KR20120118959A

KR20120118959A - Safety device of weeds cutter

Info

Publication number: KR20120118959A
Application number: KR1020110036621A
Authority: KR
Inventors: 이상현
Original assignee: 이상현
Priority date: 2011-04-20
Filing date: 2011-04-20
Publication date: 2012-10-30

Abstract

PURPOSE: A safety system for a grass mower is provided to improve work efficiency by enabling a user to set an appropriate cutting length. CONSTITUTION: A safety system for a grass mower comprises an engine which is worn on the shoulder, a boom stand(1) which is connected to the engine and transfers power, a cutting unit which is installed to the end of the boom stand and comprises a cutting blade which rotates by the power, and a support unit which is installed in the boom stand and is supported on the ground. The support unit comprises a support stand(3), a horizontal shaft(4), and wheels(5).

Description

Safety device for mowers {SAFETY DEVICE OF WEEDS CUTTER}

The present invention relates to a safety device of the mower, and more particularly to a safety device of the mower equipped with a support means to support and move the ground on the boom so that the work is not physically difficult due to the weight of the cutting unit.

Generally, mowers are used to mow grass and weeds, and are mainly used to remove oxygen weeds during sapling.

As shown in FIG. 1, the lawn mower includes an engine unit (not shown) that is worn on a shoulder; A boom connected to the engine unit and transmitting power; It is configured to include a cutting portion (c) having a cutting blade 30 is mounted to the end of the boom 1 is rotated by power.

Therefore, the engine is carried on the shoulder and the handle 2 of the boom 1 is lifted up to perform the cutting operation. The cutting unit 10 is provided with a rotating part 10 having a plurality of gears and a cutting blade 30. As a result of heavy weight, the worker feels physical fatigue when working for a long time, and the working efficiency decreases and the cutting edge tends to sag to the ground, causing the cutting blade to touch the ground or splashing small stones.

The present invention has been made to solve the above problems of the prior art, by having a support means on the boom close to the cutting portion can be cut in a state supported on the ground can reduce physical fatigue due to high weight In addition, the purpose is to provide a safety device for a mower so that the working efficiency can be improved by setting the appropriate cutting length.

An object of the present invention described above, the engine portion to be carried on the shoulder; A boom connected to the engine unit to transmit power; A cutting unit mounted to an end of the boom and having a cutting blade rotated by power; A support means mounted on the boom and supported on the ground, the support means being connected vertically to the boom by a connection member provided at an upper end thereof, the support being adjustable in length; A horizontal axis installed horizontally at right angles to the bottom of the support; It can be achieved by the safety device of the lawn mower characterized in that it comprises a wheel mounted to both ends of the horizontal axis in contact with the ground.

The connecting member is composed of semi-circular first and second rings that are engaged by the coupling of the fastener, a protrusion is formed on the inner circumferential surface of the first and second rings, the second ring is integrally on the upper end of the support And the first ring is separated.

The fastener is rotatably coupled to any one of the bolt and nut or the first and second ring, characterized in that the cam is a lever formed.

The support is composed of the first rod body and the second rod body is fitted to adjust the length, characterized in that the butterfly bolt for fixing the adjusted length is screwed to the upper outer peripheral surface of the second rod body.

The support is characterized in that the protection net is attached to block the splashing of stones or foreign matter.

According to the present invention, by providing the support means on the boom close to the cutting portion, the cutting work can be carried out while being supported on the ground, thereby reducing physical fatigue due to high weight, and setting an appropriate cutting length, thereby improving work efficiency. There is an effect that can be. In addition, the gap between the ground and the cutting blade can be kept constant so that the cutting blade does not touch the ground, so cutting the mowing to a certain length can not only cut neatly, but also the possibility that the cutting blade will touch the ground due to the accumulation of fatigue of the worker is extremely Less accidents can be less, and can prevent collision with small stones can prevent accidents.

1 is a perspective view showing a mower;
Figure 2 is a perspective view showing the support means of the lawn mower safety device according to the present invention,
Figure 3 is a side view showing the support means of the lawn mower safety device according to the invention,
4 is a front view showing the 'support means' of the mower safety device according to the present invention,
5 is a view showing another embodiment of the 'fastener' of the mower safety device according to the present invention,
6a to 6c are views showing various embodiments of the mower safety device 'support' according to the present invention.
7 is a front view showing another embodiment of the lawn mower safety device according to the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view showing a lawn mower, FIG. 2 is a perspective view showing a support means of the lawn mower stabilizer according to the present invention, FIG. 3 is a side view showing a support means of the lawn mower safety device according to the present invention, FIG. Front view showing the 'support means' of the lawn mower safety device according to, Fig. 5 is a view showing another embodiment of the 'fastener' of the lawn mower safety device according to the present invention, Figure 6a to 6c is a lawn mower safety device according to the present invention Figures showing various embodiments of the 'support', Figure 7 is a front view showing another embodiment of the lawn mower safety device according to the present invention.

As shown in Figures 1 to 6, the safety device (A1) of the lawn mower according to the present invention, the engine unit on the shoulder; A boom connected to the engine unit and transmitting power; A cutting part (c) mounted to an end of the boom (1) and provided with a cutting blade (30) rotated by power; It is configured to include a support means (A) mounted on the boom 1 and supported on the ground.

In addition, the support means (A) is connected to the boom (1) by a connecting member (2) provided on the top, the support (3) is adjustable in length; A horizontal axis 4 installed horizontally orthogonal to the lower end of the support 3; It is configured to include a wheel (5) mounted to both ends of the horizontal axis (4) in contact with the ground.

The connecting member 2 is composed of semicircular first and second rings 21 and 22 which are engaged by the coupling of the fastener 6.

In particular, a serration protrusion 23 is formed on the inner circumferential surfaces of the first and second rings 21 and 22 so as to penetrate the outer surface of the boom 1 to be firmly fixed.

Preferably, the second ring 22 is integrally formed at the upper end of the support 3, and the first ring 21 is detachable.

The fastener 6 is fastened to a flange formed on the upper and lower ends of the first and second rings 21 and 22 to exert a clamping force, and a conventional bolt and nut are preferable.

Alternatively, as shown in FIG. 5, the fastener is rotatably coupled to the flange of the first ring 21 and has a cam 60 ′ formed in close contact with the flange of the second ring 22. 6 ') is employed.

Such a lever 6 'is preferably a Quick Realese (QR) lever which is applied to adjust the saddle rod of the bicycle. This is a well-known technical concept and thus its detailed description will be omitted.

The support 3 is composed of the first rod 31 and the second rod 32, which is fitted to be adjusted in length, and the butterfly bolt 33 for fixing the adjusted length of the second rod 32 It is screwed to the upper outer circumferential surface (see FIG. 6A).

That is, the lower part of the first rod body 31 is coupled to the second rod body 32 so as to slide up and down, and the butterfly bolt 33 is provided on the second rod body 32 so that the length can be adjusted.

Therefore, when the butterfly bolt 33 is tightened, the front end portion of the first rod body 31 can penetrate firmly and firmly adhere to the fixing force.

Of course, in addition to the fixing means having a variety of structures will be applicable.

For example, as shown in FIG. 6B, a second stopper 32 includes a ball stopper 34 that is elastically supported by a spring 35 inserted into a groove formed on an outer surface of the first rod 31. Since the hole 36 is formed in plural, the ball stopper 34 is coupled to the hole 36 to exert a fixing force.

Alternatively, as shown in FIG. 6C, a plurality of through holes 38 are formed in the first and second rods 31 and 32, and the pins 37 fit into the selected through holes 38 among the plurality of through holes 38. It may also be applied to the pin coupling method.

Meanwhile, a protective net 7 is attached to the horizontal axis 4 and the support 3 to block the splashing of stones or foreign substances. The protective net 7 is suitably a wire mesh or acrylic plate having a fine mesh.

That is, the lower end of the protection net (7) is fixed to the horizontal axis (4) by bolting or welding, and the middle part is mounted vertically while being supported on the support to prevent the worker's injury by preventing splashing stones or grains of soil during the work. have.

The wheel 5 is circular in a known shape, and is provided between the stopper 41 and the stopper 42 formed at both ends of the horizontal axis 4 and spaced apart at predetermined intervals.

In addition, the wheel 5 is composed of a rim formed by processing a metal plate in a ring shape, and a plurality of spokes 52 connected to the inside of the rim.

In addition, it is also possible to change the shape attached to the tire (not shown) on the outer circumferential surface of the wheel 5 for easier rolling.

In addition, the wheels 5 may be connected via the horizontal axis 4 and the bearing to facilitate rolling operation more.

On the other hand, as shown in Figure 7, the safety device (A2) of the lawn mower according to another embodiment of the present invention, by forming the horizontal axis 4 is bent downward to be close to the ground to the bottom of the protective net 7 This can improve the ability to block splashing stones or granules during mowing.

Although the present invention has been described in connection with the above-mentioned preferred embodiments, it will be apparent to those skilled in the art that various modifications and variations can be made without departing from the spirit and scope of the invention, It is obvious that the claims fall within the scope of the claims.

1: boom 2: connecting member
3: support 4: horizontal axis
5: wheel 7: protection net
10: cutting portion 21: first ring
22: second ring 31: first rod body
32: second rod 33: butterfly bolt
34: ball stopper 35: spring
36: hole 37: pin
38: through-hole

Claims

Shoulder engine portion; A boom connected to the engine unit and transmitting power; A cutting part (c) mounted to an end of the boom (1) and provided with a cutting blade (30) rotated by power; It is mounted to the boom 1 and includes a support means (A) supported on the ground,
The support means (A)
A support (3) connected to the boom (1) by a connecting member (2) provided at the top, the length of which can be adjusted;
A horizontal axis 4 installed horizontally orthogonal to the lower end of the support 3; And
Wheels 5 attached to both ends of the horizontal shaft 4 in contact with the ground
Safety device of the lawn mower comprising a.

The method of claim 1,
The connecting member 2 is composed of semicircular first and second rings 21 and 22 which are engaged by the coupling of the fastener 6,
The protrusions 23 are formed on the inner circumferential surfaces of the first and second rings 21 and 22,
The second ring (22) is integrally formed on the upper end of the support (3), the safety device of the lawn mower, characterized in that the first ring (21) can be separated.

The method of claim 1,
The fastener 6 is a bolt and nut or a lever 6 'rotatably coupled to the flange of the first ring 21 and having a cam 60' tightly attached to the flange of the second ring 22. Safety device for mowers, characterized in that.

The method of claim 1,
The support 3 is composed of the first rod body 31 and the second rod body 32 is fitted, the length is adjusted,
Safety device of the lawn mower, characterized in that the butterfly bolt (33) for fixing the adjusted length is screwed to the upper outer peripheral surface of the second rod (32).

The method of claim 1,
The support 3 is composed of the first rod body 31 and the second rod body 32 is fitted, the length is adjusted,
The ball stopper 34 is elastic and supported by a spring 35 inserted into a groove formed on the outer surface of the first rod 31, and a plurality of holes 36 are formed in the second rod 32. Safety device for mowers, characterized in that the stopper 34 is coupled to the hole (36).

The method of claim 1,
The support 3 is composed of the first rod body 31 and the second rod body 32 is fitted, the length is adjusted,
And a plurality of through holes (38) formed in the first and second rods (31, 32) and fitted into the plurality of through holes (38).

The method of claim 1,
Safety device of the lawn mower, characterized in that the protection net (7) is attached to the horizontal axis (4) and the support (3) to block the splashing of stones or foreign matter.

The method of claim 1,
The wheel 5 is composed of a rim formed by processing a metal plate in a ring shape, and a plurality of spokes 52 connected to the inside of the rim, and a stopper 41 and a stop pin formed at both ends of the horizontal axis 4. Safety device of the lawn mower, characterized in that installed between (42).

The method of claim 8,
Safety device for mowers, characterized in that the tire is attached to the outer peripheral surface of the wheel (5).

The method of claim 8,
The wheel 5 is a safety device of the lawn mower, characterized in that coupled to the horizontal axis (4) and the bearing.

The method of claim 1,
Safety device of the lawn mower, characterized in that the horizontal axis (4) is bent downward to be close to the ground.