm, Ruger & Co., Inc., Southport, Conn., USA having a frame width of approximately 0.82 inches, the arm 78 would have a dimension along the transverse direction of approximately 0.74 inches, or less. Therefore, in the off (centered) position of arm 78, arm 78 lies within a width of frame 14 or firearm 10.
Such an optional control arrangement allows a user to adjust a operation of firearm accessory 20 using finger contact with firearm accessory 20. However, in certain circumstances a user may in addition wish to have the option to change an operation of a firearm accessory 20 so that accessory 20 activates based upon whether or not the user is gripping firearm 10.
This presents a challenge in that, on the embodiment shown in
In the embodiment illustrated in
Actuation sensor 90 is configured to sense conditions proximate to actuation sensor 90. This can involve sensing any of a plurality of conditions including the presence or absence of contact of an object with actuation sensor 90, an extent of contact of an object with actuation sensor 90, an amount of force, tension, torsion, shear, stress, or strain, vibration, or any other conditions caused by an object in contact with actuation sensor 90, the presence absence or relative proximity of an object proximate to actuation sensor 90 such as may be done using sensors that sense electromagnetic fields, electrical pathways, optical pathways, force waves, vibrations or other such conditions. Grip force receiving surface 100 is associated with linkage 110 such that a change in force against grip force receiving surface 100 influences linkage 110 in such a way that can be sensed by actuation sensor 90 and used by control board 74 in determining how to operate firearm accessory 20.
It will be appreciated that linkage 110 provides a physical structure, apparatus, or system that allows a force applied at a grip force receiving surface 100 to create a change that can be sensed at an actuation sensor that is separated from the grip force receiving surface by a distance that can be, for example, at least half of a length of a trigger guard 16 of a firearm 10 to which firearm accessory 20 is joined. In this embodiment, linkage 110 movably extends within a pathway 120 defined at least in part by housing 30 between grip force receiving surface 100 and a position proximate to actuation sensor 90.
It will be appreciated that actuation sensor 90, grip force receiving surface 100, linkage 110 and pathway 120 can take on a variety of forms in various embodiments.
In the embodiment illustrated in
Linkage 110 is joined to grip force receiving surface 100 and for movement within pathway 120. In this embodiment, force against grip force receiving surface 100 urges grip force receiving surface 100 toward grip 18 and the position of an actuation portion 112 of linkage 110 is moved from the position illustrated in
Grip force receiving surface 100 or linkage 110 can be biased so that upon release of force against grip force receiving surface 100, grip force receiving surface 100 is returned to the position illustrated in
Alternatively, as is illustrated in
In still another embodiment, linkage 110 itself may be resilient and capable of non-plastic extension sufficient to allow travel of grip force receiving surface 100 between the positions shown in
In this embodiment, linkage 110 rocks within pathway 120 between a first orientation shown in
In embodiments, grip force receiving surface 100 and linkage 110 may be defined so that they encounter a hand or finger of a hand gripping grip 18 such that as a user's grip closes about grip 18, grip force receiving surface 100 receives this force and is moved in a direction other than generally longitudinally as illustrated. For example, grip force receiving surface 100 may retreat at least in part upwardly into housing 30. Additionally grip force receiving surface 100 may move in a lateral direction.
In embodiments grip force receiving surface 100 may be located at any position along a length of a lower end of trigger guard 16. In embodiments grip force receiving surface 100 may be located on or in grip 18 and for example may take the form of a portion of a grip 18.
In embodiments, a biasing member may be positioned within pathway 120 to bias linkage 110 in a particular direction or orientation.
In embodiments linkage 110 may be biased into contact with an actuation sensor 90 and linkage 110 and grip force receiving surface 100 may be configured so that the application of a grip force against grip force receiving surface 100 separates linkage 110 from contact with actuation sensor 90. In one such embodiment, actuation sensor 90 may comprise a pair of electrical contacts arranged in cooperation with a linkage 110 that is at least partially conductive such that linkage 110 may be advanced into contact with the electrical contacts to close a circuit between the electrical contacts.
In embodiments, an amount of grip force necessary to cause linkage 110 to move so that actuation sensor 90 detects a condition that indicates to control board 74 that there has been a user input can be adjustable. In one embodiment this can be done by adjusting an amount of tension or bias applied to linkage 110. In another embodiment this can be done by adjusting one or more pivot or leverage points of linkage 110, a location of a connection between linkage 110 and grip force receiving surface 100, or a location of a point of a pivot or an extent of leverage between grip force receiving surface 100 and housing 30. Additionally, in embodiments, a mechanical advantage of linkage 110 may be adjustable. In still further embodiments an amount of friction experienced by linkage 110 may be adjustable. Similarly a bias member such as biasing member 108 may be adjustable.
In embodiments, a first range of grip force applied to a grip force receiving surface 100 cause linkage 110 to create a first condition that can be sensed by actuation sensor 90 and from which control board 74 can determine a first control outcome and a second range of grip force applied to a grip force receiving surface creates a second condition that can be sensed by actuation sensor 90 and from which control board 74 can determine a second control outcome. In one such embodiment, an application of a first range of grip force can cause linkage 110 to move to a first range of positions relative to actuation sensor 90 while a second range of grip force can cause linkage 110 to move to a second range of positions relative to actuation sensor 90. This may be reflected in different extents of travel of the grip force receiving surface 100 from an initial position. In such embodiments, for example, a first extent travel of the grip force receiving surface 100 from an initial to a final position may be used to bring linkage 110 into a position more proximate to actuation sensor 90 so as to ensure that actuation sensor 90 continues to send signals indicative of the second control outcome irrespective of minor changes in relative positioning that may arise as a function of inertial forces or accelerations that may occur during use.
Additionally, in embodiments, further travel of the grip force receiving surface 100 may be used to build a bias force urging linkage 110 against an actuation sensor 90 so that inertial forces or accelerations do not cause unintended separations of linkage and actuation sensor 90 when grip force receiving surface 100 has been gripped and forced to its full length of travel.
Although firearm 10 has shown as a hand gun, it is understood that firearm accessory 20 or grip activation system 20 are not limited to use with handguns, but can be employed with any pistol, gun, or rifle that selectively launches a projectile, whether by compressed gas, combustion or electromagnetic actuation. It will be appreciated that that embodiments may take the forms useful with simulated firearms such as a weapon shaped training device, or other grip controlled devices such as those that emit directed electromagnetic, fluidic and sonic outputs and models and simulators thereof. Firearm accessory 20 or grip activation system 22 may be used with non-firearm products having a grip.
Firearm accessory 20 has been described in embodiments herein as being of a type a laser beam for sighting a target. However, this is not limiting and firearm accessory 20 may perform other functions and include components configured to perform functions including but not limited to any electronic, electromechanical or electro-optical or optical function including but not limited to image capture, visible illumination, non-visible but machine detectable illumination, non-lethal deterrent operations, audio and video recording and digital data capture, processing and storage.
It will also be appreciated that linkage 110 and grip force receiving surface 100 may be separately joinable to accessory 20 such that an accessory 20 may be sold without linkage 110 and grip force receiving surface 100 but may allow accessory 20 to be joined to a linkage 110 and grip force receiving surface 100 if desired. Optionally, in embodiments of this type, a separate housing may be provided for these components. These approaches allow generic rail mountable firearm accessories that have an actuation sensor 90 to be joined linkages and grip force receiving surfaces 100 that are adapted for use with the unique shapes of particular trigger guards.
Additionally, it will be understood that there are a wide variety of rail mountable lasers that have ports for receiving switch inputs from external activation switches such as pressure switches. In embodiments, a linkage 110, grip force receiving surface 100 and actuation sensor 90 can be provided as a unit with an output that is designed to be connected to such ports and used to send signals that mimic those of the conventional pressure switch.
Additionally, it will be understood that any of a variety of different biasing members 108 can be used, including types that have adjustable bias forces. This enables user customization.
The invention has been described in detail with particular reference to certain preferred embodiments thereof, but it will be understood that variations and modifications can be effected within the spirit and scope of the invention.
Kowalczyk, Jr., John A., Mock, Jeffrey W., Tuller, Jeffrey D., St. Phillips, Eric
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Sep 01 2017 | Crosman Corporation | (assignment on the face of the patent) | / | |||
Oct 03 2017 | KOWALCZYK, JOHN A , JR | Crosman Corporation | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 044074 | /0535 | |
Oct 03 2017 | ST PHILLIPS, ERIC | Crosman Corporation | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 044074 | /0535 | |
Oct 11 2017 | MOCK, JEFFREY W | Crosman Corporation | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 044074 | /0535 | |
Oct 13 2017 | TULLER, JEFFREY D | Crosman Corporation | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 044074 | /0535 | |
Oct 24 2018 | Crosman Corporation | COMPASS GROUP DIVERSIFIED HOLDINGS LLC | SUPPLEMENT NO 1 TO INTELLECTUAL PROPERTY SECURITY AGREEMENT | 047332 | /0942 |
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