JPH09228336A - Method of forming traversal non-slip streak on frozen road surface, and traversal non-slip streak forming device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently form a traversal non-slip streak for preventing the wheel slip of a traveling vehicle by elastically pressing a coining tooth member installed to a self-traveling vehicle onto a frozen road surface, and releasing the elastic pressing at a required timing. SOLUTION: A coning tooth member 1 long in the road width direction is installed to the rear chassis S of a self-traveling vehicle T through a tooth rocking beam 11, and the coining tooth member 1 is elastically pressed onto a frozen road surface R by a hydraulic cylinder 2 through an elastic pressing member 3 formed of a compression coil to form a traversal non-slip streak. As an elastic pressing releasing means 4, a roll cam 41 is rotated by a hydraulic motor to intermittently bring up the tooth rocking beam 11. Thus, the rotating speed of the hydraulic motor is synchronized with the advancing speed of the self-traveling vehicle T, whereby the traversal non-slip streaks can be efficiently formed at prescribed intervals on the frozen road surface R. The form of the coining tooth member 1 is changed, whereby non-slip streaks of square tooth form, oblique tooth form and the like can be formed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a technique for forming anti-slip striation marks on a frozen road surface, and more specifically, to efficiently provide a traversal anti-slip striation mark effective for preventing wheel slip of a traveling vehicle such as an automobile on a frozen road surface. The present invention relates to an epoch-making method that can be continuously formed, and a frozen road surface traversal anti-slip line forming apparatus suitable for carrying out the method.

[0002]

2. Description of the Related Art As is well known, when snow falls on a road in a snowy country, and automobiles and the like frequently pass on it, the snow on the road is crushed into an ice burn and slip accidents easily occur. Be in a dangerous state. Regarding major roads, the administrative authorities (national and local governments, etc.) make efforts to remove snow accumulated on the road to the roadside by dispatching snow removal trucks and snow removal graders for traffic protection during snow accumulation. However, since it is not possible to completely remove the snow on the road surface, light snow will inevitably remain on the road surface. Then, when the temperature drops below the freezing point in that state, the thin snow left on the road surface freezes and changes into a mirror-like ice barn, which makes it very easy for traffic to cause a slip accident. .

Under these circumstances, the road management authorities are making efforts to prevent slip accidents by applying ice proofing and applying anti-slip treatment to the frozen road surface of dangerous roads. By the way, as shown in Japanese Utility Model Publication No. 61-45227, a conventional technique generally used as an anti-slip treatment on a frozen road surface is a leaf spring-like ammunition having a snow cutting blade at a lower end of a snow removing machine such as a grader. Are arranged side by side, and while these snow cutting blades are pressed against the frozen road surface, the snow removing machine such as the grader is run and dragged, and after the dragging, the cutting locus of the snow cutting blades is a leaf spring-shaped bullet machine. The swaying motion forms a parallel waveform streak.

However, the anti-skid line mark formed by the device as described in Japanese Utility Model Publication No. 61-45227 has a frictional resistance in the transverse direction of the road that is increased and is effective in preventing side skid, but is formed. It was not very effective in preventing slipping in the direction of travel of the vehicle, because only the wave width of the trace increased the forward resistance.

The inventors of the present invention are all entitled to "slip prevention surface forming device" as shown in Japanese Utility Model Publication No. 3-10181, "slip prevention surface forming device having road surface-responsive roller" as disclosed in Japanese Utility Model Publication No. 6-1617. In addition, by proposing "a slip preventing scratch forming device on a snow road surface" disclosed in Japanese Utility Model Publication No. 6-9050, development efforts have been made to improve the slip preventing performance in the traveling direction of the vehicle.

Therefore, the "slip prevention surface forming device" of the above Japanese Utility Model Publication No. 3-10181 in which the inventors of the present invention have participated in the development pulls the spike roller having a large number of spikes planted on the rear surface of the snowplow. Since the snow plow passes through the trail of innumerable spikes, it is intended to exert its anti-slip performance in the vertical and horizontal directions. However, in this case, the spike marks are incomplete on the road surface with undulations and slopes, or snow adheres and solidifies between the spikes on the roller surface, and the spikes are buried in the snow layer. It was pointed out that the function as a spike roller would deteriorate.

The proposed anti-slip treatment technology for frozen road surfaces, which overcomes the drawbacks of the "anti-slip surface forming device" of Japanese Utility Model Publication No. 3-10181, is disclosed in Japanese Utility Model Publication No. 6-1617, "Road Surface Reactive Roller". The anti-slip surface forming device ". This product has a plurality of tooth rollers, which are formed in a spiral staircase on the circumference of which are toothed teeth of a geta, and are arranged side by side so that they can be independently oscillated, and these tooth rollers are towed to the rear of the snowplow. It is for running on a frozen road surface. According to this device, each tooth roller independently follows the road surface even if the road surface has undulations or slopes, so that it is possible to perform almost uniform anti-slip treatment on the frozen road surface, and each tooth is spiral. There is no drawback that snow will harden due to the stairs being apart. However, the tooth roller used in this device requires the tooth-shaped teeth of the geta to be welded one by one to the circumferential surface of the cylindrical roller, which makes the tooth roller very expensive to manufacture and is also formed. Since the impression mark of the tooth profile is small, we were not satisfied with the anti-slip performance.

The Japanese Patent Publication No. 6-9050, "Slip-Proof Scratch Forming Device", was proposed with the goal of solving all the drawbacks of the previously developed device at once, and a large number of scratch nails were formed on the edge of the endless belt. It is fixed and placed under the chassis of the self-propelled vehicle, and while the scratch nail on the edge of the endless belt is pressed against the frozen road surface, the endless belt is circulated to allow the self-propelled vehicle to travel, thereby forming a mesh on the frozen road surface. It is possible to form scratch-proof scratch streaks.

However, the mesh-shaped anti-slip scratch mark formed by the device of Japanese Utility Model Publication No. 6-9050 can exert excellent anti-slip resistance in vertical and horizontal directions even on a slippery frozen road surface. . However, the device of Japanese Utility Model Publication No. 6-9050 requires high speed rotation and free acceleration / deceleration mechanically because the scratch nail row on the lower surface of the endless belt must be strongly pressed against the road surface to make a circular motion. It is impossible, and therefore, when the self-propelled vehicle is driven at high speed, the formed mesh-like scratches extend in the traveling direction to form almost vertical scratch marks, which prevents the vehicle from slipping in the traveling direction. Since the function deteriorates, it was unsuitable for high-speed anti-slip treatment on frozen road surfaces, and large power is required to drive the endless belt mechanism, so the manufacturing cost must be very high. There was a resistance to marketability for widespread use in terms of offering price, and delivery destinations were limited.

[0010]

DISCLOSURE OF THE INVENTION The present invention has been made in view of the above-described situation of the prior art for applying anti-slip treatment to a frozen road surface or a snow-covered road surface, and its object is to: A practical method that can efficiently and accurately form skid-proof traversal scar lines that are suitable for suppressing forward slip accidents that are likely to occur due to running inertia of automobiles, etc. To provide the equipment.

Another object of the present invention is to provide a method effective for long-distance anti-slip treatment, which is capable of efficiently forming traversal anti-slip traces on a frozen road surface / compacted snow road surface over a long distance with a relatively simple mechanism. To provide the equipment.

Further, another object of the present invention is to provide traversal on a frozen road surface or a snow-covered road surface by an economical device which can be manufactured at a low cost with very few components and which hardly needs to worry about failure. It is to provide a rational method by which anti-skid line marks can be formed.

[0013]

Means adopted by the present inventor to solve the above problems will be described below with reference to the accompanying drawings.

First, the means adopted by the present invention in order to solve the above-mentioned technical problem in a method is as follows. While propelling the tooth member 1 against the frozen road surface in an oppressive state, the self-propelled vehicle T is advanced, and the stamping tooth member 1 intermittently releases the road surface oppression at a required timing to form a traversal anti-slip trace. It is characterized by the continuous stroke driving method of the width and width coining tooth member.

Next, the mechanical means adopted by the present invention to solve the above-mentioned technical problems is a road width direction in which the tooth profile is mounted on the chassis S of the self-propelled vehicle T so that it can be elastically pressed against the road surface R. A long coining tooth member 1; this coining tooth member 1
Of the frozen road surface traversal is formed by connecting the coining tooth member 1 with the elastic pressure releasing means 4 for intermittently releasing the road surface elastic force at a required timing when the road surface R is elastically pressed against the road surface R. The point is characteristic.

Therefore, to make a note about the technical elements constituting the present invention, first, as the self-propelled vehicle T, a conventionally known automobile such as a snow removal truck, a grader, a bulldozer, or a tractor having a self-propelled ability is adopted. Although possible, a snowplow truck capable of running at high speed is effective for anti-skid treatment on long-distance roads such as national roads and highways. In addition, as a reminder, in the term referred to as "frozen road surface" in "Claims" of the present specification, a road surface in a state in which snow accumulated on the road is hardened and becomes slippery , The road surface where the accumulated snow has hardened and hardened due to a sudden temperature decrease, and the road surface and the surface of the snow remaining after snow removal are frozen due to the temperature decrease and become a mirror surface included.

Next, the coining tooth member 1 which is long in the road width direction.
As the cutting edge, a cutting edge made of a steel strip, or a metal profile edge having a vertical rib tooth profile or a diagonal rib tooth profile can be adopted, and the lower end of the chassis S of the self-propelled vehicle 1 can come into contact with the road surface R so that it can pivot. Support. Further, as the coining tooth member 1, a plurality of divided tooth bodies 1a, 1a, ... Separated in the width direction can be used in combination.
In this case, the chassis S of the self-propelled vehicle T are independently pivoted.

In the present invention, the coining tooth member 1 is used.
Is arranged so that it can be pressed against the road surface R. Then, as a mechanism for elastically pressing the coining tooth member 1 on the road surface R,
For example, the fluid pressure cylinder 2 is pivotally supported on the chassis S so as to be located above the tooth member, and the working end of the fluid pressure cylinder 2 is inserted via the elastic member 3 into the coining tooth member 1.
When the piston 21 of the fluid pressure cylinder 2 is extended, it is buffered by the elastic force of the elastic member 3 and the lower end of the coining tooth member 1 is elastically pressed against the road surface R to be in an elastic pressure state. In this case, the elastic member 3 may be a spring, an air damper, or a rubber cushion body. Further, as another mechanism for elastically pressing the coining tooth member 1 on the road surface R, an air hammer for elastically pressing the tooth member 1 by air elasticity by a pressure variable type air cylinder while intermittently supplying / exhausting compressed air. If the mechanism is used to intermittently release the elastic pressure state, it is possible to omit the elastic pressure release means described later.

As the elastic force releasing means 4 for releasing the elastic force of the coining tooth member 1 on the road surface, for example, a roll cam 41 that is momentarily lifted is brought into contact with the pivot support mechanism portion of the tooth member, and this roll cam 41 is used as a hydraulic motor. It may be rotated by a fluid pressure motor such as 42. In this case,
If the rotational speed of the fluid pressure motor 42 is synchronized with the traveling speed of the self-propelled vehicle T, it is possible to form traversal anti-slip marks on the frozen road surface R at regular intervals. Further, as the rotational power of the roll cam 41, it is not always necessary to use a fluid pressure motor, and it is also possible to take it out from the wheel of the self-propelled vehicle T and use it.
Then, the vehicle speed of the self-propelled vehicle T and the rotation speed of the roll cam 41 are necessarily synchronized with each other.

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a traversal anti-slip trace forming device manufactured by applying the present invention will be described below, and a traversal anti-slip trace forming device is formed on a frozen road surface by using the device as an example of the embodiment. I want to explain how to do it.
1 is a partially omitted side view of a traversal anti-slip line forming device mounted on the rear portion of a snow removal truck as an embodiment of the present invention, and FIG. 2 is a partially enlarged rear view of the device seen from the rear, FIG. 4 is a partially enlarged side view showing a state in which the coining tooth member of the present apparatus is elastically pressed against the road surface. FIG. FIG. 6 is a partially enlarged side view showing a state in which the coining tooth member is lifted and fed, and FIG. 6 is a rear view showing another embodiment of the present invention in which the coining tooth member is composed of a plurality of divided tooth bodies.

In FIG. 1 to FIG. 5, reference numeral T denotes a snow removing truck which is a self-propelled vehicle T, and its chassis S.
The upper loading platform is equipped with an advancing and retracting moving cylinder whose hydraulic counterweight extends and retracts.

A pivot bracket B is fixed to the rear portion of the chassis S of the self-propelled vehicle T.
And an elastic member 3 including a coining tooth member 1, a fluid pressure cylinder 2, and a compression coil spring that are long in the vehicle width direction (= road width direction).
Are pivotally supported so that they can be swung up and down stepwise and up and down respectively.

The pivotal support mechanism of these members 1, 2, and 3 will be described below.

First, the coining tooth member 1 is fixed to a leg stay 12 suspended from the free end of a tooth swing beam 11 axially supported on the lower portion of the pivot bracket B. When 11 is swung up and down with the pivotal support of bracket B as a fulcrum, the coining tooth 1 also moves up and down.

Next, the fluid pressure cylinder 2 is pivotally supported at the bottom side on the upper portion of the pivot support bracket B. The tip of the piston 21 of the fluid pressure cylinder 2 is connected to the free end of the swinging link 22 pivotally supported by the middle part of the pivot bracket B, and the swinging link 22 is moved by the forward / backward movement of the piston 21. Raise and lower to rock.

The elastic member (compression coil spring) 3 is
The tooth rocking beam 11 and the rocking link 22 are connected so as to be elastically expandable and contractible. Therefore,
When the piston 21 of the fluid pressure cylinder 2 extends and swings the swing link 22 downward, the fluid pressure cylinder 2
The pressing force of is to swing the tooth swing beam 11 downward through the elastic member 3 to press the coining tooth member 1 against the road surface R. At this time, the pressing force of the fluid pressure cylinder 2 is Since the elastic member 3 is buffered by the intervention of the elastic member 3, the coining member 1 is brought into contact with the road surface R in an elastic state.

Next, the elastic pressure releasing means 4 for releasing the elastic pressure of the coining tooth member 1 on the road surface R at a required timing.
As this, in the present embodiment, a rotary cam mechanism that intermittently lifts the tooth oscillating beam 11 is adopted.

That is, in this embodiment, the roll cam 41 is rotatably mounted below the tooth swing beam 11 on the pivot bracket B, and the outer periphery of the roll cam 41 is the tooth swing beam. It is in contact with the lower part of 11. The output shaft of the hydraulic motor 42 is connected to the rotary shaft of the roll cam 41.
When the roller cam 41 is rotated, the tooth rocking beam 11 is intermittently lifted by the action of the roll cam 41, and at that time, the coining tooth member 1 momentarily releases the elastic force on the road surface R. By the way, in the present embodiment, the hydraulic motor 42
Since the well-known electronic controller (not shown) is adopted as the cam rotation control means, the rotation of the vehicle can be rotated in synchronization with the traveling speed of the self-propelled vehicle T.

Therefore, when the anti-skid treatment is applied to the frozen road surface R by the device of the present embodiment, the device of the present embodiment is mounted on the self-propelled vehicle T to press the coining tooth member 1 on the frozen road surface R. It suffices to operate the hydraulic motor 42 to drive it, and then the roll cam 41 swings the tooth swing beam 11 upward to momentarily release the elastic force of the coining tooth member 1 against the frozen road surface R, and then again. Since the lower end edge of the coining tooth member 1 is elastically struck on the frozen road surface R, traversal anti-skid line marks at regular intervals are successively formed after the traveling vehicle T travels. is there. FIG. 3 shows a state in which the fluid pressure cylinder 2 extends to the length P ₁ and elastically presses the coining tooth member 1 on the frozen road surface R via the tooth swinging beam 11.
In this state, the large diameter portion of the roll cam 41 causes the tooth swing beam 11
As shown in FIG. 4, the fluid pressure cylinder 2 keeps the length P ₁ at that moment as shown in FIG.
Oscillates upward, and the coining roll member 1 is temporarily lifted from the frozen road surface R to release the elastic pressure. 5 shows the posture of the apparatus according to the present embodiment during forwarding, in which the fluid pressure cylinder 2 is reduced to a length P ₀ and the tooth swing beam 11 is swung upward through the elastic pressure member 3. In this state, the coining tooth member 1 is lifted from the road surface R.

The specific description of the present embodiment example shown in FIGS. 1 to 5 is as described above, but the present invention is not limited to the above-mentioned embodiment, and is not limited to the “claims”. Needless to say, various design changes can be made within the description. For example, as an example of the design change of the coining tooth member 1, as shown in FIG. 6, the coining tooth member 1 is divided into a plurality of parts in the width direction. Tooth body 1a ・ 1a ・ ・
It is needless to say that it is within the technical scope of the present invention to adopt a mechanism in which ..

Further, in the above-mentioned embodiment, although the narrow width cutting edge made of steel strip is adopted as the coining tooth member 1, the vertical ribs 1b, 1b , And the coining tooth member 1 with vertical rib tooth profile, and the coining tooth member 1 with oblique rib tooth profile with laterally formed ribs 1c, 1c, ... As shown in FIG. It is also free to adopt, and if so, the anti-slip function of the traversal anti-skid line marks formed on the frozen road surface R is also enhanced in the lateral direction, but these design changes are also within the technical scope of the present invention. It goes without saying that it belongs.

[0032]

As described above, the method and the device for forming the traversal anti-slip traces on the frozen road surface according to the present invention have been described with reference to the embodiments, as described above. Adopting a method in which a tooth member is elastically attached to the road surface and is advanced while pressing the coining tooth against the frozen road surface in an elastically pressed state to intermittently cancel the road surface elastic pressure at the required timing. Therefore, it is possible to efficiently form the traversal anti-slip line marks having excellent anti-slip force in the traveling direction on the frozen road surface, and it is possible to effectively prevent the slip accident.

Moreover, the apparatus used in the present invention is such that the stamping tooth member that is long in the road width direction, the elastic force mechanism means that elastically presses the stamping tooth member on the road surface, and the elastic force that intermittently releases the stamping tooth member in the road surface elastic pressure state. Since it can be configured with the releasing means, it can be manufactured at low cost, the financial burden due to the introduction can be significantly reduced, and since the structure is simple, there are few breakdowns and high-speed traveling is possible. Since it is possible, long-distance road surface anti-slip treatment can be efficiently performed.

As described above, according to the present invention, the obstacles that have been heretofore problematic in the anti-slip treatment on the frozen road surface can be eliminated, and the device to be used can be provided at a low cost, which is useful for traffic safety in snowy countries. However, it can be said that it is very large.

[Brief description of drawings]

FIG. 1 is a partially omitted side view of a traversal anti-slip trace forming device mounted on a rear portion of a snow removal truck as an embodiment of the present invention.

FIG. 2 is a partially enlarged rear view of the present apparatus when viewed from the rear.

FIG. 3 is a partially enlarged side view of a state in which a coining tooth member of the present device is elastically pressed against a road surface.

FIG. 4 is a partially enlarged side view showing an operation at the time of releasing the elastic pressure of the coining tooth member in the present apparatus.

FIG. 5 is a partially enlarged side view showing a state in which a coining tooth member of the present apparatus is lifted and fed.

FIG. 6 is a rear view showing another embodiment of the present invention in which the coining tooth member is composed of a plurality of divided tooth bodies.

FIG. 7 is a perspective view of a coining tooth member with a vertical rib tooth profile illustrated as a modified example of the coining tooth member adopted in the present invention.

FIG. 8 is a bottom view of the coining tooth member with the oblique rib tooth profile illustrated as a modified example of the coining tooth member adopted in the present invention.

[Explanation of symbols]

 1 Coin stamping tooth member 1a Divided tooth body 11 Tooth swinging beam 11 12 Leg stay 2 Fluid pressure cylinder 21 Piston 22 Swinging link 3 Elastic member 4 Elastic force releasing means 41 Roll cam 42 Fluid pressure (hydraulic) motor B Pivot bracket R Frozen road surface S chassis T self-propelled vehicle

Claims (10)

[Claims] 1. A coin-pressing tooth member, which is mounted on a chassis of a self-propelled vehicle so as to be capable of being elastically pressed against a road surface, is long in the road width direction while being pressed against the frozen road surface to advance the self-propelled vehicle, and the coin-pressing tooth member. A method for forming traversal anti-slip marks on a frozen road surface, which is characterized by forming traversal anti-skid marks by intermittently releasing the road surface pressure at a required timing. 2. The frozen road surface according to claim 1, wherein the timing of releasing the elastic pressure of the coining tooth member is made proportional to the traveling speed of the self-propelled vehicle to form traversal anti-slip marks at predetermined intervals. Traversal A method of forming anti-skid lines. 3. A traversal anti-slip trace on a frozen road surface according to claim 1 or 2, wherein a transversely long cutting edge is mounted as a coining tooth member on a self-propelled vehicle to form a laterally long traversal anti-slip trace on a road surface. How to form. 4. A coin stamping tooth member having a vertical rib tooth profile or an oblique rib tooth profile is mounted on a self-propelled vehicle to form a square tooth profile or an oblique tooth profile on a frozen road surface.
A method for forming a traversal anti-slip trace on a frozen road surface as described. 5. A coin-printing tooth member having a tooth-shaped surface elastically mounted on the chassis of a self-propelled vehicle so as to be elastically pressed against the road surface; and a coin-printing tooth member long in the road width direction; A frozen road surface traversal anti-slip line forming device, comprising: an elastic pressure releasing means for intermittently releasing the road surface elastic pressure of a member. 6. A stamping tooth member long in the road width direction, which is pivotally supported by a chassis of a self-propelled vehicle so as to be capable of abutting on a road surface; and is disposed above the pivoting mechanism of the stamping tooth member. A fluid pressure cylinder that elastically presses the lower end of the coining tooth member to the road surface through an elastic member to the pivot mechanism; and the pivot mechanism that is brought into contact with the roll cam by rotating the roll cam is intermittent at required timing. An apparatus for forming a frozen road surface traversal anti-slip line mark, comprising: a rotation cam mechanism elastic pressure release means for lifting the road surface to release the road surface elastic pressure. 7. The frozen road surface traversal anti-slip trace forming device according to claim 5, wherein a wide cutting edge is attached as the coining tooth member. 8. The frozen road surface traversal anti-slip trace forming device according to claim 5, wherein a coining tooth member having a vertical rib tooth profile or an oblique rib tooth profile is mounted as the coining tooth member. 9. The frozen road surface traversal anti-slip trace formation according to claim 5, further comprising cam rotation control means for increasing or decreasing the rotation of the roll cam in synchronization with the traveling speed of the self-propelled vehicle. apparatus. 10. A fluid pressure cylinder in which a coining tooth member comprises a plurality of divided tooth bodies arranged side by side in a vehicle width direction at a rear portion of a self-propelled vehicle, and these divided tooth bodies are separately provided via elastic members. 10. An elastic force is applied to the road surface by means of the press-fitting tooth member, which is a set of these divided pieces, so that the elastic force releasing means intermittently releases the road surface elastic force at a required timing. Frozen road surface traversal anti-slip line forming device described.