KR20110085359A - The blade for weeder - Google Patents

The blade for weeder Download PDF

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Publication number
KR20110085359A
KR20110085359A KR1020100005106A KR20100005106A KR20110085359A KR 20110085359 A KR20110085359 A KR 20110085359A KR 1020100005106 A KR1020100005106 A KR 1020100005106A KR 20100005106 A KR20100005106 A KR 20100005106A KR 20110085359 A KR20110085359 A KR 20110085359A
Authority
KR
South Korea
Prior art keywords
blade
mowing
hole
rotating body
hinge
Prior art date
Application number
KR1020100005106A
Other languages
Korean (ko)
Inventor
박학제
Original Assignee
박학제
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 박학제 filed Critical 박학제
Priority to KR1020100005106A priority Critical patent/KR20110085359A/en
Publication of KR20110085359A publication Critical patent/KR20110085359A/en

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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
    • A01D34/73—Cutting apparatus
    • A01D34/733—Cutting-blade mounting means
    • 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
    • A01D34/76—Driving mechanisms for the cutters
    • 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

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

Abstract

The mowing blade according to the present invention includes a mowing blade coupled to an end of a power transmission shaft that rotates at a high speed using a motor as a power source, and the mowing blade rotates to form the mowing blade. In addition, the long holes are formed on both sides, respectively, and the rotary plate having the power transmission shaft end inserted into and fixed to the fixing hole, the vertical rotating body which is connected to the long hole of the rotating plate, respectively, and rotated up and down, and can rotate on the vertical rotating body by the hinge means. It is characterized by consisting of a blade to be installed.
Therefore, in the present invention, since the blade to perform the mowing operation by the rotation of the mowing machine is vertically rotated by the vertical rotating body and the horizontal rotation is made by the hinge means, friction of the blade to a hard object such as stone during mowing operation In any direction, the blade is rotated in the vertical and horizontal directions, so the impact can be absorbed or reduced, minimizing the breakage of the blade, preventing the blade from scattering, and preventing the blade from falling off the rotating plate. It has a preventive effect.

Description

Cutting blades {The blade for weeder}

The present invention relates to a mowing blade of a mowing device that cuts vegetation, grass, scrub, etc. vegetation in a field or field, in particular, when the mowing blade rotated vertically or horizontally by a centrifugal force generated by the operation of the mowing machine, The blades are rubbed against materials such as stones or metals to prevent damage to the blades and the damaged blades from scattering or the blades break out of the blades, preventing safety accidents and at the same time, the blades are firmly bonded to the mowers. It is about a mowing blade that can maintain state.

In general, mowing works have been carried out using tools such as sickle or shovel in areas where vegetation, grass, and cultivation have grown in the fields or fields, but this method is avoided due to physical fatigue and inefficient work ability. Recently, the motor is used as a main power source to transmit power to the power transmission shaft, and the mower is developed by combining a rotary plate with a blade formed at the end of the power transmission shaft. Mowing has been performed by cutting them using the rotational force of the blades.

However, when the mowing operation is performed as described above, the mowing operation is performed like the general lumber or weeds, and the mowing blade is rubbed on the stone of the ground or the ground in the mowing process. When the debris of the damaged blade is scattered in all directions due to the rotational force, causing injury to workers and personnel located in the radius of the working area, the safety accident is very frequent and the whole blade needs to be replaced by the damaged blade. As a result, economical losses and cumbersome problems of replacement work have occurred.

In order to compensate for this problem, as shown in Korean Utility Model Registration No. 20-0292421, the cutter blade and the cutter blade protection device having a tooth-shaped rotary plate having a larger outer diameter than the cutter blade are configured at the tip of the lawn mower to allow the rotor to rotate the cutter blade and the stone. And to prevent the phenomenon that the cutter blade is splashed or damaged by preventing the friction due to the thick wood, etc., but the bearing and the rotating plate to prevent the rotation of the rotating plate to configure the rotary plate of the Utility Model No. 20-0292421 as the cutter blade tip and The fastening member for the installation of the mowing machine is further configured, the production cost increases and the productivity decreases, and the practicality decreases, and the weeds cut by the cutter blade are entangled or pinched by the outer diameter of the sawtooth-shaped rotary plate. This has been.

An object of the present invention devised to solve the above problems is that the mowing blade rotated vertically or horizontally by the centrifugal force generated by the operation of the mowing machine, so that the mowing blade is applied to a material such as stone or metal during mowing operation. The present invention relates to a mowing blade which prevents safety accidents by preventing the damage of the mowing blades and the mowing blades scattered or the mowing blades from the mowing blades while being rubbed, and at the same time, the mowing blades can maintain a firm coupling state to the mowing blades.

The above object is achieved by the following configuration provided in the present invention.

The mowing blade according to the present invention includes a mowing blade coupled to an end of a power transmission shaft that rotates at high speed using a motor as a power source, and the mowing blade rotates to form the mowing blade. In addition, the long holes are formed on both sides, respectively, and the rotary plate having the power transmission shaft end inserted into and fixed to the fixing hole, the vertical rotating body which is connected to the long hole of the rotating plate, respectively, and rotated up and down, and can rotate on the vertical rotating body by the hinge means. It is characterized by consisting of a blade to be installed.

In addition, the vertical rotating body is formed of a metal plate and one side is extended after the introduction into the long hole is grounded with the other end that is not drawn into the long hole, the ground side is formed with a coupling hole and the other side of the ground is hooked to rotate in the long hole in the ring shape It is configured to be fixed to the rotating plate, the blade is inserted into the rear portion between the both ends of the up and down rotating body is inserted into the rear portion is aligned with the coupling hole in a vertical line to form a fastening hole for coupling with the up and down rotating body And a cutting part formed to mow outwardly, and the hinge means includes a washer seated to vertically coincide with an upper part of the coupling hole of the vertical rotating body and the coupling hole of the blade, and the coupling hole, the fastening hole, and the washer are sequentially formed. It is a hinge that combines with a blade to make the blade rotate horizontally. It shall be.

In addition, the hinge is formed in the lower engaging jaw to be engaged with the coupling hole and the interruption is coupled to the coupling hole and the fastening hole and washer sequentially, but smaller than the diameter of the fastening hole so that the blade can be rotated horizontally based on the fastening hole It is formed and is characterized in that the upper portion is extended through the washer to expand the diameter by riveting.

As described above, the mowing blade according to the present invention, since the blade for performing the mowing operation by the rotation of the mowing machine is vertically rotated by the vertical rotating body and the horizontal rotation is made by the hinge means, No matter the friction of the blade in any direction, such as the blade is rotated in the vertical and horizontal directions, so the impact can be absorbed or reduced, minimizing the damage of the blade to prevent the blade from scattering and the blade from the rotating plate It is effective in preventing safety accidents by preventing deviation.

In addition, since the up and down rotating body is made in the form of the one side is inserted into the long hole of the rotating plate and the other side is grounded, there is no fear that the up and down rotating body is separated from the long hole during rotation, and the up and down rotating body is easy to draw into the long hole There is an effect made easily.

1 is a perspective view showing a preferred form of the mowing blade according to the present invention,
2 is an exploded perspective view showing a preferred form of the blade of the present invention,
Figure 3 is an exemplary view showing a preferred form in which the hinge sphere according to the present invention is formed by the riveting expansion,
4 is an exemplary view showing a preferred form in which the hinge sphere according to the present invention is coupled to the blade and the vertical rotating body end,
Figure 5 (a), (b) is an exemplary view showing a preferred form of the blade rotates horizontally and vertically by the vertical rotating body and the hinge according to the present invention,
6 is an exemplary view showing a preferred form in which the blade according to the present invention acts,
7 is an exploded perspective view showing the shape of the hinge fastener according to the present invention;
8 is an exemplary view showing a preferred form in which the hinge fastener according to the invention is formed by riveting,
Figure 9 is an exemplary view showing a preferred form in which the hinge fastener according to the present invention is coupled to the blade and the vertical rotating body end.

Hereinafter, with reference to the accompanying drawings will be described in detail the mowing blade proposed in the preferred embodiment of the present invention.

1 is a perspective view showing a preferred form of the blade according to the present invention, Figure 2 is an exploded perspective view showing a preferred form of the blade according to the present invention, first, the mower to which the present invention is applied is rotated at high speed using a motor as a power source The cutting blade is included at the end of the power transmission shaft to be configured to perform the mowing operation by rotating the mowing blade by the drive of the motor.

The present invention relates to a mowing blade for performing a mowing operation by the mowing device, as shown in Fig. 1, 2 and the fixing hole 13 is formed in the center and the long hole 15 is formed on both sides, respectively, Rotating plate 10, the end of the transmission shaft is inserted and fixed to the fixing hole 13, vertical rotating body 20 is connected to each of the long hole 15 of the rotating plate 10 and rotated up and down by the hinge means It is characterized by consisting of a blade 30 rotatably installed in the vertical rotating body (20).

As shown in FIG. 4, the rotating plate 10 is rotated by receiving power from the motor of the lawn mower, and is configured in the form of a thin metal plate so that the load of the motor is not caught by the weight during the rotation, and is configured in the lawn mower. The fixing hole 13 is configured to be coupled to the end of the power transmission shaft, and the long hole 15 is formed on both sides of the rotating plate 10 to lock the vertical rotating body 20 to be described later.

The up and down rotating body 20 is configured to be able to plan the vertical rotation of the blade 30 to be described later to be locked to the rotating plate 10, the upper and lower rotating body 20 is also formed of a metal plate the same as the rotating plate 10 and one side After entering the long hole 15 is extended and grounded with the other end that is not drawn into the long hole 15, the coupling hole 23 is formed on the ground side, respectively, and the opposite side of the ground is rotated to the long hole 15 in a ring shape It is configured to be locked so as to be fixed to the rotating plate 10.

The up and down rotating body 20 is formed in the form of the one side and the other side is grounded and not inserted into the groove in the long hole 15, there is no fear of leaving the long hole 15, the work efficiency is increased have.

The blade 30 is configured to perform the mowing operation by the centrifugal force generated by the rotation of the rotary plate 10, the rear portion is inserted between both ends of the vertical rotating body 20 is grounded and inserted into the rear vertical rotating body A coupling hole 33 is formed to coincide with the coupling hole 23 of the 20 in a vertical line to plan engagement with the vertical rotating body 20, and a cutting part 35 for mowing the outside is formed.

The hinge means is seated on the upper portion of the coupling hole 23, and more specifically, the upper and lower rotating body 20, the coupling hole 23 and the upper end corresponding to the vertical line of the fastening hole 33 of the blade 30 Consists of the washer 51 and the hinge hole 50 for horizontally rotating the blade 30 by combining the coupling hole 23 and the fastening hole 33 and the washer 51 in sequence. Is made of.

In more detail, as shown in FIG. 3, the hinge 50 has a locking jaw 52 formed at a lower end of the coupling hole 23 at a lower portion thereof, and the suspension hole is connected to the coupling hole 23 and the fastening hole. (33) and the washer 51 is configured to pass through sequentially and the diameter of the interruption of the fastening hole 33 so that the combined blade 30 can be hinged horizontally relative to the fastening hole 33 The upper portion formed smaller than the diameter and sequentially passed through the coupling hole 23, the fastening hole 33, and the washer 51 is formed with an expansion portion 53, the diameter of which is expanded by a riveting operation. It is configured to be locked to the washer (51).

The expansion part 53 is formed by the riveting operation on the upper part of the washer 51 to prevent damage to the vertical rotating body 20 and at the same time the upper surface of the washer 51 is flat so that the hinge 50 is closed. It is configured to facilitate the fastening through.

Therefore, when the motor of the lawn mower is driven by the above configuration, as shown in FIGS. 5A and 5B, the power transmission shaft and the rotating plate 10 coupled with the motor are rotated, and the centrifugal force is generated by the rotation of the rotating plate 10. When the blade 30 is rotated at a high speed, mowing is performed, and the blade 30 was rotated when the blade 30 was rubbed with the uneven surface or studded stone and the blade 30 was rubbed during the mowing operation. Horizontal rotation is made to the center and the blade 30 is rotated to the opposite side to the friction to absorb or reduce the impact caused by the friction.

In addition, the vertical rotation body 20, which is coupled to the blade 30 by the hinge 50, the rear side is also hooked to the long hole 15 of the rotating plate 10 to achieve a vertical rotation to the vertical direction As a result, even if the blade 30 rubs against the ground or the stone, the shock is absorbed or reduced.

Finally, as shown in FIG. 6, the blade 30 is horizontally rotated based on the hinge 50, and the vertical rotation is performed by the vertical rotating body 20 coupled with the blade 30. Regardless of which direction the friction of the blade 30 is made, the external impact can be absorbed or reduced, thereby minimizing the breakage of the blade 30 to prevent the blade from being scattered, and furthermore, the blade 30 is rotated at the rotating plate 10. It is effective in preventing safety accidents by preventing them from falling off.

Here, the hinge means is through the coupling hole 23 and the fastening hole 33 so that the coupling of the blade 30 and the vertical rotating body 20, as shown in Figure 7 blade 30 and up and down Consists of a hinge fastener 60 is formed in the form of a bolt for fixing the rotating body 20.

More specifically, as shown in FIG. 9, the hinge fastener 60 may include an extension portion 63 accommodated in the coupling hole 23 and the coupling hole 33, and the upper portion may be disposed at an outer circumference thereof. Comprising the screw portion 65 is formed with a screw thread and comprises a nut portion 67 is formed with a screw thread corresponding to the screw portion 65 in the inner diameter to be fastened to the screw portion 65 and the screw portion 65 and Through the fastening structure of the nut part 67 to maintain the fixed state of the blade 30 and the vertical rotating body (20).

In addition, as shown in FIG. 8, the hinge fastener 60 has a rivet portion 69 having a diameter extending by riveting at a tip end of the screw portion 65 which is engaged with the nut portion 67 and protrudes. While preventing the damage of the nut 67, it is possible to achieve a stable locking through the hinge fastener (60).

10: rotating plate 13: fixing hole
15: long hole 20: vertical rotating body
23: combined hole 30: blade
33: fastening hole 35: cutting part
50: hinge 51: washer
52: engaging jaw 53: extension
60: hinge fastening 63: extension part
65: screw portion 67: nut portion
69: rivet

Claims (5)

In the mowing blade of the mowing machine to perform a mowing operation by the mowing blade is coupled to the end of the power transmission shaft that rotates at high speed using a motor as a power source,
The fixing plate 13 is formed in the center and the long hole 15 is formed on both sides, respectively, so that the power transmission shaft end is inserted into and fixed to the fixing hole 13, the rotating plate 10,
Vertical rotating body 20 is connected to each of the long holes 15 of the rotating plate 10 and rotated up and down,
A mowing blade consisting of a blade 30 rotatably installed on the vertical rotating body 20 by a hinge means. The method of claim 1,
The vertical rotating body 20 is formed of a metal plate and one side is extended after the introduction into the long hole 15 is grounded with the other end that is not drawn in the long hole 15, the coupling hole 23 is formed on the ground side and ground The opposite side is hooked to be rotated in the long hole 15 in a ring shape is configured to be fixed to the rotating plate 10,
The blade 30 has a rear portion inserted between both ends of the vertical rotating body 20 is grounded and inserted into the rear portion is aligned with the coupling hole 23 in a vertical line to facilitate the coupling with the vertical rotating body 20. The fastening hole 33 is formed and the cut portion 35 is formed to mow the outside,
The hinge means includes a washer 51 seated so as to vertically coincide with the coupling hole 23 of the vertical rotating body 20 and an upper portion of the coupling hole 33 of the blade 30, and the coupling hole ( 23) mowing blades, characterized in that the hinge (50) for engaging the blade (30) and the washer (51) to sequentially rotate the blade 30 to the horizontal rotation. The method of claim 2,
The hinge 50 has a locking jaw 52 is formed in the lower portion is engaged with the coupling hole 23 and the suspension is sequentially coupled to the coupling hole 23, the fastening hole 33 and the washer 51. However, it is formed to be smaller than the diameter of the fastening hole 33 so that the blade 30 is horizontally rotated on the basis of the fastening hole 33 and the upper portion is extended through the washer 51 to expand the diameter by riveting Mowing blades characterized in that the portion 53 is formed. The method of claim 1,
The hinge means is formed in the form of a bolt and the interruption is composed of an extension portion 63 accommodated in the coupling hole 23 and the fastening hole 33, the upper screw thread 65 is formed on the outer periphery Is mowing blade, characterized in that the hinge fastener (60) comprising a nut portion 67 is formed with a screw thread corresponding to the screw portion 65 in the inner diameter. The method of claim 4, wherein
The hinge fastener (60) is a mowing blade, characterized in that a rivet portion (69) is formed, the diameter of which is expanded by riveting the tip of the screw portion (65) which is engaged with the nut portion (67).
KR1020100005106A 2010-01-20 2010-01-20 The blade for weeder KR20110085359A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020100005106A KR20110085359A (en) 2010-01-20 2010-01-20 The blade for weeder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020100005106A KR20110085359A (en) 2010-01-20 2010-01-20 The blade for weeder

Publications (1)

Publication Number Publication Date
KR20110085359A true KR20110085359A (en) 2011-07-27

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020100005106A KR20110085359A (en) 2010-01-20 2010-01-20 The blade for weeder

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160021493A (en) 2014-08-18 2016-02-26 송정헌 Blade for weeder
EP3410837A4 (en) * 2016-02-02 2019-10-02 iRobot Corporation Blade assembly for a grass cutting mobile robot
US11470774B2 (en) 2017-07-14 2022-10-18 Irobot Corporation Blade assembly for a grass cutting mobile robot

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160021493A (en) 2014-08-18 2016-02-26 송정헌 Blade for weeder
EP3410837A4 (en) * 2016-02-02 2019-10-02 iRobot Corporation Blade assembly for a grass cutting mobile robot
US11470774B2 (en) 2017-07-14 2022-10-18 Irobot Corporation Blade assembly for a grass cutting mobile robot

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E601 Decision to refuse application