EP3366840A1 - Towed machine intended, in particular, for floor repair and maintenance, and in particular of pavement - Google Patents

Abstract

The invention relates to a machine (1) towed for the repair and / or maintenance of floors, comprising a frame (10) resting on the ground by wheels (11) and a scraper blade (15) intended in particular to distribute a material on the ground and leveling it, said machine (1) comprising first moving means (102, 103, 104, 150) of said scraper blade (15) laterally with respect to the frame (10), the blade scraper (15) having a main blade (151) carrying a swivel counter-blade (154) at a lateral end and a counter-blade (153) slidably movable along said main blade (151), said machine (1) comprising second moving means (155, 157) of the movable counterblade (153).

Description

1. Field of the invention

The invention relates to the field of public works and in particular, but not exclusively, that of the repair and maintenance of pavements.

More specifically, the invention relates to a machine intended in particular to correct the deformations recessed, called flakes, coatings or surfaces on the ground, and in particular roadways.

2. Prior Art

Pavement deflashing aims at correcting the localized deformations of the pavement road surface, and in particular filling holes with a filling material, of the all-out type, to obtain a suitable wearing course, avoiding puddles water and get a better seal.

Conventionally, this leveling operation is carried out manually, one or more operators being at the rear of a dump truck whose bucket is equipped with a hopper for spilling a filling material. Operators work manually to spread and settle the spilled material and thus seal the deformations.

It will be readily understood that this manual operation is relatively long and tedious for the operator or operators.

It also has the disadvantage of mobilizing labor and being of low efficiency.

3. Summary of the invention

The present invention aims to solve these problems of the state of the art by providing a towed machine including for the repair and / or maintenance of floors, said machine comprising a chassis resting on the ground by wheels and a scraper blade intended in particular to distribute a material on the ground and to level it, said machine comprising first means for moving said scraper blade laterally with respect to the frame.

According to the invention, the scraper blade has a main blade carrying a pivoting counter-blade at one lateral end and a movable counterblade sliding along said main blade, said machine comprising second means for moving the counter-blade. moving blade.

Such a machine, intended to be towed by a vehicle, and has a scraper blade to spread and adjust a filling material to fill deformations in the roadway, and restore it to the correct profiles across and in length.

Advantageously, the scraper blade is movable in width relative to the frame to be able to reseal the blobs that are not arranged in the axis of the vehicle pulling the machine.

The scraping blade is equipped with two counterblades, one fixed and the other hydraulic displacement, for example, depending on the width to be resumed.

The mobile scraper blade is intended to come into contact with the ground so as to carry out continuously and automatically, over a large width of the roadway, localized repairs of the latter, that is to say operations of deflagging, to obtain a suitable wearing course, and to avoid the runoff of water on it.

The ability to deport the scraper blade allows the repair of curved portions of roads.

Thus, the implementation of such a slidably movable blade laterally makes it possible to obtain a better quality of work and better performance, and also makes it possible to make this work less painful.

Such a machine is adapted for road rehabilitation (punctual recovery of a slump of the roadway by the implementation of thin materials), but also to delineate the edges of the road and derast the grasses in the paths and alleys, for example.

According to an exemplary embodiment, the first means of displacement of said scraper blade comprise a hydraulic cylinder.

Advantageously, the machine comprises a drawbar to a dump truck or a tractor.

According to an exemplary embodiment, the second displacement means comprise a hydraulic cylinder and a sliding shaft on which the movable counterblade is able to move.

Advantageously, the machine comprises means for adjusting the orientation of the pivoting counter blade.

Advantageously, said scraper blade extends, in a first use position, perpendicular to the axis of advance of said machine.

According to a particular embodiment of the invention, the machine comprises means for rotating the scraping blade about an axis vertical to the ground, so as to be able to orient the scraper blade relative to the axis of advancement of said machine in a second position of use.

The invention also relates to a device for the repair and / or maintenance of roads, comprising a motor vehicle and a machine as described above, which is attached to the vehicle.

According to a particular embodiment of the invention, the device comprises means for raising the machine relative to the ground.

4. Figures

• la figure 1 est une vue, en perspective, d'une machine conforme à l'invention ;
• les figures 2 et 4 sont des vues de côté, gauche et droit respectivement, de la machine de la figure 1 ;
• la figure 3 est une vue arrière de la machine de la figure 1.

Other characteristics and advantages will appear more clearly on reading the following detailed description of a particular embodiment of the invention, given by way of a simple illustrative and nonlimiting example, and the appended drawings, among which:

• the figure 1 is a perspective view of a machine according to the invention;
• the figures 2 and 4 are side views, left and right respectively, of the machine of the figure 1 ;
• the figure 3 is a rear view of the machine from the figure 1 .

5. Detailed description

Different views of a machine according to the invention are illustrated on the Figures 1 to 4 .

Such a machine can be towed by a truck carrying a tipper.

This machine 1 comprises a horizontal frame 10 provided at the front end with a fastening means to a motor vehicle.

In this case, the frame 10 carries a drawbar or drawbar 14 to a motor vehicle having a V-shape.

The frame 10 is mounted on two wheels 11 and supports a platform 12 for an operator equipped with a control panel 13. The control panel 13 carries several hydraulic control levers of the various operating cylinders which will be discussed later, these joysticks being connected to a hydraulic distributor.

The platform 12 has, moreover, railings 18 to secure the use of the machine 1 by an operator.

The position (height) of the frame 10 relative to the wheels 11 can be adjusted by mechanical means or hydraulic cylinders.

In the illustrated embodiment, there are provided screws 19 for manually adjusting the height of the wheels 11 before the use of the machine 1.

The chassis 10 carries on its front part (in this case that intended to be oriented towards the rear of the truck) a scraper blade 15 which is particularly intended for the distribution and leveling of the ground for the filling of holes.

The scraper blade 15 consists of a main blade 151, a counterblade 153 which is slidably movable along the main blade 151 and a counterblade 154 which is pivotally mounted at one end of the blade. main blade 151.

The chassis 10 comprises an arm 101 having on its upper part a cleat or heel 102 for maintaining the inclination of the scraper blade 15 (especially when the latter slides) coming to be housed in a complementary shaped groove situated on the face back of the scraper blade 15 ( figure 4 ).

The arm 101 has, moreover, a guide jaw 103 on its lower part in which is housed a shaft 104 of complementary shape sliding fixed on the rear face of the main blade 151 ( figure 4 ).

The guide jaw 103 of the shaft 104 is equipped with wear shims.

Thus, the scraper blade 15 is movable laterally, that is to say perpendicular to the axis of advance A of the truck and the machine 1.

This displacement of the scraper blade 15 in both directions of the B axis ( figure 1 ) is provided by a hydraulic sliding cylinder 160 integral with the front face of the chassis 10 and the rear face of the scraper blade 15.

We distinguish on the figures 2 and 4 , the fasteners 16 of the sliding cylinder 160 of the scraper blade 15 (the piston of the sliding cylinder 160 being movable along the axis B).

As mentioned above, the scraper blade 15 comprises a counterblade, or cheek, 153 which is slidably movable along the axis B with respect to the main blade 151.

The distance between the counter-blade 153 and the counter-blade 154 can thus be adjusted by the operator, the counterblade 153 being hydraulically displaced according to the width to be resumed (the counterblades 153, 154 are so-called recovery blades ).

The offset of the counter-blade 153 is between 20 cm and 1 m, for example, preferably between 20 cm and 50 cm, in particular 30 cm.

This displacement of the counter-blade 153 is ensured by another hydraulic sliding cylinder 155, which is movable along the axis B, and by a horizontal sliding shaft 157 integral with the main blade 151 on which the counter-blade 153 is able to slide.

We distinguish on the figures 1 and 4 a fastener 155A of the sliding cylinder 155 on the main blade 151.

The counter-blade 154 pivoting is adjustable at an angle of between 35 and 40 °, for example.

To do this, it is articulated on a base 159 secured to the main blade 151. The articulation means comprise rings in which can be threaded a removable shaft 17 ( figures 1 and 2 ).

Furthermore, there is provided on the top of the main blade an adjusting bar 158A having a plurality of holes for adjusting the opening angle of the counterblade 154 ( figure 1 ). A rod 158B is disposed between one of the holes of the adjustment bar 158A and a ring 158C located in the upper part of the counterblade 154 so as to maintain the opening angle of the latter.

It should be noted that the arm 101 comprises a setting mechanism 101A of the angle of inclination α of the main blade according to the work to be performed ( figure 4 ). The scraper blade 15 can thus be tilted forwards or backwards.

It should be noted, moreover, that the main blade 151 and the counter-blades 153 and 154 have wear blades 151A, 153A and 154A respectively interchangeable.

It is therefore understood that the operator can adjust with a lever the lateral position of the scraper blade, and therefore of the main blade 151, and with another lever the distance between the counter- blade 153 and against blade 154 (corresponding to the working width).

It can further manually adjust the orientation of the counterblade 154.

We will now describe the manner in which this machine 1 is used, for the repair of damaged pavements of roads, and in particular for the deflating operations.

In the transport position, the machine 1 is in the raised position. To do this, removable chains (not shown) connect the truck body pulling the machine 1 to the hooks 156 disposed on either side of the machine 1, which allows to lift the machine 1 and its wheels 11 to- above ground

When the truck has arrived in the defective area of pavement, the lifting chains are removed so as to lower the machine 1 until the wheels 11 come into contact with the ground. The operator then climbs on the platform 12 of the machine 1.

The supply of filling material is through a hopper located at the rear of the truck body.

When the operator sees in the roadway a hole or other irregularity, which must be repaired, he evaluates the position and the dimensions of this line, and in particular its width.

If the deformation to be recapped is not disposed in the axis of the truck, it actuates the levers to move laterally the scraper blade 15 relative to the frame 10, and possibly against the blade 153, at the location and to the width of this hole.

The bucket being raised, the filling product is poured into the area to be recapped through the hopper.

The distribution and leveling of the product discharged from the hopper takes place as the truck and the machine 1 are towed along the feed axis A, by the scraping effect provided by the lower edge of the hopper. the wear blade 151A which is substantially flush with the ground.

The width of the scraper blade 15 being greater than that of the hole being filled, the lower edge of the wear blade 151A therefore bears on the undamaged edges of the roadway.

Conventionally, once the patching operation performed, a cylinder allows the compaction of the material in the filled part.

The filler material is level with the surrounding surface after settlement.

The operator can then intervene on another hole of the roadway.

It can therefore be seen that the machine 1 according to the invention makes it possible to treat pavement subsidence locally and over a wide width of the roadway.

This machine 1 is both simple to use and powerful in the amount of work provided, and makes the task less painful for operators (the working comfort is improved).

The implementation of the machine 1 saves labor by requiring only two operators, instead of a team whose manual labor necessarily slow represents a very low yield compared to the mechanized operation allowed by the machine. the invention.

During the deflashing, this machine 1 is towed at a speed below 25km / h, for example.

For its movement from one site to another, this machine 1 can be raised by the implementation of a lifting system of the machine, including the hooks 156.

This machine 1 is thus intended for the rehabilitation of roads but it is also suitable for deligning the edges of the road and deraser grass in paths and alleys, for example.

To do this, the scraper blade 15 is orientable. It can thus be oriented towards the left side or the right side of the frame 10, and be moved laterally along the axis B.

The pivoting of the scraper blade 15 about a vertical axis is ensured for example by a pivot connection (not shown) between the frame 10 and the arm 101 for supporting the scraper blade 15.

The inclined blade collects and deflects / repels the residues (earth, grasses, chippings, ...) to the side when the machine 1 towed moves in the direction of advance A.

In this case, the orientation angle of the scraping blade 15 is between 10 and 60 ° for example, preferably between 20 and 40 °.

In an alternative embodiment, the machine 1 may be equipped with a scraper blade 15 non-steerable.

The invention thus makes it possible to provide professionals, maintenance companies, public works companies, as well as road and community equipment services with a tool that can be used to maintain and even renovate punctually degraded roads.

The scope of the present invention is not limited to the embodiment described above and considered by way of example, but extends instead to modifications within the scope of those skilled in the art.

Other means of moving the machine, such as tracks, and other means for moving the scraper blade can be implemented.

Other forms of scraping blades can be implemented.

The drawbar can be adjustable in height.

The machine of the invention can be towed by other vehicles, including an agricultural tractor.

Claims (9)

Machine (1) towed for the repair and / or maintenance of the ground, comprising a chassis (10) resting on the ground by wheels (11) and a scraper blade (15) intended in particular to distribute a material on the ground and leveling it, said machine (1) comprising first moving means (102, 103, 104, 150) of said scraper blade (15) laterally with respect to the frame (10),
characterized in that the scraper blade (15) has a main blade (151) carrying a swivel counter-blade (154) at a lateral end and a counter-blade (153) slidably movable along said main blade (151). ), said machine (1) comprising second moving means (155, 157) of the movable counterblade (153). Machine (1) according to claim 1, characterized in that the first moving means (102, 103, 104, 150) of said scraper blade (15) comprises a hydraulic cylinder (150). Machine (1) according to claims 1 or 2, characterized in that it comprises a drawbar (14) to a dump truck or a tractor. Machine (1) according to one of claims 1 to 3, characterized in that the second displacement means (155, 157) comprise a hydraulic cylinder (155) and a sliding shaft (157) on which the counter-blade ( 153) mobile is able to move. Machine (1) according to one of claims 1 to 4, characterized in that it comprises adjustment means (158A, 158B, 158C) of the orientation of the counter-blade (154) pivoting. Machine (1) according to one of claims 1 to 5, characterized in that said scraper blade (15) extends, in a first use position, perpendicular to the axis of advance (A) of said machine (1). Machine (1) according to claim 6, characterized in that it comprises means for rotating the scraper blade (15) around a vertical axis relative to the ground, so as to be able to orient the scraper blade (15). ) relative to the axis of advance (A) of said machine (1), in a second position of use. Device for the repair and / or maintenance of roads, comprising a motor vehicle and a machine (1) according to any one of claims 1 to 7, attached to the vehicle. Device according to claim 8, characterized in that it comprises means (156) for raising the machine (1) relative to the ground.

Images