• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Clamping device (1) for a crossbow (2) or a comparable device with a shaft (3) and associated limbs (4), wherein a connecting element (5) is provided, which for connection to the shank (3) of the crossbow (2 ) and fastening devices (6) for the rotatable or pivotable attachment of the limbs (4), wherein the connecting element (5) with at least one with the limbs (4) connectable drive device (7) is connected, with which the limbs (4) from a first position (P1), in which the limbs (4) with the shaft (3) enclose a first angle (α1), into a second position (P2) in which the limbs (4) engage with the shaft (3) include a second angle (α2), rotatable or pivotally translatable, wherein the second angle (α2) is greater than the first angle (α1) to move the limbs (4) and a tendon (8) connected thereto from a relaxed position (α2). P1) in a ready to move, cocked e position (P2) and crossbow (2) with such a tensioning device (1).
    公开号:AT518555A4
    申请号:T50658/2016
    申请日:2016-07-20
    公开日:2017-11-15
    发明作者:Missbach Gerald；Jursitzky Harald
    申请人:Missbach Gerald；Jursitzky Harald；
    IPC主号:
    专利说明:

    The invention relates to a tensioning device for a crossbow or a comparable device, with a shaft and associated limbs.
    The invention further relates to a crossbow having a shaft extending in the weft direction for receiving a projectile, in particular an arrow or a round ball, and having two limbs rotatably or pivotably connected to the shaft, to which a tendon provided for engagement in the projectile is attached.
    Crossbows are well known in the art and are used in both sports and hunting.
    In contrast to bows, in which an arrow is first brought into engagement with a tendon and then the limbs of the bow are stretched by the shooter's power, in a crossbow the limbs are first stretched by retracting the tendon connected thereto and then a bullet, for example, an arrow, engaged with the tendon.
    The limbs are tensioned either solely by the shooter's power, with support from tensioning devices such as tension levers or winches, or solely by tensioning devices which, for example, displace the limbs in the longitudinal direction of the crossbow towards a triggering device or against an abutment. The disadvantage here is that the clamping takes a relatively long time and only a very low shot can be achieved.
    From WO 01/92808 Al, a motor-driven crossbow emerges, which has a battery-operated electric motor, which is connected to a threaded rod. This threaded rod displaces a trigger block engaging the string to be clamped along the crossbow. Swiveling limbs are attached to the main body of the crossbow, which enables space-saving transport or space-saving storage. The construction is mechanically relatively complex.
    CN 103353257 A discloses a collapsible bow with adjustable tension. For this purpose, the bow has pivotally mounted arms, whose position can be adjusted by means of at least one length-adjustable device, for example a reciprocating piston, whereby the tension of the tendon can be changed.
    A disadvantage of known crossbows is that the clamping process is time-consuming and also effortless with simple models. Often, the shooter has to leave his lying position, for example, to stretch the crossbow, in which case tensile forces of up to 150 kg are common. Manual clamping operations can take more than 30 seconds and are cumbersome, especially when levers or winches are to be operated. Even with electric drive means for tensioning the limb of the crossbow, the tensioning process often takes too long to achieve a sufficiently high firing rate and deliver a second shot to a moving target. In addition, such crossbows are usually heavy and unwieldy.
    The object of the present invention is to provide an above-mentioned tensioning device for a crossbow or a comparable device, which allows a rapid and preferably low-noise tensioning of the crossbow without effort by the shooter. In particular, the shooter should not or only slightly change his shot position or posture for the clamping process. In addition, the clamping device should allow a compact transport of the crossbow, which should be transferred without tools from a space-saving transport position in a bullet-ready position. The construction should be simple, robust and inexpensive to build. The tensioning device should preferably be suitable for retrofitting existing crossbows, but may also be integrated into appropriately developed crossbows. Disadvantages of known clamping devices should be avoided or at least reduced.
    The object of the present invention is also to provide an above-mentioned crossbow having the advantages mentioned in connection with the tensioning device.
    The object of the invention is achieved with respect to the clamping device in that a connecting element is provided, which is designed for connection to the shaft of the crossbow and fastening devices for rotatable or pivotal attachment of the limbs, wherein the connecting element is connected to at least one connectable to the limbs drive device in that the limbs are rotatably or pivotally translatable from a first position in which the limbs enclose with the shaft at a first angle to a second position at which the limbs engage the shaft at a second angle, the second angle being greater as the first angle is to transfer the limbs and associated tendon from a relaxed position to a ready-to-shoot, cocked position. The tensioning device according to the invention is thus suitable for an arrangement on a crossbow or a comparable device, such as e.g. Harpoon, line throwing device, toy crossbow, pistol crossbow, spear thrower (bailists), provided. The crossbow has, in a manner known per se, a shaft which is designed to receive and guide a projectile to be shot, in particular an arrow. The shaft extends longitudinally, i. in the intended weft direction of the crossbow and is connected at or near a in the use position of the crossbow away from the shooter end with two limbs. During the tensioning process, the two limbs are elastically deformed or bent in order in this way generally to store therein the energy which is provided for the acceleration of the projectile. In known crossbows the limbs are usually firmly connected to the shaft. In contrast, a connecting element according to the invention is provided, which has fastening devices for a rotatable or pivotable attachment of the limbs. Preferably, a fastening device for each limb is provided in each case. For example, the limbs may be rotatably received by means of a pin attached thereto in each case a borehole of a fastening device, while the fastening device is firmly connected to the connecting element. The connecting element itself is designed to be connected to or connected to the shaft of the crossbow. For example, the connecting element is screwed to the shaft. So that the limbs can be stretched over the tendon associated therewith without any effort by the shooter or user of the crossbow, at least one drive device is provided, which is connected to the connecting element and also connected to the limbs or connected. In the case of a fastening device firmly connected to the connecting element, the drive device can be connected directly to the limbs in order to pivot them. In particular, the drive device is configured to pivot the rotatable limbs received in the attachment device from a first position in which the limbs enclose with the shaft at a first angle to a second position in which the limbs enclose a second angle with the shaft , Here, the second angle is greater than the first angle, both angles between the limbs and the shaft are considered towards the shooter facing the end of the shaft. When the limbs assume the first angle to the stem, these and the tendon connected thereto are in a relaxed position, in which the shooter is subjected to substantially no effort, i. Without having to stretch the crossbow or without having to deform the limbs, the tendon can engage with a crossbow release device. In this position the limbs and the tendon are not stretched. If, on the other hand, the limbs occupy the second angle to the shaft, these and the associated tendon are in a ready-to-fire, tensioned position, in which the energy required for the acceleration of the projectile is stored in the limbs. By operating the triggering device, whose function is known from known crossbows, the tendon is released and accelerates the projectile in the firing direction. The drive device thus performs the pivotal movement of the limbs from the relaxed position, in which the tendon is easily and rapidly engaged with the trigger, into the ready-to-cock, cocked position, i. the drive device causes the deformation of the limbs and thus the energy storage in the limbs. The tensioning device can be provided as a fixed part of a crossbow or a comparable device or can be used as a retrofitting device for existing crossbows or similar devices. In the latter case, the tensioning device, i. the connecting element with the fastening devices and the at least one drive device, connected to the crossbow, in particular with the shaft and the limbs after previously the connection of the limbs with the shaft has been solved. Due to the rotatable limbs, the crossbow can be transported in a particularly space-saving manner, in particular when the limbs bear against the shaft.
    According to a preferred embodiment of the invention, the fastening devices are rotatably or pivotally connected to the connecting element. Conveniently, then the limbs are fixed, i. not rotatable, connected to the fastening devices. For the rotatable arrangement, the fastening devices may each have a projection protruding therefrom, such as a pin or pin, which rotatably engages in each case in an opening correspondingly formed in the connecting element. Constructions for producing a rotatable or pivotable connection between two bodies, which in the context of the invention are the connecting element and the fastening devices, are known to the person skilled in the art, for which reason a more detailed description can be dispensed with.
    It is particularly favorable if the at least one drive device is arranged on the rotatable or pivotable fastening devices. Thus, a direct connection of the drive device is avoided with the limbs and the clamping device can be designed to be particularly compact and stable. The drive device thus rotates or pivots the attachment devices to which the limbs are attached, e.g. are clamped. For an independent of the force of a user clamping the crossbow can be provided that the drive device is an electrically operated, a hydraulically operated, a pneumatically operated or operated by a combination thereof drive device. For example, the drive device is a motor, in particular an electric motor. The drive device is connected to a suitable power source, such as a battery, and is generally actuated by the user for the clamping operation, thereby activating the motor or, for example, pressurizing a fluid.
    The force required for the tension of the crossbow can be transmitted particularly advantageously to the fastening devices or to the limbs, if the drive device has at least one lifting device with a lifting piston which can be displaced hydraulically, electrically or pneumatically. The drive device is thus designed to change its extent between the shaft and the fastening devices or the limbs when the drive device is activated. For this purpose, a lifting device with a retractable or displaceable on actuation reciprocating piston is particularly suitable. Since the attachment devices or the limbs are pivotally connected to the shaft, even a slight change in length of the drive device, in particular a slight displacement of the reciprocating piston, allow for the rotation of the limbs or for pivoting the limbs from the first position to the second position , In the case of a single lifting device for actuating both limbs, connecting devices, for example with rods or gears, may be provided in order to transmit the translational movement of the lifting piston as uniformly as possible to both limbs.
    It is particularly favorable if the drive device in each case has a hydraulically, electrically or pneumatically operated lifting device which can be connected to a limb, whose reciprocating piston includes an acute angle, preferably less than 60 °, particularly preferably less than 45 °, with an imaginary extension of the shaft. In particular, the angle can be 20 ° to 30 °. By providing one lifting device per throwing arm, a particularly simple construction can be created. In order to construct the clamping device as possible to save space, the reciprocating piston or other variable in length drive device is arranged in the above-mentioned acute angle to the shaft. The acute angle is defined here between the reciprocating piston, in particular the direction in which the reciprocating piston shifts to the limbs, and the firing direction in which the shaft extends away from the shooter. As a result of the smallest possible acute angle, the limb-side end of the lifting device is also close to the rotary or. Pivot axis of the fastening device attached to the fastening device, so that with small changes in height correspondingly large changes in angle of the limbs can be achieved. In this way, the crossbow can be stretched very quickly, for example within a second or even less. In addition, lifting devices can be provided with a small length extension, whereby the clamping device can be made even more compact and weight-saving.
    According to a further feature, it is provided that the drive device is designed to transfer the limbs from the second position in the direction of the first position, preferably in the first position, after the firing. The return of the limbs in the direction of the relaxed, first position by means of the drive device makes it easier for the shooter to bring the tendon after a firing again with the triggering device in engagement and can shorten the time required for this purpose. Preferably, the feedback takes place within one second, in particular less than 100 ms. In addition, this process takes place without any effort by the shooter. For example, the return by the shooter can be triggered manually. For this purpose, an actuator for a pressure relief of a hydraulically, electrically or pneumatically operated lifting device may be provided.
    The drive device can be designed to be deactivatable and, for deactivation, have a deactivation device that can be actuated by the limbs or the tendon at the end of the firing, in order to turn or stretch the strained limbs automatically in the direction of the first position, preferably in the first position. By deactivating the drive device, the force exerted by the drive device on the limbs or the attachment devices for tensioning the crossbow force is reduced or completely eliminated. This process is of course only after the projectile was fired and is triggered by the limbs or the tendon. The position of the limbs or tendon can be used to operate the deactivation device. Immediately after the deactivation of the drive device, the limbs can automatically, without manual intervention by the shooter, pivot in the direction of the shaft due to the tension still maintained across the tendon. In this way, the return of the limbs takes place in a very short time.
    The drive device can advantageously be deactivated automatically by the deactivation device having an actuating element for a pressure relief of the hydraulically, electrically or pneumatically operated lifting device. Preferably, the actuator is achieved by impact of the chord or at least one of the limbs on the actuator, at the end of firing, i. when the tendon or the limbs are in a position as far away as possible from the shooter, press. The actuator may be an electrical switch, after the actuation of which the pressure exerted by an electric lifting device, or the corresponding force on the limbs, is eliminated. In the case of a hydraulically or pneumatically operated lifting device, the actuating element is preferably a valve, which is opened by contact with the tendon or the limbs.
    The automatic return of the limbs after a firing in a relaxed position can be done or supported, that the drive device has at least one return spring for the automatic return of the limbs in the direction of the first position, preferably in the first position. In this way, the drive device causes both the tension and the relaxation of the crossbow. As a return spring can serve a coil spring, which is received for example in the lifting device.
    In order to perform the clamping operation as quiet as possible, it is advantageous if the drive device is equipped with a noise insulation. This is particularly advantageous when the crossbow is used for hunting purposes. For example, the drive device may be at least partially surrounded by sound absorbing material.
    In order to prevent inadvertent, premature firing and associated possible injuries to persons or animals, the drive device may be connected to a securing element and this with a securing device, which securing device is designed to mechanically fix both the tendon in a tripping device connected to the shaft or release as well as to activate or deactivate the drive device, the safety device in a deactivation position of the securing element deactivates the drive device, activated in a securing position of the securing element, the drive and fixed the tendon and activated in a release position of the securing element, the drive device and the tendon for a Firing releases. The fuse element may be, for example, a switch with three positions, which is actuated by the shooter. In this case, the switch is switched from the deactivation position to the securing position and from there to the release position. In this way it is prevented that the bullet is fired before setting the release position. The securing element is connected to the securing device, which on the one hand mechanically fixes the tendon in the triggering device or releases it for firing and on the other hand activates or deactivates the drive device. The deactivation can be done by interrupting the power supply or the pressure connection to the electrical, pneumatic or hydraulic components of the drive device. In the deactivation position of the securing element, in which the drive device is deactivated, the relaxed tendon can be brought into engagement with the triggering device and a bullet can be inserted into the crossbow. In the securing position of the securing element, the tendon is fixed in the triggering device and the driving device is activated, i. the crossbow is stretched. In the release position of the securing element, the drive device remains activated and the tendon is released for a firing of the triggering device.
    So that the drive device can be supplied with energy and the shooter can also hold the crossbow comfortably, it is advantageous if the drive device for power supply an integrated or replaceable compressed air tank or
    Memory for electrical energy has as a shoulder rest. In the case of a memory for electrical energy, in particular at least one battery or at least one accumulator is provided. The compressed air tank or the storage of electrical energy can be permanently connected to the crossbow and have connections for recharging with electrical energy or compressed air, such as a valve. Alternatively, the compressed air tank or the storage for electrical energy of the crossbow can be designed to be removable, in which case a plug connection or a screw connection for releasably securing the energy store to the crossbow is expedient. It is particularly advantageous if the energy store is positioned in such a way that, like a rifle butt, it serves as a shoulder rest for the shooter.
    The object according to the invention is also achieved by an above-mentioned crossbow, in which a clamping device described above is arranged on the shaft. The crossbow has, in a manner known per se, a shaft extending in the weft direction inter alia for receiving a projectile, for example an arrow or a round sphere, for example made of steel. In addition, the crossbow has two limbs which are connected rotatably or pivotably connected to the shaft and to which a tendon intended for engagement in the projectile is attached. According to the invention, the crossbow is connected to the tensioning device, wherein the connection can be fixed or detachable, for the possible release of the tensioning device from the shaft of the crossbow. In the case of a detachable connection, the clamping device can be mounted as a retrofit kit on an existing crossbow.
    To make it easier for a shooter to reload the crossbow with projectiles, it can be advantageous if a magazine for projectiles, in particular arrows, is arranged on the shank.
    The invention will be further elucidated below on the basis of preferred, non-limiting exemplary embodiments with reference to the drawings. Show it:
    Figure 1 is a cocked crossbow with a tensioning device according to the invention.
    FIG. 2 shows a detailed view of the tensioning device of the crossbow according to FIG. 1; FIG.
    Fig. 2A is the detail view of Fig. 2, for the purpose of understanding only with a cocked and a relaxed limb;
    3 shows the crossbow of Figure 1 immediately after a firing.
    FIG. 4 shows the crossbow according to FIG. 1 after firing with already relaxed limbs; FIG.
    5 shows the crossbow of FIG. 1 after a firing with relaxed limbs and a string connected to a triggering device; FIG.
    6 shows the crossbow according to FIG. 1 in a tensioned state before firing; FIG.
    Fig. 7 is a perspective view of a crossbow according to the invention;
    8A to 8C, a securing element for a crossbones drive device in three different positions; and
    Fig. 9 is a schematic representation of a tensioning device for a crossbow according to the invention.
    1 shows a crossbow 2 in a stretched state, with a shaft 3 and associated limbs 4, and with a tensioning device 1 according to the invention. The tensioning device 1 can be used as a retrofitting device for crossbows 2 or comparable devices, such as e.g. Spearguns, line throwing devices, toy crossbows, pistol crossbows, bailists, or be integrated into crossbows 2 or similar devices. The tensioning device 1 has a
    Connecting element 5, which is formed for stable, possibly releasable connection, for example, for screwing, with the shaft 3 of the crossbow 2. On the connecting element 5, two fastening devices 6 are arranged, depending on a fastening device 6 per throwing arm 4, with which the limbs 4 are rotatably or pivotally attached to the crossbow 2. In the embodiments shown, the fastening devices 6 are rotatably or pivotally connected to the connecting element 5 by means of pins Bl, about a respective axis of rotation A1 (see FIG. 2A). The limbs 4 are fixedly connected to the fastening devices 6, for example screwed or clamped. Furthermore, the connecting element 5 is connected to two drive devices 7, which are also fastened, for example by means of pins B2, rotatably about an axis of rotation A2 to the rotatable or pivotable fastening devices 6. The drive devices 7 rotate or swivel the limbs 4 from a first position PI, in which the limbs 4 include a first angle α with the shaft 3, into a second position P2 in which the limbs 4 and the shaft 3 have a second angle include a2.
    The positions PI and P2 as well as the first angle a1 and the second angle a2 can be seen in particular in the detailed views in FIGS. 2 and 2A, which show the detail D of FIG. 1 enlarged. The first position PI corresponds to a relaxed position of the limbs 4, in which the tendon 8 connected to the limbs 4 can be fixed quickly and without significant effort by a shooter in a tripping device 19 arranged on the shaft 3. In contrast, the second position P2 corresponds to a tensioned position of the limbs 4, wherein the chord 8 is tensioned. Accordingly, the second angle a2 is greater than the first angle al. In Fig. 2 a relaxed position PI of the left limb 4 is shown by dashed lines for clarity. Fig. 2A also shows, for purposes of understanding only, a left throwing arm 4 in the first position PI and a right throwing arm 4 in the second position P2. In fact, the tensioning device 1 is designed to pivot both limbs 4 symmetrically to the shaft 3.
    1, 2 and 2A, each of the drive devices 7, a lifting device 9 with a hydraulically, electrically or pneumatically displaceable reciprocating piston 10. The reciprocating piston 10 is extendable from the lifting device 9, as shown in the right part of Figure 2A and retractable into the lifting device 9, as shown in the left part of Fig. 2A. In particular, each lifting device 9 or each reciprocating piston 10 is arranged at an acute angle β to an imaginary extension V of the shaft 3, so that the pins B2 or their axes of rotation A2 are arranged particularly close to the pins Bl or their axes of rotation Al to the fastening devices 6 are. In this way, a small change in stroke, which is defined as the difference between the stroke Hl of the retracted reciprocating piston 10 and the stroke H2 of the extended reciprocating piston 10, cause a large difference between the angle α1 and the angle α2. Thus, the crossbow 2 can be stretched particularly quickly. The acute angle β is preferably less than 60 °, especially less than 45 °. The distance X between the pins Bl and B2 or between the axes of rotation Al and A2 may be smaller than the stroke change (H2-H1).
    3 to 6 show four different states of the crossbow 2. In Fig. 3, the crossbow 2 is shown immediately after a firing, wherein the limbs 4 and the tendon 8 are still stretched, i. the limbs 4 are still in the second cocked position P2. Fig. 4 shows the crossbow 2 after a firing with already partially pivoted limbs 4, so that these and the tendon 8 are relaxed. In Fig. 5, the crossbow 2 is shown after a firing with relaxed limbs 4 and a relaxed tendon 8, wherein the tendon 8 is already in engagement with a triggering device 19, which is formed in a conventional manner to the tendon 8 mechanically fix or release. In this state, the limbs 4 are pivoted to the first position PI. Finally, Fig. 6 shows the crossbow 2 in a tensioned condition prior to firing, i. the tendon 8 is still fixed by the triggering device 19 and the limbs 4 are again pivoted to the second position P2.
    7 shows a crossbow 2 in a perspective view with a deactivation device 11 for deactivating the
    Drive device 7, so as to cancel the force exerted by the drive device 7 on the limbs 4 force and the temporarily still strained limbs 4 to turn automatically toward the first position PI and in the first position PI. The deactivating device 11 is triggered either at the end of the firing by the limbs 4 or the tendon 8, or triggered by a shooter by means of a manual actuator 11a. The deactivation device 11 has, for example, an actuating element 12 for a pressure relief of the hydraulically, electrically or pneumatically operated lifting device 9, onto which the chord 8 hits at the end of the firing. The actuating element 12 may be formed by a valve, with which pressure can be released from a pneumatically operated lifting device 9. In Fig. 7, an integrated or replaceable compressed air tank 16 or memory 17 for electrical energy to power the drive device 7 in the form of a shoulder support 18 and a noise insulation 14 on the drive device 7 is also shown. In addition, FIG. 7 shows a securing element 15, which is connected to the drive device 7 via a securing device 15b. The securing device 15b is designed to mechanically fix or release the chord 8 in the triggering device 19 and to activate or deactivate the drive device 7. On the shaft 3, a magazine 22 for projectiles G, in particular arrows Gl or round balls R is arranged.
    8A to 8C show the securing element 15 in three different positions, wherein in the deactivation position S1 of the securing element 15 shown in FIG. 8A the drive device 7 is deactivated by the securing device 15b, in the securing position S2 of the securing element 15 shown in FIG. 8B activated by the securing device 15b, the drive device 7 and the tendon 8 is fixed in the triggering device 19, and in the release position S3 shown in Fig. 8C of the fuse element 15 by the securing device 15b, the drive device 7 is still activated and the tendon 8 for a firing of the triggering device 19 is released.
    9 shows a schematic sectional view of a tensioning device 1 for a crossbow 2, with a restoring spring 13 as part of the drive device 7 for the automatic return of the lifting piston 10 or the limbs 4 (not shown) mounted via the fastening device 6 in the direction of the first one Position PI or in the first position PI. In addition, with the drive device 7, in particular with the lifting device 9, connected fluid channels 20 for supplying and discharging compressed air or a hydraulic fluid are provided. Furthermore, a compressed air tank 16 and a shuttle valve 21, which acts as a drain valve and inlet valve is provided. About the deactivation device 11, the drive device 7 can be deactivated at the end of firing. As shown schematically, a noise insulation 14 may be provided. In the case of an electrically operated drive device 7 instead of the compressed air tank 16, a memory for electrical energy 17, in particular a battery, may be provided (not shown).
    权利要求:
    Claims (15)
    [1]
    Claims:
    1. clamping device (1) for a crossbow (2) or a comparable device with a shaft (3) and associated limbs (4), characterized in that a connecting element (5) is provided, which for connection to the shaft (3 ) of the crossbow (2) is formed and fastening devices (6) for rotatably or pivotally mounting the limbs (4), wherein the connecting element (5) with at least one of the limbs (4) connectable drive device (7) is connected, with which the limbs (4) from a first position (PI), in which the limbs (4) with the shaft (3) include a first angle (al), in a second position (P2), in which the limbs (4) the shaft (3) include a second angle (a2), are rotatable or pivotally transferable, wherein the second angle (a2) is greater than the first angle (al) to the limbs (4) and a chord (8) connected thereto from a relaxed position (PI) to a s ready-to-move, tensioned position (P2) to transfer.
    [2]
    2. Clamping device (1) according to claim 1, characterized in that the fastening devices (6) are rotatably or pivotally connected to the connecting element (5).
    [3]
    3. Clamping device (1) according to claim 2, characterized in that the at least one drive device (7) is arranged on the rotatable or pivotable fastening devices (6).
    [4]
    4. Clamping device (1) according to one of claims 1 to 3, characterized in that the drive device (7) is an electrically operated, a hydraulically operated, a pneumatically operated or operated by a combination thereof drive device (7).
    [5]
    5. Clamping device (1) according to one of claims 1 to 4, characterized in that the drive device (7) has at least one lifting device (9) with a hydraulically, electrically or pneumatically displaceable reciprocating piston (10).
    [6]
    6. Clamping device (1) according to claim 5, characterized in that the drive device (7) in each case one with a limb (4) connectable hydraulically, electrically or pneumatically operated lifting device (9) whose reciprocating piston (10) with an imaginary extension ( V) of the shaft (3) includes an acute angle (β), preferably less than 60 °, particularly preferably less than 45 °.
    [7]
    7. Clamping device (1) according to one of claims 1 to 6, characterized in that the drive device (7) is adapted, after the firing, the limbs (4) from the second position (P2) towards the first position (PI) , preferably in the first position (PI) to transfer.
    [8]
    8. Clamping device (1) according to claim 7, characterized in that the drive device (7) is designed to be deactivated and for deactivation by the limbs (4) or the tendon (8) actuatable deactivation device (11) at the end of firing the strained limbs (4) automatically in the direction of the first position (PI), preferably in the first position (PI) to rotate or pivot.
    [9]
    9. Clamping device (1) according to claim 8, characterized in that the deactivation device (11) has an actuating element (12) for a pressure relief of the hydraulically, electrically or pneumatically operated lifting device (9).
    [10]
    10. Clamping device (1) according to one of claims 7 to 9, characterized in that the drive device (7) at least one return spring (13) for the automatic return of the limbs (4) in the direction of the first position (PI), preferably in the first Position (PI).
    [11]
    11. Clamping device (1) according to one of claims 1 to 10, characterized in that the drive device (7) is provided with a noise insulation (14).
    [12]
    12. Clamping device (1) according to one of claims 1 to 11, characterized in that the drive device (7) with a securing element (15) and this with a securing device (15b) is connected, which securing means (15b) is formed, both the To mechanically fix or release the tendon (8) in a trigger device (19) connected to the shaft (3) and also to activate or deactivate the drive device (7), the securing device (15b) being in a deactivation position (S1) of the securing element (FIG. 15) deactivates the drive device (7), activates the drive device (7) in a securing position (S2) of the securing element (15) and fixes the tendon (8) and in a release position (S3) of the securing element (15) drives the drive device (7). activated and the tendon (8) releases for a firing.
    [13]
    13. Clamping device (1) according to one of claims 4 to 6, characterized in that the drive device (7) for power supply an integrated or replaceable compressed air tank (16) or memory for electrical energy (17) as a shoulder support (18).
    [14]
    14. Crossbow (2) with a shaft extending in the weft direction (3) for receiving a projectile (G), in particular an arrow (GI) or a round ball (R), and with two with the shaft (3) rotatably or pivotally connected Larking arms (4) to which a tendon (8) intended to engage in the projectile (G) is fastened, characterized in that a tensioning device (1) according to one of claims 1 to 13 is arranged on the shaft (3).
    [15]
    15. crossbow (2) according to claim 14, characterized in that on the shaft (3) a magazine (22) for projectiles (G) is arranged.
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    DE1966147A1|1972-03-02|Fixed barrel spring compressed air rifle
    DE939556C|1956-02-23|Spring firearm, especially harpoon gun
    DE152933C|
    DE585847C|1933-10-13|Torpedo launcher
    DE3820120A1|1988-12-29|TOY FIREARMS
    DE100663C|
    DE210537C|
    DE836309C|1952-04-10|Air pistol or air rifle
    DE150574C|
    AT156272B|1939-06-10|Fire regulators for automatic firearms, in particular machine guns.
    DE2237113B2|1980-11-06|Compressed air rifle with double compression stage - has lever system ensuring two stage compression and restoring spring
    DE1553970A1|1970-12-23|Jig, especially for automatic weapons
    DE2263270C3|1976-07-29|Compressed air gun
    同族专利:
    公开号 | 公开日
    WO2018014062A1|2018-01-25|
    US20190128637A1|2019-05-02|
    EP3443289B1|2019-08-28|
    CA3027757A1|2018-01-25|
    CA3027757C|2020-03-10|
    US10323899B2|2019-06-18|
    EP3443289A1|2019-02-20|
    AT518555B1|2017-11-15|
    CN109477705A|2019-03-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3028851A|1960-10-04|1962-04-10|Robert W Drake|Spring operated cross bow|
    DE4337534A1|1993-10-28|1995-05-04|Alexander Traut|Crossbow having a device for rotating disc-shaped projectiles |US11029119B2|2017-07-18|2021-06-08|Krysse As|Archery system, bow and method operable with an energy resource|
    US11226167B2|2019-01-15|2022-01-18|Krysse As|Tension amplifying assembly and method for archery bows|US3913556A|1973-10-19|1975-10-21|James R Palma|Archery bow tensioning device|
    US5445139A|1994-02-07|1995-08-29|Barnett International, Inc.|Hydraulic/pneumatic boost system for archery bow and crossbow|
    US5749348A|1996-02-26|1998-05-12|Oviedo-Reyes; Alfonso|Separating stock hydraulic crossbow|
    US5931145A|1996-12-12|1999-08-03|Oviedo-Reyes; Alfonso|Separating stock hydraulic speargun|
    US5931146A|1997-01-18|1999-08-03|Schrader; Steven E.|Bow tension relieving device|
    ITPR20000035A1|2000-05-30|2001-11-30|Ermanno Malucelli|AUTOMATIC LOADING DEVICE IN THE CROSSBOW FOR HUNTING AND SHOOTING|
    US6868845B1|2003-11-07|2005-03-22|Ralph J. Moore|Automatic loading cross-bow|
    ITRM20080130A1|2008-03-10|2009-09-11|Nec Plus Ultra S R L|DEVICE FOR THE LAUNCH OF DARDS AND OBJECTS TO LAUNCH IN GENERAL.|
    CN103353257B|2013-07-16|2015-12-09|黄刚|Folding laminated bow|
    CN105910491B|2016-05-01|2018-06-19|惠安君献石业有限公司|Compressed gas power brace formula crossbow|NO342025B1|2016-07-15|2018-03-12|Bakke Invest As|Compound bow power assisted draw weight amplifier|
    US10704857B2|2018-02-20|2020-07-07|Mcp Ip, Llc|Archery bow with load balancing limb support|
    NO20200033A1|2019-09-19|2021-03-22|Krysse As|Crossbow energizer|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50658/2016A|AT518555B1|2016-07-20|2016-07-20|Tensioning device for a crossbow and crossbow with such a tensioning device|ATA50658/2016A| AT518555B1|2016-07-20|2016-07-20|Tensioning device for a crossbow and crossbow with such a tensioning device|
    EP17743240.8A| EP3443289B1|2016-07-20|2017-07-20|Tensioning device for a crossbow, and crossbow comprising such a tensioning device|
    PCT/AT2017/060180| WO2018014062A1|2016-07-20|2017-07-20|Tensioning device for a crossbow, and crossbow comprising such a tensioning device|
    CN201780043500.5A| CN109477705A|2016-07-20|2017-07-20|For the tensioning apparatus of crossbow and the crossbow including this tensioning apparatus|
    CA3027757A| CA3027757C|2016-07-20|2017-07-20|Tensioning device for a crossbow, and crossbow comprising such a tensioning device|
    US16/307,834| US10323899B2|2016-07-20|2017-07-20|Tensioning device for a crossbow, and crossbow comprising such a tensioning device|
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