Gardening shears

Abstract

To provide horticulture scissors which allow even an ordinary consumer to replace a spare blade simply and safely, and also allow damage to the spare blade to be prevented or lightened.SOLUTION: Horticulture scissors have a scissoring tool 3 that cuts off an object to be cut off in horticulture, where the scissoring tool 3 comprises: a planar spare blade 51 having a tip 511 and a ridge part 512; a support member 52 which supports the spare blade 51 along the ridge part 512; and a fixing member 53 which fixes the spare blade 51 along the ridge part 512 with respect to the support member 52. The support member 52 comprises: a first locking part 524a which locks one side end surface of the ridge part 512 in the spare blade 51 in an inner edge part supporting the spare blade 51; and a second locking part 524b which locks a top end surface of the ridge part 512 in the spare blade 51.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to gardening shears used in the field of gardening for pruning branches at high places, picking fruit, etc. [Background technology]

[0002] BACKGROUND ART Various gardening shears have been proposed in the field of horticulture for use in pruning high branches and picking fruit. These shears have a flexible pipe member, a shears tool attached to the tip of the pipe member, and an operating means attached to the base of the pipe member, and the operating means is operated to operate the shears via the pipe member.

[0003] For example, a proposed cutter blade has a fixed receiving member that is rotatable, a receiving portion that receives the cutting edge of the movable blade, a cover member that extends from the ridge of the movable blade along both sides of the movable blade toward the cutting edge and covers the movable blade, a biasing means consisting of a torsion spring that biases the cover member so that the movable blade is covered by the cover member, and a clamping portion that clamps the object to be cut inserted between the fixed receiving member and the movable blade at one of the opposing parts of the fixed receiving member and the cover member (see, for example, Patent Document 1).

[0004] Also proposed is a shearing device that includes a fixed shearing section having a two-layer support plate, a fixed groove formed therebetween, and an abutment member that is fitted into the fixed groove and on which the object to be sheared is placed; a movable shearing section that is fitted into the fixed groove, and a shearing blade that is provided on a part of the movable section and is pressed by the abutment member to shear the object to be sheared; a clamping section that has a tooth portion at one end that abuts the abutment member and clamps the object to be sheared, and an extension portion at the other end; an elastic body that elastically supports the extension portion and the movable section, and presses the tooth portion against the object to be sheared when the shearing blade is pressed against the object to be sheared or the abutment member, and these are pivotally supported on a single support shaft so that they can rotate freely relative to each other (see, for example, Patent Document 2). [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2006-230263 [Patent Document 2] Japanese Patent Application Laid-Open No. 2006-166790 Summary of the Invention [Problem to be solved by the invention]

[0006] If such gardening shears are used continuously for many years, the cutting edge will gradually become dull and the blades will need to be replaced.

[0007] However, conventional gardening shears typically have thick blades to withstand long-term use, and these thick, heavy blades are very firmly attached to the support member to prevent them from easily coming off during use. This makes it extremely difficult for ordinary consumers to replace the blades, forcing them to either send them to the gardening shears manufacturer for a replacement or continue using the shears with a dull blade. While some products have been proposed that require the entire support member, including the blade, to be replaced, this poses the problem of unnecessary and expensive costs incurred just for the blade replacement.

[0008] Naturally, if a blade is formed in a thin, flat plate shape, the blade will be easier to handle, but conventional gardening shears have a structure in which the blade protrudes from the support member or the sides of the blade are completely exposed, so when trying to cut large branches or hard objects with a thin, flat blade, there is a risk that the blade will easily bend, crack, or otherwise be damaged.

[0009] To provide gardening scissors which have been made in view of the above-mentioned problems and which allow even ordinary consumers to easily and safely replace the replacement blades and which can prevent or reduce breakage of the replacement blades. [Means for solving the problem]

[0010] In order to achieve the above-mentioned object, the present invention provides gardening shears having scissors for cutting objects in gardening, characterized in that the scissors include a flat replacement blade having a cutting edge and a ridge, a support member that supports the replacement blade along the ridge, and a fixing member that fixes the replacement blade to the support member along the ridge.

[0011] According to this, when attaching a replacement blade to scissors, the replacement blade is supported along the ridge by the support member, and then the replacement blade is fixed to the support member along the ridge by the fixing member, thereby easily attaching the replacement blade to the scissors. Furthermore, when removing the replacement blade from the scissors, the replacement blade can be easily removed from the scissors by releasing the fixing member from the fixing member and then pulling the replacement blade out of the support member. This makes it possible for even ordinary consumers to easily and reliably replace replacement blades. Moreover, because the replacement blade is supported along the ridge by the support member, damage to the replacement blade, such as bending or cracking, can be prevented or reduced.

[0012] The support member may have a stepped portion at its inner edge supporting the replacement blade, the stepped portion including a first locking portion for locking one side end surface of the ridge portion of the replacement blade and a second locking portion for locking the upper end surface of the ridge portion of the replacement blade. This allows the replacement blade to be attached to the scissors by fitting it into the stepped portion of the support member, and can also be removed from the scissors by pulling the replacement blade out of the stepped portion of the support member, making it possible to replace the replacement blade even more easily and reliably.

[0013] The step may also have a third locking portion that locks both longitudinal sides of the cutting edge of the replaceable blade. This allows the replaceable blade to be supported from below by the third locking portion, thereby enabling the replaceable blade to be stably attached to the scissors.

[0014] The fixing member may also engage the other side end surface of the back edge of the blade to fix the blade to the support member along the back edge. This allows the support member and the fixing member to support the back edge of the blade from both the left and right sides, making it possible to more stably attach the blade to the scissors.

[0015] The fixing member may be rotatable in a plane relative to the support member, so that when attaching a replacement blade to the scissors, the fixing member can be rotated toward the replacement blade to fix the replacement blade to the support member, while when removing the replacement blade from the scissors, the fixing member can be rotated away from the replacement blade to release the replacement blade from its fixation by the fixing member.

[0016] Furthermore, the support member may have one or more fixing screws for fixing the fixing member, the fixing member having a screw recess on its inner edge on the replacement blade side, and when the fixing member is rotated toward the replacement blade side, the fixing screws of the support member may fit into the screw recess of the fixing member, and the fixing member may be fastened to the support member by the fixing screws. In this way, the replacement blade can be reliably fixed to the support member by rotating the fixing member toward the replacement blade side, fitting the fixing screws of the support member into the screw recess of the fixing member, and then fastening the fixing member to the support member by the fixing screws.

[0017] The replacement blade may be trapezoidal in side view, having an upper base, a lower base that is longer than the upper base, and leg sides on both sides of the upper and lower bases, with a cutting edge on the lower base and ridges on the upper base and leg sides, the support member supports the replacement blade along the ridges of the upper base and leg sides, and the fixing member fixes the replacement blade to the support member along the ridges of the upper base and leg sides. This allows the cutting edge of the replacement blade to be configured long and allows the replacement blade to be attached to the scissors more stably.

[0018] The blade may have a recess or protrusion on the ridge, and the support member may have a protrusion or recess on the inner edge supporting the blade, so that the recess or protrusion of the blade and the protrusion or recess of the support member fit together. This prevents the blade from wobbling in the plane when the support member supports the blade.

[0019] The present invention also provides gardening shears, comprising the above-mentioned shears, a long pipe member with the shears attached to the tip, and an operating means for opening and closing the shears. This allows even ordinary consumers to easily and reliably replace the blades in gardening shears used to cut high-placed objects such as tall branches. Furthermore, because the blades are supported by a support member along the ridges, damage such as bending or cracking of the blades can be prevented or reduced. [Effects of the Invention]

[0020] According to the present invention, when attaching a replacement blade to scissors, the replacement blade is supported along the ridge by a support member, and then the replacement blade is fixed to the support member along the ridge by a fixing member, thereby easily attaching the replacement blade to the scissors. Furthermore, when removing the replacement blade from the scissors, the replacement blade can be easily removed from the scissors by releasing the fixing member and then pulling the replacement blade from the support member. This allows even ordinary consumers to easily and reliably replace replacement blades. Furthermore, because the replacement blade is supported along the ridge by the support member, damage to the replacement blade, such as bending or cracking, can be prevented or reduced. [Brief explanation of the drawings]

[0021] [Figure 1] 1 is an overall perspective view showing gardening shears according to an embodiment of the present invention; [Figure 2] FIG. 2 is a perspective view showing the vicinity of the scissors in FIG. 1. [Figure 3] FIG. 2 is an exploded perspective view showing the scissors of FIG. 1. [Figure 4]2 is a right side view showing the scissors in FIG. 1 with the fixing members opened. FIG. [Figure 5] 2 is a left side view showing the scissors of FIG. 1 with the fixing member closed. [Figure 6] FIG. 3 is a perspective view showing the replacement blade of FIG. 2. [Figure 7] FIG. 10 is a right side view showing the process of replacing blades in the gardening shears. [Figure 8] 1A and 1B are a perspective view and a left side view showing a process of cutting an object with gardening shears. DETAILED DESCRIPTION OF THE INVENTION

[0022] Next, an embodiment of gardening shears (hereinafter referred to as the present shears) according to the present invention will be described with reference to Figures 1 to 8. In this embodiment, as shown in Figure 1, the direction in which the shears 3 exist relative to the length direction of the present shears will be referred to as the front direction of the present shears, the direction in which the operating means 2 exists will be referred to as the rear direction of the present shears, the upward direction when an operator looks at the shears 3 from the operating means 2 will be referred to as the upward direction of the present shears, the downward direction will be referred to as the downward direction of the present shears, the right direction will be referred to as the right direction of the present shears, and the left direction will be referred to as the left direction of the present shears.

[0023] The scissors are primarily used to cut objects W such as tall branches, and as shown in Figure 1, comprise a long, extendable metal or resin pipe member 1, an operating means 2 attached to the base end of the pipe member 1, and scissors 3 attached to the tip end of the pipe member 1. The operator holds the operating means 2 in his / her right hand, for example, and the pipe member 1 in his / her left hand, while placing the scissors 3 at a predetermined location at a high place, and then operates the operating means 2 to cut the object W with the scissors 3.

[0024] As shown in FIG. 1, the pipe member 1 includes a small-diameter hollow first pipe member 11 provided at the distal end, a large-diameter hollow second pipe member 12 into which the first pipe member 11 is inserted, and a joint 13 connecting the first pipe member 11 and the second pipe member 12. As shown in FIG. 2, this joint 13 has an adjustment lever 13a provided on the upper side. Pressing the adjustment lever 13a enables the first pipe member 11 to extend or retract relative to the second pipe member 12, while releasing the adjustment lever 13a enables the first pipe member 11 to be fixed relative to the second pipe member 12. This allows the operator to adjust the overall length of the pipe member 1 by operating the adjustment lever 13a of the joint 13. A resin grip 14 is provided at an intermediate position near the proximal end of the first pipe member 11 so that the operator can hold the grip 14 with one hand.

[0025] As shown in FIG. 2, the pipe member 1 has an operating rod 15 extending axially inside, the tip of which is connected to the scissors 3, and the base of which is connected to the operating means 2, so that the operation of the operating means 2 by the operator is transmitted to the scissors 3 via the operating rod 15.

[0026] As shown in FIG. 5, reference numeral 16 denotes a connecting screw for connecting the scissors 3 as described below, and reference numeral 17 denotes a knob screw 17 used when attaching another tool such as a saw dedicated to these scissors.

[0027] 1, the operating means 2 includes an operating main body 21 provided at the base end of the pipe member 1, a fixed lever 22 fixed to the upper side of the operating main body 21, and an operating lever 23 rotatably provided at the lower side of the operating main body 21, and the operating lever 23 is connected to the base end of the operating rod 15. This operating lever 23 is biased by a spring member (not shown) in a direction away from the fixed lever 22, and when the operator grips the operating means 2 to rotate the operating lever 23 toward the fixed lever 22 against the biasing force, the operating rod 15 retreats in the axial direction, whereas when the operator releases the operating lever 23 and returns it while naturally rotating toward the fixed lever 22 due to the biasing force, the operating rod 15 advances in the axial direction.

[0028] As shown in Figures 2 to 5, the scissors 3 comprises a main body 4 provided at the tip of the pipe member 1, a blade section 5 rotatably supported on the upper side of the main body 4, a receiving section 6 fixed to the lower side of the main body 4, and a clamping section 7 rotatably supported on the upper side of the main body 4 alongside the blade section 5.

[0029] The main body 4 includes a base 41 made of metal and formed in a flat plate shape, an insertion shaft 42 extending rearward from the base 41, a pivot support 43 extending upward from the base 41, and a receiving and fixing portion 44 extending forward from the base 41. The main body 4 is connected to the first pipe member 11 by threading a connecting screw 16 of the first pipe member 11 into the fixing hole 42a formed in the insertion shaft 42 with the insertion shaft 42 inserted into the first pipe member 11. As shown in FIG. 5 , the main body 4 is also connected to the first pipe member 11 by forming an oval hole 41a in the base 41 that curves gently up and down and extends in the front-to-rear direction, and a connecting screw 526 (described later) is movably inserted into the oval hole 41a.

[0030] The blade portion 5 includes a flat metal replaceable blade 51 , a support member 52 that supports the replaceable blade 51 , and a fixing member 53 that fixes the replaceable blade 51 to the support member 52 .

[0031] 6, the replacement blade 51 has a trapezoidal shape in a side view, including an upper base 51a, a lower base 51b that is longer than the upper base 51a, and leg sides 51c and 51d on both sides of the upper base 51a and the lower base 51b. The lower base 51b has a cutting edge 511, and the upper base 51a and leg sides 51c and 51d have ridges 512. The replacement blade 51 is formed to be thin, with a thickness of 0.4 mm to 1.0 mm, which makes it easy to handle when replacing the replacement blade 51, as described below, and allows it to be provided inexpensively. Furthermore, the replacement blade 51 has two mating recesses 513 formed in the center of the ridge 512 of the upper base 51a, which fit into mating protrusions 528 of the support member 52, which will be described later.

[0032] As shown in Figure 4, the support member 52 is a flat metal plate formed in an approximately U-shape when viewed from the side, and includes a support main body portion 520 that is rotatably supported on the support portion 43 of the main body portion 4 via a rotation axis 527, a connecting portion 525 that extends downward from the support main body portion 520, a first support portion 521 that extends diagonally upward and forward from the support portion 43, a second support portion 522 that bends from the first support portion 521 and extends forward, and a third support portion 523 that extends diagonally downward and forward from the second support portion 522.

[0033] Furthermore, the support member 52 has a connecting portion 525 connected to the tip of the operating rod 15 via a connecting screw 526, and the tip of the connecting screw 526 is inserted into the oval hole 41a of the main body 4. Therefore, when the operating rod 15 moves forward in the axial direction, the connecting screw 526 slides forward within the oval hole 41a, causing the connecting portion 525 to move forward, and accordingly, the support member 52 rotates rearward about the rotation shaft 527. When the operating rod 15 moves backward in the axial direction, the connecting screw 526 slides rearward within the oval hole 4a, causing the connecting portion 525 to move rearward, and accordingly, the support member 52 rotates forward about the rotation shaft 527.

[0034] The support member 52 also has step portions 524 at the inner edges of the first support portion 521, the second support portion 522, and the third support portion 523. The step portion 524 is for locking the ridge portion 512 of the replaceable blade 51, and includes a first locking portion 524a for locking the left end surface of the ridge portion 512 of the replaceable blade 51, and a second locking portion 524b for locking the upper end surface of the ridge portion 512 of the replaceable blade 51. As a result, the left end face and upper end face of the ridge 512 of the rear leg side 51d of the replacement blade 51 are engaged at the step portion 524 of the first support portion 521, the left end face and upper end face of the ridge 512 of the upper base side 51a of the replacement blade 51 are engaged at the step portion 524 of the second support portion 522, and the left end face and upper end face of the ridge 512 of the front leg side 51c of the replacement blade 51 are engaged at the step portion 524 of the third support portion 523, thereby allowing the replacement blade 51 to be supported along the entire ridges 512 of the upper base 51a and leg sides 51c and 51d.

[0035] Furthermore, support member 52 is provided with third locking portions 524c at the inner edge of the distal end of first support portion 521 and the proximal end of second support portion 522, respectively, for locking both longitudinal sides of cutting edge 511 of replaceable blade 51. Third locking portion 524c has the same width as first locking portion 524a of step portion 524 and the same depth as second locking portion 524b, and is bent and connected to first locking portion 524a and second locking portion 524b. This allows replaceable blade 51 to be supported from below by third locking portion 524c, allowing replaceable blade 51 to be stably attached to scissors 3.

[0036] Furthermore, the support member 52 has two fitting protrusions 528 formed in the center in the front-rear direction of the second support part 522, which fit into the fitting recesses 513 of the upper base side 51a of the replacement blade 51 as described above. This prevents the replacement blade 51 from rattling in the planar direction when the replacement blade 51 is fitted into the step 524 of the support member 52.

[0037] In addition, the support member 52 is provided with thumb screws 529 for fixing the fixing member 53 at the center of the second support part 522 in the front-to-back direction and at the tip of the third support part 523, and is normally provided in a state where it is loosely screwed into the second support part 522 and the third support part 523.

[0038] As shown in Figure 4, the fixing member 53 is a flat metal plate formed in an approximately U-shape when viewed from the side, and includes a fixing main body portion 530 that is rotatably supported on the first support portion 521 of the support member 52 via a second rotation axis 535, a first fixing portion 531 that corresponds to the first support portion 521 extending from the fixing main body portion 530, a second fixing portion 532 that corresponds to the second support portion 522 extending from the fixing main body portion 530, and a third fixing portion 533 that corresponds to the second support portion 523 extending from the second fixing portion 532. 7(b), when the fixing member 53 is rotated forward to overlap the replaceable blade 51 as shown in FIG. 7(c), the first fixing portion 531 fixes a portion of the right end surface of the ridge 512 of the rear leg 51d of the replaceable blade 51, the second fixing portion 532 fixes the entire right end surface of the ridge 512 of the upper base 51a of the replaceable blade 51, and the third fixing portion 533 fixes the entire right end surface of the ridge 512 of the front leg 51c of the replaceable blade 51, thereby fixing the replaceable blade 51 to the support member 52 along the ridge 512. On the other hand, when the fixing member 53 is rotated backward to move away from the replaceable blade 51 as shown in FIG. 7(b), all of the first fixing portion 531, the second fixing portion 532, and the third fixing portion 533 release the fixation of the ridge 512 of the replaceable blade 51.

[0039] Furthermore, the fixing member 53 has screw recesses 534 formed in the left-right center of the second fixing portion 532 and at the tip of the third fixing portion 533, into which the thumb screws 529 of the support member 52 fit. As a result, when the fixing member 53 rotates forward, the thumb screws 529 of the support member 52 fit into the screw recesses 534 of the fixing member 53, and therefore, when the thumb screws 529 are rotated clockwise in this state, the fixing member 53 can be fastened and fixed to the support member 52, whereas when the thumb screws 529 are rotated counterclockwise, the fixing of the fixing member 53 to the support member 52 can be released.

[0040] In this embodiment, the fixing member 53 is provided to be rotatable in a plane direction relative to the support member 52, but it may be provided separately from the side of the support member 53.

[0041] The receiving part 6 is a resin member having a trapezoidal shape in a plan view that receives the workpiece W, and is fixed by screws 61, 61 in a manner that extends in the front-to-rear direction above the receiving fixing part 44 of the main body 4. In addition, a plurality of triangular wave-shaped anti-slip portions 62 are formed on the upper surface of the receiving part 6 along the front-to-rear direction, which prevents the workpiece W from slipping in the front-to-rear direction when the workpiece W is clamped between the blade part 5 and the clamping part 7, allowing the workpiece W to be clamped safely.

[0042] The clamping portion 7 is a resin member that clamps the object W between itself and the receiving portion 6, and is rotatably supported on the axial support portion 43 of the main body 4 on the left-right opposite side of the support member 52 via the same rotation shaft 527 as the support member 52. Structurally, the clamping portion 7 rotates around the axial support portion 43 of the main body 4 in accordance with the rotation of the support member 52. Furthermore, the clamping portion 7 is biased in a closing direction relative to the receiving portion 6 by a spring (not shown) at the axial support portion 43 of the main body 4. Therefore, when cutting the object W, the clamping portion 7 rotates together with the support member 52, but once the object W is clamped between itself and the receiving portion 6, it no longer follows the rotation of the support member 52, and continues to clamp the object W between itself and the receiving portion 6 due to the biasing force of the spring member (not shown) even after the object W has been cut. Furthermore, when the operating means 2 is operated to rotate the support member 52 in the opposite direction to the receiving portion 6 and reach the position of the clamping portion 7, the clamping portion 7 rotates in the opposite direction to the receiving portion 6 together with the support member 52, and releases the workpiece W that was being clamped between the receiving portion 6 and the support member 52.

[0043] Next, a method for replacing the blade 51 of the scissors will be described.

[0044] First, when attaching the replacement blade 51 to the scissors 3, as shown in Figure 7(a), the fixing member 53 is rotated backward relative to the support member 52 to open the step portion 524 of the support member 52, and then, as shown in Figure 7(b), the replacement blade 51 is fitted into the step portion 524 of the support member 52 from the right side while the ridge portion 512 of the upper base side 51a of the replacement blade 51, the ridge portion 512 of the rear leg side 51d and the ridge portion 512 of the front leg side 51c of the replacement blade 51 correspond to the step portions 524 of the first support portion 521, the second support portion 522 and the third support portion 523 of the support member 52.

[0045] At this time, the left end face and upper end face of the ridge portion 512 on the rear leg side 51d of the replacement blade 51 are engaged at the step portion 524 of the first support portion 521, the left end face and upper end face of the ridge portion 512 on the upper base side 51a of the replacement blade 51 are engaged at the step portion 524 of the second support portion 522, and the left end face and upper end face of the ridge portion 512 on the front leg side 51c of the replacement blade 51 are engaged at the step portion 524 of the third support portion 523, thereby allowing the replacement blade 51 to be supported along the entire ridge portion 512.

[0046] Then, as shown in Figure 7(c), when the fixing member 53 is rotated forward relative to the support member 52 so as to overlap the replacement blade 51, the first fixing portion 531 fixes a portion of the right end surface of the ridge portion 512 of the rear leg side 51d of the replacement blade 51, the second fixing portion 532 fixes the entire right end surface of the ridge portion 512 of the upper base side 51a of the replacement blade 51, and the third fixing portion 533 fixes the entire right end surface of the ridge portion 512 of the front leg side 51c of the replacement blade 51, thereby allowing the replacement blade 51 to be fixed relative to the support member 52 along the ridge portion 512.

[0047] Finally, by rotating the thumbscrew 529 of the support member 52 clockwise, the fixing member 53 is tightened and fixed to the support member 52, so that the replacement blade 51 can be easily and safely attached to the scissors 3.

[0048] On the other hand, when removing the replacement blade 51 from the support member 52, as shown in Figure 7(b), the thumb screw 529 of the support member 52 is rotated to release the fixing of the fixing member 53 to the support member 52, and then the fixing member 53 is rotated backward so as to move away from the replacement blade 51, and all of the first fixing portion 531, the second fixing portion 532 and the third fixing portion 533 release the fixing of the ridge portion 512 of the replacement blade 51, and the right side of the replacement blade 51 becomes open.

[0049] 7(a), the replacement blade 51 can be easily removed from the scissors 3 by pulling the replacement blade 51 out from the support member 52 toward the right side.

[0050] According to this, when attaching the replacement blade 51 to the scissors 3, the replacement blade 51 is supported by the support member 52 along the ridge 512, and then the replacement blade 51 is fixed to the support member 52 along the ridge 512 by the fixing member 53, thereby easily attaching the replacement blade 51 to the scissors 3. Furthermore, when removing the replacement blade 51 from the scissors 3, the replacement blade 51 can be easily removed from the scissors 3 by releasing the fixing of the replacement blade 51 by the fixing member 53 and then pulling the replacement blade 51 out of the support member 52. This makes it possible for even ordinary consumers to easily and reliably replace the replacement blade 51. Moreover, because the replacement blade 51 is supported by the support member 52 along the ridge 512, damage to the replacement blade 51, such as bending or cracking, can be prevented or reduced.

[0051] Next, we will explain how to use these scissors.

[0052] With the replacement blade 51 attached to the scissors, the operator holds the entire scissors, for example by holding the operating means 2 with the right hand and the gripping portion 14 with the left hand, and then places the scissors 3 at a predetermined location on the object to be cut W, such as a high branch, so that the object to be cut W is positioned between the blade portion 5 and the receiving portion 6, as shown in Figure 8(a).

[0053] 8(b), when the operator grips the operating means 2 to move the operating lever 23 toward the fixed lever 22 against the biasing force, the operating rod 15 retracts in the axial direction, and the blade 5 rotates forward toward the receiving part 6, thereby cutting the object W. At this time, as shown in FIG. 8(c), the object W is held between the clamping part 7 and the receiving part 6, so that the object W can be prevented from falling from the scissors 3.

[0054] Then, after the operator places the scissors 3 at a predetermined location such as on the ground, the operator releases the operating lever 23, which moves the operating lever 23 away from the fixed lever 22 due to the biasing force, causing the operating rod 15 to move forward in the axial direction, and as a result, the blade portion 5 rotates rearward on the opposite side of the receiving portion 6, and the clamping portion 7 also rotates rearward together with the blade portion 5 on the opposite side of the receiving portion 6, thereby releasing the workpiece W from the scissors 3 and placing it on the ground, etc.

[0055] Although the embodiments of the present invention have been described above with reference to the drawings, the present invention is not limited to the illustrated embodiments. Various modifications and variations can be made to the illustrated embodiments within the same scope as the present invention or within an equivalent scope. [Explanation of symbols]

[0056] 1...Pipe member 11...First pipe member 12...Second pipe member 13...Joint 13a...Adjustment lever 14...Gripping part 15...Operating rod 16...Connecting screw 17...Knob screw 2...Operation means 21...Operation main body 22...Fixed lever 23...Operating lever 3…Scissors tool 4...Main body 41...Base 41a...Oval hole 42...insertion shaft 42a…Fixing hole 43…Axis branch 44...Receiving fixing part 5...Blade part 51...Replacement blade 51a...Top base 51b...lower base 51c…Leg side (front side) 51d…Leg side (rear side) 511...Cutting edge 512...Minebe 513...Mating recess 52...Support member 520...Support body part 521...First support part 522...Second support part 523...Third support 524...Step 524a...first locking portion 524b...second locking portion 524c...Third locking portion 525...Connection part 526...Connecting screw 527...Pivot shaft 528...Fitting protrusion 529...Thumb screw 53...Fixing member 530…Fixed body part 531...first fixed part 532...Second fixing part 533...Third fixed part 534...Screw recess 535...Second rotation axis 6...Receiving part 61...Screw 62...Anti-slip 7...Holding part W…Object to be cut

Claims

1. A gardening shears having a shears tool for cutting an object to be cut in gardening, The scissors include: a flat replacement blade having a cutting edge and a ridge; a support member that supports the replacement blade along a ridge portion; a fixing member that fixes the replacement blade to the support member along a ridge portion, The support member has a stepped portion at its inner edge that supports the replacement blade, which has a first engaging portion that engages one side end surface of the ridge of the replacement blade, and a second engaging portion that engages the upper end surface of the ridge of the replacement blade.

2. The gardening shears according to claim 1, wherein the step portion has third locking portions that lock both longitudinal ends of the cutting edge of the replaceable blade.

3. 3. The gardening shears according to claim 1, wherein the fixing member engages the other side end surface of the ridge of the replaceable blade, thereby fixing the replaceable blade to the support member along the ridge.

4. 4. The gardening shears according to claim 1, wherein the fixing member is provided so as to be rotatable in a plane relative to the support member.

5. Gardening shears having a shears tool for cutting an object to be cut in gardening, The scissors include: a flat replacement blade having a cutting edge and a ridge; a support member that supports the replacement blade along a ridge portion; a fixing member that fixes the replacement blade to the support member along a ridge portion, the fixing member is provided rotatably in a planar direction relative to the support member, the support member has one or more fixing screws for fixing the fixing member, The fixing member has a recess for a screw on an inner edge portion on the replacement blade side, Gardening shears characterized in that when the fixing member is rotated toward the replacement blade, the fixing screw of the support member engages with the screw recess of the fixing member, and the fixing member is tightened and fixed to the support member by the fixing screw.

6. The replacement blade is formed in a trapezoidal shape in a side view, having an upper base, a lower base that is longer than the upper base, and leg sides on both sides of the upper base and the lower base, and has a cutting edge on the lower base and ridges on the upper base and the leg sides, The support member supports the replacement blade along the ridges of the upper base and leg sides, 6. The gardening shears according to claim 1, wherein the fixing member fixes the replacement blade to the support member along the ridges of the upper base and leg sides.

7. The replacement blade has a mating recess or mating protrusion on the ridge, The support member has a fitting protrusion or a fitting recess on an inner edge portion that supports the replacement blade, 7. Gardening shears according to claim 1, wherein the fitting recess or fitting protrusion of the replacement blade and the fitting protrusion or fitting recess of the support member fit together.

8. A gardening shears comprising the shears according to any one of claims 1 to 7, a long pipe member having the shears attached to the tip thereof, and an operating means for opening and closing the shears.

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