JPH0242733Y2 - - Google Patents

Description

[Detailed explanation of the invention] [Industrial application field] The present invention improves snow plows, specifically, the plow can be expanded in width during snow removal work.
This invention relates to an end plow folding mechanism for a snow plow that can reduce the plow width by folding the end when forwarding or passing through a narrow road (for example, on a narrow bridge).

[Conventional technology and technical issues to be solved]

Conventionally, in snowplows that use snow plows, in order to improve work efficiency during snow removal work,
Since the overall width of the snow plow is larger than the width of the snowplow main body, the ends of the snowplow protrude from both sides of the snowplow. by the way,
Although such a wide snow plow improves snow removal efficiency from a work efficiency standpoint, it also makes it difficult to perform high-speed forwarding from the standpoint of driving the snowplow during forwarding, and the wide plow also reduces the risk of contact. It is easy to cause collisions and is a problem in terms of traffic safety.

The present invention was developed in view of the above-mentioned drawbacks of conventional wide snow plows.The present invention aims to fold the end plow, which is hinged to the end of the plow body, easily and smoothly using a hydraulic cylinder. To provide a snow plow end folding mechanism that can be used.

[Means adopted to solve the problem]

The means adopted by the present inventor to solve the above technical problem will be explained with reference to the attached drawings.
It is as follows.

That is, in the present invention, an end plow 2 is pivotally supported at the side end of a plow body 1 via a hinge 7 so as to be foldable rearward, and this end plow 2 is supported by a hydraulically operated cylinder 1.
In constructing a snow plow that can be folded and expanded by extending and retracting the plow body 1, one end of the push-pull link 9 is hingedly connected to the back surface of the end plow 2, and a bell crank is attached to the back surface of the plow body 1. The outer end of the bell crank 10 is connected to the push/pull link 9 as a working end 10b, and the other end of the bell crank 10 is a force end 10a. By employing a mechanical means of connecting the hydraulic cylinder 11 to the hydraulic cylinder 1 as
The gist lies in that the end plow 2 is folded or placed flush with the plow body 1 in conjunction with the extension/retraction movement of the plow.

〔Example〕

Hereinafter, preferred embodiments of the present invention will be described based on the accompanying drawings.

FIG. 1 is a side view showing the state of the snow plow during operation. The plows 2, 2 are hingedly connected, and these end plows 2, 2 project to both sides of the chassis body A.

On the other hand, FIG. 2 is a side view showing the state of the snow plow during transport, with the snow plow main body 1 being lifted up from the ground and the end plows 2, 2 being folded inward behind the plow.

For details, how to lift the snow plow body 1,
Do it as follows.

First, the plunger of the hydraulic cylinder 3 disposed above the plow body 1 is extended to remove the plow body 1.
By pushing down the upper end bracket 4 of the plow body 1, the entire plow body 1 is turned over about a pivot (not shown in the figure) that pivots the chassis A and the plow body 1. In this embodiment, the plow body 1 is suspended from the chassis A via the parallel link mechanism 5, so when the piston of the hydraulic cylinder 6 hanging from the chassis A is retracted, the plow body 1 is suspended from the parallel link mechanism 5. 5 and is pulled upwards and held above the ground.

Next, the connection mechanism and folding mechanism between the plow body 1 and the end plows 2, 2 are shown in FIGS. 3 to 5.

Therefore, FIGS. 3 and 4 are plane views showing a state in which the end plow 2, which is configured separately from the plow body 1, is hinged to the plow body 1 flush with the plow body 1 (during normal operation). Figure and back view,
On the other hand, FIG. 5 is a plan view showing a state in which the end plow 2 is folded at a substantially right angle to the plow body 1 (when being transported).

As shown in the figure, the end plow 2 is pivotally supported by a hinge 7 to the plow body 1 so that it can be folded toward the rear and inside, and is also pivoted to a bracket 8 disposed on the back side of the end plow 2. It is connected to the operating end 10b of a bell crank 10, which is swingably supported on the back surface of the plow body 1, via a push-pull link 9 attached thereto.

The bell crank 10 is bent in a ``H'' shape, and a bent portion 10c is pivotally supported by a hinge bracket 71 on the back surface of the plow body 1. Therefore, the power end 10a of the bell crank 10 located on the plow body 1 side has a bracket 13 attached to the plow body 1.
The tip of a plunger 12 of a hydraulic cylinder 11 which is swingably mounted is connected to the plunger 12 via the hydraulic cylinder 11.

Therefore, when the hydraulic cylinder 11 is driven to extend the plunger 12, the bell crank 1
0 rotates clockwise around the bending portion 10c, the rotational force acts on the end plow 2 via the push/pull link 9, causing the end plow 2 to rotate, and the rear of the plow body 1 It will be folded inward (see Figure 5).

Conversely, the plunger 12 of the hydraulically actuated cylinder 11
When the bell crank 10 is retracted and contracted, the bell crank 10 rotates counterclockwise, and the end plow 2 is rotated forward about the hinge 7 via the push/pull link 9 to be flush with the plow body 1. They will stand in parallel. Since this state is stably maintained unless the hydraulic cylinder 11 is driven, the end plow 2 will not be folded up unexpectedly during snow removal, and snow removal work can be performed normally.

Although the mechanism of this embodiment is generally constructed as described above, the present invention is by no means limited to the above-mentioned embodiment, and various design changes are possible within the scope of the "claims for utility model registration." be. For example, the pulling mechanism of the plow body is not necessarily essential, and the desired purpose can be sufficiently achieved by having only the end folding mechanism.

[Effects of this invention]

As is clear from the above explanation, in the above embodiment, when the snow plow is pulled up, the end plows protruding from both sides of the vehicle body can be folded and stored inside the vehicle body, so the operational efficiency during forwarding is equivalent to that of a normal vehicle. This makes it possible to drive at high speeds,
Also, like regular trucks, there is less risk of collision or collision, and it is possible to drive safely on roads.

Furthermore, the ``plow end folding mechanism'' of the present invention is not only used for the above-mentioned forwarding, but can also be used during snow removal work. In that case, it would be easy to provide suitable switching means to enable selective folding of either end plow. Therefore, the appropriate plow width can be selected by considering the snow removal topography and snow removal area.
This is extremely meaningful in terms of work.

Therefore, according to the present invention, it is possible not only to improve vehicle driving operability and traffic safety when transporting the snow plow, but also to adjust the overall width of the snow plow according to the topography and snow conditions of the work area. , workability can also be further improved.

[Brief explanation of drawings]

Fig. 1 is a side view showing the overall structure of the snow plow equipped with the mechanism according to the present invention during operation, Fig. 2 is a side view showing the overall structure during forwarding, and Fig. 3 is the end plow according to the present invention. A plan view of the folding mechanism, FIG. 4 is a rear view thereof, and FIG. 5 is a plan view of the folded end plow. 1... Plow main body, 2... End plow, 7...
Hinge, 9... Push-pull link, 10... Bell crank, 10a... Force end (of bell crank), 10
b... Working end (of bell crank), 10c...
Bend part (of bell crank), 11...hydraulic actuating cylinder.

Claims (1)

[Scope of utility model registration request] The end plow 2 is attached to the side end of the plow body 1 with a hinge 7
In the snow plow, the end plow 2 is folded and expanded by extending and retracting the hydraulic cylinder 11, and the end plow 2 is pivoted so that it can be folded rearward through a push-pull link on the back surface of the end plow 2. One end of the bell crank 10 is hingedly connected, while a bent portion 10c of a bell crank 10 is swingably supported on the back surface of the plow body 1, and the outer end of the bell crank 10 is used as the working end 10b to connect the push/pull link. 9, and by connecting the other end of the bell crank 10 to the hydraulic cylinder 11 as the power end 10a, the end plow 2 can be folded or the plow main body 1 can be folded in conjunction with the extension/retraction movement of the hydraulic cylinder 10. An end folding mechanism for a snow plow, characterized in that the end folding mechanism is arranged so that the snow plow is placed flush with the snow plow.