KR20140005018A

KR20140005018A - Protective device for brush

Info

Publication number: KR20140005018A
Application number: KR1020120072740A
Authority: KR
Inventors: 임병준
Original assignee: 임병준
Priority date: 2012-07-04
Filing date: 2012-07-04
Publication date: 2014-01-14

Abstract

The present invention is coupled to protrude in the shape of a pipe (pipe) to the power unit installed on one side of the workbench, the bearing portion is formed on the outside, the screw portion is formed on the inner side in the protective device for lawn mowers for protecting the rotating blade, At least one support disposed in the lower portion of the blade is installed in the coupling portion is coupled by the fastening member and installed in the protrusions of the work table and the safety plate to prevent the rotation of the safety plate and a plurality of protrusions formed radially Is formed in a size to cover the blade and the blade is coupled to the upper portion of the blade, the lower portion is the power unit is accommodated, one side is formed with a guide groove formed on the side includes a protective cover detachably coupled to the work table It is characterized by.

Description

Mower protection devices {PROTECTIVE DEVICE FOR BRUSH}

The present invention relates to a lawnmower protection device mounted on the lawn mower to protect workers and people around the rotating blade, more specifically, the protection device is provided on the upper and lower blades, respectively, the protection device of the lower blade rotates The present invention relates to a lawnmower protection device provided with a support member for preventing the impact of the lawnmower.

Generally, mowers are used to cut and remove weeds growing in mountains or fields. Weed blades are horizontally mounted on a rotating shaft of a power unit of a small engine or a battery motor and rotate at high speed.

However, in order to remove the weeds with a mower, the worker rotates the blades rotated at high speed in uneven ground, and often works on the ground with obstacles such as gravel, and the blades collide with the ground or gravel and the blade is broken. There are frequent accidents that cause accidents such as falling or gravel to injure workers or people around them.

Therefore, in order to solve the above problem, a protective plate in which a dodge is formed radially is mounted on the lower blade of the rotating blade, and a protective cover is mounted on the blade to protect the blade. In order to mount the protective plate on the lower portion of the blade rotating at high speed, the bearing outer ring is fixed to the center of the protective plate, and the inner ring of the bearing is inserted into the male screw portion formed at the end of the rotating shaft protruding from the lower blade, and then fixed by screwing. In this fastening structure, when the blade is rotated at a high speed, the protection plate is a friction force of the bearing, because the rotational force is generated in the blade rotation direction due to the weaving of the rotating shaft of the weeds, many inventions, devises for preventing the rotational force of the protection plate has been disclosed .

In Korean Patent Nos. 10-01027085 and 10-0910237 and Korea Patent Publication No. 10-2011-0056195, one end of the working rod and the protective cover are connected by an elastic member (spring, support means) to rotate the protective cover at a predetermined angle. Discloses a protective cover for a mower.

However, the above-described registered and published patents do not support the rotation of the protective cover because the protective cover is rotated by a predetermined angle, and the collision of the gravel or the like may be caused by the collision of the gravel or the like. It is desirable to.

Korean Patent Registration No. 10-1054726, Utility Model Registration No. 20-0214892, No. 20-0238542 and Korean Utility Model No. 20-2010-0008361 have a rod / knob for preventing rotation of the protective cover / safety plate. Disclosed is a mower blade protection device having a structure connected to a support of a rigid body between a part and a protective cover / safety plate.

However, the above-described patents and utility models have a heavy structure of the rigid support, and there is a risk of damage due to the concentration of stress at the fastening portion of the rod / handle. Since it is transmitted to the work rod / handle as it is, there is a problem that increases the fatigue of the worker and lowers the work efficiency.

Accordingly, an object of the present invention is to provide a lawnmower protection device that can prevent the accident or accidental accidents by splashing the blade or the debris of the blade or obstacles while the blade rotates.

In addition, another object of the present invention is to provide a lawnmower protection device that can prevent the safety accident while effective weeding work by preventing the rotation of the safety plate installed on the lower blade while the blade rotates.

In addition, another object of the present invention is to provide a lawnmower protection device that can effectively mow by reducing the fatigue of the operator by absorbing shock or vibration generated while the blade rotates.

The above object is coupled to protrude in the shape of a pipe (pipe) to the power unit installed on one side of the workbench according to the present invention, the bearing portion is formed on the outside, the screw portion is formed on the inner side for the lawn mower protection for protection In the device, the safety plate is disposed in the lower portion of the blade installed in the coupling portion is coupled by a fastening member and a plurality of protrusions are formed radially, and installed on the protruding portion of the work table and the safety plate to prevent rotation of the safety plate At least one support member is formed and is sized to cover the blade is coupled to the upper portion of the blade, the power unit is accommodated in the lower portion, the guide groove is formed on one side is detachably coupled to the work table It is achieved by a mower protection device comprising a protective cover.

Here, it is preferable that the workbench further includes a fastening band to which one side of the support member is installed, and the support member further includes a ring coupled to the fastening band and the safety plate, respectively.

The protective cover may further include a lower coupling member on which a worktable is mounted and installed toward the opening of the guide groove, and an upper coupling member coupled to an upper portion of the lower coupling member with the worktable therebetween.

According to the present invention, an object of the present invention is to solve such a conventional problem, a cutter that can prevent the operator or people around the safety accident to be hit by an obstacle while the blade is rotated and the debris of the blade or obstacle is splashed Protection is provided.

In addition, there is provided a lawn mower protection device that prevents the safety accident while working effectively by preventing the rotation of the safety plate installed on the lower blade while the blade rotates.

In addition, there is provided a lawnmower protection device that can effectively reduce the fatigue of the operator by absorbing the shock or vibration generated while the blade rotates to effectively mow.

1 is a perspective view showing a lawn mower protection device according to an embodiment of the present invention,
2 is a partial cross-sectional perspective view of FIG. 1;
3 is a perspective view showing a protective cover installed state of the lawn mower protection device according to an embodiment of the present invention,
4 is an exploded perspective view of the lawn mower protection device according to the embodiment of the present invention.

Prior to the description, components having the same configuration are denoted by the same reference numerals as those in the first embodiment. In other embodiments, configurations different from those of the first embodiment will be described do.

Hereinafter, a mower protection device according to a first embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Hereinafter, with reference to the accompanying drawings will be described in detail a support device for a protective disk for lawn mowers of the present invention.

1 is a perspective view showing a lawn mower protection device according to an embodiment of the present invention, Figure 2 is a partial cross-sectional perspective view of Figure 1, Figure 3 shows a state in which the protective cover of the lawn mower protection device according to an embodiment of the present invention is installed 4 is an exploded perspective view of the lawn mower protection device according to the embodiment of the present invention.

As shown in the figure is coupled to protrude in the shape of a pipe (pipe) to the power unit (M) installed on one side of the work table 10, the bearing portion (not shown) is formed on the outside, the screw portion (not shown) In the mower protection device for protecting the blade (C) is rotated is formed, the mower protection device of the present invention comprises a safety plate 20, a support member 40, a protective cover 30. .

The safety plate 20 is disposed below the blade C installed at the coupling portion and is coupled by the fastening member B, and a plurality of protrusions 21 are radially formed along the outer circumferential surface.

Support member 40 is to be installed to prevent the rotation of the safety plate 20, both sides of the support member 40 is formed to be installed on the work table 10 and the projection 21, respectively.

Here, the workbench 10 is coupled to the fastening band 11 to which the support member 40 is fixed, and the ring 41 is installed on both sides of the support member 40 to the fastening band 11 and the safety plate 20. Each combined.

In addition, a hook member 12 having a through hole (not shown) is integrally formed at one side of the fastening band 11 so that the hook 41 is installed on the support member 40.

At this time, the fastening band 11 can be prevented from loosening due to the vibration by forming a plurality of protrusions or stoppers in the body formed in a cylindrical shape.

The protective cover 30 is formed in a size that can cover the blade (C) is coupled to the upper portion of the blade (C), the power unit (M) is accommodated in the lower portion, the guide groove 31 on one side It is formed and detachably coupled to the work table (10).

At this time, the protective cover 30 is provided with a lower coupling member 32 is formed with a seating groove 33 is seated on the worktable 10 to the opening side of the guide groove 31, the upper protection of the lower coupling member 32 In order to prevent the cover 30 from being randomly separated from the work table 10, the upper coupling member 34 formed to correspond to the lower coupling member 32 is coupled by the fastening member B.

In addition, at least one of the lower coupling member 32 and the upper coupling member 34 may be provided with a non-slip member 35 such as rubber to prevent slipping.

Here, the non-slip member 35 is one means for preventing the protective cover 30 from being randomly separated from the work table 10 in the coupling of the upper and lower coupling members (32, 34) is not limited thereto. no.

The following describes the combination and operation of the above-described configuration.

On one side of the work table 10, a power unit (M) such as a motor is coupled at an inclination angle (45 to 60 degrees) that is easy for the operator to use, and the lower portion of the power unit (M) has a blade (C) and a safety plate (20). ) Are sequentially arranged and coupled by the fastening member (B). At this time, the blade (C) is reduced by the friction by the bearing portion, and the fastening member (B) is coupled to the screw portion is prevented from being separated.

On the other hand, the protective cover 30 is disposed on the upper portion of the power unit (M), that is, the upper portion of the blade (C) is coupled to be fixed to the work table (10). In the coupling of the protective cover 30 and the work table 10, the lower coupling member 32 is coupled to the opening of the protective cover 30, the upper coupling member 34 is protected on the upper portion of the lower coupling member 32 It is coupled in close contact with the opening side of the lid 30.

In this case, the coupling is not limited thereto, but may be installed by various coupling methods known in the art.

As such, the protective cover 30 and the safety plate 20 installed on the upper and lower portions of the blade C are hit by obstacles to prevent the blade C or the debris of the obstacle from being splashed to prevent a worker or people around from accidents. It can be.

On the other hand, both sides of the support member 40 are respectively installed on the protrusion 21 and the fastening band 11 of the safety plate 20, even if the blade (C) is rotated while caught on the weeds, the safety plate by the support member 40 The rotation of the (20) is prevented to prevent accidents while working effectively weeding.

At this time, the ring 41 is shaped like a binner used for climbing, rock climbing, and the like, and after being inserted into the through hole 22 of the protrusion 21 or the through hole (not shown) of the fastening band 11, the ring ( 41) can be prevented from leaving at random.

Here, in the coupling of the fastening band 11 and the ring 41, the fastening member B is installed in the through hole (not shown) of the fastening band 11 to hook the ring 41, and the fastening member 40 is fastened. Tightening can be used to prevent departures.

In addition, the support member 40 may be made of a lightweight elastic member, such as polychloroprene rubber or styrene butadiene rubber, and may be manufactured including an elastic member such as a spring.

By using such an elastic member, the rotation of the blade C or the shock caused by the safety plate 20 can be absorbed, thereby reducing the fatigue of the operator. In addition, it is possible to elastically react to the impact caused by the safety plate 20 to prevent damage to the product.

At this time, when there are two or more support members 40 installed on the fastening band 11 and the safety plate 20, it is preferable to install them so as to be symmetrical with respect to the work table 10. In this embodiment, two supports are provided. It is demonstrated that the member 40 is provided in the triangle shape which becomes symmetrical.

This triangular structure is because the rotational force and restoring force generated in the safety plate 20 is distributed by both support members 40, the rotational and restoring force of the safety plate 20 using a conventional straight spring, elastic member, or fixing member. The fatigue of the fastening member (B) caught on the worktable 10 is weakened rather than the way to prevent the fastening is not loosened or loosened, there is an advantage that the work efficiency can be improved for a long time.

In addition, the durability of the equipment due to the vibration of the power unit (M) or the impact of the safety plate 20 can be strengthened, reducing the fatigue of the operator can be effective work.

In addition, when the support member 40 is installed in a triangular shape that is symmetrical in this way, it is preferable that the elastic member has the same elastic force.

The scope of the present invention is not limited to the above-described embodiments, but may be embodied in various forms of embodiments within the scope of the appended claims. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the appended claims.

10: workbench 11: fastening band
12: hook member
20: safety plate 21: protrusion
22: Through hole
30: protective cover 31: guide groove
32: lower coupling member 35: non-slip member
40 support member 41 ring
M: Power Unit C: Blade
B: fastening member

Claims

Is coupled to protrude in the shape of a pipe (pipe) to the power unit (M) installed on one side of the worktable 10, the bearing portion is formed on the outside, the screw portion is formed on the inside for the lawn mower for protecting the rotating blade (C) In the protective device,
The safety plate 20 is disposed below the blade (C) is installed in the coupling portion is coupled by the fastening member (B) and a plurality of protrusions 21 are formed radially,
At least one support member 40 installed on the work table 10 and the protrusion 21 of the safety plate 20 so as to prevent rotation of the safety plate 20,
Formed to cover the blade (C) is coupled to the upper portion of the blade (C), the power unit (M) is accommodated in the lower portion, the guide groove 31 is formed on one side of the work table (10) Protective device for mowers, characterized in that it comprises a protective cover (30) detachably coupled to).

The method of claim 1,
The worktable 10 has a fastening band 11 to which one side of the support member 40 is installed, and the support member 40 has a ring 41 coupled to the fastening band 11 and the safety plate 20, respectively. A mower protection device further comprising a.

The method of claim 1,
The work cover 10 is seated on the protective cover 30 and the lower coupling member 32 is installed to the opening side of the guide groove 31, and the work coupling 10 is interposed between the lower coupling member 32. Protective device for mowers, characterized in that it further comprises an upper coupling member (34) coupled to the top.