JP3089403B2 - Tine with carbide tips - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is provided in a rough surface forming apparatus for preventing a mirror surface such as a snow-covered road surface and a frozen road surface from slipping, and forms a cut-off groove for slip prevention. The present invention relates to a U tine or a spring tine used in a roadside and a shoulder tine which is disposed in a roadside earth and sand treatment device and performs a straightening process on soil, weeds, and the like accumulated on the roadside.

[0002]

2. Description of the Related Art Heretofore, this type is as follows. A. A conventional rough surface forming apparatus is disclosed in Japanese Utility Model Application No. 5-73494 as "spring tine" and Japanese Patent Application No. 7-26266.
In U.S. Pat. No. 5,838,849, it is disclosed that "U tine" is used to form a non-slip cutting groove on a snow-covered road surface or a frozen road surface. B. Japanese Utility Model Application No. 2-111004 discloses that the correction of earth and sand and weeds deposited on the road shoulder is performed by "shoulder tine".

[0003]

The above-mentioned prior art has the following problems. Spring tine and U tine are concerned with forming a large number of cutting grooves for the purpose of preventing slippage on snow-covered roads and icy roads, and shoulder tine is not concerned with the adjustment of sediment and weeds deposited on shoulders. Good without problems,
The frequency of replacement due to contact wear with the road surface due to the use of these tines has been a problem. The present invention has been made in view of such problems of the related art,
The aim is to provide something that can: A cemented carbide tip is melt-bonded to the front end of a tine for a rough surface forming device and a shoulder tine for a roadside earth and sand treatment device, which wears in contact with a road surface or the like, and wear resistance is measured.

[0004]

In order to achieve the above object, the present invention is as follows. Claim
Invention of claim 1, wherein, in the U Tyne 1A or rough forming apparatus spring tine 2A rough surface forming apparatus, each
The front ends of the tines 1A and 2A are cut into L-shape.
Forming L-shaped cutting parts 1A11 and 2A11 for tine fitting
Then, the vertical rear end face of the carbide tip 4 and the water
L-shaped cutting part 1A11 with two flat upper end faces for tine fitting,
Characterized in that it is melt-bonded in a fitted state to 2A11.
Is what you do . The invention according to claim 2 provides a shoulder tine 3A for a roadside soil treatment device , wherein each of the tines is provided.
Cut the front end of 3A into L-shape to fit tine
The cutting part 3A11 is formed and then the carbide tip 4
The vertical rear end surface and the horizontal upper end surface are tine-fitted.
Melt-bonded to the L-shaped cutting part 3A11 for use
And it is characterized in and this. The invention according to claim 3 is
In the invention described in claim 1 or claim 2, the carbide tip 4 has a substantially trapezoidal shape in a cross section in a vehicle traveling direction.
It is configured to be approximately triangular, approximately square, or semicircular
It is characterized by that .

[0005]

Embodiments of the present invention will be described with reference to the drawings. A. Tines used for rough surface formation In snowy and cold regions during the winter months, traffic becomes snow-covered roads and frozen roads due to passing vehicles, and the mirror surface is created due to the friction between the frozen roads and the tires of the passing vehicles and the effect of temperature. There is a road surface. Further, also in the snow removing machine, the friction between the cutting edge of the snow plow and the blade and the snow-covered road surface or the frozen road surface becomes a mirror-finished road surface, and the frictional resistance between the tire of the passing vehicle and the mirror-finished road surface is reduced. It becomes smaller and slippery. Therefore, a large number of cutting grooves are formed on the road surface in a mirror-finished state for slip prevention, and a large number of tines having a diameter of about 6 mm to about 14 mm are arranged to form an efficient cutting groove, The tine is given an appropriate pressing force against the road surface to form a large number of cutting grooves for the purpose of preventing slippage on the mirror surface of the road surface as the vehicle advances.
A well-known tine mounting frame is mounted to be able to move up and down by raising and lowering mechanisms disposed at the lower center and lower rear of the snow removing vehicle. That is, the tine mounting frame (not shown)
In the, a large number of U tine for the rough surface forming device or spring tine for the rough surface forming device is provided for each purpose,
A number of cutting grooves are formed on a mirror-finished road surface such as a snow-covered road surface and a frozen road surface as the snow-removing vehicle advances by an appropriate pressing force against the road surface. In the present invention, in order to reduce the trouble of replacement due to the wear of the U tine or the spring tine for the rough surface forming device, a carbide tip having excellent wear resistance is provided on the front surface of the tip of the tine on the vehicle traveling direction side. No. 4 is formed by fusion bonding.

B. About tine used for roadside soil processing In the roadside soil processing apparatus, several shoulder tines are attached to the lower surface of a known tine flange disposed on the side of the work vehicle, and the tine flange is attached with the rotation of the oil motor. By rotating the shoulder tine and applying a rotational force to the shoulder tine, soil, weeds, and the like accumulated on the road shoulder are subjected to a leveling process as the vehicle advances. In the present invention, in order to reduce the trouble of replacement due to wear, a cemented carbide tip 4 having excellent wear resistance is melt-bonded to the front surface of the tip of the shoulder tine which is in the vehicle traveling direction side due to rotation of the tine flange. Is what you do.

Reference numeral 1 denotes a tine with a cemented carbide tip according to the first invention, which is based on the U tine 1A for a rough surface forming device. The super hard tip 4 is melt bonded.

Reference numeral 2 denotes a spring tine 2A for a rough surface forming device.
In a tine with a cemented carbide tip according to another embodiment of the first invention, a cemented carbide tip 4 is melt-bonded to the front surface of the spring tine 2A at the tip end of the vertical round bar-shaped leg 2A1 on the vehicle traveling direction side. ing.

Reference numeral 3 denotes a tine with a cemented carbide tip according to the second invention on the premise of a shoulder tine 3A for a roadside soil treatment device.
The cemented carbide tip 4 is melt-bonded to the front surface of the shoulder tine 3A at the tip of the vertical round bar-shaped leg 3A1 on the vehicle traveling direction side.

The structure relating to the fusion bonding of the cemented carbide tip 4 to each of the tines 1A, 2A, 3A is as follows. The front end of each tine 1A, 2A, 3A is L
L-shaped cutting parts 1A11, 2
A11 and 3A11 are formed, and thereafter, two surfaces of a vertical rear end surface and a horizontal upper end surface of the cemented carbide tip 4 are melt-bonded to the L-shaped cut portions 1A11, 2A11, and 3A11 for tine fitting. . In this case, regarding the fusion bonding of the cemented carbide tip 4, the contact surface of the tip of the tine with the cemented carbide tip 4 is cut smoothly and flatly. This is necessary in order to reliably maintain the melt adhesion of the tine, the molten adhesive 5 and the cemented carbide chip 4 as the base material.

[0011]

EXAMPLES Further, as a result of an experiment under the following conditions,
Very good results were obtained. A. The carbide tips 4 are configured in several types in cross-sectional shape so as to be suitable for the intended use. a. Reference numeral 4A denotes a substantially trapezoidal carbide tip formed in a substantially trapezoidal shape in the vehicle traveling direction in a cross section. b. Reference numeral 4B denotes a substantially triangular cemented carbide tip which is formed in a substantially triangular shape in the cross section in the vehicle traveling direction. c. 4C is a substantially square cemented carbide tip formed in a substantially square shape in the cross section in the vehicle traveling direction. d. Reference numeral 4D denotes a semicircular carbide tip that is formed in a semicircular shape in the cross section in the vehicle traveling direction. B. The application of each tine is roughly described below. a. When forming a cutting groove for the purpose of preventing slippage on an ice floe on a frozen road surface, a substantially trapezoidal carbide tip 4A and a substantially triangular carbide tip 4B are appropriate if described according to the cross-sectional shape of the carbide tip. b. In addition, in the case of the substantially trapezoidal carbide tip 4A and the substantially triangular carbide tip 4B, when the earth and sand and the weeds deposited on the road shoulder are melt-bonded to the shoulder tine for adjusting processing,
It is effective for root cutting of weeds. c. Substantially square carbide tip 4C and semicircular carbide tip 4D
In the case of, when spraying a snow-melting agent such as calcium chloride on the snow-covered road surface and the frozen road surface to melt the snow, the snow-melting agent sprayed on the anti-skid cutting groove formed by the above-mentioned carbide tip tends to stay, It is effective in preventing scattering outside.

[0012]

Since the present invention is configured as described above, the following effects can be obtained. According to the present invention, the carbide tip 4 comes into direct contact with earth and sand, weeds, and the like deposited on the frozen road surface and the road shoulder, sufficiently withstands severe impact and vibration, and can exhibit an effect of excellent wear resistance. Further, a tine for a rough surface forming device for forming a cutting groove for the purpose of preventing slippage on a snow-covered road surface and a frozen road surface, and a shoulder tine for a roadside soil treatment device for correcting soil, weeds, and the like deposited on the roadside, respectively. Since the cemented carbide tip is melt-bonded to the front end portion of the front surface, excellent effects of vibration resistance, impact resistance and abrasion resistance can be exhibited. Further, the snow-melting agent sprayed after the formation of the slip-preventing cutting groove is easily retained in the cutting groove, and the effect of preventing the snow-melting agent from scattering outside the road can be exhibited.

[Brief description of the drawings]

FIG. 1 is a front view of a tine with a carbide tip according to a first invention.

FIG. 2 is a side view of the same.

FIG. 3 is a front view of a tine with a carbide tip according to a second invention.

FIG. 4 is a side view of the same.

FIG. 5 is a front view of a tine with a carbide tip according to a third invention.

FIG. 6 is a side view of the same.

FIG. 7 is an enlarged vertical sectional view taken along line AA.

FIG. 8 is an enlarged cross-sectional view illustrating a substantially trapezoidal carbide tip.

FIG. 9 is an enlarged cross-sectional view illustrating a substantially triangular carbide tip.

FIG. 10 is an enlarged cross-sectional view illustrating a substantially square carbide tip.

FIG. 11 is an enlarged cross-sectional view illustrating a semicircular carbide tip.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 tine with carbide tip 1A U tine for rough surface forming device 2 tine with carbide tip 2A spring tine for rough surface forming device 3 tine with carbide tip 3A shoulder tine for roadside soil treatment device 4 carbide tip 4A approximately trapezoidal super Hard tip 4B Substantially triangular carbide tip 4C Substantially square carbide tip 4D Semicircular carbide tip 5 Fused adhesive

Continuation of the front page (56) References JP-A-8-199524 (JP, A) JP-A-49-99803 (JP, A) JP-A 7-38218 (JP, U) JP-A 4-70332 (JP , U) (58) Fields investigated (Int. Cl. ⁷ , DB name) E01H 5/12 E01C 23/08 E01H 11/00

Claims (3)

(57) [Claims] 1. A tine (1A) for a rough surface forming device or a spring tine (2A) for a rough surface forming device,
Cut the front end of each tine (1A, 2A) into an L-shape.
L-shaped cutting part (1A11, 2A1)
1), and then vertical in the carbide tip (4)
The rear end surface and the horizontal upper end surface are L-shaped with tine fitting.
It is melted and bonded to the shaved parts (1A11, 2A11)
Tine with hard tip, characterized by that. 2. The front end of each of the tines (3A) in a shoulder tine (3A) for a roadside earth and sand treatment device.
L-shaped cutting part (3A)
11), followed by a drop in the carbide tip (4).
L-shape with two tine fittings: a straight rear end surface and a horizontal upper end surface
A tine with a cemented carbide tip characterized by being melt-bonded in a fitted state to a cutting portion (3A11) . 3. The carbide tip (4) is formed in a cross section in a substantially trapezoidal shape, a substantially triangular shape, a substantially quadrangular shape, or a semicircular shape in the vehicle traveling direction.
Tine with carbide tip described.