Garden shears with a device for securing and positioning an axle bolt
The garden scissors design secures the axle bolt without gears, reducing complexity and assembly workload, thereby lowering manufacturing costs.
Patent Information
- Application Number
- DE202025100644
- Authority / Receiving Office
- DE · DE
- Patent Type
- Utility models
- Current Assignee / Owner
- Filing Date
- 2025-02-09
- Publication Date
- 2025-04-03
- Estimated Expiration
- 2035-02-28
AI Technical Summary
Conventional garden scissors require additional components like gears to secure the axle bolt, increasing complexity and assembly workload, leading to higher manufacturing costs.
A garden scissors design that secures the axle bolt using a socket and passage holes, combined with a blocking piece and a connecting unit, eliminating the need for gears and simplifying assembly.
The design reduces the number of components and assembly workload, resulting in lower manufacturing costs and improved structural simplicity.
Smart Images
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Abstract
Description
Technical area
[0001] The invention relates to a pair of garden shears with an arrangement for securing and positioning an axle bolt according to the preamble of claim 1. State of the art
[0002] Fig. 8 to Fig. 10 shows a conventional pair of pruning shears 50 comprising a blade 51, a first handle 52, an anvil 53, and a second handle 54. The blade 51 is disposed at one end of the first handle 52 and the anvil 53 is disposed at one end of the second handle 54. The first and second handles 52, 54 are placed one upon another such that they overlap. An axle bolt 55 is inserted through the intersection point and screwed together at its distal end with a nut 56. The first and second handles 52, 54 are pivotally mounted on one another by means of the inserted axle bolt 55. Furthermore, a locking plate 57 is arranged between the nut 56 and the anvil 53, which can be locked by means of a locking piece 58. Thus, the pruning shears 50 can be kept in a closed state when not in use.Furthermore, a gear 59 is arranged on the locking plate 57, which is screwed to the surface of one side of the anvil 53 by means of a screw. Furthermore, an annular toothing 561 is arranged on the nut 56, with which the gear 59 engages. This prevents the nut 56 and the axle bolt 55 from loosening during operation of the pruning shears 50.
[0003] However, the conventional pruning shears of the type mentioned above suffer from the following deficiencies. In the conventional pruning shears 50, the axle bolt 55 and the nut 56 are secured using a gear 59. The additional gear 59 increases the number of components and thus increases the complexity of the structure. Furthermore, the arrangement of the gear 59 results in increased labor for assembling the pruning shears 50, and the manufacturing costs for the pruning shears 50 cannot be reduced due to the increased labor. Object of the invention
[0004] The invention is based on the object of creating a pair of garden shears with an arrangement for securing and positioning an axle bolt, with which the deficiencies mentioned in the prior art are eliminated. Technical solution
[0005] This object is achieved according to the invention by a pair of garden shears with an arrangement for securing and positioning an axle bolt having the features of claim 1. Advantageous embodiments are the subject of the dependent claims.
[0006] The invention provides a pair of pruning shears with an arrangement for securing and positioning an axle bolt, which pair of pruning shears comprises a pruning shear main body, a securing device, an axle bolt, a nut, and at least one connecting unit. The pruning shear main body has a first handle, a second handle, a support plate, a first cutting element, and a second cutting element. The first handle is connected to the support plate, wherein the support plate connected to the first handle protrudes such that the first cutting element can be supported on the support plate.A recess is arranged on the surface of one side of the second handle, and a plug-in section is arranged on the second cutting element, the plug-in section being inserted into the recess, at least one first through-hole and at least one second through-hole being arranged at corresponding locations on the recess and the plug-in section, and an enlarged polygonal hole is arranged on the second handle, which is connected to the distal end of the first through-hole and extends through the surface of the other side of the second handle. A non-circular fastening hole and a through-pin are arranged on the support plate, the fastening hole extending through the support plate.A first axle bore is arranged on the first cutting element and a second axle bore is arranged on the second cutting element, wherein the first and second axle bores each extend through the first and second cutting elements. A through-bore is further arranged on the first cutting element. The safety device is provided with a locking piece and a locking plate, wherein the locking piece is mounted on the surface of one side of the first handle, wherein a third axle bore and a third through-hole are arranged on the locking plate such that the third axle bore and the third through-hole extend through the locking plate. The first cutting element, the second cutting element, and the locking plate lie one on top of the other in sequence.When the through-hole of the support plate is pushed through the through-hole of the first cutting element, the third axle hole is simultaneously directed toward the second axle hole, the first axle hole, and the mounting hole, with the third through-hole corresponding in position to the second through-hole and the first through-hole. The axle pin has a shaft, one end of which is connected to an enlarged locking head and from the other end of which a screwing pin extends. At least one positioning cutting surface is arranged on the circumference of the shaft.If the axle pin is continuously inserted through the third axle hole, the second axle hole, the first axle hole, and the fastening hole such that the shaft remains arranged in the third axle hole, the second axle hole, the first axle hole, and in the fastening hole and the screw pin protrudes from the fastening hole, the axle pin can be screwed together with the nut, wherein the axle pin is secured against loosening under the action of the blocking effect of the at least one positioning cut surface and the fastening hole. The connecting unit comprises a T-nut and a threaded bolt, wherein the T-nut has a polygonal nut main body and a threaded sleeve. The T-nut is inserted into the first, second, and third through-holes such that the threaded sleeve remains arranged in the first, second, and third through-holes.The threaded bolt is then screwed together with the threaded sleeve in such a way that the nut body is firmly clamped in the polygonal hole. This creates a pair of garden shears with an arrangement for securing and positioning an axle bolt.
[0007] The pruning shears according to the invention with an arrangement for securing and positioning an axle bolt are characterized in that the axle bolt and the nut can be secured against loosening without a gear, thereby simplifying the overall structure and reducing the labor required to assemble the pruning shears. Thus, the manufacturing costs for the pruning shears according to the invention can be significantly reduced. Short description of the drawings Fig. 1 shows a perspective view of a preferred embodiment of a garden shears according to the invention with an arrangement for securing and positioning an axle bolt in the assembled state. Fig. 2 shows an exploded view of the garden shears according to the invention in Fig. 1. Fig. 3 shows a schematic representation to illustrate the screwing of a threaded bolt in the garden shears according to the invention. Fig. 4 shows a planar view of the garden shears according to the invention in the assembled state. Fig. 5 shows a sectional view of the garden shears according to the invention in the assembled state. Fig. 6 shows a schematic representation of the garden shears according to the invention in use. Fig. 7 shows a sectional view of the garden shears according to the invention in use. Fig. Figure 8 shows an exploded view of a conventional pair of garden shears. Fig. 9 shows a planar view of the conventional garden shears in Fig. 8 when assembled. Fig. 10 shows a sectional view of the conventional garden shears in Fig. 8 when assembled. Detailed description of a preferred embodiment
[0008] Objects, features, and advantages of the present invention will be explained in more detail below with reference to the detailed description of an embodiment and the accompanying drawings. However, the invention is not limited to the description of this embodiment and its illustration in the accompanying drawings.
[0009] As from Fig. 1 to Fig. As can be seen in Figure 5, the present invention relates to a pair of pruning shears with an arrangement for securing and positioning an axle bolt. The pruning shears comprise a pruning shears main body 10, a securing device 20, an axle bolt 30, a nut 31, and at least one connecting unit 40. The pruning shears main body 10 has a first handle 11, a second handle 12, a support plate 13, a first cutting element 14, and a second cutting element 15. The first handle 11 is connected to the support plate 13, wherein the support plate 13 connected to the first handle 11 protrudes such that the first cutting element 14 can be supported on the support plate 13.A recess 121 is arranged on the surface of one side of the second handle 12, and a plug-in section 151 is arranged on the second cutting element 12, the plug-in section 151 being inserted into the recess 121, at least one first through-hole 122 and at least one second through-hole 152 being arranged at corresponding locations on the recess 121 and the plug-in section 151, and an enlarged polygonal hole 123 being arranged on the second handle 12, which is connected to the distal end of the first through-hole 122 and extends through the surface of the other side of the second handle 12. A non-circular fastening hole 131 and a through-pin 132 are arranged on the support plate 13, the fastening hole 131 extending through the support plate 13.A first axial bore 141 is arranged on the first cutting element 11, and a second axial bore 153 is arranged on the second cutting element 15, wherein the first and second axial bores 141, 153 extend through the first and second cutting elements 14, 15, respectively. A through-bore 142 is further arranged on the first cutting element 14. The securing device 20 is provided with a locking piece 21 and a locking plate 22, wherein the locking piece 21 is mounted on the surface of one side of the first handle 11, wherein a third axial bore 221 and a third through-hole 222 are arranged on the locking plate 22 such that the third axial bore 221 and the third through-hole 222 extend through the locking plate 22. The first cutting element 14, the second cutting element 15 and the locking plate 22 lie one on top of the other.When the through-pin 132 of the support plate 13 is pushed through the through-bore 142 of the first cutting element 14, the third axle bore 221 is simultaneously directed toward the second axle bore 152, the first axle bore 141, and the fastening hole 131, with the third through-hole 222 corresponding in position to the second through-hole 152 and the first through-hole 122. The axle pin 30 has a shaft 301, one end of which adjoins an enlarged locking head 302 and from the other end of which a screw pin 303 extends. At least one positioning cut surface 304 is arranged on the circumference of the shaft 301.If the axle pin 30 is continuously pushed through the third axle hole 221, the second axle hole 153, the first axle hole 141 and the fastening hole 131 such that the shaft 301 remains arranged in the third axle hole 221, the second axle hole 153, the first axle hole 141 and the fastening hole 131 and the screw pin 303 protrudes from the fastening hole 131, the axle pin 30 can be screwed together with the nut 31, wherein the axle pin 30 is secured against loosening under the action of the blocking by the at least one positioning cut surface 304 and the fastening hole 131. The connecting unit 40 comprises a T-nut 41 and a threaded bolt 42, wherein the T-nut 41 has a polygonal nut main body 411 and a threaded sleeve 412.The T-nut 41 is inserted into the first, second, and third through-holes 122, 152, 222 such that the threaded sleeve 412 remains positioned in the first, second, and third through-holes 122, 152, 222. The threaded bolt 42 is then screwed together with the threaded sleeve 412 such that the nut main body 411 is firmly clamped in the polygonal hole 123.
[0010] According to the invention, an elastic element 16 is arranged between the first handle 11 and the second handle 12, which elastic element is supported on the first and second handles 11, 12.
[0011] According to the invention, the second handle 12 is provided with two first through-holes 122 and the second cutting element 15 with two second through-holes 152, wherein the locking plate 22 is connected to the one first through-hole 122 and the one second through-hole 152, while the other first through-hole 122 and the other second through-hole 152 are screwed directly together with the connecting unit 40.
[0012] According to the invention, the first cutting element 14 is a blade and the second cutting element 15 is an anvil.
[0013] According to the invention, the fastening hole 131 is designed in the form of a capsule and two positioning cut surfaces 304 are arranged on the shaft 301, wherein the fastening hole 131 is blocked by the two positioning cut surfaces 304.
[0014] According to the invention, the polygonal hole 123 and the nut main body 411 are both hexagonally profiled in such a way that the polygonal hole 123 and the nut main body 411 fit together in terms of profile.
[0015] To use the pruning shears according to the invention, one hand of the user grasps the first and second handles 11, 12 and exerts a force on these two handles 11, 12 such that the pruning shears main body 10 is opened and closed with the pivot pin 30 as the axis. By repeatedly opening and closing the pruning shears main body 10, the cutting work is performed. During the cutting process, the pivot pin 30 is always blocked by the mounting hole 131 such that the pivot pin 30 moves over the support plate 13 synchronously with the first handle 11 and the first cutting element 14 (see Fig.7). This secures the axle pin 30 against loosening and backing off during the cutting process. Because the T-nut 41 remains clamped in the polygonal hole 123, the locking plate 22 and the second cutting element 15 can be blocked by the T-nut 41. Thus, the axle pin 30, the nut 31, the first cutting element 14, the second cutting element 15, and the locking plate 22 are more firmly fixed and secured against loosening.
[0016] The pruning shears according to the invention with an arrangement for securing and positioning an axle bolt are characterized in that the axle bolt 30 and the nut 31 can be secured against loosening without a gear, thereby simplifying the overall structure and reducing the labor required to assemble the pruning shears. Thus, the manufacturing costs for the pruning shears according to the invention can be significantly reduced.
[0017] Although the present invention has been described in detail using an exemplary embodiment, it will be understood by those skilled in the art that the invention is not limited to this exemplary embodiment. Rather, modifications are possible such that individual features can be omitted or other combinations of features can be implemented, as long as the scope of the appended claims is not exceeded. The disclosure of the present invention includes all combinations of the individual features presented. List of reference symbols 10 garden shears main body 11 first grip 12 second handle 121 recess 122 first through hole 123 polygonal hole 13 Support plate 131 Mounting hole 132 through pins 14 first cutting element 141 first axle hole 142 through hole 15 second cutting element 151 plug-in section 152 second through hole 153 second axle hole 16 elastic element 20 Safety device 21 locking piece 22 Locking plate 221 third axle hole 222 third through hole 30 axle bolts 301 shaft 302 locking head 303 screw connection pin 304 Positioning interface 31 mother 40 connection unit 41 T-nut 411 Mother main body 412 threaded sleeve 42 threaded bolts
Claims
[1] Pruning shears with an arrangement for securing and positioning an axle bolt, comprising a pruning shears main body (10), a securing device (20), an axle bolt (30), a nut (31) and at least one connecting unit (40), characterized bythat the garden shears main body (10) has a first handle (11), a second handle (12), a support plate (13), a first cutting element (14) and a second cutting element (15), wherein the first handle (11) is connected to the support plate (13), wherein the support plate (13) connected to the first handle (11) protrudes such that the first cutting element (14) can be supported on the support plate (13), wherein a recess (121) is arranged on the surface of one side of the second handle (12) and a plug-in section (151) is arranged on the second cutting element (12), wherein the plug-in section (151) is inserted into the recess (121), wherein at corresponding locations on the recess (121) and the plug-in section (151) there are respectively at least one first through-hole (122) and at least one second through-hole (152) are arranged, wherein an enlarged polygonal hole (123) is arranged on the second handle (12),which is connected to the distal end of the first through-hole (122) and extends through the surface of the other side of the second handle (12), wherein a non-circular fastening hole (131) and a through-pin (132) are arranged on the support plate (13), wherein the fastening hole (131) extends through the support plate (13), wherein a first axial bore (141) is arranged on the first cutting element (11) and a second axial bore (153) is arranged on the second cutting element (15), wherein the first and the second axial bores (141, 153) each extend through the first and the second cutting element (14, 15), wherein a through-bore (142) is further arranged on the first cutting element (14); that the safety device (20) is provided with a locking piece (21) and a locking plate (22), wherein the locking piece (21) is mounted on the surface of one side of the first handle (11),wherein a third axle bore (221) and a third through-hole (222) are arranged on the locking plate (22) such that the third axle bore (221) and the third through-hole (222) extend through the locking plate (22), wherein the first cutting element (14), the second cutting element (15), and the locking plate (22) lie one on top of the other in sequence, wherein by inserting the through-pin (132) of the support plate (13) through the through-hole (142) of the first cutting element (14), the third axle bore 221 is simultaneously directed towards the second axle bore (152), the first axle bore (141), and the fastening hole (131), wherein the third through-hole (222) corresponds to the second through-hole (152) and the first through-hole (122) in terms of position;, that the axle journal (30) has a shaft (301), one end of which adjoins an enlarged locking head (302) and from the other end of which a screwing pin (303) extends, wherein at least one positioning cut surface (304) is arranged on the circumference of the shaft (301), wherein when the axle journal (30) is continuously pushed through the third axle bore (221), the second axle bore (153), the first axle bore (141) and the fastening hole (131), the shaft (301) remains arranged in the third axle bore (221), the second axle bore (153), the first axle bore (141) and the fastening hole (131) and the screwing pin (303) protrudes from the fastening hole (131), so that the axle journal (30) with the nut (31) can be screwed together, wherein the axle pin (30) is secured against loosening under the action of the blocking by the at least one positioning cut surface (304) and the fastening hole (131); and that the connecting unit (40) comprises a T-nut (41) and a threaded bolt (42), wherein the T-nut (41) has a polygonal nut main body (411) and a threaded sleeve (412), wherein the T-nut (41) is inserted into the first, second and third through-holes (122, 152, 222) in such a way that the threaded sleeve (412) remains arranged in the first, second and third through-holes (122, 152, 222), wherein the threaded bolt (42) is then screwed together with the threaded sleeve (412) in such a way that the nut main body (411) is firmly clamped in the polygonal hole (123). [2] Garden shears according to claim 1, characterized by that an elastic element (16) is arranged between the first handle (11) and the second handle (12), which elastic element is supported on the first and the second handle (11, 12). [3] Garden shears according to claim 1, characterized byin that the second handle (12) is provided with two first through-holes (122) and the second cutting element (15) is provided with two second through-holes (152), wherein the locking plate (22) is connected to the one first through-hole (122) and the one second through-hole (152), while the other first through-hole (122) and the other second through-hole (152) are screwed directly together with the connecting unit (40). [4] Garden shears according to claim 1, characterized by that the first cutting element (14) is a blade and the second cutting element (15) is an anvil. [5] Garden shears according to claim 1, characterized by that the fastening hole (131) is designed in the form of a capsule and two positioning cut surfaces (304) are arranged on the shaft (301), wherein the fastening hole (131) is blocked by the two positioning cut surfaces (304). [6] Garden shears according to claim 1, characterized bythat the polygonal hole (123) and the nut main body (411) are both hexagonally profiled in such a way that the polygonal hole (123) and the nut main body (411) fit together in terms of profile.