JP3008418U - Mowing sickle - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a mowing sickle with good workability and with replaceable blades. [Structure] A blade mounting portion 3 having an acute included angle is fixed to one end of a long rod 2, and a blade 4 is detachably attached to the tip of the blade mounting portion 3. In particular, it is preferable to attach the blade attachment portion 3 to the rod 2 so as to form a substantially T-shape. [Effect] You can easily mow the grass without bending over or turning your body. Further, when the sharpness of the blade body 4 deteriorates, it is possible to restore the original sharpness only by replacing the blade body 4. Further, the blade body 4 can be easily attached and detached and can be firmly fixed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a mowing sickle, and particularly to a mowing sickle having good workability.

[0002]

[Prior art]

 Conventionally, as a grass cutting sickle of this type, a blade body made of steel or the like is fixedly attached to the tip of a wooden handle section of about 30 to 50 cm so as to form a substantially L-shape with respect to the handle section. A flat blade is formed on the inside of the L-shape and has been used for a long time. This mowing sickle cuts grass in a desired range by cutting the grass in a reach of the worker with the worker's hips bent and repeating the movements one after another.

[0003]

[Problems to be solved by the device]

 In the above-mentioned conventional mowing sickle, the worker has to work for a long time while keeping his or her waist bent, and the range in which the grass can be cut is limited. There is a problem that it is difficult because it is necessary to bend and stretch. In addition, the blade body is attached so that it comes to the left side when you grasp the sickle with your right hand, so when you take the grass on the right side of your body, you need to change the direction of your body and workability is poor. There is a problem. Furthermore, there is a problem that it cannot enter the gap where the body cannot enter.

By the way, in the above-mentioned conventional mowing sickle, when sharpness of the blade deteriorates, the blade is sharpened again with a grindstone or the like, but there is a problem that re-sharpening the blade with the grindstone requires skill and takes time.

The present invention is intended to solve such a problem, and an object thereof is to provide a mowing sickle having good workability and capable of changing blades.

[0006]

[Means for Solving the Problems] A grass cutting sickle according to claim 1 of the present invention has a blade attachment part having an acute included angle fixed to one end of a long rod, and a tip of the blade attachment part. The blade is detachably attached to the.

Further, in the grass cutting sickle according to claim 2, a blade attachment portion having a plurality of blade attachment protrusions at its tip end with an acute included angle at one end of a long rod is substantially T with respect to the rod. The blade body is fixed so as to form a letter, and the blade body having the fixing hole portion is detachably attached to the blade body attaching projection through a fixing member.

In the grass cutting sickle according to claim 3, the long rod is a combination of a large-diameter tubular body and a small-diameter tubular body that can be fitted into the large-diameter tubular body. The large-diameter pipe has a fixing hole at the insertion end, and the small-diameter pipe has two or more positioning holes. The fixing hole and the positioning hole are It is attached so that it can be extended and contracted through a fixing member so as to match any one of them.

According to a fourth aspect of the present invention, each of the tube bodies is made of an aluminum alloy, and a plurality of ridges are formed on the outer surface of the tube body.

According to a fifth aspect of the present invention, the blade body has a corrugated blade.

Further, in the grass cutting sickle of claim 6, a reinforcing rib is formed in the blade attachment portion.

[0012]

[Action]

 In the structure of claim 1, since the blade attachment portion having an acute included angle is fixed to one end of the long rod, the blade can be bent down by pulling it toward the grass. You can easily mow the grass without. Also, grass in areas where people cannot enter can be easily mowed by reaching out. Further, since the blade body is detachably attached to the blade body mounting portion, if the cutting ability of the blade body deteriorates, the initial cutting ability can be restored by replacing the blade body.

Further, in the structure of claim 2, since the blade attachment portion is attached so as to form a substantially T-shape with respect to the rod, it is possible for an operator to mow the grass without changing the orientation of the body. it can. Moreover, since the fixing holes formed in the blade are fitted into the plurality of blade mounting protrusions formed in the blade mounting portion and are fixed by the fixing member, the blade can be easily attached and detached. It is easy and can be firmly fixed.

According to a third aspect of the present invention, the long rod is a combination of a large-diameter tubular body and a small-diameter tubular body that can be fitted into the large-diameter tubular body. The large-diameter pipe has a fixing hole at the end of the insertion side, and the small-diameter pipe has two or more positioning holes, and the fixing hole and the positioning hole are provided. Since it is attached so that it can be expanded and contracted via a fixing member so as to match any of the above, the length of the rod can be adjusted according to the worker's height.

In the structure of claim 4, since each of the pipes is made of aluminum alloy, it is lightweight and easy to handle, and a plurality of ridges are formed on the outer surface of the pipe. , It is difficult for your hands to slip when handling the rod.

In the structure of claim 5, since the blade body has the corrugated blade, the grass does not get into the concave portion of the unevenness formed by the corrugated blade and does not escape, so that the grass can be efficiently cut. You can

Further, in the structure of claim 6, since the reinforcing rib is formed on the blade mounting portion, the grass is strong when cutting grass and a large force is required to pull the mowing sickle toward you. Even in this case, the blade mounting portion is not deformed.

[0018]

【Example】

 Hereinafter, a first embodiment of the present invention will be described in detail with reference to FIGS. The mowing sickle 1 of the first embodiment is provided with a long rod 2, a blade attachment portion 3 fixed to the tip of the rod 2 with an acute included angle, and an attachment to the tip of the blade attachment portion 3. And a blade body 4 that has been cut. The long rod 2 has a length of about 70 to 150 cm. Particularly, in the present embodiment, the rod 2 has a first tube body 21 having a large diameter and a flat portion 23 formed at a tip portion having an outer diameter slightly smaller than the inner diameter of the first rod body. The rod body 22 is inserted, and a fixing hole portion 21A is formed at the tip end portion on the insertion end side of the first pipe body 21, and the side face of the second pipe body 22 is formed. A plurality of positioning holes 22A, 22B, 22C and 22D are formed in this embodiment, and any one of the fixing hole 21A and the positioning hole 22A. The length of the rod 2 can be adjusted in four stages by aligning the positions and screwing a screw 24 as a fixing member. The first tube body 21 and the second tube body 22 forming the rod body 2 as described above are made of an aluminum alloy, and a large number of them are formed on the outer surfaces of the first tube body 21 and the second tube body 22. Ridges 25 are formed in the axial direction.

In addition, the blade attachment portion 3 is a fixing portion 31 which has an acute included angle and one side of which is insertable into the flat portion 23 of the second tubular body 22, and the flat portion 23 It is inserted in and fixed in two places. The other side is a plate-shaped mounting portion 32, and the blade mounting portion 3 is T-shaped with respect to the rod 2 by forming the fixing portion 31 evenly on the left and right sides. A step portion 33 is formed on the upper end of the mounting portion 32, and a plurality of screw members 34, in this embodiment, three screw members 34 are fixed to the step portion 33 in a penetrating state from the upper surface side. A blade body mounting projection 35 is formed on the lower surface side of the portion 32. Further, the mounting portion 32 is formed with two reinforcing ribs 36 in the vertical direction. The blade attachment portion 3 as described above is preferably made of stainless steel, which is lighter in weight and excellent in mechanical strength and corrosion resistance than steel or the like which forms a blade of a conventional sickle.

The blade body 4 has a corrugated blade 41 which is a blade portion at its tip end, and a plurality of fixing holes 42, three fixing holes 42 in this embodiment, are formed at the base end side. . Then, these three fixing holes 42 are fitted into the blade mounting protrusions 35, and the nuts 5 as fixed members are screwed together so that they are detachably mounted. In addition, 6 is a washer.

The operation of the above configuration will be described. As shown in FIG. 6, the worker H grasps the long rod 2 and lowers the blade 4 onto the grassland B and pulls it toward the front so that the grass can be easily mowed without bending down. In addition, grass in areas where people cannot enter can also be easily mowed by reaching out, and after mowing the upper grass, the blade 4 can be pulled toward you to scrape the mowed grass. it can. Further, since the blade body 4 is removably attached to the blade body mounting portion 3, when the cutting ability of the blade body 4 deteriorates, the original cutting ability can be restored only by replacing the blade body 4. Further, since the blade attachment portion 3 is attached to the rod 2 in a substantially T-shape, the worker H can mow the grass without changing the orientation of the body. Moreover, since the fixing holes 42 formed on the blade 4 are fitted into the plurality of blade mounting protrusions 35 formed on the blade mounting portion 3, and are fixed by the nut 5 as a fixed member. The blade body 4 can be easily attached and detached and firmly fixed. Moreover, the long rod 2 is formed by combining the large-diameter first pipe body 21 and the small-diameter pipe body 22 that can be fitted into the large-diameter pipe body 21. The tubular body 21 has a fixing hole portion 21A at the tip thereof, and the small-diameter tubular body 22 has four positioning hole portions 22A, 22B, 22C and 22D, and the fixing hole portion 21A is provided. And any one of the positioning holes 22A ... Are fitted so that they can be expanded and contracted by screwing a screw 23, which is a fixed member, into the rod according to the height of the worker H. The length of 2 can be adjusted. Further, since the first pipe body 21 and the second pipe body 22 are made of aluminum alloy, they are lightweight and easy to handle, and a large number of them are formed on the outer surfaces of the first pipe body 21 and the second pipe body 22. Since the convex ridges 25 are formed, the risk of slipping the hand when handling the rod 2 is low. Moreover, since the blade body 4 has the corrugated blade 41, the grass does not get into the concave concave portion of the tip portion formed by the corrugated blade 41 and does not escape, so that the grass can be efficiently cut. Further, since the reinforcing ribs 36 are formed on the blade mounting portion 3, even when the grass is strong and requires a large force when the grass cutting sickle 1 is pulled toward you to mow the blade, The mounting portion 3 does not deform.

As described above in detail, in the grass cutting sickle 1 according to the above-mentioned embodiment, the blade mounting portion 3 having an acute angle is fixed to one end of the long rod 2, and the blade mounting portion 3 has a tip end. Since the blade body 4 is detachably attached, the grass can be easily mowed without bending over. Further, when the sharpness of the blade body 4 is deteriorated, the original sharpness can be restored only by replacing the blade body 4. In particular, by attaching the blade attachment portion 3 to the rod 2 in a substantially T-shape, a worker can mow the grass without changing the orientation of the body. Moreover, since the fixing hole portions 42 formed in the blade body 4 are fitted into the plurality of blade body mounting protrusions 35 formed in the blade body mounting portion 3 and are fixed by the nut 5 as a fixed member, The blade body 4 can be easily attached and detached and firmly fixed.

Although the grass cutting sickle of the present invention has been described above with reference to the accompanying drawings, the present invention is not limited to this and can be appropriately modified within the scope of the present invention. For example, the rod 2 does not have to be a combination of two pipes as in the above-mentioned embodiment, and may be three or more, and in some cases one. Further, the blade body 4 need not be the wave blade 41 as in the above-mentioned embodiment, but may be a normal flat blade. Further, the blade body 4 such as a corrugated blade, a flat blade, and a plow blade can be replaced and used as an attachment depending on the type, density, and location of the grass to be cut.

[0024]

[Effect of device]

 In the mowing sickle according to claim 1 of the present invention, since the blade attachment portion having an acute included angle is fixedly provided at one end of the long rod, the blade can be lowered to the grass and pulled forward. You can easily mow the grass without bending over. In addition, grass in places where people cannot enter can be easily mowed by reaching out. Further, since the blade body is detachably attached to the blade body mounting portion, when the blade body has a poor sharpness, the original sharpness can be restored only by replacing the blade body.

Further, in the grass cutting sickle according to claim 2, since the blade mounting portion is mounted so as to form a substantially T-shape with respect to the rod body, an operator can mow the grass without changing a body direction. You can Moreover, since the fixing holes formed on the blade are fitted into the plurality of blade mounting protrusions formed on the blade mounting portion and are fixed by the fixing member, the blade can be easily attached and detached. And can be firmly fixed.

In the grass cutting sickle according to a third aspect of the present invention, the long rod is a combination of a tubular body with a large diameter and a tubular body with a small diameter that can be fitted into the large tubular body. The large-diameter pipe has a fixing hole at the insertion end, and the small-diameter pipe has two or more positioning holes. The fixing hole and the positioning hole are Since it is attached so that it can be extended and contracted through the fixing member so as to match any one, the length of the rod can be adjusted according to the worker's height.

In the grass cutting sickle according to claim 4, since each of the tubes is made of an aluminum alloy, it is lightweight and easy to handle, and a plurality of ridges are formed on the outer surface of the tube. , The risk of slipping your hands when handling the rod is low.

In the grass cutting sickle according to claim 5, since the blade body has a corrugated blade, the grass does not get into the concave and convex portions formed by the corrugated blade and is not missed, so that the grass can be efficiently clipped. it can.

Further, in the mowing sickle according to claim 6, since the reinforcing rib is formed on the blade attachment portion, the grass is strong when cutting the grass and a great force is exerted when pulling the mowing sickle toward you. Even if it is necessary, the blade mounting portion will not be deformed.

[Brief description of drawings]

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

FIG. 2 is a partial perspective view showing the mowing sickle of the first embodiment.

FIG. 3 is a partial side view showing the mowing sickle of the first embodiment.

FIG. 4 is a perspective view showing a blade body of the mowing sickle of the first embodiment.

FIG. 5 is an exploded perspective view showing the mowing sickle of the first embodiment.

FIG. 6 is a perspective view showing a usage state of the mowing sickle of the first embodiment.

[Explanation of symbols]

 1 Mowing sickle 2 Long rod 3 Blade attachment part 4 Blade 5 Nut (fixed member) 21 First tube (large diameter tube) 21A Fixing hole 22 Second tube (small diameter) 22A, 22B, 22C, 22D Positioning holes 24 Screws (fixing members) 25 Convex ridges 35 Blade mounting protrusions 36 Reinforcing ribs 41 Wave blades 42 Fixing holes

Claims (6)

[Scope of utility model registration request] 1. A mowing sickle characterized in that a blade body mounting portion having an acute included angle is fixedly provided at one end of a long rod body, and the blade body is detachably mounted at a tip of the blade body mounting portion. . 2. A blade body mounting portion having a plurality of blade body mounting protrusions at its tip end is fixed to one end of a long rod so as to form a substantially T-shape with respect to the rod body. A grass cutting sickle characterized in that a blade having a fixing hole is detachably attached to the blade attaching projection through a fixing member. 3. The long rod is a combination of a large-diameter tubular body and a small-diameter tubular body that can be fitted into the large-diameter tubular body. The insertion side end portion has a fixing hole portion, the small-diameter tubular body has two or more positioning hole portions, and the fixing hole portion and any one of the positioning hole portions are aligned with each other. The mowing sickle according to claim 2, wherein the sickle is attached so as to be expandable and contractable via a fixing member. 4. The mowing sickle according to claim 3, wherein each of the tubular bodies is made of an aluminum alloy, and a plurality of ridges are formed on an outer surface of the tubular body. 5. The mowing sickle according to claim 4, wherein the blade body has a corrugated blade. 6. The grass cutting sickle according to claim 5, wherein a reinforcing rib is formed on the blade mounting portion.