pruning shears

Abstract

To provide pruning shears which can easily prune the branches and leaves of plants and are easy to handle. [Solution] The pruning tool comprises a pair of scissors members 1,1 each having a blade portion 3 for pruning plants and a handle portion 4 that is held by the operator's hand, and a support portion 2 that pivotally supports the pair of scissors members 1,1 between the blade portion 3 and the handle portion 4 so that they can rotate relative to each other. Each handle portion 4 of the pair of scissors members 1,1 is provided with a ring portion 5 and a grip portion 6. The ring portion 5 forms a finger hole 5h that can receive the insertion of the operator's finger. The grip portion 6 extends beyond the ring portion 5 on the side opposite the side where the tip of the blade portion 3 is located, and can be held by the operator's hand.

Description

[Technical Field]

[0001] The present invention relates to pruning shears. [Background technology]

[0002] Conventional pruning shears have a pair of rod-shaped handles, as disclosed in Patent Document 1, for example. An operator can easily trim tree branches while holding the handles of the pruning shears with both hands. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2013-013382 Summary of the Invention [Problem to be solved by the invention]

[0004] Conventional pruning shears have a pair of rod-shaped handles that are required to be held by an operator with both hands. This makes them difficult to use in tight spaces where it is difficult to move around or where it is difficult to reach both hands.

[0005] To provide pruning shears that can easily prune the branches and leaves of plants and can be easily handled even in a place where it is difficult to move or a narrow place where it is difficult to reach both hands. [Means for solving the problem]

[0006] The pruning shears of the present invention are provided with a pair of scissors members each having a blade portion for pruning plants and a handle portion that is held by an operator's hand, and a support portion that pivotally supports the pair of scissors members between the blade portion and the handle portion so that the pair of scissors members can rotate relative to each other. teeth a ring portion forming a finger hole capable of receiving the insertion of the operator's finger; , from the ring portion forward The ring portion extends to the opposite side from the side where the blade portion is located. and an extending portion, wherein a portion of the ring portion that faces the ring portion of the other scissors member when the gap between the pair of blade portions is closed is an inner arc portion, and a portion that is positioned on the opposite side of the inner arc portion across the finger hole is an outer arc portion, and the extending portion and the outer arc portion are Gripped by the worker's hand and a pair of scissors members for rotating with respect to each other. Gripping part Configure It is characterized by:

[0007] According to the present invention, a pair of handles held by an operator are each provided with a ring portion and a extension part The ring portion has finger holes, so the operator can insert the fingers of one hand into each of the pair of finger holes to operate the pair of scissors members with one hand. This makes it easy to operate the pruning shears even in a narrow space where it is difficult to move or where it is difficult to fit both hands. extension part is extended to the opposite side of the cutting edge The extension and the outer arc portion form a gripping portion that is held by an operator's hand to rotate the pair of scissors members relative to each other. Therefore, even if the branches of a plant are somewhat hard, the operator can easily trim them by grasping the handles with both hands. This makes it possible to easily trim the branches and leaves of plants, and realizes pruning shears that are easy to handle even in places where it is difficult to move around or where it is difficult to reach both hands.

[0008] In the present invention, The extension portion It is preferable that the outer arc portion extends to the side opposite to the side where the cutting edge is located.

[0009] In this configuration , grip The length of the grip can be set to an extent that makes it easy to grip from the outer arc portion.

[0010] In the present invention, the gripping The department , The extending portion includes a portion whose cross-sectional shape is formed to be thicker as it approaches the extending tip side. This is preferable.

[0011] This configuration makes it easier for the operator to firmly grasp the extended tip region of the grip portion.

[0012] In the present invention, it is preferable that the support portion pivotally supports the pair of scissors members at a central region in the longitudinal direction of each of the pair of scissors members.

[0013] This configuration makes the blade length and the handle length roughly equal, allowing for a compact handle. It also makes it easier for the overall center of gravity of the pruning shears to be positioned between the blade and handle, stabilizing the center of gravity balance.

[0014] In the present invention, an upper arc portion of the ring portion located on the opposite side to the side where the support portion is located; extension part and a reinforcing member extending across and connected to each of the upper arc portion and the extended tip portion.

[0015] With this configuration, Extending part ( Gripping part ) The extension tip is less likely to deform (buckle). [Brief explanation of the drawings]

[0016] [Figure 1] FIG. [Figure 2] FIG. 2 is a diagram showing the pruning shears as viewed from the right side of the paper in FIG. [Figure 3] FIG. 2 is a diagram showing the pruning shears as viewed from below in the plane of FIG. 1. [Figure 4] FIG. 10 is a diagram showing the pruning shears used with one hand. [Figure 5] FIG. 10 is a diagram showing pruning shears to be used with both hands. DETAILED DESCRIPTION OF THE INVENTION

[0017] [Configuration of pruning shears] The pruning shears of this embodiment are used, for example, to trim plants (one example of a plant) in a garden. As shown in FIGS. 1 to 5, the pruning shears of this embodiment include a pair of scissors members 1,1 and a support part 2. The support part 2 pivotally supports the pair of scissors members 1,1 so that they can rotate relative to each other. Each of the pair of scissors members 1,1 includes a blade part 3 and a handle part 4. Each of the pair of scissors members 1,1 is pivotally supported by the support part 2 at a location between the blade part 3 and the handle part 4.

[0018] When an operator opens or closes the pair of handles 4, 4, the pair of blades 3, 3 open or close in conjunction with the pair of handles 4, 4. When the pair of blades 3, 3 are open, the pair of scissors members 1, 1 intersect in an X shape with the support member 2 as the axis. The total length of the scissors members 1 in the longitudinal direction is, for example, 380 to 430 mm. The blade length of the blades 3 is, for example, 160 to 195 mm, which is the same as that of pruning shears known as "large scissors."

[0019] The distance between the tip of the blade portion 3 and the axis of the support portion 2 is, for example, 190 to 210 mm. The distance between the tip of the handle portion 4 and the axis of the support portion 2 is, for example, 190 to 220 mm. In other words, the support portion 2 pivotally supports the pair of scissors members 1, 1 at the central region of each of the pair of scissors members 1, 1 in the longitudinal direction.

[0020] In this embodiment, a pair of handles 4, 4 each have a ring portion 5 and 、 Gripping part 6 and an extension portion indicated by The ring portion 5 is provided with a finger hole 5h that can receive the insertion of the operator's finger. The extending portion extends from the ring portion 5 to the side opposite to the side where the blade portion 3 is located. extends substantially along the longitudinal direction of the blade portion 3. extension part are formed in a shape that widens toward the end so that they move farther away from the blade portion 3.

[0021] As shown in Figure 4, the pruning shears of this embodiment are configured so that the operator can open and close the blades 3, 3 using only one hand. To do this, the operator inserts the thumb of one hand into one of the finger holes 5h and at least one of the remaining fingers of the same hand into the other finger hole 5h.

[0022] The ring portion 5 has an inner arc portion 5a, an outer arc portion 5b, and an upper arc portion 5c. The inner arc portion 5a, the outer arc portion 5b, and the upper arc portion 5c are each formed with an iron core so as to maintain sufficient strength when the blade portions 3,3 are used to trim plants.

[0023] The inner arc portion 5a is the portion that faces the ring portion 5 of the other scissors member 1 when the gap between the pair of blade portions 3, 3 is closed. The inner arc portion 5a is covered with at least one of rubber and resin, for example. This makes it difficult for the operator's fingers to dig into the inner arc portion 5a, even when the operator grips the inner arc portion 5a with force, making the inner arc portion 5a easy for the operator to grip.

[0024] The outer arc portion 5b is located on the opposite side of the finger hole 5h from the inner arc portion 5a. The upper arc portion 5c is located on the opposite side of the ring portion 5 from the side where the support portion 2 is located, and is located between the inner arc portion 5a and the outer arc portion 5b. The upper arc portion 5c may partially overlap with both the inner arc portion 5a and the outer arc portion 5b.

[0025] a pair Extending part (extending side part of gripping parts 6, 6) In the scissors member 1, the ends extend from the outer arc portion 5b to the side opposite to the side where the blade portion 3 is located, and are formed in a shape that widens toward the tip so that they are spaced apart from each other toward the tip. That is, the extending portion and the outer arc portion 5b constitute a gripping portion 6 which is gripped by the operator's hand to rotate the pair of scissors members 1, 1 relative to each other. The gripping portion 6 has an outer arc portion 5b and With the extension part Formed into an integral curved shape 。

[0026] The grip portion 6 has an iron core portion 6a and a covering portion 6b. The iron core portion 6a extends from the outer arc portion 5b to the side opposite the side where the cutting edge 3 is located. The iron core portion 6a is molded integrally with the outer arc portion 5b. The covering portion 6b is made of at least one of rubber and resin, for example, and covers both the outer arc portion 5b and the iron core portion 6a.

[0027] In this embodiment, the covering portion 6b covers the outer arc portion 5b and the iron core portion 6a more thickly as it is farther from the cutting edge 3. Therefore, the covering portion 6b covers the outer arc portion 5b and the iron core portion 6a in the extending tip region of the iron core portion 6a. The base end side of the rounded part 6c The portion covering the outer arc portion 5b is thicker than the portion covering the gripping portion 6. The extension portion includes a portion whose cross-sectional shape becomes thicker as it approaches the tip end of the extension portion. Furthermore, a rounded portion 6c is formed in the extended tip region of the grip portion 6. An operator can grasp the grip portion 6 with the palm of his / her hand placed against the rounded portion 6c (see FIG. 5).

[0028] For example, when an operator wants to cut a thick branch of a plant, he or she holds the gripping portion 6 with both hands as shown in Figure 5. Then, when the operator applies force to the extended tip region of the gripping portion 6 with his or her hands and pushes the pair of handles 4, 4 in the closing direction, a large force is easily applied to the blade portion 3 due to the principle of leverage. The cross-sectional shape of the extension portion is formed to be thicker as it approaches the tip end of the extension portion. This configuration makes it easier for the operator to firmly grasp the extended tip region of the gripping portion 6.

[0029] The reinforcing member 7 has an upper arc portion 5c and Extending part ( Gripping part 6 (extension part of In other words, the reinforcing member 7 extends from the upper arc portion 5c to the extended tip end of the grip portion 6. Extending part ( Gripping part 6 (extension part of The extended tip of the gripping portion 6 is reinforced so as to prevent deformation (buckling) of the extended tip.

[0030] Finger holes 8 are formed by upper arc portion 5c and reinforcing member 7. For example, an operator's little finger can be inserted into finger hole 8. Therefore, for example, with the index finger, middle finger, and ring finger inserted into finger hole 5h and the little finger inserted into finger hole 8, the operator can firmly grip gripping portions 6, 6 with both hands.

[0031] [Uses and effects of the pruning shears of this embodiment] Nowadays, it is common to use hedge trimmers to trim plants. For this reason, hedge trimmers are used for the initial trimming work, and many of the thick branches are cut off during this initial trimming work. After the initial trimming work, pruning shears are mainly used for fine work such as finishing the cut ends of branches and leaves neatly.

[0032] In conventional pruning shears such as that described in the above-mentioned Patent Document 1, the pivot point of the pair of shears members is biased toward the blades, and the handle is long. As a result, in places where it is difficult to move or where there are thick branches and leaves, the handle tends to get caught on the branches and leaves or the handle cannot be opened sufficiently, making it difficult for the operator to use the pruning shears.

[0033] In the pruning shears of this embodiment, the support portion 2 pivotally supports the pair of scissors members 1,1 at the longitudinal center region of each of the pair of scissors members 1,1. The longitudinal length of the pair of handle portions 4,4 is shorter than the length of the handles of the conventional pruning shears. In other words, the longitudinal length of the pair of handle portions 4,4 is kept approximately the same as the longitudinal length of the blade portion 3. Therefore, even in places where it is difficult to move or where there are thick branches and leaves, the pair of handle portions 4,4 are less likely to get caught on branches and leaves and are easy to open. This improves the operator's workability.

[0034] Furthermore, because the longitudinal length of the pair of handles 4, 4 is shorter than the length of the handles of the conventional pruning shears, the moment of inertia when the pair of handles 4, 4 open and close is reduced. This makes it possible to open and close the pair of handles 4, 4 with less effort, improving the operability of the pruning shears and further reducing fatigue for the operator.

[0035] In addition, as described above, the pair of handles 4, 4 of the pruning shears of this embodiment are compact, so they can be easily stored in a carrying case attached to the worker's waist belt, for example, thereby improving the portability of the pruning shears.

[0036] Each of the pair of handles 4, 4 is provided with a ring portion 5. This allows the operator to operate the pair of handles 4, 4 with one hand, and to easily reach into narrow spaces where it is difficult to reach both hands to perform pruning work.

[0037] When pruning with one hand, commercially available gardening shears may be used. However, the blade length of gardening shears is often approximately 50 to 65 millimeters, and the area that can be pruned at one time is smaller than that of pruning shears. As a result, the number of pruning operations increases when using commercially available gardening shears, placing a strain on the worker's arms. On the other hand, the blade length of the blade portion 3 of the pruning shears of this embodiment is equivalent to that of so-called "large scissors." As a result, the area that can be pruned at one time with the pruning shears of this embodiment is equivalent to that of conventional pruning shears. In other words, the pruning shears of this embodiment can be held in one hand like commercially available gardening shears, while still allowing for wide pruning at the same time as conventional pruning shears. This configuration enables efficient work, such as hand-squeezing (squeezing and cutting leaves with one hand).

[0038] Furthermore, the center of gravity of the pruning shears of this embodiment is located between the support part 2 and the ring parts 5, 5. In other words, the center of gravity of the pruning shears is biased toward the side where the handle parts 4, 4 are located relative to the support part 2. This stabilizes the balance of the center of gravity when the operator grips the pair of handle parts 4, 4.

[0039] When finishing the cut of a tree branch, it may be possible that the branch is too hard to finish with one hand. In such cases, the worker grasps the pair of gripping portions 6, 6 with both hands and applies force to push the pair of handles 4, 4 from both sides. This allows the worker to finish the cut of the branch even if the cut is hard. For example, if the tree is small, the worker can complete the tree trimming work with the pruning shears of this embodiment without using a hedge trimmer.

[0040] Gripping part 6 The cross-sectional shape of the extension portion is formed to be thicker as it approaches the tip end of the extension portion. In addition, a rounded portion 6c is formed at the extending tip of the grip portion 6. This makes it difficult for the worker's hands to dig into the grip portion 6 when the worker presses the pair of handle portions 4, 4 from both outside, allowing the worker to apply force firmly without feeling pain in the hands. At this time, the grip portions 6, 6 are pressed from both outside, but the grip portion 6 is supported by the reinforcing member 7. The reinforcing member 7 prevents the grip portion 6 from deforming (buckling).

[0041] Furthermore, the reinforcing member 7 covers the valley area (the area of ​​the finger hole 8) between the grip portion 6 and the upper arc portion 5c of the ring portion 5. For example, when an operator carries the pruning shears and moves through a thicket of branches and leaves, there is a risk that the branches and leaves of the plant may become caught in the valley area. However, the branches and leaves are caught by the reinforcing member 7 and slide along the reinforcing member 7 to be released from the pruning shears. In other words, the reinforcing member 7 reduces the risk that the branches and leaves of the plant may become caught in the area of ​​the finger hole 8.

[0042] As described above, the pruning shears of this embodiment have gripping portions 6, 6 for use with both hands and ring portions 5, 5 for use with one hand, relative to the blade portion 3, allowing for two different operations, both with both hands and with one hand, with one pair of pruning shears. Therefore, the pruning shears of this embodiment are superior in operability, lightness, and portability compared to conventional pruning shears such as those exemplified in Patent Document 1. This allows for smooth pruning operations by the operator.

[0043] Another embodiment The present invention is not limited to the configurations exemplified in the above-described embodiments, and other representative embodiments of the present invention will be exemplified below.

[0044] (1) The pair of blade portions 3, 3 may be configured as curved blades that are curved in one direction.

[0045] (2) The cross-sectional shape of the extended tip region of the grip portion 6 and the cross-sectional shape of the base end region of the grip portion 6 may be the same or approximately the same.

[0046] (3) In the above-described embodiment, the support part 2 pivotally supports the pair of scissors members 1, 1 in the longitudinal central region of each of the pair of scissors members 1, 1. The support part 2 may pivotally support the pair of scissors members 1, 1 in a region biased toward the side where the handle part 4 is located. In this case, the blade part 3 may be longer than the handle part 4.

[0047] (4) The ring portion 5 does not have to be coated with, for example, rubber or resin, and may be made of only a metal material such as iron. Also, the grip portion 6 does not have to be provided with the coated portion 6b, and may be made of only a metal material such as iron.

[0048] (5) The pruning shears of this embodiment are used for pruning plants, but may also be used for cutting and processing plants other than plants (for example, grass, etc.) (for example, cutting grass when laying turf).

[0049] The configurations disclosed in the above-described embodiments (including other embodiments, the same applies hereinafter) can be applied in combination with the configurations disclosed in other embodiments, unless a contradiction arises. Furthermore, the embodiments disclosed in this specification are merely examples, and the present invention is not limited to these, and can be modified as appropriate within the scope of the present invention. [Industrial Applicability]

[0050] The present invention is applicable to pruning shears. [Explanation of symbols]

[0051] 1: Scissors member 2: Support part 3:Blade part 4: Handle 5: Ring section 5a: Inner arc part 5b: Outer arc part 5c: Upper arc part 5h: Finger hole 6: Grip part 7: Reinforcement member

Claims

1. a pair of scissors members each having a blade portion for pruning plants and a handle portion for being held by an operator; a support portion that pivotally supports the pair of scissors members between the blade portion and the handle portion so that the scissors members can rotate relative to each other; The handle portion of each of the pair of scissors members has a ring portion that forms a finger hole that can receive the insertion of the operator's finger, and an extension portion that extends from the ring portion to a side opposite to the side on which the blade portion is located, In the ring portion, a portion that faces the ring portion of the other scissors member when the gap between the pair of blade portions is closed is defined as an inner arc portion, and a portion that is positioned on the opposite side of the inner arc portion across the finger hole is defined as an outer arc portion, The extension portion and the outer arc portion form a gripping portion that is held by the operator's hands to rotate the pair of scissors members relative to one another.

2. Hedge shears as described in claim 1, wherein the extension portion extends from the outer arc portion to the side opposite to the side on which the blade portion is located.

3. The pruning shears according to claim 1 or 2, wherein the gripping portion includes a portion whose cross-sectional shape becomes thicker as it approaches the tip end of the extending portion.

4. 3. The hedge shears according to claim 1, wherein the support portion pivotally supports the pair of scissors members at a central region in the longitudinal direction of each of the pair of scissors members.

5. 3. The pruning shears according to claim 1 or 2, further comprising a reinforcing member extending from an upper arc portion of the ring portion located on the side opposite to the support portion to the extended tip of the extended portion, and connected to each of the upper arc portion and the extended tip.

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