JP3135019U - Farm tools - Google Patents

Abstract

[PROBLEMS] A lightweight, long-time continuous use that makes it difficult for hands to get tired, gripping and holding firmly with fingers and palm, easy to apply great force to the blade, and while holding A farm tool that can pick up the removed weeds is provided.
The handle has a rod shape having a length of at least 40 mm and a thickness of 10 mm to 35 mm, the blade includes a thin plate portion having a length of 40 mm to 150 mm and a width of 10 mm to 35 mm, and the tip of the blade Are attached so that the angle formed by the line connecting the blade and the attachment portion of the handle with the central axis of the handle is within 60 degrees. Further, the plate-like portion includes a substantially arc-shaped arc-shaped portion that is gradually bent toward the central axis of the handle from at least a part thereof toward the tip side, and The arc shape has a central angle of 10 to 60 degrees. The arcuate part is gradually twisted from the handle side toward the tip side so that the whole is close to a part of the spiral, and the twist angle is 5 degrees to 30 degrees.
[Selection] Figure 1

Description

  The present invention relates to a manual farm tool. More specifically, the present invention relates to a tool used for digging up soil or removing weeds in small-scale farming operations such as so-called gardening.

  In recent years, an increasing number of people enjoy gardening / garden work (so-called gardening) as a personal hobby, not for commercial purposes. Since such gardening is a non-commercial activity that is performed personally, it is often performed on a small area such as a garden in a private house, a planter (a container used for cultivation of flowers), or the like. In such small-scale horticulture, conventionally used farm tools (Kuwayasuki) are too large to be easy to use, and various small farm tools have been provided in recent years.

  For example, Japanese Patent Application Laid-Open No. 2002-84801 discloses a weeder having an arm body having a gripping claw at the front portion of the handle and an operating fulcrum projecting in a direction substantially perpendicular to the arm body. This grabber is large enough to allow the arm body to protrude outside the hand when the handle is gripped with the palm and fingers of one hand, and the operating fulcrum is grounded with the gripping claw hooked on the root of the weed. It is possible to remove weeds by the principle of cocoon as if pressed against. This weeder can be pulled out strongly by the action of cocoon even if weeds are rooted on hard ground. However, in gardening as a personal hobby, it is rare to remove weeds that grow on hard ground like wasteland, but rather it is mainly to remove weeds that grow one after another on soft ground. On soft ground, the operating fulcrum part will sink into the ground, so it will not be able to benefit from the action of the insulator, and it will be used continuously for a long time due to the weight of the weeder by providing a strong operating fulcrum part etc. And hands tend to get tired. Also, because one hand is blocked by grasping the weeder, it is necessary to let go of the weeder once or grab the extracted grass, or to do it with the other hand. It is inefficient to perform the reserve, and it is often necessary to use the other hand, considering that one hand has another tool, a bag of extracted grass, etc. That is inconvenient.

  Japanese Patent Application Laid-Open No. 11-113303 discloses a weeder provided with a pointed nail on the fingertip of a glove. In this weeder, the nail that digs the ground is supported only with fingers, so it is impossible to apply too much force and it is considered difficult to remove weeds that grew on the hard ground, but gardening as a personal hobby As described above, it is often imagined that it is effective enough to remove weeds mainly growing on soft ground. However, in order to remove weeds that are slightly deeply rooted, it is indispensable to squeeze the nail inserted into the ground, and it is difficult to do this with this weeder that has a structure that supports the nail only with fingers. In addition, since the movement of the finger and the movement of the nail are integrated, it is difficult to pick up the grass removed by the nail with the finger.

Japanese Patent Application Laid-Open No. 2003-174802 discloses a weeder having a finger mounting portion on a blade that can be inserted into the soil. This weeder usually supports the blade with only one index finger, for example, but it can also be held with a thumb if necessary. Therefore, it is easier to apply force to the blade than the weeding device described in JP-A-11-113303. However, it is not easy to exert the power to remove weeds with deep roots with only two fingers, and a fundamental solution has not been achieved. The same is true in that the hand tends to get tired if used continuously for a long time.
JP 2002-84801 A JP 11-113303 A JP 2003-174802 A

  In order to solve the problems as described above, the problem to be solved by the present invention is that it is lightweight and does not get tired even after long-term continuous use, and it can be held firmly with fingers and palm. It is an object of the present invention to provide a farming tool that can easily apply a large force to a blade and can pick up weeds and the like that have been removed while being held. It is also an object of the present invention to provide a farm tool capable of efficiently digging (cultivating) a relatively small area of ground at the same time.

(1) In order to solve the above-described problem, the farm tool according to the present invention is a farm tool having a handle and a blade at one end of the handle, the handle having a length of at least 40 mm and a thickness of 10 mm. The blade includes a thin plate-like portion having a length of 40 mm to 150 mm and a width of 10 mm to 35 mm, and a line connecting the tip of the blade, the blade and the attachment portion of the grip handle is included in the grip. The blade is attached so that the angle formed with the central axis of the handle is within 60 degrees.

  Handle the handle with a finger other than the thumb of one hand, or handle the handle with a finger and palm other than the thumb of one hand by making the handle at least 40 mm long and having a rod shape with a thickness of 10 mm to 35 mm. It becomes possible to hold. Since the thumb is not used when the farm tool is gripped, weeds removed by the thumb and blade or by the thumb and index finger can be easily picked up. However, in order to grab the farming tool strongly, it is preferable that the handle can be gripped using at least three fingers, that is, the middle finger, the ring finger, and the little finger, and the handle needs to have a length of at least 40 mm. On the other hand, even if the handle is too long, one end of the handle protrudes toward the wrist, reducing usability, and increasing the weight may cause fatigue to the hand when the farm tool is used for a long time. On the other hand, if the handle can be gripped by the entire hand without any inconvenience, no longer length is required for the handle, and therefore it is preferably 120 mm or less. Also, regarding the thickness of the handle, it is necessary to have a thickness of about 10 mm for powerful gripping, but the thickness is preferably 35 mm or less so that it can be easily gripped with fingers and palm. The handle is generally rod-shaped, but it includes cylinders, prisms, and ellipsoids. The main point is the shape that is longer than the thickness (diameter) and can be gripped by hand. ing.

  The thickness of the handle is particularly preferably in the range of 20 mm to 35 mm in the above range. Even small-scale horticulture such as gardening is sometimes envisaged when digging up hard ground or removing deeply weed roots. Naturally, this requires a strong force, and it is preferable to hold the handle with all five fingers including the thumb. For this purpose, it is preferable to provide a handle having a thickness in the range of 20 mm to 35 mm.

  Since the blade is a part that digs up the ground or removes weeds, it is preferable to have a thin plate-like portion at least near the tip in order to facilitate insertion into the ground. In other words, the portion other than the tip does not necessarily have to be a thin plate shape, for example, a rod shape, or bend the plate to ensure strength so that it has a cross-section with a “<” shape. May be.

  In order to dig up the ground, it is easier to use a blade with a certain width. On the other hand, if the blade is too wide, it may be difficult to insert into the ground or a fine work will be difficult. It is preferable to be in the range. If the blade length is too short, it will be difficult to dig up the ground sufficiently, but if it is too long, the blade will stick to the ground when trying to pick up the weeds removed with the thumb and blade or with the thumb and index finger. Etc. Usability becomes worse. In addition, it is not preferable that the weight is too long in order to make the hand tend to get tired when used for a long time. Specifically, it is possible to satisfy all of these requirements by setting the blade length in the range of 40 mm to 150 mm, which is preferable.

  By the way, although a blade is attached to the edge part of a handle, the edge contains the end surface of a handle, but is not restricted to this. For example, a blade may be attached near the end face of the handle, that is, on the side face that is approximately within the diameter of the handle from the end face of the handle.

  Moreover, in the agricultural implement according to the present invention, the attachment angle of the blade greatly affects the usability. According to the research of the inventor of this farming tool, when the blade is attached such that the angle between the tip of the blade and the attachment portion of the blade and the handle to the central axis of the handle is within 60 degrees, the present invention It has been found that it is possible to thrust the blade into the ground without difficulty when holding the farm tool. When this angle is 0 degree, the direction of the edge of the blade and the direction of the arm substantially coincide with each other, and the blade can be pushed to the ground with the strongest force. On the other hand, when this angle is increased to 60 degrees or more, the direction in which the tip of the blade is located is too different from the direction of the arm, so that it is difficult to apply a force to push the blade to the ground.

  In addition, the agricultural implement according to the present invention is characterized in that the angle formed by the imaginary line connecting the tip of the blade and the attachment portion of the blade and the handle to the central axis of the handle is characteristic. It should be noted that the angle between the blade and the handle is arbitrary. This is because even if the angle between the blade and the handle is approximately 90 degrees, the blade can be used as a farming tool according to the present invention as long as the blade is bent by 30 degrees or more as a whole.

  It is particularly preferable to set this angle in a range of 15 degrees to 45 degrees. As described above, this angle is larger in terms of the magnitude of the force that pushes the blade against the ground, but in reality it is very large in scenes such as home gardening where the agricultural implement according to the present invention is most often used. It is rare that you have to push the blade against hard ground with force. Rather, when this angle is small and the direction of the blade and the direction of the arm substantially coincide with each other, the work is carried out so that the arm is pushed up against the ground, so that the work posture becomes unnatural. As a result of earnest research, the inventor of this farming tool can set the angle within the range of 15 to 45 degrees to achieve both the magnitude of force when pushing the blade against the ground and the usability that can be used in a natural working posture. Was found.

(2) Further, in the agricultural implement according to the present invention, the plate-like portion has an approximately arc shape that is bent at least partially toward the central axis of the handle from the handle side to the tip side. It is preferable that the arc-shaped portion includes a central angle of 10 to 60 degrees.

  Here, the term is supplemented with reference to the figure. The central angle of the arc shape is a central angle when the shape of the arc-shaped portion is viewed as a circular arc, and indicates the angle of the portion displayed as the arc-shaped portion central angle (7) in FIGS. The shape of the arc-shaped portion does not necessarily need to be completely arc-shaped, and the present invention includes one in which the shape of the arc-shaped portion is not strictly arc-shaped. However, it is an important feature of the present invention to have a smooth curve on at least a part of the blade, and the present invention is characterized by a central angle when the curved portion is regarded as an arc.

  When digging up the roots of weeds, place the blade near the target position and point it up, slightly lift the blade and drop the soil near the root of the weed while lifting the blade while avoiding unnecessary damage to the ground as much as possible. Can be removed. However, if the blade is flat, it is difficult to separate the soil near the root of the weed from the surroundings only by making a linear cut on the ground. In particular, it is necessary to insert a blade deeply diagonally in order to cut off the soil of the portion that is directly under the weeds from the surroundings. This causes inconveniences when fine work is required, such as when horticultural crops exist in the vicinity of weeds. On the other hand, if the blade is provided with an arc-shaped part that draws a substantially arc-shaped curve, for example, by rotating the blade so as to draw a circle on the ground surface, the cup-shaped three-dimensional cut is formed on the ground directly under the weeds. Can be easily made, so that only the roots of weeds can be dug up easily.

  Also, when digging up the ground, by inserting the blade near the target position and moving the blade so that it can be cut laterally, it can be cut up efficiently by cutting the ground. If the arc-shaped part which draws is provided, since the three-dimensional cut | interruption which cuts between deeper soil like the tip is made, it can dig up the ground more smoothly.

  Of course, if the curve of the arcuate part is too weak, only a result close to that when the blade is completely flat can be obtained. On the other hand, if the curve of the arcuate part is too strong, it becomes difficult to push the blade against the ground. Therefore, if the center angle of the arc drawn by the substantially arc shape is in the range of 10 degrees to 60 degrees, it is easy to push the blade against the ground, and the effect of making a three-dimensional cut on the ground can be obtained. It is possible to achieve both.

(3) Furthermore, in the agricultural implement which concerns on this invention, it is a shape gradually twisted toward the front end side from the said handle side, and it is preferable that the twist angle is 5 to 30 degree | times.

  Since the blade is gradually bent toward the central axis side of the handle from the handle side to the tip side, and gradually twisted at the same time, the blade has a shape close to a part of the spiral. Here, the shape of this embodiment will be supplemented with reference to the drawing of one embodiment. FIGS. 7 (A) and 7 (B) are explanatory views showing a state in which one embodiment of the agricultural implement according to the present invention is observed from different angles, but the blade is gripped as it goes from the attachment part to the handle to the tip. The shape gradually twists while changing its direction in the central axis direction of the handle, and eventually becomes a shape close to a part of the spiral (particularly, it can be observed remarkably in FIG. 7B).

  Because the blade is close to a part of the spiral, when inserting the blade into the ground, it is rotated by twisting the handle instead of simply piercing the blade with force applied to the handle held by the hand. By pushing it in, it becomes easy to screw the blade into the ground. It is a procedure to screw a corkscrew (English corkscrew) with a spiral part into a cork stopper, and can thrust a blade with a small force even on hard ground with thick roots and strong weeds. The effect is obtained.

  Unlike cork removal, it is difficult to assume that the blade will be screwed extremely deeply into the ground. Therefore, if the blade shape is a spiral shape that extends many times like cork removal, it will be easier to use. Deteriorate. According to the research of the inventor of this agricultural implement, it is known that a twist angle of about 5 to 30 degrees is preferable for an application in which a blade is inserted into the ground. Therefore, the blade does not have a perfect spiral shape but a shape close to a part of the spiral.

(4) Further, in the agricultural implement according to the present invention, the arc-shaped portion is such that a line connecting the center of the arc-shaped portion and the center point of the arc shape substantially intersects with the central axis of the handle, and an intersection angle at this time Is preferably 60 to 90 degrees.

  Here, the term is supplemented by quoting the figure again. A line connecting the center of the arc-shaped portion and the center point of the arc-shaped portion is indicated as an arc-shaped portion center radial line (5) in FIGS. The central axis of the handle is displayed as the handle central axis (4) in the figure. These crossing angles indicate the angle of the portion displayed as the blade mounting angle (6) in the figure.

  Now, the line connecting the center of the arc-shaped part and the center point of the arc-shaped part is a line corresponding to the diameter of the substantially arc-shaped part formed by the arc-shaped part, and the arc-shaped part spreads on both sides of this line. A small crossing angle between the line and the central axis of the handle means that the blade protrudes outward from the handle, and conversely a large crossing angle means This means that the blade does not protrude outward, and further, when the crossing angle increases, it means that the blade faces inward.

  This angle also has a preferable range. When the angle is too small or too large, the direction of the blade is too different from the direction of the arm, so that it is difficult to apply a force to push the blade against the ground. According to the research of the creator of this farm tool, if this is in the range of 60 degrees to 90 degrees, the tip of the blade can be pushed to the ground with a natural posture when the farm tool is gripped, which is particularly convenient.

(5) Further, in the agricultural implement according to the present invention, it is preferable that the extension of the center of gravity line near the tip of the blade substantially intersects the central axis of the handle.

  Here, the term is supplemented with reference to the figure. The center of gravity line near the tip of the blade is displayed as the center of gravity line (8) of the blade tip in FIGS. This is the center of gravity line in the range of about 2 to 3 cm in length at the tip of the blade, and substantially coincides with the tangent line when the blade is drawing a smooth curve.

  This center of gravity line indicates the direction in which the blade is forced when the blade is pushed to the ground, so that it intersects the central axis of the handle, which means that the handle is centered when the blade is pushed to the ground. This means that a force that rotates along the axis perpendicular to the axis is applied to the hand that grips the handle, but no force that twists the handle is applied. There is a reason for the characteristics of the human hand in such a structure, and it is easy to hold back even if a force that bends the wrist in one direction is applied, but a force that twists the wrist. This is due to the fact that it is difficult to keep this in mind, and that you feel tired in a short time. In other words, even if a force for bending the wrist is applied, a force for twisting the wrist is not applied.

  Furthermore, it is more preferable that the center of gravity line is set so as to pass through the handle. When the handle is gripped by hand, even if the center of gravity line passes the handle, even the force that rotates the handle does not occur (the moment of action passes through the support point, the moment becomes zero), and pure This is because it becomes more difficult to feel tired because it is only the force of pushing the hand.

(6) Further, in the agricultural implement according to the present invention, it is preferable that the blade has a knife shape with a thin tip.

  The main focus of this farming tool is small gardening as a personal hobby such as gardening, and lightly digging and cultivating narrow land and removing weeds that grow one after another on soft ground. Therefore, it is preferable to provide a knife-shaped blade with a thin tip, which is easy to selectively dig up only the target ground and weeds, unlike a rod that efficiently cultivates a large area using a wide blade. . However, the shape of the knife does not necessarily mean that the object is sharpened and can be cut. To the last, the shape of the blade is made to be a shape close to a so-called blade of a sword so that a fine work can be easily performed.

(7) Moreover, it is preferable that the said blade is attached so that it may protrude from the side surface of the said handle end part vicinity.

  When the blade is attached to the handle end, it is natural that the blade protrudes from between the index finger and the thumb when the handle is gripped. In this case, when picking up an object, it is picked with the thumb and the blade or with the thumb and the index finger while holding the blade with the thumb and the index finger. Such a way of holding is not unreasonable, but it cannot be denied that it is somewhat unnatural. On the other hand, if the blade is attached so that it protrudes from the side surface near the handle handle end, the blade can be separated from the index finger, especially when the handle is gripped with the middle finger, the third finger, the little finger, or these and the palm. It can be held so as to protrude from between the middle fingers. In this case, since there is nothing between the index finger and the thumb, the removed weeds can be picked up naturally.

(1) As explained above, in the agricultural implement according to the present invention, it is possible to grip the handle with three fingers of middle finger, ring finger, little finger and palm of one hand, and the agricultural implement itself is lightweight and used for a long time. Even hands are hard to get tired. In addition, it is possible to dig up the ground and weeds with sufficient width and depth for gardening as a personal hobby, and it is possible to pick up the removed weeds with the index finger and thumb without leaving the farm tools.

(2) In addition, the shape of the blade including a substantially arc-shaped arcuate portion that is gradually bent toward the central axis of the handle from the handle side to the tip side makes it smoother with lighter force. It is possible to dig up the ground.

(3) By making the blade bend gradually toward the central axis of the handle from the handle side to the tip side, and at the same time, gradually twisted so that the blade draws a shape close to a part of the spiral. Even on hard ground, it is possible to thrust the blade with a small force in the manner of screwing the corkscrew having a spiral portion into the cork stopper.

(4) Furthermore, the line connecting the center of at least a part of the arcuate portion of the blade and the center point of the arc shape substantially intersects the central axis of the grip handle, and the intersection angle at this time is 60 degrees to 90 degrees By doing so, it is possible to lightly plow the ground with a natural posture or to remove weeds.

(5) Also, by setting the extension of the center of gravity line near the tip of the blade to substantially intersect the central axis of the handle, no force is generated to twist the wrist when the blade is pushed against the ground. This makes it possible to produce a farm tool that does not feel tired even after long hours of work.

(6) By making the tip of the blade into a knife shape with a thin tip, it becomes easy to perform fine work aiming only at the target land or weed necessary for personal gardening.

(7) In addition, by providing a blade so that it protrudes from the side surface near the handle end, the index finger and thumb when holding the handle with the middle finger, ring finger, and little finger of one hand and the palm It is possible to use the agricultural implement according to the present invention with nothing in between, and it is possible to pick up the removed weeds etc. naturally with the index finger and thumb.

  Hereinafter, an embodiment of an agricultural implement according to the present invention will be described with reference to the drawings.

  FIG. 1 is an explanatory view showing an embodiment of a farm tool according to the present invention. The handle (1) is manufactured by processing wood into a substantially cylindrical shape, and has a diameter of about 20 mm and a length of about 80 mm. A blade (2) is attached to the side surface near the tip of the handle (1). The blade (2) is manufactured by processing a rust-resistant stainless steel plate, and has a width of about 20 mm and a length of about 60 mm. It consists of only a small handle (1) necessary and sufficient to hold with one middle finger, ring finger, little finger and palm, and a small blade (2) necessary and sufficient to dig up the ground. Agricultural tools weigh less than 100 g, and even when used for a long time, they are unlikely to get tired.

  The blade (2) is affixed by providing a portion in contact with the handle (1) in a planar shape at the end thereof. However, the attachment method is not limited to this, and any method can be used such as screwing the blade to the handle and press-fitting the blade by providing a recess in the handle. Moreover, you may enable it for a user to replace | exchange a blade (2).

  When the handle (1) is gripped with the middle finger, ring finger, little finger and palm of one hand, the blade (2) protrudes from between the index finger and the middle finger, and the handle (1) is also between the index finger and thumb. The blade (2) also does not exist. Therefore, the removed weed can be picked up naturally with the index finger and thumb.

  The blade (2) is provided with a plate-like portion (3) which is gradually bent toward the handle axis from the handle side toward the tip side. When the farm tool is observed from the lateral direction, the blade (2) draws an arc shape, and the central angle at this time is about 30 degrees. Furthermore, the line connecting the center when the blade (2) is viewed as an arc shape and the center point of the arc shape and the center axis of the handle are substantially intersected, and the intersecting angle at this time is 60 degrees. ing. By selecting the blade (2) shape and the mounting angle, an agricultural tool that is easy to use in small-scale gardening can be obtained.

  In this embodiment, the plate-like portion (3) is a part of the blade (2) and has an integral structure, but these may be joined as separate parts. For example, it is good also considering the whole thing which connected the plate-shaped part with the rod-shaped component as a blade.

  In this embodiment, the tip of the blade (2) (which coincides with the tip of the plate-like portion (3) in this embodiment) has a spatula shape, and the ground is flattened or simplified. Can be used as a portable transplant

  4 and 5 are explanatory views showing another embodiment of the agricultural implement according to the present invention. 4A to 4C are a top view, a side view, and a front view, respectively, and FIG. 5 is a perspective view so that the features of the agricultural implement according to the present invention appear more clearly.

  In this embodiment, the tip of the blade (2) (which coincides with the tip of the plate-like portion (3) in this embodiment) has a knife shape with a thin tip. Further, the blade is gradually bent from the handle side toward the tip side toward the center axis side of the handle and is gradually twisted at the same time. As a result, the blade (2) has a shape close to a part of the spiral. Yes. Further, the center of gravity line of the portion in the range of about 2 cm at the tip of the blade (2) is set so as to substantially intersect the central axis of the handle (1).

  Since the blade (2) has a shape close to a part of a spiral, even if it is a hard ground with thick roots and strong weeds, the corkscrew having a spiral part is small enough to be screwed into a cork stopper. The blade can be screwed into the ground with force. In addition, the tip of the blade (2) is sharp and sharp like a sword, making it easier to pierce the ground and making a curved cut on the ground when the blade (2) is moved so as to move laterally. Can dig up smoothly. Also, precise work such as digging only the target ground and weeds is easy.

  In addition, since the center of gravity line near the tip of the blade (2) is set so as to substantially intersect the central axis of the handle (1), the force that twists the wrist when the blade (2) is projected on the hard ground. It does not take a long time, and it is hard to feel tired even if you work for a long time.

  6 and 7 are explanatory views showing another embodiment of the agricultural implement according to the present invention. 6 (A) to 6 (C) are respectively a top view, a side view, and a front view, and FIGS. 5 (A) and 5 (B) are different so that the features of the farming tool according to the present invention appear more clearly. The perspective view observed from the direction is shown.

  The present embodiment is the same as the second embodiment except that the length of the blade (2) is about 150 mm. Increasing the length of the blade (2) slightly increases the weight, but improves usability when digging deep-rooted weeds. Further, in general, a large force is required to push the blade (2) deeply into the ground. However, since the blade (2) has a shape close to a part of the spiral, this can be performed with a small force as described above. This effect is more pronounced in the case of this embodiment in which the long blade is deeply pushed into the ground.

  As described above, the agricultural implement according to the present invention is very useful when digging up the ground and weeds in small-scale horticulture as a personal hobby such as gardening.

It is explanatory drawing which showed the implementation method of the agricultural implement which concerns on this invention. Example 1 It is explanatory drawing which shows the characteristic of the agricultural implement which concerns on this invention. It is explanatory drawing which shows the characteristic of the agricultural implement which concerns on this invention. It is explanatory drawing which showed the implementation method of the agricultural implement which concerns on this invention. (Example 2) It is explanatory drawing which showed the implementation method of the agricultural implement which concerns on this invention. (Example 2) It is explanatory drawing which showed the implementation method of the agricultural implement which concerns on this invention. (Example 2) It is explanatory drawing which showed the implementation method of the agricultural implement which concerns on this invention. (Example 3)

Explanation of symbols

1 Handle 2 Blade 3 Plate (arc)
4 Handle center axis 5 Plate center diameter 6 Blade mounting angle 7 Arc center angle 8 Blade center of gravity line

Claims (6)

A farm tool with a handle and a blade at one end of the handle,
The handle is a rod shape having a length of at least 40 mm and a thickness of 10 mm to 35 mm,
The blade includes a thin plate-like portion having a length of 40 mm to 150 mm and a width of 10 mm to 35 mm,
The farm tool is attached so that an angle formed by a line connecting the blade tip, the blade and the handle attachment portion with a central axis of the handle is within 60 degrees. The plate-like portion includes an arc-shaped portion having a substantially arc shape that is gradually bent toward the central axis of the handle from at least a part thereof toward the tip side from the handle.
The farm tool according to claim 1, wherein the arcuate part has a central angle of 10 degrees to 60 degrees. The arcuate part is a shape gradually twisted from the handle side toward the tip side,
The agricultural implement according to claim 2, wherein the twist angle is 5 to 30 degrees. The arcuate part, the line connecting the center of the arcuate part and the center point of the arc shape, and the central axis of the handle handle substantially intersect,
And the crossing angle in this case is 60 to 90 degree | times, The agricultural implement of Claim 2 or Claim 3 characterized by the above-mentioned. The agricultural implement according to any one of claims 1 to 4, wherein an extension of a center of gravity line near a tip of the blade substantially intersects a central axis of the handle. The farm tool according to any one of claims 1 to 5, wherein the blade has a knife shape with a thin tip.

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