Arrow magazine changing device

Abstract

Arrow magazine changing device attachable to an arrow receptacle (200) of a crossbow stock (100) comprising: a frame (1) attachable to the arrow receptacle (200) of the crossbow stock (100) and hollowed out from one side to the other to form an installation area (10); and an arrow magazine body (2) movably mountable and dismountable in the installation area (10); wherein the movable mounting of the arrow magazine body (2) on the frame and the dismounting of the arrow magazine body (2) from the frame (1) eliminates the need for additional tools for assembly and disassembly, thus allowing the arrow magazine body (2) to be quickly replaced and reducing the replacement time, thereby maintaining stability and accuracy during shooting.

Description

The present invention relates to the technical field of shooting and, in particular, to an arrow magazine changing device. Its main purpose is to enable the user to quickly replace the original arrow magazine with the next arrow magazine filled with arrows after all the arrows in it have been fired, so that continuous shooting can be resumed in the shortest possible time in order to maintain optimal condition and stability during shooting. Nowadays, there are arrow magazines on the market that can hold multiple arrows and can be attached to the crossbow, such as the "Arrow Magazine Device for Positioning Arrows" known from Taiwanese patent TW I778575 B and the "Arrow Device for Crossbows" known from Taiwanese patent TW I738463 B. Such arrow magazine devices can hold even more arrows, allowing the user to maintain a more stable position during continuous shooting. However, these arrow magazine devices have a disadvantage: the number of arrows that can be held in the magazine is still limited. After all the arrows in the magazine have been fired, the user must spend time and effort removing the magazine and reloading it. Once the arrows are refilled, the user must reattach the magazine to the crossbow.This method still requires time to reload the arrow bodies and attach the magazine, which can easily affect the user's shooting stability and accuracy. If the magazine is not properly attached, it can affect the arrow body's drop position, leading to problems such as a change in range after the user has fired an arrow. Therefore, the industry needs to consider how to solve these issues. AT 526 686 A4 discloses a crossbow with a base body and a magazine receptacle on the top of the base body, creating a receptacle for a magazine which can be removed from the crossbow and pulled upwards in a few steps by actuating a locking lever. The CN 111 664 744 A reveals a multifunctional manual crossbow with a crossbow body, a pressure plate, two bow sections and a detachable magazine for holding multiple arrows. The object of the invention is to enable the user to change an arrow magazine in the shortest and fastest way possible for continuous shooting. Advantageously, no additional tools are required for disassembling and replacing an arrow magazine, but only simple pushing, flipping, and pulling, which significantly reduces the changeover time. Furthermore, the user can maintain optimal shooting conditions and continue shooting during the arrow magazine change, thus preserving accuracy and stability. To solve the above-mentioned problem, the present invention provides an arrow magazine changing device according to the independent claim. Preferred embodiments of the invention are the subject of the dependent claims. Fig. 1 shows a schematic perspective view in which the present invention is applied to a crossbow stock; Fig. 1A shows a schematic perspective view according to Fig. 1 from a different perspective; Fig. 2 shows a schematic perspective exploded view of the present invention and the crossbow stock; Fig. 3 shows a schematic partial exploded view according to Fig. 2; Fig. 4 shows a schematic perspective view of the frame according to the present invention from a different perspective; Fig. 5 shows a schematic perspective view of the arrow magazine body according to the present invention from a different perspective; Fig. 6 shows a schematic partial sectional view along section line VI-VI according to Fig. 1; Fig. 7 shows a schematic sectional view along section line VII-VII according to Fig. 1; Fig.Figure 7A shows a schematic enlarged partial view according to Figure 7; Figures 8 and 9 show schematic views of the successive acts by which the arrow magazine body according to Figure 7 is disassembled; Figure 10 shows a schematic view of the state of use according to Figure 6, in which several arrow bodies are filled into the arrow receiving recess of the arrow magazine body; Figure 11 shows a schematic sectional view along section line XI-XI according to Figure 1. Reference is made to Figures 1, 1A to 10. The arrow magazine changing device according to the invention is mainly attached to the arrow receptacle 200 of a crossbow stock 100 and comprises the following: a frame 1, which is U-shaped, attachable to the arrow receptacle 200 of the crossbow stock 100 and hollowed out from one side to the other to form an installation area 10; and an arrow magazine body 2, which can be movably mounted and dismounted in the installation area 10. Due to the movable mounting and dismounting of the arrow magazine body 2 on and from the frame 1, there is no need to use additional tools for mounting and dismounting, which allows the arrow magazine body 2 to be quickly replaced and reduces the replacement time, thus maintaining stability and accuracy during shooting. Based on the description above, the user can prepare several arrow magazine bodies 2 in advance, each filled with several arrow bodies 300, and insert one of the arrow magazine bodies 2 into the mounting area 10 to initiate continuous firing. After all the arrow bodies 300 in the arrow magazine body 2, which is housed in the mounting area 10, have been fired, the user can apply an external force (by pushing, flipping, pulling, striking, etc.; the method is not restricted) to the arrow magazine body 2 to release the connection between the arrow magazine body 2 and the frame 1. Another arrow magazine body 2 filled with arrow bodies 300 is then inserted into the mounting area 10 to continue firing. No additional hand tools or special tools are required for disassembly and assembly during the entire process.With its simple and easy-to-use operation, an arrow magazine body 2 can be quickly inserted and mounted in the mounting area 10 of the frame 1. The replacement process is quick (with practice, disassembly and assembly can even be completed in seconds). The user can disassemble, assemble, and replace the arrow magazine body 2 while in the shooting position, ensuring that the magazine body 2 remains stable after the previous shooting phase and thus maintains its stability. Furthermore, shooting accuracy can be maintained without excessive deviation. Based on the above description, the technical features and further details of the present invention are described in more detail below. Reference is made to Figures 3 and 4. In order to enable the arrow magazine bodies 2 to be reliably mounted on the crossbow stock 100 and the arrow bodies 300 to fall stably onto the arrow receptacle 200 for firing, the frame 1 in the present invention has a front end 11 and a rear end 12, with the installation area 10 being located between the front end 11 and the rear end 12.The front end 11 has a front projecting block 111, a lower stop 112 located in the installation area 10 and connected to the front projecting block 111, and a positioning clamping block 113 located in the installation area 10 and connected to the front projecting block 111 and the lower stop 112, wherein the positioning clamping block 113 is provided with a transverse positioning notch 114, the positioning notch 114 being continuously connected to the installation area 10, and an engagement recess 13 is formed on each of two side faces of the lower stop 112 and combined with the multiple ribs 400 of the arrow-receiving section 200, wherein a locking bolt 500 is inserted and the assembly is thus completed. In this way, the frame 1 can initially be firmly attached to the arrow-receiving section 200 of the crossbow stock 100 so that the arrow magazine body 2 can be removed from the orThe crossbow stock can be quickly disassembled and assembled 100 times. Continuing the description from the previous paragraph, the replacement of the arrow magazine body 2 on the frame 1 is explained after the frame 1 has been attached to the crossbow stock 100. Reference is first made to Figures 3, 6, and 9, which illustrate the disassembly process. When the multiple arrow bodies 300 contained in an arrow magazine body 2 have been completely fired, this arrow magazine body 2 must be replaced. To enable the user to quickly replace this arrow magazine body 2, the present invention further provides an inner installation space 115 in the forward projecting block 111 of the front end 11, wherein the inner installation space 115 is provided with an opening 116 that is continuously connected to the positioning notch 114. Furthermore, an elastic assembly 3 is provided,Part of the elastic assembly 3 is located within the inner installation space 115, and another part protrudes from the opening 116 and is situated at the positioning notch 114, the part of the elastic assembly 3 protruding from the opening 116 being movably abutting the arrow magazine body 2. In the present invention, an arrow magazine body 2 is positioned in the installation area 10 by the elasticity of the elastic assembly 3, allowing the arrow bodies 300 to fall precisely onto the arrow receiving section 200 and await their release. The elastic assembly 3 further comprises an elastic element 31 and a pressure-stop element 32, wherein the pressure-stop element 32 has a large-diameter segment 321 located in the inner installation space 115 and a long-rod segment 322 connected to the large-diameter segment 321, the large-diameter segment 321 being bounded and able to slide within the inner installation space 115.One end of the long rod segment 322 is connected to the large-diameter segment 321, the other end of the long rod segment 322 protrudes from the opening 116 and is located at the positioning notch 114 and rests movably against the arrow magazine body 2, one end of the large-diameter segment 321 is connected to the long rod segment 322, the other end of the large-diameter segment 321 is recessed to form a depression 323, one end of the elastic element 31 springs against the depression 323 and the other end of the elastic element 31 against the inner wall of the inner installation space 115, and the long rod segment 322 of the elastic element 31, which springs against the pressure-stop element 32, rests movably against the arrow magazine body 2. In this way, when the user disassembles an arrow magazine body 2,First, the user pushes it towards the elastic assembly 3 (in the sliding direction indicated by the arrow in Fig. 8; for assembly, it pushes in the opposite direction), thereby initially releasing the engagement parts between the arrow magazine body 2 and the frame 1, while simultaneously pressing the long rod segment 322 to indirectly cause the elastic element 31 to be compressed, thus accumulating an elastic force. At this point, the user can release the connection between the arrow magazine body 2 and the frame 1 (the arrow in Fig. 9 shows the removal direction; the opposite direction is the assembly direction). Conversely, if the user wishes to insert an arrow magazine body 2 into the installation area 10,He only needs to insert one end of the arrow magazine body 2 into the installation area 10 and press the part of the long rod segment 322 protruding from the positioning cut 114 to drive the large-diameter segment 321, whereby the large-diameter segment 321, by driving it, compresses the elastic element 31, so that the arrow magazine body 2 is pre-inserted into the installation area 10 and the long rod segment 322 is indirectly driven by the elastic return of the elastic element 31 in such a way that it is pressed against the arrow magazine body 2, so that the arrow magazine body 2 can be stably accommodated in the installation area 10. The aforementioned disassembly and positioning of the arrow magazine bodies 2 depends primarily on the arrangement of the arrow magazine bodies 2. Regarding the configuration of an arrow magazine body 2, one end of an arrow magazine body 2 is provided with an arcuate stop 21 corresponding to the front projecting block 111, and with a switching block 22 corresponding to the rear end 12. When an arrow magazine body 2 is inserted into the installation area 10, the portion of the long rod segment 322 of the elastic assembly 3 protruding from the opening 116 rests against the arcuate stop 21. The long rod segment 322 is indirectly pressed against the arcuate stop 21 by the elastic force of the elastic element 31 to position an arrow magazine body 2 in the installation area 10. Furthermore, an actuation space A is provided between the switching block 22 and the installation area 10 of the rear end 12.When the arrow bodies 300 are completely emptied and an arrow magazine body 2 needs to be replaced by the next arrow magazine body, the user can place part of their hand in the actuation area A and exert an external force on the switching block 22 of this arrow magazine body 2 (first push and then flip). In this way, arrow magazine bodies 2 can be removed from the frame, see Fig. 1, Fig. 8 and Fig. 9. Reference is made to Figures 4, 7, and 9. To prevent jamming during the disassembly and assembly of the arrow magazine bodies 2, the arc-shaped stop 21 further comprises a concave surface 211, wherein the concave surface 211 has a low concave region 211A and two high end regions 211B located at opposite ends of the low concave region 211A (see Figure 7A). The two high end regions 211B are located closer to the forward projecting block 111 than the low concave region 211A, and one end of the long bar segment 322 of the elastic assembly 3 rests movably against the low concave region 211A. In addition, the corners of the section of the long bar segment 322 of the elastic assembly 3 resting against the low concave region 211A are rounded.Because the long rod segment 322, due to the positioning limitations of the high end sections 211B located at both ends, can only rest against the low concave section 211A, the arrow bodies 300 contained in an arrow magazine body 2 fall precisely onto the arrow receiving section 200. The rounded corners allow the arc-shaped stop 21 to be gently removed along the angle of the rounded corners when disassembling an arrow magazine body 2, without the long rod segment 322 and the arc-shaped stop 21 interfering with each other and making disassembly easy. The same applies to inserting an arrow magazine body 2 into the installation area 10. The user first uses the arc-shaped stop 21 to press the long rod segment 322 against it, thereby compressing the elastic element 31, and then moves it towards the installation area 10.At this point, the rounded corners of the long rod segment 322 are in a position that matches the curvature of the arc-shaped stop 21, so that an arrow magazine body 2 can be moved easily and finally stably inserted and positioned in the installation area 10. The positioning between an arrow magazine body 2 and the frame 1 was described in the preceding paragraph. In addition to using the elastic force of the elastic element 31 to control the positioning of the long rod segment 322 against the arc-shaped stop 21 of the arrow magazine body 2, the rear end 12 of the arrow magazine body 2 must interact with the frame 1 for limiting purposes. Reference is made to Figures 4, 5, 6, 7, 8 to 9. Therefore, the rear end of the frame 1 also has a rear locking recess 14, with a limiting projection 23 protruding from the underside of the switching block 22 corresponding to the rear locking recess 14. If the user wishes to disassemble an arrow magazine body 2, he must push the arrow magazine body 2 towards the front end 11 to release the limiting projection 23 from the rear detent recess 14, then he can pivot the arrow magazine body 2 to one side of the frame 1.In this way, an arrow magazine body 2 can be separated from the mounting area 10 of the frame 1. The same applies to the mounting of an arrow magazine body 2. After an arrow magazine body 2 has been inserted into the mounting area 10, the elastic force of the elastic element 31 indirectly pushes the arrow magazine body 2 towards the rear end 12, thereby engaging the limiting projection 23 in the rear locking recess 14. Together with the elastic support of the elastic element 31, the arrow magazine body 2 can be stably accommodated in the mounting area 10 of the frame 1. The commercially available arrow bodies 300 come in various sizes. Besides length, there are also differences in the thickness of the arrow shafts. Reference is made to Figures 5, 10, and 11. To allow the use of different arrow bodies 300, arrow magazine bodies 2, and crossbow stocks 100 in combination, the base of an arrow magazine body 2 is further provided with several projecting limiting ribs 24. Two limiting plates 4 are also attached to the underside of the arrow magazine body 2 and arranged at intervals, thus preventing the falling arrow bodies 300 from being blocked.Corresponding to the arrangement of the limiting ribs 24, each limiting plate 4 is provided with several locking grooves 41, the number of which corresponds to the number of limiting ribs. A portion of the locking grooves 41 is provided with a sliding opening 42 at the corresponding end, and the limiting ribs 24 of the arrow magazine body 2 are slidably arranged in the corresponding locking grooves 41. The user can adjust the positions of the limiting plates 4 in the arrow magazine body 2 and the distance between the two limiting plates 4 according to the thickness of the arrow shaft of an arrow body 300, so that the arrow bodies 300 can fall easily onto the arrow receiving section 200, and furthermore to prevent the arrow bodies 300 from rotating and thus causing all arrow bodies 300 to fall onto the arrow receiving section 200 at once. In the present invention, an arrow magazine body 2 is further provided with an arrow receiving recess 25, which extends from the top to the bottom of the arrow magazine body 2. The arrow receiving recess 25 is continuously connected to the arrow receiving section 200 of the crossbow stock 100, with a spring-loaded pusher 5 arranged in the arrow receiving recess 25, the arrow receiving recess 25 being filled with several stacked arrow bodies 300, one end of the spring-loaded pusher 5 elastically bearing against the uppermost arrow body 300 arranged in the arrow receiving recess 25, and the several arrow bodies 300 being elastically pressed by the spring-loaded pusher 5 and falling one after the other onto the arrow receiving section 200 for firing. After an arrow magazine body 2 has been movably inserted into the installation area 10, a firing chamber B is formed between it and the arrow receiving section 200.The bowstring 601 of the bowstring assembly 600 of the crossbow stock 100 is located in the firing chamber B. The bowstring 601 is moved elastically in the firing chamber B and fires the arrow body 300 falling from the arrow receptacle 25 into the arrow receptacle section 200. Reference symbol list 100 Crossbow stock 200 Arrow receptacle section 300 Arrow body 400 Rib 500 Locking bolt 600 Bowstring assembly 601 Bowstring 1 Frame 10 Installation area 11 Front end 111 Front projecting block 112 Lower stop 113 Positioning clamp block 114 Positioning notch 115 Inner installation space 116 Opening 12 Rear end 13 Engagement recess 14 Rear detent recess 2 Arrow magazine body 21 Arc stop 211 Concave surface 211A Low concave area 211B High end area 22 Switching block 23 Limiting projection 24 Limiting rib 25 Arrow receptacle recess 3 Elastic assembly 31 Elastic element 32 Push-stop element 321 Large diameter segment 322 Long bar segment 323 Recess 4 Limiting plate 41 Locking groove 42 Sliding opening 5 Spring push piece A Actuating chamber B Firing chamber

Claims

Arrow magazine changing device attachable to an arrow receptacle (200) of a crossbow stock (100) comprising: a frame (1) attachable to the arrow receptacle (200) of the crossbow stock (100) and hollowed out from one side to the other to form an installation area (10); and an arrow magazine body (2) movably mountable and dismountable in the installation area (10); wherein the movable mounting of the arrow magazine body (2) on the frame and the dismounting of the arrow magazine body (2) from the frame (1) eliminates the need for additional tools for assembly and disassembly, thus allowing the arrow magazine body (2) to be quickly replaced and reducing the replacement time, thereby maintaining stability and accuracy during shooting. Arrow magazine changing device according to claim 1, wherein the frame (1) has a front end (11) and a rear end (12), wherein the installation area (10) is located between the front end (11) and the rear end (12) and the front end (11) is provided with an elastic assembly (3), wherein, when the arrow magazine body (2) is movably inserted into the installation area (10), the elastic assembly (3) bears elastically against the arrow magazine body (2) and is positioned in the installation area (10). Arrow magazine changing device according to claim 2, wherein one end of the arrow magazine body (2) is provided with an arcuate stop (21) corresponding to the front end (11) and with a switching block (22) corresponding to the rear end (12), wherein, when the arrow magazine body (2) is inserted into the installation area (10), the elastic assembly (3) rests against the arcuate stop (21), wherein an actuation chamber (A) is provided between the switching block (22) and the installation area (10) of the rear end (12), wherein by applying an external force to the arrow magazine body (2) from the actuation chamber (A) the arrow magazine body (2) can be removed from the frame (1). Arrow magazine changing device according to claim 3, wherein the arc-shaped stop (21) further comprises a concave surface (211), the concave surface (211) having a low concave region (211A) and two high end regions (211B) located at two ends of the low concave region (211A), the two high end regions (211B) being closer to the front projecting block (111) than the low concave region (211A), the elastic assembly (3) being movably abutting the low concave region (211A) and furthermore the corners of the section of the elastic assembly (3) abutting the low concave region (211A) are rounded. Arrow magazine changing device according to one of claims 2 to 4, wherein the front end (11) further comprises a front projecting block (111), a lower stop (112) located in the installation area (10) and connected to the front projecting block (111), and a positioning clamping block (113) located in the installation area (10) and connected to the front projecting block (111) and the lower stop (112), wherein the positioning clamping block (113) is provided with a transverse positioning notch (114). Arrow magazine changing device according to claim 5, in which an engagement recess (13) is formed on two side surfaces of the lower stop (112) and is combined with several ribs (400) of the arrow receiving section (200), wherein a locking bolt (500) is inserted and thus an assembly is completed. Arrow magazine changing device according to claim 5 or 6, in which furthermore an inner installation space (115) is provided in the front projecting block (111) of the front end (11) and the inner installation space (115) is provided with an opening (116) continuously connected to the positioning notch (114); wherein a part of the elastic assembly (3) is located inside the inner installation space (115), another part of the elastic assembly (3) protrudes from the opening (116) and is located at the positioning notch (114) and the part of the elastic assembly (3) protruding from the opening (116) movably rests against the arrow magazine body (2). Arrow magazine changing device according to claim 7, wherein the elastic assembly (3) further comprises an elastic element (31) and a push-stop element (32), the push-stop element (32) having a large-diameter segment (321) located in the inner installation space (115) and a long-rod segment (322) connected to the large-diameter segment (321), the large-diameter segment (321) being bounded and able to slide within the inner installation space (115), one end of the long-rod segment (322) being connected to the large-diameter segment (321), the other end of the long-rod segment (322) projecting from the opening (116) and being located at the positioning notch (114) and movably bearing against the arrow magazine body (2), one end of the large-diameter segment (321) being connected to the long-rod segment (322), the other end of the Large diameter segments (321) are recessed,one end of the elastic element (31) springs against the recess (323) and the other end of the elastic element (31) against an inner wall of the inner installation space (115), and the long rod segment (322) of the elastic element (31), which springs against the pressure-stop element (32), rests movably against the arrow magazine body (2). Arrow magazine changing device according to claim 3 or 4 or one of the alternatives of claims 5 to 8, which refer back to claim 3, wherein the rear end (12) further comprises a rear locking recess (14), wherein, corresponding to the rear locking recess (14), a limiting projection (23) protrudes from a bottom side of the switching block (22); wherein, after the arrow magazine body (2) has been inserted into the installation area (10), the limiting projection (23) is engaged in the rear locking recess (14). Arrow magazine changing device according to one of the preceding claims, wherein the arrow magazine body (2) is further provided with an arrow receiving recess (25) extending from a top to the bottom of the arrow magazine body (2), wherein the arrow receiving recess (25) is continuously connected to the arrow receiving section (200) of the crossbow stock (100), a spring pusher (5) is arranged in the arrow receiving recess (25), the arrow receiving recess (25) is filled with several stacked arrow bodies (300), one end of the spring pusher (5) elastically rests against the uppermost arrow body (300) arranged in the arrow receiving recess (25), and the several arrow bodies (300) are elastically pressed by the spring pusher (5) and fall one after the other onto the arrow receiving section (200) for firing. Arrow magazine changing device according to claim 10, wherein a base of the arrow magazine body (2) is further provided with several projecting limiting ribs (24), and furthermore two limiting plates (4) are attached to the underside of the arrow magazine body (2) and arranged at intervals and thereby do not block a continuous connection between the arrow receiving recess (25) and the arrow receiving section (200); wherein, corresponding to the arrangement of the limiting ribs (24), each limiting plate (4) is provided with several locking grooves (41), the number of which corresponds to the number of limiting ribs, a portion of the locking grooves (41) at the corresponding end is each provided with a sliding opening (42), and the limiting ribs (24) of the arrow magazine body (2) are arranged to slide in the corresponding locking grooves (41). Arrow magazine changing device according to claim 10 or 11, in which, after the arrow magazine body (2) has been movably inserted into the installation area (10), a firing chamber (B) is formed between it and the arrow receiving section (200), wherein furthermore a bowstring (601) of a bowstring assembly (600) of the crossbow stock (100) is located in the firing chamber (B) and the bowstring (601) is moved elastically in the firing chamber (B) and fires the arrow body (300) falling from the arrow receiving recess (25) into the arrow receiving section (200).

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