KR102360417B1 - Floor cutting machine with three wheel - Google Patents

Abstract

According to the present invention, there is provided a three-wheeled floor cutter, comprising: a main frame for supporting equipment necessary for cutting the floor in a straight line when the direction in which the floor cutter advances is the front and the opposite direction is the rear; one rear wheel located at the rear center of the main frame; two front wheels positioned at both front ends of the main frame; a cutting frame having one side fixed near the rear of the main frame and the other side moving up and down; A cutting shaft is positioned in the vicinity of the other side of the cutting frame, and a cutting blade that can be fitted at both ends of the cutting shaft is provided.

Description

Three Wheel Floor Cutter {FLOOR CUTTING MACHINE WITH THREE WHEEL}

The present invention relates to a floor cutter, and more specifically, in a three-wheeled floor cutter, when the direction in which the floor cutter advances is the front and the opposite direction is the rear, the main frame that supports the equipment necessary for cutting the floor in a straight line ; one rear wheel located at the rear center of the main frame; two front wheels positioned at both front ends of the main frame; a cutting frame having one side fixed near the rear of the main frame and the other side moving up and down; A cutting shaft is positioned near the other side of the cutting frame, and it relates to a floor cutter characterized in that it includes a cutting blade that can be fitted at both ends of the cutting shaft.

Looking at the existing floor cutter, the cutting blade is attached to the main frame, and the cutting blade also moves up and down according to the movement of the main frame.

1 is a view showing a state of a conventional cutting machine. Referring to FIG. 1 , it can be seen that the main frame moves up and down about the rear wheel by manipulating the position of the front wheel. Also, it can be seen that the cutting blade attached to the main frame moves together. As above, the existing cutting machine could not move separately because the cutting blade was attached to the main frame.

In addition, in the case of the existing cutting machine, it had a configuration consisting of four wheels, and in this case, there was a problem in that it was impossible to control the direction during operation.

Accordingly, the present inventor intends to propose a three-wheeled floor cutting machine.

An object of the present invention is to solve all of the above problems.

Another object of the present invention is to attach a cutting blade to a cutting frame separate from the main frame so that the cutting blade can move regardless of the main frame.

In addition, another object of the present invention is to make it possible to easily adjust the direction of the cutting machine by including auxiliary wheels in addition to the front wheel and the rear wheel.

In addition, another object of the present invention is to maximize the dust collection and sound insulation effect by allowing the dust collection cover to be operated separately.

In addition, another object of the present invention is to enable the floor cutting machine to quickly change direction even in a narrow space including one rotatable rear wheel.

In order to achieve the object of the present invention as described above and to realize the characteristic effects of the present invention to be described later, the characteristic configuration of the present invention is as follows.

According to one aspect of the present invention, in a three-wheeled floor cutting machine, when a direction in which the floor cutting machine advances is a front and an opposite direction is a rear, a main frame for supporting equipment necessary for cutting the floor in a straight line; one rear wheel located at the rear center of the main frame; two front wheels positioned at both front ends of the main frame; a cutting frame having one side fixed near the rear of the main frame and the other side moving up and down; A cutting shaft is positioned near the other side of the cutting frame, and a bottom cutting machine is provided, comprising cutting blades that can be fitted at both ends of the cutting shaft.

According to the present invention, the following effects are obtained.

The present invention has the effect of attaching the cutting blade to a cutting frame separate from the main frame so that the cutting blade can move regardless of the main frame.

The present invention has the effect of enabling the direction adjustment of the cutting machine to be easily adjusted by including auxiliary wheels in addition to the front wheel and the rear wheel.

The present invention has the effect of maximizing the dust collection and sound insulation effect by allowing the dust collection cover to be operated separately.

The present invention has the effect of enabling the floor cutter to change direction quickly even in a narrow space including one rotatable rear wheel.

1 is a view showing a state of a conventional cutting machine.
2 is a view showing a state of the floor cutting machine according to an embodiment of the present invention.
3 is a view illustrating a bottom cutting machine as viewed from below according to an embodiment of the present invention.
4 is a view showing an auxiliary wheel according to an embodiment of the present invention.
5 is a view showing a floor cutter to which the dust collection cover is coupled according to an embodiment of the present invention.
6 is a view specifically showing a dust collecting cover according to an embodiment of the present invention.
7 is a view showing a dust collecting cover according to another embodiment of the present invention.
8 is a view showing a view from below of a three-wheeled floor cutter including one rotatable rear wheel according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS [0012] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS [0010] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS [0010] Reference is made to the accompanying drawings, which show by way of illustration specific embodiments in which the present invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the present invention. It should be understood that the various embodiments of the present invention are different but need not be mutually exclusive. For example, certain shapes, structures, and characteristics described herein with respect to one embodiment may be implemented in other embodiments without departing from the spirit and scope of the invention. In addition, it should be understood that the location or arrangement of individual components within each disclosed embodiment may be changed without departing from the spirit and scope of the present invention. Accordingly, the following detailed description is not intended to be taken in a limiting sense, and the scope of the present invention, if properly described, is limited only by the appended claims, along with all scope equivalents to those claimed. Like reference numerals in the drawings refer to the same or similar functions throughout the various aspects.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings in order to enable those of ordinary skill in the art to easily practice the present invention.

First, in the case of FIG. 1, it is a view showing the state of the existing floor cutting machine as described above.

In the case of an existing floor cutter, a rear wheel on one side of the main frame and a cutting blade on the other side are provided so that the cutting blade moves along with the movement of the main frame.

By adjusting the front wheel attached to the bottom of the main frame, the operation (tilt) of the main frame can be adjusted, and specifically, the vertical movement of the cutting blade can be adjusted around the fixed rear wheel of the main frame.

Therefore, in the existing invention, the cutting blade must always move together with the main frame. However, in the case of the present invention, the cutting blade including the cutting frame other than the main frame is set to move separately from the main frame. This will be described later below.

2 is a view showing a state of the floor cutting machine according to an embodiment of the present invention. Specifically, Fig. 2 (a) shows a state in which the cutting blade is not raised, and Fig. 2 (b) is a view showing a state in which the cutting blade is raised.

Also, FIG. 3 is a view showing a bottom cutting machine according to an embodiment of the present invention as viewed from below.

For the sake of explanation, the direction in which the floor cutter moves can be set as forward and the opposite direction as rear.

The floor cutter 10 generally cuts a floor (eg, concrete, rock, etc.) in a straight line, and may include a related power engine/motor, a speed reducer, and the like. The main frame 100 may support the equipment necessary for cutting the floor, such as the power engine/motor and a speed reducer. That is, the devices may be located directly or indirectly on top of the main frame.

Two rear wheels 110 may exist at both rear ends of the main frame 100 , and two front wheels 120 may exist at both front ends of the main frame 100 . Here, the front wheel 120 may have a smaller diameter than the rear wheel 110 .

For reference, since power is present in the rear wheel 110 , the floor cutter 10 may be driven by four wheels. 4 , the two front wheels 120 may be connected by a front wheel shaft 121 , and the two rear wheels 110 may be connected by a rear wheel shaft 111 .

Next, the floor cutter 10 of the present invention may include a cutting frame 200 . One side of the cutting frame 200 is fixed near the rear of the main frame 100 and the other side can move up and down.

In addition, the cutting shaft 230 is positioned near the other side of the cutting frame 200 , and the cutting blade 300 may be fitted at both ends of the cutting shaft 230 .

As can be seen in FIG. 2 , one side of the cutting frame 200 is hinged 210 near the rear of the main frame 100 . That is, while one side of the cutting frame 200 is fixed, the other side moves downward (Fig. 2(a)) or upward (Fig. 2(b)), and the cutting blade 300 located near the other side also moves up and down. do.

As a power source for allowing the cutting frame 200 to move, a hydraulic cylinder (S, referred to as a first hydraulic cylinder to be distinguished from a hydraulic cylinder to be described later) may exist. The first hydraulic cylinder S is connected between the main frame 100 and the cutting frame 200 to move the other side of the cutting frame 200 up and down.

That is, when the length of the first hydraulic cylinder S is increased by the piston movement, the other side of the cutting frame 200 moves upward, and when the length decreases, the other side of the cutting frame 200 moves downward. The operator can control the vertical movement of the cutting blade 300 while manipulating only the first hydraulic cylinder (S).

4 is a view showing an auxiliary wheel according to an embodiment of the present invention. Specifically, Fig. 4 (a) shows a state when the auxiliary wheel is raised to the upper side, Fig. 4 (b) shows a state when the auxiliary wheel is lowered to the lower side.

First, the position of the auxiliary wheel 400 is present in the front side than the rear wheel 110 , and specifically, it may exist in a position close to the rear wheel 110 between the front wheel 120 and the rear wheel 110 .

For reference, two auxiliary wheels 400 are included in the floor cutter 10 , and each of the two auxiliary wheels 400 may exist in front of the two rear wheels 110 , respectively.

The auxiliary wheel 400 can be moved up and down by the second hydraulic cylinder 410 located at the top. That is, the operator may control the position of the auxiliary wheel 400 by manipulating the second hydraulic cylinder 410 .

The second hydraulic cylinder 410 may be positioned between two pillar frames 131 (a component supporting the shielding cover 130) to be described later. Specifically, the two pillar frames may be located immediately behind the front side pillar frame.

When the auxiliary wheel 400 is located on the upper side, the auxiliary wheel 400 does not touch the floor, and the floor cutter (10) is supported on the floor by two front wheels (120) and two rear wheels (110). and the floor cutter 10 is driven by a four-wheel drive.

On the other hand, when the auxiliary wheel 400 is located on the lower side, the two rear wheels 110 do not contact the floor, and are supported by the two front wheels 120 and the two auxiliary wheels 400 on the floor. , the floor cutter 10 is also 4 wheel drive. That is, the auxiliary wheel 400 can replace the rear wheel 110 .

As described above, the auxiliary wheel 400 can replace the rear wheel 110 because the auxiliary wheel 400 is rotatable differently from the rear wheel 110 so that the direction can be adjusted.

That is, the operator can drive the floor cutter 10 by lowering the auxiliary wheel 400 using the second hydraulic cylinder 410 and rotating the auxiliary wheel 400 .

Meanwhile, although not specifically illustrated in the drawings, the cross section of the cutting blade 300 of the present invention may have a circular shape, and grooves for cutting the floor may be present at regular intervals outside the circular shape. The shape of the groove may be different depending on the case, and may be usually in the form of a rectangle.

The cutting frame 200 of the present invention may include a power motor 220, a speed reducer (not shown), and the like at the upper end. The power motor 220 and the speed reducer are devices that support the movement of the floor cutter 10 and may be controlled by an operator.

In addition, a plurality of pillar frames 131 connected from the main frame 100 are present on the rear side, and these may support the shielding cover 130 . For reference, the shielding cover 130 may protect the power motor 220 and the speed reducer.

5 is a view showing a floor cutter to which the dust collection cover is coupled according to an embodiment of the present invention. 6 is a view specifically showing a dust collecting cover according to an embodiment of the present invention.

As can be seen in FIG. 5 , the front frame 140 is present on the front side of the main frame 100 . The front frame 140 may be detachably attached to the main frame 100 by bolting or the like.

In addition, there is a second dust collecting cover fixing pin 150 for attaching the dust collecting cover 500 to the front side of the front frame 140 , and the first dust collecting cover fixing pin 150 is located on the rear side of the front wheel 110 in the main frame 100 . A cover fixing pin 160 is present.

The first dust collecting cover fixing pin 160 and the second dust collecting cover fixing pin 150 correspond to pins for coupling with the dust collecting cover 500 of the present invention.

Specifically, a first pillar 520 , a second pillar 530 , and a third pillar 540 may exist as elements connecting the dust collecting cover 500 and the floor cutter 10 . In this case, the first pillar 520 may be insertedly connected to the first dust collecting cover fixing pin 160 , and the second pillar 530 may be inserted and connected to the second dust collecting cover fixing pin 150 .

That is, there is a groove at the lower end of the first pillar 520 and the second pillar 530 , and the first dust collecting cover fixing pin 160 and the second dust collecting cover fixing pin 150 can be inserted and connected to the groove. will be.

Therefore, it is easy to connect (install) or release the dust collecting cover 500 of the present invention to the floor cutter 10 .

In addition, the third pillar 540 connects the first pillar 520 and the second pillar 530 at the upper end, and the first pillar 520 , the second pillar 530 and the third pillar 540 . This can be done in a U-shape.

On the other hand, the dust collection cover 500 of the present invention is operated with a wire 550 fixedly connected to the upper end, and a wire operation unit exists as a part supporting the operation of the wire 550 .

The wire manipulation unit may include a controller such as an operating lever 560 . In addition, the wire manipulator may manipulate the movement of the wire 550 using a hydraulic cylinder. For reference, the wire manipulation unit may be located around the shielding cover 130 .

The wire 550 may have one side fixed to the upper end of the dust collecting cover 500 , pass through a roller positioned at the center of the third pillar 540 , and the other end fixed to the wire manipulation unit.

That is, the wire 550 corresponds to an element connecting between the wire manipulation unit and the dust collecting cover 500, the movement of the wire 550 is manipulated by the wire manipulation unit, and the dust collecting cover fixed to one side of the wire 550 ( 500) can also be moved up and down.

On the other hand, the method of connecting the dust collecting cover 500, the first pillar 520, and the second pillar 530 is as follows.

First, a plurality of fixing grooves are attached to the dust collecting cover 500 , and the plurality of fixing grooves include a first fixing groove 521 , a second fixing groove 522 , a third fixing groove 531 , and a fourth fixing groove. (532). Here, the fixing grooves have vertical through-holes so that the pillars can be inserted, and one surface of the fixing grooves is fixedly attached to the dust collecting cover 500 .

The first pillar 520 is inserted into the first fixing groove 521 located at the bottom and the second fixing groove 522 located at the top to be connected to the dust collecting cover 500, and the second pillar 530 is It may be inserted into the third fixing groove 531 located at the lower end and the fourth fixing groove 532 located at the upper end to be connected to the dust collecting cover 500 .

At this time, on the first pillar 520 , a first spring 523 is present between the second fixing groove 522 and the third pillar 540 , and the fourth fixing groove 532 and the second fixing groove 532 on the second pillar 530 . A second spring 533 may exist between the third pillars 540 .

The first spring 523 and the second spring 533 may serve to apply an elastic force in the floor direction with respect to the dust collecting cover 500 , so that the dust collecting cover 500 is easily attached to the floor.

The dust collection cover 500 of the present invention surrounds the cutting blade 300 of the floor cutter 10 and collects dust, water, sludge, etc. generated during the operation of the cutting blade 300 in one place (dust collection effect). do. In addition, it is also possible to remove the noise generated during operation (sound insulation effect).

Elements included in the dust collecting cover 500 for the above dust collecting effect and soundproofing effect are as follows.

First, a rubber cover 580 is attached to the lower end of the dust collecting cover 500 , and the rubber cover 580 collects dust so that wastes (ex, dust, etc.) generated during the operation of the cutting blade 300 do not leak to the outside. perform the role

In addition, a dust collecting hole 510 is present at the rear of the lower end of the dust collecting cover 500 so that wastes collected by the rubber cover 580 and the like can be discharged in one place. According to an embodiment, the waste collected by external power may be withdrawn through the dust collecting port 510 .

In addition, wheels 590 are present at each front and rear of the lower end of the dust collecting cover 500 , so that the dust collecting cover 500 can be easily moved during operation. The wheels 590 are attached to the outer lower end of the dust collecting cover 500 , and a total of four wheels 590 may exist, two on the left and right.

For reference, when the cutting blade 300 is working, the rubber cover 580 may be in close contact with the floor to maximize dust collection and sound insulation effects.

According to one embodiment, during operation, the wheel 590 is positioned above the rubber cover 580 (about 5 mm) so as not to interfere with the dust collection and soundproofing effects of the rubber cover 580 . In this case, when the floor cutter 10 is moved, the dust collecting cover 500 may be moved upward to cause the wheels 590 to come down to move it.

According to another embodiment, the wheel 590 is located at the lower end than the rubber cover 580 during operation, but it is possible to consider dust collection and soundproofing effects by making almost no gap between the rubber cover 580 and the floor.

On the other hand, a hole 570 exists from the center to the bottom of the dust collecting cover 500 , and the center of the cutting blade 300 can move up and down in the hole 570 . That is, the operator can check the movement of the cutting blade 300 in the hole 570 .

In addition, a plurality of brushes (attached to the left and right) may be provided in the hole 570 to cover the waste generated by the cutting blade from being discharged to the outside. The brush may be made of a material such as rubber and have a structure that can be bent.

In the present invention, while the main frame 100 is fixed, only the cutting frame 200 can move up and down, and accordingly, the cutting blade 300 fixed to the cutting frame 200 can move up and down.

In addition, the dust collecting cover 500 of the present invention, unlike the conventional dust collecting cover, moves separately from the main frame 100, and can be moved up and down by a separate manipulation unit.

As described above, by separately moving the main frame 100 and the cutting blade 300 and moving the dust collecting cover 500 separately, the operator can effectively collect dust and the like generated during work and remove noise.

In addition, if the dust collecting cover always covers the cutting blade as in the existing invention, it is difficult to find a cutting position. On the other hand, in the present invention, even when the cutting blade 300 is lowered, it is possible to move the dust collecting cover 500 upward, so that the operator can see it with the naked eye and place it exactly at the position to be cut.

7 is a view showing a dust collecting cover according to another embodiment of the present invention.

As can be seen in FIG. 7 , the dust collecting cover 500 may be separated into two components and detachable. Specifically, the upper configuration 500-1 includes elements coupled to the pillars, holes 570, and the like, and the bottom configuration 500-2 includes a dust collector 510, a rubber cover 580, and a wheel ( 590) and others.

For reference, the upper configuration 500-1 and the lower configuration 500-2 may be coupled to both sides by bolting.

As described above, since the dust collecting cover 500 has a structure that can be separated and coupled, the dust collecting cover 500 can be moved more easily from the operator's point of view, and repair and management can be easy.

Meanwhile, although not shown, a cutting stop frame for stopping the cutting shaft 230 with a simple structure may exist.

The cutting stop frame may exist above the cutting frame 200 , and one side of the cutting stop frame is hinged with the cutting frame 200 so that the cutting stop frame can move up and down. For reference, the other side of the cutting stop frame is not connected to the cutting frame 200 , and the cutting shaft 230 may exist under the other side of the cutting stop frame. In addition, the power engine 220 and the speed reducer may be present above the cutting stop frame.

When the cutting stop frame operates downward, pressure is applied to the cutting shaft 230 attached to the cutting frame 200 with the power engine 220 , the reducer and its own load. That is, the cutting shaft 230 is pressed by applying a downward force to the cutting shaft 230 by the self-load of the cutting stop frame, and the cutting blade 300 is not operated to stop the cutting.

That is, the operator may simply operate only the movement of the cutting stop frame to stop the operation of the cutting blade 300 and stop the cutting operation.

8 is a view showing a view from below of a three-wheeled floor cutter including one rotatable rear wheel according to an embodiment of the present invention.

That is, instead of two rear wheels 110 on both rear sides of the main frame 100 , one rear wheel 110 ′ may exist in the rear center of the main frame 100 .

As a result, the three-wheeled floor cutter may have a structure including two front wheels 120 and one rear wheel 110'.

For reference, the rear wheel 110 ′ is rotatable so that the direction in which the floor cutter 10 moves can be adjusted. Here, the rotation of the rear wheel 110' may be manipulated by the operator. That is, the operator may operate the rotation of the rear wheel 110 ′ by the controller and may operate the movement of the floor cutter 10 .

On the other hand, auxiliary wheels 400 are included on both sides of the front of the rear wheel 110' of the three-wheeled floor cutter 10, and the auxiliary wheels 400 are moved up and down by the second hydraulic cylinder 410 located at the top. can be moved with

At this time, when the auxiliary wheel 400 is located on the upper side, it is supported by two front wheels 120 and one rear wheel 110 ′ on the floor, so that the floor cutter 10 is three-wheeled, and the auxiliary When the wheel 400 is located on the lower side, the rear wheel 110 ′ does not contact the floor, and is supported by two front wheels 120 and two auxiliary wheels 400 on the floor, so that the floor cutter 10 . will be 4 wheel drive.

For reference, since the three-wheeled floor cutter differs from the four-wheeled floor cutter only in the number of wheels, the above contents in consideration of the four-wheeled floor cutter may be applied to the three-wheeled floor cutter as well.

Currently, most floor cutters are composed of four wheels, and in the case of the three-wheeled floor cutter 10 as above, it is easy to change direction in a narrow space by using one rotatable rear wheel, and the direction change is more agile. It is possible.

The embodiment of the floor cutting machine according to the embodiment described above is merely exemplary, and those of ordinary skill in the art to which the present invention pertains may change the technical spirit or essential features of the present invention to other specific forms without changing the technical spirit or essential features of the present invention. It will be appreciated that it can be easily transformed. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. For example, each component described as a single type may be implemented in a dispersed form, and likewise components described as distributed may be implemented in a combined form.

The scope of the present invention is indicated by the following claims rather than the above detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be interpreted as being included in the scope of the present invention. something to do.

10: floor cutter
100: main frame
110: rear wheel
120: front wheel
130: shield cover
131: pillar frame
140: front frame
150: second dust collection cover fixing pin
160: first dust collection cover fixing pin
200: cutting frame
210: hinge combination
220: power motor
230: cutting axis
S: 1st hydraulic cylinder
300: cutting blade
400: auxiliary wheel
410: second hydraulic cylinder
500: dust cover
510: dust collector
520: first pillar
530: second pillar
540: the third pillar
550: wire
560: actuation lever
570: Hall
580: rubber cover
590: wheel

Claims (6)

In the floor cutter,
When the direction in which the floor cutter advances is referred to as the front and the opposite direction is referred to as the rear,
a main frame supporting the equipment needed to cut the floor;
one rear wheel located at the rear center of the main frame;
two front wheels positioned at both front ends of the main frame;
a controller for adjusting the direction in which the floor cutter advances by manipulating the rotation of the rear wheel;
a cutting frame having one side fixed near the rear of the main frame and the other side moving up and down;
a cutting blade having a cutting shaft positioned near the other side of the cutting frame and fitted at both ends of the cutting shaft;
a cutting stop frame provided to stop the cutting operation of the cutting blade; and
A dust collecting cover connected to the floor cutter is detachable and provided to enable elevating and lowering,
The cutting stop frame is provided so that one side of the cutting stop frame is hinged with the cutting frame to move up and down,
The cutting stop frame is provided so that the other side of the cutting stop frame is positioned above the cutting shaft, so that the cutting stop frame operates downward to stop the cutting operation of the cutting blade,
The dust collecting cover is
A lower cover attached to the lower end of the dust collecting cover to collect foreign substances on the floor generated during the cutting operation;
A hole located on one side of the dust collecting cover so that the operator can see that the center of the cutting blade moves up and down, and
and a brush capable of covering the hole to prevent foreign substances generated by the cutting blade from being discharged to the outside of the dust collecting cover during the cutting operation. The method of claim 1,
The bottom cover is a floor cutter, characterized in that it comprises a rubber material cover. The method of claim 1,
In a state in which one side of the cutting frame is hinged near the rear of the main frame,
The floor cutting machine, characterized in that it is connected between the main frame and the cutting frame by a first hydraulic cylinder so that the other side of the cutting frame moves up and down. 4. The method of claim 3,
As the first hydraulic cylinder is operated by the operator, the other side of the cutting frame moves up and down, and the cutting blade existing near the other side of the cutting frame moves up and down. The method of claim 1,
When auxiliary wheels exist on both sides of the front of the rear wheel, and the auxiliary wheels are moved up and down by the second hydraulic cylinder located at the top,
i) When the auxiliary wheel is located on the upper side, the floor cutter is supported by the two front wheels and the one rear wheel on the floor so that the floor cutter is three-wheeled,
ii) When the auxiliary wheel is located on the lower side, the rear wheel does not contact the floor, and the two front wheels and the two auxiliary wheels support the floor on the floor, so that the floor cutter is driven by four wheels. Characterized by the floor cutting machine. The method of claim 1,
A cross-section of the cutting blade is in a circular shape, and grooves for cutting the floor are provided at regular intervals outside the circular shape.

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