JPH07166523A - Intermittent cutting method and intermittent cutting device for ice snow road - Google Patents

Abstract

PURPOSE:To improve the braking effect of an automobile on an ice snow road and minimize the occurrence of accidents by continuously forming cut grooves symmetrically to the right and left on the ice snow road with a well-known road sweeper. CONSTITUTION:A pair of the right and left side cutter brushes provided below side faces and a pair of main brushes provided at the center section of the rear and fitted to a road sweeper 2 are removed, and side cutters 3 and main cutters 4 arranged with cutter tips into a fishing hook shape are fitted to rotatable disks respectively. When the side cutters 3 and the main cutters 4 are rotated inward in the traveling direction respectively during a travel, thick cut grooves such as loci 3E, 4E are continuously cut on an ice snow road by these tips.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an interrupted cutting method for an ice and snow road and an interrupted cutting device for specifically realizing this interrupted cutting method.

[0002]

2. Description of the Related Art Conventionally, ice and snow roads have been treated as follows. 1. Snow is removed by a snowplow vehicle. 2. Sprayed calcium chloride. 3. It is spraying sand. 4. Road heating is applied to a part of the road.

[0003]

The problems described in the prior art have the following problems. 1. Snow removal costs are high if the snow removal vehicle removes snow. 2. The method of spraying calcium chloride causes salt damage. 3. The method of spraying sand causes problems such as dust pollution and clogging of sewers. 4. Road heating a part of the road increases construction costs and maintenance costs. The present application has been made in view of such problems of the conventional technology, and an object of the present application is to provide a device capable of solving the above problems.

[0004]

In order to achieve the above object, the present invention is as follows. That is,
A first aspect of the present invention is an ice-snow road configured such that a cutting groove that draws a fishhook-shaped trajectory when viewed from a plane with respect to a traveling direction of a vehicle on a surface of a snow road is symmetrically cut intermittently. This is an intermittent cutting method. In this case, a pair of left and right side cutters that are rotatably provided inward with respect to the traveling direction of the vehicle at the position of the side surface lower surface of the vehicle such as a road sweeper, and behind the vehicle with respect to the traveling direction of the vehicle. With a pair of left and right main cutters that are rotatably provided inward toward each other, the cutting grooves that form a hook-shaped trajectory on the surface of the ice and snow road when viewed in a plane with respect to the traveling direction of the car are symmetrical. It can be configured to cut intermittently in the state.

In the second invention, a pair of left and right side cutters 3 are provided on the sub-frame 2A of the load sweeper 2 so as to be rotatable inward with respect to the traveling direction of the load sweeper with the lower surface of the tip of the body panel cover. ，
3 and a pair of left and right main cutters 4, 4 provided behind the subframe 2A of the road sweeper 2 so as to be rotatable inward with respect to the traveling direction of the load sweeper.
The side cutter 3 includes a disc 3A having a predetermined diameter, a leg 3B formed of a wire hung obliquely downward on the lower surface of the outer periphery of the disc 3A at equal intervals, and a connecting metal piece 3C at the tip of the leg 3B. And a cutter tip 3D that is detachably attached via the side cutter 3. The side cutter 3 is supported in a front portion of the side cutter 3 that rotates when viewed from the side with respect to the traveling direction of the load sweeper 2. The cutter tip 3D is configured to be inclined at a constant angle so that the front is low and the rear is high so that the cutter tip 3D contacts the ground. Further, the main cutter 4 has a disc 4A having a predetermined diameter and a lower surface of the outer peripheral portion of the disc 4A at equal intervals. A leg 4B composed of a wire hung diagonally downward,
It is composed of a cutter tip 4D that is detachably attached to the tip of the leg 4B via a connecting metal piece 4C. The main cutter 4 is supported by the main body when viewed from the side with respect to the traveling direction of the load sweeper 2. It is an intermittent cutting device for an ice and snow road that is configured in a state in which the cutter tip 4D located in the front portion of the cutter 4 is inclined at a constant angle so that the front is low and the rear is high so that the cutter tip 4D is grounded.

In this case, the side gutta brush and the main brush mounted on the road sweeper are removed in order to utilize the road sweeper 2 for intermittent cutting on an ice and snow road, and the brush bristle portion is removed from the brush shaft. After that, the side cutter and the main cutter can be attached, and the side cutter and the main cutter can be configured to run while rotating inward in the traveling direction.

[0007]

EXAMPLES Examples will be described with reference to the drawings. The intermittent cutting method for ice and snow roads as the first invention is configured as follows. A pair of left and right side cutters that are rotatably provided inward with respect to the traveling direction of the vehicle at the position of the side surface of the vehicle such as a road sweeper, and a pair of left and right side cutters located behind the vehicle and inward with respect to the traveling direction of the vehicle. With a pair of left and right main cutters rotatably facing each other, the cutting groove that draws a fishhook-shaped locus on the surface of the ice and snow road when viewed in plan with respect to the traveling direction of the car is intermittently symmetrical. It is configured to cut mechanically.

1 is an intermittent cutting device for an ice and snow road as a second invention. Reference numeral 2 is a well-known road sweeper, 2A is a subframe, 2B is a body panel cover, 2C is a hopper provided to be lifted and lowered by a lift arm 2D, and 2E is a tail door of the hopper 2C. Although not shown in the drawings, when the road sweeper is used for original road cleaning, a known side gutter brush is mounted on the front side and a known main brush is mounted on the rear side. Brush bristles are attached to the brush shaft 2F that is suspended downward. Since the present invention utilizes such a road sweeper 2 so as to be capable of intermittent cutting on an ice and snow road, the side gutta brush and the main brush are removed, and the brush bristle portion is removed from the brush shaft 2F. It has been removed. (See Figure 5)

Reference numerals 3 and 3 denote a pair of left and right side cutters provided on the subframe 2A of the road sweeper 2 so as to be rotatable inward with respect to the advancing direction of the load sweeper with the lower surface of the tip of the body panel cover. .
Reference numerals 4 and 4 denote a pair of left and right main cutters provided behind the subframe 2A of the road sweeper 2 so as to be rotatable inward with respect to the traveling direction of the load sweeper.

Therefore, the side cutter 3 is composed of a disk 3A having a predetermined diameter, and a leg 3B composed of a wire hung obliquely downward on the lower surface of the outer peripheral portion of the disk 3A at equal intervals.
And a cutter tip 3D that is detachably attached to the tip of the leg 3B via a connecting metal piece 3C. The cutter tip 3D is formed in a rectangular block shape, but as shown in FIG. 4, the cutter tip 3D is fitted to the lower end step portion of the connecting hardware 3C and attached by using bolts and nuts. The corners of the chip will be grounded. In this case, the supporting state of the side cutter 3 is low in the front and high in the rear so that the cutter tip 3D located in the front part of the side cutter 3 rotating when viewed from the side with respect to the traveling direction of the load sweeper 2 is in contact with the ground. It is tilted at a certain angle.

The main cutter 4 is composed of a disc 4A having a predetermined diameter, and a leg 4B composed of a wire hung obliquely downward on the lower surface of the outer peripheral portion of the disc 4A at equal intervals.
And a cutter tip 4D that is detachably attached to the tip of the leg 4B via a connecting metal piece 4C. The cutter tip 4D is formed in a rectangular block shape like the above-mentioned cutter tip 3D, but is fitted to the lower end step portion of the connecting hardware 4C and attached by using bolts and nuts to perform cutting work. Sometimes, the corners of the cutter tip are grounded.

In this case, the support state of the main cutter 4 is low in the front so that the cutter tip 4D located in the front part of the main cutter 4 as viewed from the side with respect to the traveling direction of the load sweeper 2 is grounded. It is in a state of being inclined at a constant angle so as to be higher. And these side cutters 3, 3 and the main cutter 4,
4 is the side cutter 3, 3 with reference to FIGS. 2 and 12.
The locus 3E drawn by the cutter tip 3D and the locus 4E drawn by the cutter tip 4D of the main cutters 4, 4 are arranged so as to be continuous. Therefore, the shapes of the loci 3E and the loci 4E are fishhook-shaped in a state of being bilaterally symmetric with respect to the traveling direction of the load sweeper 2 in a plan view.

The details of the construction and mounting state of the side cutters 3, 3 will be described. 3F is a hydraulic motor for rotating the disk 3A, and an inverted U-shaped metal fitting 3F1 is provided side by side with this hydraulic motor. The inverted U-shaped metal fitting 3F1 is mounted on the sub-frame 2A with the side cutter support fitting 3G
Supported by.

Therefore, the support fitting 3 of this side cutter
G is an inner bracket 3G1 fixed to the side surface of the subframe 2A, an outer bracket 3G3 connected to the inner bracket by a vertical pin 3G2, and a lower end of the outer bracket is orthogonal to the traveling direction of the load sweeper. A horizontal arm 3G5 connected by a horizontal pin 3G4, a ground load cylinder 3G6 connecting the upper end of the outer bracket 3G3 and the rear end of the undulating arm 3G5, a lower end of the outer bracket 3G3 and the subframe 2A of the load sweeper. It is composed of an overhanging cylinder 3G7 stretched between them.
Then, the rear end of the undulating arm 3G5 and the inverted U-shaped hardware 3F1
The lower end of the inverted U-shaped metal 3F1 and the upper end of the outer bracket 3G3 are connected to each other by a horizontal pin 3G8 parallel to the horizontal pin 3G4.
Are connected by.

The support metal fitting 3G of this side cutter operates as follows. That is, the ground load cylinder 3G
By expanding and contracting 6, the ground contact load of the side cutter 3 can be kept constant. As a result, it is possible to avoid cutting the pavement surface when cutting the ice and snow road surface. Further, by expanding and contracting the overhanging cylinder 3G7, the side cutter 3 can be pushed out to the outside of the side surface width of the vehicle at the time of work, and can be drawn to the inside of the side surface width after the work. Further, by advancing and retracting the nut screwed to the rear end of the tilt angle adjusting rod 3G9, the ground surface of the cutter tip 3D is different, and the circumferential frequency of the locus 3E can be changed.

The details of the construction and mounting state of the main cutters 4, 4 will be described. 4F is a hydraulic motor that rotates the disc 4A.
The letter-shaped metal fittings 4F1 are installed side by side. The main cutters 4 and 4 are supported via a support frame device 5 at a position rearward of the subframe 2A of the load sweeper 2 in a state in which they can be raised and lowered and their support angles can be adjusted.

Therefore, the supporting frame device 5 is composed of an upper frame portion 6 and a lower frame portion 7 suspended from the upper frame portion 6 so as to be vertically movable.
The upper frame portion 6 includes a frame 6A formed in a square shape in plan view with an angle member, a vertical hydraulic cylinder 6B of a lower frame portion arranged in the front-rear direction at the center of the frame 6A, and a hydraulic cylinder for vertical movement. It is composed of left and right guide wheels 6C that are rotatably provided at the ends, and left and right suspension chains 6D that move up and down according to the advance and retreat of the guide wheels 6C. (See FIG. 7) 6D1 is a chain guide. Then, the upper frame portion 6 is brought close to the brush shaft 2F portion of the load sweeper 2 from which the brush bristle portion is removed, and an appropriate connecting frame 6E is used to connect the subframe of the load sweeper 2 to the upper frame portion 6. It is attached to the member part.
(See Figure 5)

The lower frame portion 7 has a frame 7A formed in a rectangular shape in plan view with an angle member, a dirt shoe 7C supported in the front-rear direction on the left and right lower surfaces of the frame 7A through side plates 7B, and left and right sides of the frame 7A. A pair of support frames 7 arranged in the front-rear direction
D and. And the main cutter 4,
The rear end of the horizontal L-shaped metal fitting 4F1 at 4 is a support frame 7D with a pin 7D1 orthogonal to the traveling direction of the load sweeper 2.
Are linked to. On the other hand, a damper 7E is disposed between the upper end of the laterally L-shaped metal 4F1 and the connecting rod 7E2 fixedly erected on the shaft 7E1 rotatably laterally mounted on the rear portion of the frame 7A.

The operation of the damper 7E is as follows.
The ground load can be kept constant. That is, when cutting the ice and snow road surface, it is possible to prevent the pavement surface from being scraped and to prevent the main cutters 4 and 4 from being pushed upward due to the hardness difference of the ice and snow. 7
F is a lever for restricting the ground load of the main cutters 4 and 4, and the rear end of the lever body 7F1 is fixed to the shaft 7E1 and the front end thereof is inserted into a restriction bolt 7F2 that is planted in the support frame 7D.

Further, the lower frame portion 7 is connected to the elevator portion of the road sweeper 2 via a subframe 8. Therefore, the sub-frame 8 includes a sub-frame main body 8A composed of a square pipe orthogonal to the traveling direction of the load sweeper 2 and a forward connecting plate 8B pivotally attached to both ends of the sub-frame main body 8A. The sub-frame body 8A is composed of connecting brackets 8C provided near both ends of the rear surface. This connecting plate 8B is connected to the elevator part of the road sweeper 2. On the other hand, connecting brackets 7G are provided at both ends and the center of the front surface of the frame 7A in the lower frame portion 7,
These connecting brackets 7G and the above-mentioned connecting brackets 8
A connecting rod 7G1 is hung on C, and these are connected by a pin 7G2 orthogonal to the traveling direction of the load sweeper 2.

The present invention operates as follows. 1. To use the road sweeper 2 for intermittent cutting on ice and snow roads, remove the side gutta brush and main brush attached to the road sweeper, remove the bristle parts from the brush shaft, and then remove the side cutter and the main cutter. A cutter is attached, and the side cutter and the main cutter run while rotating inward in the traveling direction. As a result, as shown in FIG. 12, a cutting groove such as the locus 3E drawn by the cutter tip of the side cutter and a cutting groove such as the locus 4E drawn by the cutter tip of the main cutter are intermittently formed on the surface of the ice and snow road. Will be cut. 2. When using as a road sweeper, replace the side cutter and main cutter with the side gutta brush,
The main brush and bristles will be attached.

[0022]

Since the present invention is configured as described above, it has the following effects. 1. The braking effect of the car is enhanced and the braking distance can be shortened. 2. The start of the car will be better and the traffic will be less. 3. The car does not skid. 4. Since no chemicals are used, no pollution occurs. 5. Before the car slips on the snowy road,
Since a cutting groove is intermittently provided in the traveling lane on the ice-and-snow road to improve the braking effect, it is not necessary to remove a certain amount of snow with a snow-removing vehicle, so the cost is low. 6. Intermittent cuts in the ice and snow roads lead to faster temperatures and melting snow.

[Brief description of drawings]

FIG. 1 is an overall perspective view.

FIG. 2 is a schematic plan view.

FIG. 3 is a perspective view of a side cutter portion.

FIG. 4 is an enlarged perspective view of a main part of the cutter chip portion as a center.

FIG. 5 is a perspective view of a main part centering on a main cutter part.

FIG. 6 is an exploded perspective view of a main cutter and a support frame device portion.

FIG. 7 is a perspective view of an upper frame portion related to the main cutter.

FIG. 8 is a plan view showing a relationship between a lower frame portion and subframes.

FIG. 9 is an exploded perspective view illustrating a lever that regulates a ground load of the main cutter.

FIG. 10 is a view on arrow AA.

FIG. 11 is a vertical cross-sectional view illustrating a supported state of the main cutter.

FIG. 12 is a plan view showing states of a locus drawn by a side cutter and a locus drawn by a main cutter.

[Explanation of symbols]

 1 Intermittent cutting device for ice and snow roads 2 Road sweeper 3 Side cutter 4 Main cutter 5 Support frame device

Claims (4)

[Claims] 1. A cutting groove on a surface of an ice-and-snow road that draws a fishhook-shaped trajectory when viewed in a plane with respect to a traveling direction of a vehicle is configured to intermittently cut in a bilaterally symmetrical state. A feature of the intermittent cutting method for ice and snow roads. 2. A pair of left and right side cutters, which are rotatably inward with respect to the traveling direction of the vehicle at the position of the lower surface of the side surface of the vehicle such as a road sweeper, and a traveling direction of the vehicle behind the vehicle. With a pair of left and right main cutters that are rotatably inward with respect to each other, the left and right cutting grooves are drawn on the surface of the ice and snow road to form a fishhook-like trajectory when viewed from a plane in the traveling direction of the vehicle. An intermittent cutting method for an ice and snow road, characterized by being configured to perform intermittent cutting in a symmetrical state. 3. A pair of left and right side cutters provided on the subframe (2A) of the load sweeper (2A) so as to be rotatable inward with respect to the advancing direction of the load sweeper with the tip lower surface position of the body panel cover. (3, 3) and a pair of left and right main cutters (4, 4) provided behind the subframe (2A) of the road sweeper (2) so as to be rotatable inward relative to the traveling direction of the load sweeper. ) And the side cutter (3)
A disc (3A) having a predetermined diameter, a leg (3B) composed of a wire hung obliquely downwardly at equal intervals on the lower surface of the outer peripheral portion of the disc (3A), and a metal fitting at the tip of the leg (3B) It is composed of a cutter tip (3D) that is detachably attached via (3C), and the supporting state of this side cutter (3) rotates when viewed from the side with respect to the traveling direction of the load sweeper (2). The cutter tip (3) located in the front part of the side cutter (3)
D) is configured to be inclined at a constant angle so that the front is low and the rear is high so as to be in contact with the ground, and the main cutter (4) includes a disc (4A) having a predetermined diameter and the disc (4A).
A leg (4B) composed of a wire hung diagonally downwardly on the lower surface of the outer peripheral portion of (A), and the leg (4B).
And a cutter tip (4D) that is detachably attached to the tip of B) via a connecting metal (4C),
The support state of the main cutter (4) is low in the front so that the cutter tip (4D) located in the front part of the main cutter (4) with respect to the traveling direction of the load sweeper (2) is grounded. An intermittent cutting device for ice and snow roads, characterized in that it is configured to incline at a constant angle so that the rear part becomes higher. 4. A side gutta brush and a main brush, which are mounted on the road sweeper so as to utilize the load sweeper (2) for intermittent cutting on an ice and snow road, and a brush bristle portion is removed from a brush shaft. After that, the side cutter and the main cutter are attached, and the intermittent cutting device for ice and snow roads is configured to run while rotating the side cutter and the main cutter inward with respect to the traveling direction.