JP5361520B2 - Windrow snow removal device for snow removal vehicle and trailer for windrow snow removal - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a windrow-snow removing device of a snow-removing vehicle and a trailer for windrow snow removal, which can make snow removal work efficient in a predetermined section in an entrance/exist of an expressway and the like, which can restrain snow from remaining after removal, and which can cope with an ample amount of snow to be removed without destructing safety during traveling. <P>SOLUTION: This windrow-snow removing device includes: a back plow 1 which is arranged in the rear of the snow-removing vehicle T, and which has a side plate 11 provided in an L-shape at one side end; a joint section 2 which connects the back plow 1 to the snow-removing vehicle T, and which is equipped with an angling mechanism 21 for adjusting a plow propulsion angle of the back plow 1; a guide plow 3 which is rotatably connected to the other-side lateral end of the back plow 1; and a folding mechanism which is interposed between the guide plow 3 and the back plow 1 so as to enable the operation of folding/unfolding the guide plow 3 with respect the back plow 1. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention is an improvement of a windrow snow removal device in a snow removal vehicle, more specifically, it is possible to improve snow removal work efficiency in a predetermined section such as an entrance / exit of an expressway, an intersection, etc., and the remaining snow removal can also be suppressed, and traveling The present invention relates to a windrow snow removal device for a snow removal vehicle and a windrow snow removal trailer that can handle a sufficient amount of snow removal without impairing the safety inside.

  As is well known, in snow removal work where snow on the road is moved to one side by a snow plow of a running snow removal vehicle, a windrow, which is a bank-like snow accumulation, is unavoidably formed on the side of the vehicle body. It is necessary to remove the windrow with a subsequent snow removal vehicle or the like because it is very dangerous to leave the windrow at the doorway or intersection of the road if it is left unattended.

  However, if the windrow is removed by a subsequent snow removal vehicle, the number of snow removal vehicles and the number of workers are not only required, but work efficiency is also deteriorated, so improvement in terms of cost and work time is required. It was.

  Therefore, conventionally, a side shutter that swings up and down is provided at the side edge of the plow, and the shutter plate that is normally raised during snow removal is lowered in front of the entrance / exit of the expressway, and the snow is removed with this shutter plate and plow. Passing through the doorway etc. while holding, and after passing, the technique of discharging the held snow together to the roadside by returning the shutter plate to the raised state again and opening the plow side was proposed (for example, (See Patent Document 1).

  However, although the technology related to the side shutter mechanism can prevent the occurrence of windrow, there is a risk of blocking the driver's view in the raised state if the front and rear width of the shutter plate is too long. Due to the limited size of the plate, it was not possible to take in the amount of snow necessary to remove the windrow in the predetermined section.

  In addition, the conventional technique shown in <Patent Document 2> also discloses a mechanism for laying the plate sideways on the plow so that the driver's view is not obstructed even when the shutter plate is raised. In the mechanism, it is necessary to swing the plate with a complicated operation without contacting the plow. Therefore, it is difficult to make the shape of the plate exactly fit to the inner surface of the plow. There was a drawback that snow leaked out from the gap and it was easy to leave behind snow removal.

  Similarly to the front plow, when a side shutter mechanism is provided on the center blade at the center lower part of the vehicle body, if the amount of snow carried in front of the blade increases, the snow may come into contact with the lower part of the vehicle body, resulting in a risk of running. Therefore, there has been a problem in terms of safety when it is assumed that it is used at the entrance and exit of a highway with a long distance that needs to carry a large amount of snow (see, for example, Patent Document 3).

  On the other hand, conventionally, as shown in <Patent Document 4>, a technique for providing a snow plow at the rear part of the vehicle body is also known, and when such a back plow is used, when the snow is held by the front plow or the center blade, Although the problem can be solved, the technology according to <Reference 4> is intended only to smooth out and gather the snow left by the rotary snow removal device, so no consideration is given to the function of holding snow. There was a need for improvement.

Japanese Utility Model Publication No. 6-8421 (page 2-3, FIG. 1-6) Japanese Utility Model Publication No. 3-52249 (page 1-5, Fig. 1-3) Japanese Utility Model Publication No. 6-45486 (page 1-5, Fig. 1-4) JP-A-3-72105 (page 2-6, Fig. 1-4)

  The present invention has been made in view of the above-described problems, and the object of the present invention is to improve the efficiency of snow removal work in a predetermined section such as an entrance / exit of an expressway, and to suppress remaining snow removal. Another object of the present invention is to provide a windrow snow removal device and a windrow snow removal trailer for a snow removal vehicle that can handle a sufficient amount of snow removal without impairing safety during traveling.

  Means employed by the present inventor for solving the above-described problems will be described with reference to the accompanying drawings.

That is, the present invention includes a back plow 1 disposed at the rear portion of the snow removal vehicle T and having a side plate 11 provided in an L-shape at one side end; the back plow 1 is connected to the snow removal vehicle T; And a joint part 2 having an angle mechanism 21 for adjusting the plow propulsion angle of the back plow 1; a guide plow 3 rotatably connected to the other side end of the back plow 1; Including a folding mechanism 4 interposed between the guide plow 3 and the back plow 1 and capable of folding and unfolding the guide plow 3 with respect to the back plow 1;
In the snow removing vehicle T that travels, the guide plow 3 is developed to the outside of the vehicle body by the folding mechanism 4 and is held at a predetermined propulsion angle α that faces the vehicle body side. W is crushed and the snow S can be introduced to the front of the back plow 1, while the introduced snow S has a sliding angle in a direction in which the back plow 1 is lowered to the back and the guide plow 3 is lowered. It is characterized in that it can slide down from the back plow 1 to the guide plow 3 and be discharged onto the road shoulder by angling to a predetermined propulsion angle β.

  Incidentally, the “propulsion angle” means an angle formed by a line on the plow parallel to the center line of the vehicle and the plow, and in this specification, the line on the plow and the traveling direction of the vehicle are directed. The angle formed by the left plow is quantified. “Angle” means an operation of changing the propulsion angle by swinging the plow from side to side.

Further, the present invention provides a back plow 1 that is disposed in the rear portion of the snow removal vehicle T in place of the above-described means, and has a side plate 11 provided in an L shape at one side end; And a joint portion 2 having an angle mechanism 21 for adjusting a plow propulsion angle of the back plow 1; and a slidable connection in the longitudinal direction with respect to the other side end portion of the back plow 1 A guide plow 3; and a slide mechanism that is provided at a connecting portion between the guide plow 3 and the back plow 1 and is capable of sliding the guide plow 3 with respect to the back plow 1;
In the snow removal vehicle T that travels, the guide plow 3 is slid to the outside of the vehicle body by the slide mechanism, and the back plow 1 is angled in a direction to raise the guide plow 3 forward, so that the guide plow 3 By holding the plow propulsion angle α facing the front, the windrow snow leve W on the road shoulder can be crushed on the front surface of the guide plow 3 and the snow S can be introduced in front of the back plow 1. For the snow S, the back plow 1 is caused to slide down from the back plow 1 to the guide plow 3 by pulling the back plow 1 in a direction to lower the guide plow 3 and to a predetermined plow propulsion angle β, which is a sliding angle. It is also possible to adopt a technical means for enabling discharge.

  Furthermore, the present invention can employ technical means that the position of the back plow 1 used only in a predetermined section can be appropriately moved up and down by providing the joint portion 2 with the plow lifting mechanism 22.

  Further, the present invention can also employ a technical means in which the joint portion 2 is provided with the expansion / contraction mechanism 23 so that the interval between the back plow 1 used only in a predetermined section and the rear portion of the vehicle body can be appropriately adjusted.

  Further, the present invention includes an automatic control unit 5 that can detect the marker M arranged on the road by the detection sensor 51 and control the angle mechanism 21, the folding mechanism 4, or the slide mechanism of the joint unit 2. The technical means of automating each operation can also be adopted.

  In the present invention, the trailer body 6 connectable to the rear portion of the snow removal vehicle T; and the side plate 11 is provided in an L shape at one side end portion, and the angle ring is provided at the lower portion of the trailer body 6. A back plow 1 connected to a mechanism 61 and capable of adjusting a propulsion angle; a guide plow 3 rotatably connected to a side end portion on the other side of the back plow 1; the guide plow 3 and the back plow 1 It is also possible to adopt a configuration including a folding mechanism 4 that is interposed between the guide plow 3 and the guide plow 3 so that it can be folded and unfolded with respect to the back plow 1.

  Similarly, in the present invention, the trailer body 6 connectable to the rear portion of the snow removal vehicle T; a side plate 11 is provided in an L shape at one side end portion, and is provided at the lower portion of the trailer body 6. A back plow 1 connected to the angle mechanism 61 and adjustable in propulsion angle; a guide plow 3 slidably connected to the other side end of the back plow 1 in the longitudinal direction; and the guide plow 3 and a slide mechanism that is provided at a connecting portion between the back plow 1 and that allows the guide plow 3 to be slid with respect to the back plow 1.

  In the present invention, a back plow is provided on the rear trailer or rear trailer of a snow removal vehicle equipped with a front plow or the like so that it can be angled, and a side plate is provided in an L shape at one side end of the back plow, A guide plow is provided in a folding or sliding manner on the other side end, so that the guide plow is deployed or slid to the outside of the vehicle body before traveling on the entrance / exit of an expressway, etc. If held, the snow bank-like windrow generated on the side of the vehicle body by the front plow etc. can be crushed by the guide plow and the snow can be sent to the back plow side, so there is no windrow left on the expressway. Snow removal can be performed at the doorway.

  Then, the snow sent to the back plow side is stopped by the side plate and can be held in front of the plow, and this held snow passes through the entrance / exit of the expressway and then slides in the direction to lower the guide plow. By angling the back plow until it is created, it can be slid down from the back plow to the guide plow and discharged directly onto the shoulder.

  As described above, according to the present invention, since it is possible to perform both normal snow removal work and windrow recovery work with one snow removal vehicle, it is economical to reduce the number of snow removal vehicles and workers. And it becomes possible to carry out efficiently.

  In the present invention, the back plow is provided with a guide plow that can be expanded and contracted, so that the width of the entire plow can be extended during windrow recovery. Therefore, it is possible to increase the amount of snow that can be carried without sacrificing safety during traveling.

  Further, since the side plate can be provided integrally with the back plow without a gap, there is no fear that the snow held in front of the back plow leaks out from the joint portion, and the remaining snow can be suppressed.

  Therefore, according to the present invention, it is possible to efficiently perform snow removal work even at the entrance and exit of a highway with a long snow removal distance, an intersection with a large road width, and the like, and a windrow snow discharge function excellent in safety of snow removal work. Since the snow removal vehicle provided can be provided, the practical utility value of the present invention is very high.

It is a whole top view showing the snow removal vehicle provided with the windrow snow removal apparatus in Example 1 of this invention. It is an enlarged top view showing the windrow snow draining apparatus in Example 1 of this invention. It is a state explanatory view showing the angle mechanism of the joint part in Example 1 of the present invention. It is state explanatory drawing showing the plow raising / lowering mechanism of the joint part in Example 1 of this invention. It is a state explanatory drawing showing the guide plow and the folding mechanism in Example 1 of the present invention. It is a state explanatory drawing showing the use condition (at the time of normal snow removal) of the apparatus in Example 1 of this invention. It is a state explanatory drawing showing the use condition (at the time of windrow collection) of the device in Example 1 of the present invention. It is a state explanatory drawing showing the other use state (at the time of windrow collection) in Example 1 of the present invention. It is a state explanatory drawing showing the use condition (at the time of snow removal) of the apparatus in Example 1 of this invention. It is state explanatory drawing showing the expansion-contraction mechanism of the joint part in Example 2 of this invention. It is a whole side view showing the snow removal vehicle provided with the windrow snow removal apparatus in Example 3 of this invention. It is a whole top view showing the snow removal vehicle which connected the trailer for windlow snow removal in Example 4 of this invention. It is a whole side view showing the snow removal vehicle which connected the trailer for windlow snow removal in Example 4 of this invention. It is a whole top view showing the snow removal vehicle provided with the windrow snow removal apparatus in the modification of this invention.

“Example 1”
A first embodiment of the present invention will be described below with reference to FIGS. Incidentally, in the figure, what is indicated by reference numeral 1 is a back plow, and what is indicated by reference numeral 2 is a joint portion. What is indicated by reference numeral 3 is a guide plow, and what is indicated by reference numeral 4 is a folding mechanism. Also, what is indicated by a symbol T is a snow removal vehicle, and in this embodiment, a front plow P is provided in front of the vehicle body, and a center blade B is provided in the lower center of the vehicle body.

  First, in the first embodiment, a back plow 1 having a side plate 11 provided in an L shape at one side end is connected to a rear portion of a snowplow vehicle T by a joint portion 2 (FIGS. 1 and 2). 2).

  The angle of the propulsion of the back plow 1 can be adjusted by providing an angle mechanism 21 in the joint 2. More specifically, the back plow 1 is hinged to the joint 2, and this hinge is connected. By expanding and contracting hydraulic cylinders 21b and 21b arranged on the left and right of the portion 21a as a rotation shaft, the back plow 1 can be swung to the left and right as shown in FIGS. 3 (a) and 3 (b). .

  The joint portion 2 is also provided with a plow lifting mechanism 22 for moving the back plow 1 up and down. In the first embodiment, the pivot arm 22a of the joint portion 2 is connected to the back plow 1, By swinging the rotating arm 22a up and down, the back plow 1 can be raised and lowered as shown in FIGS. 4 (a) and 4 (b).

  On the other hand, a guide plow 3 is rotatably connected to the side end of the back plow 1 opposite to the side where the side plate 11 is provided, and a folding mechanism is provided between the guide plow 3 and the back plow 1. 4, the folding mechanism 4 allows the guide plow 3 to be folded and unfolded with respect to the back plow 1 as shown in FIG.

  Next, how to use the back plow 1 and the guide plow 3 will be described. First, during normal snow removal, the back plow 1 is arranged in a state perpendicular to the vehicle center line (propulsion angle 90 °), and the guide plow 1 3 is folded at a substantially right angle with respect to the back plow 1 so as to be along the side of the vehicle body (see FIG. 6).

  Then, before the snow removal vehicle T reaches a predetermined section such as an entrance / exit of an expressway, as shown in FIG. 7, the guide plow 3 is developed to the outside of the vehicle body by the folding mechanism 4 and is directed to a predetermined propulsion angle α ( In this embodiment, the guide plow 3 projecting to the side of the vehicle body collapses the windrow snow bank W discharged from the front plow P and collects the snow S in the back plow 1 To do.

  The propulsion angle α of the guide plow 3 can be freely set in the range of 0 ° to 90 °. However, if the angle is increased too much, the overhang of the guide plow 3 is reduced and the windrow snow bank W There is a possibility that it cannot be recovered to the end, and if the angle is too small, the crushed snow S is difficult to flow to the back plow 1 and increases resistance, and may leak to the outside of the guide plow. Therefore, it is necessary to adjust to an appropriate angle.

  Further, as a method for maintaining the guide plow 3 at a predetermined propulsion angle α, the guide plow 3 is developed until it becomes linear with respect to the back plow 1, and the back plow 1 is predetermined by the angle mechanism 21 of the joint portion 2. Is preferable, and by adopting this method, the introduction of the snow S to the front of the back plow 1 becomes smooth and the load applied to the connecting portion of the back plow 1 and the guide plow 3 is reduced. be able to.

  In addition, if the connection strength between the back plow 1 and the guide plow 3 is sufficiently high, a method in which only the guide plow 3 is developed to a predetermined propulsion angle α by the folding mechanism 4 as shown in FIG.

  Further, the back plow 1 is placed at a high position away from the road surface during normal snow removal that does not need to be used in particular, and the plow lifting mechanism 22 of the joint portion 2 is used for the road surface only when the windrow snow bank W is collected. If it is used after being lowered to the latest position, it is possible to prevent the back plow 1 from being worn at an early stage.

  Further, by providing the guide plow 3 that can be expanded and contracted with respect to the back plow 1, the width of the entire plow can be extended when the windrow snow bank W is collected, so that the amount of snow that can be held can be increased.

  On the other hand, the distance between the rear portion of the vehicle body of the snow removal vehicle T and the back plow 1 is also necessary for snow removal without the snow S held by taking into account the length of the joint portion 2 when making the joint portion 2 and contacting the vehicle body. You can adjust the interval to hold the amount.

  Further, since the side plate 11 is provided integrally with the back plow 1 without a gap, there is no fear that the snow S held in front of the back plow 1 leaks from the joint portion.

  Then, after passing the predetermined section while holding the snow S with the back plow, the back plow 1 is moved in a direction to lower the guide plow 3 backward as shown in FIG. In this embodiment, the snow held in the guide plow 3 is slid down and discharged to the road shoulder by angling to about 135 °.

  The predetermined propulsion angle β, which is the slip angle, can be set in the range of 90 ° to 180 °, but it is necessary to set the angle so that snow does not protrude to the effective width of the road. Since it is considered to change depending on the amount of snow S carried in, the traveling speed of the snow removal vehicle, the snow quality, and the road surface condition, it is necessary to adjust appropriately.

“Example 2”
A second embodiment of the present invention will be described below with reference to FIG. In the second embodiment, an expansion / contraction mechanism 23 is provided in the joint portion 2 so that the distance between the rear body of the snow removal vehicle T and the back plow 1 can be adjusted. Specifically, the expansion / contraction is performed by a link mechanism 23b using a hydraulic cylinder 23a as an actuator. The mechanism 23 is configured.

  As a result, during normal snow removal, the telescopic mechanism 23 of the joint portion 2 is contracted as shown in FIG. 10 (a), and the distance between the rear body of the snow removal vehicle T and the back plow 1 is narrowed so that handling in a narrow place is easy. On the other hand, when the windrow snow bank W is collected, the distance between the rear portion of the vehicle body and the back plow 1 can be widened with the telescopic mechanism 23 extended, and the amount of snow S carried can be increased.

“Example 3”
A third embodiment of the present invention will be described below with reference to FIG. In the figure, what is indicated by reference numeral 5 is an automatic control unit. In the third embodiment, an automatic control unit 5 provided with a detection sensor 51 for detecting a marker M disposed before and after a predetermined section such as an entrance / exit of an expressway is attached. The operation of the angle mechanism 21 and the folding mechanism 4 can be automated (see FIG. 11).

Example 4
A fourth embodiment of the present invention will be described with reference to FIGS. In the figure, the trailer body is designated by reference numeral 6. In the fourth embodiment, a trailer body 6 having an angle mechanism 61 is connected to the rear lower part of the snow removal vehicle T, and the back plow 1 is attached to the angle mechanism 61 so that the propulsion angle can be adjusted. They are connected (see FIGS. 12 and 13).

  By adopting the configuration as described above, it becomes easy to increase the distance between the rear portion of the snow removal vehicle T and the back plow 1, so that more snow S can be held in front of the back plow 1. It becomes.

  The present invention is generally configured as described above. However, the present invention is not limited to the illustrated embodiment, and various modifications can be made within the scope of the claims. For example, The guide plow 3 is slidably connected to the back plow 1 as long as the guide plow 3 is connected to the back plow 1 so that the guide plow 3 can be folded and unfolded. It is also possible to expand and contract by a slide mechanism (not shown).

  When the slide mechanism is employed in the method for expanding and contracting the guide plow 3 as described above, when the guide plow 3 is slid to the outside of the vehicle body by the slide mechanism when the windrow snow bank W is collected, the guide plow 3 is moved forward. It is necessary to angulate the back plow 1 in the upward direction and hold the guide plow 3 at a predetermined plow propulsion angle α facing the vehicle body.

  The slide mechanism can also automate the enlargement / reduction operation by controlling the actuator by the automatic control unit 5, similarly to the folding mechanism 4.

  On the other hand, the apparatus according to the present invention can be provided for a snow removal vehicle T having only the center blade B or a snow removal vehicle T without the front plow P and the center blade B as shown in FIG. For example, the vehicle can be used as a dedicated vehicle for collecting the windrow snow bank W, or can be used as a snowplow capable of performing normal snow removal with the back plow 1.

  Also, the hydraulic cylinders used in the joint portion 2 and the folding mechanism 4 can be appropriately changed to other actuators if necessary, and any of the above belongs to the technical scope of the present invention.

  In recent years, snow removal work on general roads and highways has become indispensable for living in the snowy country, and such snow removal work is usually performed at low traffic hours such as at night or early morning. Nevertheless, if the working time becomes long, there is a possibility that the traffic may be hindered, so it is necessary to finish the work as quickly as possible. In addition, since snow removal work with high public benefit is generally performed using taxes, snow removal workers need to consider cost reduction as much as possible.

  Under such circumstances, the windrow snow removal device and the windrow snow removal trailer of the snow removal vehicle of the present invention are useful for speeding up the snow removal work and reducing the cost and improving the snow removal function. Therefore, the demand in the market is large and its industrial utility value is very high.

1 Back plow
11 Side plate 2 Joint part
21 Angling mechanism
21a Hinge connection
21b Hydraulic cylinder
22 Plow lifting mechanism
22a Rotating arm
23 Telescopic mechanism
23a Hydraulic cylinder
23b Link mechanism 3 Guide plow 4 Folding mechanism
41 Hydraulic cylinder 5 Automatic controller
51 Detection sensor 6 Trailer body
61 Angling mechanism T Snow removal vehicle P Front plow B Center blade W Windlow snow bank S Snow M Marker

Claims (7)

A back plow 1 disposed at the rear portion of the snow removal vehicle T and having a side plate 11 provided in an L shape at one side end; the back plow 1 is connected to the snow removal vehicle T, and the back plow 1 A joint portion 2 having an angle mechanism 21 capable of adjusting the propulsion angle of the guide plow 3; a guide plow 3 rotatably connected to a side end portion on the other side of the back plow 1; the guide plow 3 and the back A folding mechanism 4 interposed between the plows 1 and capable of folding and unfolding the guide plow 3 with respect to the back plow 1.
In the snow removing vehicle T that travels, the guide plow 3 is developed to the outside of the vehicle body by the folding mechanism 4 and is held at a predetermined propulsion angle α that faces the vehicle body side. The snow S is crushed so that the snow S can be introduced to the front of the back plow 1, while the introduced snow S has a sliding angle in a direction in which the back plow 1 lowers the guide plow 3 backward. A windrow snow removal device for a snow removal vehicle characterized in that it can slide down from the back plow 1 to the guide plow 3 to be discharged to the road shoulder by angling to a predetermined propulsion angle β. A back plow 1 disposed at the rear portion of the snow removal vehicle T and having a side plate 11 provided in an L-shape at one side end; the back plow 1 is connected to the snow removal vehicle T, and the back plow 1 A joint part 2 having an angle mechanism 21 for adjusting the plow propulsion angle; a guide plow 3 slidably connected to the other side end of the back plow 1 in a longitudinal direction; and the guide plow 3 and the back plow 1, and includes a slide mechanism capable of sliding the guide plow 3 relative to the back plow 1.
In the snow removing vehicle T that travels, the guide plow 3 is slid to the outside of the vehicle body by the slide mechanism, and the back plow 1 is angled in the direction of raising the guide plow 3 forward, so that the guide plow 3 By maintaining the predetermined propulsion angle α facing, the windrow snow leve W on the road shoulder can be crushed on the front surface of the guide plow 3 and the snow S can be introduced in front of the back plow 1, while the introduced snow S Allows the back plow 1 to slide down from the back plow 1 to the guide plow 3 and to be discharged onto the road shoulder by causing the back plow 1 to angling in a direction to lower the guide plow 3 and to a predetermined propulsion angle β that is a sliding angle. A windrow snow removal device for a snow removal vehicle.   The windrow snow removal device for a snow removal vehicle according to claim 1 or 2, wherein the joint portion (2) includes a plow lifting mechanism (22) for moving the back plow (1) up and down.   The windrow snow removal device for a snow removal vehicle according to any one of claims 1 to 3, wherein the joint portion 2 is provided with an expansion / contraction mechanism 23 so that the distance between the back plow 1 and the rear portion of the vehicle body can be adjusted. .   An automatic control unit 5 that can detect the marker M arranged at a predetermined location by a detection sensor 51 and control the angle mechanism 21, the folding mechanism 4, or the slide mechanism of the joint unit 2 is provided. Item 5. A snow removal device for a snow removal vehicle according to any one of Items 1 to 4. A trailer body 6 connectable to the rear part of the snowplow vehicle T; a side plate 11 is provided in an L-shape at one side end, and is connected to an angling mechanism 61 provided at a lower portion of the trailer body 6. A back plow 1 capable of adjusting the propulsion angle; a guide plow 3 rotatably connected to the other side end portion of the back plow 1; and an interposition between the guide plow 3 and the back plow 1 And a folding mechanism 4 capable of folding and unfolding the guide plow 3 with respect to the back plow 1.
In the snow removing vehicle T that travels, the guide plow 3 is developed to the outside of the vehicle body by the folding mechanism 4 and is held at a predetermined propulsion angle α that faces the vehicle body side. The snow S is crushed so that the snow S can be introduced to the front of the back plow 1, while the introduced snow S has a sliding angle in a direction in which the back plow 1 lowers the guide plow 3 backward. A windrow snow removal trailer for a snow removal vehicle, wherein the trailer slides from the back plow 1 to the guide plow 3 and can be discharged to the road shoulder by angling to a predetermined propulsion angle β. A trailer body 6 connectable to the rear part of the snowplow vehicle T; a side plate 11 is provided in an L-shape at one side end, and is connected to an angling mechanism 61 provided at a lower portion of the trailer body 6. A back plow 1 capable of adjusting the propulsion angle; a guide plow 3 slidably connected to the other side end of the back plow 1 in the longitudinal direction; a connecting portion between the guide plow 3 and the back plow 1 And a slide mechanism capable of sliding the guide plow 3 relative to the back plow 1.
In the snow removing vehicle T that travels, the guide plow 3 is slid to the outside of the vehicle body by the slide mechanism, and the back plow 1 is angled in the direction of raising the guide plow 3 forward, so that the guide plow 3 By maintaining the predetermined propulsion angle α facing, the windrow snow leve W on the road shoulder can be crushed on the front surface of the guide plow 3 and the snow S can be introduced in front of the back plow 1, while the introduced snow S Allows the back plow 1 to slide down from the back plow 1 to the guide plow 3 and to be discharged onto the road shoulder by causing the back plow 1 to angling in a direction to lower the guide plow 3 and to a predetermined propulsion angle β that is a sliding angle. A windrow snow trailer for snow removal vehicles characterized by the above.