JP4149437B2 - Frozen road surface grooving device and method of slicing anti-slip horizontal stripe groove using the grooving device - Google Patents

Description

    The present invention has all fields related to snow removal technology, snow melting technology, etc. as its technical field, and of course the field of manufacturing snow removal vehicles, snow melting vehicles and various devices used therefor, as well as the manufacture thereof From the field of providing and selling the equipment and instruments necessary for the field, the field of providing materials, machinery and equipment, parts necessary for such materials, such as wood, stone, various fibers, plastics, various metal materials, etc. , The field of electronic components incorporated in them, the field of control-related equipment that integrates them, the field of various measuring instruments, the field of power equipment that moves the equipment and instruments, the field of electricity and oil as the energy and energy source In general, the fields generally referred to as industrial machinery, as well as testing and researching those facilities and instruments, and the fields related to display, sales, import / export, and general , The results of their use, the equipment for making them, the fields related to the collection and transportation of garbage generated by the operation of equipment, the recycling field for efficiently reusing these garbage, etc. There are no new technical fields that cannot be envisaged and no unrelated technical fields.

(Points of interest)
In winter, road traffic in mountainous areas, snowfall, cold areas, etc. is crushed by vehicles passing on snowy roads, gradually becomes snow pressure, and the surface of pressure snow melts due to daytime temperature rise and solar radiation. There is a risk that the vehicle may slip down, touch the subfreezing temperature of the compressed snow itself, or refreeze as the temperature drops at night, etc., forming an ice burn, causing the vehicle to slip. In order to prevent this, spike tires and studless tires have been put into practical use. In recent years, studless tires that prevent dust pollution have been widely adopted and spread.

    However, even though studless tires are effective on snowy roads immediately after snowfall, it is difficult to obtain the driving performance of spiked tires on ice roads and road conditions where snow is thinly deposited on ice burns, especially brakes. In order to ensure the safety of such frozen roads, it is necessary to disperse the frozen road surface by spraying snow melting agent or anti-freezing agent, etc. Depending on the type, application location, application time zone, etc., the snow melting effect may not be obtained as expected, and there are concerns about the safety of the snow melting agent to the human body and nature, and the adverse effects on traveling vehicles and houses around the road, In addition, there is a high risk of a slip accident occurring on the medicine spraying vehicle running on the ice burner, and it is necessary to prepare a spraying vehicle dedicated to snow melting agent. Because it is a special work, it is necessary to mobilize specialized personnel and spray it several times at night when freezing is likely to occur, etc. It was a thing.

(Conventional technology)
In order to eliminate such adverse effects, for example, as in the invention of “Frozen Road Surface Cutting Device” disclosed in Japanese Patent Application Laid-Open No. 8-158339, a docking frame is connected to the vehicle body so as to be lowered by its own weight, and is provided between the left and right widths. The main frame is mounted on the support machine frame installed on the front surface of the docking frame by the gauge shoe, and the guide shafts provided on the left and right side of the support frame are fitted to the guide holes established in the support machine frame. Connect and reduce the load of the main frame with a spring material in the push-up direction provided between the guide shaft and the support machine frame, and a substantially horizontal surface with a chain that rotates many cutting blades endlessly on the lower surface side of the main frame Like the one that is supported so as to circulate and rotate along the line, and the “Frozen Road Surface Cutting Work Vehicle” invention disclosed in Japanese Patent Application Laid-Open No. 8-240424, When cutting the ice and snow layer on the surface with a spiral rotating member, the thickness of the ice and snow layer is measured with an ultrasonic distance meter, and the CE cylinder is contracted while the thickness is thicker than a predetermined measurement value. When the cutting edge is shortened, the spiral rotating member is pressed against the road surface to increase the cutting depth. When the thickness of the ice / snow layer is below the set value, the CE cylinder is extended to extend the cutting edge. A device that lifts the spiral rotating member to reduce the cutting depth has already been developed.

The former "frozen road surface cutting device" invention makes contact with the surface of the ice burner on the road surface with substantially equal contact pressure following the road surface inclination and unevenness, and a number of cutting grooves for preventing slipping on the surface of the ice burner. However, since the structure is complicated, there is a disadvantage that it takes a lot of time to repair once it breaks down. The "cutting work vehicle" invention is designed to cut a groove parallel to the traveling direction of the vehicle, and does not lead to an increase in frictional force during braking of a general traveling vehicle. Is accumulated in the direction of travel of the work vehicle, and the work vehicle is stopped at every certain work time and inserted by, for example, being manually operated by the worker himself or by driving the swivel rotation member in reverse. Due to adhesion and deposition Ice and snow that Tsu must be eliminated, there is a disadvantage that worsen the cutting workability of the frozen road surface.
(1) JP-A-8-158339 (2) JP-A-8-240424

(Awareness of problems)
As described above, the conventional frozen road surface cutting device, as described above, has a complicated structure, so if a failure occurs once at night in the severe winter season, rapid repair becomes impossible. Cutting the frozen road surface will not proceed at all, and there may be serious consequences such as frequent slip accidents and inaccessible roads, and cutting the frozen road surface while driving the work vehicle Due to the structure of cutting, a groove parallel to the vehicle traveling direction with respect to the road surface is cut, so that the effect of improving the braking performance of a general vehicle cannot be obtained, and the cutting ice pieces are moved in the traveling direction of the work vehicle. The frequency at which ice and snow adhere to and accumulate on the swivel rotating member is increased, and the work vehicle must be stopped frequently to perform operations such as removing the snow and snow adhering to the worker himself. problem It has a relatively simple structure with few failures, can be repaired easily and quickly, and grooves are cut in the width direction of the road to increase braking friction of ordinary vehicles. In fact, there is a long-awaited development of a new grooving device for a frozen road surface that can be prevented from adhering to the cutting ice piece by removing it to either one or both of the left and right sides.

(Object of invention)
Therefore, in the present invention, the structure is relatively simple so that it can be easily maintained and repaired even under stormy weather, and grooves can be carved in the width direction of the road. Judging whether it is possible to provide a grooving device for frozen roads that can be continuously run over long distances and cut lateral grooves on frozen roads, eliminating the direction, it is very fast to develop and research As a result of starting and repeating trial and error over many years and numerous trial manufactures and experiments, this time, finally, a new structure of grooving device for frozen road surface, and a new anti-slip horizontal stripe groove using it The method has been successfully realized, and the configuration thereof will be described in detail below together with an embodiment representing the present invention shown in the drawings.

  (Structure of the invention)

As clearly understood from the embodiments representing the present invention shown in the drawings, the grooving device for frozen road surface according to the present invention basically comprises the following configuration.
In other words, the height adjustment mechanism that can adjust the approach distance to the road surface and / or the downward pressure adjustment mechanism that can adjust the pressing force to the road surface, and the angle adjustment in the traveling direction as appropriate with respect to the posture centered on the vertical axis perpendicular to the traveling direction It has an angle adjustment mechanism that enables it, and has a long main body frame on the left and right that is fixed to an appropriate position of the vehicle via a detachment mechanism. The main body frame has a pair of sprockets arranged near its left and right ends. open belt shape wound set an endless chain that as may orbiting the orbiting the same vertical plane along the body frame write unnecessarily be Rutotomoni, to the endless chain, the road surface into a plurality place of the outer peripheral side thereof the claw which enables engraved lateral grooves in icy, on which projects outward from the endless chain orbit on, their right and left sprockets least While the or Re is a frozen road surface for Kokumizo device according to subject matter the configuration rotary driving source that gives rotational driving force of Jo Tokoro direction was made to be connected.

In other words, the height adjustment mechanism that can adjust the approach distance to the road surface and / or the downward pressure adjustment mechanism that can adjust the pressing force to the road surface, and the attitude centered on the vertical axis perpendicular to the running direction It has an angle adjustment mechanism that makes it possible to adjust the angle appropriately in the running direction, and has a long body frame on the left and right that is fixed to a vehicle in place via a detachable mechanism, and the body frame has its left and right ends near arranged pair of sprockets wound in open belt-like set of endless chains and as may orbiting the orbiting the same vertical plane along the body frame write unnecessarily be Rutotomoni were, to the endless chain, its on the claw that allows engraved lateral grooves in a plurality place of the outer peripheral side to the road icy, and projecting outward from the endless chain orbit on their right and left spray At least either the ket, it is assumed that the rotation driving source that gives rotational driving force of Jo Tokoro is formed by connecting, by appropriately adjusting the angle and orientation with respect to the car two direction of travel driven to rotate while the vehicle is traveling a plurality of claw of the endless chain, in the process of moving from each vehicle both widthwise end forward in the same direction end rearward, to those formed by the vehicle width direction of the slip prevention horizontal stripes grooves enabling engraved on road icy It becomes the grooving device for frozen road surface.

More specifically, the grooving device for a frozen road surface according to this basic configuration includes an elevation adjustment mechanism that can adjust the approach distance to the road surface and / or a downward pressure adjustment mechanism that can adjust the pressing force to the road surface, and traveling. It is equipped with an angle adjustment mechanism that makes it possible to adjust the angle appropriately in the running direction with respect to a posture centered on a vertical axis orthogonal to the direction, and is arranged and fixed behind the snow removal mechanism of the snow removal vehicle via the attachment / detachment mechanism The main body frame has a long main body frame, and the main body frame can be wound around a pair of sprockets arranged in the vicinity of the left and right ends in an open belt shape so as to circulate in the same vertical plane along the main body frame as a circular track. as the set of endless chains write unnecessarily to Rutotomoni, the claw in the said endless chain, which enables engraved lateral grooves in the road surface icy multiple place of the outer peripheral side thereof, the Mutanchi On which projects outward from over emissions orbit on frozen road surface while at least one of their lateral sprockets, the rotational driving source that gives rotational driving force of Jo Tokoro direction was made to be connected It can be called a grooving device.

(Related invention)
The invention relates to a grooving device for a frozen road surface which forms the basis of the present invention, and a method for slicing a horizontal stripe groove for preventing slip using the same.
In other words, the height adjustment mechanism that can adjust the approach distance to the road surface and / or the downward pressure adjustment mechanism that can adjust the pressing force to the road surface, and the angle adjustment in the traveling direction as appropriate with respect to the posture centered on the vertical axis perpendicular to the traveling direction It has an angle adjustment mechanism that enables it, and has a long main body frame on the left and right that is fixed to an appropriate position of the vehicle via a detachment mechanism. The main body frame has a pair of sprockets arranged near its left and right ends. open belt shape wound set an endless chain that as may orbiting the orbiting the same vertical plane along the body frame write unnecessarily be Rutotomoni, to the endless chain, the road surface into a plurality place of the outer peripheral side thereof the claw which enables engraved lateral grooves in icy, on which projects outward from the endless chain orbit on, their right and left sprockets least While the or Re, with Kokumizo apparatus for freezing road surface rotary drive source was made is connected to provide a rotational driving force of Jo Tokoro, the vertical plane orbit of the endless chain belongs vehicle travel adjust the angle and orientation with respect to a direction appropriate, a plurality of claw of the endless chain to be rotated in the vehicle both traveling in the process of moving from each vehicle both widthwise end forward in the same direction the other end behind the car on the road surface icy This is a method of engraving the anti-slip horizontal stripe groove so that the anti-slip horizontal stripe groove in the width direction can be engraved.

More specifically, the height direction adjustment mechanism that can adjust the approach distance to the road surface and / or the downward pressure adjustment mechanism that can adjust the pressing force to the road surface, and the posture about the vertical axis that is orthogonal to the direction of travel. It has an angle adjustment mechanism that makes it possible to adjust the angle appropriately, and has a long main body frame on the left and right that is fixed to the vehicle in place through a detachable mechanism, and the main body frame is arranged near the left and right ends . a pair of sprockets wound in open belt-like set of endless chains and as may orbiting the orbiting the same vertical plane along the body frame write unnecessarily be Rutotomoni, the said endless chain, the outer peripheral side thereof the claw which enables engraved lateral grooves in the road surface icy multiple place, on which projects outward from the endless chain orbit on, their right and left sprockets Either one can even without using a frozen road surface for Kokumizo device rotation drive source was made is connected to provide a rotational driving force of Jo Tokoro, the vertical plane orbit of the endless chain belongs, The angle posture with respect to the vehicle traveling direction is appropriately adjusted to the angle θ, and the endless chain is rotationally driven at a speed Cv obtained by multiplying the vehicle traveling speed Sv by 1 / sin (90 ° −θ). In the process of moving from one front of the vehicle width direction to the rear of the other end of the vehicle at the same time as the vehicle travels, the anti-slip horizontal stripe grooves are made to be able to be engraved on the road surface ice burn in the vehicle width direction. It can be said that it is an installation method.

More specifically, the height adjustment mechanism that can adjust the approach distance to the road surface and / or the downward pressure adjustment mechanism that can adjust the pressing force to the road surface, and the vertical axis that is orthogonal to the traveling direction are described as specific configurations. It has an angle adjustment mechanism that allows the angle to be adjusted appropriately in the running direction with respect to the posture, and has a body frame that is long on the left and right so that it is fixed to the vehicle in place via a detachable mechanism. set an endless chain that as may circling wound in open belt shape in a pair of sprockets arranged in the vicinity of the left and right ends in the same vertical plane along the body frame as orbit write unnecessarily be Rutotomoni, to the endless chain on the where the claw to enable engraved lateral grooves in the road surface icy multiple place of the outer peripheral side thereof, and projecting outward from the endless chain orbit on They at least either the right and left sprockets, using frozen road surface for Kokumizo device rotation drive source was made is connected to provide a rotational driving force of Jo Tokoro, vertical orbit belongs to the endless chain surface, on the angular orientation is adjusted 60 ° with respect to the vehicle travel direction, the same endless chain is rotated at twice the speed of the vehicle speed, a plurality of claws is the same direction other respectively from the vehicle width direction end forward In the process of moving to the rear end, a slip-preventing horizontal stripe groove is provided on the road surface ice burn so that the anti-slip horizontal stripe groove can be formed in the vehicle width direction.

In other words, the height adjustment mechanism that can adjust the approach distance to the road surface and / or the downward pressure adjustment mechanism that can adjust the pressing force to the road surface, and the attitude centered on the vertical axis perpendicular to the traveling direction It has an angle adjustment mechanism that makes it possible to adjust the angle appropriately in the running direction, and has a long body frame on the left and right that is fixed to a vehicle in place via a detachable mechanism, and the body frame has its left and right ends near arranged pair of sprockets wound in open belt-like set of endless chains and as may orbiting the orbiting the same vertical plane along the body frame write unnecessarily be Rutotomoni were, to the endless chain, its on the claw that allows engraved lateral grooves in a plurality place of the outer peripheral side to the road icy, and projecting outward from the endless chain orbit on their right To at least one's sprocket, using frozen road surface for Kokumizo device rotation drive source was made is connected to provide a rotational driving force of Jo Tokoro, of the endless chain which rotates while the vehicle is traveling a plurality of claw is from each vehicle both widthwise end forward in the process of moving in the same direction end rearward, the vehicle width direction of the slip prevention horizontal stripe groove to allow engraved on road icy, moreover, of the endless chain Appropriate adjustments such as changing the pitch angle of the anti-slip horizontal stripe groove by changing the attitude angle θ with respect to the vehicle traveling direction of the vertical plane to which the orbit belongs , or increasing or decreasing the rotational speed of the endless chain relative to the vehicle traveling speed The slip-striping horizontal stripe groove can be engraved so that any one end in the vehicle width direction is appropriately inclined in the front-rear direction with respect to the traveling direction. It is also possible.

    As described above, according to the grooving device for a frozen road surface according to the present invention, the main body frame having the elevation adjustment mechanism and / or the downward pressure adjustment mechanism and the angle adjustment mechanism is fixed to an appropriate position of the vehicle through the attachment / detachment mechanism. In addition, it has a structure in which an endless chain with a claw projecting so that a lateral groove can be engraved on the road surface ice burner at multiple locations on the outer peripheral side between the left and right sprockets is wound into an open belt. It is possible to efficiently cut the anti-slip horizontal stripe grooves that are substantially orthogonal to the vehicle traveling direction by the working vehicle, and the depth of cutting into the frozen road surface can be adjusted freely, and slip prevention is also possible. It is possible to change the pitch of the horizontal stripe groove in the vehicle traveling direction, or to cut either the left or right end of the anti-slip horizontal stripe groove in a backward inclined state. It is also possible to improve road drainage by forming horizontal stripe grooves according to various situations such as rough road surface, gentle curve, sharp curve, inclined curve, high speed running road surface, etc. It can be easily maintained and repaired even at night or under stormy weather, and it can continue to run for long distances without removing the cutting ice pieces in the vehicle width direction and removing accumulated ice and snow. The excellent feature that the horizontal stripe groove can be cut safely and efficiently on the frozen road surface is obtained.

    Further, according to the method for engraving the horizontal stripe groove for preventing slip on the frozen road surface using the frozen road surface grooving device of the present invention, the endless chain wound around the pair of sprockets arranged on the left and right ends of the main body frame By appropriately adjusting the angle of the vehicle with respect to the traveling direction of the vehicle and rotating the endless chain at a speed appropriately adjusted according to the traveling speed of the work vehicle, The horizontal stripe grooves in the width direction can be cut with an accurate pitch, and the inclination angle of the endless chain with respect to the vehicle traveling direction is adjusted, or the speed of the endless chain is increased or decreased with respect to the vehicle traveling speed, etc. With this adjustment operation, the dominant horizontal stripe groove set to the pitch and the inclination angle according to the road surface conditions such as the up and down slopes and the inclined curve can be cut. It becomes possible, moreover also possible to improve the drainage of the road width direction of the road surface, and which exerts a great effect that it is possible to obtain a certain effect in ensuring the running safety of the vehicle.

In implementing the present invention having the configuration as described above, the best or desirable mode will be described.
The main body frame can be mounted and supported so that the endless chain can be effectively operated at the appropriate place on the work vehicle to be mounted, and the endless chain rotation drive source can also be fixedly supported if necessary. It must be equipped with a detaching mechanism that enables it to be attached to and detached from the work vehicle at an appropriate position, and can adjust the approach distance of the endless chain to the road surface and the pressure contact strength to the road surface Inclination of the endless chain wound between a pair of left and right sprockets with respect to the traveling direction of the work vehicle. It should be equipped with an angle adjustment mechanism that makes it possible to adjust the posture, and each of these mechanisms should be able to be mounted and fixed with sufficient strength to the work vehicle, The frame structure can be made into various structures such as latticed beams, pipes made of steel pipes, steel plates, etc., and cast or forged to roll-over rectangular parallelepiped, polygonal cross-section bar, or monocoque frame. It is.

    The height adjustment mechanism allows the operator to freely adjust and temporarily fix the support height of the endless chain with respect to the work vehicle, or the support height of the endless chain set by the operator in advance while the work vehicle is running. It can be maintained according to the unevenness and inclination of the crossing road surface, or the unevenness and inclination of the road surface are detected appropriately without requiring any operation by the operator, and the endless chain for the work vehicle traveling according to the detection result The function is to enable the support height to be adjusted automatically, and it must be possible to reliably cut the lateral groove with the optimum depth according to the conditions such as the thickness and hardness of the ice burn on the frozen road surface. More specifically, it is desirable to use a hydraulic mechanism or a feed screw mechanism that utilizes a motor or engine output that is supplied with power from a work vehicle, and penetrates the ice burn. Good to assume that sufficient safety measures by the limit switch or a safety valve or the like so as not to damage the road surface of asphalt or the like is subjected to Te.

    The downward pressure adjustment mechanism freely adjusts the pressing force on the frozen road surface of the endless chain according to the hardness of the ice burn so that the desired depth of cut into the ice burn can be obtained without being affected by the road surface condition. The source of the downward pressing force is the gas pressure by the compressor or cylinder, the hydraulic pressure by the hydraulic pump, the elastic force by the spring mechanism, the weight of the body frame attached to its own weight or in place In any case, it is desirable to have a structure that restricts the lowered position or restricts pressurization by a safety valve, a limit switch, or the like so that an excessive load does not work.

    The angle adjustment mechanism allows the endless chain wound between the pair of left and right sprockets to be adjusted as appropriate within a range suitable for the cutting operation with respect to the traveling direction of the work vehicle, and the worker starts the cutting operation. The angle is adjusted in advance and set in advance, or the function enables the operator to remotely adjust the angle appropriately according to various conditions such as the road surface condition during work running, The one where the operator directly adjusts the angle outside the work vehicle, the one that can be remotely operated from the driver's seat at any time, the one that changes the attitude angle according to the change of the steering angle, the road shape information of the car navigation system Based on the above, it is possible to automatically and continuously adjust the attitude angle determined by the program of the mounted microcomputer to be determined to be optimal one after another.

    The attachment / detachment mechanism attaches the main body frame to an appropriate position on the work vehicle with sufficient strength so that it can be attached and detached, and performs the attachment / detachment operation by the operator's operation. It should have a safety mechanism that cannot be removed and installed while the vehicle is running. Specific examples of vehicles to be installed include snow removal trucks, graders, rotary vehicles, snow removal dozers, Or, it is possible to use other special vehicles having sufficient mounting capability, or general vehicles such as trucks, and can have a positioning structure in which the attachment / detachment position can be changed according to the vehicle. It can be said that it is desirable to attach to an appropriate place behind the snow removal blade, the rotary blade, or the like.

    The sprocket winds an endless chain in an open belt shape over a predetermined width, transmits the rotational driving force from the rotational drive source to the endless chain, and presses the endless chain portion that circulates on the bottom side against the frozen road surface. It supports the function of enabling cutting into an ice burner and must be capable of transmitting rotational force and supporting an endless chain with sufficient strength. The mounting structure should be detachable and replaceable, and the distance between the left and right bearings should be adjustable so that the extension of the endless chain can be adjusted. A plurality of small sprockets or rollers that are supported from above toward the road surface can be added. Or it may be a structure capable of transmitting a rotational force from the rotation driving source to the roller.

    The endless chain rotates and moves along the frozen road surface, and a plurality of claws provided on the outer periphery thereof are successively cut into the frozen road surface so that a horizontal stripe groove in the vehicle width direction is formed at a predetermined depth on the surface of the ice burn. In addition, it should be capable of cutting and forming, and should have a strength that can sufficiently withstand the rotational drive source output to the extent that the horizontal stripe groove can be cut in the ice burn. It should have excellent durability and be able to be easily adjusted or replaced when stretched and aged.

    The claw protrudes to multiple locations on the outer circumferential side of the endless chain rotation and cuts into the frozen road surface as the endless chain rotates, allowing the horizontal stripe grooves to be cut on the surface of the ice burner. It can function to be discharged and can be formed integrally with the endless chain, or it can be attached to the attachment part formed on the endless chain so that it can be attached / detached at least. It is desirable that the tip portion to be cut into the metal is made of metal, hard resin, ceramics, etc., which are relatively resistant to wear, and is endless so as to make the pitch of the horizontal stripe grooves for preventing slip in the vehicle traveling direction substantially uniform. It should be arranged at approximately equal intervals along the winding direction of the chain, and a plurality of claws are projected and formed for each claw, and a plurality of strips are formed by one cutting. It can be assumed to be engraved.

The rotation drive source drives at least one of the left and right sprockets in a predetermined direction to drive the endless chain, and the work vehicle has an endless chain wound so as to be inclined at a predetermined angle in the traveling direction of the work vehicle. It functions to drive rotation at a speed that enables cutting of horizontal stripe grooves in the vehicle width direction during traveling, and controls to change the rotational driving speed appropriately according to the attitude angle of the endless chain and the traveling speed of the work vehicle. It is desirable to be able to generate a suitable rotational output by the operator's own operation of driving the work vehicle, or by automatically recognizing the road surface condition or the traveling speed or steering angle of the work vehicle. It is preferable that the cutting angle of the horizontal stripe groove with respect to the vehicle traveling direction can be appropriately changed and adjusted.
In the following, the structure of the present invention will be described in detail together with an embodiment representative of the present invention shown in the drawings.

    FIG. 1 is a front view of the endless chain, FIG. 2 is a front view of a claw, FIG. 3 is a side view of a rotational drive source and an endless chain, FIG. Examples of grader blades 5 and the grooving device for frozen road surface shown in the side view are a height adjustment mechanism 5 that can adjust the approach distance to the road surface, a downward pressure adjustment mechanism 6 that can adjust the pressing force to the road surface, and the traveling direction. An angle adjustment mechanism 7 that can adjust the inclination posture with respect to the snow, and a body frame 2 that is fixed to the rear portion of the snow removal blade B of the grader G via the attachment / detachment mechanism 24. A pair of left and right sprockets 26, 26 each having a bearing portion 25, 25 in the vicinity of both ends on the same imaginary line are incorporated in the main body frame 2, and each of the left and right sprockets 2 , 26, an endless chain 3 projecting claws 31 and 31 that allow a lateral groove M to be engraved on a road ice burner at a plurality of appropriate positions on the outer peripheral side is wound in an open belt shape, and left and right sprockets 26 , 26 is a typical embodiment of the frozen road surface grooving device according to the present invention, in which one of them is connected to a rotational drive source 4 for applying a rotational drive force in a predetermined direction.

    The frozen road surface grooving device 1 includes a rectangular beam-shaped reinforcing beam portion 21 set to have a predetermined left and right length and a rectangular thick plate-shaped or lattice beam-shaped mounting frame portion integrated in a hanging manner on the front surface thereof. 22 and a support collar 23 that extends upward from the center rear portion of the reinforcing beam portion 21 and is bent forward. And a body frame 2 having a detaching mechanism 24 that can be attached to and detached from the rear side chassis of the snow removal blade B of the grader G. A bearing is provided at each of the left and right ends of the mounting frame portion 22. The mechanism portions 25 and 25 and a pair of left and right sprockets 26 and 26 rotatably mounted on the mechanism portions 25 and 25 are provided, and the left sprocket 26 has a rotational drive source fixed to the back surface of the mounting frame portion 22. Rotating shaft of the drive motor 4 of is adapted to be connected is rotated.

    An endless chain 3 is wound around the pair of left and right sprockets 26, 26 in an open belt shape, and nuts 33, 33,... Each of the nut portions 33, 33,... Is formed with a claw 31, 31,... Integrated with a hard blade portion 32 made of super steel, stainless steel, ceramics or a glass fiber resin molded product at the tip. It is assumed that it is screwed to be replaceable.

    For safety and protection, it has a substantially box-like appearance covering the front, left and right sides, and top surface of the endless chain 3 and exposes only the bottom side looping area facing the frozen road surface of the endless chain 3 and cutting into an ice burner. It is assumed that the chain cover 27 is attached to a corresponding portion of the mounting frame portion 22 so as to be detachable.

    Further, a mounting frame portion 22 is formed at an appropriate position of the support flange 23 by generating a pressure suitable for cutting an ice burn using a height adjusting mechanism 5 including a hydraulic mechanism or a feed screw mechanism and a coil spring or hydraulic pressure. It is equipped with a downward pressure adjustment mechanism 6 that urges downward, and an angle adjustment mechanism 7 that can change the support angle of the mounting frame portion 22 around the virtual vertical axis with respect to the support flange 23.

The driving speed Cv of the endless chain 3 by the driving motor 4 is controlled by a feedback type control device (not shown) according to the following formula (1).
Cv = Sv * 1 / sin (90 ° −θ) (1)
Cv: Chain drive speed, Sv: Vehicle travel speed, θ: Chain posture angle The above formula (1) is supplemented with reference to a coordinate diagram schematically showing the operation of the endless chain 3 in FIG. When the work vehicle G in which the posture angle θ is set to travel at a predetermined speed Sv, a right-angled triangle having a base in the vehicle width direction length L of the transverse groove M to be cut is assumed, and the driving speed Cv of the endless chain 3 is When the relationship with the vehicle traveling speed Sv is shown using a trigonometric function, the following equation (2) is obtained.
sin (90 ° −θ) = Sv / Cv (2)

    When the above formula (2) is developed for the driving speed Cv of the endless chain 3, the above formula (1) can be obtained. When the formula (1) is used, for example, the posture angle θ of the endless chain 3 is appropriately set to be predetermined. It is possible to obtain the optimum drive speed Cv of the endless chain 3 when traveling at the vehicle speed Sv, and the automatic control of the rotation speed of the drive motor (rotation drive source) 4 and the shifting operation by the operator are more accurate. It will be a thing.

(Operation of Example)
The frozen road surface grooving device of the present invention having the configuration as described above can be used in the method of engraving the anti-slip horizontal stripe groove on the frozen road surface of the present invention, and the frozen road surface shown in the examples. According to the procedure of using the grooving device 1, the method for engraving the horizontal stripe groove for preventing slip on the frozen road surface in the present invention will be disclosed below.
As shown in FIGS. 4 and 5, the frozen road surface grooving device 1 is attached to the rear part of the snow removal blade B of the grader G via the attachment / detachment mechanism 24, and the claw claw cutting start state in FIG. As shown in the plan view, the attitude angle θ of the endless chain 3 with respect to the traveling direction of the grader G indicated by the white arrow is changed from the front right side to the rear left side by a remote operation from the vehicle interior or a rotation operation outside the vehicle. When set to tilt by 60 °, an automatic control device (not shown) receives an input from an angle sensor provided at an appropriate position or an operator, and executes arithmetic processing according to the following equation (1).
Cv = Sv * 1 / sin (90 ° −θ) (1)
By this calculation processing, the driving speed Cv of the endless chain 3 is automatically set to twice the traveling speed Sv of the grader G, and the snow removal work can be started.

When the grader G is moved on the road surface of the ice burner and starts running at the predetermined speed Sv, the snow removal blade B first pushes and discharges the snow accumulated on the ice burner toward the rear left side of the vehicle, and then drives. The motor 4 is started and the endless chain 3 is started at a driving speed Cv that is twice the vehicle traveling speed Sv. When the rotation is stabilized, the endless chain 3 is brought into contact with the frozen road surface by the height adjustment mechanism 5 and the claw 31 , 31... Are lowered until they are cut into the ice / snow surface to a predetermined depth.
At this time, the downward pressure adjusting mechanism 6 cuts the claws 31, 31,... To an appropriate depth on the frozen road ice surface and exerts an appropriate pressing force that does not reach the road surface asphalt.

    When the incision is started, one claw 31 out of the plurality that moves in the same manner is indicated by a solid line arrow in the schematic plan view of the claw being cut from the right front position in FIG. Next, as shown in the schematic plan view of the state where the vehicle moves toward the left rear at a speed Cv twice the vehicle speed Sv and the claw claw cutting is finished in FIG. One transverse groove M for preventing slip that is substantially orthogonal to the direction is engraved. Similarly, a plurality of claws 31, 31,... Operate continuously at equal intervals, thereby freezing. On the road surface, as shown in the plan view of the frozen road surface in which the horizontal stripe grooves in FIG. 10 are formed and the plan view of the cutting operation state of the horizontal stripe grooves in FIG. 11, a plurality of horizontal stripe grooves M, M,. It will be formed at equal intervals.

    Even when the posture angle θ of the endless chain 3 with respect to the vehicle traveling direction is set to an angle other than 60 °, the horizontal stripes which are orthogonal to the vehicle traveling direction by setting the drive speed Cv according to the above equation (1). Grooves M, M,... Can be formed, and the ice and snow notched by the claws 31, 31,.

    Further, when the attitude angle θ of the endless chain 3 with respect to the traveling direction of the vehicle is set to 60 ° in the left-right direction, the claws 31, 31,... Are driven from the left front of the vehicle G toward the right rear. However, it is possible to cut the horizontal stripe grooves M, M,... Similar to FIG. 10 at equal intervals by driving at the driving speed Cv according to the above formula (1). The ice pieces are discharged to the right side with respect to the vehicle traveling direction.

    Assuming that the attitude speed θ of the endless chain 3 with respect to the vehicle traveling direction is set to 60 ° and the driving speed is set to be higher than the driving speed Cv of the endless chain 3 obtained by the above equation (1), FIG. As shown in the plan view of the horizontal stripe groove whose right end is inclined rearward, the right end side is inclined rearward with respect to the traveling direction of the work vehicle G indicated by the white arrow in FIG. When the driving speed is lower than the driving speed Cv of the endless chain 3 obtained by the above formula (1), the horizontal stripe groove in which the right end in FIG. 13 is inclined forward is set. As shown in the plan view of FIG. 13, the right end is inclined forward with respect to the traveling direction of the vehicle G indicated by the white arrow in FIG. 13, and the pitch between the horizontal stripe grooves M, M,. Become.

    In this way, the horizontal stripe grooves M, M inclined to the left or right by appropriately operating the attitude angle θ of the endless chain 3 with respect to the traveling direction of the grader G, the traveling speed Sv of the work vehicle G, and the chain driving speed Cv. , ... and various changes and adjustments in the pitch interval in the traveling direction of the vehicle G, and the horizontal stripe grooves M, M, etc. of patterns according to road surface conditions such as uneven roads, undulating roads, sharp curves or inclined curves ...... can be engraved.

    Further, after cutting back on the frozen road surface over a long distance and returning, the claw claws 31, 31,... Of the endless chain 3 are inspected, and the hard blade portions 32, 32,. When the claw 31 is found, the performance equivalent to that of the new endless chain 3 can be recovered by removing the claws 31, 31,... From the nut portions 33, 33,. In addition, the endless chain 3 and sprockets 26 and 26 can be easily and quickly replaced by removing the chain cover 27. Even in such a case, the repair work can be completed in a short time, and it is possible to immediately go out to snow removal and frozen road surface cutting work.

(Effect of Example)
In addition to the features described in the section of the effect of the present invention, the frozen groove surface grooving device 1 of the embodiment having the above-described configuration is mounted on the rear part of the snow removal blade B with the mounting target as a grader G. Therefore, it is possible to cut the horizontal stripe grooves M, M,... On the surface of the exposed ice burn at the same time as removing snow on the ice burn by a single run. What used to run a snow melting agent or antifreeze spraying vehicle after snow removal work eliminates the need for such redundant work, and completes antiskid work without the use of snow melting agents or antifreezing agents. In addition to being efficient and economical, it is possible to prevent slip accidents on spraying vehicles such as snow melting agents that run on ice burns, which has been frequent, and safer snow removal work. Ukoto become what can.

Further, by controlling the driving speed Cv of the endless chain 3 using the following expression (1) associated with the attitude angle θ of the endless chain 3 and the traveling speed Sv of the work vehicle G, It is possible to engrave horizontal stripe grooves M, M,.
Cv = Sv * 1 / sin (90 ° −θ) (1)

Further, if the attitude angle θ of the endless chain 3 is set to 60 °, the chain driving speed Cv is always set to be twice the traveling speed Sv of the work vehicle G under the condition of the above formula (1). When the grader G accelerates or decelerates according to the surrounding traffic conditions, the same horizontal stripe grooves M, M,... Can be continuously cut without changing the cutting angle and pitch.
Furthermore, when the chain driving speed is set to be faster or slower than the chain driving speed Cv obtained by the above formula (1), the chain posture angle θ and the chain driving speed Cv are set regardless of the above formula (1). When appropriately set, etc., the horizontal stripe grooves M, M,... With the right end side inclined rearward with respect to the traveling direction of the work vehicle G, or the horizontal stripe grooves M, M,. It is possible to engrave a variety of horizontal stripe grooves M, M,..., Etc., with the pitch between the horizontal stripe grooves M, M,. The advantage that the braking performance can be ensured and the drainage direction can be set appropriately can be obtained.

(Conclusion)
As described above, the grooving device for frozen road surface according to the present invention and the method of slicing the anti-slip horizontal stripe groove using the slicing device make it possible to achieve the intended purpose evenly by the novel configuration, A relatively simple structure that is easy to manufacture and greatly improves the maintainability of snowplows that are frequently used during the harsh winter and late at night, enabling quick response to sudden failures and more reliable snow removal. In addition to being able to carry out the work, there is no great restriction on the target vehicle, so it is easy to cope with in an emergency, and by installing it on the snow removal vehicle, it can perform anti-slip treatment at the same time as snow removal work, and also a snow melting agent It is not only necessary to run a spraying vehicle, so it can be performed far more safely and economically than conventional snow removal and snow melting work, but also the adverse effects on the natural environment and human body caused by the spraying of chemicals From becoming shall be able to dispel also, are highly valued from each public organizations and national and prefectural governments and municipalities to manage the road, use over a wide range, it is expected to be those that continue to spread.

The drawings show a typical embodiment that embodies the technical idea of the icing device for frozen road surface according to the present invention and the method for forming the anti-slip horizontal stripe groove on the frozen road surface. It is a front view which shows the shape of an endless chain. It is a front view which expands and shows the winding range to the sprocket of an endless chain. It is a side view which shows a drive motor and an endless chain. It is a side view showing a snow removal vehicle equipped with a frozen road surface grooving device. It is a side view which shows the grooving device for frozen road surfaces with which the snow removal blade was mounted | worn. It is a schematic diagram which shows the speed ratio of an endless chain and a working vehicle. It is a top view which shows the cutting start state of a claw. It is a top view which shows the state in the middle of cutting of a claw. It is a top view which shows the cutting completion state of a claw. It is a top view which shows the cutting state of the horizontal stripe groove | channel on a frozen road surface. It is a top view which shows the snow removal vehicle which cuts a horizontal stripe groove | channel with driving | running | working. It is a top view which shows the horizontal stripe groove | channel where the left end inclined back. It is a top view which shows the horizontal stripe groove | channel where the right end inclined backward.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Frozen road surface grooving device 2 Main body frame 21 Same reinforcement beam part 22 Same mounting frame part 23 Same support collar part 24 Same attachment / detachment mechanism 25 Same bearing mechanism part 26 Same sprocket 27 Same chain cover 3 Endless chain 31 Same claw 32 Same Hard blade part 33 Same nut part 4 Drive motor (rotation drive source)
5 Height adjustment mechanism 6 Downward pressure adjustment mechanism 7 Angle adjustment mechanism G Grader B Snow removal blade M Horizontal groove (horizontal stripe groove M, M, ...)
L Length in the width direction of the horizontal groove θ Chain posture angle Cv Chain drive speed Sv Vehicle travel speed

Claims (7)

A height adjustment mechanism that can adjust the approach distance to the road surface and / or a downward pressure adjustment mechanism that can adjust the pressing force to the road surface, and an angle that can be adjusted appropriately in the traveling direction with respect to a posture that is centered on a vertical axis that is orthogonal to the traveling direction. The main body frame has a long main body frame that is fixed to an appropriate position of the vehicle through a detaching mechanism, and the main body frame has a pair of sprockets arranged near the left and right ends of the open belt. Jo the wound set an endless chain that as may orbiting the orbiting the same vertical plane along the body frame write unnecessarily be Rutotomoni, to the endless chain, road icy multiple place of the outer peripheral side thereof the claw which enables engraved lateral grooves, on which projects outward from the endless chain orbit on at least one of their lateral sprockets Write, the frozen road surface for Kokumizo apparatus characterized by rotary drive source for providing rotational drive force of Jo Tokoro direction was made to be connected. A height adjustment mechanism that can adjust the approach distance to the road surface and / or a downward pressure adjustment mechanism that can adjust the pressing force to the road surface, and an angle that can be adjusted appropriately in the traveling direction with respect to a posture that is centered on a vertical axis that is orthogonal to the traveling direction. The main body frame has a long main body frame that is fixed to an appropriate position of the vehicle through a detaching mechanism, and the main body frame has a pair of sprockets arranged near the left and right ends of the open belt. Jo the wound set an endless chain that as may orbiting the orbiting the same vertical plane along the body frame write unnecessarily be Rutotomoni, to the endless chain, road icy multiple place of the outer peripheral side thereof the claw which enables engraved lateral grooves, on which projects outward from the endless chain orbit on at least one of their lateral sprockets Write to is intended to rotary driving source that gives rotational driving force of Jo Tokoro is formed by connecting a plurality of the endless chain to be driven to rotate while the vehicle travels by appropriately adjusting the angle and orientation with respect to the car two direction of travel claw is in the process of moving from each vehicle both widthwise end forward in the same direction end rearward, and characterized in that a made by the vehicle width direction of the slip prevention horizontal stripes grooves enabling engraved on road icy A grooving device for frozen road surfaces. A height adjustment mechanism that can adjust the approach distance to the road surface and / or a downward pressure adjustment mechanism that can adjust the pressing force to the road surface, and an angle that can be adjusted appropriately in the traveling direction with respect to a posture that is centered on a vertical axis that is orthogonal to the traveling direction. to comprise an angle adjusting mechanism, located behind the snow mechanism of snow vehicle via a detachable mechanism, has a long body frame and to be fixed horizontally, the body frame, near its left and right ends arranged pair of sprockets wound in open belt-like set of endless chains and as may orbiting the orbiting the same vertical plane along the body frame write unnecessarily be Rutotomoni were, to the endless chain, the outer periphery the claw which enables engraved lateral grooves multiple place to road icy side, on which projects outward from the endless chain orbit on their lateral Supuro Tsu bets on at least one is frozen road surface for Kokumizo device rotary driving source that gives rotational driving force of Jo Tokoro is characterized in that the one formed by connected. A height adjustment mechanism that can adjust the approach distance to the road surface and / or a downward pressure adjustment mechanism that can adjust the pressing force to the road surface, and an angle that can be adjusted appropriately in the traveling direction with respect to a posture that is centered on a vertical axis that is orthogonal to the traveling direction. The main body frame has a long main body frame that is fixed to an appropriate position of the vehicle through a detaching mechanism, and the main body frame has a pair of sprockets arranged near the left and right ends of the open belt. Jo the wound set an endless chain that as may orbiting the orbiting the same vertical plane along the body frame write unnecessarily be Rutotomoni, to the endless chain, road icy multiple place of the outer peripheral side thereof the claw which enables engraved lateral grooves, on which projects outward from the endless chain orbit on at least one of their lateral sprockets Write, the use of a freezing road for Kokumizo device rotation drive source was made is connected to provide a rotational driving force of Jo Tokoro, the vertical plane orbit of the endless chain belongs, to the vehicle traveling direction the angle posture appropriately adjusted, a plurality of claw of the endless chain to be rotated in the vehicle both traveling in the process of moving from each vehicle both widthwise end forward in the same direction end rearward, the vehicle width direction to the road icy An anti-slip horizontal stripe groove engraving method characterized in that the anti-slip horizontal stripe groove can be engraved. A height adjustment mechanism that can adjust the approach distance to the road surface and / or a downward pressure adjustment mechanism that can adjust the pressing force to the road surface, and an angle that can be adjusted appropriately in the traveling direction with respect to a posture that is centered on a vertical axis that is orthogonal to the traveling direction. The main body frame has a long main body frame that is fixed to an appropriate position of the vehicle through a detaching mechanism, and the main body frame has a pair of sprockets arranged near the left and right ends of the open belt. Jo the wound set an endless chain that as may orbiting the orbiting the same vertical plane along the body frame write unnecessarily be Rutotomoni, to the endless chain, road icy multiple place of the outer peripheral side thereof the claw which enables engraved lateral grooves, on which projects outward from the endless chain orbit on at least one of their lateral sprockets Write, the use of a freezing road for Kokumizo device rotation drive source was made is connected to provide a rotational driving force of Jo Tokoro, the vertical plane orbit of the endless chain belongs, to the vehicle traveling direction The angle posture is appropriately adjusted to the angle θ, and the endless chain is rotationally driven at a speed Cv obtained by multiplying the vehicle travel speed Sv by 1 / sin (90 ° −θ). In the process of moving from one front of the vehicle width direction to the rear of the other end in the same direction, the anti-slip horizontal stripe groove in the vehicle width direction can be engraved on the road surface ice burn. Engraving method. A height adjustment mechanism that can adjust the approach distance to the road surface and / or a downward pressure adjustment mechanism that can adjust the pressing force to the road surface, and an angle that can be adjusted appropriately in the traveling direction with respect to a posture that is centered on a vertical axis that is orthogonal to the traveling direction. The main body frame has a long main body frame that is fixed to an appropriate position of the vehicle through a detaching mechanism, and the main body frame has a pair of sprockets arranged near the left and right ends of the open belt. Jo the wound set an endless chain that as may orbiting the orbiting the same vertical plane along the body frame write unnecessarily be Rutotomoni, to the endless chain, road icy multiple place of the outer peripheral side thereof the claw which enables engraved lateral grooves, on which projects outward from the endless chain orbit on at least one of their lateral sprockets Write, the use of a freezing road for Kokumizo device rotation drive source was made is connected to provide a rotational driving force of Jo Tokoro, the vertical plane orbit of the endless chain belongs, to the vehicle traveling direction In the process of adjusting the angle posture to 60 ° and rotating the endless chain at a speed twice the vehicle speed so that the plurality of claws move from the front end in the vehicle width direction to the rear end in the same direction. An anti-slip horizontal stripe groove engraving method characterized in that an anti-slip horizontal stripe groove in the vehicle width direction can be engraved on a road surface ice burn. A height adjustment mechanism that can adjust the approach distance to the road surface and / or a downward pressure adjustment mechanism that can adjust the pressing force to the road surface, and an angle that can be adjusted appropriately in the traveling direction with respect to a posture that is centered on a vertical axis that is orthogonal to the traveling direction. The main body frame has a long main body frame that is fixed to an appropriate position of the vehicle through a detaching mechanism, and the main body frame has a pair of sprockets arranged near the left and right ends of the open belt. Jo the wound set an endless chain that as may orbiting the orbiting the same vertical plane along the body frame write unnecessarily be Rutotomoni, to the endless chain, road icy multiple place of the outer peripheral side thereof the claw which enables engraved lateral grooves, on which projects outward from the endless chain orbit on at least one of their lateral sprockets Write, the use of a freezing road for Kokumizo device rotation drive source was made is connected to provide a rotational driving force of Jo Tokoro, a plurality of claw of the endless chain which rotates while the vehicle is traveling , in the process of moving from each vehicle both widthwise end forward in the same direction end rearward, the vehicle width direction of the slip prevention horizontal stripe groove to allow engraved on road icy, moreover, vertical orbit of the endless chain belongs Change the attitude angle θ of the surface with respect to the vehicle travel direction as appropriate to change the pitch of the anti-slip horizontal stripe grooves, or increase or decrease the rotational speed of the endless chain relative to the vehicle travel speed to adjust the vehicle width direction. An anti-slip horizontal stripe groove engraving method characterized in that the anti-slip horizontal stripe groove can be engraved so that one of the ends is appropriately inclined in the front-rear direction with respect to the traveling direction.

Images