JPH11253050A - Mowing scissors - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain mowing scissors capable of preventing a periphery wall of a handle part from being swelled or cracked by an end face of an inserted plate part by a long-term repeated use by inserting the inserting plate part through a hollow part formed at the handle part and fixing the inserted plate part. SOLUTION: These mowing scissors are produced by pivotally attaching a pair of scissors plates 1 having blade parts 1a and inserting plate parts 1b, at the middle parts by a pivot shaft, inserting the inserting plate parts into handle parts 3 and fixing the inserted plate parts 1b to the handle parts 3 by checking members 9. The handle part 3 is formed out of a pipe material having a partition member 5 connecting facing inner peripheries of the periphery wall member and integrally formed, two hollow parts and a uniform cross section. The inserting plate part 1b is inserted into the one of the two hollow parts, and fixed by bringing the inserting plate part 1b into contact with the partition member 5. At the time, the two hollow parts can be formed out of the two hollow parts having large and small different largeness and the insertion plate part 1b can be inserted into the large hollow part of the two hollow parts and fixed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to turfgrass and weeds,
The present invention relates to cutting scissors used for cutting or pruning flowers and trees.

[0002]

2. Description of the Related Art As a scissors conventional this type pruning, as shown in FIG. 7, a pair with an edge plate portion and the insertion plate part H ₁鋏板H · H
The middle part is pivotally mounted on the pivot so that it can be opened and closed.
_{A structure in which 1} is inserted into and fixed to a handle portion E by a fastening member K is known. Generally, the handle portion E is formed of a round pipe material made of aluminum, and a rivet is used as the fastening member K. is also to form a rivet insertion hole K ₃ in the insertion plate part H ₁ to form a rivet insertion hole K ₁ · K ₂ to the opposite wall of the pre-shank E, these rivet insertion holes K ₁ ·
A rivet is passed through K ₂ and K ₃ , the head is caulked, and rivets are fixed.

[0003]

However, in the case of this conventional structure, the handle portion E is formed of a thin round pipe made of aluminum in response to a demand for weight reduction. or bulging the peripheral wall of the E is the end surface of the insertion plate part H _1, may or cracked, also sometimes shank E from wobbling in the circumferential direction with respect to the insertion plate part H _1, only that There is a disadvantage that the durability may be reduced.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to solve such a problem, and among the present invention, the invention described in claim 1 has a blade plate portion and an insertion plate portion. The middle portions of the pair of scissors plates are pivotally connected to each other by a pivot so as to be openable and closable, and each of the insertion plate portions is fixedly inserted into the handle portion by a fastening member. A partition member for connecting between the peripheral surfaces is integrally formed and formed of a pipe material having a uniform cross section having two hollow portions, and the insertion plate portion is provided in one of the two hollow portions. The cutting scissors are characterized in that an insertion plate portion is fixed by contacting the partition member with the partition member.

[0005] In the invention according to claim 2, the two hollow portions are formed into hollow portions having different sizes, and the larger hollow portion of the two hollow portions is provided with the difference between the two hollow portions. According to a third aspect of the present invention, the outer peripheral surface of the large peripheral wall member forming the large hollow portion is formed as a part of a circular locus. The outer peripheral surface of the small peripheral wall member forming the small hollow portion is also formed as a part of the trajectory of the circle, and a concave portion is formed at the boundary between the outer peripheral surfaces of the large peripheral wall member and the small peripheral wall member. The invention according to claim 4 is characterized in that both end surfaces of the insertion plate portion are formed as mating surfaces matching the inner peripheral surface of the hollow portion into which the insertion plate portion is inserted. The invention according to claim 5 is characterized in that the fastening member is And it is characterized in that obtained by using the blind rivet.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 1 to 6 show an embodiment of the present invention, wherein 1.1 is a scissor plate, which is made of, for example, a ferrous metal such as a forged product. Filling plate part 1b
The pair of scissors plates 1 are crossed, and the middle portions thereof are pivotally connected to each other by a pivot 2 so as to be openable and closable.

Reference numeral 3 denotes a handle portion, in which a peripheral wall member 4 is provided.
The partition member 5 for connecting between the opposing inner peripheral surfaces is integrally formed and is formed of a lightweight pipe material made of aluminum, duralumin, or the like having a uniform cross section and having two hollow portions MM.

In this case, the two hollow portions M and M are formed into hollow portions M _B and M _S having different sizes, and one of the two hollow portions M _B and M _S has a larger size. Hollow part M
The insertion plate portion 1b is inserted through _B and fixed.

[0009] Also, in this case, the outer peripheral surface of the large wall member 4a to form the large hollow portion M _B is formed as part of the locus of a circle C centered on the center point O, the smaller the hollow portion M _B Is formed as a part of the locus of the circle C, and the concave portion 6 extends in the longitudinal direction at the boundary between the outer peripheral surfaces of the large peripheral wall member 4a and the small peripheral wall member 4b. Has formed.

Reference numeral 7 denotes a wig portion, which is formed in a cylindrical shape with a bottom by a synthetic resin, a cylindrical portion 7a is press-fitted to the tip of the handle portion 3, and the insertion plate portion 1b is attached to a disk plate portion 7b. A square hole 7c to be inserted is formed.

Reference numeral 8 denotes a grip portion, which is formed in a cylindrical shape with a bottom by a synthetic resin, and is press-fitted to the base end of the handle portion 3.

Reference numeral 9 denotes a fastening member, in which two blind rivets are used. A rivet insertion hole 4c is formed in the small peripheral wall member 4b in advance, and a rivet insertion hole 1c is also formed in the insertion plate portion 1b. Also, a rivet insertion hole 5a is formed in the partition wall member 5, and the main body 9a of the blind rivet is inserted into the rivet insertion hole 4c and the rivet insertion holes 1c and 5a from the small peripheral wall member 3b side. The insertion plate portion 1b is fixed to the handle portion 3 in such a state that the surfaces thereof are in close contact with the partition wall member 5 by extracting the extraction shaft portion 9b by the above method.

[0013] Also, in this case, formed on the mating surface that matches the inner peripheral surface of the large hollow portion M _B of the end faces N · N of the insertion plate portion 1b as a hollow portion insertion plate portion 1b is inserted And
And both end faces N · N of the insertion plate portion 1b and the inner peripheral surface of the hollow portion M _B is configured to contact.

Since this embodiment has the above configuration,
When the operator grips each handle portion 3 with both hands and opens and closes, the blade plate portions 1a and 1a open and close around the pivot 2 to perform scissors cutting operation, and the blade plate portions 1a and 1a. 1a can cut grass and the like.
Since the partition member 5 for connecting between the opposing inner peripheral surfaces of the peripheral wall member 4 is integrally formed with the inside 3 and is formed of a pipe material having a uniform cross section having two hollow portions MM, The presence of the hollow portions MM can reduce the weight, and the presence of the partition member 5 can increase the second moment of area of the entire handle portion 3, and can be deformed with respect to the round pipe material. Because of the cross section, the bending strength of the entire handle portion 3 can be improved, and the insertion plate portion 1 b is inserted into one of the two hollow portions M, and the insertion plate portion is inserted into the partition member 5. 1b is fixed by contacting the surfaces with each other, so that the load applied to the peripheral wall of the handle portion 3 by the end face of the insertion plate portion 1b caused by the opening / closing operation of the handle portions 3 is applied to the partition wall. The member 5 is shared, and the position of the handle 3 facing the end face of the insertion plate portion 1b bulges. Cracks can be prevented, and the insertion plate portion 1b abuts the partition member 5 with their surfaces in close contact with each other, thereby preventing the handle portion 3 from wobbling in the circumferential direction. The durability of use can be improved, and smooth use can be maintained to improve workability.

[0015] Also, in this case, a large hollow portion of said two of the hollow portion is formed in a different hollow section M _B · M _S sizes to large and small, the two hollow portions M _B · M _S M _B , the insertion plate portion 1b is inserted and fixed.
b inserted and fixed space can be secured, also in this case, the large circumferential wall member 4 to form the large hollow portion M _B
the outer peripheral surface of a is formed as part of the locus of the circle C, the large circumferential wall member 4a together with the outer peripheral surface of the small peripheral wall member 4b which form small hollow portion M _S is also formed as part of the locus of the circle C A concave portion 6 is formed at the boundary between the outer peripheral surface and the small peripheral wall member 4b.
Is formed, so that the operator can feel the grip of the handle parts 3, 3 with less feeling of incongruity than the grip feeling of the cylindrical pipe, making it easier to grasp, and having a concave shape. Due to the presence of the portion 6, a slip-preventing effect can be obtained, and a novel design feeling can be obtained.

[0017] In this case, by forming the arcuate mating surface which is in close contact conform to the inner peripheral surface of the hollow portion M _B which both end faces N · N of the insertion plate portion 1b insertion plate portion 1b is inserted Since the insertion plate portion 1b is in contact with the partition member 5, the handle portion 3 can be prevented from wobbling in the circumferential direction, and the durability in use can be improved. Also, in this case, since the blind rivet is used as the fastening member 9, the insertion plate portion 1 can be operated from one side of the handle portion 3.
b can be fixed to the handle portion 3 by caulking, and the workability of production can be improved accordingly.

The present invention is not limited to the above embodiment, but is designed by appropriately changing the length, size, etc. of the scissors plate 1 and the handle 3.

[0018]

As described above, according to the first aspect of the present invention, a partition member for connecting between the opposing inner peripheral surfaces of the peripheral wall member is integrally formed with the handle portion, so that two parts are formed. Since it is formed of a pipe material having a uniform cross section having a hollow portion, the weight can be reduced by the presence of the two hollow portions, and the second moment of area of the entire handle portion can be reduced by the presence of the partition member. Can be increased, for round pipe material,
Because of the irregular cross section, the bending strength of the entire handle can be improved, and the insertion plate is inserted into one of the two hollow portions, and the insertion plate is brought into contact with the partition member. The partition member bears the load on the peripheral wall of the handle portion due to the end face of the insertion plate portion caused by the opening / closing operation of the handle portion, and the end face of the insertion plate portion of the handle portion accordingly. Can be prevented from bulging out or cracking at the position facing the surface, and since the insertion plate portion is in contact with the partition member, it is possible to prevent the handle portion from wobbling in the circumferential direction. Thus, durability of use can be improved, and smooth use can be maintained, thereby improving workability.

Further, in the invention according to claim 2, the two hollow portions are formed into hollow portions having different sizes, and the larger hollow portion of the two hollow portions is provided with the difference between the two hollow portions. Since the insertion plate portion is inserted and fixed, a space for inserting and fixing the insertion plate portion can be secured. In the invention according to claim 3, the large peripheral wall forming the large hollow portion The outer peripheral surface of the member is formed as a part of the locus of a circle, and the outer peripheral surface of the small peripheral wall member forming the small hollow portion is also formed as a part of the locus of the circle. Since the concave portion is formed at the boundary part of the outer peripheral surface, the grip of the handle portion of the operator is not so much discomfort as compared to the gripping feeling of the cylindrical pipe, and it is easier to grip as much. And the anti-slip effect can be obtained by the presence of the concave part. It can be, it is also possible to obtain a novel design sense.

Further, in the invention according to claim 4, both end faces of the insertion plate portion are formed as mating surfaces matching the inner peripheral surface of the hollow portion through which the insertion plate portion is inserted. In combination with the fact that the insertion plate portion is in contact with the partition member, the shank portion can be prevented from wobbling in the circumferential direction, and the durability of use can be improved. In the invention according to the fifth aspect, since the blind rivet is used as the fastening member, the insertion plate portion can be fastened and fixed to the handle portion by working from one side of the handle portion. Workability can be improved.

As described above, the intended purpose can be sufficiently achieved.

[Brief description of the drawings]

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

FIG. 2 is an overall rear view of the embodiment of the present invention.

FIG. 3 is a partial plan sectional view of the embodiment of the present invention.

FIG. 4 is a partial cross-sectional view of the embodiment of the present invention.

FIG. 5 is a cross-sectional view of a handle according to the embodiment of the present invention.

FIG. 6 is an exploded cross-sectional view of a fastening step according to the embodiment of the present invention.

FIG. 7 is a partial cross-sectional view of a conventional structure.

[Explanation of symbols]

 M hollow part C circle N end face 1 scissor plate 1a blade plate 1b insertion plate 2 pivot 3 handle 4 peripheral wall member 5 partition member 6 concave portion 9 fastening member

Claims (5)

[Claims] An intermediate portion of a pair of scissors plates having a blade plate portion and an insertion plate portion is pivotally connected to a pivot shaft so as to be openable and closable, and each of the insertion plate portions is inserted and fixed to a handle portion by a fastening member. A partition member connecting the opposing inner peripheral surfaces of the peripheral wall members is formed integrally with the handle portion, and the handle portion is formed by a pipe material having a uniform cross section having two hollow portions. Trimming scissors, characterized in that the insertion plate portion is inserted into one of the hollow portions, and the insertion plate portion is fixed to the partition member by contacting the insertion plate portion. 2. The method according to claim 1, wherein the two hollow portions are formed in hollow portions having different sizes, and the insertion plate portion is inserted into and fixed to a large hollow portion of the two hollow portions. The clipping scissors according to claim 1, characterized in that: 3. An outer peripheral surface of the large peripheral wall member forming the large hollow portion is formed as a part of a circular locus, and an outer peripheral surface of the small peripheral wall member forming the small hollow portion is also a part of the circular locus. 3. The cutting scissors according to claim 2, wherein a concave portion is formed at the boundary between the outer peripheral surface of the large peripheral wall member and the small peripheral wall member. 4. The insertion plate according to claim 1, wherein both end surfaces of the insertion plate portion are formed as mating surfaces matching the inner peripheral surface of the hollow portion through which the insertion plate portion is inserted. Pruning shears. 5. The cutting scissors according to claim 1, wherein a blind rivet is used as the fastening member.