CA1295159C - Bolt release trigger safety mechanism for firearms - Google Patents
Bolt release trigger safety mechanism for firearmsInfo
- Publication number
- CA1295159C CA1295159C CA000561148A CA561148A CA1295159C CA 1295159 C CA1295159 C CA 1295159C CA 000561148 A CA000561148 A CA 000561148A CA 561148 A CA561148 A CA 561148A CA 1295159 C CA1295159 C CA 1295159C
- Authority
- CA
- Canada
- Prior art keywords
- safety
- bolt
- lever
- sear
- arm
- 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.)
- Expired - Lifetime
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Abstract
BOLT RELEASE TRIGGER SAFETY MECHANISM FOR FIREARMS
ABSTRACT OF THE DISCLOSURE
This invention is an integrated three-position or three-stage safety mechanism for firearms that allows the release of a locked breech bolt mechanism while a Safety Lever is in the "Safe" (position No. 1) or no fire position, when the trigger and/or the sear mechanism is locked. While in Position No. 1, the safety mechanism allows the firearms' handler or user the ability to depress the Safety Lever (Position No. 2) to release, lift, rotate, open, and/or remove the bolt assembly as desired. The design of the safety mechanism prohibits the operator from inadvertently moving the Safety Lever to the OFF or "Fire" position (Position No. 3), while depressing the Safety Lever (Position No. 2) to release the bolt assembly. This allows removal of the "live" or empty cartridges while the Safety Lever is locked and blocked in the "Safe" or OFF position, thus significantly enhancing the safety of this operation.
This invention is an adaptable enhancement to firearms that use the older or recent two-stage top or side safety trigger blockage or sear blockage safety devices, thus enhancing the safety and handling features on a wide variety of firearms. The adaptation of this invention as an enhanced safety replacement device is a simple task for a qualified gunsmith or one skilled in the art of firearm repairs.
ABSTRACT OF THE DISCLOSURE
This invention is an integrated three-position or three-stage safety mechanism for firearms that allows the release of a locked breech bolt mechanism while a Safety Lever is in the "Safe" (position No. 1) or no fire position, when the trigger and/or the sear mechanism is locked. While in Position No. 1, the safety mechanism allows the firearms' handler or user the ability to depress the Safety Lever (Position No. 2) to release, lift, rotate, open, and/or remove the bolt assembly as desired. The design of the safety mechanism prohibits the operator from inadvertently moving the Safety Lever to the OFF or "Fire" position (Position No. 3), while depressing the Safety Lever (Position No. 2) to release the bolt assembly. This allows removal of the "live" or empty cartridges while the Safety Lever is locked and blocked in the "Safe" or OFF position, thus significantly enhancing the safety of this operation.
This invention is an adaptable enhancement to firearms that use the older or recent two-stage top or side safety trigger blockage or sear blockage safety devices, thus enhancing the safety and handling features on a wide variety of firearms. The adaptation of this invention as an enhanced safety replacement device is a simple task for a qualified gunsmith or one skilled in the art of firearm repairs.
Description
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BOLT REL~ASE ~RIGGER SAFETY MECHANISM FOR FIREA~MS
Field of the Invention This invention relates to firearms and has particular reference to means for controlling the firing, handling, and related safety thereof.
Backqround Discussion Many modern day sporting and military firearms employ a breech closing bolt which has a reciprocating movement in opening and closing the breech and which may be locked in the closed position by any applicable suitable method.
Historically, firearm safeties have functions under one or two basic concepts, e.g. (1) blockage of the firing pin striker assembly, or (2) blockage of the trigger or sear on trigger mechanism safeties.
A suitable fire control for most firearms provides for a readily operable means for locking the firing pin positively in a "Safe" position, as well as a trigger controlled sear to permit the instant release of the firing pin when it is desired to fire or discharye the projectile from the weapon. ~o this end it has been found to be essential that the safety device be so arranged than an inadvertent operation of the trigger while the safety is in "Safe" position will not condition the firearm to fire upon the release of the saeety. It has also heen further determined that a safety device should be capable of being actuated to allow release and rotation of the breech bolt assembly while in the "Safe" position where the sear or trigger mechanism is locked, preventing the firearm from firing, so that such firearm might be rendered free of its ~ ~rn/
cartridges and/or the removal of the bolt assembly from the action, thus further enhancing the handling and storage safety of the firearm.
It ls contemplated that these objects may be best atta:Lned by mounting on the receiver a trigger housing having two members which prevent movement of the firing pin. One of the members may be conven-iently identified as a safety inner arm and the other the sear. A
safety lever is arranged to move the safety and the imler arm to pro-hibit sear movement arranged to prevent movement of the sear. Control-ling the movement of the sear through these members enables the firing pin to operate.
Summary of Invention Generally speaking, the present invention may be considered as providing a safety mechanism for a firearm having a bolt including a slidable firing pin, a trigger housing, and a sear movably mounted to the trigger housing for controlling the firing of the firing pin, the safety mechanism comprising: a safety pivotally mounted to the trigger housing for rotation about a pivot pin by means of manually induced pivotal movement of a lever arm portion of the safety between a "safe" position, in which a bolt lock arm portion of the safety is brought into bolt movement blocking position and an inner arm portion of the safety is brought into sear movement bl.ocklng posltlon, and a "fire" positlon, in which movement of the bolt and sear are unobstructecl by the safety; and means, responslve to translatlonal movement of the lever arm portlon while the safety is in the "safe" positlon, to tem-porarily back the bolt lock arm portion out of the bolt movement blocklng position while the inner arm portion remains in the sear move ment blocking position, whereby the bolt can be withdrawn without pivoting the safety toward the "fire" position.
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This invention thereEore provides a fire control device having a three-position or three-stage safety which operates by positively moving the firing pin rearwardly out of contact with the trigger assembly and there releasably retaining it. In this way, should the trigger be operated while the safety is engaged, the trig-ger and sear springs will immediately reposition the mechanism to catch the firing pin upon release of the safety. Our invention in addition to the above will enable the user to release, lift, and rotate the bolt while the safety is in the "Safe" position, thus preventing the fire-arm from - 3a -,~ sp: `
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accidentally being discharged. The three-stage safety device while in the "Safe" position with the bolt assembly, trigger, and sear locked can be depressed (Position No. 2~, thus releasing the bolt assembly to be rotated, lifted, and/or removed as desired. A further novelty and safety feature of this invention is the inability of safety lever to accidentally be moved forward to the "Fire" position (Position No. 3) while being depressed for the purposes of lifting the bolt handle, rotating or removing the bolt assembly.
The need for the safety improvements and mechanism enhancements provided by this invention is the result of product liability claims that have occurred from accidents and personal injuries resulting from firearms equipped with the older safety mechanisms that require release of the trigger or sear mechanism, or the safety lever in the "Fire"
position to rotate and open the bolt assembly from the firearm's breech, or recent two-stage safety mechanisms that do not lock the bolt in either the "Safe" or "Fire" position in order to remove loaded cartridges from the chamber and/or magazine on certain designs. This invention can be adapted to many existing firearms with either the older or recent two stage top or side safety trigger blockage or sear blockage safety devices, thus enhancing their handling safety, in addition to future manufac-tured conventional firearm triggers, and custom mechanisms employing trigger block or sear safety device, including side, cross bolt, and tang type trigger safety mechanism.
Description of Drawinqs The exact nature of the invention as well as other objects and advantages thereof will become clearly apparent ~rn/
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from consideration of the specification referring to the accompanying drawings in which:
Figure 1 is a vertical longitudinal sectional view of a portion of firearm assembly, depicting the interface between the stock, action, bolt assembly, trigger, trigger housing, and safety mechanism.
Figure 2 is a top view of the integrated safety and trigger mechanism.
Figure 3 is a right side view illustration of the integrated trigger and safety mechanism.
Figure 4 is a front view of the integrated trigger and safety mechanism.
Figure 5 is a vertical longitudinal section (right side view) depicting the integrated internal trigger and safety component.
Detailed Desi~n Description Typical safeties for trigger mechanisms are a mechanical means to lock or blocX the sear and/or trigger in a "Safe" position which will prevent the firearm from firing.
This movement typically blocks and/or locks the bolt handle, thus preventing it from being lifted or rotated, maneuvres that are typically required to unload cartridges, remove bolt assembly, et al. These features and acts are typically desired to enhance the use, handling, safety, and storage of the firearms.
Bv referring and cross referencing to the drawings, that portion of the firearm bolt release three-position or three-stage trigger safety mechanism may be seen which is illustrated to assist those skilled in the art to develop an in-depth understanding of the design and the integral interaction between the components.
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Figure 1 is a vertical longitudinal integrated section view of a conventional firearm action. A typical view of a trigger mechanism is Figures 1 and 3 which depict the relationship of the safety mechanism with the external Trig~er Housing 1. The attachment to the Trigger Housin~ is by a cross Assembly Pin 2 having three different diameters, held to the housing by means of a "C" Clip 8.
Figures 2, 3, and ~ are top, right side and front views o~ the integrated trigger and safety mechanism. By reference to Figures 1, 2, 3, 4, and 5, one skilled in the art can readily distinguish the integral functions and features of this invention from the following description.
The Trigger Housing 1 function is to serve as a mountiny frame for the safety and trigger components controls. It serves as a pivot for the sear triyger mounting through the trigger housing and firearms action.
The Assembly Pin 2 is a three dimensional pin that aligns and attaches the safety mechanism to the trigger.
The Ball Detent Spring 3 functions to apply pressure to the ball which allows for forward or aft limits on the movement of the safety mechanism.
The Bolt Lock ~ functions to lock or unlock the bolt assembly.
The safety ~nner Arm 5 i5 a surface that contacts and actually lifts the Sear 9.
The Safety Lever 6 when in the rear position engages the Sear 9, wlth the Safety Inner Arm 5, and causes the Ball Detent Spring 3, to function.
rrhe Safety Lever ~eturn Spring 7 returns the Bolt Lock ~ to original or "Safe" bolt locked position.
The Assembly Pin "C" Clip 8 purpose is to retain the rn/
Safety Assembly to the Trigger Housing 1.
The sear ~ holds the firing pin until release is actuated by depressing the trigger.
The Transfer Pin ~O is an integral part of the safety Lever 7, enyages into an eccentric hole in the Block Lock 4, and provides downward rotation of Bolt Lock 4, when the Safety Lever 6 is positioned in the 'ISafe'' direction.
When the Safety Lever 6 is depressed in the "Safe" position, this action results in the release or unlocking of the bol-t assembly, allowing it to be lifted, rotated, and/or removed from the action as may be desired.
In conclusion, there has been shown a fire control means for a firearm having a trigger housing and a sear. The trigger housing is equipped with a three-position or three~
stage safety assembly which allows the breech bolt assembly to be released, lifted, rotated, and/or removed while the safety lever is in the "Safe" or No Fire position, simply by depressing the safety lever. The safety lever cannot be inadvertently moved to "Fire" or OFF position while depressed to release bolt assembly.
Although a single specific embodiment has been described and illustrated in detail, it should be understood that the invention is not to be considered limited to the exact embodiment disclosed. It is :intended that all modifications and equivalents falling with the terms of the appended claims shall be considered as part of the invention.
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BOLT REL~ASE ~RIGGER SAFETY MECHANISM FOR FIREA~MS
Field of the Invention This invention relates to firearms and has particular reference to means for controlling the firing, handling, and related safety thereof.
Backqround Discussion Many modern day sporting and military firearms employ a breech closing bolt which has a reciprocating movement in opening and closing the breech and which may be locked in the closed position by any applicable suitable method.
Historically, firearm safeties have functions under one or two basic concepts, e.g. (1) blockage of the firing pin striker assembly, or (2) blockage of the trigger or sear on trigger mechanism safeties.
A suitable fire control for most firearms provides for a readily operable means for locking the firing pin positively in a "Safe" position, as well as a trigger controlled sear to permit the instant release of the firing pin when it is desired to fire or discharye the projectile from the weapon. ~o this end it has been found to be essential that the safety device be so arranged than an inadvertent operation of the trigger while the safety is in "Safe" position will not condition the firearm to fire upon the release of the saeety. It has also heen further determined that a safety device should be capable of being actuated to allow release and rotation of the breech bolt assembly while in the "Safe" position where the sear or trigger mechanism is locked, preventing the firearm from firing, so that such firearm might be rendered free of its ~ ~rn/
cartridges and/or the removal of the bolt assembly from the action, thus further enhancing the handling and storage safety of the firearm.
It ls contemplated that these objects may be best atta:Lned by mounting on the receiver a trigger housing having two members which prevent movement of the firing pin. One of the members may be conven-iently identified as a safety inner arm and the other the sear. A
safety lever is arranged to move the safety and the imler arm to pro-hibit sear movement arranged to prevent movement of the sear. Control-ling the movement of the sear through these members enables the firing pin to operate.
Summary of Invention Generally speaking, the present invention may be considered as providing a safety mechanism for a firearm having a bolt including a slidable firing pin, a trigger housing, and a sear movably mounted to the trigger housing for controlling the firing of the firing pin, the safety mechanism comprising: a safety pivotally mounted to the trigger housing for rotation about a pivot pin by means of manually induced pivotal movement of a lever arm portion of the safety between a "safe" position, in which a bolt lock arm portion of the safety is brought into bolt movement blocking position and an inner arm portion of the safety is brought into sear movement bl.ocklng posltlon, and a "fire" positlon, in which movement of the bolt and sear are unobstructecl by the safety; and means, responslve to translatlonal movement of the lever arm portlon while the safety is in the "safe" positlon, to tem-porarily back the bolt lock arm portion out of the bolt movement blocklng position while the inner arm portion remains in the sear move ment blocking position, whereby the bolt can be withdrawn without pivoting the safety toward the "fire" position.
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This invention thereEore provides a fire control device having a three-position or three-stage safety which operates by positively moving the firing pin rearwardly out of contact with the trigger assembly and there releasably retaining it. In this way, should the trigger be operated while the safety is engaged, the trig-ger and sear springs will immediately reposition the mechanism to catch the firing pin upon release of the safety. Our invention in addition to the above will enable the user to release, lift, and rotate the bolt while the safety is in the "Safe" position, thus preventing the fire-arm from - 3a -,~ sp: `
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accidentally being discharged. The three-stage safety device while in the "Safe" position with the bolt assembly, trigger, and sear locked can be depressed (Position No. 2~, thus releasing the bolt assembly to be rotated, lifted, and/or removed as desired. A further novelty and safety feature of this invention is the inability of safety lever to accidentally be moved forward to the "Fire" position (Position No. 3) while being depressed for the purposes of lifting the bolt handle, rotating or removing the bolt assembly.
The need for the safety improvements and mechanism enhancements provided by this invention is the result of product liability claims that have occurred from accidents and personal injuries resulting from firearms equipped with the older safety mechanisms that require release of the trigger or sear mechanism, or the safety lever in the "Fire"
position to rotate and open the bolt assembly from the firearm's breech, or recent two-stage safety mechanisms that do not lock the bolt in either the "Safe" or "Fire" position in order to remove loaded cartridges from the chamber and/or magazine on certain designs. This invention can be adapted to many existing firearms with either the older or recent two stage top or side safety trigger blockage or sear blockage safety devices, thus enhancing their handling safety, in addition to future manufac-tured conventional firearm triggers, and custom mechanisms employing trigger block or sear safety device, including side, cross bolt, and tang type trigger safety mechanism.
Description of Drawinqs The exact nature of the invention as well as other objects and advantages thereof will become clearly apparent ~rn/
~L~f~
from consideration of the specification referring to the accompanying drawings in which:
Figure 1 is a vertical longitudinal sectional view of a portion of firearm assembly, depicting the interface between the stock, action, bolt assembly, trigger, trigger housing, and safety mechanism.
Figure 2 is a top view of the integrated safety and trigger mechanism.
Figure 3 is a right side view illustration of the integrated trigger and safety mechanism.
Figure 4 is a front view of the integrated trigger and safety mechanism.
Figure 5 is a vertical longitudinal section (right side view) depicting the integrated internal trigger and safety component.
Detailed Desi~n Description Typical safeties for trigger mechanisms are a mechanical means to lock or blocX the sear and/or trigger in a "Safe" position which will prevent the firearm from firing.
This movement typically blocks and/or locks the bolt handle, thus preventing it from being lifted or rotated, maneuvres that are typically required to unload cartridges, remove bolt assembly, et al. These features and acts are typically desired to enhance the use, handling, safety, and storage of the firearms.
Bv referring and cross referencing to the drawings, that portion of the firearm bolt release three-position or three-stage trigger safety mechanism may be seen which is illustrated to assist those skilled in the art to develop an in-depth understanding of the design and the integral interaction between the components.
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Figure 1 is a vertical longitudinal integrated section view of a conventional firearm action. A typical view of a trigger mechanism is Figures 1 and 3 which depict the relationship of the safety mechanism with the external Trig~er Housing 1. The attachment to the Trigger Housin~ is by a cross Assembly Pin 2 having three different diameters, held to the housing by means of a "C" Clip 8.
Figures 2, 3, and ~ are top, right side and front views o~ the integrated trigger and safety mechanism. By reference to Figures 1, 2, 3, 4, and 5, one skilled in the art can readily distinguish the integral functions and features of this invention from the following description.
The Trigger Housing 1 function is to serve as a mountiny frame for the safety and trigger components controls. It serves as a pivot for the sear triyger mounting through the trigger housing and firearms action.
The Assembly Pin 2 is a three dimensional pin that aligns and attaches the safety mechanism to the trigger.
The Ball Detent Spring 3 functions to apply pressure to the ball which allows for forward or aft limits on the movement of the safety mechanism.
The Bolt Lock ~ functions to lock or unlock the bolt assembly.
The safety ~nner Arm 5 i5 a surface that contacts and actually lifts the Sear 9.
The Safety Lever 6 when in the rear position engages the Sear 9, wlth the Safety Inner Arm 5, and causes the Ball Detent Spring 3, to function.
rrhe Safety Lever ~eturn Spring 7 returns the Bolt Lock ~ to original or "Safe" bolt locked position.
The Assembly Pin "C" Clip 8 purpose is to retain the rn/
Safety Assembly to the Trigger Housing 1.
The sear ~ holds the firing pin until release is actuated by depressing the trigger.
The Transfer Pin ~O is an integral part of the safety Lever 7, enyages into an eccentric hole in the Block Lock 4, and provides downward rotation of Bolt Lock 4, when the Safety Lever 6 is positioned in the 'ISafe'' direction.
When the Safety Lever 6 is depressed in the "Safe" position, this action results in the release or unlocking of the bol-t assembly, allowing it to be lifted, rotated, and/or removed from the action as may be desired.
In conclusion, there has been shown a fire control means for a firearm having a trigger housing and a sear. The trigger housing is equipped with a three-position or three~
stage safety assembly which allows the breech bolt assembly to be released, lifted, rotated, and/or removed while the safety lever is in the "Safe" or No Fire position, simply by depressing the safety lever. The safety lever cannot be inadvertently moved to "Fire" or OFF position while depressed to release bolt assembly.
Although a single specific embodiment has been described and illustrated in detail, it should be understood that the invention is not to be considered limited to the exact embodiment disclosed. It is :intended that all modifications and equivalents falling with the terms of the appended claims shall be considered as part of the invention.
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Claims (19)
1. A safety mechanism for a rifle having a bolt, a sear, a slidable firing pin, and a trigger housing, said mechanism comprising:
a safety lever;
a bolt arm lock;
a safety arm;
said safety lever being pivotally mounted onto said trigger housing for effecting rotation about a pivot member, said safety lever having a slot for effecting linear movement through said pivot member, said slot including a resilient force means;
said safety arm being directly engageable with said safety lever and pivotally mounted about the same axis thereof;
said bolt arm lock being directly engageable with said safety lever and pivotably mounted about the same axis thereof;
said safety lever being pivoted to a first position causing said bolt arm lock to engage the bolt for preventing the bolt from being rotated, said safety arm engaging the sear for preventing the firing pin from sliding;
said safety lever being depressed to a second position from said first position, said motion effecting a corresponding rotational movement in said bolt arm lock for releasing said bolt arm lock from the bolt, wherein said resilient force means urges said safety lever to said first position upon release of said safety lever; and said safety lever being pivoted to a third position from said first position causing said bolt arm lock to disengage the bolt for allowing the bolt to rotate, said safety arm disengaging the sear for allowing the firing pin to slide forward.
a safety lever;
a bolt arm lock;
a safety arm;
said safety lever being pivotally mounted onto said trigger housing for effecting rotation about a pivot member, said safety lever having a slot for effecting linear movement through said pivot member, said slot including a resilient force means;
said safety arm being directly engageable with said safety lever and pivotally mounted about the same axis thereof;
said bolt arm lock being directly engageable with said safety lever and pivotably mounted about the same axis thereof;
said safety lever being pivoted to a first position causing said bolt arm lock to engage the bolt for preventing the bolt from being rotated, said safety arm engaging the sear for preventing the firing pin from sliding;
said safety lever being depressed to a second position from said first position, said motion effecting a corresponding rotational movement in said bolt arm lock for releasing said bolt arm lock from the bolt, wherein said resilient force means urges said safety lever to said first position upon release of said safety lever; and said safety lever being pivoted to a third position from said first position causing said bolt arm lock to disengage the bolt for allowing the bolt to rotate, said safety arm disengaging the sear for allowing the firing pin to slide forward.
2. The safety mechanism of claim 2, wherein said safety mechanism includes:
a spring loaded ball being mounted on said safety arm and confined to move with said safety arm, a leaf spring bearing against said ball urging it into engagement with said trigger housing, said trigger housing having a first slot corresponding to said first position and a second slot corresponding to said third position, wherein said leaf spring urges said ball into either one of said slots for retaining said safety mechanism in either of said corresponding position.
a spring loaded ball being mounted on said safety arm and confined to move with said safety arm, a leaf spring bearing against said ball urging it into engagement with said trigger housing, said trigger housing having a first slot corresponding to said first position and a second slot corresponding to said third position, wherein said leaf spring urges said ball into either one of said slots for retaining said safety mechanism in either of said corresponding position.
3. The safety mechanism of claim 2, wherein said resilient force member is a spring.
4. A safety mechanism for a firearm having a bolt including a slidable firing pin, a trigger housing, and a sear movably mounted to said trigger housing for controlling the firing of said firing pin, said safety mechanism comprising:
a safety pivotally mounted to said trigger housing for rotation about a pivot pin by means of manually induced pivotal movement of a lever arm portion of said safety between a "safe" position, in which a bolt lock arm portion of said safety is brought into bolt move-ment blocking position and an inner arm portion of said safety is brought into sear movement blocking position, and a "fire" position, in which movement of said bolt and sear are unobstructed by said safety;
and means, responsive to translational movement of said lever arm por-tion while said safety is in said "safe" position, to temporarily back said bolt loch arm portion out of said bolt movement blocking position while said inner arm portion remains in said sear movement blocking position, whereby said bolt can be withdrawn without pivoting said safety toward said "fire" position.
a safety pivotally mounted to said trigger housing for rotation about a pivot pin by means of manually induced pivotal movement of a lever arm portion of said safety between a "safe" position, in which a bolt lock arm portion of said safety is brought into bolt move-ment blocking position and an inner arm portion of said safety is brought into sear movement blocking position, and a "fire" position, in which movement of said bolt and sear are unobstructed by said safety;
and means, responsive to translational movement of said lever arm por-tion while said safety is in said "safe" position, to temporarily back said bolt loch arm portion out of said bolt movement blocking position while said inner arm portion remains in said sear movement blocking position, whereby said bolt can be withdrawn without pivoting said safety toward said "fire" position.
5. A safety mechanism for a firearm having a bolt including a firing pin, a trigger housing, and a sear movably mounted to said trigger housing for controlling the firing of said firing pin, said safety mechanism comprising:
a bolt lock;
a safety lever;
a sear safety; and means mounting said bolt lock, safety lever and sear safety cooperatively to each other and to said trigger housing for simultan-eously moving said bolt lock to a bolt movement blocking position and said sear safety to a sear movement blocking position in response to movement of said safety lever from a first to a second position, and for moving said bolt lock out of said bolt blocking position without moving said sear safety out of said sear movement blocking position in response to movement of said safety lever from said second to a third position.
a bolt lock;
a safety lever;
a sear safety; and means mounting said bolt lock, safety lever and sear safety cooperatively to each other and to said trigger housing for simultan-eously moving said bolt lock to a bolt movement blocking position and said sear safety to a sear movement blocking position in response to movement of said safety lever from a first to a second position, and for moving said bolt lock out of said bolt blocking position without moving said sear safety out of said sear movement blocking position in response to movement of said safety lever from said second to a third position.
6. A safety mechanism as in Claim 5, further comprising resilient force means urging said lever into said second position from said third position.
7. A safety mechanism as in Claim 6, wherein said resilient force member is a spring.
8. A safety mechanism as in Claim 6, further comprising a spring-loaded ball being mounted on said sear safety and confined to move with said sear safety, a leaf spring bearing against said ball urging it into engagement with said trigger housing, said trigger housing having a first slot corresponding to said first position and a second slot corresponding to said second position, wherein said lever spring urges said ball into said first slot for restraining said sear safety against rotation when said lever is in said first position, and into said second slot for restraining said sear safety against rotation when said lever is in said second and third positions.
9. A safety mechanism as in Claim 5, wherein said bolt lock, safety lever, sear safety and trigger housing have aligned apertures, and where said mounting means comprises an assembly pin extending through said apertures.
10. A safety mechanism as in Claim 9, wherein said mounting means further comprises means simultaneously pivoting said bolt lock and said sear safety about said assembly pin to their respective blocking positions in response to rotating of said lever about said assembly pin from said first to said second positions, and means for pivoting said bolt lock about said assembly pin out of said bolt blocking position in response to translational movement of said lever relative to said assembly pin from said second to said third positions.
11. A safety mechanism as in Claim 10, wherein said lever comprises an elongated element, and wherein said means for pivoting said bolt lock in response to lever translational movement comprises means for pivoting said bolt lock in response to axially depressing said lever.
12. A safety mechanism as in Claim 11, wherein said mounting means further comprises means mounting said safety lever between said bolt lock and said sear safety.
13. A safety mechanism as in Claim 12, wherein said bolt lock has a body portion through which said assembly pin passes and a bolt locking arm portion which has an eccentric opening thereon; and said lever is formed with a longitudinally extending aperture through which said assembly pin extends and is also formed with a transversely extending portion including a projection which passes though said eccentric opening of said bolt lock.
14. A safety mechanism as in Claim 13, wherein said sear safety has a body portion formed with an elongated channel oriented coaxially with respect to said lever and into which said lever is snugly received for axial movement therein.
15. A safety mechanism for a firearm having a bolt including a firing pin, a trigger housing including oppositely disposed sidewalls, and a sear movably mounted to said trigger housing for controlling the firing of said firing pin, said safety mechanism comprising:
a sear safety having an inner, wrapped around portion which is located between said sidewalls and is configured with an eccentric end for rotation between sear blocking and unblocking positions, and further having a body portion located externally of said sidewalls which is formed with an outwardly facing elongated channel, said inner and body portions being formed with aligned apertures;
a safety lever located externally of said sear safety and comprising an elongated element having a manually manipulable upper end, and a blade-like lower end snugly and coaxially received within said sear safety channel, said blade-like end being formed with a longitudinally extending aperture and also formed with a forwardly extending portion including a projection;
a bolt lock located externally of said safety lever and having a body portion formed with an aperture, said bolt lock also having an elongated arm portion formed with an eccentric opening receiving said projection of said lever and extending upwardly and forwardly from said body portion for rotation between bolt blocking and unblocking positions; and an assembly pin extending through said apertures of said sear safety, lever and bolt lock and pivotally mounting the same to said trigger housing, so that pivotal movement of said upper end of said lever from a first position to a second position about said assembly pin will simultaneously rotate said eccentric end from said sear unblocking to said sear blocking position and rotate said arm portion from said bolt unblocking to said bolt blocking position, and so that downward axial movement of said upper end of said lever from said second position to a third position will maintain said eccentric end in said sear blocking position but rotate said arm portion out of said bolt blocking position.
a sear safety having an inner, wrapped around portion which is located between said sidewalls and is configured with an eccentric end for rotation between sear blocking and unblocking positions, and further having a body portion located externally of said sidewalls which is formed with an outwardly facing elongated channel, said inner and body portions being formed with aligned apertures;
a safety lever located externally of said sear safety and comprising an elongated element having a manually manipulable upper end, and a blade-like lower end snugly and coaxially received within said sear safety channel, said blade-like end being formed with a longitudinally extending aperture and also formed with a forwardly extending portion including a projection;
a bolt lock located externally of said safety lever and having a body portion formed with an aperture, said bolt lock also having an elongated arm portion formed with an eccentric opening receiving said projection of said lever and extending upwardly and forwardly from said body portion for rotation between bolt blocking and unblocking positions; and an assembly pin extending through said apertures of said sear safety, lever and bolt lock and pivotally mounting the same to said trigger housing, so that pivotal movement of said upper end of said lever from a first position to a second position about said assembly pin will simultaneously rotate said eccentric end from said sear unblocking to said sear blocking position and rotate said arm portion from said bolt unblocking to said bolt blocking position, and so that downward axial movement of said upper end of said lever from said second position to a third position will maintain said eccentric end in said sear blocking position but rotate said arm portion out of said bolt blocking position.
16. A safety mechanism as in Claim 15, further comprising spring means biasing said upper end of said lever into said second position from said third position.
17. A safety mechanism as in Claim 16, further comprising means for restraining said sear safety against rotation when said lever upper end is moved between said second and third positions.
18. A safety mechanism as in Claim 17, wherein said sear safety lies adjacent to one sidewall of said trigger housing, and said restraining means comprises said one sidewall having a slot, a ball confined to travel with said sear safety body portion, and a leaf spring mounted on said body portion and urging said ball into engagement with said slot when said lever upper end is moved between said second and third positions.
19. A safety mechanism for a rifle having a bolt, a sear, a slidable firing pin, and a trigger housing, said mechanism comprising:
a safety lever;
a bolt arm lock;
a safety arm;
said safety lever being movably mounted onto said trigger housing;
Claim 19 cont'd...
said safety arm being engaged and movable with said safety lever;
said bolt arm lock being engaged and movable with said safety lever;
said safety lever being movable to a first position causing said bolt arm lock to engage the bolt for preventing the bolt from being rotated, and while said safety arm engages the sear for preventing the firing pin from sliding;
said safety lever being movable to a second position from said first position, said motion to said second position effecting a corresponding movement of said bolt arm lock for releasing said bolt arm lock from the bolt to thereby permit said bolt to be operated or removed while said sliding of said fire pin remains prevented by said safety arm;
and said safety lever being movable to a third position from said first position causing said bolt arm lock to disengage the bolt for allowing the bolt to rotate, and while said safety arm disengages the sear for allowing the firing pin to slide forward.
a safety lever;
a bolt arm lock;
a safety arm;
said safety lever being movably mounted onto said trigger housing;
Claim 19 cont'd...
said safety arm being engaged and movable with said safety lever;
said bolt arm lock being engaged and movable with said safety lever;
said safety lever being movable to a first position causing said bolt arm lock to engage the bolt for preventing the bolt from being rotated, and while said safety arm engages the sear for preventing the firing pin from sliding;
said safety lever being movable to a second position from said first position, said motion to said second position effecting a corresponding movement of said bolt arm lock for releasing said bolt arm lock from the bolt to thereby permit said bolt to be operated or removed while said sliding of said fire pin remains prevented by said safety arm;
and said safety lever being movable to a third position from said first position causing said bolt arm lock to disengage the bolt for allowing the bolt to rotate, and while said safety arm disengages the sear for allowing the firing pin to slide forward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000561148A CA1295159C (en) | 1988-03-10 | 1988-03-10 | Bolt release trigger safety mechanism for firearms |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000561148A CA1295159C (en) | 1988-03-10 | 1988-03-10 | Bolt release trigger safety mechanism for firearms |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1295159C true CA1295159C (en) | 1992-02-04 |
Family
ID=4137620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000561148A Expired - Lifetime CA1295159C (en) | 1988-03-10 | 1988-03-10 | Bolt release trigger safety mechanism for firearms |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1295159C (en) |
-
1988
- 1988-03-10 CA CA000561148A patent/CA1295159C/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKLA | Lapsed |