KR101337363B1 - Snowplow - Google Patents

Abstract

One embodiment of the present invention provides a snowplow including a snow removal unit, which removes snow piled on the road; a supporting frame supporting the snow removal unit, which has an upper horizontal frame, a lower horizontal frame, and a fixing frame connecting the upper horizontal frame and the lower horizontal frame; a link unit, which is combined to a snow removal link fixing unit equipped in the snow removal unit in one end of the link unit and combined to the supporting frame in the other end; a main frame supporting the supporting frame; and a cylinder unit, which is combined to the main frame in one end of the cylinder unit and combined to the supporting frame in the other end in order to control the rotational and up and down movement of the supporting frame. The link unit is made of an elastic material and the snow removal unit is fixed to the supporting frame.

Description

Snow Blower {SNOWPLOW}

The present invention relates to a snowplow, and more particularly, to a snowplow having a link portion for mitigating the impact applied to the snowplow plate.

Snow accumulated on the road in winter not only impedes the operation of the vehicle, but is also a major factor causing collisions. As a method used for snow removal, the snow is dissolved by spraying calcium chloride, which is a snow removing agent, or a snow plow is mounted on the front of the vehicle to remove snow accumulated on the road.

Here, the method of melting snow accumulated on the road using calcium chloride, a snow removing agent, has a problem that the snow removing agent deteriorates the durability of asphalt, concrete, steel structures, etc. Will be implemented.

These snowplows operate a vehicle in a state where the snowplow is inclined obliquely from the center of the road to send snow accumulated on the road to the edge of the road. At this time, the snow removing plate moves forward in close contact with the bottom surface of the road and removes snow accumulated on the road.

However, if there are obstacles such as protrusions or speed bumps on the road during snow removal, the obstacles on the road may collide with the snow removal plate, and a great impact is applied to the snow removal plate when the obstacle and the snow removal plate collide.

The impact applied to the snow removal plate is transmitted to the support structure for supporting the snow removal plate, so that the durability of the support structure may be degraded or, in some cases, the support structure may be bent. The shock transmitted to the support structure is transmitted to the driver's steering wheel, which impedes safe driving of the snow removal vehicle.

As such, in order to alleviate the impact transmitted from the snow removing plate, the spring may further include a shock absorber between the snow removing plate and the supporting structure, but the shock absorber using the spring may have a permanent deformation when a shock is more than a predetermined amount. There is a problem that can not effectively absorb the torsional shock in various directions of the up, down, left, right.

In addition, the snow removal plate provided in the snow removal machine has a problem in that the entire snow removal plate needs to be replaced even when a part of the snow removal plate is broken.

Technical problem of the present invention for solving the above problems is made to smoothly absorb the torsional impact on the various directions of the upper, lower, left, right applied to the snow removing plate, breakage when a part of the snow removing plate is broken It is to provide a snow plow made to selectively replace only the snow removal plate.

In order to achieve the above technical problem, an embodiment of the present invention snow removal unit for removing the snow accumulated on the road; A support frame having an upper horizontal frame and a lower horizontal frame and a fixed frame connecting the upper horizontal frame and the lower horizontal frame to support the snow removing unit; A link portion having one end coupled to a snow link fixing part provided at the snow removing portion, and the other end coupled to the support frame; A main frame supporting the support frame; And one end coupled to the main frame, the other end coupled to the support frame to control rotation and vertical movement of the support frame, the link portion made of an elastic material, and the snow removing portion to the support frame. Provides a snow plow characterized in that the support is fixed.

In one embodiment of the present invention, the snow removal link fixing portion, the lower snow removal fixing portion provided on the lower side of the snow removing portion; and the upper snow removing fixing portion provided on the upper side of the lower snow removing fixing portion, the link portion, Is coupled to the upper snow removing fixed portion, the other end is an upper link portion coupled to the upper horizontal frame; and one end is coupled to the lower snow removing fixed portion and the other end may include a lower link portion coupled to the lower horizontal frame. .

In one embodiment of the present invention, the upper link portion, the first link member detachable to the upper snow removal fixing portion; A second link member detachable from the upper horizontal frame; And an upper connection link member that bends and connects the first link member and the second link member having different heights, wherein the width of the second link member is wider than the width of the first link member. The first link member may be located above the second link member.

In one embodiment of the present invention, the link portion is further provided with a reinforcing member in the longitudinal direction of the link portion, the link portion may be made of a urethane material.

In one embodiment of the present invention, the snow removal unit, the first snow removing plate for removing snow accumulated on the road; A second snow removing plate adjacent to the first snow removing plate; A third snow removing plate adjacent to the second snow removing plate; And a fourth snow removing plate adjacent to the third snow removing plate and extending in the shape of a cone, wherein the first snow removing plate to the fourth snow removing plate is provided with the snow removing link fixing parts, respectively. The plate can be selectively detached from the support frame.

Referring to the effect of the snow plow according to the present invention described above are as follows.

First, according to the present invention, one end of the link portion is coupled to the snow removal plate, the other end is coupled to the support frame so that the impact transmitted from the snow removal plate can be effectively alleviated by the link portion. That is, the snow removal plate is supported by a link part fixed to the support frame, and a separate steel connecting member or cylinder is not coupled between the snow removal plate and the support frame, and the shock transmitted from the snow removal plate is alleviated at the link part. It can be delivered to the support frame.

Second, according to the present invention, the other end of the link portion is coupled to the lower portion of the support frame, when the snow removal plate is moved upward by the collision with the obstacle, the other end of the link portion to hold the snow removal plate stably. The link part may be made of a urethane material excellent in repetitive strength and vibration absorption.

Third, according to the present invention, the width of the second link member is wider than the width of the first link member to smoothly disperse the impact transmitted from the snow removal plate. That is, in the impact transmitted from the first link member coupled to the snow removal plate is transmitted to the second link member coupled to the support frame, the width of the second link member is wider than the width of the first link member, thereby transmitting to the support frame. The impact that can be mitigated can be alleviated.

Fourth, according to the present invention, in connecting the first link member and the second link member having different heights, the torsional strength of the link portion is increased because it is connected in a bent state. In addition, as the link portion is further provided with a reinforcing member along the length direction of the link portion, the strength of the link portion may be increased.

Fifth, the first to fourth snow removing plate of the snow removing unit is a separate configuration, it is possible to selectively couple to the support frame. Therefore, when the first snow removing plate is broken, the operator can selectively replace only the broken first snow removing plate.

Each of the first to fourth snow removing plates is provided with a snow removing link fixing part, so that an operator may couple the both ends of the link portion to the snow removing link fixing part and the supporting frame, respectively, to fix the snow removing plate to the supporting frame. That is, the first snow removal plate to the fourth snow removal plate has a simple structure that is coupled to the support frame so that an operator can easily separate or combine the first snow removal plate to the fourth snow removal plate from the support frame.

Sixth, in the snow removal section to move the snow accumulated on the road in an oblique state to the edge, the fourth snow removal plate has an extended cone-shaped structure, the snow collected from the first to third snow removal plate to the fourth snow removal plate. Is prevented from flying to the top of the fourth snow removing plate, it is possible to smoothly discharge to the side of the fourth snow removing plate.

It should be understood that the effects of the present invention are not limited to the above effects and include all effects that can be deduced from the detailed description of the present invention or the configuration of the invention described in the claims.

1 is a perspective view of a snow plow according to an embodiment of the present invention.
2 is a plan view of a snow plow according to an embodiment of the present invention.
3 is a side view of a snow plow according to an embodiment of the present invention.
4 is a perspective view of an upper link unit according to an embodiment of the present invention.
5 is a perspective view of a lower link unit according to an embodiment of the present invention.
6 is a perspective view of a link unit according to another embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

Throughout the specification, when a part is referred to as being "connected" to another part, it includes not only "directly connected" but also "indirectly connected" . Also, when an element is referred to as "comprising ", it means that it can include other elements, not excluding other elements unless specifically stated otherwise.

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

1 is a perspective view of a snow plow according to an embodiment of the present invention, Figure 2 is a plan view of a snow plow according to an embodiment of the present invention, Figure 3 is a side view of a snow plow according to an embodiment of the present invention, Figure 4 5 is a perspective view of an upper link unit according to an embodiment of the present invention, and FIG. 5 is a perspective view of a lower link unit according to an embodiment of the present invention.

As shown in FIGS. 1 to 5, the snowplow 1000 runs on the road in a state of being mounted in front of a vehicle (not shown) and pushes snowfall toward the shoulder of the road to quickly remove snow accumulated on the road. That is, the snowplow 1000 places the snow removing plate at an oblique angle to the shoulder at the center of the road and sends snow accumulated on the road to the side of the shoulder which is the edge of the road.

The snowplow 1000 may include a snow removing unit 100, a support frame 200, a link unit 300, a main frame 400, and a cylinder unit 500.

Here, the snow removing unit 100 is configured to remove snow accumulated on the road, and the snow removing unit 100 includes a first snow removing plate 110, a second snow removing plate 120, a third snow removing plate 130, and a fourth snow removal. Plate 140 may be included. The snow removing blade 150 is provided below the first snow removing plate 110 to the fourth snow removing plate 140, and the snow removing blade 150 snows the snow of the road in contact with the bottom surface of the road. The snow blade 150 may be made of a rubber material or a plastic material, and the like, and may be detached from the first snow removing plate 110 to the fourth snow removing plate 140. That is, when the snow blade 150 is worn or broken, the operator can easily replace the snow blade 150.

The scattering prevention plate 160 is provided at an upper portion of the first snow removing plate 110 to the fourth snow removing plate 140, and the snow removing unit 100 performs the snow removing operation. Snow is blown to the top of the snow removal plate 140, and the snow is moved to the edge of the road. The scattering prevention plate 160 is also configured to be detachable from the first snow removing plate 110 to the fourth snow removing plate 140.

One end of the second snow removing plate 120 is adjacent to the first snow removing plate 110, the other end of the second snow removing plate 120 is adjacent to the third snow removing plate 130, and the fourth snow removing plate 140 is It is made to be adjacent to the third snow removing plate (130).

At this time, the fourth snow removing plate 140 is provided at the end side of the snow removing unit 100, and is formed larger than the first snow removing plate 110 to the third snow removing plate 130. That is, the fourth snow removing plate 140 has a cone-shaped extended structure, and the snow moved from the first snow removing plate 110 to the third snow removing plate 130 to the fourth snow removing plate 140. It is smoothly discharged to the edge of the road, it is to prevent the snow gathered to the upper portion of the fourth snow removing plate 140.

The first snow removing plate 110 to the fourth snow removing plate 140 may be selectively coupled to the support frame 200 in a separate configuration. That is, when any one of the first snow removing plate 110 to the fourth snow removing plate 140 is damaged and needs to be replaced, the worker may selectively replace only the corresponding snow removing plate.

As such, unlike the conventional snow removing part 100, each snow removing plate is individually configured so that an impact is transmitted only to the corresponding snow removing plate that is hit when the obstacle and the snow removing plate hit. Therefore, since the impacted snow removal plate does not affect the entire snow removal plate, the snow removal operation may be performed smoothly.

In other words, when an obstacle such as a protrusion or an overspeed bump hits the first snow removing plate 110 on the road during snow removal, the impact generated from the collision with the obstacle is applied only to the first snow removing plate 110, and the second snow removing. Since the impact is not transmitted to the plate 120 to the fourth snow removing plate 140, the snow removing operation may be performed smoothly. In addition, when the first snow removing plate 110 that is hit by an obstacle is damaged, since only the first snow removing plate 110 may be replaced, the cost of replacing parts may be lowered.

On the other hand, the main frame 400 is configured to support the support frame 200, the main frame 400 is to support the support frame 200 in a state mounted on the vehicle. The main frame 400 is mounted on the vehicle to guide the movement of the snowplow 1000.

One end of the cylinder 500 is coupled to the main frame 400, the other end is coupled to the support frame 200 to control left, right rotation and up and down movement of the support frame 200. The cylinder part 500 may include a left rotating cylinder 510, a right rotating cylinder 520, and a vertical moving cylinder 530.

The left rotation cylinder 510 is provided with a left rod 511 so that the support frame 200 may rotate in a left direction with respect to the main frame 400 as the left rod 511 extends and contracts. As such, the right side rotation cylinder 520 is provided with a right rod 521 so that the support frame 200 may be rotated in the right direction with respect to the main frame 400 as the right rod 521 extends and contracts. have. The up and down cylinder 530 is provided with a moving rod 531 so that the support frame 200 may be moved up and down based on the main frame 400 as the moving rod 531 extends and contracts.

As such, the cylinder part 500 controls the left, right, up, and down movement of the support frame 200.

On the other hand, the support frame 200 is configured to support the snow removing unit 100, the support frame 200 may include an upper horizontal frame 210, a lower horizontal frame 220 and a fixed frame 230.

The upper horizontal frame 210 has a length corresponding to the width of the vehicle and stably supports the snow removal unit 100. The lower horizontal frame 220 is provided below the upper horizontal frame 210 and forms a pair with the upper horizontal frame 210 to stably support the snow removing part 100. In addition, the upper horizontal frame 210 and the lower horizontal frame 220 are fixed while maintaining a predetermined interval by the fixed frame 230.

An upper link fixing hole 211 is formed on a lower surface of the upper horizontal frame 210, and a lower link fixing hole 221 is formed on a lower surface of the lower horizontal frame 220 so that the other end of the link part 300 is coupled. The member 390 may be selectively coupled to the support frame 200. That is, the coupling member 390 is inserted through the second hole 315 formed at the other end of the upper link portion 310 and then coupled with the upper link fixing hole 211 to form the other end of the upper link portion 310. It is fixed to the upper horizontal frame 210. In addition, the coupling member 390 is inserted through the fourth hole 335 formed at the other end of the lower link portion 330 and then coupled with the lower link fixing hole 221 to form the other end portion of the lower link portion 330. It is fixed to the lower horizontal frame 220.

On the other hand, the link portion 300 is coupled to the snow removal unit 100 at one end in a state where the other end is coupled to the support frame 200, thereby stably supporting the snow removal unit 100 from the support frame 200. The link unit 300 is made of an elastic material is made to enable a certain deformation. That is, when the snow removing unit 100 is moved up, down, left and right, a predetermined length of deformation is possible.

The link unit 300 may be made of urethane material. The urethane material is suitable for being used as the link part 300 because of excellent mechanical strength and repetitive strength, and particularly excellent vibration absorption. Here, the material of the link unit 300 is not necessarily limited to the urethane material, and of course, any elastic material having excellent vibration absorption may be used.

The link unit 300 has a predetermined strength or more capable of supporting the snow removing unit 100 and is configured to smoothly absorb the impact transmitted from the snow removing unit 100 while supporting the snow removing unit 100. That is, the link unit 300 is a connection member for transmitting the relaxed impact force to the support frame 200 by alleviating the impact force transmitted from the snow removing unit 100, thereby preventing the durability of the support frame 200 from being lowered. . In addition, the link unit 300 may lower the impact force transmitted to the steering wheel of the driver to reduce the impact force transmitted from the snow removing unit 100 and then deliver it to the support frame 200. Therefore, the driver can drive safely during snow removal.

One end of the link unit 300 is coupled to the snow removing link fixing unit 170 provided in the snow removing unit 100, and the other end of the link unit 300 is coupled to the support frame 200.

The snow removing link fixing unit 170 may include an upper snow removing fixing unit 171 and a lower snow removing fixing unit 175, and the upper snow removing fixing unit 171 is provided above the lower snow removing fixing unit 175.

An upper fixing hole 172 is formed in the upper snow removing fixing part 171, and the coupling member 390 is connected to the upper linking part 310 while one end of the upper linking part 310 is inserted into the upper snow removing fixing part 171. ) And the upper snow removal fixing portion 171 is combined. That is, the coupling member 390 is inserted through the first hole 314 and the upper fixing hole 172 formed in the upper link portion 310 so that one end of the upper link portion 310 is in the upper snow removing fixing portion 171. It will be fixed.

A lower fixing hole 176 is formed in the lower snow removing part 175, and the coupling member 390 is connected to the lower link part 330 while one end of the lower link part 330 is inserted into the lower snow removing part 175. ) And the bottom snow fixing part 175 is combined. That is, the coupling member 390 is inserted through the third hole 334 and the lower fixing hole 176 formed in the lower link portion 330 so that one end of the lower link portion 330 is connected to the lower snow removing fixing portion 175. It will be fixed.

As such, the link unit 300 may be detachably attached to the snow removing unit 100 and the support frame 200, and the snow removing unit 100 may be selectively detached from the support frame 200.

Referring to FIG. 4, the upper link unit 310 may include a first link member 311, a second link member 312, and an upper connection link member 313. A first hole 314 is formed in the first link member 311, and the first link member 311 is coupled to the upper snow removing fixing part 171.

A second hole 315 is formed in the second link member 312, and the second link member 312 is coupled to the upper horizontal frame 210. At this time, the second link member 312 is supported and fixed to the lower surface of the upper horizontal frame 210 to securely hold the snow removing part 100 even when the snow removing part 100 collides with the protrusion of the road. .

Here, the first link member 311 and the second link member 312 are not positioned on the same horizontal line and are connected by the upper connection link member 313 while maintaining different heights. That is, while the first link member 311 and the second link member 312 maintain different heights, the first link member 311 is coupled to the upper snow removing fixing part 171, and the second link member ( 312 is coupled to the upper horizontal frame 210, the upper connection link member 313 during the vertical movement of the snow removal unit 100 to alleviate the impact of the snow removal plate is moved up and down and at the same time stable snow removal unit 100 Support is fixed. In this case, the first link member 311 is positioned above the second link member 312.

The upper link member 313 is bent, one end is connected to the first link member 311, the other end is connected to the second link member 312. The bent upper connection link member 313 may maintain a predetermined or more support strength even when the snow removing part 100 moves up, down, left, and right with respect to the support frame 200. In addition, as the upper link link member 313 is bent, the torsional strength is strong, and when the twist occurs in the upper link link member 313, the upper link link member 313 may be prevented from being deformed or broken.

In addition, both side surfaces of the upper link member 313 are symmetrically inclined and are connected to the first link member 311 and the second link member 312 having different widths, respectively. Here, the width D2 of the second link member 312 is wider than the width D1 of the first link member 311.

The first link member 311 is configured to be coupled to the snow removing unit 100, and when a predetermined or less impact is transmitted from the snow removing unit 100 to the first link member 311, the first link member 311 may be It will absorb the shock transmitted from the snow removal unit 100 by itself.

On the other hand, when the first link member 311 is transmitted to the first link member 311 by a predetermined or more impact from the snow removing unit 100, the first link member 311 is transmitted to the first link member 311. The impact force is transmitted to the upper link member 313 and the second link member 312. At this time, the first link member 311 transmits an impact force to the upper link link member 313 and the second link member 312 formed wider than the first link member 311. That is, in the impact force is transmitted from the first link member 311 to the second link member 312, the second link member 312 is formed to be wider than the first link member 311, the second link member The impact force transmitted to 312 may lower the impact force transmitted to the upper horizontal frame 210 by dispersing the force. Therefore, the upper link unit 310 is to prevent the durability of the support frame 200 is lowered by the impact force transmitted from the snow removing unit 100.

Referring to FIG. 5, the lower link unit 330 may include a third link member 331, a fourth link member 332, and a lower connection link member 333. Here, the third link member 331 has the same configuration as the first link member 311, and the fourth link member 332 has the same configuration as the second link member 312. However, the lower connection link member 333 has only a difference in length from the upper connection link member 313. That is, the lower link portion 330 is different only in the length of the upper link portion 310 and the link link member is made of the same configuration.

A third hole 334 is formed in the third link member 331, and a fourth hole 335 is formed in the fourth link member 332, and the third link member 331 is a lower snow removing fixing part 175. The fourth link member 332 is fixed to the lower surface of the lower horizontal frame 220. Here, the fourth link member 332 is supported and fixed to the lower surface of the lower horizontal frame 220, so that the snow removing part 100 stably holds the snow removing part 100 even when the snow removing part 100 collides with the protrusion of the road. do.

As such, the lower link unit 330 is configured to stably support the snow removing unit 100 like the upper link unit 310, and a detailed description of the lower link unit 330 will be omitted.

The upper link part 310 and the lower link part 330 are respectively coupled to the snow removing part 100 and the support frame 200 to support the snow removing part 100 and at the same time the impact force transmitted from the snow removing part 100. Relaxed.

For example, the upper link portion 310 and the lower link portion 330 are respectively coupled to the first snow removing plate 110 and the support frame 200 so that the first snow removing plate 110 is connected to the supporting frame 200. It may be supported. In addition, like the first snow removing plate 110, the second snow removing plate 120 is coupled to the upper link portion 310 and the lower link portion 330, respectively, so that the second snow removing plate 120 is supported by the support frame 200. May be supported). In this way, the upper link portion 310 and the lower link portion 330 are similarly coupled to the third snow removing plate 130 and the fourth snow removing plate 140 so that the third snow removing plate 130 and the fourth snow removing plate ( 140 may be supported by the support frame 200. At this time, the number of the upper link portion 310 and the lower link portion 330 coupled to the snow removal plate and the support frame 200 may vary depending on the length or size of the snow removal plate.

As such, the first snow removing plate 110 to the fourth snow removing plate 140 may be individually coupled to the support frame 200. Therefore, when the first snow removing plate 110 is broken, the operator can selectively replace only the broken first snow removing plate 110. In addition, since the link unit 300 is detachable to the snow removing unit 100 and the support frame 200, when the link unit 300 is broken, an operator can easily replace the link unit 300.

Here, the first snow removal plate 110 to the fourth snow removal plate 140 is configured to be selectively coupled to the support frame 200 by the link unit 300, the operator easily the first snow removal plate 110 to the first 4 snow removal plate 140 can be coupled to the support frame 200, the replacement operation is easy.

FIG. 6 is a perspective view of a link unit according to another embodiment of the present invention. Members referred to by the same reference numerals as the members illustrated in FIGS. 1 to 5 have the same configuration and function, and for each of them. Detailed description will be omitted.

As shown in FIG. 6, the link part 300 ′ is further provided with a reinforcing member 301 to increase the strength of the link part 300 ′. The reinforcing member 301 is provided along the longitudinal direction of the link portion 300 'to increase the strength of the link portion 300', the reinforcing member 301 may be made of a plurality of maintaining a constant interval Of course.

Here, the shape of the reinforcing member 301 may be made in a straight shape along the longitudinal direction of the link portion 300 ', the bent shape of the' ∧ 'is continuously connected to increase the torsional strength of the link portion 300' Of course, the shape and number of the reinforcing member 301 may be variously made.

As such, the strength of the link portion 300 'is increased in the reinforcing member 301, thereby preventing the link portion 300' from being broken or broken.

The foregoing description of the present invention is intended for illustration, and it will be understood by those skilled in the art that the present invention may be easily modified in other specific forms without changing the technical spirit or essential features of the present invention. will be. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

The scope of the present invention is defined by the appended claims, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included within the scope of the present invention.

100: snow removal unit 170: snow removal link fixing portion
200: support frame 300: link portion
310: upper link part 311: first link member
312: second link member 313: upper connecting link member
314: first hole 315: second hole
330: lower link portion 390: coupling member
400: main frame 500: cylinder portion
1000: snow plow

Claims (5)

A snow removal unit for removing snow accumulated on the road;
A support frame having an upper horizontal frame and a lower horizontal frame and a fixed frame connecting the upper horizontal frame and the lower horizontal frame to support the snow removing unit;
A link portion having one end coupled to a snow link fixing part provided at the snow removing portion, and the other end coupled to the support frame;
A main frame supporting the support frame; And
One end is coupled to the main frame, the other end is coupled to the support frame and includes a cylinder portion for controlling the rotation and vertical movement of the support frame, the link portion is made of an elastic material to support and fix the snow removing portion to the support frame ,
The snow removing link fixing portion is formed to have a lower snow removing portion provided on the lower side of the snow removing portion; and an upper snow removing fixing portion provided on the upper side of the lower snow removing fixing portion,
The link part, one end is coupled to the upper snow removing fixed portion, the other end is coupled to the upper horizontal frame; and one end is coupled to the lower snow removing fixed portion and the other end is coupled to the lower horizontal frame To have wealth,
The upper link unit may include a first link member detachable from the upper snow removing fixing unit; A second link member detachable from the upper horizontal frame; And an upper connection link member that bends and connects the first link member and the second link member having different heights, wherein the width of the second link member is wider than the width of the first link member. The first snow removal device, characterized in that located on the upper side than the second link member. delete delete The method of claim 1,
The link unit is provided with a reinforcing member further along the longitudinal direction of the link unit, the link unit snowplow, characterized in that made of urethane material. The image forming apparatus according to claim 1,
A first snow removing plate for removing snow accumulated on the road;
A second snow removing plate adjacent to the first snow removing plate;
A third snow removing plate adjacent to the second snow removing plate; And
A fourth snow removing plate adjacent to the third snow removing plate and extending in a cone shape,
The first snow removing plate to the fourth snow removing plate is provided with each of the snow removing link fixing portion, wherein the first snow removing plate to the fourth snow removing plate is selectively detachable to the support frame.

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