JPH0624420U - Weeding tool - Google Patents

Abstract

(57) [Abstract] [Purpose] Easy to assemble, the blade body is not loosely fixed to the handle, and the side surface of the blade body mounting part does not come into direct contact with the pipe, so excessive force acts on the pipe. Without it, there is no protrusion on the pipe. [Configuration] At least two holes 13h in the mounting portion 13
₁ and 13h ₂ are provided in the blade body 11, holes 22ash ₁ and 22ash ₂ are provided in positions corresponding to the two holes, and the first semi-cylindrical portion 22a and the hole of the first semi-cylindrical portion are provided. a stopper 22b which holes 22bsh _1, 22bsh ₂ consists of the second half cylindrical portions provided at corresponding positions,
By inserting the mounting portion of the blade body with the stopper sandwiched so that the two holes are aligned with each other, holes 32h ₁ and 32h ₂ penetrating to positions corresponding to the two holes are provided. The pipe 32 and a fixture 41 such as a rivet which penetrates the holes and fixes the blade body and the stopper to the pipe.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a weeding tool suitable for use when weeding or mowing.

[0002]

[Prior art]

 Conventionally, the weeding tool is one in which the mounting part of the blade body is inserted into the groove of the handle made of a wooden round bar, and then a metal ring is fitted and fixed in the groove part of the round bar, or In some cases, a fitting formed on a blade body was fitted into a groove formed on a round bar made of synthetic resin, and then a rivet or the like was fixed through the fitting portion.

[0003]

[Problems to be solved by the device]

 By the way, in the above-mentioned conventional wooden handle, the blade body is fixed to the handle in order to absorb the water and expand when it gets wet, or to dry and shrink. There was the inconvenience of loosening.

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

The present invention has been made in order to eliminate the above-mentioned inconvenience, and is easy to assemble, the blade body is not loosely fixed to the handle, and the mounting portion of the blade body is Since the side surface does not come into direct contact with the pipe, it is intended to provide a weeding tool that does not exert an unreasonable force on the pipe so that the pipe does not project.

[0006]

[Means for Solving the Problems]

 The weeding tool of the present invention is intended to achieve the above-mentioned object by means of a blade main body having at least two holes in the mounting portion, and holes at positions corresponding to the two holes. A stopper formed of a first semi-cylindrical part and a second semi-cylindrical part having a hole at a position corresponding to the hole of the first semi-cylindrical part, and the mounting part of the blade body being the stopper. By inserting the two holes so that the two holes are aligned with each other, the pipe is provided with a hole penetrating at a position corresponding to the two holes, and the pipe is penetrated through the holes. The blade body and the stopper are fixed to the pipe.

Further, in the present invention, it is desirable that a recess into which the mounting portion of the blade body is fitted is formed on the facing surfaces of the first and second semi-cylindrical portions of the stopper, and further, A bendable connecting portion that connects the two semi-cylindrical portions may be provided at the ends of the stoppers on the sides of the first and second semi-cylindrical portions that are inserted into the pipe. A boss may be formed on one semi-cylindrical portion of the stopper, and a fitted portion into which the boss is fitted may be formed on the other semi-cylindrical portion.

[0008]

[Action]

 In the weeding tool according to the present invention configured as described above, the mounting portion of the blade main body is sandwiched by the first and second semi-cylindrical portions, 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 through the hole of the pipe through the hole of the stopper and the hole of the mount.

Further, since the mounting portion of the blade body is fitted 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 is attached to the pipe. It does not come into direct contact. Further, a boss is formed on one semi-cylindrical portion, and a fitted portion is formed on the other semi-cylindrical portion, and the boss is fitted to the fitted portion through the hole of the mounting portion. As a result, the positions of the holes for inserting the fixing tools are aligned with each other, which facilitates the assembling work.

[0010]

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, and FIG. 3 is a sectional view showing a handle portion of the weeding tool of FIG. 4 is a cross-sectional view showing a cross section taken along the line AA of the blade portion shown in FIG. In these drawings, reference numeral 11 denotes a blade body, which is composed of a blade portion 12 and a mounting portion 13.

Reference numeral 12c denotes 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. Reference numerals 13h ₁ , 13h ₂ and 13h ₃ denote _first to third holes provided in the mounting portion 13, and 13c denotes a first recess provided at the end of the mounting portion 13. The two straight lines forming the cutout portion 12c have a cutout angle of 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 described later, which includes a first semi-cylindrical portion 22a, a second semi-cylindrical portion 22b, a first semi-cylindrical portion 22b and a first semi-cylindrical portion 22b. The second semi-cylindrical portions 22a and 22b are formed by a thin connecting portion 23 that connects them in the radial direction.

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

Reference numerals 22ash ₁ and 22ash ₂ denote fourth and fifth holes provided in the small-diameter portion 22as, and the fourth hole 22ash ₁ is provided at a position corresponding to the first hole 13h ₁ and the fifth hole 22ash ₁ is provided. The 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 . Reference numeral 22asp indicates a first protrusion provided on the small-diameter portion 22as, which engages with the recess 13c.

Reference numerals 22bsh ₁ , 22bsh ₂ , 22bsh ₃ denote sixth to eighth holes provided in the small-diameter portion 22bs, and the sixth hole 22bsh ₁ corresponds to the first and fourth holes 13h ₁ , 22 ash ₁ . provided at corresponding positions, the hole 22Bsh ₂ of the seventh as the fitted portion is provided in a position corresponding to the second hole 13h ₂ and the boss 22Asb, boss 22Asb is passing through the second hole 1 3h ₂ is intended to be fitted, the hole 22Bsh ₃ eighth is provided at a position corresponding to the hole 13h _3, 22ash ₂ of the third and fifth.

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.

Reference numerals 32h ₁ , 32h ₂ , 32h ₃ and 32h ₄ denote 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 holes. And the sixth holes 13h ₁ , 22ash ₁ , 22bsh ₁ are provided at positions corresponding to the 11th and 12th holes 32h ₃ , 32h _{4 and} the 3rd, 5th and 8th holes 13h ₃ , 22ash ₂ , 22 bsh ₃ , respectively.

Reference numeral 32c ₁ denotes 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, mounting will be described. First, the boss 22 asb of the first semi-cylindrical portion 22a is passed through the second hole 13h ₂ of the mounting portion 13, and the first protrusion 22asp is engaged with the first recess 13c.

Then, when the boss 22asb penetrating the second hole 13h ₂ is fitted into the seventh hole 22bsh ₂ of the second semi-cylindrical part 22b, the attachment part 13 is attached to the first and second semi-cylindrical parts. 22a and 22b are sandwiched between them, which makes them ideal.

By fitting the boss 22asb penetrating the second hole 13h ₂ into the seventh hole 22bsh ₂ and engaging the first projection 22asp in the first recess 13c, The first, fourth and sixth holes 13h ₁ , 22ash ₁ , 22bsh ₁ are in agreement, and the third, fifth and eighth holes 13h ₃ , 22ash ₂ , 22bsh ₃ are also in agreement.

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 fitted into the second and third recesses 32c ₁ and 32c _2. , The first, fourth, sixth, ninth, and tenth holes 13h ₁ , 22ash ₁ , 22bsh ₁ , 32h ₁ , 32h ₂ are aligned, and the third, fifth, eighth, and eighth holes are aligned. 11 and 12 of the hole _{13h 3, 22ash 2, 22b sh} 3, 32h 3, 32h 4 also coincide.

With the holes aligned in this manner, the rivet 41 as a fixture is attached to the ninth, fourth, first, sixth and tenth holes 32h.₁, 22ash₁, 13h₁, 22 bsh₁, 32h₂The rivet 41 and the rivet 41 in the eleventh, fifth, third, eighth and twelfth holes 32h.₃, 22ash₂, 13h₃, 22bsh₃, 32h _Four 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 protrusions 22asp of the above, the first, fourth and sixth holes 13h ₁ , 22ash ₁ , 22bsh ₁ are aligned, and the third, fifth and eighth holes 13h ₃ , 22ash ₂ , 22bsh _{3 are} aligned. Also matches.

In addition, the mounting portion 13 and the small-diameter portions 22as and 22bs are inserted into the pipe 32 of the handle 31 and the second and third protrusions 22afp and 22bfp are fitted into the second and third recesses 32c.₁, 32c₂To engage with the first, fourth, sixth, ninth and tenth holes 13h.₁, 22ash₁, 22bsh₁, 32h₁, 32h₂Match, and the third, fifth, eighth, eleventh and twelfth holes 13h₃, 22ash₂, 22bsh ₃ , 32h₃, 32h_FourAlso matches.

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.

Furthermore, 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 12c of the blade main body 11 is applied to the ground, which is the boundary between the grass root and the leaf, and pulled, the boundary between the grass root and the leaf cuts into the notch 12c. come. Therefore, the grass can be efficiently taken up to the root.

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

That is, on the respective facing surfaces of the first semi-cylindrical portion 22a and the second semi-cylindrical portion 22b of the stopper 21 in this embodiment, slightly larger than the shape of the mounting portion 13 of the blade main body 11, In addition, the recesses 22ab, 22bb 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 overlapped so as to sandwich the mounting portion 13, so that the entire peripheral surface of the mounting portion 13 is a stopper. Therefore, the side surface of the mounting portion 13 does not come into contact with the pipe 32.

As a result, even if a lateral force acts on the mounting portion 13 during the weeding operation and the side surface of the mounting portion 13 exerts a lateral force on the pipe 32, the side surface directly contacts. Since this is not done, the pipe 32 is not deformed such as protruding.

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

FIG. 7 shows another embodiment. In contrast to the second embodiment, in which the entire mounting portion 13 of the blade body 11 is covered with the stopper 21, in the present embodiment, the mounting portion 13 is covered. Only the rear end of the above is covered with the stopper 21, and in the other embodiment of FIG. 8, the recesses 22ab and 22bb are extended to the large diameter portions 22af and 22bf and the large diameter portions 22af and 22bf are formed. Ring-shaped cut grooves 22af ₁ and 22bf ₁ are formed, and the tips of the pipes 32 are fitted into the cut grooves 22af ₁ and 22bf ₁ .

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

In addition, in the above-described embodiment, the example in which the fixing tool is the rivet 41 has been described, but it goes without saying that a fixing tool combining a bolt and a nut may be used.

[0038]

[Effect of device]

 According to this invention, as described above, the stopper is inserted into the pipe in a state where the mounting portion of the blade main body is held by the first and second semi-cylindrical portions, and then a fixing tool such as a rivet is inserted from the hole of the pipe into the hole of the stopper. Since the mounting part and the stopper are fixed to the pipe by inserting and fixing through the holes of the mounting part and the mounting part, the blade body is firmly fixed to the pipe and the fixing of the blade body to the pipe is not loosened. .

Further, 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 side force is applied to the mounting part, the pipe is not deformed because the force is not applied to the pipe.

Furthermore, since the stopper is provided with the connecting portion that connects the first and second semi-cylindrical portions, the first and second semi-cylindrical portions of the stopper are not separated and storage and management are easy. 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 attached to the fitted part through the hole of the mounting part. Since they are fitted to each other, the positions of the holes for inserting the fixing tools are aligned with each other, which has the effect of facilitating the assembling work.

[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.