KR200432533Y1 - Vehicle type eradicator with a height adjusting apparatus - Google Patents

Abstract

The present invention relates to a riding lawnmower equipped with a height adjustment device, so that the height can be adjusted by the repulsive force of the gas spring so that the driver can easily raise and lower the height of the blade while driving the vehicle, such as stones, trees, seedlings, etc. The mower can be driven to avoid various obstacles, and when moving the vehicle that does not drive the mower, the mowing blade is provided with a height adjusting device using a gas spring that raises the height of the mowing blade to the maximum so as not to obstruct driving. There is a purpose.

The present invention is provided with a chassis for supporting the body, four wheels are fixed to the lower portion of the chassis, the engine is mounted on the lower rear end of the chassis, the steering wheel and the steering portion coupled to the front wheels, In the lawn mowing vehicle having a loading unit at the rear end, a support plate for speaking the mowing blade is provided inside the center of the chassis of the lawn mower, and a support rod is coupled to a lower portion of the support plate, and a lower end of the support rod is provided. A mowing blade protective cover is coupled, a central portion of the mowing blade is axially coupled to the support rod at a lower end of the mowing blade protective cover, and a lower end of the link rod is hinged to a predetermined upper surface of the mowing blade protective cover. The upper end of the link rod is hinged to the lower end of the link rod arm, and the upper end of the link rod arm has a built-in push rod for opening and closing the gas valve. The lower / lower lever is coupled, and the lower end of the push rod is hinged to one end of the rod arm hinged to the chassis, and the other end of the rod arm is moved by the operating force of the rod arm to open and close the gas inlet valve. The other end of the rod is fixed to the lever connected to the gas valve formed in the gas spring, the gas valve is opened and closed according to the movement of the rod, and the gas is moved and filled into the cylinder and the outside according to the opening and closing of the gas valve to The gas spring for moving the upper end of the link rod arm is provided, one end of the gas spring is hinged to the chassis, the other end is hinged to the upper end of the link rod arm.

When the present invention is applied, the mowing blade is not damaged by various obstacles when driving the vehicle by driving the mowing blade to the uppermost level while driving the vehicle without driving the mowing machine, and the driving can be performed quickly. According to various obstacles, the driver can operate the lifting position of the mowing blade lightly and easily while driving, and the mowing height can be adjusted to an unauthorized height, so the convenience is very high.

Mowing, mowing, ascent

Description

VEHICLE TYPE ERADICATOR WITH A HEIGHT ADJUSTING APPARATUS}

1 is a side cross-sectional view showing the overall configuration of a lawn mower equipped with a height adjusting device according to an embodiment of the present invention,

Figure 2a is a side sectional view showing a main blade lowered state in a riding mower equipped with a height adjusting device according to an embodiment of the present invention,

Figure 2b is a sectional side view showing the main portion showing a state that the blade is raised in the riding mower equipped with a height adjustment device according to an embodiment of the present invention.

* Explanation of symbols for main parts of drawings *

1: lever, 2: push rod,

3: lift lever, 5: mowing blade cover,

6: first guide link, 7: gas spring,

8: Lord, 9: Second guide link,

10; rod arm, 11: link rod,

12: link rod arm, 13: gas valve,

14: Mowing Day.

The present invention relates to a riding mower equipped with a height adjusting device, and more specifically, by adjusting the height by the repulsive force of the gas spring so that the driver can easily raise and lower the height of the blade while driving the vehicle. It is possible to drive the lawn mower to avoid various obstacles such as seedlings.In the case of moving the vehicle that does not drive the lawn mower, the lawn mower is equipped with a height adjusting device using a gas spring which raises the height of the blade to the maximum so that it does not interfere with driving. It is about.

As is well known, grass and lawn mowers are generally used as scythes used by hand, but also mowers using a rotating power source are widely used.

The mowers are divided into those provided with an engine that is a power source of its own, and using a battery power source. The mowers equipped with the engines are cumbersome in use because they have to be accompanied by fuel, and they are heavy and have difficulty moving. There are many portable mowers that can be used simply by using a vehicle battery or a portable battery.

The portable mower is equipped with a motor having a mowing blade vertically perpendicular to the ground, and is mowed by the rotational force of the motor, and the neck has a power supply unit for supplying power to the motor, and a switch for shorting the power supply of the power supply unit. Is provided. A battery may be installed directly in the power supply unit, or may supply power to the motor by speaking with a vehicle battery.

In addition, the mowing blade is provided on the left and right sides of the flat rectangular parallelepiped so that the user can mow with the mowing blade maintained at a predetermined distance from the ground.

However, such mowers may not be able to mow the mowing surface smoothly because the mowing blades may come into contact with soil or stone when the ground surface is curved or when the mowing blade of the mower cannot be level with the ground. Care is required, and stones can be bounced off the blades and the risk of an accident being expected.

In addition, since the mowing blades are spaced apart from the ground at regular intervals, that is, the mowing machines must be carried out with both hands, mowing work is difficult, and the work efficiency is deteriorated.

On the other hand, the above-mentioned portable mower is used as a device for mowing grass or grass in a very narrow space, but in recent years, the farming area per person is very large as agriculture is enlarged. In response to this, mowers have started to be supplied with mowers.

The vehicle-type mower is equipped with a means for generating a rotational driving force such as a hydraulic motor on the mower blade in a state in which the mowing blade is rotatably installed at the lower part of the vehicle, and the mowing blade protrudes to one side of the vehicle. In addition to the driving of the car, a dedicated vehicle manufactured to mow the grass at the edge of the farm road.

However, in the case of such a vehicle-type mower, it should be able to move at a higher speed when moving to a mowing area, but since the mowing blade is mounted on the lower part of the vehicle's undercarriage, there are obstacles such as trees and stones in the farm road when the vehicle moves. You will be disturbed.

In addition, since the vehicle-type mower is a device for cutting grass by driving the mower while the vehicle is traveling at a low speed, mowing should be avoided by avoiding seedlings, trees, and stones located at the edge of the farm road. There is a vehicle-type mower that can be used, but there is no device for adjusting the mowing height by using a gas spring. Since the driver should be able to easily adjust the height of the mowing blade while driving, there was a problem that the operation of the mowing part is heavy and difficult to operate.

The present invention has been made in view of the above-described prior art, and the height can be adjusted by the repulsive force of the gas spring so that the driver can easily raise and lower the height of the blade while driving the vehicle. It is an object of the present invention to drive a lawn mower avoiding various obstacles, and when moving a vehicle that does not drive the lawn mower, the purpose of the present invention is to provide a riding mower equipped with a height adjusting device that does not interfere with driving by raising the height of the mowing blade to the maximum.

In order to achieve the above object, according to a preferred embodiment of the present invention is provided with a chassis for supporting the vehicle body, four wheels are fixed to the lower portion of the chassis, the engine is mounted on the lower rear end of the chassis, the front In a mowing vehicle having a steering wheel coupled to a wheel and a steering part, and a rear part having a loading part, a support plate is provided in the center of the chassis of the mowing vehicle to protrude the blade, and a lower part of the support plate is provided. The support rod is coupled to the lower edge of the support rod, the blade blade cover is coupled, the center portion of the blade blade to the lower end of the blade blade cover is axially coupled to the support rod, the upper portion of the blade blade cover On the bottom of the link rod arm is hinged, the top of the link rod is hinged on the bottom of the link rod arm, and the top of the link rod arm is The up / down lever which has a push rod for opening / closing the gas valve is coupled, and the lower end of the push rod is hinged to one end of the rod arm hinged to the chassis, and at the other end of the rod arm The rod moved by the operating force of the rod arm is coupled to open and close the valve, and the other end of the rod is fixed to a lever connected to the gas valve formed on the gas spring, and the gas valve opens and closes according to the movement of the rod. A gas spring is provided to move and fill gas into and out of the cylinder to move the upper end of the link rod arm by its repulsive force, one end of the gas spring is hinged to the chassis, and the other end is connected to the upper end of the link rod arm. A riding lawnmower having a height adjusting device characterized in that the hinge is provided.

Preferably, the link rod arm is formed of a "∨" shape, a hinge axis is formed at the center thereof, the hinge axis is hinged to the chassis to rotate about the hinge axis by the operation of the lift / lower lever. There is provided a riding mower equipped with a height adjusting device characterized in that the movement.

Preferably, the chassis and the blade protection cover is provided with a riding mower equipped with a height adjusting device, characterized in that the first and second guide links are hinged at both ends to guide vertical movement of the blade protection cover. do.

Hereinafter, the present invention will be described in detail with reference to the drawings.

1 is a side cross-sectional view showing the overall configuration of a riding mower equipped with a height adjusting device according to an embodiment of the present invention, Figure 2a is a lawn mower with a height adjusting device according to an embodiment of the present invention It is a main sectional side view showing the lowered state of the blade, Figure 2b is a main sectional side view showing a state in which the mowing blade is raised in a riding mower equipped with a height adjusting device according to an embodiment of the present invention.

Referring to this, the riding lawnmower 20 equipped with a height adjusting device according to an embodiment of the present invention is capable of height adjustment by the repulsive force of the gas spring so that the driver can easily raise and lower the height of the blade while driving the vehicle. By doing so, it is possible to drive the lawn mower avoiding various obstacles such as stones, trees, seedlings, and when riding a vehicle that does not drive the lawn mower, it is a passenger lawn mower that raises the height of the blade to the maximum so as not to disturb driving.

More specifically, the riding lawnmower 20 having a height adjusting device according to an embodiment of the present invention, like an agricultural vehicle such as a general tractor, is provided with a chassis 22 forming a frame of a vehicle body, and its chassis Four wheels 24 are respectively coupled to the wheel shaft at four corners of the lower part of the lower part 22, and the engine 34 is mounted at the lower rear end of the chassis 22, and the front wheel 24 is axially coupled to the wheel shaft. The steering wheel 28 and the steering part 26 are provided, the loading part 32 is provided in the upper part of a rear end, and the chair 30 is attached to the center upper surface of the chassis 22. As shown in FIG.

Accordingly, the driver can drive the lawn mower while driving in the chair 30 of the lawn mower 20 having the height adjusting device according to the embodiment of the present invention.

At this time, the riding lawnmower 20 is provided with a height adjustment device according to an embodiment of the present invention is provided with a support plate 17 for addressing the mowing blade 14 in the center of the chassis 22, The support rod 16 is coupled to the lower portion of the support plate 17, the cutting blade protective cover 5 is coupled to the lower end of the support rod 16, and the cutting blade 14 is attached to the lower edge of the blade protection cover 5. Is centrally coupled to the support rod 16.

A rotating rod (not shown) is provided inside the support rod 16 and is coupled to the mowing blade 14, and the mowing blade 14 rotates by receiving a driving force through the rotating rod. When the grass is mowed, the configuration of the pulley coupled to the driving force of the vehicle engine and receiving the driving force to the mowing blade 14 is a general publicly known technology, and the present invention is a technique for adjusting the height of the mowing blade, so that mowing The configuration of the drive force transmission of the blade 14 will be omitted.

Hereinafter, the height adjusting device of the riding lawn mower 20 with a height adjustment device according to an embodiment of the present invention, the riding lawnmower 20 with a height adjustment device according to an embodiment of the present invention is The height of the mowing blade 14 is adjusted by the lifting operation of the mowing blade protective cover 5.

That is, the mowing blade protection cover 5 is to lift the mowing blade protection cover 5 through an operation operation in which the driver pulls or pushes down the lifting lever 3 installed on the side of the chair 30. , The lifting lever 3 has a lower end is coupled to the upper end of the link rod arm 12, the link rod arm 12 is formed of a "∨" shape, the center of the hinge (a) is coupled By the operation of the lifting lever (3) is rotated about the hinge (a) axis.

In addition, an upper end of the link rod 11 is hinged to a lower end of the link rod arm 12, and a lower end of the link rod 11 is hinged to an upper surface of the mowing blade cover 5.

Therefore, when lifting the lifting lever (3), the upper end of the link rod arm 12 is rotated about the hinge (a) axis, as shown in Figure 2b, the lower end of the link rod arm 12 Pulls out the link rod 11, the mowing blade protective cover 5 hinged to the link rod 11 is raised upward.

At this time, since the mowing blade 14 and the mowing blade protection cover 5 have a large self-weight, it is difficult to lift only by the driver's power through the lifting lever 3, so that the driver can easily cut the mowing blade 14 with a small force. In the present invention, the gas spring 7 is provided to lift the mowing blade protective cover 5.

The gas spring 7 is a general known gas spring, and briefly explaining the configuration, first, the gas spring 7 is a cylinder 7a in which a spring (not shown) is built in the same way as a general hydraulic cylinder, and the cylinder (7a) is made up of a rod 7b partially inserted therein, and one end of the rod 7b is coupled with a lever 1 provided with a gas valve 13, and gas inside the cylinder 7a is temporarily A discharge chamber (not shown) is provided.

Therefore, when the gas valve 13 is opened while the rod 7b is introduced into the cylinder 7a, the high pressure gas stored in the chamber flows into the cylinder 7a to push the rod 7b. On the contrary, when the gas valve 13 is opened in a state in which the rod 7b flows out from the outside of the cylinder 7a, the gas filled in the cylinder 7a flows out into the chamber and the rod 7b. To flow into the cylinder 7a. In other words, as the gas flows in and out of the cylinder 7a as the gas valve 13 opens and closes, the rod 7b flows in and out of the cylinder 7a. Of course, in the present invention, the lawnmower 14 may be raised and lowered using a hydraulic cylinder (not shown) in addition to the gas spring 7, but in the case of the hydraulic cylinder, a separate hydraulic device must be provided, thereby increasing the cost. Since the wiring relationship becomes complicated, it is more preferable to apply the gas spring 7 for easy elevating.

In the present invention, one end of the gas spring 7, that is, one end of the cylinder 7a, is hinged to the upper end of the link rod arm 12, and the other end of the piston rod 7b has a chassis ( 22).

In addition, a push rod 2 for opening and closing a gas valve is installed inside the lifting lever 3, and a lower end of the push rod 2 is hinged f to a chassis 22. One end of the rod 10 is hinged, and the other end of the rod arm 10 is coupled to a rod 8 which is moved by the rotational force of the rod arm 10 to open and close the gas outlet valve 13, and the rod 8 The other end of the) is fixed to the lever (1) connected to the gas valve 13 formed on the gas spring (7), the gas valve 13 is opened and closed in accordance with the movement of the rod (8), the opening and closing of the gas valve (13) Accordingly, the gas is moved and filled into and out of the cylinder 7a to move the upper end of the link rod arm 12 by the repulsive force.

That is, as shown in FIG. 2a, when the driver pushes the push rod 2 provided in the lifting lever 3 while the lifting lever 3 is lowered to lower the cutting blade 14. The rod arm 10 hinged to the lower end of the push rod 2 is rotated about the hinge f to pull the rod 8, and the gas spring 7 coupled to the rod 8. When the gas valve 13 is opened and the lifting lever 3 is lifted in the state, the external gas flows into the cylinder 7a of the gas spring 7 while the link rod coupled with the lifting lever 3 is opened. As the repulsive force of the gas spring 7 is applied to the arm 12, it is easily lifted.

Since the gas spring 7 is coupled through the link rod arm 12 and the hinge g, the gas rod 7 pushes the link rod arm 12 around the hinge g, and the link rod arm 12 is Since it is coupled through the hinge (a), by the repulsive force of the gas spring (7) received on the top is to rotate around the hinge (a).

In this state, when the pressing force of the push rod 2 is released, the gas valve 13 is closed and the gas is fixed inside the cylinder 7a.

In addition, when the link rod arm 12 rotates, the link rod 11 hinged to the lower end of the link rod arm 12 is pulled upward, and the lower end of the link rod 11. Since the hinge is coupled to the upper surface of the mowing blade protective cover 5, the mowing blade protective cover 5 is also moved upward in accordance with the ascending operation of the link rod 11.

At this time, both ends of the first and second guide links 6 and 9 are coupled to the chassis 22 and the blade protection cover 5 by hinges b, c, d, and e, respectively. Guide the vertical movement.

On the other hand, as shown in FIG. 2B, the driver pushes the push rod 2 provided on the lifting lever 3 while the lifting lever 3 is pulled upward so that the cutting blade 14 is raised. When pressurized, the rod arm 10 hinged to the lower end of the push rod 2 is rotated about the hinge f to pull the rod 8, and the gas spring coupled to the rod 8 is pressed. The gas valve 13 of 7 is opened.

When the lifting lever 3 is lowered in this state, the gas of the cylinder 7a of the gas spring 7 flows out to the outside, and the gas spring 7 is connected to the link rod arm 12 coupled with the lifting lever 3. The gas outflow repulsion force is applied and gradually descends.

Since the gas spring 7 is coupled through the link rod arm 12 and the hinge g, the upper end of the link rod arm 12 descends around the hinge g, and the link rod arm 12 ) Is coupled through the hinge (a), the rotational movement around the hinge (a) by the repulsive force of the gas spring (7) received on the top.

In this state, when the pressing force of the push rod 2 is released, the gas valve 13 is closed and the gas is fixed while being discharged to the outside of the cylinder 7a.

In addition, when the link rod arm 12 rotates, the link rod 11 hinged to the lower end of the link rod arm 12 is lowered downward, and the lower end of the link rod 11 Since the hinge blade is coupled to the upper surface of the mowing blade protective cover 5, the mowing blade protective cover 5 is also moved downward in accordance with the lowering operation of the link rod 11.

On the other hand, the riding lawnmower equipped with a height adjusting device according to an embodiment of the present invention is not limited to the above embodiments, but various modifications can be made without departing from the technical gist of the present invention.

As described above, the riding mower equipped with the height adjusting device using the gas spring according to the present invention is to lift the cutting blade to the uppermost level when driving the vehicle that does not drive the mower, so that the cutting blade is not damaged by various obstacles when driving, There is an advantage that can be carried out, according to various obstacles such as seedlings and boulder even during the operation of the mower, the driver can easily operate the mowing position while driving, and the mowing operation at an unauthorized height is very convenient.

Claims (3)

A chassis supporting the vehicle body is provided, four wheels are fixed to the lower part of the chassis, an engine is mounted on the lower part of the rear end of the chassis, a steering wheel coupled to the front wheel, a steering part, and a rear part of the rear part. In the mowing vehicle equipped with a loading unit, A support plate is provided in the center of the undercarriage of the lawn mower to support the blade, a support rod is coupled to the lower portion of the support plate, and a mowing blade protection cover is coupled to the bottom of the support rod. The central portion of the blade blade is axially coupled to the support rod at the lower end, the lower end of the link rod is hinged to a predetermined upper surface of the mowing blade protective cover, the upper end of the link rod is hinged to the lower end of the link rod arm The upper end of the link rod arm is coupled with an up / down lever having a push rod for opening and closing the gas valve therein, and the lower end of the push rod is hinged with one end of a rod arm hinged to the chassis. The other end of the rod arm is coupled to the rod moved by the operating force of the rod arm to open and close the gas inlet and outlet valve, the other end of the rod is a gas formed in the gas spring The gas valve is opened and closed according to the movement of the rod, and the gas is moved up and down based on the piston inside the cylinder according to the opening and closing of the gas valve. The gas spring is provided, one end of the gas spring is hinged to the chassis, the other end is hinged to the upper end of the link rod arm characterized in that the initial use example with a height adjustment device. According to claim 1, wherein the link rod arm has a "∨" shape, a hinge axis is formed at the center thereof, the hinge axis is hinged to the chassis to the hinge shaft by the operation of the lifting / lowering lever Riding mower with a height adjustment device characterized in that the rotational movement to the center. The height adjustment device of claim 1, wherein both ends of the first and second guide links are hinged to the chassis and the blade protection cover to guide vertical movement of the blade protection cover. Mowers.

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