WO2020251161A1 - Dispositif de prévention d'enroulement pour dispositif de coupe d'herbe et dispositif de coupe d'herbe l'utilisant - Google Patents

Dispositif de prévention d'enroulement pour dispositif de coupe d'herbe et dispositif de coupe d'herbe l'utilisant Download PDF

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Publication number
WO2020251161A1
WO2020251161A1 PCT/KR2020/005485 KR2020005485W WO2020251161A1 WO 2020251161 A1 WO2020251161 A1 WO 2020251161A1 KR 2020005485 W KR2020005485 W KR 2020005485W WO 2020251161 A1 WO2020251161 A1 WO 2020251161A1
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WIPO (PCT)
Prior art keywords
blade
body plate
gearbox
prevention device
cutting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2020/005485
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English (en)
Korean (ko)
Inventor
김용택
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Individual
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Individual
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Filing date
Publication date
Priority claimed from KR1020190082912A external-priority patent/KR20200027412A/ko
Application filed by Individual filed Critical Individual
Publication of WO2020251161A1 publication Critical patent/WO2020251161A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D34/00—Mowers; Mowing apparatus of harvesters
    • A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
    • A01D34/412—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
    • A01D34/63—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
    • A01D34/82—Other details
    • A01D34/828—Safety devices
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D34/00—Mowers; Mowing apparatus of harvesters
    • A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
    • A01D34/412—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
    • A01D34/63—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D34/00—Mowers; Mowing apparatus of harvesters
    • A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
    • A01D34/412—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
    • A01D34/63—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
    • A01D34/73—Cutting apparatus
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D34/00—Mowers; Mowing apparatus of harvesters
    • A01D34/835—Mowers; Mowing apparatus of harvesters specially adapted for particular purposes

Definitions

  • the present invention relates to an anti-winding device for a mowing machine and a mowing machine employing the same, and when the grass is cut with a mowing machine, grass or twigs, twine or vinyl, etc. (hereinafter, ' It relates to a device that prevents the winding of foreign matter and removes the wound foreign matter.
  • Conventional mowing machines include a blade for cutting grass, a gearbox for rotating the blade without flow, a gripping rod that is connected to transmit the rotational power of a motor to the gearbox to be gripped by hand, and is connected to the gripping rod. It consists of a rotating shaft provided to rotate by transmitting the rotational power of the motor to the blade, and a safety plate installed under the blade to protect the blade rotating by the rotating shaft from the outside.
  • Korean Patent No. 126491 Anti-aggregation of Yechwigi
  • a gearbox 3 is provided to receive the rotational power of the motor by being connected to the gripping rod 2 in the form of a hand grippable
  • the mowing blade 7 is coupled to the rotating shaft 5 installed to be rotated by receiving the rotational power by the gearbox 3, and the blade 7 is rotated so that while the mowing operation is performed, the rotating shaft 5 of the mowing machine
  • the through hole 11 is formed in a plate body so as to be provided between the gear box 3 and the blade 7, and the rotation shaft 5 is accommodated in the center to rotate.
  • the inclined plate 20 is a pair of upward inclined plates 21 extending upwardly inclined outwardly from the respective corners of the body 10 so as to face each other in a diagonal direction with the through hole 11 of the body 10 at the center. ) Is formed, and the pair of upward inclined plates 21 and a pair of diagonally extending downward inclined outwardly from the other corners of the body 10 facing each other with the through hole 11 at the center Downward inclined plates 22 are formed, and the inclined plates 20 are formed to be inclinedly extended from 100° to 120° (D) on the horizontal line of the body 10, and are formed on both sides in the horizontal length direction of the body 10.
  • the upward swash plate 21 and the downward swash plate 22 formed at one side of both sides of the body 10 or at one side of the body 10 on which the downward swash plate 22 is formed, in the form of “C” in the lower inward direction By forming a bent part 25 to hold both sides of the body of the blade 7 to be fixed, the upward swash plate 21 is installed to be placed on the side of the cutting part 7a of the rotating blade 7 to rotate during mowing work.
  • the blade 7 cuts the grass, it is configured to prevent the cut grass from entering the rotation shaft 5 by simultaneously cutting the grass in the upward swash plate 21 as well.
  • the problem of the first prior art is that the upward swash plate 21 and the body 10 of the swash plate 20 are formed to be gently inclined at 100° to 120° (D) (see FIG. 3), and furthermore, the swash plate Since the downward swash plate 22 does not overlap with the swash blade 7 while the blade 7 is in contact (see Fig. 4), the swash plate 20 and the gear box 3 and/or the gripping rod 2 A certain degree of separation and space between the livers is inevitable, and the above-described problems cannot be fundamentally avoided by simple design changes.
  • Korean Patent No. 1736697 (the day of reaping for preventing glue winding) is disclosed.
  • the side blade 46 of the vertical blade 40 for preventing winding is vertically formed so that the space between the inside of the blade of the swash plate for preventing winding between the blade of the harvesting machine and the blade of the blade of the harvesting machine is minimized. It is formed so that the space between and becomes narrower.
  • the horizontal blade 30 is inserted into the lower side of the upper holder 20, and the side blade 46 penetrates upward through the through hole 39 of the horizontal blade 30 as shown in FIG. 7 By doing so, it is possible to solve the problem of the first prior art in which the distance between the side blade and the gearbox should be spaced to some extent.
  • the lower holder 50 is in close contact with the bottom of the vertical blade 40 inserted into the rotary shaft 12 and is inserted into the rotary shaft 12, and the safety plate 60 is attached to the lower holder 50 in a fixed contact with the rotary shaft ( 12) is installed in sequence, and each of the parts sequentially inserted into the rotation shaft 12 as above is fastened to the screw portion 16 of the rotation shaft 12 by a fastener 70 such as a nut, and the safety plate 60 Pushes upwards to induce a tight coupling of each part.
  • a fastener 70 such as a nut
  • the vertical blade 40 made as above protrudes from the upper surface of the horizontal blade 30, so when the horizontal blade 30 rotates, it rotates together, so that the paste is wound between the horizontal blade 30 and the upper holder 20 in conventional use. That is, the side blade 46 of the vertical blade 40 prevents the winding of the glue by cutting the rolled glue or the glue to be wound by the side blade 46.
  • the present invention was conceived to solve the above problems, when the blade of the harvester rotates, i) the blade erected at a right angle to the prevention and removal blade for the harvester of the present invention is a phenomenon in which foreign substances from outside enter between the support rod and the blade. Ii) In the inside of the blade erected at a right angle, the foreign material that is wound is cut by the cutting surface of the blade, and iii) the foreign material that is cut by the opposite cutting surface radially outward than the cutting surface of the blade standing at a right angle It is an object of the present invention to provide an anti-winding device for a reaping machine and a reaping machine employing the same for more effectively preventing foreign matter from being wound by being discharged radially outward.
  • the cutting surface of the blade portion erected at a right angle to be inclined, cutting efficiency and upward pushing efficiency are improved, and in addition, the upper surface of the blade portion is also formed with an inclined blade to improve cutting efficiency.
  • the anti-winding device is formed separately from the upper and lower first and second body plates, it is more preferable to form a blade portion by bending a part of the upper first body plate.
  • the anti-winding device for harvesting machines includes a body plate 10 having a fastening hole 13 rotatably coupled with a power shaft 2 in a gear box 1 at the center. ; And a blade part 20 protruding upwardly and installed on the body plate 10.
  • the body plate 10 further comprises a gearbox receiving groove 15 having an inner diameter larger than the radius of the fastening hole 13, the gearbox receiving groove 15, the gearbox (1) while surrounding the gearbox (1) and a slight gap to prevent friction with the gearbox (1) during rotation, the blade portion (20) around the gearbox receiving groove (15) It is installed to protrude adjacent to the gearbox (1), the lower surface of the blade portion (20) is fixed to the body plate (10), and one side of the blade portion is composed of a cutting surface (21) having a blade , It is rotatably coupled to the power shaft 2 and rotates with the blade 3 while cutting foreign substances such as grass entering around the gearbox 1 and discharging them to the outside, thereby preventing winding in the mowing machine. To do.
  • the blade portion 20 is disposed at an angle so that the foreign matter cut by the cutting portion is pushed out radially outward.
  • the body plate 10 includes a first body plate 11 made of a rigid material having a fastening hole 13 rotatably coupled with the power shaft 2 in the center, and the gearbox 1 It includes a second body plate 12 having a gearbox receiving groove 15 formed therein so as not to cause friction with the gearbox 1 when rotating by leaving a slight gap while being wrapped, and the first body plate 11 and As the second body plate 12 is fixedly coupled, it is characterized in that it is installed so that the blade portion 20 protrudes from the second body plate 12.
  • the blade portion 20 is characterized in that a flat cross-section erected in a vertical direction with the body plate 10 has a trapezoidal shape.
  • the cutting surface 21 is characterized in that it is formed obliquely to form an acute angle with the body plate 10.
  • the upper surface 23 of the blade portion 20 is characterized in that it is made of a blade shape.
  • the body plate 10 has a donut-shaped first body plate 11 having an inner fastening hole 13 that is axially coupled to the rotation shaft, and an inner diameter larger than the radius of the fastening hole 13
  • the second body plate 12 having the gearbox receiving groove 15 is formed, respectively, and the inner part of the second body plate 20 is bent at a right angle to form the blade part 20 as a single body. It is characterized.
  • the blade portion 20 is characterized in that it consists of at least two blade portions facing each other.
  • a reaping machine including a winding prevention for the reaping machine is disclosed, and the mowing blade 3 of the reaping machine rotates with the rotational force transmitted from the power transmission means in the gearbox, the gearbox and the shaft It is combined to have rotational force while cutting and removing grass and miscellaneous wood, and the power shaft 2 of the mowing machine is rotationally coupled with the gear box 1, and the mowing machine is wound between the mowing blade 3 and the gear box.
  • the mowing blade 3 is fixedly coupled with the prevention device 4, but by rotating the power shaft 2 of the mowing machine, the rewinding prevention device 4 for the mowing machine rotates together with the mowing blade 3 do.
  • the blade of the anti-winding device for a harvester of the present invention prevents winding out of the blade erected at a right angle between the blade for the blade of the blade and the pipe for the power of the harvester.
  • the back is cut and discharged at an angle to prevent the glue from being wound, and at the same time, the uncut glue and foreign matter that enters innumerable numbers between the large empty space between the vertical blade and the support bar are quickly rotated around the gearbox and are wound tightly.
  • the sharp blades immediately operate to cut and discharge. In other words, it prevents or removes the rotating mowing blades from being pinched, prevents the winding of grass or vines in most general work with thick grass and vines, and simultaneously cuts and discharges the wound parts of the rotating blades while winding.
  • grass or vines prevent the blade from stopping and keep the blades rotating smoothly, and the blades of the harvester always rotate smoothly to maintain the proper speed and keep working. It eliminates the hassle of stopping due to forest and enables continuous mowing work to be continued efficiently, making it convenient to mowing such as eco-friendly mowing and charging mowing machines, and saving energy according to work efficiency. Has the effect of.
  • FIG. 1 is a perspective view of a state of use of a grass entanglement prevention device of a cutting machine according to the first prior art
  • Figure 2 is a perspective view of a separated state of the grass entanglement prevention device of the cutting machine of FIG.
  • Figure 3 is a bottom perspective view of the yechwigi of Figure 1 and a side sectional view showing the inclined angle of the inclined plate.
  • Figure 4 is a plan view of the combined state of the yechwigi of Figure 1;
  • Figure 5 is an exploded view of the blade of the wind-up prevention yechwigi according to the second prior art.
  • Figure 6 is a side view showing the assembly state of the blade of the blade for preventing the winding of Figure 5;
  • FIG. 7 is a plan view of a horizontal blade applied to the cutting machine for preventing pulling in FIG. 5.
  • Figure 8 is a plan view of a vertical blade applied to the cutting machine for preventing pulling in Figure 5;
  • Figure 9 is a perspective view of the anti-winding device for yechwigi according to the first embodiment of the present invention.
  • FIG. 10 is a front view of the anti-winding device for yechwigi according to the first embodiment of the present invention.
  • Figure 11 is a rear view of the anti-winding device for yechwigi according to the first embodiment of the present invention.
  • FIG. 12 is a cross-sectional view taken along line A-A of FIG. 10.
  • FIG. 13 is a side view of the anti-winding device for yechwigi according to the first embodiment of the present invention.
  • FIG. 14 is a state diagram of the use of the anti-winding device for yechwigi according to the first embodiment of the present invention.
  • 15 is a view for explaining the effect of the anti-winding device for harvesting machine according to the first embodiment of the present invention.
  • Figure 16 is a perspective view of a winding prevention device for yechwigi according to a second embodiment of the present invention.
  • Figure 17 is a front view of the anti-winding device for yechwigi according to the second embodiment of the present invention.
  • Figure 18 is a side view of the wind-up prevention device for yechwigi according to the second embodiment of the present invention.
  • FIG. 19 is a perspective view of a winding prevention device for yechwigi according to a modification of the second embodiment of the present invention.
  • Figure 20 is a side view of a wind-up prevention device for yechwigi according to a modification of the second embodiment of the present invention.
  • 21 is a perspective view for explaining the function of the anti-winding device for yechwigi according to the present invention.
  • Figure 22 is a reference perspective view for explaining the function of the anti-winding device for yechwigi according to the present invention.
  • FIG. 23 is a cylindrical empty space created by rotation of the blade of FIG. 22 and a fixed blade portion.
  • Figure 24 is a reference perspective view for explaining an additional function of the anti-winding device for yechwigi according to the present invention.
  • an anti-winding device 4 for harvesting machines will be described with reference to FIGS. 9 to 15.
  • FIG. 9 is a perspective view of a rewinding prevention device for harvesting machines according to a first embodiment of the present invention
  • FIG. 10 is a front view of a rewinding prevention device for harvesting machines according to the first embodiment of the present invention
  • FIG. 11 is a first embodiment of the present invention. It is a rear view of the rewinding prevention device for harvesting machines according to the embodiment
  • FIG. 12 is a cross-sectional view taken along line AA of FIG. 10
  • FIG. 13 is a side view of the winding prevention device for harvesting machines according to the first embodiment of the present invention.
  • FIG. 14 is a state diagram of the use of the wind-up prevention device for harvesting machines according to the first embodiment of the present invention
  • FIG. 15 is a view for explaining the effect of the wind-up prevention device for harvesting machines according to the first embodiment of the present invention.
  • the apparatus for preventing winding for a harvester according to the present invention is coupled to a gearbox 1 as a power transmission means, and a body plate 10 and a body plate 10 rotated together with the blade 3. ) Is composed of a blade portion 20 coupled to.
  • the blade 3 of the mowing machine which rotates with the rotational force transmitted from the motor or other power transmission means in the gearbox, is shaft-coupled with the gearbox to have rotational force and removes grass and miscellaneous trees.
  • the mowing machine rotates the mowing machine power shaft (2) supported at the end of the mowing machine support rod (7) with the power obtained from the engine or motor, and the mowing machine power shaft (2) is integrally formed with the gearbox (1) or coupled in other ways. It is fixedly coupled with a screw (6) with a winding prevention device (4) therebetween, but the shaft is combined with the winding prevention device (4) for a harvester by rotating the power shaft (2) of the mowing machine. And rotates the blade (3) that rotates.
  • the blade 3 that rotates by rotationally coupled to a power source (not shown) is rolled up with grass or vines in most general work with thick grass and vines.
  • various anti-winding devices for mowing machines are rotationally coupled to the power source. It rotates like the blade 3 above.
  • the body plate 10 of the anti-winding device 4 for a harvester of the present invention there is a fastening hole 13, which is a central hole for fixing the same size as the screw fixing hole of the blade 3, and the body plate ( On one side of 10), the blade part 20 is protruding, so when assembling the blade 3, the direction of the blade part 20 is toward the gear box 1, and the anti-winding device 4 for the harvester is installed in the gear box.
  • the blade (3) is fixedly coupled with the screw (6) between the blades (1), and the mowing is performed using a mowing machine.
  • the rewinding prevention device 4 for the harvester since the rewinding prevention device 4 for the harvester is fixedly coupled with the blade 3 and the screw, it rotates in the same direction even when the grass is cut. However, since the mowing machine support rod (7) is in a state of being stopped on it, it plays a role of stopping and winding the glue or string during the mowing operation.
  • the anti-winding device 4 for the mowing machine which is fixedly coupled with the blade 3 and the screw 6, is a solid, rigid material such as a relatively thin steel plate having a donut shape through a fastening hole 13, which is a central hole for fixing.
  • a gearbox receiving groove (15) inside to prevent friction when rotating with the gearbox (1) by enclosing the gearbox (1) upwards.
  • the second body plate 12 is formed by welding or the like so that the flat cross-section, which is erected close to the body plate and perpendicular to the body plate, protrudes the blade portion 20 having a trapezoidal shape, and the bottom surface of the blade portion is a body plate ( It is fixed to 10), and one side of the blade portion is a cutting surface 21 having a blade, and the opposite cutting surface 22 is vertically configured.
  • the upper surface 23 of the blade portion 20 may be configured to be parallel to the body plate 10, but it is not necessarily limited thereto, and the upper surface may also have a blade shape.
  • the cutting surface 21 is not perpendicular to the body plate 10 and is formed obliquely so as to form an acute angle
  • the blade portion 20 is the body plate 10 and It is more efficient to cut foreign substances entering the wide space ("Y") between the support rod and the blade while rotating in combination with the blade 3, and also, even if the foreign substance is not cut, it is lifted upward. Winding can be prevented more effectively.
  • An embodiment in which the cutting surface is formed close to the vertical will be described later as a second embodiment.
  • the distance d2 from the virtual rotational center axis to the cutting surface 22 is the distance d1 from the virtual rotational center axis to the cutting surface 21
  • the distance d1 from the virtual rotational center axis to the cutting surface 21 By being formed longer, when the blade portion 20 is disposed obliquely to the tangential direction of the receiving groove 15, the foreign matter cut by the cutting surface 21 is removed by the body of the blade portion (ie, cutting Due to the deviation d1 to d2 of the opposite side), there is a certain advantage that the cut foreign matter is immediately pushed outward to the outside of the anti-winding device 4 for the cutting machine.
  • the body plate 10 includes a donut-shaped first body plate 11 having a fastening hole 13 that is axially coupled to the rotation shaft therein, and a hole having an inner diameter larger than that of the gearbox receiving groove ( After the second body plate 12 having 15) is formed (each has the same outer diameter), it may be combined and manufactured by spot welding, but the inner side having the receiving groove 15 and the fastening hole 13 It is also possible to configure the body plate 10 having a donut shape as a whole while having a stepped cross section of a single body.
  • the first body plate 11 and the second body plate 12 are formed separately, but when drilling the inside of the second body plate 20, the part corresponding to the blade part 20 is The additional advantage of being easy to manufacture because welding is unnecessary when the second body part 12 and the blade part 20 are integrated (see FIG. 12) by forming the blade part 20 by bending it at a right angle. Will exist.
  • the cutting surface 21 of the blade portion 20 is generally sharpened to be advantageous for cutting foreign substances, but the second body plate 12 is made of a thin (for example, tenths of mm) steel plate. While, in the case of forming the blade part 20 by bending a part of the blade part 20 and the unitary second body part 12, the cutting surface itself is possible, so that a separate additional polishing process is omitted. It is possible.
  • the anti-winding device for a harvester of the present invention it is used as shown in FIGS. 14 and 15, i) the blade part 20 of the anti-winding device 4 for a harvester rotating together with the blade 3 ) Is protruding, and by releasing the winding of foreign substances entering the interspace ("Y") from the outside, the winding of foreign substances is primarily prevented; ii) In addition, since a portion of the gearbox is accommodated in the receiving groove 15 and at the same time, the blade portion protrudes adjacent to the receiving groove, so that the gap between the blade portion 20 and the gearbox 1 which rotates relative to each other is minimized.
  • the cutting surface 21 forms an acute angle with the body. Since it is inclined, it is equipped with a feature that pushes foreign substances upward.
  • FIGS. 21 to 24 illustrate the advantages of the present invention described above from another viewpoint, that is, when the blade portion 20 is disposed obliquely to the tangential direction of the receiving groove 15, the cutting surface 21 ), as shown in FIGS. 22 and 23, an empty space of a virtual three-dimensional column (see “V” in FIGS. 22 and 23) is formed due to the rotation of the blade. Due to this empty space, a bundle of foreign matter By being separated from the gearbox and the support rod, the winding shape of foreign substances is reliably prevented.
  • FIG. 16 is a view of the anti-winding device for harvesting machines according to the second embodiment of the present invention. It is a perspective view, and FIG. 17 is a front view of an anti-winding device for harvesting machines according to a second embodiment of the present invention, and FIG. 18 is a side view of the anti-winding device for harvesting machines according to a second embodiment of the present invention.
  • FIG. 19 is according to a modified example of the second embodiment of the present invention. It is a perspective view of the rewinding prevention device for harvesting machine, and FIG. 20 is a side view of the winding prevention device for harvesting machine according to a modification of the second embodiment of the present invention.
  • a foreign substance ("W") of a string or glue in the space ("Y") between the blade supporting the harvester 7 and the blade 3 with an upward inclined blade Even if it is wound and pinched, the glue wound with an inclined blade is cut, and the glue wound on the upper part of the blade is cut at an angle with a cutting surface 21 at an angle to the outside and cut out.
  • the blade part 20 is formed by being struck back from the center, so that the blade part 20 rotates with a certain width while the blade 3 rotates, so an empty space (“V”) is created along the circumference.

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Harvester Elements (AREA)

Abstract

La présente invention concerne un dispositif de prévention d'enroulement pour un dispositif de coupe d'herbe et un dispositif de coupe d'herbe l'utilisant, et son but est de fournir un dispositif de prévention d'enroulement pour un dispositif de coupe d'herbe pour empêcher plus efficacement l'enroulement de substances étrangères en empêchant les substances étrangères de s'infiltrer entre une barre de support et une lame de coupe d'herbe et en permettant à des substances étrangères enroulées d'être coupées par une face de coupe d'une lame et en même temps évacuée vers l'extérieur dans la direction radiale. Le dispositif de prévention d'enroulement comprend : une plaque de corps (10) ayant un trou d'accouplement (13) en son centre, le trou d'accouplement (13) étant accouplé rotatif à un arbre de puissance (2) ; et une partie lame (20) installée pour faire saillie à partir de la plaque de corps (10), la partie lame (20) étant installée autour du trou d'accouplement de façon à faire saillie pour être adjacente à une boîte d'engrenage (1), la surface inférieure de la partie lame (20) est fixée sur la plaque de corps (10), et une surface latérale de la partie lame (20) est conçue comme une face de coupe (21) ayant une lame. Par conséquent, la partie lame (20) est accouplée de manière rotative à l'arbre de puissance (2) de façon à couper et à évacuer des substances étrangères, telles que l'herbe s'infiltrant autour de la boîte d'engrenage (1), vers l'extérieur, tout en tournant avec une lame de coupe d'herbe (3), empêchant ainsi les substances étrangères de s'enrouler autour du dispositif de coupe d'herbe.
PCT/KR2020/005485 2019-06-14 2020-04-27 Dispositif de prévention d'enroulement pour dispositif de coupe d'herbe et dispositif de coupe d'herbe l'utilisant Ceased WO2020251161A1 (fr)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
KR20190071142 2019-06-14
KR10-2019-0071142 2019-06-14
KR10-2019-0082909 2019-07-09
KR1020190082912A KR20200027412A (ko) 2018-09-01 2019-07-09 예취기용 감김방지 장치
KR10-2019-0082912 2019-07-09
KR1020190082909A KR20200027411A (ko) 2018-09-01 2019-07-09 예취기용 감김방지 장치
KR1020200021736A KR102134005B1 (ko) 2019-06-14 2020-02-21 예취기용 감김방지 장치 및 이를 채용하는 예취기
KR10-2020-0021736 2020-02-21

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WO2020251161A1 true WO2020251161A1 (fr) 2020-12-17

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AU2021441323B2 (en) * 2021-04-23 2025-12-18 Techtronic Cordless Gp Force amplified fastener for power tool implements

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KR101585520B1 (ko) * 2015-09-10 2016-01-14 강광원 예초기의 커팅장치
KR101736697B1 (ko) * 2016-11-15 2017-05-17 김재희 풀감김 방지용 예초기의 날

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