Garden shears with adjustable opening width
The adjustable opening garden shears address the fixed-width limitation of conventional shears by allowing customizable blade separation, enhancing versatility and reducing costs through a single tool for various branch thicknesses.
Patent Information
- Application Number
- DE202025106671
- Authority / Receiving Office
- DE · DE
- Patent Type
- Utility models
- Current Assignee / Owner
- Filing Date
- 2025-11-04
- Publication Date
- 2025-12-31
- Estimated Expiration
- 2035-11-30
AI Technical Summary
Conventional garden shears have a fixed opening width, limiting their ability to cut thicker branches and requiring multiple pairs for varying branch thicknesses, increasing purchase costs and storage needs.
Garden shears with an adjustable opening width, featuring an adjustment unit with an adjusting ring, locking pin, and safety device, allowing for customizable blade separation based on branch thickness.
Enables cutting of branches of different thicknesses without needing multiple shears, reducing acquisition costs and storage space, and ensuring safe operation.
Smart Images
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Abstract
Description
Technical field
[0001] The invention relates to garden shears with adjustable opening width, in particular garden shears in which the user can adjust the opening width of the cutting parts himself. State of the art
[0002] A conventional pair of garden shears has two blades. A handle is mounted at the rear end of each blade, and a through-hole is located in the middle section of the handle. A screw is inserted through both through-holes in the blades and then tightened with a nut to fix the two blades in a position where they can rotate relative to each other. When force is applied to the handles, the blades, with the through-holes acting as an axis, are opened and closed to perform cutting tasks.
[0003] However, conventional garden shears of the type mentioned above have the following shortcomings. The opening width of the spread blades is fixed and not adjustable, meaning that the shears can only cut thicker branches with considerable effort, or may not be able to cut them at all. Due to the limited applicability of conventional garden shears, several pairs of shears must be purchased or made available for branches of varying thicknesses, resulting in more work and higher purchase costs. Object of the invention
[0004] The invention is based on the objective of providing garden shears with an adjustable opening width, which eliminates the shortcomings mentioned in the prior art. Technical solution
[0005] This problem is solved according to the invention by a garden shear with an adjustable opening width having the features of claim 1. Advantageous embodiments are the subject of the dependent claims.
[0006] The invention provides garden shears with an adjustable opening width, comprising a first cutting body, a second cutting body, an adjustment unit, and a safety device. The first cutting body has a first cutting section and a first extension section, wherein the first cutting section and the first extension section are connected to each other, the first extension section being encased by a first handle, a first disc being arranged on the first handle such that it projects beyond the first handle, a first axial bore and a notch being arranged on both the first disc and the first cutting section, and a first arcuate receptacle and a second arcuate receptacle being arranged on the first cutting section.wherein the first and second receptacles are connected to each other and the second receptacle is shorter than the first receptacle. The second cutting body has a second cutting part and a second extension section, wherein the second cutting part and the second extension section are connected to each other, wherein the end section of the second cutting part and the second extension section are encased by a second handle, wherein a second disc is arranged on the second handle such that it projects beyond the second handle, wherein a second axial bore and an opening are arranged on both the second disc and the second cutting part, wherein a first channel is arranged on the end section of the second cutting part and a second channel is arranged on the second handle, wherein an elongated hole is arranged on the second cutting part, which is located next to the opening.The second disc has an arc-shaped opening located next to the second axle bore, designed such that the side of the arc-shaped opening facing the second axle bore widens stepwise from one end to the other, with a larger first receiving space and a smaller second receiving space being formed at each end of the arc-shaped opening. The adjusting unit comprises an adjusting ring, a locking pin, an axle journal, and a screw element, the adjusting ring being designed such that a switch projects beyond the adjusting ring and an arc-shaped section protrudes from the inside of the adjusting ring, the arc-shaped section having an arc-shaped recess into which one end of the locking pin can be inserted. The adjusting ring is placed onto the second disc in such a way thatthat the arc-shaped piece is positioned in the first receiving chamber. This allows the other end of the locking pin to be guided simultaneously into the elongated hole and the first receiving chamber. By guiding the axle pin into the first axle bores, the opening, the second axle bore, and the adjusting ring, and screwing it together with the screw element, the first and second cutting bodies are easily connected. The switch rotates the adjusting ring to set the opening width of the first and second cutting parts. The safety device has two sliding buttons that are pressed against each other and screwed together by means of a screw, with a limiting bolt positioned between the two sliding buttons.which successively passes through the second channel and the first channel, thus connecting the two sliding buttons. Sliding the buttons causes the limiting bolt to engage simultaneously in the notches of the first cutting element and the first disc, ensuring that the first and second cutting elements are securely locked together to prevent unintentional opening and avoid injuries caused by such an event.
[0007] The garden shears according to the invention with adjustable opening width are characterized by the following: The width of the opening between the first cutting section and the second cutting section is adjustable depending on the branch thickness, so that concerns that the garden shears according to the invention can only cut thick branches and twigs with great effort or not at all are unfounded. Due to the adjustable opening, the garden shears according to the invention have a wide range of applications and are suitable for branches of different thicknesses, so that it is not necessary to purchase several garden shears, which significantly reduces acquisition costs, facilitates the transport and storage of the garden shears, and reduces the space required for the garden shears. Brief description of the drawings Fig. Figure 1 shows a perspective view of a garden shear according to the invention with adjustable opening width in the assembled state. Fig. Figure 2 shows an exploded view of the garden shears according to the invention. Fig. 1. Fig. Figure 3 shows a planar view of the garden shears according to the invention. Fig. 1 in assembled state. Fig. Figure 4 shows a sectional view of the garden shears according to the invention. Fig. 3. Fig. Figure 5 shows a schematic representation of the unlocking mechanism of the garden shears according to the invention in sectional view. Fig. Figure 6 shows a perspective view to illustrate the unlocking process. Fig. Figure 7 shows a first sectional view to illustrate the unlocked state of the garden shears according to the invention. Fig. Figure 8 shows a second sectional view to illustrate the unlocked state of the garden shears according to the invention. Fig. Figure 9 shows a third sectional view to illustrate the unlocked state of the garden shears according to the invention. Fig. Figure 10 shows a schematic representation of the use of the garden shears with a large opening according to the invention. Fig. Figure 11 shows a schematic representation of the adjustment process of the garden shears according to the invention. Fig. Figure 12 shows a sectional view to illustrate the adjusted state of the garden shears according to the invention. Fig. Figure 13 shows a schematic representation of the setting to a small opening width of the garden shears according to the invention. Detailed description of a preferred embodiment
[0008] The following section will explain in more detail the tasks, features, and advantages of the present invention with reference to a detailed description of an exemplary embodiment and the accompanying drawings. However, the invention is not limited to the description of this exemplary embodiment and its illustration in the accompanying drawings.
[0009] As from Fig. 1 to Fig. As can be seen in Figure 4, the garden shears according to the invention with adjustable opening width comprise a first cutting body 10, a second cutting body 20, an adjustment unit 30, and a safety device 40. The first cutting body 10 has a first cutting part 11 and a first extension section 12, wherein the first cutting part 11 and the first extension section 12 are connected to each other, wherein the first extension section 12 is encased by a first handle 13, wherein a first disc 131 is arranged on the first handle 13 such that it projects beyond the first handle 13, wherein a first axial bore 132, 111 and a notch 133, 112 are arranged on both the first disc 131 and the first cutting part 11, wherein a first arcuate receptacle 113 and a second arcuate receptacle 114 are further arranged on the first cutting part 11, wherein the first and second recording 113,114 are connected and the second recording 114 is shorter than the first recording 113. The second cutting body 20 has a second cutting part 21 and a second extension section 22, wherein the second cutting part 21 and the second extension section 22 are connected to each other, wherein the end section of the second cutting part 21 and the second extension section 22 are encased by a second handle 23, wherein a second disk 231 is arranged on the second handle 23 such that it projects beyond the second handle 23, wherein a second axial bore 232 and an opening 211 are arranged on the second disk 231 and the second cutting part 21 respectively, wherein a first channel 212 is arranged on the end section of the second cutting part 21 and a second channel 233 is arranged on the second handle 23, wherein an elongated hole 213 is arranged on the second cutting part 21, which is located next to the opening 211,wherein an arc-shaped opening 234 is arranged on the second disk 231, which is located next to the second axis bore 232 and is designed such that the side of the arc-shaped opening 234 facing the second axis bore 232 widens stepwise from one end to the other end, wherein a larger first receiving space 235 and a smaller second receiving space 236 are formed at both ends of the arc-shaped opening 234. The adjusting unit 30 comprises an adjusting ring 31, a locking pin 32, an axle journal 33, and a screw element 34, wherein the adjusting ring 31 is designed such that a changeover switch 311 projects beyond the adjusting ring 31 and an arc-shaped section 312 projects from the inside of the adjusting ring 31, wherein an arc-shaped recess 313 is formed on the arc-shaped section 312 into which one end of the locking pin 32 can be inserted. The adjusting ring 31 is placed onto the second disk 231 in such a way thatthat the arc-shaped piece 312 is arranged in the first receiving space 235. This allows the other end of the fixing pin 32 to be guided simultaneously into the elongated hole 213 and the first receiving space 113. By guiding the axle journal 33 into the first axle bores 132, 111, the opening 113, the second axle bore 232, and the adjusting ring 31, and screwing it together with the screw element 34, the first and second cutting bodies 10, 20 are easily connected to each other. The adjusting ring 31 is rotated by the switch 311 to adjust the opening width of the first and second cutting parts 11, 21. The safety device 40 has two sliding buttons 41, which are pressed against each other and screwed together by means of a screw, with a limiting bolt 42 arranged between the two sliding buttons 41.which successively passes through the second channel 233 and the first channel 212, thus connecting the two sliding keys 41. By sliding the sliding keys 41, the limiting bolt 42 is brought to simultaneously engage in the notches 112, 133 of the first cutting part 11 and the first disc 131, so that the first and the second cutting parts 11, 21 are securely locked together to prevent unwanted opening and avoid injuries caused by unwanted opening.
[0010] According to the invention, the first cutting part 11 is a blade and the second cutting part 21 is an anvil.
[0011] According to the invention, the second receptacle 114 is located closer to the first axial bore 111 of the first cutting part 11 compared to the first receptacle 113.
[0012] According to the invention, an elastic element 50 is arranged between the first handle 13 and the second handle 23 in such a way that the elastic element 50 is supported under elastic tension on the first and the second handle 13, 23.
[0013] According to the invention, the elastic element 50 is a barrel-shaped spring wound from sheet metal.
[0014] According to the invention, the elastic element 50 is a compression spring wound from metal wire.
[0015] According to the invention, a recess 237 is arranged on the second disk 231 in which the switch 311 is to be placed, so that the switch 311 is only permitted to cause the adjusting ring 31 to rotate to a certain angle and to a certain limited extent.
[0016] According to the invention, two positioning elements 25 are arranged in the second handle 23, which are pressed outwards under the influence of the spring 24, with two locking recesses 411 being arranged on the inside of each slide button 25, into which the positioning elements 25 can selectively engage. By engaging the positioning elements 25 in the locking recesses 411, the slide buttons 41 are securely locked or unlocked.
[0017] According to the invention, the axle pin 33 is first guided through a cover 35 and then screwed together with the screw element 34.
[0018] According to the invention, a square section 331 is arranged on the axle journal 33, which fits into the opening 211 in such a way that a force transmission is created.
[0019] For the use of the garden shears according to the invention, the following applies: Fig. 5 to Fig. 9 referred to. The sliding keys 41 are moved in one direction to release the limiting bolt 42 from the notches 112, 133, so that the first and second cutting elements 10, 20 can be opened freely and thus easily to perform cutting operations. During the cutting process, the fixing pin 32 will move back and forth within the area limited by the first receptacle 113 so that the first and second cutting elements 11, 21 form a large opening for the material to be cut (see also Fig. 10) When the first and second cutting bodies 10, 20 are joined together, the adjusting ring 31 is moved to one side by the switch 311 so that the arc-shaped piece 312 is inserted into the smaller second receiving chamber 236 in order to move the fixing pin 32 laterally (see also Fig. 11) Under these circumstances, the fixing pin 32 can move out of the way via the elongated hole 213 and thus move unhindered into the second receptacle 114 (see also Fig. 12) Because the second receptacle 114 is shorter than the first receptacle 113 and allows the fixing pin 32 to move back and forth during cutting, the first and second cutting parts 11, 21 can form a small opening for the material to be cut (see also Fig. 13). Thus, the opening of the first and second cutting parts 11, 21 can be adjusted according to the requirements of the cutting work.
[0020] The garden shears according to the invention with adjustable opening width are characterized by the following: The width of the opening between the first cutting element 11 and the second cutting element 21 is adjustable depending on the branch thickness, so that concerns that the garden shears according to the invention can only cut thick branches and twigs with great effort or not at all are unfounded. Due to the adjustable opening, the garden shears according to the invention have a wide range of applications and are suitable for branches of different thicknesses, so that it is not necessary to purchase several garden shears, which significantly reduces acquisition costs, facilitates transport and storage of the garden shears, and reduces the space required for the garden shears.
[0021] Although the present invention has been described in detail with reference to an exemplary embodiment, it is obvious to those skilled in the art that the invention is not limited to this embodiment, but rather that modifications are possible such that individual features can be omitted or different combinations of features can be implemented, as long as the scope of protection of the appended claims is not exceeded. The disclosure of the present invention includes all combinations of the individual features presented. Reference symbol list 10 first cutting body 11 first cutting part 111 first axle bore 112 notch 113 first recording 114 second recording 12 first extension section 13 First step 131 first disc 132 first axle bore 133 notch 20 second cutting body 21 second cutting part 211 Breakthrough 212 first channel 213 Slotted hole 22 second extension section 23 second hand movement 231 second disc 232 second axle bore 233 second channel 234 arc-shaped opening 235 first recording room 236 second recording room 237 Exclusion 24 springs 25 fixing element 30 setting unit 31 adjusting ring 311 Switch 312 arc-shaped piece 313 arc-shaped recess 32 fixing pin 33 axle stubs 331 square section 34 screw element 35 lids 40 Safety device 41 Slide button 411 Fixing recess 42 limit bolts 50 elastic element
Claims
[1] Garden shears with adjustable opening width, comprising a first cutting body (10), a second cutting body (20), an adjustment unit (30) and a safety device (40), characterized by , that the first cutting body (10) has a first cutting part (11) and a first extension section (12), wherein the first cutting part (11) and the first extension section (12) are connected to each other, wherein the first extension section (12) is encased by a first handle (13), wherein a first disk (131) is arranged on the first handle (13) such that it projects beyond the first handle (13), wherein a first axial bore (132, 111) and a notch (133, 112) are arranged on both the first disk (131) and the first cutting part (11), wherein a first arcuate receptacle (113) and a second arcuate receptacle (114) are further arranged on the first cutting part (11), wherein the first and the second receptacle (113, 114) are connected to each other and the second receptacle (114) is shorter than the first receptacle (113) is; that the second cutting body (20) has a second cutting part (21) and a second extension section (22), wherein the second cutting part (21) and the second extension section (22) are connected to each other, wherein the end section of the second cutting part (21) and the second extension section (22) are encased by a second handle (23), wherein a second disk (231) is arranged on the second handle (23) such that it projects beyond the second handle (23), wherein a second axial bore (232) and an opening (211) are arranged on the second disk (231) and the second cutting part (21), wherein a first channel (212) is arranged on the end section of the second cutting part (21) and a second channel (233) is arranged on the second handle (23), wherein an elongated hole (213) is arranged on the second cutting part (21), which is located next to the opening (211),wherein an arc-shaped opening (234) is arranged on the second disk (231), which is located next to the second axial bore (232) and is designed such that the side of the arc-shaped opening (234) facing the second axial bore (232) widens stepwise from one end to the other end, wherein a larger first receiving space (235) and a smaller second receiving space (236) are formed at each end of the arc-shaped opening (234); that the adjusting unit (30) comprises an adjusting ring (31), a locking pin (32), a pivot pin (33) and a screw element (34), wherein the adjusting ring (31) is designed such that a changeover switch (311) projects beyond the adjusting ring (31) and an arc-shaped piece (312) projects from the inside of the adjusting ring (31), wherein an arc-shaped recess (313) is formed on the arc-shaped piece (312) into which one end of the locking pin (32) can be inserted, wherein the adjusting ring (31) is placed on the second disk (231) such that the arc-shaped piece (312) is arranged in the first receiving space (235), wherein the other end of the locking pin (32) can be guided simultaneously into the elongated hole (213) and the first receiving space (113), wherein the pivot pin (33) is guided into the first The axle bores (132, 111), the opening (113), the second axle bore (232) and the adjusting ring (31) are guided and screwed together with the screw element (34).the first and second cutting elements (10, 20) can be easily connected to each other, whereby the adjusting ring (31) is rotated with the switch (311) to adjust the opening width of the first and second cutting elements (11, 21); and, that the safety device (40) has two sliding buttons (41) which are pressed against each other and screwed together by means of a screw, wherein a limiting bolt (42) is arranged between the two sliding buttons (41), which passes through the second channel (233) and the first channel (212) one after the other and thus connects the two sliding buttons (41) together, wherein the limiting bolt (42) is brought by sliding the sliding buttons (41) to engage simultaneously in the notches (112, 133) of the first cutting part (11) and the first disc (131), so that the first and the second cutting part (11, 21) are securely held locked in the closed state in order to prevent unwanted opening and to avoid injuries caused by unwanted opening. [2] Garden shears according to claim 1, characterized by , that the first cutting part (11) is a blade and the second cutting part (21) is an anvil. [3] Garden shears according to claim 1, characterized by , that the second recording (114) is located closer to the first axial bore (111) of the first cutting part (11) compared to the first recording (113). [4] Garden shears according to claim 1, characterized by , that an elastic element (50) is arranged between the first handle (13) and the second handle (23) such that the elastic element (50) is supported under elastic tension on the first and the second handle (13, 23). [5] Garden shears according to claim 4, characterized by , that the elastic element (50) is a barrel-shaped spring wound from sheet metal. [6] Garden shears according to claim 4, characterized by , that the elastic element (50) is a compression spring wound from metal wire. [7] Garden shears according to claim 1, characterized by, that a recess (237) is arranged on the second disk (231) in which the switch (311) is to be accommodated. [8] Garden shears according to claim 1, characterized by , that in the second handle (23) two positioning elements (25) are arranged which are pressed outwards under the action of the spring (24), wherein two fixing recesses (411) are arranged on the inside of the respective sliding button (25). [9] Garden shears according to claim 1, characterized by , that the axle pin (33) is first guided through a cover (35) and then screwed together with the screw element (34). [10] Garden shears according to claim 1, characterized by , that a square section (331) is arranged on the axle pin (33) which fits into the opening (211) in such a way that a force transmission is created.