JP2000333535A - Horticultural scissors - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide horticultural scissors which can grasp cut pieces without enlarging the horticultural scissors, by disposing an auxiliary tool having a U-shape cross section to cover the first blade and grasping the cut pieces between the second blade and the side walls of the auxiliary tool. SOLUTION: The horticultural scissors comprise the first half body 10 and the second half body 12 which are openably bound to each other on a support shaft 14. The first half body 10 comprises the first blade 16 and the first handle 18, and the second half body 12 also comprises the second blade 20 and the second handle 22. An auxiliary tool 24 having a U-shaped cross section is disposed to cover the first blade 16. The auxiliary tool 24 comprises a pair of side walls 26, 28 and a connection portion 30. When a branch and leaves are nipped with the horticultural scissors, the branch and leaves 50 are firmly held with the second blade 20 and the tips of a pair of the side walls 26, 28, and then cut. The cut pieces 52 are nipped and held between the side walls 28 and the second blade 20.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to horticultural scissors in which a piece is grasped so as not to drop, and more particularly to a horticultural scissor which is suitable for pruning relatively fine and dense branches and leaves.

[0002]

2. Description of the Related Art There are known various types of scissors and horticultural scissors for holding a piece so as not to drop it. As a well-known device, there is a device provided with a pair of separate gripping portions for gripping a piece in addition to a pair of blades (for example, Japanese Utility Model Registration No. 3021578). Alternatively, a device in which a grip portion is brought into close contact with each of a pair of blades is also known (for example, Japanese Utility Model Laid-Open No. 60-67049).

[0003] Also, as relevant to the present invention,
There is also known one having a grip portion having a U-shaped cross section (for example, Japanese Utility Model Laid-Open Publication No. 1-13945 and Japanese Utility Model Laid-Open Publication No. 1-38929). However, this conventional example,
One of the pair of gripping portions has a U-shape, and the other gripping portion facing the U-shape is still required.

[0004]

In the above-mentioned conventional gardening scissors, a pair of gripping portions are provided for gripping the cut ends, so that the entire scissors are likely to be large in size, such as potted flowers and houseplants. It is not suitable for pruning relatively dense and dense branches and leaves. Also, in this kind of conventional gardening scissors, since the gripping portion is provided only on one side of the cutting plane where the pair of blades mesh, the gardening scissors become large only on the side where the gripping portion is provided, This gripper is an obstacle for relatively fine work.
Furthermore, most of conventional gripping parts do not have a function of grasping and holding a branch and a leaf before cutting, and even if such a function is provided, the branch and the leaf can be grasped only on one side of the cutting plane. Therefore, the function of holding the cut portion in advance was insufficient.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a relatively small gardening scissor which can grasp a piece and cut it. It is another object of the present invention to provide a relatively small garden scissors capable of holding a cutting portion of a branch in advance on both sides of a cutting plane where a pair of blades mesh.

[0006]

The horticultural scissors of the present invention are provided with an auxiliary tool so as to cover the first blade in order to grasp the cut end. The aid extends in the longitudinal direction of the first blade and includes a pair of side walls facing each other and a connecting portion connecting the side walls to each other. Thereby, the cross-sectional shape is U-shaped. The distance between the inner surfaces of the pair of side walls is substantially equal to the sum of the thickness of the first blade and the thickness of the second blade. Of the pair of side walls, the side wall that is closer to the second blade when the gardening scissors are closed is elastically deformable in a direction to increase the distance between the inner surfaces of the pair of side walls. The cut end can be held between the side wall and the second blade by this elastic deformation. The connecting portion of the assisting tool is opposed to the spine of the first blade, and the U-shaped opening is open toward the second blade. An auxiliary tool is urged by a spring means in a direction in which the connecting portion faces the back of the first blade. In a state where the gardening scissors do not sandwich the cutting object, in a plane perpendicular to the longitudinal direction of the first blade, the tips of the pair of side walls of the assisting tool are
It protrudes forward from the cutting edge of the first blade. Thus, before cutting, the object to be cut can be supported at three points by the tips of the pair of side walls of the auxiliary tool and the second blade.

When cutting an object to be cut with these gardening scissors,
When the object is gradually closed from the open state, first, the object to be cut is supported at three points by the tips of the pair of side walls of the auxiliary tool and the second blade, and the object to be cut is held in a curved state. Thereafter, the cutting object is cut. After the cutting, the cut end is in a state of being gripped by one side wall of the assisting tool and the second blade. One side wall of the assisting tool is elastically deformed in a direction in which it is pushed into the cut end and opens outward. The cut ends are firmly held by the elastic restoring force.

[0008] The assisting device can be made of a thin plate.
The pair of side walls sandwich the first blade and the second blade. Therefore, even if an auxiliary tool for gripping the scrap is attached to the garden shears, the overall thickness of the garden shears does not increase so much. Therefore, even when horticultural scissors are inserted between the finely dense branches and leaves for work, the auxiliary tools hardly hinder the work. Further, since the object to be cut can be firmly held in advance before cutting, the object can be cut at an accurate cutting position as intended, and the object to be cut is always almost perpendicular to the cutting blade, which facilitates cutting.

As a spring means for urging the auxiliary tool, a compression coil spring is appropriate, but a U-shaped leaf spring or a linear bending spring may be used due to the limitation of the mounting space. .

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing an embodiment of the present invention, and FIG. 2 is a plan view thereof. In FIG. 1, the compression coil spring 36 shown in FIG. 2 is omitted. In FIG. 1 and FIG. 2, the horticultural scissors are a first blade 1.
0 and the second blade body 12 are connected at the support shaft 14 so as to be freely opened and closed. The first blade body 10 includes a first blade 16 and a first handle 18, which are integrated. The second blade body 12 includes a second blade 20 and a second handle 22,
These are integrated. The first blade body 10 has an auxiliary tool 2
4 are provided. The assisting tool 24 includes the first blade 16
Have a U-shaped cross section perpendicular to the longitudinal direction, and are combined so as to cover the first blade 16.

FIG. 3 is a perspective view of the assisting tool 24. The auxiliary tool 24 has a pair of side walls 26 and 28 extending in the longitudinal direction of the first blade 16 (see FIG. 2) and facing each other. Then, the side walls 26 and 28 are connected to the connecting portion 30 (FIG. 1).
). In this embodiment, the pair of side walls 26 and 28 and the connecting portion 30 are integrally formed by bending a single thin metal plate. The distance D between the inner surfaces of the pair of side walls 26 and 28 is substantially equal to the sum of the thicknesses of the first blade body 10 and the second blade body 12. Since the assisting tool 24 is made of a relatively thin metal plate as described above, the side walls 26 and 28 extend in the direction in which the distance D increases.
Can be elastically deformed. Furthermore, it is necessary that at least the side wall 28 (the side wall that approaches the second blade when the gardening scissors are closed) be elastically deformable. In this embodiment, which side wall 2 is used.
6, 28 can also be elastically deformed to the same extent. A pair of side walls 2
The blades 6 and 28 are guided by the blades 16 and 20 so as to sandwich the first blade 16 and the second blade 20 from outside. Therefore, even if the side walls 26 and 28 are formed of a thin plate, the side walls 26 and 28 do not bend, and a stable gripping operation can be performed in a small space. As can be easily seen from FIG. 4, since the auxiliary tool 24 is made of a thin plate, the overall thickness of the gardening shears does not increase so much. As shown in FIG. 1, a rectangular through hole 31 is formed in the connecting portion 30, and the second blade body 12 passes through the through hole 31.

The material of the auxiliary tool 24 is preferably a stainless steel plate or phosphor bronze having toughness and corrosion resistance. Explaining the prototype gardening scissors, if the blade has a thickness of 3 mm, a stainless steel plate with a thickness of 0.6 mm is used as an auxiliary tool 2
4 was made. For a blade having a thickness of 5 mm, a stainless steel plate having a thickness of 1.0 mm is used for the auxiliary tool 2.
4 was made. Using these gardening shears, the diameter is 6mm
When the following leaves were cut, the function of holding the cut pieces was sufficient.

In FIG. 2, a compression coil spring 36 is inserted between an end (lower end in FIG. 2) of the assisting tool 24 and a portion of the first blade body 10 closer to the handle 18 than the support shaft 14. I have. This compression coil spring 36 is used for the auxiliary tool 2 in FIG.
A force is applied to the auxiliary tool 24 so as to rotate the support 4 clockwise around the support shaft 14. Thereby, as shown in FIG. 5, the connecting portion 30 of the assisting tool 24 is attached to the back 32 of the first blade 16.
It is urged in the direction toward. One end of the compression coil spring 36 is hooked on a protrusion 38 (see FIG. 3) at the end of the auxiliary tool 24, and the other end of the compression coil spring 36 is connected to the first blade 1.
0 projection 40 (see FIG. 1).

FIG. 4 is a sectional end view taken along line AA of FIG. The support shaft 14 includes a head portion 42, a shaft portion 43, and a screw portion 44.
It has. The support shaft 14 passes through the first spacer 46, the first blade body 10, the second blade body 12, and the second spacer 48 in order. A nut 50 is fixed to the screw portion 44. Through holes 2 formed in side walls 26 and 28 of auxiliary tool 24
7 and 29 (see also FIG. 3)
6 and 48 are slightly larger than the outer diameter.
4 can swing freely around the spacers 46 and 48. The thickness of the spacers 46, 48 depends on the side walls 26, 2
8, so that an axial gap is ensured so that the auxiliary tool 24 can swing freely.

FIG. 5 is a sectional end view taken along the line BB of FIG. 2 (cut along a plane substantially perpendicular to the longitudinal direction of the first blade 16). The connecting portion 30 of the assisting tool 24 is the first blade 1
6 is opposed to the back 32. The U-shaped opening portion is open toward the second blade 20. Then, when the gardening scissors do not sandwich the branches and leaves, the tips of the pair of side walls 26 and 28 of the auxiliary tool 24 protrude forward by a distance L from the cutting blade 34 of the first blade 16. The distance L is suitably about 1/3 to 1/2 of the thickness of the blades 16 and 20.
If it is larger than this, the blade will perform useless movement when opening and closing the blade. If it is smaller than this, the function of the auxiliary tool 24 may not function for unevenness or bending on the surface of the branch. The distance L is generally about 1 to 3 mm.

Next, the operation of the gardening shears will be described. FIG.
(A) is a cut end view showing a state in which the garden scissors of FIG. This cut end view is an end view cut at the line BB in FIG. 2 and is viewed from the near side of a person holding gardening scissors. When the horticultural scissors are gradually closed from the open state, the branches and leaves 50 first become the tips of the pair of side walls 26 and 28 of the auxiliary tool 24 and the cutting blades 21 of the second blade 20 therebetween.
Are supported at three points. When the gardening shears are further closed, the branch 50 is curved while being firmly supported at three points. In this state, the cut portion of the branch 50 is substantially perpendicular to the cutting blade, and cutting is easy. When the gardening shears are further closed, the second blade 20 and the first blade 16 are engaged with each other, and the curved branch 50 is cut. During cutting, the assisting tool 24 is pressed against the branch 50 and rotates counterclockwise in FIG. 2 relative to the first blade 16 against the restoring force of the compression coil spring 36. In other words, the first blade 16 moves forward with the auxiliary tool 24 left behind.

In FIG. 6B, the cut piece 52 after the cutting is shown.
Is sandwiched between the second blade 20 and one side wall 28 of the assisting tool 24 and is held as it is. That is, piece 5
2 does not fall. Further, one side wall 28 of the assisting tool 24 is cut into the cut end 52 and elastically deforms outward as indicated by an arrow 54. The cut end 52 is held between the cut edge 52 and the second blade 20 by the elastic restoring force at that time. 6B, the garden scissors are brought to the hand, and the garden scissors are opened, so that the scrap 52 can be removed. Therefore, the scrap 52 can be collected after being brought to the hand without dropping the scrap 52 at the cut position.

This gardening shears has a user-friendly direction. For example, if it is assumed that the gardening scissors are held by the right hand and the auxiliary tool 24 is cut upward to cut the horizontal branches and leaves, after the cutting, the branch and leaf portion on the left side of the cut portion is held by the auxiliary tool. Therefore, in such a use state, the branches and leaves may be cut such that the tip side of the branches and leaves is on the left side of the gardening shears and the root side of the branches and leaves is on the right side of the gardening shears. that way,
It can be held with gardening shears without dropping the pieces. Conversely, when cutting the branches and leaves so that the tip side of the branches and leaves is on the right side of the gardening shears and the root side of the branches and leaves is on the left side of the gardening shears, after cutting, the root side of the branches and leaves are held by the gardening shears, and the cut ends Will fall.

The horticultural scissors are provided with cut ends 52 along the cross-sectional shape of the second blade 20 inside the U-shaped grooves of the auxiliary tool 24.
Can be pinched so as to be rolled up, so that the piece can be held firmly as compared with the related art in which the piece is simply sandwiched in a plane using a pair of grip portions.

[0020]

According to the gardening scissors of the present invention, an auxiliary tool having a U-shaped cross section is provided so as to cover the first blade, and a cut end is formed between the side wall of the auxiliary tool and the second blade. Since the horticultural scissors are gripped, the horticultural scissors can be configured to be able to grip the cut pieces without increasing the size. Therefore, this gardening shears is particularly suitable for use between finely dense foliage. In addition, since the cutting target can be firmly held in advance before cutting, the cutting target can be cut at a desired cutting position as desired, and the cutting target is always substantially perpendicular to the cutting blade, so that cutting can be performed. It's easy to do.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a plan view of the gardening shears of FIG. 1;

FIG. 3 is a perspective view of an auxiliary tool.

FIG. 4 is a sectional end view taken along line AA of FIG. 2;

FIG. 5 is a sectional end view taken along line BB of FIG. 2;

FIG. 6 is an operation explanatory view of the gardening scissors of FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 1st blade body 12 2nd blade body 14 support shaft 16 1st blade 18 1st handle 20 2nd blade 22 2nd handle 24 Auxiliary tool 26, 28 Side wall 30 Connecting part 36 Compression coil spring 50 Branch leaves 52 Piece

Claims (2)

[Claims] A first blade having a first blade and a first handle;
Gardening scissors in which a blade body and a second blade body having a second blade and a second handle are openably and closably connected at a support shaft, and have the following features (a) to (g). Gardening shears. (A) An auxiliary tool is provided so as to cover the first blade. (B) The auxiliary tool includes a pair of side walls extending in the longitudinal direction of the first blade and facing each other and a connecting portion connecting the side walls to each other. The cross section of the first blade perpendicular to the longitudinal direction has a U-shape. (C) the distance between the inner surfaces of the pair of side walls is substantially equal to the sum of the thickness of the first blade and the thickness of the second blade; (D) Of the pair of side walls, the side wall on the side approaching the second blade when the gardening scissors are closed is elastically deformable in a direction to increase the distance between the inner surfaces of the pair of side walls. It is. (E) The connecting portion of the assisting tool is opposed to the spine of the first blade, and the U-shaped opening is open toward the second blade. (F) The connecting member is urged by a spring means in a direction toward the back of the first blade. (G) In a state where the gardening scissors do not sandwich the object to be cut, in a plane perpendicular to the longitudinal direction of the first blade, the tips of the pair of side walls of the assisting tool are attached to the first blade. It protrudes forward from the cutting blade. 2. The gardening scissors according to claim 1, wherein the auxiliary tool is swingably attached to the first blade at the support shaft.