JPH0951707A - Sickle and whetstone attaching device for sickle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sickle having a fitting part fitted and fixed to the handle of the sickle and a nipping and holding part having the property of a spring and standing from the fitting part, holding a whetstone with the spring force of the nipping and holding part as freely attachable and detachable, capable of whetting the blade in an agricultural working place, not requiring to prepare plural sickles and excellent in handleability. SOLUTION: This sickle has a fitting part fitted and fixed to the handle of a sickle 10, and a pair of nipping and holding parts having the property of a spring and standing from the fitting part, and a whetstone 30 is held by the spring force of the fitted part as freely attachable and detachable. Further, it is preferable to constitute the whetstone attaching device for the sickle 40 by the fitting part for fitting the handle of the aforementioned sickle 1 and a whetstone holding part for holding the whetstone 30.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sickle and a grindstone mounting tool for the sickle.

[0002]

2. Description of the Related Art When a sickle is used for work such as mowing, the blade becomes dull and becomes unsharp when used for a long time, which makes the work difficult. For this reason, the operator can prepare multiple sickles in advance,
Sometimes I carry a whetstone for sharpening a blade to go to a mowing site. In such a case, it is troublesome to prepare a plurality of sickles in advance, and even if the grindstone is carried, it may be lost at the site.

Therefore, a first object of the present invention is to provide a sickle with a grindstone capable of easily sharpening the blade during work on site. Further, the second aspect of the present invention
The purpose of is to provide a sickle whetstone mounting tool capable of mounting a whetstone to a sickle.

[0004]

In order to achieve the first object of the present invention, a sickle according to a first aspect of the invention has a hugging portion that is hug-fixed to a sickle handle and a spring property that rises from the hugging portion. It has a pair of holding parts, and the grindstone can be held freely by the spring force of the holding parts. Further, the sickle according to claim 2 includes a sickle handle having a screw hole or a screw shaft in a proper position, a sickle blade provided at a tip of the sickle handle, and a grindstone for the sickle, and the grindstone has a screw A shaft or screw hole is provided,
It is characterized in that the whetstone can be attached to the sickle handle freely by screwing the screw hole or screw shaft of the sickle handle and the screw shaft or screw hole of the whetstone.

According to the above construction, when the blade becomes less sharp during work, the whetstone can be removed from the sickle handle to sharpen the blade. After sharpening the blade, the whetstone can be attached to the sickle handle, so the whetstone will not be lost. On the other hand, in order to achieve the second object of the present invention, a sickle whetstone mounting tool according to claim 3 is a sickle whetstone mounting tool for mounting a whetstone on a sickle, and embraces a sickle handle. It is characterized by having an embracing part and a whetstone holding part for holding the whetstone.

Further, the sickle grindstone mounting device according to claim 4 is
The grindstone mounting device for a sickle according to claim 3, wherein the embracing portion has springiness and detachably embraces the handle of the sickle, and the grindstone holding portion is provided on a surface of the embracing portion. Was
It is characterized by including a fixing surface for fixing the grindstone.
Furthermore, the sickle whetstone mounting tool according to claim 5 is the sickle whetstone mounting tool according to claim 3, wherein the embracing portion is fixed to a sickle handle, and the whetstone holding portion is a sickle. It has a pair of sandwiching parts having a spring property rising from an embracing part fixed to the handle, and the grindstone is detachably held by the spring force of the sandwiching parts.

With the above arrangement, the whetstone can be removably attached to the sickle handle.

[0008]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. (1) First Embodiment FIG. 1 is a perspective view of an essential part of a sickle with a grindstone according to a first embodiment of the present invention. Referring to FIG. 1, the sickle 1 of this sickle 1
0 is made of wood and has an elliptical cross section so that it can be easily gripped by the hand. A sickle body 20 having a blade 21 is attached to the tip 11 of the sickle handle 10. Further, the sickle handle 10 is provided with a grindstone 30 for sharpening the blade 21. The whetstone 30 is attached to the sickle handle 10 via a whetstone attachment 40. The grindstone mounting tool 40 is formed in a shape that can surround and surround the sickle handle 10. Further, the grindstone 30 is the upper surface 61 of the grindstone mounting tool 40.
It is stuck to.

FIG. 2 is a view as seen from the direction of the arrow A in FIG. Referring to FIG. 1 and FIG.
The grindstone mounting tool 40 can be made of, for example, spring steel, and has a substantially cocoon-shaped cross section. As shown in FIG. 2, the sectional shape of the grindstone mounting tool 40 is not a so-called closed section but an open section having an opening 421 on the lower surface 42 side. Further, the portions 422 and 423 that partition the opening 421 are folded back to the outside. this is,
This is to increase the rigidity of the grindstone mounting tool 40.

The grindstone mount 40 is elastically deformable in the direction of the white arrow in FIG. Therefore, the grindstone mounting tool 4
Once 0 is opened to the outside and the sickle handle 10 is inserted, the elasticity of the whetstone attachment 40 allows the whetstone attachment 40 to be attached with the sickle handle 10 being sandwiched. In other words, the sickle handle 1 is formed by the inner surface of the whetstone attachment 40.
The whetstone mounting tool 40 can be hugged with respect to the sickle handle 10.
Further, the upper surface of the grindstone mounting tool 40 constitutes a fixed surface 41 for fixing the grindstone 30. The grindstone 30 is fixed to the fixed surface 41 with an adhesive 31, for example,
It is attachable to and detachable from the sickle 1 together with the grindstone fitting 40. However, without using the adhesive 31, the grindstone mounting tool 40
It is also possible to form a recess for fitting the grindstone 30 in the fixed surface 61 and press-fit into the recess.

According to this embodiment, the sickle handle 10 can be obtained by simply spreading the whetstone mounting tool 40 outward by hand and fitting it into the sickle handle 10.
The grindstone 30 can be attached to the. Further, the whetstone 30 can be removed by manually spreading the whetstone mounting tool 40 outward. As described above, according to the sickle 1 according to the present embodiment, since the grindstone 30 can be always removably attached, even if the sharpness of the blade 21 is deteriorated at the site of agricultural work such as mowing, The blade can be sharpened immediately during work such as mowing on site. As a result, the operator does not need to prepare a plurality of sickles in advance or carry a whetstone for sharpening the blade to go to the site, which is very convenient.

(2) Second Embodiment FIG. 3 is a perspective view of a main part of a sickle with a grindstone according to a second embodiment of the present invention. FIG. 4 is a B-arrow view in FIG. With reference to FIGS. 3 and 4, the present embodiment is different from the first embodiment in the shape of the grindstone mounting tool 50, and as shown in FIG. 4, its cross section is formed into a substantially gourd shape. In point. 3 and 4, the same components as those in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted.

The grindstone mounting device 50 has an embracing portion 51 attached to the sickle handle 10 and a grindstone holding portion 52 which is continuous with the embracing portion 51 and can hold the grindstone 30. The embracing portion 51 has a bottom plate portion 511 and a pair of curved portions 512 and 513, and is formed in a shape capable of enclosing and embracing the periphery of the sickle handle 10. That is, this embracing part 51 is
In FIG. 4, elastic deformation is possible in the direction of the arrow, and once the curved portions 512 and 513 are elastically opened outward and the sickle handle 10 is inserted, the elasticity of the curved portions 512 and 513 causes the sickle handle 10 to move. It can be sandwiched.

The grindstone holding portion 52 includes a pair of holding pieces 521.
522. One of the sandwiching pieces 521 is curved in an arc shape, and in the state of protruding outward, the bending portion 51 is formed.
It has been extended to 2. The other sandwiching piece 522 is also curved in an arc shape, and is extended to the curved portion 513 while protruding outward. That is, the sandwiching pieces 521, 52
2 are also arranged symmetrically to each other. Therefore, the whetstone holding portion 52 can be elastically deformed in the direction of the white arrow in FIG.
When 2 is elastically opened to the outside and the grindstone 30 is inserted, the elastic deformation is restored by the elasticity of the holding pieces 521 and 522, and as a result, the whetstone 30 is held by the whetstone holding portion 52.

Further, in the present embodiment, the whetstone holding portion 52 is provided with a guide portion 60 for guiding the insertion of the whetstone 30. The guide part 60 has a pair of flat plates 61 and 62, one flat plate 61 is extended to the sandwiching piece 521, and the other flat plate 62 is extended to the sandwiching piece 522. The flat plates 61 and 62 are symmetrically arranged with a predetermined inclination, and form a so-called funnel.

According to the present embodiment, the whetstone mounting tool 50 is spread outward by hand to fit the embracing part 51 to the sickle handle 10.
Next, the grindstone mounting tool 50 is again expanded outward and elastically deformed, and the grindstone 30 is inserted into the grindstone holding portion 52. Thereby, the grindstone 30 is sandwiched between the grindstone holding portions 52, and the sickle handle 10
Can be attached to. On the other hand, the whetstone 30 can be removed by expanding the whetstone mounting tool 50 to the outside again. As described above, also in this embodiment, the grindstone 30 can be always removably attached, and the blade sharpening work can be performed at the agricultural work site. As a result, the operator does not need to prepare a plurality of sickles in advance or carry a whetstone for sharpening the blade to go to the site, which is very convenient.

In the first and second embodiments, the grindstone mounting tools 40 and 50 are attachable to and detachable from the sickle handle 10. However, the structure is always fixed to the sickle handle 10. You can also For example, the whetstone mounting tools 40 and 50 fitted in the sickle handle 10 may be attached to the sickle handle 1 using adhesive or screws.
It can stick to zero. In addition, the grindstone fittings 40, 5
In addition to being made of spring steel, 0 can be made of synthetic resin or the like having springiness (elasticity). Further, in the second embodiment, the embracing portion 51 and the grindstone holding portion 52 are integrally configured, but they may be separate bodies and may be connected to each other by using, for example, a screw or the like.

(3) Third Embodiment FIG. 5 is a perspective view of an essential part of a sickle with a grindstone according to a third embodiment of the present invention. With reference to FIG. 5, a feature of this embodiment is that the grindstone 70 is directly attached to the sickle handle 10. In FIG. 5, the same components as those in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted.

The grindstone 70 has a base member 71 and a grindstone body 72 fixed to the base member 71. The base 71 is
It has a flat plate 711 and an engaging rod 712 projectingly provided on the lower surface of the flat plate 711. A male screw 713 is formed on the peripheral surface of the engaging rod 712. The grindstone body 72 is fixed to the upper surface of the flat plate 71 using, for example, an adhesive. On the other hand, the so-called blind nut 1 is attached to the sickle handle 10.
3 is embedded. A female screw 131 is formed on the blind nut 13.

According to this embodiment, the whetstone 70 can be directly attached to the sickle handle 10 by screwing the engagement rod 712 into the blind nut 13 to engage them with each other. Also, by turning the whetstone 70 attached to the sickle,
The grindstone 70 can be easily removed. Therefore, the same effect as that of the first embodiment can be obtained. In the present embodiment, the whetstone 70 and the sickle handle 10 are engaged by screwing the engagement rod 712 into the blind nut 13, but a part of the whetstone 70 is provided at a predetermined portion of the sickle handle 10. The grindstone 70 and the sickle handle 10 can be engaged with each other by fitting them into the holes. Alternatively, a screw hole may be provided on the grindstone 70 side and a screw rod may be provided on the sickle handle 10 side so that the both are screwed together. Further, the position where the blind nut 13 is embedded can be freely set at an appropriate position, for example, a position where the operator can use it easily.

[0021]

According to the first or second aspect of the present invention,
Since the grindstone is detachably equipped, it is possible to remove the grindstone and sharpen the blade of a sickle at the site of agricultural work such as mowing. Moreover, since the grindstone can be mounted immediately after the blade sharpening work, it is not necessary to prepare a plurality of sickles in advance at the site, and it is possible to prevent the grindstone from being lost.

According to the invention of claims 3 to 5, the grindstone can be removably attached to the sickle. Therefore, the blade sharpening work of the sickle can be carried out smoothly in the field of agricultural work such as mowing, and it is not necessary to prepare a plurality of sickles in advance at the site. Further, since the grindstone can be mounted immediately after the blade sharpening work, it is possible to prevent the grindstone from being lost.

[Brief description of drawings]

FIG. 1 is a perspective view of a main part of a sickle according to a first embodiment of the present invention.

FIG. 2 is a view on arrow A in FIG.

FIG. 3 is a perspective view of a main part of a sickle according to a second embodiment of the present invention.

FIG. 4 is a view on arrow B in FIG.

FIG. 5 is a perspective view of a main part of a sickle according to a third embodiment of the present invention.

[Explanation of symbols]

 1 sickle 10 sickle handle 13 blind nut 131 female screw 20 sickle 21 blade 30 grindstone 40 grindstone mounting tool 41 embracing part 42 grindstone holding part 50 grindstone mounting tool 60 guide part 70 grindstone 712 engaging rod 713 male screw

Claims (5)

[Claims] 1. A hugging portion which is hugged and fixed to a sickle handle, and a pair of nipping portions which have a spring property and stand up from the hugging portion,
A sickle characterized in that the whetstone can be detachably held by the spring force of the holding part. 2. A sickle handle having a screw hole or a screw shaft in place, a sickle blade provided at the tip of the sickle handle, and a grindstone for a sickle. The grindstone has a screw shaft or a screw hole. A sickle characterized in that the whetstone is detachably attached to the sickle handle by screwing the threaded hole or screw shaft of the sickle handle with the screw shaft or screw hole of the whetstone. 3. A sickle whetstone mounting tool for mounting a whetstone on a sickle, comprising a hugging portion for hugging a sickle handle and a whetstone holding portion for holding the whetstone. A grindstone mounting tool for sickles. 4. The grindstone mounting tool for a sickle according to claim 3, wherein the embracing portion is springy and detachably embraces the handle of the sickle, and the grindstone holding portion is embracing. A whetstone mounting tool for a sickle, which includes a fixing surface for fixing a whetstone provided on the surface of the part. 5. The whetstone attachment for a sickle according to claim 3, wherein the hugging portion is fixed to a handle of the sickle, and the whetstone holding portion is a hugging portion fixed to the handle of the sickle. A sickle grindstone mounting tool having a pair of gripping portions having a spring property raised from above, and the grindstone being detachably held by the spring force of the gripping portions.