CA1095303A - Hand-held breech-loading firearm - Google Patents
Hand-held breech-loading firearmInfo
- Publication number
- CA1095303A CA1095303A CA348,808A CA348808A CA1095303A CA 1095303 A CA1095303 A CA 1095303A CA 348808 A CA348808 A CA 348808A CA 1095303 A CA1095303 A CA 1095303A
- Authority
- CA
- Canada
- Prior art keywords
- casing
- lever
- recess
- firing
- breech block
- 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
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- Portable Nailing Machines And Staplers (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A firearm has a casing defining a recess, the recess being in part defined by a pair of upper spaced bridge members extending between front and rear portions of the casing, A lateral opening below the bridge members opens into the recess, and a breech block is mounted in the recess for pivotal movement toward and away from the lateral opening, the breech block being supported against rearward movement by the rear portion of the casing. A cartridge chamber opens in a direction toward the recess, and a trigger mechanism for operating means to fire a cartridge is located beneath the cartridge chamber.
A firearm has a casing defining a recess, the recess being in part defined by a pair of upper spaced bridge members extending between front and rear portions of the casing, A lateral opening below the bridge members opens into the recess, and a breech block is mounted in the recess for pivotal movement toward and away from the lateral opening, the breech block being supported against rearward movement by the rear portion of the casing. A cartridge chamber opens in a direction toward the recess, and a trigger mechanism for operating means to fire a cartridge is located beneath the cartridge chamber.
Description
~0~ 33 This invention relates -to l~and-held firearms, ~speci-ally sporting or hunting guns or bullet-firing rifles Hand-held or small Eirearms are kno~7n, which are fitted with a so-called breech block. Such a breech block requires a relatively large amount of space in the lock casing, so that the lock casing is relatively open towards the back, This limits the strent~th of the casing, and its resistance to the stress caused by the firing of a cartridge. This leads to a situation in which a weapon, e.g. a sporting rifle is suitable only for cartridges of a restricted calibre. In the case of sporting rifles, however, cartridge chambers are desirable from which large calibre cart-ridges may be fired.
An object of the present invention is to provide a hand-held firearm, especially a sporting or hunting gun, such as a bullet-fir-ng rifle, which is suitable especially for large-calibre cartridges, and in which the lock mechanism is of great simplicity and therefore of great reliability.
According to the present invention, a firearm comprises a casing defining a recess, said recess being in part defined by a nair of upper spaced bridge members extending between front and rear portions of the casing, a lateral opening below said brldge members opening into said recess, a breech block, means mounting said breech block in said recess for pivotal movement toward and away from said lateral opening, said breech block being supported against rearward moveme~-nt by the rear portion of the casing, a cartridge chamber opening in a direction toward said recess, means for firing a cart-ridge located in said cartridge chamber, and a trigger mechanism for operating said firing means, said trigger mechanism being located beneath said cartridge chamber.
An object of the present invention is to provide a hand-held firearm, especially a sporting or hunting gun, such as a bullet-fir-ng rifle, which is suitable especially for large-calibre cartridges, and in which the lock mechanism is of great simplicity and therefore of great reliability.
According to the present invention, a firearm comprises a casing defining a recess, said recess being in part defined by a nair of upper spaced bridge members extending between front and rear portions of the casing, a lateral opening below said brldge members opening into said recess, a breech block, means mounting said breech block in said recess for pivotal movement toward and away from said lateral opening, said breech block being supported against rearward moveme~-nt by the rear portion of the casing, a cartridge chamber opening in a direction toward said recess, means for firing a cart-ridge located in said cartridge chamber, and a trigger mechanism for operating said firing means, said trigger mechanism being located beneath said cartridge chamber.
- 2 -v6~ j-'4 ~6~9S3~3 Such a design of the lock mechanism results in a flrearm which is suitable not only Eor Eiring large-calibre cartridges, but results in an overall compact form, and the weapon can be made considerably shorter than hitherto/ while retaining the conventional length of barrel In this way, improved handling of the weapon may be achieved. Because of the -Eact that there are located in the lock casing bridge members which are continuous from the forward portion of said casing as far as the portion behind the breech block, the breech block itself is housed in an extremely rigid and compact casing.
It is therefore capable directly of absorbing extremely high forces, such as occur upon firing of a cartridge.
The bridge members impart to the lock casing a high degree of stability. The lock mechanism at the same time is ;~
rendered very compact by reason of the fact that the barrel is extended right to the back, so that, when the lock ;~
mechanism is viewed from the side, the barrel terminates behind the trigger. This means that the trigger mechanism, seen from the side, lies in front of the rear end of the barrel. This leads to shortening of the overall length of the weapon, so that it may be more easily and safely handled.
According to a further feature of the invention, the
It is therefore capable directly of absorbing extremely high forces, such as occur upon firing of a cartridge.
The bridge members impart to the lock casing a high degree of stability. The lock mechanism at the same time is ;~
rendered very compact by reason of the fact that the barrel is extended right to the back, so that, when the lock ;~
mechanism is viewed from the side, the barrel terminates behind the trigger. This means that the trigger mechanism, seen from the side, lies in front of the rear end of the barrel. This leads to shortening of the overall length of the weapon, so that it may be more easily and safely handled.
According to a further feature of the invention, the
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i3~3 pivot block is mounted to pivo-t around a spindle adjacent its lower end. In this case, the block may embrace the spindle by means of an externally-open slot; a snap closure device, e.g. a spring-locking mechanism, being provided at least at one side of said open slot, and extending below the axis of the spindle. This enables the pivot block to be withdrawn from the recess in the lock casing,- whilst providing a satisfactory pivotal support. This secures the weapon against unintentional or accidental use by third parties in a very simple and effective way. When the pivot block is removedJ the weapon cannot be made ready to fire. This also provides protection against theft or the like.
Advantageously, said spindle for the pivot hlock .is designed as a tube or sleeve7 which houses the striker pin.
Thus, the striker pin may have at its traillng end an extension provided with an adjustable stop which interacts with a spring-loaded cocking lever whose handle is directed towards the front of the tYeapon. The striker pin can thus be cocked by turning the cocking lever in the direction of the butt of the weapon, so that this can be done safely.
The cocking lever further enables favourable leverage to be obtained.
The limit positions of the pivot block may be defined by a snap~action catch. For this purpose, a spring-biased .
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snap bolt may be located in the pivot block be-tween its pivotal axis and the firing pin, Ejector mechanism may have an ejector part for grlpping behind a cartridge rim, and designed as a slide or pusher member, upon which a spring-loaded bolt act:s Said pusher member may be provided with a guide parallel thereto, so that it may be moved in a direction plano-parallel to itselE.
When the pivot block is swung out or opened, movement of the pusher member, and thus, ejection of the cartridge is enabled, by the fact that, on a face of the pivot block facing the ejector slide, there is provided a recess adapted to the contour of said slide. As soon as the pivot block adopts its open position, the ejecting movement of the pusher member is automatically initiated. The pusher member can then slip into the corresponding recess in the block. In this way, the block is secured in its open position. When a ~-new cartridge is inserted into the chamber of the barrel, the pusher member is pressed back into the ready position against the action of its spring.
The trigger lever, which is located directly underneath the firing pin, may have on its face facing the striker pin, a pivotally mounted intermediate lever. A pressure point position of the trigger lever is obtained by the fact that there is provided between the intermediate lever and the - 5 - ;
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53~;3 trigger lever a groove, which is preferabl~ provided on the trigger lever itself. When the -trigger ]ever is pivoted, it thus has a degree of play before it acts on the intermedlate lever, whereupon the pressure point is marked, The degree of play may be adjusted. This i9 easily achieved by the location in the trigger lever of an adjustable set screw, which can project to a greater or lesser degree into the said groove.
Embodiments of the invention will now be described, by wa~ of example, with reEerence to the accompanying diagrammatic drawinys, in which:-Fig, 1 is a fragmentary longitudinal sectional view of a sporting gun in the form of a bullet-firing rifle according to the present invention, showing mainly the lock mechanism thereof;
FigO 2 is a section on the line II-II of ~ig. 1, showing the pivot block closed; `~
Fig. 3 is a section on the line II~II of Fig, 1, showing the pivot block pivoted outwards; ;~
Fig. 4 is a section on the line IV-IV of Fig. 3;
Fig. 5 is a side elevation of the sporting rifle to a reduced scale, and Fig, 6 is a longitudinal sectional view of a match pistol having a pivot block according to the invention.
A small firearm 1 shown in Figs. 1 to 5 is a sporting - . ............ . . ~ . , ; , . ~ , -: .: . , .,, : :: , ::
~ln or ~ullct-firin6 rl~le havlng ~ barrol 2, ~ lock mccllanism 3, a stock 4, and R butt 5. Screwed to tlle lnn~r cnd o~ the barrel 2, in which a cartrid~e chamber is locatcd, there is a lock casing 7, in which the lock mocllallism 3 is substantially housed. The lock casing 7 ll~s n recess 8 open at th~ sid~ in wllich a pivot block 9 fol-millg a lock is pivotally mounted. Thle portion of the lock casin~ screwed to the barrel 2 is connected at its rear portion 7a by two bridge-like straps 10 and 11, so t~lat the pivot block 9 is supported by its rear surface by the rcar part o~ the lock casing. The pivot block 9 is provided with a handle 12, and can be pivoted around a projecting spindle 13, and by means of an externally-open slot 14 it embraces the spindle 13. On at least one side of the slot 14, there is a snap catch 15 mounted on the pivot block 9 and gripping the spindle 13. The catch 15 m~y conslst of a bolt 16 loaded by a sprlng 17. The ~olt 16 is so locatcd that it projects inwards beneath the axis of the spindle 13 into the open slot 14. When plvoted outuards 9 the block 9 may be removed from opening 8 in the direction of the longitudinal axis by pressing back the spring bolt lS.
This affords protection a~ainst unintentional use of the weapon by third parties.
The spindle 13 is desi~ned as a tube or a sleeve, in which a leading portion of the striker pin 18 is located.
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5~3 In the pivot block 9, there is a longitudinal groove 19, in which there is located a rocker arm 21 which is rockably mounted on a pin ~0. The rocker arm 21 abuts a -firing pin 22~ which is loaded by a spring 23, and is capable of acting on a cartridge 24. The striker pin 18 is loaded by a compression spring 25, within the sleeve 13, and has an extension 26J on whose end there is provicled an adjustable stop`27. Beneath the extension 26 there is a cocking lever 28 pivotally mounted on a transverse spindle 29, and which is operable against the action of a spring bolt 30, which is pivotally mounted pn the stock 4. The cocking lever 28 has at one end a handle 28a) projecting into an opening 31 in the stock 4. The arm 28b of the lever is designed as a fork, and interacts with the stop 27 on the extension 26 of the striker pin 18. The striking or ;~
leading end of the pin 18, in the uncocked position, can act upon the rocker arm 21.
The ejector mechanism has an extractor 32 engaging behind the edge or rim 24a of the cartridge 24 in the barrel. The extractor 32 is carried by a spring bolt 33 which is under the action of a spring 34. The extractor 32 is guided by means of a pin 35 in a bore 36 of the barrel 2, for movement parallel thereto. In the pivot block 9 there -is a recess 37, corresponding to the contour of extractor 32, and in which the extractor 32 engages ....
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5;~3 automatically under the prcssure of tlle spring 34, as soon as the block 9 is in its open position as shown in Fig. 3. The pivoting angle can be about 50 ~ I`hus, the cartridge 24 is partly withdrawn from the cartrid~e chamber so that, when the gun is held up, the cartridge can slip out of the cartridge chamber, or be removed by hand. When a new cartridge is inserted9 the extractor 32 - is pushed back into its original position, whereupon the block 9 can be pivoted back into the closed position. The-.10 limit positions of-the block 9 are effected.by snap engagement. For this purpose, there is a s~ring plunger 389 which interacts with notches 39 and 40.
The trigger lever 41 is mounted so as to be pivotable around a pin 42, and is under the influence of a spring bolt 43, the trigger lever 41 being located in a known way within a protective guard 44. On the side of the trigger lever 41 facing the striker pin 18, an intermediate lever 45 is pivotally mounted on a ~pin 46. The lever 45 can engage behind projecting stops 18a and 18b on the striker pin 18. Between the levers 45 and 419 there is a groove ~7~ permitting some play for the pressure-point position of the trigger lever 41. In the trigger lever 41 there is also a set-screw 48, which can project to a greater or lesser degree into the groove 47.. Thus, the degree of play before reaching the-pressure point of the trigger lever 41 . , .
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, 9~9S3~3 is to a greater or lesser extent limited. The trigger lever is :lockable by a sa~ety bolt 49, which may be turne~l in a known way between a safety p~sition to a .release position by means of a snap-action handle 50, Fig. 5.
At a suitable point, the striker pin may be provided with a transverse pin, ~Yhich projects laterally out o~ the stock o~ the weapon through a longitudinally extending slot. In this way, the position o~ the pin may be 'felt, indicating whether th~ striker pin 18 is cocked 10 - or not. In'the'case of a~sporting rifle~,~ this -is 'o~
considerable assistance whe'~ the weapon is used in the dark.
As Fig. 1 shows, the trigger device, cocking device ' `for the striker pin, and-the ejector mechanism are located beneath the cartridge chamber 6 of the barrel, i.e. th'e rear portion of the barrel with the cartridge chamber--extends, seen in side view, to a point behind the trigger.
In this way, the overall length of the weapon may be kept shorter than hitherto. About ten to twenty millimetres 2Q in overall length can be saved. The weapon is more compact and easier to handle. The entire lock mechanism is extremely compact, and is of only restricted length.
Th~ lock casing 7 is also-compact and stable, despite the opening-8 for the pivot;block-9.- The-remaining bridge-like straps 10 and 11 lend high strength and rigidity to 53~3 the rear portion of the loc~ casing. Th:is enables the weapon to be used for the largest possible calibre of cartridges, e.g. 475 Nitro-Express. The lock mechanism is compact ln structure, all the devices beincJ housed in a minimal space.
The weapon shown in Fig. 6 is a match pistol 52, having a substantially identical lock structure to that above described. A lock casing 53 is screwed on to the rear part of a barrel S4, and has a side opening 55, in which a pivot block 56 i5 located. It is mounted pivotably on a spindle 57, and has a firing pin 58. An extractor 59 of the ejector mechanism is under the ac-tion of a spring bolt 60. The opening 55 for the block 56 is defined at the top by bridge-like straps 61, forming an integral part with the rear part of the lock casing 53, The pistol is suitable for a large-calibre cartridge, e.g. 44 Remington Magnum cartridge.
A trigger lever 62 interacts via a catch 63 with a nosepiece 64 of a ~iring lever 65, which is pivotally 20 mounted at 66~ A spring 67 acts upon the firing lever 65, and acts by means of a part 68 upon a pin 69~ which is mounted eccentrically relative to the pivot axis 66. A
safety bolt is shown at 70, enabling locking of the catch 63 and thus of the trigger lever 62 In this embodiment also, the pivot block 56 is located . ~
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~5;3~3 in a rearwardly-closed cas:inc; portion, and can there~ore absorb considerable ~iring stresses.
The trigger mechanism is located subs-tantially below the cartridge chamber of barrel 54, and in thi.s example also the ove.ral:L length of the pistol is, thus, less than hitherto, The weapon is therefore easier to handle.
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i3~3 pivot block is mounted to pivo-t around a spindle adjacent its lower end. In this case, the block may embrace the spindle by means of an externally-open slot; a snap closure device, e.g. a spring-locking mechanism, being provided at least at one side of said open slot, and extending below the axis of the spindle. This enables the pivot block to be withdrawn from the recess in the lock casing,- whilst providing a satisfactory pivotal support. This secures the weapon against unintentional or accidental use by third parties in a very simple and effective way. When the pivot block is removedJ the weapon cannot be made ready to fire. This also provides protection against theft or the like.
Advantageously, said spindle for the pivot hlock .is designed as a tube or sleeve7 which houses the striker pin.
Thus, the striker pin may have at its traillng end an extension provided with an adjustable stop which interacts with a spring-loaded cocking lever whose handle is directed towards the front of the tYeapon. The striker pin can thus be cocked by turning the cocking lever in the direction of the butt of the weapon, so that this can be done safely.
The cocking lever further enables favourable leverage to be obtained.
The limit positions of the pivot block may be defined by a snap~action catch. For this purpose, a spring-biased .
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snap bolt may be located in the pivot block be-tween its pivotal axis and the firing pin, Ejector mechanism may have an ejector part for grlpping behind a cartridge rim, and designed as a slide or pusher member, upon which a spring-loaded bolt act:s Said pusher member may be provided with a guide parallel thereto, so that it may be moved in a direction plano-parallel to itselE.
When the pivot block is swung out or opened, movement of the pusher member, and thus, ejection of the cartridge is enabled, by the fact that, on a face of the pivot block facing the ejector slide, there is provided a recess adapted to the contour of said slide. As soon as the pivot block adopts its open position, the ejecting movement of the pusher member is automatically initiated. The pusher member can then slip into the corresponding recess in the block. In this way, the block is secured in its open position. When a ~-new cartridge is inserted into the chamber of the barrel, the pusher member is pressed back into the ready position against the action of its spring.
The trigger lever, which is located directly underneath the firing pin, may have on its face facing the striker pin, a pivotally mounted intermediate lever. A pressure point position of the trigger lever is obtained by the fact that there is provided between the intermediate lever and the - 5 - ;
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53~;3 trigger lever a groove, which is preferabl~ provided on the trigger lever itself. When the -trigger ]ever is pivoted, it thus has a degree of play before it acts on the intermedlate lever, whereupon the pressure point is marked, The degree of play may be adjusted. This i9 easily achieved by the location in the trigger lever of an adjustable set screw, which can project to a greater or lesser degree into the said groove.
Embodiments of the invention will now be described, by wa~ of example, with reEerence to the accompanying diagrammatic drawinys, in which:-Fig, 1 is a fragmentary longitudinal sectional view of a sporting gun in the form of a bullet-firing rifle according to the present invention, showing mainly the lock mechanism thereof;
FigO 2 is a section on the line II-II of ~ig. 1, showing the pivot block closed; `~
Fig. 3 is a section on the line II~II of Fig, 1, showing the pivot block pivoted outwards; ;~
Fig. 4 is a section on the line IV-IV of Fig. 3;
Fig. 5 is a side elevation of the sporting rifle to a reduced scale, and Fig, 6 is a longitudinal sectional view of a match pistol having a pivot block according to the invention.
A small firearm 1 shown in Figs. 1 to 5 is a sporting - . ............ . . ~ . , ; , . ~ , -: .: . , .,, : :: , ::
~ln or ~ullct-firin6 rl~le havlng ~ barrol 2, ~ lock mccllanism 3, a stock 4, and R butt 5. Screwed to tlle lnn~r cnd o~ the barrel 2, in which a cartrid~e chamber is locatcd, there is a lock casing 7, in which the lock mocllallism 3 is substantially housed. The lock casing 7 ll~s n recess 8 open at th~ sid~ in wllich a pivot block 9 fol-millg a lock is pivotally mounted. Thle portion of the lock casin~ screwed to the barrel 2 is connected at its rear portion 7a by two bridge-like straps 10 and 11, so t~lat the pivot block 9 is supported by its rear surface by the rcar part o~ the lock casing. The pivot block 9 is provided with a handle 12, and can be pivoted around a projecting spindle 13, and by means of an externally-open slot 14 it embraces the spindle 13. On at least one side of the slot 14, there is a snap catch 15 mounted on the pivot block 9 and gripping the spindle 13. The catch 15 m~y conslst of a bolt 16 loaded by a sprlng 17. The ~olt 16 is so locatcd that it projects inwards beneath the axis of the spindle 13 into the open slot 14. When plvoted outuards 9 the block 9 may be removed from opening 8 in the direction of the longitudinal axis by pressing back the spring bolt lS.
This affords protection a~ainst unintentional use of the weapon by third parties.
The spindle 13 is desi~ned as a tube or a sleeve, in which a leading portion of the striker pin 18 is located.
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5~3 In the pivot block 9, there is a longitudinal groove 19, in which there is located a rocker arm 21 which is rockably mounted on a pin ~0. The rocker arm 21 abuts a -firing pin 22~ which is loaded by a spring 23, and is capable of acting on a cartridge 24. The striker pin 18 is loaded by a compression spring 25, within the sleeve 13, and has an extension 26J on whose end there is provicled an adjustable stop`27. Beneath the extension 26 there is a cocking lever 28 pivotally mounted on a transverse spindle 29, and which is operable against the action of a spring bolt 30, which is pivotally mounted pn the stock 4. The cocking lever 28 has at one end a handle 28a) projecting into an opening 31 in the stock 4. The arm 28b of the lever is designed as a fork, and interacts with the stop 27 on the extension 26 of the striker pin 18. The striking or ;~
leading end of the pin 18, in the uncocked position, can act upon the rocker arm 21.
The ejector mechanism has an extractor 32 engaging behind the edge or rim 24a of the cartridge 24 in the barrel. The extractor 32 is carried by a spring bolt 33 which is under the action of a spring 34. The extractor 32 is guided by means of a pin 35 in a bore 36 of the barrel 2, for movement parallel thereto. In the pivot block 9 there -is a recess 37, corresponding to the contour of extractor 32, and in which the extractor 32 engages ....
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5;~3 automatically under the prcssure of tlle spring 34, as soon as the block 9 is in its open position as shown in Fig. 3. The pivoting angle can be about 50 ~ I`hus, the cartridge 24 is partly withdrawn from the cartrid~e chamber so that, when the gun is held up, the cartridge can slip out of the cartridge chamber, or be removed by hand. When a new cartridge is inserted9 the extractor 32 - is pushed back into its original position, whereupon the block 9 can be pivoted back into the closed position. The-.10 limit positions of-the block 9 are effected.by snap engagement. For this purpose, there is a s~ring plunger 389 which interacts with notches 39 and 40.
The trigger lever 41 is mounted so as to be pivotable around a pin 42, and is under the influence of a spring bolt 43, the trigger lever 41 being located in a known way within a protective guard 44. On the side of the trigger lever 41 facing the striker pin 18, an intermediate lever 45 is pivotally mounted on a ~pin 46. The lever 45 can engage behind projecting stops 18a and 18b on the striker pin 18. Between the levers 45 and 419 there is a groove ~7~ permitting some play for the pressure-point position of the trigger lever 41. In the trigger lever 41 there is also a set-screw 48, which can project to a greater or lesser degree into the groove 47.. Thus, the degree of play before reaching the-pressure point of the trigger lever 41 . , .
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, 9~9S3~3 is to a greater or lesser extent limited. The trigger lever is :lockable by a sa~ety bolt 49, which may be turne~l in a known way between a safety p~sition to a .release position by means of a snap-action handle 50, Fig. 5.
At a suitable point, the striker pin may be provided with a transverse pin, ~Yhich projects laterally out o~ the stock o~ the weapon through a longitudinally extending slot. In this way, the position o~ the pin may be 'felt, indicating whether th~ striker pin 18 is cocked 10 - or not. In'the'case of a~sporting rifle~,~ this -is 'o~
considerable assistance whe'~ the weapon is used in the dark.
As Fig. 1 shows, the trigger device, cocking device ' `for the striker pin, and-the ejector mechanism are located beneath the cartridge chamber 6 of the barrel, i.e. th'e rear portion of the barrel with the cartridge chamber--extends, seen in side view, to a point behind the trigger.
In this way, the overall length of the weapon may be kept shorter than hitherto. About ten to twenty millimetres 2Q in overall length can be saved. The weapon is more compact and easier to handle. The entire lock mechanism is extremely compact, and is of only restricted length.
Th~ lock casing 7 is also-compact and stable, despite the opening-8 for the pivot;block-9.- The-remaining bridge-like straps 10 and 11 lend high strength and rigidity to 53~3 the rear portion of the loc~ casing. Th:is enables the weapon to be used for the largest possible calibre of cartridges, e.g. 475 Nitro-Express. The lock mechanism is compact ln structure, all the devices beincJ housed in a minimal space.
The weapon shown in Fig. 6 is a match pistol 52, having a substantially identical lock structure to that above described. A lock casing 53 is screwed on to the rear part of a barrel S4, and has a side opening 55, in which a pivot block 56 i5 located. It is mounted pivotably on a spindle 57, and has a firing pin 58. An extractor 59 of the ejector mechanism is under the ac-tion of a spring bolt 60. The opening 55 for the block 56 is defined at the top by bridge-like straps 61, forming an integral part with the rear part of the lock casing 53, The pistol is suitable for a large-calibre cartridge, e.g. 44 Remington Magnum cartridge.
A trigger lever 62 interacts via a catch 63 with a nosepiece 64 of a ~iring lever 65, which is pivotally 20 mounted at 66~ A spring 67 acts upon the firing lever 65, and acts by means of a part 68 upon a pin 69~ which is mounted eccentrically relative to the pivot axis 66. A
safety bolt is shown at 70, enabling locking of the catch 63 and thus of the trigger lever 62 In this embodiment also, the pivot block 56 is located . ~
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~5;3~3 in a rearwardly-closed cas:inc; portion, and can there~ore absorb considerable ~iring stresses.
The trigger mechanism is located subs-tantially below the cartridge chamber of barrel 54, and in thi.s example also the ove.ral:L length of the pistol is, thus, less than hitherto, The weapon is therefore easier to handle.
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Claims (21)
1. A firearm comprising a casing defining a recess, said recess being in part defined by a pair of upper spaced bridge members extending between front and rear portions of the casing, a lateral opening below said bridge members opening into said recess, a breech block, means mounting said breech block in said recess for pivotal movement toward and away from said lateral opening, said breech block being supported against rearward movement by the rear portion of the casing, a cartridge chamber opening in a direction toward said recess, means for firing a cartridge located in said cartridge chamber, and a trigger mechanism for operating said firing means, said trigger mechanism being located beneath said cartridge chamber.
2. A firearm as defined in claim 1 wherein said pivotal mounting means includes a spindle projecting into said casing recess, said firing means is a firing pin slidably carried by said breech block, and spring means for normally biasing said firing pin in a direction away from said cartridge chamber.
3. A firearm as defined in claim 1 wherein said pivotal mounting means includes a tubular sleeve projecting into said casing recess, and said trigger mechanism includes a striker pin slidably mounted in said tubular sleeve.
4. A firearm as defined in claim 1 wherein said pivotal mounting means includes a spindle projecting into said casing recess, a slot in said breech block, said spindle being embra-cingly received by said slot, and releasable locking means for releasably lockingly retaining said spindle in said slot.
13 A firearm as defined in claim 1 including a generally upright groove in said casing opening in a direction toward said casing recess, said firing means includes a rocker arm housed in said upright groove, means mounting said rocker arm for pivotal movement relative to said groove, said firing means further including a firing pin slidably carried by said breech block, and an end portion of said rocker arm being in abutment with said firing pin.
6. A firearm as defined in claim 1 wherein said pivotal mounting means includes a spindle projecting into said casing recess, said firing means is a firing pin slidably carried by said breech block, and spring biased snap-action locking means carried by said breech block between said pivotal mounting means and said firing pin for locking said breech block in said casing recess.
7. A firearm as defined in claim 1 wherein ejector mechanism is located below said cartridge chamber, and said ejector mechanism includes an ejector pin, means mounting said ejector pin for sliding movement relative to said breech block, means carried by said ejector pin for engaging a cartridge rim, said cartridge rim engaging means having an outer peripheral surface, a recess in said casing opening in a direction toward said casing recess and being adapted for the receipt therein of said cartridge engaging means, said last-mentioned recess being of a configuration to generally matingly receive said cartridge rim engaging means, and means for guiding the movement of said cartridge rim engaging means during movement of the latter toward and away from said last-mentioned recess.
8. A firearm as defined in claim 1 wherein said trigger mechanism includes a striker pin slidably mounted in said casing, said striker pin includes a first terminal end portion adjacent said breech block and a second terminal end portion remote there-from, an adjustable stop carried by said second terminal end portion and being selectively adjustably movable therealong, a cocking lever, said cocking lever having terminal ends, and means mounting said cocking lever for pivotal movement such that a terminal end of said cocking lever bears against said adjust-able stop to move said striker pin in a direciton away from said breech block.
9. A firearm as defined in claim 1 wherein said trigger mechanism includes a striker pin slidably mounted in said casing, said striker pin includes a first terminal end portion adjacent said breech block and a second terminal end portion remote there-from, an adjustable stop carried by said second terminal end portion and being selectively adjustably movable therealong, a cocking lever, said cocking lever having terminal ends, means mounting said cocking lever for pivotal movement such that a terminal end of said cocking lever bears against said adjustable stop to move said striker pin in a direction away from said breech block, a trigger lever, means pivotally mounting said trigger lever relative to said casing, a lever intermediate said trigger lever and said striker pin, means pivotally mounting said intermediate lever relative to said casing, and a groove in a face of said trigger lever opening in a direction toward said intermediate lever defining a pressure-point position of said trigger lever.
10. A firearm as defined in claim 1 wherein said trigger mechanism includes a striker pin slidably mounted in said casing, said striker pin includes a first terminal end portion adjacent said breech block and a second terminal end portion remote there-from, an adjustable stop carried by said second terminal end portion and being selectively adjustably movable therealong, a cocking lever, said cocking lever having terminal ends, means mounting said cocking lever for pivotal movement such that a terminal end of said cocking lever bears against said adjustable stop to move said striker pin in a direction away from said breech block, a trigger lever, means pivotally mounting said trigger lever relative to said casing, a lever intermediate said trigger lever and said striker pin, means pivotally mounting said intermediate lever relative to said casing, a groove in a face of said trigger lever opening in a direction toward said intermediate lever defining a pressure-point position of said trigger lever, and a set screw threaded into a bore of said trigger lever, and said bore opens into said trigger lever groove.
11. A firearm as defined in claim 1 including lever means for cocking a striker pin of said trigger mechanism, and said cocking lever means is substantially entirely located beneath said cartridge chamber.
12. A firearm as defined in claim 1 wherein said pivotal mounting means includes a spindle projecting into said casing recess, said firing means is a firing pin slidably carried by said breech block, spring means for normally biasing said firing pin in a direction away from said cartridge chamber, a firing lever, said firing lever having opposite ends, means mounting said firing lever between its ends for pivotal movement relative to said casing, a first of said firing lever ends being adapted for contact against said firing pin, and means releasably coupling a second of said firing lever ends to a trigger lever pivotally connected to said casing.
13. A firearm as defined in claim 2 wherein said pivotal mounting means includes a tubular sleeve projecting into said casing recess, said trigger mechanism includes a striker pin slidably mounted in said tubular sleeve, said striker pin having first and second end portions, said first end portion being adjacent said breech block and said second end portion being remote therefrom, means for normally biasing said striker pin for movement in a direction toward said breech block, cocking lever means mounted for pivotal movement relative to said casing, adjustable stop means carried by said second end portion and being adapted for abutting contact with a portion of said cocking lever means whereby upon pivoting of the latter said striker pin is moved in a direction away from said breech block, a rocker arm having first and second ends, means mounting said rocker arm for pivotal movement relative to said casing, said rocker arm first and second arms being in alignment for contact against said striker pin first end portion and said firing pin, respectively, and ejector mechanism located below said cartridge chamber, said ejector mechanism including an ejector pin, means mounting said ejector pin for sliding move-ment relative to said breech block, means carried by said ejector pin for engaging a cartridge rim, said cartridge engaging means having an outer peripheral surface, a recess in said casing opening in a direction toward said casing recess and being adapted for the receipt therein of said cartridge rim engaging means, said last-mentioned recess being of a configuration to generally matingly receive said cartridge rim engaging means, and means for guiding the movement of said cartridge rim engaging means during movement of the latter toward and away from said last-mentioned recess.
14. A firearm as defined in claim 1 wherein said cartridge chamber is of a predetermined axial length, and the length of said recess as measured axially from said cartridge chamber is appreciably less than said predetermined axial length.
15. A firearm as defined in claim 14 including a gap defined between said bridge members, and a portion of said gap is in rearward alignment with said cartridge chamber.
16. A firearm as defined in claim 14 wherein said pivotal mounting means includes a spindle projecting into said casing recess, said firing means is a firing pin slidably carried by said breech block, and spring means for normally biasing said firing pin in a direction away from said cartridge chamber.
17. A firearm as defined in claim 15 wherein said pivotal mounting means includes a spindle projecting into said casing recess, said firing means is a firing pin slidably carried by said breech block, and spring means for normally biasing said firing pin in a direction away from said cartridge chamber.
18. A firearm as defined in claim 14 wherein said pivotal mounting means includes a tubular sleeve projecting into said casing recess, and said trigger mechanism includes a striker pin slidably mounted in said tubular sleeve.
19. A firearm as defined in claim 15 wherein said pivotal mounting means includes a tubular sleeve projecting into said casing recess, and said trigger mechanism includes a striker pin slidably mounted in said tubular sleeve.
20. A firearm as defined in claim 14 wherein said pivotal mounting means includes a spindle projecting into said casing recess, a slot in said breech block, said spindle being embracingly received by said slot, and releasable locking means for releasably lockingly retaining said spindle in said slot.
21. A firearm as defined in claim 15 including a generally upright groove in said casing opening in a direction toward said casing recess, said firing means includes a rocker arm housed in said upright groove, means mounting said rocker arm for pivotal movement relative to said groove, said firing means further including a firing pin slidably carried by said breech block, and an end portion of said rocker arm being in abutment with said firing pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA348,808A CA1095303A (en) | 1976-04-24 | 1980-03-27 | Hand-held breech-loading firearm |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP2617953.3 | 1976-04-24 | ||
| DE2617953A DE2617953C2 (en) | 1976-04-24 | 1976-04-24 | Handguns, especially hunting rifles |
| CA274,735A CA1082018A (en) | 1976-04-24 | 1977-03-25 | Hand-held breach-loading firearm |
| CA348,808A CA1095303A (en) | 1976-04-24 | 1980-03-27 | Hand-held breech-loading firearm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1095303A true CA1095303A (en) | 1981-02-10 |
Family
ID=27164990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA348,808A Expired CA1095303A (en) | 1976-04-24 | 1980-03-27 | Hand-held breech-loading firearm |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1095303A (en) |
-
1980
- 1980-03-27 CA CA348,808A patent/CA1095303A/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |