JPH0729802Y2 - Weeding tool - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a weeding tool suitable for use in weeding or mowing.

[0002]

2. Description of the Related Art Conventionally, weeding tools are fixed by inserting a metal ring into the groove portion of the round bar after inserting the mounting portion of the blade body into the groove of the handle formed of the wooden round bar. What you did
Alternatively, there is one in which a mounting portion of the blade body is fitted into a groove formed in a synthetic resin round bar, and then a rivet or the like is fixed through the mounting portion.

[0003]

By the way, in the above-mentioned conventional wooden handle, when it gets wet, it absorbs water and expands, and when water dries and contracts repeatedly. However, there was an inconvenience that the blade body was loosely fixed to the handle.

Further, the handle made of synthetic resin does not have the drawbacks due to the above-mentioned wooden handle, but since it is attached only by the rivet, the blade body and the handle are separated by the gap between the rivet and the hole through which the rivet passes. There was a problem that there was play between and.

The present invention has been made in order to eliminate the above-mentioned inconvenience, and it is easy to assemble, the blade body is not loosely fixed to the handle, and the side surface of the blade body mounting portion is a pipe. The object of the present invention is to provide a weeding tool which does not come into direct contact with the pipe and therefore does not exert an excessive force on the pipe and thus does not have a protrusion on the pipe.

[0006]

SUMMARY OF THE INVENTION The weeding tool of the present invention is intended to achieve the above-mentioned object. The means is to provide a blade main body having at least two holes in a mounting portion and the two holes in the two holes. A stopper having a first semi-cylindrical portion having a hole provided at a corresponding position and a second semi-cylindrical portion having a hole provided at a position corresponding to the hole of the first semi-cylindrical portion; Attach the mounting part with the stopper to each of the two
By inserting in a state in which the two holes are sandwiched so as to coincide with each other, the pipe having holes penetrating at positions corresponding to the two holes, and the blade main body and the stopper penetrating the holes are formed. It is composed of a fixture for fixing to the pipe.

Further, in the present invention, it is desirable that a recess in which the mounting portion of the blade body is fitted is formed on the facing surface of the first and second semi-cylindrical portions in the stopper, and further, in the stopper. The first and second
A bendable connecting part for connecting the two semi-cylindrical parts may be provided at the tip of the side of the semi-cylindrical part to be inserted into the pipe, and one semi-cylindrical part of the stopper may be provided with a boss. May be formed, and the fitted portion into which the boss is fitted may be formed in the other semi-cylindrical portion.

[0008]

In the weeding tool according to the present invention constructed as described above, the first and second semi-cylindrical portions hold the mounting portion of the blade body, and the stopper is inserted into the pipe in this state. Then, the fixture and the stopper are fixed to the pipe by inserting and fixing a fixture such as a rivet from the hole of the pipe through the hole of the stopper and the hole of the attachment.

Further, since the mounting portion of the blade body is not exposed by fitting the mounting portion of the blade body into the recess formed in the two semi-cylindrical portions of the stopper, the mounting portion directly contacts the pipe. There is nothing to do. Further, a boss is formed on one of the semi-cylindrical portions, and a fitted portion is formed on the other semi-cylindrical portion so that the boss is fitted to the fitted portion through the hole of the mounting portion. Therefore, the positions of the holes for inserting the fixing tools are aligned with each other, which facilitates the assembling work.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to the drawings. 1 is a front view showing a weeding tool according to an embodiment of the present invention, FIG. 2 is a side view of the weeding tool of FIG. 1 seen from the right side,
FIG. 3 is a cross-sectional view showing the handle portion of the weeding tool of FIG. 1, and FIG. 4 is a cross-sectional view showing the cross section of the blade portion shown in FIG. In these figures, 11 indicates the blade body, and the blade portion 1
2 and a mounting portion 13.

Reference numeral 12c designates a notch formed in a row adjacent to the tip of the blade 12, and the notch formed by two intersecting sides (straight lines) is ground from the rear surface 12b to the front surface 12f. It is a thing. 13h ₁ , 13h ₂ and 13h ₃ are first to third holes provided in the mounting portion 13,
Reference numeral 13c indicates a first concave portion provided at the end of the mounting portion 13. In addition, the notch angle of the two straight lines forming the notch portion 12c is about 20 to 40 degrees.

Reference numeral 21 denotes a stopper made of synthetic resin for attaching the blade main body 11 to a handle 31 which will be described later, and includes a first semi-cylindrical portion 22a, a second semi-cylindrical portion 22b, and a first semi-cylindrical portion 22b.
And a thin connecting portion 23 that connects the second semi-cylindrical portions 22a and 22b in the radial direction.

Then, the first and second semi-cylindrical portions 22
The a and 22b are composed of small-diameter portions 22as and 22bs that are inserted into the pipe 32 that forms the handle 31, and large-diameter portions 22af and 22bf that are substantially the outer diameter of the pipe 32.

22ash ₁ and 22ash ₂ are small-diameter portions 2
4th and 5th holes provided in 2as are shown.
2ash ₁ is provided at a position corresponding to the first hole 13h ₁ , and the fifth hole 22ash ₂ is provided at a position corresponding to the third hole 13h ₃ .

Reference numeral 22asb denotes a boss provided on the flat portion of the small-diameter portion 22as, which penetrates the _second hole 13h ₂ . 22asp shows the 1st projection provided in the small diameter part 22as, and it engages with the recessed part 13c.

22bsh ₁ , 22bsh ₂ , 22bsh
₃ indicates the sixth to eighth holes provided in the small-diameter portion 22bs,
The sixth hole 22bsh ₁ has first and fourth holes 13h ₁ ,
The second hole 13b is provided at a position corresponding to 22ash _1, and the seventh hole 22bsh ₂ as a fitted portion is provided at a position corresponding to the second hole 13h ₂ and the boss 22asb.
The boss 22asb passing through h ₂ is fitted,
The eighth hole 22bsh ₃ is the third and fifth holes 13h ₃ ,
It is provided at a position corresponding to 22ash ₂ .

Reference numeral 22afp indicates a second protrusion protruding from the large diameter portion 22af to the small diameter portion 22as, and 22bfp indicates a third protrusion protruding from the large diameter portion 22bf to the small diameter portion 22bs. Reference numeral 31 denotes a handle, which is composed of a pipe 32 made of a metal such as aluminum, and a grip portion 33 attached to one end of the pipe 32.

32h ₁ , 32h ₂ , 32h ₃ and 32
h ₄ indicates ninth to twelfth holes formed in the pipe 32, and the ninth and tenth holes 32h ₁ and 32h ₂ are the first and
Fourth and sixth holes 13h ₁ , 22ash ₁ , 22bs
provided at a position corresponding to h _1, eleventh and twelfth hole 32h _3, 32h ₄ the third, fifth and eighth holes 13
It is provided at a position corresponding to h ₃ , 22ash ₂ , 22bsh ₃ .

Reference numeral 32c ₁ indicates a second concave portion, with which the second protrusion 22afp is engaged. 32c ₂ shows a third concave portion, with which the third protrusion 22bfp is engaged. 41 indicates a rivet.

Next, the mounting will be described. First,
The first semi-cylindrical portion 2 is inserted into the _second hole 13h ₂ of the mounting portion 13.
The boss 22asb of 2a is penetrated, and the first protrusion 22asp is engaged with the first recess 13c.

Then, the boss 22a penetrating the second hole 13h ₂ into the seventh hole 22bsh ₂ of the second semi-cylindrical portion 22b.
When the sb is fitted, the mounting portion 13 is attached to the first and second
The semi-cylindrical parts 22a and 22b are sandwiched between them to form a perfect shape.

By thus fitting the boss 22asb penetrating the second hole 13h ₂ into the seventh hole 22bsh ₂ and engaging the first protrusion 22asp in the first recess 13c, , Fourth and sixth holes 13h ₁ , 22a
sh ₁ and 22bsh ₁ are the same, and the third, fifth and eighth
Hole 13h _3, 22ash _2, 22bsh ₃ also match.

In this state, the mounting portion 13 and the small-diameter portions 22as and 22bs are inserted into the pipe 32 of the handle 31 so that the second and third protrusions 22afp and 22bfp are formed into the second and third recesses 32c ₁ and 32c ₂ . When engaged, the first, fourth, sixth, ninth and tenth holes 13h ₁ , 22
ash ₁ , 22bsh ₁ , 32h ₁ , 32h ₂ coincide with each other, and the third, fifth, eighth, eleventh and twelfth holes 13h
₃ , 22ash ₂ , 22bsh ₃ , 32h ₃ , 32h ₄
Also matches.

With the holes aligned, the rivet 41 as the fixture is attached to the ninth, fourth, first, sixth and tenth holes 32h ₁ , 22ash ₁ , 13h ₁ , 22.
Insert into bsh ₁ and 32h ₂ and rivet 4
1 for the eleventh, fifth, third, eighth and twelfth holes 32h
₃ , 22ash ₂ , 13h ₃ , 22bsh ₃ , 32h ₄
Insert into. Then, one end of the rivet 41 is crushed to fix the blade body 11 and the stopper 21 to the pipe 32.

As described above, according to the embodiment of the present invention, the boss 22asb penetrating the second hole 13h ₂ is fitted into the seventh hole 22bsh ₂ , and the first recess 13c is provided with the first boss 22asb. By engaging the protrusion 22asp of the first,
Fourth and sixth holes 13h ₁ , 22ash ₁ , 22bs
h ₁ coincides with the third, fifth and eighth holes 13 h ₃ , 2
2ash ₂ and 22bsh ₃ are also in agreement.

Further, the mounting portion 13 and the small-diameter portion 22
When as and 22bs are inserted into the pipe 32 of the handle 31 and the second and third protrusions 22afp and 22bfp are engaged with the second and third recesses 32c ₁ and 32c ₂ , the first, fourth and sixth , 9th and 10th holes 13h ₁ and 22ash
₁ , 22bsh ₁ , 32h ₁ , 32h ₂ coincide with each other, and the third, fifth, eighth, eleventh and twelfth holes 13h ₃ , 2
2ash ₂ , 22bsh ₃ , 32h ₃ and 32h ₄ are also in agreement.

Therefore, the rivet 41 can be easily inserted and the assembly can be facilitated. Further, since the blade body 11 and the stopper 21 are fixed by the rivets 41 penetrating the pipe 32, the blade body 11 is not loosely fixed to the handle 31.

Further, since the first semi-cylindrical portion 22a and the second semi-cylindrical portion 22b are connected by the connecting portion 23, the first and second semi-cylindrical portions 22a and 22b do not become separated, It is convenient to store.

Next, the operation will be described. First, when the cutting edge portion of the blade body 11 provided with the cutout portion 12c is applied to the ground, which is the boundary portion between the grass root and the leaf, and pulled, the boundary portion between the grass root and the leaf cuts into the cutout portion 12c. . Therefore, the grass can be efficiently taken up to the root.

FIG. 5 and FIG. 6 show a second embodiment of the present invention, in which the same or corresponding parts as in FIGS. This embodiment is different from the embodiment of FIG. 3 described above in that the structure of the stopper 21 is different.

That is, the stopper 21 in the present embodiment.
Of the first semi-cylindrical part 22a and the second semi-cylindrical part 22b of the mounting part 13
That is, the recesses 22ab and 22bb each having a depth slightly larger than the shape of the mounting portion 13 and having a depth approximately half the thickness of the mounting portion 13 are formed.

By constructing the stopper 21 in this way, the first and second semi-cylindrical portions 22a and 22b are superposed so as to sandwich the mounting portion 13,
The entire peripheral surface of the mounting portion 13 is covered with the stopper 21, and therefore, the side surface of the mounting portion 13 does not come into contact with the pipe 32.

As a result, during the weeding work, the mounting portion 1
Even if a lateral force acts on the pipe 3 and the side surface of the mounting portion 13 applies a lateral force to the pipe 32, the side surface is not in direct contact with the pipe 32. Is something that does not give.

In FIG. 6, the recesses 22ac and 22bc are formed on the outer peripheral surfaces of the first and second semi-cylindrical portions 22a and 22b because the pipe 32 is partially crushed when the head of the rivet 41 is crushed. This is because the rivet 41 can be firmly fixed by being recessed.

FIG. 7 shows another embodiment. In the second embodiment, the stopper 2 is attached to the entire mounting portion 13 of the blade body 11.
In contrast to the case of 1 in FIG.
The stopper 21 covers only the rear end of the concave portion 3 and the concave portions 22ab and 22b in the other embodiment of FIG.
b is extended to the large diameter portions 22af, 22bf and the ring-shaped kerf 22af of the large diameter portions 22af, 22bf is formed.
₁ and 22bf ₁ are formed, and these kerfs 22af ₁ and 2 are formed.
The tip of the pipe 32 is fitted to 2bf ₁ .

Furthermore, in another embodiment of FIG. 9, the stopper 2 is used.
1 as in the previous embodiment, the first and second semi-cylindrical portions 22a, 2
2b is not divided into two, but a cylindrical shape, and a long groove 21a into which the mounting portion 13 of the blade body 11 is fitted is formed. Therefore, in this embodiment, the boss and the fitted portion do not exist.

In the above embodiment, the rivet 41 is used as the fixing tool, but it goes without saying that a fixing tool combining bolts and nuts may be used.

[0038]

As described above, according to the present invention, the stopper is inserted into the pipe while the mounting portion of the blade body is sandwiched by the first and second semi-cylindrical portions, and then the rivet or the like is fixed through the hole of the pipe. By fixing the tool by inserting it through the hole of the stopper and the hole of the attachment part, the attachment part and the stopper are fixed to the pipe, so the blade body and pipe can be firmly fixed and the blade body is fixed to the pipe. Will not sag.

By fitting the mounting portion of the blade body into the recess formed in the two semi-cylindrical portions of the stopper so that the side surface of the mounting portion is not exposed, the mounting portion directly contacts the pipe. Therefore, even if a force from the side surface is applied to the mounting portion, the pipe is not deformed by an unreasonable force.

Further, since the stopper is provided with the connecting portion for connecting the first and second semi-cylindrical portions, the first and second semi-cylindrical portions of the stopper are not separated and are easy to store and manage. For convenience, a boss is formed on one of the semi-cylindrical parts and a fitted part is formed on the other semi-cylindrical part, and the boss is fitted to the fitted part through the hole of the mounting part. Since they are matched with each other, the positions of the holes for inserting the fixing tools are aligned with each other, so that the assembling work can be easily performed.

[Brief description of drawings]

FIG. 1 is a front view showing a weeding tool according to an embodiment of the present invention.

FIG. 2 is a side view of the weeding tool of FIG. 1 viewed from the right side.

FIG. 3 is a cross-sectional view showing a handle portion of the weeding tool.

4 is a cross-sectional view showing a cross section taken along line AA of the blade portion shown in FIG.

FIG. 5 is a front view of a stopper used in the second embodiment of the present invention.

FIG. 6 is a side view of the above.

FIG. 7 is a sectional view of a stopper used in the third embodiment.

FIG. 8 is a sectional view of a stopper used in a fourth embodiment.

FIG. 9 is a sectional view of a stopper used in the fifth embodiment.

[Explanation of symbols]

11 Blade Main Body 12 Blade Part 13 Attachment Part 13h ₁ First Hole 13h ₂ Second Hole 13h ₃ Third Hole 13c 1st Recess 21 Stopper 22a 1st Semi-cylindrical Part 22ab Recess 22as Small Diameter Part 22ash ₁ 1st No. 4 hole 22ash ₂ Fifth hole 22asb Boss 22asp First projection 22af Large diameter portion 22afp Second projection 22b Second semi-cylindrical portion 22bb Recess 22bs Small diameter portion 22bsh ₁ Sixth hole 22bsh ₂ Seventh hole 22bsh ₃ 8th hole 22bf Large diameter part 22bfp 3rd projection 23 Connection part 31 Handle 32 Pipe 32h ₁ 9th hole 32h ₂ 10th hole 32h ₃ 11th hole 32h ₄ 12th hole 32c ₁ 2nd Recessed part 32c ₂ third recessed part

Claims (4)

[Scope of utility model registration request] 1. A blade body having at least two holes in a mounting portion, a first semi-cylindrical portion having holes at positions corresponding to the two holes, and a hole of the first semi-cylindrical portion. By inserting the stopper formed of the second semi-cylindrical portion having a hole at a position corresponding to the position and the mounting portion of the blade main body with the stopper sandwiched so that the two holes are aligned with each other. A pipe provided with a hole penetrating at a position corresponding to the two holes, and a fixture such as a rivet which penetrates each hole and fixes the blade body and the stopper to the pipe. Weeding tool characterized by. 2. A recess formed in the facing surface of the first and second semi-cylindrical portions of the stopper into which a mounting portion of the blade body is fitted is formed.
The weeding tool described. 3. The tip of the stopper on the side of the first and second semi-cylindrical portions to be inserted into the pipe,
The weeding tool according to claim 1 or 2, further comprising a bendable connecting portion that connects the two semi-cylindrical portions. 4. The boss is formed in one semi-cylindrical portion of the stopper, and the fitted portion into which the boss is fitted is formed in the other semi-cylindrical portion. The weeding tool according to any one of 3 to 3.