Straight pull bolt lock for repeating weapons and repeating weapon with the same
The straight-pull bolt action for repeating firearms uses bevel gears to convert continuous motion into rotational movements, addressing the complexity and safety issues of existing designs by integrating manual firing pin cocking, enhancing ease of use and reliability.
Patent Information
- Application Number
- EP2021197660
- Authority / Receiving Office
- EP · EP
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2020-09-30
- Filing Date
- 2021-09-20
- Publication Date
- 2025-11-05
- Estimated Expiration
- 2041-09-20
AI Technical Summary
Existing straight-pull bolt actions for repeating firearms require multiple discontinuous movement segments and are not designed for easy and safe operation, lacking an integrated manual cocking system for the firing pin spring.
A straight-pull bolt action mechanism utilizing bevel gears to convert a single continuous motion of the cocking lever into rotational movements of the bolt sleeve and bolt head, incorporating a firing pin spring cocking mechanism that is manually actuated during cartridge change, with a simplified design requiring only two moving parts.
The mechanism allows for a single motion conversion with improved power transmission, reduced wear, and enhanced operational reliability, enabling easy and safe operation with fewer parts and less friction.
Smart Images

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Abstract
Description
[0001] The present invention relates to a straight-pull bolt action for repeating firearms. The invention further relates to a repeating firearm with a straight-pull bolt action.
[0002] A straight-pull repeater is a type of repeating firearm. According to the German Weapons Act, Annex 1, No. 2.3, repeating firearms are "firearms in which, after a shot is fired, ammunition is reloaded from a magazine into the chamber via a manually operated mechanism." Repeating rifles are also considered repeating firearms.
[0003] Repeating firearms typically employ a bolt action. In the open position, a cartridge is chambered. When the bolt is subsequently closed, the firearm is loaded. After firing and / or switching from the open to the closed position, the spent cartridge case is ejected and a new cartridge is chambered. Simultaneously, during the switch from the open to the closed position, a firing pin spring, coaxial with the firing pin, is cocked, enabling another shot to be fired.
[0004] Repeating action mechanisms typically include a bolt handle or repeating lever and a safety. The safety prevents accidental discharge. Furthermore, bolt actions include at least a locking lug, an extractor, a cartridge case, and a firing pin with a firing pin spring.
[0005] German patent DE 100 09 616 C2 describes a straight-pull bolt action with rotating lug locking for repeating rifles. The straight-pull bolt action comprises a bolt sleeve arranged in a bolt body, the bolt sleeve being movable back and forth by means of a bolt handle. A bolt head with locking lugs is rotatably mounted within the bolt sleeve by means of a shaft. The bolt sleeve includes a firing pin, which is actuated by a firing pin spring. The bolt sleeve generates a rotational impulse to rotate the bolt head into the locking chamber corresponding to the locking lugs in the bolted position. Furthermore, the straight-pull bolt action features a locking lever, which is pivotally mounted on the bolt sleeve. The locking lever prevents relative movement between the bolt sleeve and the bolt head.In the locking direction, the locking lever is actuated by a spring.
[0006] German patent DE 196 08 872 C1 describes a locking mechanism for repeating rifles. The locking mechanism comprises a bolt handle that can be locked in the forwardmost position and interacts with a locking device. Furthermore, the locking mechanism includes a firing pin that can be locked in a first rearward position by means of a detent. The bolt handle can be moved linearly to various positions.
[0007] German patent DE 10 2016 120 891 A1 describes a locking device for firearms. The locking device comprises an external sleeve in which a chamber is arranged. The chamber has a locking head. A control piece is slidably mounted within the chamber. A locking lever is connected to the control piece, such that a backward movement of the locking lever unlocks the locking head and a forward movement locks it. The locking head is rotated by axially displacing the control piece.
[0008] A straight-pull bolt action for a repeating rifle is known from DE 10 2018 122 573 B3. The straight-pull bolt action comprises a bolt sleeve rotatably mounted about a longitudinal axis. A control cam extending obliquely to the longitudinal axis is incorporated into the inner sleeve of the bolt sleeve in the rear region. Furthermore, the straight-pull bolt action includes a connecting link with a pin attached to its front end, which engages with the control cam.
[0009] US Patent 4,672,762 A discloses a device for a repeating rifle with a cylinder chamber mechanism comprising a receiver and a chamber. A locking bolt is arranged within the cylinder chamber mechanism. In a locked position, the bolt prevents the chamber head from being rotated from its position engaged with a lug of the receiver or a locking device in the receiver. The rifle cannot be opened in the locked position; that is, the chamber cannot be moved backward within the receiver.
[0010] US Patent 1,568,635 A depicts a bolt-action rifle with a straight bolt action. A bolt is movably mounted within the receiver, serving to hold and chamber a cartridge. The bolt has lugs that move within slots or an annular groove in the receiver. At the rear end of the bolt, from the firing direction, is an annular head with teeth. These teeth engage with teeth on a bolt handle. The toothed portion of the handle is oriented at an angle to the bolt head and can rotate about a fixed point. Pulling the handle backward transmits movement to the bolt via the teeth, causing it to rotate around its longitudinal axis along with its lugs. The bolt can then be retracted along the same axis.
[0011] One object of the present invention, starting from this prior art, is to improve a straight-pull bolt action so that it can be used more easily and safely by a user in a repeating firearm. A further object is to enable a simple, inexpensive design for a straight-pull bolt action. It is also an object of the invention to provide a repeating firearm with a straight-pull bolt action and an integrated manual cocking system, in which the cocking of the firing pin spring before firing is performed manually and simultaneously with the cartridge change.
[0012] The aforementioned problem is solved by a straight-pull bolt action for repeating weapons according to the attached claim 1 and by a repeating weapon according to the dependent claim 9.
[0013] The straight-pull bolt action according to the invention for repeating weapons, in particular for repeating rifles, comprises a bolt sleeve, a first gearing component, a second gearing component, and a cocking lever. The bolt sleeve is a cylindrical hollow body rotatable about a longitudinal axis. The longitudinal axis is parallel, preferably coaxial, to the barrel axis of the weapon, with the muzzle of the barrel being considered as being at the front for the following considerations. A bolt head is arranged at the front end of the bolt sleeve. At the rear end, which is located on the opposite side from the front end, the first gearing component is fixedly mounted to the bolt sleeve. When the first gearing component rotates, the rotation is transferred to the bolt sleeve, causing it to rotate. When the bolt sleeve rotates, the bolt head rotates with it.The second gear component is positioned at an angle, preferably a right angle, to the first gear component. The two gear components are engaged with each other, so that a rotational movement about a first axis transverse to the bore axis can be converted into a rotational movement about a second axis parallel to the bore axis. The cocking lever, which can also be called the bolt handle, is connected to the second gear component. The cocking lever is a lever located in the region of a rotational axis of the second gear component. The cocking lever can rotate about the common rotational axis of the second gear component, at least partially. When the cocking lever rotates, it can be locked into at least two functional positions. A first functional position is the locking position, in which the bolt head is locked by moving or rotating the cocking lever into the locking position, usually initiated by a user / gun operator.The bolt is brought into a locked position. In this process, the movement of the cocking lever transfers the rotational movement around the first axis, perpendicular to the barrel axis, via the two gear components into a rotational movement around the second axis, parallel to the barrel axis. The first gear component then rotates the bolt sleeve with the bolt head around its longitudinal axis, thus turning the bolt head into the locked position. Locking the bolt head is necessary to prevent the pressure generated during firing from causing axial movement of the bolt sleeve and its components.
[0014] The second functional position is the unlocking position, whereby the bolt head is unlocked or moved into an unlocked position by moving or rotating the cocking lever into the unlocking position, preferably by the user. In this process, the movement of the cocking lever transfers the rotational movement about the first axis transverse to the bore axis, via the two gear components, into a rotational movement about the second axis parallel to the bore axis. The first gear component rotates the bolt sleeve with the bolt head about the longitudinal axis of the bolt sleeve, thus rotating the bolt head into the unlocked position. The rotation into the unlocking position and the rotation into the locking position are opposite movements, with one rotation occurring in a positive direction and the other in a negative direction.Rotation of the cocking lever around its axis of rotation occurs in a vertical plane when the weapon is in its normal firing position, i.e., with the barrel axis essentially horizontal. Furthermore, the cocking lever, and with it the transmission components, the bolt sleeve, and the bolt head, can be moved axially forwards and backwards or sideways, so that, if necessary, a spent cartridge case can be ejected and a cartridge inserted into a chamber.
[0015] A key advantage of this design of the straight-pull bolt action is that the shooter can move the bolt handle back and forth along a continuous path when cycling the action. In contrast, previously known repeating firearms typically require at least two discontinuous movement segments.
[0016] In contrast to the prior art, the straight-pull bolt according to the present invention requires only two moving parts for cycling, which offers further advantages in terms of functionality and safety, as fewer parts result in less play, reduced friction, and increased operational reliability. A further advantage lies in the motion conversion for actuating the bolt during cycling. By eliminating the translational movement, the present straight-pull bolt requires only a single motion conversion, resulting in improved power transmission and reduced wear.
[0017] In a preferred embodiment, the first gear component is a first bevel gear, which preferably has a cylindrical extension at its first end, which rests against the sealing sleeve. At its second end, which is opposite the first end, the first bevel gear preferably has teeth circumferentially. Particularly preferably, the first bevel gear has teeth in a section. The teeth together form a gear ring or a gear ring section.
[0018] Alternatively, the first gear component is, for example, a control cam with a recess into which the second gear component engages. In modified embodiments, the gear components can be replaced by other, known components that enable the aforementioned redirection of movements / rotations.
[0019] The first gear component preferably has a through-hole along its longitudinal axis. Preferably, the first gear component is coaxially surrounded by the sealing sleeve in sections.
[0020] In a preferred embodiment, the second gear component is a second bevel gear, which preferably has circumferential teeth that mesh with the teeth of the first bevel gear. Particularly preferably, the teeth of the second bevel gear are formed on a single section. The teeth of the second bevel gear form a toothed ring and preferably lie predominantly on one side face of the bevel gear. The second bevel gear can also be referred to as the drive bevel gear, while the first bevel gear forms the output bevel gear. In this case, the repetition lever is preferably arranged on the side face of the second bevel gear opposite the teeth.
[0021] Alternatively, the second gear component has a shape that can be rotated around the axis of rotation with the repeating lever, with a projection on one side facing away from the repeating lever that engages in the complementary recess of the first gear component. The projection can, for example, be a pin.
[0022] The advantage of this straight-pull bolt action lies in the simple conversion of movement in a first plane into movement in a second plane. This means that a longitudinal displacement of the cocking lever parallel to the rifle barrel or receiver is transformed into a rotational movement of the bolt carrier and bolt head within the receiver. By implementing this movement using bevel gears or co-acting gear components, an improved straight-pull bolt action is available that is easy to assemble and simple and safe to operate.
[0023] According to the invention, the straight-pull locking mechanism comprises a firing pin arranged coaxially to the locking sleeve.
[0024] Preferably, the straight-pull bolt further comprises a firing pin spring. The firing pin preferably has a firing pin collar in its front region. The firing pin spring is arranged coaxially on the firing pin and preferably rests at one end directly against the firing pin collar and at the other end preferably against a tension sleeve. The firing pin is movable along the longitudinal axis of the bolt sleeve.
[0025] According to the invention, the straight-pull locking mechanism comprises a clamping sleeve arranged on the first transmission component and a connecting element. The clamping sleeve and the connecting element are positioned in an axially rear region of the firing pin, wherein both the clamping sleeve and the connecting element preferably have a through-hole through which the firing pin is guided, thus arranging the clamping sleeve and connecting element one behind the other. The connecting element, which can also be referred to as a detent lug, is arranged on the firing pin in a rotationally fixed manner.
[0026] In one embodiment, the second gear component has two spaced-apart pins extending along the axis of rotation on its surface opposite the repeating lever. The pins extend parallel to the axis of rotation of the second gear component, preferably at 90 degrees to the second gear component. The pins can be cylindrical projections, or alternatively, they can be projections of any desired shape.
[0027] The first pin preferably rests against the clamping sleeve and the connecting element. When the repeating lever rotates into the locking position, a motion is transferred, as already described, to the second gear component with the pins arranged on it. The movement of the first pin causes a simultaneous longitudinal movement of the firing pin, the connecting element, and the clamping sleeve along the longitudinal axis.
[0028] Furthermore, the straight-pull bolt preferably includes a trigger lug against which the connecting element comes into contact as soon as the cocking lever is rotated into the bolt position. The contact of the connecting element against the trigger lug prevents it from moving further along its longitudinal axis, thus reducing the distance between the firing pin collar and the cocking sleeve, which in turn cocks the firing pin spring. Cocking the firing pin spring is necessary to trigger the firing of a shot.
[0029] In one embodiment, the straight-pull bolt further comprises a lifting element which, by means of the second pin of the second gear component, is guided into a recess in the bolt sleeve when the repeating lever is rotated into the unlocked position, thus preventing rotation of the bolt sleeve and consequently of the two gear components. The lifting element preferably comprises a lifting pin and a positive lifting mechanism. A spring is preferably arranged between the lifting pin and the positive lifting mechanism, so that the positive lifting mechanism is resiliently mounted on the lifting pin. When the repeating lever, starting from the unlocked position, moves together with the gear components, the bolt sleeve, and the bolt head in a substantially axial direction, first backward and then forward, the lifting element comes into contact with a component and is thereby forced out of the recess in the bolt sleeve.This allows the gearbox components to rotate again with the locking sleeve. The component against which the ejection element comes into contact can be, for example, a sleeve or the rear end of a rifle barrel. The ejection pin preferably comes into contact with the component during a backward movement of the cocking lever in the unlocked position.
[0030] In a further embodiment, the straight-pull bolt action includes a locking element for locking or releasing the rotational movement of the bolt handle. The locking element can be locked in various positions. In a disengaged position, the locking element engages in a groove of the second gear component, thus blocking any rotational movement of the second gear component and consequently any movement of the elements connected to it. The disengaged position prevents unintentional firing or unintentional cocking of the firing pin spring. In the disengaged position of the locking element, the bolt handle is securely in a functional position between the unlocked and locked positions. In this third position, the bolt handle cannot be moved to either of the other two positions.In its activated position, the locking element does not act on the second gear component, allowing it to rotate freely and without being blocked. Other positions in which the locking element can be fixed are conceivable.
[0031] Preferably, the locking element consists of a locking slide and a detent element, between which a spring is tensioned and which interact together. The detent element can also be referred to as a chamber lock.
[0032] In one embodiment, a projection in the form of a wart is formed on the bolt head. Particularly preferably, three warts are formed on the bolt head. A rotary warp locking mechanism can be implemented by means of the projection on the bolt head, which allows the bolt head to be locked in the locked position, with the projection engaging. Furthermore, a rotary warp locking mechanism allows the bolt head to be unlocked by rotating it when the repeating lever is moved into the unlocked position.
[0033] The repeating firearm according to the invention comprises a straight-pull bolt action, which corresponds to the straight-pull bolt action and its embodiments described above. The repeating firearm comprises, in a known manner, a rifle barrel, a fore-end, and a buttstock. The rifle barrel is a sleeve arranged on the fore-end. Furthermore, the straight-pull bolt action is at least partially arranged on the fore-end. The straight-pull bolt action and the rifle barrel are arranged along a common longitudinal axis. The bolt sleeve is surrounded by the rifle barrel.
[0034] Furthermore, the repeating firearm preferably comprises a chamber, a magazine compartment adjacent to the chamber in the form of a recess in the forend, and a magazine safety mechanism. A magazine filled with cartridges can be inserted into the magazine compartment. Through the previously described repeating action, in which the user moves the repeating lever, along with the bolt carrier and other components, axially forward and backward, a cartridge is inserted from the magazine or manually into the chamber.
[0035] Preferably, the magazine safety mechanism for the repeating firearm is designed to securely hold a magazine inserted into the magazine well in position. The magazine safety mechanism is located at the lower end of the magazine well. By sliding the magazine safety mechanism transversely to its longitudinal axis from its initial position to a locked position, it can be engaged in a groove in the magazine well. The magazine safety mechanism can be easily released with one hand by sliding it from the locked position (i.e., out of the groove) to its initial position and then sliding it along its longitudinal axis away from the muzzle of the barrel, thereby removing the magazine.
[0036] In one embodiment, the repeating firearm with the straight-pull bolt action further comprises a retaining element, which can also be referred to as a bolt retainer. The retaining element is located in a rear region of the receiver and rests in a recess in the receiver or rifle barrel that is oriented at an angle to the longitudinal axis. The retaining element and the recess are designed to interlock. The retaining element serves to hold the bolt receiver in place so that it does not rotate during movement along its longitudinal axis.
[0037] When the repeating lever with the locking sleeve and other components moves along the longitudinal axis, the locking head preferably comes into contact with a plate, or alternatively preferably with a recess, with its lug, so that the maximum opening of the locking sleeve is limited.
[0038] Further advantages, details and developments of the invention will become apparent from the following description of a preferred embodiment, with reference to the drawing. The drawing shows: Fig. 1 a perspective view of a straight-pull fastener according to the invention; Fig. 2 a second perspective view of the in Fig. 1 The straight-pull fastener shown has different operating positions; Fig. 3 is a detailed view of the straight-pull fastener according to... Fig. 1 in a functional position, in particular an unlocking position; Fig. 4 a detailed view of the straight-pull lock according to Fig. 1 in a second functional position; Fig. 5 a top view of a rear section of the in Fig. 1 straight-pull fastener shown; Fig. 6 a perspective detail view of the rear section of the straight-pull fastener according to Fig. 1 in a locked position; Fig. 7 two detailed views of the straight-pull lock according to Fig. 1 before and after firing; Fig. 8 a third perspective view of the straight-pull bolt according to Fig. 1 in a sleeve; Fig. 9 a detail view of a repeating weapon with a magazine compartment with magazine safety element in a starting position; Fig. 10 a detail view of the repeating weapon with the magazine compartment with magazine safety element in an ejection position; and Fig. 11 a detail view of the repeating weapon with the magazine compartment with magazine safety element in a safe position.
[0039] Fig. 1 Figure 1 shows a perspective side view of a straight-pull bolt action according to the invention for repeating firearms. The straight-pull bolt action comprises a bolt sleeve 01, which is rotatable about a longitudinal axis 02. When inserted into a firearm, the longitudinal axis 02 is coaxial with the barrel axis of the firearm. A bolt head 03 is fixedly arranged at the front end of the bolt sleeve 01. The bolt head 03 has three lug-like projections 04 circumferentially. A first gear component in the form of a first bevel gear 06 is fixedly arranged at the rear end of the bolt sleeve 01. The first bevel gear 06 has a cylindrical body at the rear end of which at least one section has several teeth 07. A through-bore (not shown) extends through the cylindrical body of the first bevel gear 06 along the longitudinal axis 02.Furthermore, the straight-pull bolt mechanism comprises a second gear component in the form of a second bevel gear 08, which is positioned at a 90° angle to the first bevel gear 06 and engages with it. The second bevel gear 08 also comprises at least several teeth, which engage with the teeth 07 of the first bevel gear 06. A rotary motion can be mechanically transmitted between the first bevel gear 06 and the second bevel gear 08, with the respective axes of rotation preferably being perpendicular to each other. The straight-pull bolt mechanism also comprises a repeating lever 09, which is connected to the second bevel gear 08, preferably aligned with an axis of rotation 10. Fig. 2 ) of the second bevel gear 08. The repeating lever 09 and the second bevel gear 08 are jointly rotatable, at least partially, about the common axis of rotation 10. If the repeating lever 09 is moved by a user about the axis of rotation 10, the second bevel gear 08 also rotates, as does the first bevel gear 06, which engages with the second bevel gear 08, and with it the attached locking sleeve 01. The locking head 03 rotates with the locking sleeve 01. The various functional positions of the repeating lever are described below with reference to Fig. 2 described.
[0040] Fig. 1 Figure 11 further shows that the straight-pull bolt comprises a firing pin 11 arranged in the bolt sleeve 01, which is acted upon by a firing pin spring 12. The firing pin 11 is arranged coaxially with the bolt sleeve 01 and has a firing pin collar 13 in its front region. The firing pin spring 12 is arranged coaxially on the firing pin 11 and rests at one end against the firing pin collar 13 and at the other end against a tension sleeve 19. The firing pin 11 is axially movable along the longitudinal axis 02 of the bolt sleeve 01. In its rear region, the firing pin 11 extends through a through-hole in the tension sleeve 19, the tension sleeve 19 being arranged in a through-hole in the first bevel gear 06. The through-holes extend along the longitudinal axis 02.
[0041] Fig. 1 Figure 14 further shows that the straight-pull bolt action includes a safety element 14 for locking or releasing a rotary movement of the cocking lever 09. The safety element 14 comprises a safety slide 16 and a detent element 17 between which a spring 18 is tensioned. The safety slide 16 is movably mounted. The detent element 17 is located on, and the spring 18 is located on, the firing pin 11. The spring-loaded safety element 14 can be locked in various positions. The operation of the safety element 14 is described with reference to Figure 1. Fig. 6 A further explanation follows. Axially between the detent element 17 and the first bevel gear 06, the clamping sleeve 19, which rests against the first bevel gear 06, and a detent flag 21 are arranged on the firing pin 11. The second bevel gear 08 has two pins 22, 23 on its surface facing away from the repeating lever 09. These pins are spaced apart from each other and extend parallel to the axis of rotation 10, in the area outside the axis of rotation 10. The first pin 22 bears against the clamping sleeve. The second pin 23 of the second bevel gear 08 interacts with a lifting element 24 arranged on the first bevel gear 06. The lifting element 24 comprises a lifting pin 26 and a forced lifting mechanism 27, as well as a lifting spring 28 arranged between them. The function of the lifting element 24 is described in more detail in the following illustrations.
[0042] Fig. 1 also shows a trigger lug 29 arranged on the straight-pull breech with trigger 30 and trigger bar 31 arranged between them.
[0043] Fig. 2 shows a second side view of the in Fig. 1 The straight-pull bolt shown here has the various functional positions of the repeating lever 09. The repeating lever 09 can assume three functional positions. Functional position A is a locking position, functional position B ( Fig. 4 Position A is an intermediate position, and functional position C is an unlocking position. Intermediate position B lies between locking position A and unlocking position C. When the cocking lever 09 is moved to locking position A, the breech sleeve 01 is rotated about its longitudinal axis 02 via the two bevel gears 06 and 08. The breech head 03 rotates with the breech sleeve 01, and its lugs 04 lock the breech head 03 onto the chamber (not shown) when the straight-pull bolt is installed in a corresponding firearm. The locking of the breech head 03 prevents the pressure generated during firing from causing axial movement of the breech sleeve 01 with the firing pin and its attached components.Optionally, a gear ratio other than one can be selected in the transmission formed by the two bevel gears, so that, for example, the rotation of the repeating lever 09 by 45° causes a rotation of the locking sleeve by 90°.
[0044] When the user rotates the repeating lever 09 into the unlocked position C, the locking head 03, located on the locking sleeve 01, is unlocked by a rotation transmitted via the two bevel gears 06 and 08. When the repeating lever 09 is rotated into the unlocked position C, the second pin 23, located on the second bevel gear 08, moves the ejection pin 26 axially, compressing / shortening the ejection spring. The resulting forced ejection 27 is guided into a recess 32 in the locking sleeve 01, thus blocking movement of the locking sleeve 01, the first bevel gear 06, and consequently, the second bevel gear 09.
[0045] Fig. 3 shows a detailed view of the straight-pull lock according to Fig. 1 in a functional position, namely an unlocking position C, which is also in Fig. 2 as shown and previously described. In contrast to Fig. 2 shows Fig. 3 A sleeve 33, which is part of the weapon's housing, coaxially surrounds the breech sleeve 01 when installed. The breech sleeve 01 is movable within the sleeve 33. A radially extending contact surface 34 is formed at the rear end of the sleeve 33. In the unlocked position C, the user can move the cocking lever 09 axially backward, i.e., against the direction of fire. Repositioning the grip on the cocking lever is not required; rather, the movement initiated by the rotation of the cocking lever 09 is seamlessly converted into a linear movement.When the repeating lever 09 is moved axially backwards along the longitudinal axis 02, the forced lift 27, with a radially shaped running surface 36, engages the running surface 34 of the sleeve 33 shortly before the repeating lever 09 reaches its end position. This causes an axial displacement of the breech sleeve 01, with the attached bolt head 03 and other components arranged thereon, against the direction of fire. This axial movement allows a cartridge case to be extracted from the chamber, enabling reloading. A stuck cartridge case is extracted from the chamber by force. During the axial movement of the repeating lever 09, the forced lift 27 is pushed out of the recess 32 of the breech sleeve 01, thus re-enabling the movement of the two bevel gears 06 and 08.
[0046] Fig. 4 shows a detailed view of the straight-pull lock according to Fig. 1 in a functional position, namely an intermediate position B. When the repeating lever 09 is pivoted back from the unlocking position C towards the locking position A, it can assume the intermediate position B, whereby the spring-loaded detent element 17 engages in a lateral recess 37 of the second bevel gear 08. The lateral recess 37 of the second bevel gear 08 is located in a limited section of the bevel gear 08. By engaging the detent element 17 in the recess 37 of the second bevel gear 08, movement of the repeating lever 09 back to the unlocking position C is advantageously prevented. In this state, the bolt is approximately 40% locked, the firing pin spring 12 is relaxed, and the detent lug 21 has a distance X from the trigger lug 29.The limited lateral recess 37 of the second bevel gear 08 allows continued movement of the repeating lever into the locking position A, but not accidental return to the unlocking position C. Furthermore, in . Fig. 4 It is evident that with continued movement of the repeating lever 09 into the locking position A (in relation to the in Fig. 3 (in the position shown) the distance between the lifting pin 26 and the forced lifting mechanism 27 has increased, whereby the lifting spring 28 is relaxed.
[0047] Fig. 5 shows a top view of the in Fig. 1 straight-pull closure shown. In Fig.5 The repeating lever 09 is in the intermediate position B, which is also in Fig. 4 as shown and previously described. In contrast to Fig. 4 is in Fig. 5 The figure shows how the locking element 17 is guided out of the recess 37 of the second bevel gear 08. The locking slide 16 has an axially forward-extending slide arm 38 at one end, which is angled at its end. The end of the slide arm 38 extends radially inwards. The locking element 17 has two radially extending locking arms 39, 41, which are formed opposite each other on the locking element 17. The first locking arm 39, which extends towards the slide arm 38, is angled at its end so that the slide arm 38 can engage with the first locking arm 39. If the detent element 17, in particular its first detent arm 39, is located in the recess 37 of the second bevel gear 08, the first detent arm 39 can be released from the recess 37 by means of the locking slide 16 by engaging the locking arm 39, thus enabling the repeating lever to be rotated back into the unlocking position C.The first locking arm 39 is moved out of the recess 37 by a radial movement of the safety slide 16 away from the repeating lever 09, whereby the slide arm 38 and the first locking arm 39 engage and perform a joint axial rearward movement. Fig. 5 It is also evident that the excavation element 24 does not engage in the recess 32 of the sealing sleeve 01 in the intermediate position B.
[0048] Fig. 6 shows a detailed view of the straight-pull lock according to Fig. 1 in a secured position. If the repeating lever 09 is in the intermediate position B, a secured position of the straight-pull bolt can be set using the safety element 14, whereby the safety slide 16 is moved radially towards the repeating lever 09, whereupon the first detent arm 39 moves forward parallel to the longitudinal axis 02 and is guided into a groove 42 of the second bevel gear 08. In this secured position, cocking the firing pin spring, firing, reloading, or unlocking is not possible. The repeating lever 09 cannot be moved to the locked position A or the unlocked position C in the secured position, as these movements are blocked by the engagement of the first detent arm 39 in the groove 42 of the second bevel gear 08. To release the blockage or to move the first detent arm 39 out of the groove 42, the safety slide 16 must be moved as shown in Fig. 5 described, moved.
[0049] Fig. 7 shows a detailed view of the straight-pull lock according to Fig. 1 Before and after firing. The left illustration shows the straight-pull bolt action before firing. The cocking lever 09 was previously pivoted from the unlocked position C and / or the intermediate position B to the locked position A. The locked position A, in which the bolt head 03 is locked to the bolt sleeve 01, is also shown in Fig. 2 As shown. When the repeating lever 09 is moved into the locking position A, the second bevel gear 08 rotates with the repeating lever 09, whereby the first pin 22 of the second bevel gear 08 is rotated clockwise with it against the clamping sleeve 19, and the clamping sleeve 19, the detent flag 21, the firing pin 11 with the firing pin collar 13, and the firing pin spring 12 are moved forward along the longitudinal axis 02. If the distance X (in Fig. 4 (as shown) the distance between the detent lug 21 and the trigger lug 29 is reduced to zero, causing the detent lug 21 to run against the trigger lug 29. Due to further movement of the cocking lever 09 until the final locking position A is reached, the second bevel gear 08 with the first pin 22, and with it the cocking sleeve 19, is moved further forward. Since the detent lug 21 is prevented from moving further by the trigger lug 29, a gap Y is created between the cocking sleeve 19 and the detent lug 21, which tensions the firing pin spring 12. As the detent lug 21 runs against the trigger lug 29, the firing pin 11 is also prevented from moving further forward. When the locking position A is reached, the straight-pull bolt is 100% locked and the firing pin spring 12 is tensioned, so that a shot can be fired.
[0050] The right-hand illustration shows the straight-pull bolt action after firing. During firing, which is triggered by the user pulling the trigger 30, the trigger bar 31 moves the sear 29 downwards, allowing the detent lug 21 to move freely and forwards, reducing the distance Y to zero. This releases the firing pin spring 12 and releases the firing pin 11. After firing, the second detent arm 41 of the detent element 17 engages in a lateral recess 43 of the detent lug 21 (position E). When the cocking lever 09 is moved back to the intermediate position B or the unlocked position C after firing, the second detent arm 41 of the detent element 17 slides out of the recess 43 of the detent lug 21.
[0051] If no shot is fired, the locking element 17 remains in position D and blocks the return movement of the repeating lever 09 at the intermediate position B or reaches the unlocking position C after actuation of the safety slide 16.
[0052] Fig. 8 shows a side view of the straight-pull lock according to Fig. 1 in the sleeve 33. During the axial movement of the repeating lever 09 with the locking sleeve 01, the process already described with reference to Fig. 3 As described, a bolt retainer 44 prevents the straight-pull bolt from rotating in the sleeve 33. The bolt retainer 44 is located in a bore on the lower side of the sleeve 33 and engages with the bolt sleeve 01 in a longitudinal groove (not shown) during the forward and backward movement of the straight-pull bolt or the repeating lever 09, thus preventing the bolt sleeve 01 from rotating about its longitudinal axis. The maximum opening position of the straight-pull bolt is limited by a plate 46. The plate 46 is located in a rear region of the sleeve 33. At the maximum opening position of the straight-pull bolt, the bolt head 03, with its lugs 04, comes into contact with the plate 46.
[0053] Fig. 9 Figure 1 shows a detailed view of a repeating firearm, particularly in the area of a magazine compartment 47 located on the underside, which is equipped with a magazine safety element 48. The repeating firearm is viewed from below, and the trigger 30 and the cocking lever 09 are also shown. The magazine compartment 47 is a recess in the forend 49 of the repeating firearm. A magazine 51 is inserted into the magazine compartment 47, and the magazine 51 may contain one or more cartridges (not shown). The magazine safety element 48 is located in an additional recess 52 at the lower end of the magazine compartment 47, the recess 52 also having a groove 53. The recess 52 extends perpendicular to the longitudinal axis 02 of the firearm. The groove 53 extends transversely to the longitudinal axis 02. In the shown Fig. 9 The magazine locking element 48 is arranged in an initial position in the recess 52.
[0054] Fig. 10 Shows a detailed view of the repeating weapon with magazine compartment 47 and magazine safety element 48 in an ejection position. Initially, it resembles Fig. 10 the in Fig. 9 as shown, differing from Fig. 9 The magazine locking element 48 is in the ejection position. A user can move the magazine locking element 48 into the ejection position by sliding it parallel to the longitudinal axis 02 in the direction of the trigger 30 from its initial position to the ejection position. When the magazine locking element 48 is in the ejection position, the user can remove the magazine 51 and reinsert it into the magazine compartment 47. Inserting the magazine 51 into the magazine compartment 47 is also possible when the magazine locking element 48 is in its initial position.
[0055] Fig. 11 shows a detailed view of the repeating weapon with magazine compartment 47 and magazine safety element 48 in a safe position. Initially, it resembles Fig. 11 the in Fig. 9 und Fig. 10 as shown, differing from Fig. 9 The magazine locking element 48 is in a locked position. The magazine locking element 48 is moved into the locked position by sliding it laterally perpendicular to the longitudinal axis 02 into the groove 53 of the recess 52. Advantageously, the movement of the magazine locking element 48 can be performed with one hand. A further advantage is that, in the locked position, the magazine 51 is secured in the magazine compartment 47, and the magazine locking element 48 also prevents the magazine 51 from being unintentionally released from the magazine compartment 47. Bezugszeichen
[0056] 01 Locking sleeve 02 Longitudinal axis 03 Locking head 04 Tuck extension 05- 06 First gear component / first bevel gear 07 Tooth 08 Second gear component / second bevel gear 09 Repeating lever 10 Pivot axis 11 Firing pin 12 Firing pin spring 13 Firing pin collar 14 Safety element 15- 16 Safety slide 17 Detent element 18 Spring 19 Tension sleeve 20- 21 Detent flag 22 First pin 23 Second pin 24 Ejection element 25- 26 Ejection pin 27 Forced ejection 28 Ejection spring 29 Trigger lug 30 Trigger 31 Trigger bar 32 Recess of the locking sleeve 01 33 Sleeve 34 Lead-in surface of the sleeve 33 35- 36 Lead-in surface of the Forced ejection 27 37 Recess of the second bevel gear 08 38 Slide arm 39 First detent arm 40- 41 Second detent arm 42 Groove of the second bevel gear 08 43 Recess of the detent flag 21 44 Lock holder 45- 46 Plate 47 Magazine compartment 48 Magazine locking element 49 Forend 50- 51 Magazine 52 Recess 53 Groove of the recess 52 A Locking position of the repeating lever 09 B Intermediate position of the repeating lever 09 C Unlocking position of the repeating lever 09 D Position of the detent element 17 before firing E Position of the second detent arm 41 after firing X Distance between detent lug 21 and trigger lug 29 Y Distance between clamping sleeve 19 and detent lug 21
Claims
1. Straight-pull bolt for repeating rifles, comprising - a bolt case (01) which can be rotated about a longitudinal axis (02) and can be axially displaced along this longitudinal axis (02) with a front end, at which a bolt head (03) is arranged in a non-rotatable manner, and a rear end at which a first gear component (06) is arranged in a non-rotatable manner, wherein the bolt case (01) rotates with the rotation of the first gear component (06); - a firing pin (11) arranged coaxially to the bolt sleeve (01), - a clamping sleeve (19) arranged on the first gear component (06) and a connecting element (21), which are positioned on a rear part of the firing pin (11), wherein the connecting element (21) is attached to the firing pin (11) in a non-rotatable manner; - a second gear component (08), which lies at an angle to the first gear component (06) and engages with the latter to transmit a rotary movement; and - a bolt-action lever (09), which is connected to the second gear component (08), so that the bolt-action lever (09) can be rotated at least in sections together with the second gear component (08) around a common axis of rotation (10), wherein the bolt-action lever (09) can be engaged in at least two function positions (A, C), so that the bolt head (03) is locked via the two gear components (06, 08) and the bolt case (01) in a locking position (A) of the bolt-action lever (09) and the bolt head (03) is unlocked in an unlocking position (C) of the bolt-action lever (09), and wherein the bolt-action lever (09) together with the two gear components (06, 08) and the bolt case (01) can be moved back and forth in an axial direction parallel to the longitudinal axis (02) with the bolt head (03).
2. The straight-pull bolt according to claim 1, characterised in that the firing pin (11) has a firing pin collar (13) in the front area, and that the straight-pull bolt further comprises a firing pin spring (12) arranged coaxially on the firing pin (11), wherein the firing pin spring (12) is in contact with the firing pin collar (13).
3. The straight-pull bolt according to claim 1 or 2, characterised in that the second gear component (08) has a two spaced pins (22, 23) extending parallel to the axis of rotation at its surface opposite the bolt-action lever (09), wherein the first pin (22) is in contact with the clamping sleeve (19) and, when the bolt-action lever (09) is rotated into the locking position (A), effects a movement of the firing pin (11), of the connecting element (21) and the clamping sleeve (19) along the longitudinal axis (02).
4. The straight-pull bolt according to claim 3, characterised in that it further has a sear (29), at which the connecting element (21) comes into contact when the bolt-action lever (09) is rotated into the locking position (A) and is thereby prevented from further movement along the longitudinal axis (02), so that the distance between the firing pin collar (13) and the clamping sleeve (19) is reduced, as a result of which the firing pin spring (12) is tensioned.
5. The straight-pull bolt according to claim 3 or 4, characterised in that it further comprises an ejection element (24), which is guided into a recess (32) of the bolt case (01) by means of the second pin (23) of the second gear component (08) in the unlocking position (C) of the bolt-action lever (09), so that a rotational movement of the bolt case (01) and thus of the two gear components (06, 08) is prevented and at the same time, through support of the ejection element (24) on an approach surface (34) of the sleeve (33) or of a rifle barrel, a positively controlled ejection of a cartridge case from a cartridge chamber is brought about.
6. The straight-pull bolt according to any one of claims 1 to 5, characterised in that it further comprises a safety member (14) for locking or releasing the rotary movement of the bolt-action lever (09), wherein the safety element (14) engages in a groove (42) of the second gear component (08) in a deactivation position, in order to block a rotational movement of the same and thus of the bolt-action lever (09), and wherein the safety element (14) in an activation position does not have a blocking action on the second component (08).
7. The straight-pull bolt according to any one of claims 1 to 6, characterised in that the bolt-action lever (09) can be moved into an intermediate position (B).
8. The straight-pull bolt according to any one of claims 1 to 7, characterised in that the first gear component is formed by a first bevel gear (06) and the second gear component by a second bevel gear (08).
9. A repeating rifle with a straight-pull bolt, characterised in that the straight-pull bolt is designed according to any one of claims 1 to 8, furthermore comprising a rifle barrel as well as a fore-stock and a butt-stock.
10. The repeating rifle according to claim 9, characterised in that it further comprises a cartridge chamber, a magazine compartment (47) adjacent to the cartridge chamber in the form of a recess in the fore-stock (49), into which a magazine (51) can be inserted, and a magazine safety member (48), which can be locked in its position in a groove (53) by a displacement transversely to the longitudinal axis (02).
Citation Information
Patent Citations
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