JPH0738352Y2 - Cutting edge for rough surface - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cutting blade that cuts a rough surface to be mounted on a road leveling blade or plow mounted on a snow removing machine.

[0002]

2. Description of the Related Art Heretofore, in this type, the following has been done. For example, the actual Kaihei 3-2141
No. 9 discloses a tire and a snow and ice road surface by cutting the snow and ice surface to a rough surface with a cutting edge that has unevenness on the cutting edge and cuts to a rough surface with different thicknesses of the convex and concave portions. It is configured to improve the friction force of. Therefore,
In forming the unevenness on the cutting edge, the base material is cut or cast to manufacture, and both are made of a single material.

[0003]

The problems described in the prior art have the following problems. Since the change in wear of each uneven portion of the cutting edge depends only on the thickness of the member, there is a limit to the difference in wear. Furthermore, the problem of cost is a major issue in forming irregularities by cutting the base material or manufacturing by casting.

The present application has been made in view of the above problems of the prior art, and an object of the present application is to provide a device capable of solving the above problems.

[0005]

[Means for Solving the Problems] In order to achieve the above object, the present invention is as follows. That is, in the case of the present application, a vertical bar-shaped convex portion forming material 1B made of the same or different material as the base material of the cutting blade is welded to the front surface of the cutting blade 1A, which is the advancing direction side of the base material. The concave portions 1C and the convex portions 1D are alternately formed by adhering in a parallel state by the method, and the thickness 1C1 of the concave portion 1C is
It is a cutting edge that cuts into a rough surface configured to be thinner than the thickness 1D1 of the convex portion 1D . In this case, the shape of the convex portion forming material 1B is the round bar body 1B1, the prismatic body 1B2, the trapezoid body 1B.
3. Other shapes are possible.

[0006]

EXAMPLES Examples will be described with reference to the drawings. 1
Is a cutting edge (hereinafter referred to as cutting edge 1) for cutting a rough surface of the present invention. Reference numeral 2 denotes a snow removal blade equipped on the self-propelled vehicle, and the cutting edge 1 is detachably attached to the lower side thereof. As a result, if the lower part of the cutting edge 1 is worn, it will be replaced.

Therefore, the structure of the cutting edge 1 will be described. 1
A is a base material of the cutting blade, and a vertical bar-shaped convex portion forming material 1B made of the same or different material as the base material of the cutting blade is provided on the front surface which is the advancing direction side of the base material of the cutting blade. The concave portions 1C and the convex portions 1D are alternately formed adjacent to each other by fixing them in a parallel state by a method such as welding.

That is, the portion where the convex portion forming material 1B is attached becomes the convex portion 1D, and the portion of the cutting blade only on the base material becomes the concave portion 1C. And, of course, the thickness 1C1 of the recess 1C
Is thinner than the thickness 1D1 of the convex portion 1D. In this case, the shape of the protrusion forming material 1B may be a round bar 1B1, a prism 1B2, or a trapezoid 1B3. Still other shapes are possible.

Then, the shape of the convex portion forming material 1B is appropriately selected so that cutting suitable for the road surface condition can be performed. The material of the convex portion is fixed to the base material of the cutting blade by a method such as welding, and the material, shape and material of the convex portion can be arbitrarily selected.

In the present invention, the cutting edge according to JIS has the property of cutting the road surface flat (mirror surface), whereas the cutting surface (road surface) is roughly cut to improve the friction coefficient with the automobile tire. It was done like this. The following dimensions were suitable. The thickness 1C1 of the concave portion 1C is 9 mm, the thickness 1D1 of the convex portion 1D is 25 mm, the width 1C2 of the concave portion 1C is 14 mm, and the width 1D2 of the convex portion 1D is 1.
6 mm, the height 1D3 of the convex portion 1D is 75 mm.

The present invention operates as follows. FIG. 1 is a schematic view of a snow removal blade mounted on a self-propelled vehicle. As the self-propelled vehicle moves, the blade moves in the direction A to cut the snow and ice B and secure a regulated cutting surface C. In this case, the wear of the cutting edge due to cutting is fast in the concave portion having a small thickness and slow in the convex portion having a large thickness, so that the unevenness of the cutting edge is always secured.

[0012]

Since the present invention is constructed as described above, it has the following effects. Since the member shape of the convex portion can be arbitrarily selected and the same material as the base material can be arbitrarily selected and fixed, a cutting blade with a structure suitable for the machinability and road surface conditions can be easily and surely Obtainable.

Since the snow and ice road surface is always cut to have a certain range of unevenness due to the unevenness of the cutting edge, it is possible to secure a snow and ice surface having stable frictional resistance. That is, since the edge of the blade has irregularities, it is better to bite into the snow and ice road surface, and the cutting force is improved.

The snow and ice surface is compressed and destroyed by the pressure of pressing the cutting edge against the road surface (using the weight of the vehicle). Move the self-propelled vehicle in the same state (use the traction force of the self-propelled vehicle). As a result, 1. In compressive failure, the smaller the contact area with the road surface, the greater the compression pressure per unit area. A. The maximum compression fracture occurs when only the convex portions are in contact, and the mirror surface can be adjusted to a rough surface. B: In the state where the concave portion is also in contact, the convex portion which is in contact first precedes and the snow and ice surface is destroyed by the wedge effect. 2. The traction force is increased because the tires of the self-propelled vehicle travel on a snow-ice surface with a large amount of friction, which is roughened.

[Brief description of drawings]

FIG. 1 is a schematic side view illustrating the operation of a snow removal blade mounted on a self-propelled vehicle.

FIG. 2 is a front view in which a part of a cutting blade attached to a snow removal blade is omitted.

FIG. 3 is a side view of the above.

FIG. 4 is an enlarged plan view of another embodiment.

FIG. 5 is an enlarged plan view of another embodiment.

FIG. 6 is an enlarged plan view of another embodiment.

[Explanation of symbols]

 1 Cutting Edge for Cutting into Rough Surface 2 Snow Blade 1A Cutting Edge Base Material 1B Convex Forming Material 1C Recess 1D Convex

Claims (2)

[Scope of utility model registration request] 1. A vertical bar-shaped convex portion forming material (1B) made of the same or different material as that of the base material of the cutting blade (1B) is provided on the front surface of the cutting blade (1A) which is the advancing direction side of the base material. Recesses (1C) and protrusions (1D) that are fixed in parallel by welding or the like
Are alternately formed adjacent to each other, and the recesses (1
The thickness (1C1) of C) is greater than the thickness (1D1) of the convex portion 1D.
A cutting edge that cuts into a rough surface, characterized by being made thin . 2. The shape of the convex portion forming material (1B) is a round bar (1B1), a prism (1B2), or a trapezoid (1B).
3) The cutting edge for cutting a rough surface according to claim 1, which has another shape.