JP2571612Y2 - Garden shears - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to planting shears such as pruning shears and cutting shears having blades on both blades for cutting leaves and twigs such as hedges and garden trees. In the following, cutting scissors will be described as an example to facilitate understanding of the present invention.

[0002]

2. Description of the Related Art Generally, mowing scissors have a pair of scissor pieces 1 and 2 rotatably fixed by a shaft 3 as shown in FIG. Part 6,
7 is provided with a handle 8 and the blades 4 and 5 have cutting blades.
Blade portions 4b and 5b are formed together with 4a and 5a. In the drawing, reference numerals 6a and 7a denote stoppers formed to protrude from the supports 6 and 7.

[0005] The cutting scissors shown in FIG.
The basic configuration is the same as that of the cutting scissors shown in (1), and only the cutting blade sides of the blade bodies 4 and 5 are formed in an arc shape, and the opening angle α of the blade portions 4b and 5b of both the cutting blades 4a and 5a extends over the cutting edge 9. Easy to cut 20
It is formed so as to change at about 60 degrees (20 to 40 degrees on the most frequently used cutting edge side).

[0004]

[Problems to be Solved by the Invention] By the way, when cutting the hedges or garden trees, all of the above-mentioned cutting scissors cut the twigs together with the leaves in order to adjust the whole shape, but the twigs grow a little hard or thick. In this case, the twigs can easily escape and become hard to mow.When trying to cut the twigs, a force that pushes the cutting scissors forward and at the same time is required, and excessive force is required for cutting and pruning work. , It also takes time.

On the other hand, in order to cut slightly thick branches which are difficult to cut with the above cutting scissors, cutting scissors having a cutting blade portion for cutting off a branch at the base of a blade body have been proposed (see Japanese Utility Model Publication No. Sho 62-19158). Alternatively, although practically used, this type has the advantage that a twig that is difficult to cut with a blade that cuts leaves and twigs can be cut and cut at the same time as a pruning cutting blade. In the blade section that cuts leaves and twigs other than the above, the problem described above, that is, if the twigs grow a little hard or thick, the twigs are easy to escape and it is difficult to cut, and when trying to cut these twigs, the force to close the cutting scissors At the same time, there is a problem that a force for pushing forward is required, which requires more force than necessary for pruning and pruning operations, and that it takes time and effort.

The present invention has been made to solve the above-mentioned problems, and has an object to cut a plant such as a hedge or a garden tree by using a twig that grows a little hard or thick. It is also to provide plant scissors that can be cut together with the leaves.

[0007]

Means for Solving the Problems To achieve the above-mentioned object, a plant scissor according to the present invention is a plant scissor having blades on both blades. Grooves are formed at predetermined intervals and a notch blade is formed in the blade by the groove.

[0008] In the above planting scissors, the angle between the groove reaching the blade of the cutting blade and the blade of the other blade is formed at 60 to 120 degrees when the opening angle of both blades is 60 degrees or less. May be.

[0009] Further, in the above planting scissors, a cutting blade for branching may be formed at the base of the blade.

[0010]

According to the above construction, the notches are formed at predetermined intervals in the blade of one of the blades, so that the leaves and twigs can be easily cut off. In the captured state and cut between the blades of the other blade, so that when cutting hedges, garden trees, etc. Can be cut, and the pruning work of the plant can be easily performed.

[0011] In addition, it is said that the angle of opening of both blades of a frequently used portion of the planting scissors is set to about 20 to 60 degrees, so that twigs and the like are difficult to escape and are easy to cut. Angle between the groove reaching the edge and the blade of the other blade is 60
When formed at ~ 120 degrees, the capture state of the twigs is ensured and the pruning work of the plant is facilitated as described above, but if it exceeds 120 degrees, things that escape will come out. If you do not extrude it, it will not cut. The opening angle of the blade near the base of the planting scissors must exceed 60 degrees, and the angle between the groove reaching the blade of the cutting blade in this part and the blade of the other blade is 120 degrees. Although it is difficult to form them below, even in this case, they should be formed as small as possible.

Further, by forming a cutting edge for cutting at the base of the blade body, it is possible to cut a relatively thick branch and a twig which is difficult to cut with a blade for cutting a leaf or a twig at the same time as cutting. Efficient pruning work can be performed.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. In the drawings, the same parts as those of the conventional mowing scissors are denoted by the same reference numerals.

(Embodiment 1) FIG. 1 is an explanatory view of cutting scissors according to the present invention.
Is a front view, b is a back view, c is an explanatory view of a state in which the scissors of a are opened, and d is a XX cross-sectional view of c. In the figure, 1, 2,
Are blades 4 and 5 and supporting portions 6 and 7 extended to the opposite side.
And a pair of scissors pieces rotatably fixed by a shaft 3 therebetween. A handle 8 is attached to the support portions 6 and 7,
The blades 4 and 5 are formed with blades 4b and 5b together with the cutting blades 4a and 5a. Further, a groove 10 having a width of about 1 mm reaching the blade portion 4b through the cutting blade 4a is formed at a pitch of about 3 mm on the surface of the blade body 4, and the back surface of the cutting blade 4a is slightly killed to form a predetermined surface together with the blade portion 4b. Notch blades 4c are formed at a pitch.

The cutting scissors are manufactured by punching the scissor pieces 1 and 2 from a steel plate having a thickness of about 3 mm, press-forming the scissor pieces 1 and 2 and cutting the blades 4 and 5 into the cutting blades 4 a and 5 a and the grooves 10. And the like are further polished to form the blade portions 4b and 5b and the notch blade portion 4c. In the drawings, 6a and 7a are supporting portions 6, 7
A stop formed on the surface of the head, and the stop 6a, 7a
Is an inward bulge formed simultaneously with the press molding. Reference numerals 4d and 5d denote outwardly bulging portions formed on the blade bodies 4 and 5 at the same time as the stoppers 6a and 7a at the time of press forming, and constitute a reinforcing structure of the blade bodies 4 and 5. . Note that the overall shape of the scissors pieces 1 and 2 of the mowing scissors of the present invention or the shapes and positions of the stoppers 6a and 7a are not limited to those in this embodiment, but are conventionally known shapes. Is also good.

According to the cutting scissors constructed as described above, the notch blades 4c are provided at a predetermined pitch on the blades 4b of one blade body 4.
Is formed, so that not only the leaves and twigs can be easily cut, but also when cutting the twigs, the notch blade portion 4c captures the twigs and cuts between the blade portions 5b of the other blade body 5. Can be.
Therefore, when cutting a hedge, a garden tree, or the like, the cutting scissors are pushed forward to cut the twigs together with the leaves almost without the cutting force and only by the opening / closing force of the scissors, thereby facilitating the cutting and pruning of the plant.

As shown in FIG. 2, a groove 10 formed on the surface of the blade body 4 of the cutting scissors has an opening angle α between the blade bodies 4 and 5.
When the angle β is 60 degrees or less, the angle β between the groove 10 and the blade portion 5b of the other blade body 5 is preferably set to 60 to 120 degrees (preferably 60 to 90 degrees). Since the blade tip side of the portion 4c is substantially parallel to the blade portion 5b of the blade body 5 and is opened, the effect of capturing twigs cannot be expected. Although the shape of the groove 10 is shown in FIG. 2 as an example of a V-shaped groove, it is not limited to this shape, and may be a semicircular groove, a U-shaped groove, or the like.

The grooves 10 formed on the surface of the blade body 4 of the cutting scissors cut the notch blade portion 4c together with the blade portion 4b by sharply killing the back surface of the cutting blade 4a after sharpening the surface of the cutting blade 4a. In order to form the notch blade part 4c together with the blade part 4b by the same blade sharpening when the blade is used for cutting and when the blade spills, the blade part 4b side is cut off by a very slight backlash. It is formed to a depth at which the portion 4c can be formed. This groove 10
If the length is short and the inclination to the blade portion 4b is large, the backlash must be increased to form the notch blade portion 4c, and if the backlash increases, the blade portion 4b and the notch blade portion 4c and the blade Blade of body 5
The contact with 5b becomes poor and leaves cannot be cut.

FIG. 3 is a front view of another embodiment of the cutting scissors according to the present invention. The cutting scissors shown in FIG.
In addition to the first embodiment, except that cutting scissors formed with a cutting edge 12 for cutting a slightly thicker branch are used as cutting scissors.
The basic configuration is substantially the same as the pruning scissors described in (1).

According to the cutting scissors having the above-described structure, the blade 4b and the notch blade 4c of the blade 4 and the blade 5b of the other blade 5 can enjoy the effects of the first embodiment. Twigs or slightly thicker branches that were difficult to cut between
Can be cut by the cutting blade portion 12 formed on the cutting surface, and can be cut and trimmed without the need for special cutting scissors, so that cutting can be performed efficiently.

[0021]

As described above, according to the planting scissors of the present invention, leaves and twigs are easily cut off, and when cutting a twig, the notch blade portion captures the twig and sets the blade of the other blade body. It can cut twigs together with leaves with almost only the opening and closing force of the scissors without cutting it out so that the planting scissors are pushed forward when cutting hedges, garden trees, etc. Easier to do.

In addition, by forming a cutting blade for cutting at the base of the blade of the planting scissors of the present invention, it is possible to trim relatively thick branches and twigs which are difficult to cut with blades for cutting leaves and twigs. It can be cut at the same time, and efficient pruning work can be performed.

[Brief description of the drawings]

FIG. 1 is an explanatory view of cutting shears according to the present invention,
a is a front view, b is a back view, c is an explanatory view of a state in which the scissors of a are opened, and d is a XX cross-sectional view of c.

FIG. 2 is an explanatory view of the cutting scissors according to the present invention.

FIG. 3 is a front view of another embodiment of the cutting scissors according to the present invention.

FIG. 4 is an explanatory view of conventional cutting shears.

FIG. 5 is an explanatory view of conventional cutting shears.

[Explanation of symbols]

1,2: Scissors piece 3: Shaft 4,
5: Blade 4a, 5a: Cutting blade 4b, 5b: Blade 4c:
Notch blade part 6, 7: Support part 6a, 7a: Stop part 8:
Handle 10: Groove 11: Base 12:
Cutting blade for pruning

Claims (3)

(57) [Scope of request for utility model registration] 1. A planting scissor having blade portions on both blades,
A tree cutting scissors characterized in that grooves are formed at predetermined intervals on the surface of one of the blades and reach the blades of the cutting blades, and the grooves form a notch blade in the blades. 2. The planting scissors according to claim 1, wherein the angle between the groove reaching the blade of the cutting blade and the blade of the other blade is 60 to 120 degrees when the opening angle of both blades is 60 degrees or less. Tree shears formed in the. 3. The scissors according to claim 1, wherein a cutting blade for branching is formed at a base of the blade body.