JPH027935Y2 - - Google Patents

Description

[Detailed Description of the Invention] A. Purpose of the Invention (Field of Industrial Application) The present invention relates to a snow plow for treating snow embankments in median strips.

In areas with heavy snowfall, the snow left on the side of the road gradually increases in height every time the snow is removed, but on the contrary, the snow melts near the contact surface, so a mushroom-shaped snow eaves is generally formed with the upper part extending toward the road, and this grows. This phenomenon occurs when the umbrella part falls onto the road and the width of the road where the snow has been removed becomes narrower.Especially in today's era of developed expressways, this phenomenon occurs on the side of the median strip and falls onto the passing lane. Snow can cause accidents. The present invention is used for snow embankment treatment to prevent such accidents.

(Conventional technology and its problems) Conventionally, the up and down lines of the overtaking lane are first restricted to traffic for disposal, and then the snow on the snow embankment is dropped onto the road by hand or with a backhoe, and then the following It requires three steps, including discharging it with a snowplow.
This has become a very tedious task. The present invention aims to solve such problems. In this case, it is possible to perform appropriate snow bank treatment according to the height of the snow bank and snow quality, and to avoid collision of the snow bank processing plow with obstacles such as signs in the median strip. is necessary.

B. Composition of the invention (means for solving problems) The invention consists of a blade attached to the front of a snowplow, a blade that is pivoted to one of the separate fulcrums on the back of the blade, A lever that can swing vertically by a lever swinging cylinder installed between one fulcrum of the lever, and a guide body formed on the surface of the lever, which is pivoted to the free end of the lever at one of the fulcrums on the back side, and the other A guide parallel to the blade whose snow cutting angle can be varied by a tilting cylinder installed between the fulcrum of the fulcrum and the remaining fulcrum of the blade, and a slider on the back of itself fit into the guide body and become integral with this guide. It is characterized by having a snow embankment treatment plow which is tiltable and slidable parallel to the above-mentioned blade by means of a cylinder provided on the guide.

(Operation) The snowplow is run with the snow bank processing plow extending over the edge extension of the upper blade whose height and cutting angle have been adjusted, and the umbrella portion of the snow bank is cut by the snow bank processing plow. Snow that has been cut and fallen onto the road is removed by a blade. median strip sign,
If there is an obstacle such as a utility pole on the side of the road, the snowplow can move with the snowbank treatment plow retracted inward from the width of the blade.

(Example) In the following, the same numbers refer to the same parts.

1 is a snowplow, and 10 is a blade attached to the front part thereof. Brackets 12, 13 and 14 are formed on the back surface of the blade body 11.

Reference numeral 20 denotes a lever, which has a link 21 pivotally attached to its middle part, and one end of the lever 20 is connected to the bracket 1.
It is supported by 4.

Reference numeral 50 denotes a cylinder whose bottom part is pivotally supported by the bracket 13, and its rod tip is pivotally connected to the free end of the link 21. This causes the lever 20 to move towards the blade 1.
0 by a cylinder 50 so as to be swingable.

Reference numeral 30 denotes a guide parallel to the blade 10. A guide body 31 is formed on the surface of the base 32, and brackets 33 and 34 are formed on the back surface of the base 32. The bracket 33 is attached to the pin 37 at the fulcrum 35.
is pivotally connected to the free end of the lever 20.

The bottom of the cylinder 60 is pivotally supported by the bracket 12, and the tip of the rod is attached to the bracket 3 by the pin 38 at a fulcrum 36 which is not on the axis of the pin 37.
It is pivoted to 4. As a result, the guide 30 is swingably supported by the cylinder 60 on the lever 20.

Reference numeral 40 denotes a snow embankment processing plow, and a slider 41 formed on the back of the plow is slidably fitted into the guide body 31. 70 is a stroke doubling mechanism. 7
Reference numeral 1 denotes a cylinder fixed to a base 32, and a chain wheel 73 is attached to the tip of the rod via a clevis 72. 74 is a chain fixed to the base 32, 75 is a chain fixed to the slider 41 in parallel thereto, and the chain wheel 73 meshes with the chains 74 and 75 to roll. This stroke doubling mechanism 70
Accordingly, as the cylinder 71 expands and contracts, the processing plow 40 slides twice the stroke of the cylinder 71, and can extend significantly upstream of the blade 10 (to the left in FIG. 1). As described above, the processing plow 40 is slidably supported by the guide 30 by the cylinder 71. In place of the chain wheel and chain, a pinion 76 and rack 77 may be used as shown in FIG.

Now, by expanding and contracting the cylinder 50,
The height of the processing plow 40 is set according to the height of the snow embankment N. Furthermore, by expanding and contracting the cylinder 60, the elevation angle of the processing plow 40, that is, the snow cutting angle, is set according to the snow quality.

Next, by shortening the cylinder 71, the treatment plow 40 is positioned on the snow embankment N as shown in FIG. Here, the snow plow 1 is run to cut the snow embankment, and the snow T that has fallen onto the road is removed by the blade 1.
0, it is excluded to the right in FIG. If there is an obstacle such as a sign on a median strip, the cylinder 71 is extended and the treatment plow 40 is slid to the right in FIG. 1 and retracted within the width of the blade 10.

When not performing snow embankment processing work, use the processing plow 4.
0 is retracted within the width of the blade 10, the cylinders 50 and 60 are shortened. Then, as shown in Fig. 3, the processing plow 40 is placed on the curved line of the blade 10, so if it is driven on a snow-covered road in this state, it will smooth the flow of snow, prevent snow from flying, and perform normal operations. Can be used as a snow plow.

C. Effects of the invention According to the invention, snow embankment treatment can be done in one step, and the snow embankment treatment plow can be retracted within the width of the blade, so collisions with obstacles can be easily avoided. Furthermore, since the height and cutting angle of the snow bank treatment plow can be freely adjusted, optimal snow bank treatment can be performed according to the height of the snow bank and snow quality, and the structure is simple and inexpensive. There are various effects such as obtaining.

[Brief explanation of drawings]

Figure 1 is a schematic front view showing the snow embankment treatment situation, Figure 2
The figure is a plan view, and Figures 3 and 4 are A-A in Figure 2.
The height and cutting angle of the processing plow have been changed from the line sectional view, Figure 5 is a partially cutaway BB line sectional view of Figure 4 to show the stroke doubling mechanism, and Figures 6 and 7 are It is the same schematic diagram. 1... Snowplow, 10... Blade, 11... Blade body, 12, 13, 14... Bracket,
20... Lever, 21... Link, 30... Guide, 31... Guide body, 32... Base, 3
3, 34... Bracket, 35, 36... Fulcrum,
37, 38...pin, 40...processing plow, 41
...Slider, 50, 60...Cylinder, 70
... Stroke doubling mechanism, 71 ... Cylinder, 7
2... Clevis, 73... Chain wheel, 7
4, 75...Chain, 76...Pinion, 77
...Latsuk.

Claims (1)

[Scope of utility model registration request] A blade attached to the front of the snowplow and a lever swinging cylinder that is pivoted to one of the fulcrums on the back of the blade and installed between the middle part of the blade and the other fulcrum are used to move the snowplow vertically. A swingable lever and a tilting cylinder having a guide body formed on its surface, pivoted to the free end of the lever at one of the fulcrums on the back side, and installed between the other fulcrum and the remaining fulcrum of the blade. A guide that is parallel to the mentioned blade and has a variable snow cutting angle, and a slider on the back side of itself fits into the guide body and can be tilted together with this guide, and a cylinder provided on this guide allows the guide to be parallel to the mentioned blade. 1. A median strip snow bank processing snow plow comprising a freely sliding snow bank processing plow.