# Patent

## Title
Trigger mechanism guard assembly and method of use

## Abstract

A trigger mechanism guard assembly includes two arms, each having a first end with a trigger guarding surface and a second end and a housing with substantially parallel side surfaces configured to at least partially enclose the second ends of the arms. The housing is configured to be movable relative to the arms such that the housing has a first position and a second position, the second position being closer to the first ends of the arms compared to the first position. Movement of the housing from the first position to the second position causes movement of the first ends of the arms away from each other.

## Background
FIELD OF THE INVENTION
The present disclosure relates to a trigger mechanism guard assembly and method of securing at least a portion of a trigger mechanism using a trigger mechanism guard assembly.
BACKGROUND
Most gun and trigger mechanism guards commercially available rely on a keyed lock which allows users to store a firearm in a locked, safe state. Importantly, requiring a key to unlock the trigger mechanism guard prevents children from accidentally accessing the firearm. In the case of an emergency, however, users are left fumbling with a key and lock. Users lose significant time and advantage attempting to open standard gun and trigger mechanism locks when under stress.
Accordingly, there exists a need for a trigger mechanism guard which is capable of safely and securely preventing children from accessing a firearm while allowing quick access to firearm in case of emergency.
SUMMARY
A trigger mechanism guard assembly is disclosed which includes two arms, each having a first end comprising a trigger guarding surface and a second end; a housing having substantially parallel side surfaces, the housing at least partially enclosing the second ends of the arms and configured to be movable with respect to the arms such that the housing has a first position and a second position, wherein the second position is closer to the first ends of the arms compared to the first position, and wherein movement of the housing from the first position to the second position causes movement of the first ends of the arms away from each other.
A trigger mechanism guard assembly is disclosed which includes two arms, each arm having a first end comprising a trigger guarding surface, a second end comprising a spring mechanism-engaging protuberance, and a middle portion connecting the first and second ends and having a slide aperture for receiving a button mechanism insert; a housing at least partially enclosing the second ends and middle portions of the two arms, the housing having two spring mechanism-engaging surfaces each corresponding with a spring mechanism-engaging protuberance and two button cavities for receiving the button mechanism inserts; two spring mechanisms, each spring mechanism having a compressed position and a relaxed position and each spring mechanism engaging one of the spring mechanism-engaging protuberances and secured by the corresponding spring mechanism-engaging surface; and two compressible button mechanism inserts, each engaging both of the slides; and wherein compression of the button mechanism inserts permits movement of housing relative to the two arms to change the springs from the relaxed position to the compressed position.
A method of using a trigger mechanism guard assembly is also disclosed. The method comprises (a) providing a trigger mechanism guard assembly according to any of the embodiments herein described and at least one of (b) removing the trigger mechanism guard assembly from at least a portion of a trigger mechanism and (c) securing the trigger mechanism guard assembly to at least a portion of a trigger mechanism, wherein the step of (b) removing the trigger mechanism guard assembly from at least a portion of a trigger mechanism comprises compressing the button inserts; sliding the housing toward the first end of the arms, thereby causing the two arms to separate; and allowing the trigger mechanism guard assembly to move away from the at least a portion of the trigger mechanism as a single unit; and wherein the step of (c) securing the trigger mechanism guard assembly to at least a portion of a trigger mechanism comprises positioning at least a portion of a trigger mechanism between the trigger mechanism guarding surfaces, compressing the button inserts, and allowing the housing to move away from the first ends of the arms such that the arms close against the at least a portion of the trigger mechanism.



BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is an exploded view of an exemplary trigger mechanism guard assembly;
FIG. 2A illustrates the trigger mechanism guard assembly of FIG. 1 fully assembled;
FIG. 2B illustrates the trigger mechanism guard assembly of FIG. 1 fully assembled with the upper housing removed;
FIGS. 3A-3D illustrate exemplary arms for a trigger mechanism guard assembly;
FIG. 4A is a perspective view of an exemplary lower portion of the housing for a trigger mechanism guard assembly;
FIG. 4B is a top view of the exemplary lower portion of the housing shown in FIG. 4A;
FIG. 5A is a perspective view of an exemplary upper portion of the housing for a trigger mechanism guard assembly;
FIG. 5B is a bottom view of the exemplary upper portion of the housing shown in FIG. 5A;
FIG. 6 illustrates an exemplary trigger mechanism guard assembly securing the trigger of a firearm;
FIG. 7 illustrates an exemplary trigger mechanism guard assembly securing the trigger of a firearm with the button inserts compressed;
FIG. 8 illustrates an exemplary trigger mechanism guard assembly securing the trigger of a firearm with the housing moved forward compressing the spring mechanisms;
FIG. 9 illustrates an exemplary trigger mechanism guard assembly removed from the trigger of a firearm as a single unit;
FIG. 10A is a flowchart showing a method of removing a trigger mechanism guard assembly from at least a portion of a trigger of a firearm; and
FIG. 10B is a flowchart showing the method of securing a trigger mechanism guard assembly to at least a portion of a trigger of a firearm.



DETAILED DESCRIPTION
FIG. 1 is an exploded view of an exemplary trigger mechanism guard assembly 100. As illustrated in the embodiment shown in FIG. 1, the trigger mechanism guard assembly 100 includes a pair of arms 10a, 10b, a housing 20, which in some embodiments comprises a lower portion 20a and an upper portion 20b, a pair of button mechanisms 30 and a pair of spring mechanisms 25. FIG. 2A shows the exemplary trigger mechanism guard assembly 100 of FIG. 1 fully assembled.
With further reference to FIGS. 3A and 3C, the arms 10a, 10b are configured to guard at least a portion of a trigger mechanism. In an embodiment, each arm 10a, 10b includes a first end 11 containing a trigger mechanism guarding surface 12 (shown in FIG. 1) configured to guard at least a portion of a trigger mechanism and a second end 16 configured to engage the spring mechanism 25 in the housing 20.
The trigger mechanism guarding surfaces 12 secure around at least a portion of a trigger mechanism of a firearm. As used herein, the term “firearm” refers not only to pistols, rifles, handguns and other portable guns, but also any structure, mechanism or assembly which releases a projectile upon activation of a trigger mechanism, such as, for example, a switch, trigger, button, lever or other device. Examples of firearms other than guns includes, for example, stun guns, tasers, Airsoft and paintball guns, and other non-lethal or less than lethal projectile devices.
Because different makes and models of firearms have different trigger mechanisms, for example, in terms of size, shape and proportions, the trigger mechanism guarding surfaces 12 used to secure one model of firearm may not be suitable for securing a different model of firearm. In one embodiment, therefore, the trigger mechanism guarding surfaces 12 may be specifically manufactured to correspond to a specific firearm and/or design of trigger mechanism or portion of a trigger mechanism. In further embodiments, and as shown in FIG. 1, the trigger mechanism guarding surfaces 12 are removable by screws 13 and may be replaced or exchanged with other trigger mechanism guarding surfaces of a different size, shape or proportion in order to secure a different make or model of firearm.
The arms 10a, 10b further include a second end 16 which contains a spring mechanism-engaging protuberance 18 around which spring mechanisms 25 are slidably engaged.
In an embodiment, the spring mechanisms 25 may be any spring mechanism which can change between a compressed and an extended (or relaxed) position. The spring mechanism 25 may be any spring mechanism that works with a linear motion. For example, in the embodiment shown, the spring mechanisms 25 are coil compression springs which are extended when in a relaxed state and compress when a load is applied.
In a further embodiment, the spring mechanisms 25 are made of coiled wire, such as steel, having a diameter of 0.050 inches to 0.030 inches, or preferably 0.045 inches to 0.035 inches, or more preferably 0.040 inches to 0.038 inches. The coiled spring mechanisms 25 have an outer diameter of 0.350 inches to 0.200 inches, preferably 0.300 inches to 0.250 inches, and more preferably 0.300 inches to 0.275 inches. The spring mechanisms 25 have a relaxed length of 2.00 inches to 0.75 inches, preferably 1.75 inches to 1.00 inches, and more preferably 1.50 inches to 1.20 inches. The spring mechanisms 25 have a compressed length of 1.00 inches to 0.25 inches, preferably 0.80 inches to 0.35 inches, and preferably 0.75 inches to 0.50 inches.
In a particularly preferred embodiment, the spring mechanisms 25 have are coiled springs having an outer coil diameter of 0.281 inches and are made of coiled wire having a diameter of 0.039 inches, a relaxed length of 1.25 inches, and a compressed length of 0.60 inches.
In an embodiment, the arms 10a, 10b also include a middle portion 14 containing a slide aperture 15 configured to engage the button mechanisms 30. In the exemplary embodiment shown as in FIGS. 3A and 3C, the slide apertures 15 are approximately bone-shaped have two rounded end portions 15a, 15b separated by an elongated channel portion 15c. The rounded end portions 15a, 15b have a diameter which is greater than the overall height of the elongated channel portion 15c. As will be described in detail later, the dimensions of the rounded end portions 15a, 15b relative to the elongated channel portion 15c permits the button mechanisms 30 to lock in position when engaging either of the rounded end portions 15a, 15b. 
In some embodiments, middle portions 14 may also include one or more guiding protuberances 17 on one or both of the upper horizontal surface 19a or lower horizontal surface 19b of the arms 10a, 10b. In the exemplary embodiment shown, middle portions 14 include four total guiding protuberances 17, two on each horizontal surface 19a, 19b and positioned to approximately correspond with the rounded end portions 15a, 15b of the slide aperture 15.
As illustrated in FIGS. 3B and 3D, in an embodiment, second ends 16 are angled at an angle of A relative to the middle portion 14. In the exemplary embodiment shown in FIG. 3, the second ends 16 are angled at an angle A of approximately 160° to 170° relative to the middle portion 14. In further embodiments, the second ends 16 are angled at an angle A of approximately 160° to 165°, or more preferably at 162°.
While the first ends 11 and middle portions 14 are approximately parallel with one on another, a transition portion 26 between the first ends 11 and middle portions 14 serves to offset them by a distance. In an embodiment, the first ends 11 and middle portions 14 are offset by a distance approximately equal to the thickness of the material of the arms 10a, 10b. 
One specific embodiment of the arms 10a, 10b is described as follows. Arms 10a, 10b are each made of a rigid material, such as plastic or metal. Together, the first end 11 and middle portion 14 have a total length of 4.56 inches, with the second end 16 being angled at 162° relative to the first end 11 and middle portion 14. The transition portion 26 between the first end 11 and middle portion 14 includes a first 90° jog, a second 90° jog, a first 30° jog and a second 30° jog, bringing the middle portion 14 substantially parallel with the first end 11. The middle portion 14 includes slide aperture 15 with the distance from the center of the rounded end portion 15a to the center of the rounded end portion 15b being 0.52 inches. The height of the elongated channel portion 15c is 0.20 inches, and the diameter of the rounded end portions 15a, 15b is 0.28 inches.
In an embodiment, as shown in FIGS. 3A-3D, the middle portion 14 includes two guiding protuberances 17 on the upper horizontal surface 19a and two guiding protuberances 17 on the lower horizontal surface 19b. The length of and distance between guiding protuberances 17 can affect the motion of the housing 20 relative to the arms 10a, 10b, as the motion is described below. For example, changing the dimensions of the guiding protuberances 17 can affect the stroke length, or distance the housing 20 must move in order to close or separate the arms 10a, 10b, or speed at which the arms 10a, 10b open. In an embodiment, each guiding protuberance 17 has a length of 0.3 inches to 0.05 inches, or 0.25 to 0.10 inches. In an embodiment, the distance between guiding protuberances 17 as measured form the center of one to the center of the other is 0.40 inches to 0.75 inches, or 0.5 inches to 0.65 inches. In an exemplary embodiment, as shown in FIGS. 3A-3D, each guiding protuberance 17 has a length of 0.10 inches and the distance between the guiding protuberances 17 as measured from the center of one to the center of the other is 0.60 inches.
FIGS. 4A-5B illustrate an exemplary housing 20 for a trigger mechanism guard assembly 100. As shown, housing 20 includes a lower portion 20a and an upper portion 20b configured to secure together as a single unit and at least partially house the second ends 16 of arms 10a, 10b. 
In particular, FIGS. 4A and 4B show the lower portion 20a of an exemplary housing 20. The bottom portion 20a of housing 20 includes an outer body 51a having two sides 52a, each containing an approximately semi-circular depression 56a, a first end 53a which is open, a second end 54a with an approximately semi-circular depression 57a and a bottom surface 55a. FIGS. 5A and 5B show the upper portion 20b of an exemplary housing 20. The upper portion 20b of housing 20 also includes an outer body 51b having two sides 52b, each containing an approximately semi-circular depression 56b, a first end 53b which is open, a second end 54b with an approximately semi-circular depression 57b, and an upper surface 55b. 
As shown in FIG. 2A, the upper and lower portions 20a, 20b of the housing 20 are configured to be securely joined together, releasably or unreleasably, to form the singe housing 20. In an embodiment, as shown in FIGS. 4A and 5A, sides 52a, 52b also include corresponding pin apertures 59a, 59b which receive pins 22 (shown in FIG. 1) to secure the lower portion 20a and upper portion 20b of housing 20 together. However, in further embodiments, the upper and lower portions 20a, 20b of the housing 20 may be joined using other structures and/or mechanisms which form a releasable connection between the upper and lower portions 20a, 20b, such as by clips, fasteners, screws, and adhesives. In still further embodiments, the upper and lower portions 20a, 20b of the housing 20 may be joined using unreleasable structures or methods, such as by welding or permanent adhesives.
As will be understood, when housing 20 is assembled, the respective semi-circular depressions 56a/56b and 57a/57b align to create apertures 56, 57 (as shown in FIGS. 2A and 2B) in the housing 20. As will be shown in FIGS. 2A and 2B, apertures 56 are button cavities which contain button mechanisms 30, and aperture 57 contains the optional locking mechanism 72 when included with trigger guard assembly 100.
As shown best in FIG. 1, the compressible button mechanism inserts 30 include a pin or pin-like structure 36 and a button structure 32. The pin or pin-like structure has a narrow body 35 around which a spring mechanism 34 is secured and a head portion 33 which together with the button structure 32 prevents the spring mechanism 34 from disengaging the pin or pin-like structure 36.
As will be understood with reference to FIGS. 1 and 2B, when the trigger guard assembly 100 is fully assembled, compressing the button mechanism inserts 30 permits the pin or pin-like structure 36 to be slidable in the slide apertures 15. The housing 20, as a whole, may then be moved either toward or away from the arms 10a, 10b. This movement will be described in further detail below.
With reference to FIGS. 1 and 2B, the optional locking mechanism 72 is illustrated as a standard keyed lock. When a key is inserted into the locking mechanism 72, the key is rotated, causing protuberance 74 to rotate. When in a locked position, the protuberance 74 prevents movement of the housing 20 relative to the arms 10a, 10b. When in an unlocked position, protuberance 74 permits movement of the housing 20 relative to the arms 10a, 10b. However, in further embodiments, the locking mechanism 72 may be any suitable structure or assembly to prevent the movement of the housing 20 relative to the arms 10a, 10b. 
With reference to the embodiments shown in FIGS. 4A-4B and 5A-5B, lower portion 20a of housing 20 also includes an internal guiding structure 61a, which in the exemplary embodiment shown has an approximately trapezoidal shape with a lip 62 occurring at approximately half the length on both sides of guiding structure 61a. In an embodiment, the lip 62 serves as a contacting surface for the spring mechanisms 25 to ensure the spring mechanisms 25 remain engaged in the spring mechanism channels 66, described below. The upper portion 20b includes a similar guiding structure 61b, with the exception that guiding structure 61b does not include any lips, such that when the upper and lower housing portions 20a, 20b are assembled, the guiding structures 61a, 61b are adjacent one another. In an embodiment, the guiding structures 61a, 61b physically contact one another when housing 20 is assembled. In a further embodiment, the guiding structures 61a, 61b do not physically contact one another when housing 20 is assembled, such that there is a gap between guiding structures 61a, 61b. 
In an embodiment, as shown in FIGS. 4B and 5B, the guiding structures 61a, 61b are symmetrically positioned with respect to a central line C and are generally trapezoidal with the sides of the trapezoidal shape occurring at an angle of approximately 10° to 25°, preferably 15° to 20°, and most preferably 18° relative to central line C.
In an embodiment, the lower portion 20a also includes spring mechanism-engaging surfaces 65, which in the embodiment shown are located at the end of spring mechanism channels 66. As will be understood, when the arms 10a, 10b are positioned within the assembled housing 20, the spring mechanism-engaging protuberances 18, around which the spring mechanisms 25 are positioned, are contained in the spring mechanism channels 66. The spring mechanisms 25 are prevented from disengaging the spring mechanism-engaging protuberances 18 by the spring-engaging surfaces 65. Movement of the housing 20 towards the arms 10a, 10b therefore compresses the spring mechanisms 25.
In an embodiment, as illustrated in FIGS. 4B and 5B, the lower portion 20a, also includes a plurality of guiding channels 68a and the upper portion 20b may include a plurality of corresponding guiding channels 68b. The guiding channels 68a, 68b correspond to guiding protuberances 17 on arms 10a, 10b when the housing 20 and arms 10a, 10b are assembled. Together, the corresponding guiding protuberances 17 and guiding channels 68a, 68b guide the movement of the housing 20 relative to the arms 10a, 10b, which will be described in further detail below.
Like the guiding structures 61a, 61b, the guiding channels 68a, 68b in the embodiment shown are symmetrically positioned with respect to a central line C and are generally parallel to the angled sides of the trapezoidal guiding structure 61a, 61b. In an embodiment, the guiding channels 68a, 68b are positioned at an angle of approximately 10° to 25°, preferably 15° to 20°, and most preferably 18° relative to central line C.
The movement of housing 20 relative to arms 10a, 10b is now described with reference to FIG. 2B and FIGS. 6-9. The housing 20 is configured to be movable with respect to the arms 10a, 10b such that the housing 20 has a first position and a second position. The second position, as illustrated in FIG. 8, is closer to the first ends 11 of the arms 10a, 10b compared to the first position, as illustrated in FIGS. 6-7. Movement of the housing 20 from the first position to the second position causes movement of the first ends 11 of the arms 10a, 10b away from each other.
In further detail, as shown in FIG. 2B, the optional locking mechanism 72 is actually shown in the locked position, with the protuberance 74 blocking the second end 16 of arm 10b from sliding within channel 66. In the embodiment shown in FIG. 2B, the spring mechanisms 25 are in the relaxed position, with the arms housing 20 in its furthest location from the first ends 11 of arms 10a, 10b. When the optional locking mechanism 72 is rotated to its unlocked position, the protuberance 74 moves out of the way of the second ends 16 of the arms 10a, 10b. Housing 20 can therefore move relative to the arms 10a, 10b, towards the first ends 11 of the arms 10a, 10b. Movement of the housing 20 towards the first ends 11 of the arms 10a, 10b causes the first ends 11 of the arms 10a, 10b to separate.
In an embodiment, the above-described movement of the arms 10a, 10b, regardless of whether the optional locking mechanism 72 is used, is further prevented or controlled by button mechanisms 30. When button mechanisms 30 are not compressed, movement of the housing 20 relative to the arms 10a, 10b is prevented by the engagement of the pin or pin-like structure 36 with the slide apertures 15. Specifically, in an embodiment, when the button mechanisms 30 are not compressed, the head portion 33 of the pin or pin-like structure 36 is engaged with the slide apertures 15, and specifically the rounded end portions 15a of the slide apertures 15. The pin or pin-like structures 36 are therefore prevented from moving through the slide apertures 15, and the housing 20 is thereby prevented from movement relative to the arms 10a, 10b. 
When the compressible button mechanisms 30 are compressed, the head portion 33 of the pin or pin-like structure 36 moves inward to exit the rounded end portion 15a of the slide apertures 15 and the narrow body 35 of the pin or pin-like structure 36 is engaged in the slide apertures 15. The pin or pin-like structures 36 are therefore slidable in the slide apertures 15. As is understood, in order to fully effect movement of the housing 20 relative to the arms 10a, 10b, both button mechanisms 30 must be compressed simultaneously.
With the pin or pin-like structures 36 slidable in the slide apertures 15, housing 20 can moved towards the first ends 11 of arms 10a, 10b. As a user manually moves the housing 20, the spring mechanisms 25 begin to compress, thereby resisting the movement of the housing 20. Additional force is therefore required to continue moving the housing 20 relative to the arms 10a, 10b. In an exemplary embodiment, the force required move the housing 20 relative to the arms 10a, 10b is approximately 15 pounds to 30 pounds, depending on the specific spring mechanisms 25 used.
In a further exemplary embodiment, the spring mechanisms 25 are made of coiled wire, such as steel, having (a) a diameter of 0.050 inches to 0.030 inches, or preferably 0.045 inches to 0.035 inches, or more preferably 0.040 inches to 0.038 inches, (b) have an outer diameter of 0.350 inches to 0.200 inches, preferably 0.300 inches to 0.250 inches, and more preferably 0.300 inches to 0.275 inches, (c) have a relaxed length of 2.00 inches to 0.75 inches, preferably 1.75 inches to 1.00 inches, and more preferably 1.50 inches to 1.20 inches, and (d) have a compressed length of 1.00 inches to 0.25 inches, preferably 0.80 inches to 0.35 inches, and preferably 0.75 inches to 0.50 inches, and the force required to move the housing 20 is approximately 15 pounds to 30 pounds, or preferably 20 to 25 pounds.
In a particularly preferred embodiment, the spring mechanisms 25 have are coiled springs having an outer coil diameter of 0.281 inches and are made of coiled wire having a diameter of 0.039 inches, a relaxed length of 1.25 inches, and a compressed length of 0.60 inches, and the force required to move the housing 20 relative to the arms 10a, 10b is approximately 23 pounds.
The compressible button inserts 30 can be released as the housing 20 starts moving. The head portions 33 of the pin or pin-like structures 36 prevent the narrow body 35 of the pin or pin-like structures 36 from disengaging the channels 15c. 
In an embodiment, as a result of the guiding apertures 17 engaging the guiding channels 68a, 68b of the housing 20, which are angled, and the internal guiding structures 61a, 61b, also angled, movement of the housing 20 also causes the first ends 11 of arms 10a, 10b to begin to separate.
Once the housing 20 is moved as far as permitted towards the first ends 11 of arms 10a, 10b, the pin or pin-like structures 36 have also reached the second rounded end portions 15b. The springs 24 of the button inserts 30, which were under tension when the narrow body 35 of the pins or pin-like mechanisms 36 were engaged in the channels 15c, are able to relax, causing the head portions 33 of the pin or pin-like structures 36 to engage the rounded end portions 15b, essentially locking the housing 20 in position with the spring mechanisms 25 in a compressed state.
FIG. 6 illustrates an exemplary trigger mechanism guard assembly 100 in combination with a firearm 90. In an embodiment, the trigger mechanism guard assembly 100 may be an embodiment or combination of embodiments as described herein.
As illustrated in FIG. 6, the exemplary trigger mechanism guard assembly 100 is securing at least a portion of a trigger mechanism 91 (shown in FIG. 9) of a firearm 90. Although the firearm 90 is illustrated as a handgun, the firearm may be any other firearm as described above.
In an embodiment, the arms 10a, 10b are tightly secured with respect to at least a portion of the trigger mechanism 91 of the firearm 90, or as illustrated, with respect the entire trigger portion 91. In an embodiment, the first ends 11 of arms 10a, 10b, and specifically the trigger mechanism guarding surfaces 12 of the first ends 11, may physically contact at least a portion of the trigger mechanism 91. However, in other embodiments, the first ends 11 of arms 10a, 10b, or specifically the trigger mechanism guarding surfaces 12, may be configured to surround or otherwise guard at least a portion of the trigger mechanism 91 without physically contacting any portion of the trigger mechanism 91 itself.
Because the arms 10a, 10b are tightened with respect to the trigger mechanism 91 of firearm 90 so as to guard the trigger mechanism from activation, it is understood that the housing 20 is in the position furthest away from the first ends 11 of arms 10a, 10b. In order to remove the trigger mechanism guard assembly 100 from the firearm 90, the housing 20 will need to be moved towards the first ends 11 of arms 10a, 10b to separate the arms 10a, 10b, as previously described with reference to FIG. 2B.
To begin disengaging the trigger mechanism guard assembly 100 from the firearm 90, the button inserts 30 are first depressed as shown in FIG. 7. As described with reference to FIG. 2B, the housing 20 is then moved towards the first ends 11 of the arms 10a, 10b, as shown in FIG. 8. In order to move the housing 20 towards the first ends 11 of the arms 10a, 10b, a user will need to use sufficient force to compress the spring mechanisms 25. This action mimics the pump action of a traditional pump action rifle and requires significant force to accomplish. The force necessary to compress the spring mechanisms 25 depends on the material of the wire of the spring mechanisms 25, the wire diameter, the coil diameter, or the length of the spring mechanism 25.
As the arms 10a, 10b separate, they expose the trigger mechanism 91, or the at least a portion of the trigger mechanism 91, of the firearm 90, and the trigger guard assembly 100 is able to fall away from the firearm 90. As shown in FIG. 9, the trigger mechanism guard assembly 100 is removed from the firearm 90 as a single unit, e.g., the housing 20 remains fully assembled around the first ends 11 of arms 10a, 10b. 
To once again secure the trigger mechanism guard assembly 100 with respect to the trigger mechanism 91, or at least a portion of the trigger mechanism 91, of the firearm 90, the trigger mechanism 91 or portion thereof is positioned between the first ends 11 of the arms 10a, 10b. Because the spring mechanisms 25 are already locked in the compressed position, once the compressible button mechanisms 30a, 30b are compressed, making the pin or pin-like structures 36 freely slidable in the slide apertures 15, the spring mechanisms 25 are able to release to their relaxed positions. The housing 20 is therefore forced back to its position furthest away from the first ends 11 of arms 10a, 10b, causing the first ends 11 of the arms 10a, 10b to tighten with respect to the trigger mechanism 91.
FIG. 10A is a flowchart showing the steps for removing a trigger mechanism guard assembly from a trigger. Step 201 comprises providing a trigger guard assembly. The trigger mechanism guard assembly may be any embodiment or combination of embodiments as described herein.
In an embodiment, the step of providing a trigger mechanism guard assembly includes providing a trigger mechanism guard assembly having two arms, each arm having a first end with a trigger mechanism guarding surface and a second end with a spring mechanism-engaging protuberance; a housing at least partially enclosing the second ends of the two arms, the housing having two spring mechanism-engaging surfaces each corresponding with a spring mechanism-engaging protuberance and two button cavities containing compressible button mechanism inserts; two spring mechanisms, each spring mechanism having a compressed position and a relaxed position and each spring mechanism engaging one of the spring mechanism-engaging protuberances and secured by the corresponding spring mechanism-engaging surface. In an embodiment, the spring mechanisms are coil springs having an outer diameter of 0.350 to 0.200 inches and made from coiled wire having a diameter of 0.050 to 0.030 inches.
Step 203 comprises compressing the button inserts. Step 205 comprises sliding the housing toward the first end of the arms, thereby causing the arms to separate. In an embodiment, the step of sliding the housing toward the first end of the arms 205 further includes compressing the spring mechanisms into the compressed position. Step 207 comprises allowing the trigger mechanism guard assembly to move away from the trigger mechanism as a single unit.
In an embodiment, the arms of the trigger mechanism guard assembly include a middle portion with a slide aperture which engages the compressible button inserts and the step of compressing the button inserts 203 further includes compressing the button inserts such that at least a portion of the button inserts is slidable within the slide apertures.
In an embodiment, the trigger mechanism guard assembly further includes a locking mechanism, and the method for removing the trigger guard from the at least a portion of a trigger mechanism further comprises unlocking the locking mechanism.
FIG. 10B is a flowchart showing the steps for securing a trigger mechanism guard assembly to a trigger mechanism or at least a portion of a trigger mechanism. Step 301 comprises providing a trigger mechanism guard assembly. The trigger mechanism guard assembly may be any embodiment or combination of embodiments as described herein.
In an embodiment, the step of providing a trigger mechanism guard assembly includes providing a trigger mechanism guard assembly having two arms, each arm having a first end with a trigger mechanism guarding surface and a second end with a spring mechanism-engaging protuberance; a housing at least partially enclosing the second ends of the two arms, the housing having two spring mechanism-engaging surfaces each corresponding with a spring mechanism-engaging protuberance and two button cavities containing compressible button mechanism inserts; two spring mechanisms, each spring mechanism having a compressed position and a relaxed position and each spring mechanism engaging one of the spring mechanism-engaging protuberances and secured by the corresponding spring mechanism-engaging surface. In an embodiment, the spring mechanisms are coil springs having an outer diameter of 0.350 to 0.200 inches and made from coiled wire having a diameter of 0.050 to 0.030 inches.
Step 303 comprises positioning at least a portion of a trigger mechanism with respect to (e.g., between) the trigger mechanism guarding surfaces. Step 305 comprises compressing the button inserts. Step 307 comprises allowing the housing to move away from the first ends of the arms such that the arms close against the at least a portion of the trigger mechanism.
In an embodiment, the trigger mechanism guard assembly further includes a locking mechanism, and the method for securing the trigger mechanism guard assembly to at least a portion of a trigger mechanism further comprises locking the locking mechanism.
It shall be understood that various changes and modifications to the presently preferred embodiments described herein will be apparent to those skilled in the art. Such changes and modifications can be made without departing from the spirit and scope of the present subject matter and without diminishing its intended advantages. It is therefore intended that such changes and modifications be covered by the appended claims.

## Claims

1. A method of removing a trigger mechanism guard assembly from a trigger comprising:
providing a firearm comprising a trigger mechanism and a trigger mechanism guard assembly secured to at least a portion of the trigger mechanism, wherein the trigger mechanism guard assembly comprises two arms, each having a first end comprising a trigger guarding surface in contact with the at least a portion of the trigger mechanism and a second end, and a housing at least partially enclosing the second ends of the arms and comprising two compressible button mechanism inserts, each compressible button mechanism inserts engaging a respective arm;
compressing, simultaneously, each of the compressible button mechanism inserts;
manually sliding the housing toward the first end of the arms, thereby causing the first ends of the arms to separate from each other; and
allowing the trigger mechanism guard assembly to fall away from the trigger mechanism as a single unit.

2. The method of claim 1, wherein the trigger guarding surfaces are in direct contact with the at least a portion of the trigger mechanism.

3. The method of claim 2, wherein the step of manually sliding the housing toward the first end of the arms comprises manually sliding the housing toward the first end of the arms, thereby causing the first ends of the arms to separate from each other and the trigger mechanism such that the trigger guarding surfaces are not in direct contact with the at least a portion of the trigger mechanism.

4. The method of claim 1, wherein the housing further comprises two spring mechanisms, each spring mechanism engaging one of the arms and its respective compressible button mechanism insert.

5. The method of claim 4, wherein the spring mechanisms each have a compressed position and a relaxed position, and the step of providing a firearm comprises providing a firearm comprising a trigger mechanism and a trigger mechanism guard assembly secured to at least a portion of the trigger mechanism, wherein the trigger mechanism guard assembly comprises two arms, each having a first end comprising a trigger guarding surface in contact with the at least a portion of the trigger mechanism and a second end, and a housing at least partially enclosed around the second ends of the arms and comprising two spring mechanisms and two compressible button mechanism inserts, wherein one of each of the spring mechanisms and compressible button mechanism inserts engages the second end of a respective arm, wherein the spring mechanisms are in the relaxed position.

6. The method of claim 5, wherein the step of manually sliding the housing toward the first end of the arms, thereby causing the first ends of the arms to separate from each other comprises manually sliding the housing toward the first end of the arms, thereby changing the spring mechanisms from the relaxed position to the compressed position and causing the first ends of the arms to separate from each other.

7. The method of claim 6, wherein the housing comprises two spring mechanism-engaging surfaces, each corresponding with one of the second ends of the arms, and each spring mechanism engages one of the second ends of the arms and is secured by the corresponding spring mechanism-engaging surface.

8. The method of claim 1, wherein the method further comprises grasping the housing simultaneously with compressing each of the compressible button mechanism inserts.

9. The method of claim 8, further comprising the step of releasing the housing after the step of allowing the trigger mechanism guard assembly to fall away from the trigger mechanism as a single unit and allowing the first ends of the arms to close towards one another.

10. The method of claim 1, wherein the step of compressing the compressible button mechanism inserts comprises compressing the compressible button mechanism inserts such that at least a portion of the compressible button mechanisms inserts is slidable within a slide aperture in each of the arms.

11. A method of removing a trigger mechanism guard assembly from a trigger comprising:
providing a firearm comprising a trigger mechanism and a trigger mechanism guard assembly secured to at least a portion of the trigger mechanism, wherein the trigger mechanism guard assembly comprises two arms, each having a first end comprising a trigger guarding surface in contact with the at least a portion of the trigger mechanism, a middle portion and a second end, and a housing at least partially enclosed around the second ends of the arms and comprising two spring mechanisms, each comprising a relaxed position and a compressed position, and two compressible button mechanism inserts, each spring mechanism engaging the second end of a respective arm and each compressible button mechanism insert engaging the middle portion of a respective arm, wherein the spring mechanisms are in the relaxed position;
compressing, simultaneously, each of the compressible button mechanism inserts;
compressing the spring mechanisms to the compressed position, thereby causing the first ends of the arms to separate; and
allowing the trigger mechanism guard assembly to fall away from the trigger mechanism as a single unit.

12. The method of claim 11, further comprising allowing the housing to move away from the first ends of the arms, thereby causing the first ends of the arms to close towards each other.

13. The method of claim 11, wherein the housing further comprising two spring mechanism-engaging surfaces each corresponding with one of the second ends of the arms.

14. The method of claim 13, wherein spring mechanisms each engage one of the second ends of the arms and are secured by the corresponding spring mechanism-engaging surface.

15. The method of claim 14, wherein the step of compressing the spring mechanisms to the compressed position comprises grasping the housing and manually moving the housing towards the first ends of the arms, thereby compressing the spring mechanisms between the second ends of the arms and the corresponding spring mechanism engaging surfaces.

16. The method of claim 15, further comprising the step releasing the housing, thereby allowing the housing to move away from the first ends of the arms and causing the first ends of the arms to close towards each other.

17. The method of claim 14, wherein the middle portions of the arms each contain an upper surface comprising at least two guiding protuberances and a lower surface comprising at least two guiding protuberances, wherein the housing comprises an upper portion having two sides and at least four guiding channels, each corresponding to a respective guiding protuberance on the upper surface of the middle portion of the arms, and a lower portion having two sides and at least four guiding channels, each corresponding to a respective guiding protuberance on the lower surface of the middle portion of the arms, wherein the guiding channels are positioned at an angle of 10° to 25° relative to a central line substantially parallel with the arms;
wherein the step of moving the housing toward the first end of the arms causes the guiding channels to force the guiding protuberances towards the sides of the housing, thereby causing the two arms to separate.

18. The method of claim 17, further comprising the step of allowing the housing to move away from the first ends of the arms, thereby causing the guiding channels to force the guiding protuberances away from the sides of the housing and the two arms to close.