WO1995026445A1

WO1995026445A1 - Levelling blade with vibrating shoes for making road embankments

Info

Publication number: WO1995026445A1
Application number: PCT/FR1995/000387
Authority: WO
Inventors: Yves Blandin
Original assignee: Yves Blandin
Priority date: 1994-03-29
Filing date: 1995-03-28
Publication date: 1995-10-05
Also published as: FR2718170B1; FR2718170A1; AU2143095A

Abstract

Multifunction auxiliary tool comprised of a levelling blade (1) with vibrating shoes (11) for making road embankments and providing other types of fine grading. The tool is designed to be combined with various units such as adjustable flaps (25), mechanical bucket (58), hydraulic bucket (66) and fine grading means, for transporting, levelling, mixing and compacting with the vibrating shoe (11). Compression means (49) are used to apply pressure on the materials levelled by the blade (1).

Description

blade ^m veleuse a vibrating shoes for the construction of road embankments

The present invention relates to a multifunctional auxiliary tool. A leveling blade with vibrating pads for the construction of embankments, roads and other finishes. 10 The modules "mechanical bucket", "hydraulic bucket", "adjustable shutters," finishing means ", are hooked and keyed to the multi-purpose auxiliary tool.

The technical sector of the invention is the field of public works and the construction of materials for these works.

One of the main applications of the invention is the realization of road embankments, streets, earth dikes, platforms in stabilized soil, 20 medians, small areas and all other civil engineering finishing works.

In order to generally spread a layer of earth, or so-called materials, which is a mixture of sand, earth and small pebbles, the mixed whole is spread out, then compressed and packed by machines compression, compactors.

After consolidation of a layer, thanks to the compression means, another compact layer is placed on the latter, and so on until the formation of a complete embankment.

The fill used for this purpose can be natural earth or mixed with additives forming binders which come from a quarry where the mixtures are made nearby. In the case of small jobs, we use a mini-excavator or a compact loader equipped with several auxiliary units supported by an arrow and an arm with hydraulic means for accessories, backhoe buckets, loader buckets, pallets, clamshell, rock breaker, for example.

To carry out small earthworks, platforms for example, we use backhoe buckets in order to strip and evacuate bad earth which is replaced by all-purpose or gravel left in heaps by trucks.

They are roughly spread out by the loader. Generally, a grader is used for finishing work. The grader by its design is long and shines badly. It often happens that this machine cannot be used because of its size and weight.

However, it is necessary to flatten the materials precisely.

This layer of spread material is in the soft state and it is subjected to the action of compression of tamping and compacting by means designed for this purpose. It will not be considered complete until the density of the layer has reached or exceeded the prescribed and determined values.

The conventional process, described above, involves the use of various machines and the complete execution requires significant time. The problem posed is to make embankments according to the operations described above and according to the design of the invention which is the multifunctional auxiliary tool with a single machine simultaneously: one executes, according to the necessity of the works. The solution to the problem posed is an equipment called blade-leveler with vibrating pads which ensures these operations simultaneously to carry out the earthwork and the construction of pavement, parking lot, nonlimiting examples, by spreading, mixing, grooming, leveling, vibrating and smoothing the transported materials that have been left in a heap.

This auxiliary tool, according to the invention, comprises a chassis in the form of a box containing a hydraulic generation. The chassis at its upper part is connected by bolted plates to a second "U" -shaped chassis allowing horizontal orientation and is held on the machine arm by means of removable pivots. The box-shaped chassis, at its front part, supports a second plate secured to the leveling blade. The latter in its rear part supports an integral vibrating pad which is mounted on slides actuated by hydraulic means mounted on pivots supporting a compression means.

The leveling blade at its ends supports flaps hung on pivots and keyed. They are orientable and dismountable used to retain the materials during spreading. The combinations of the invention allow different variants of the use of the auxiliary tool to perform the work.

A mechanical bucket is hooked and keyed in order to transport the materials and load them into a truck.

But also a second bucket with hydraulic opening making it possible to do several jobs simultaneously: transport the materials with the bucket, open the latter hydraulically and knead, level and vibrate the materials with the auxiliary tool. These different variants are not limiting. It is possible to hang other tools, example a finishing means to finish finishing work, spreading of asphalt on pavement and sidewalk, as non-limiting examples.

All the combinations of the present invention include a box chassis which supports the hydraulic generation actuated by the oil pressure established by the machine pump. The oil is brought into the hoses.

The hydraulic means independent of each other are controlled by the driver who actuates electric manipulators, manually or automatically. The automatic is linked to laser or ultrasound guidance.

According to the invention, the advantageous form of the embodiment and its combinations make it possible to level, tamp and knead the materials simultaneously and to transport them as well as to carry out finishing works. Example: according to the combinations of the invention, the hydraulic means allow the skate to float while keeping a floating pressure with its pressure means, called springs. The schematic drawings shown in Figures 1 to 8 are by way of non-limiting examples.

In the preferred embodiment of the present invention as shown, it can be used on several types of machines: backhoe, loader, backhoe, bulldozer, small sizes or larger sizes.

The auxiliary tool according to the invention, by its technical particularity, its combinations of articulations, and its performance needs only one operator for its operation during the various operations which are carried out to date by at least three machines, one of which is used to load the cuttings, a second to level, and the third to pack the materials.

The auxiliary tool according to the invention brings together four means which are different from each other and independent. : as it moves forward, it sets up the materials, levels them and then compacts them. So one machine instead of three. The finishing means has a fourth function consisting in spreading the materials for finishing the work to be carried out. One could cite other advantages of the present invention, but those mentioned above already sufficiently show the advantage of the novelty.

The embodiment of the invention, the auxiliary equipment supported by the machine are shown by way of nonlimiting example in the accompanying schematic drawings.

Other embodiments are possible from the claims which demonstrate the scope and extent of this invention.

Figure 1 is a side view of the whole machine and its accessories.

The leveling blade is fitted with vibrating pads. The tool is controlled with electric manipulators operated by the driver seated in the machine.

Figure 2 is a side view of the leveling blade separated from the machine. The tool is equipped with flaps hung on the pivots of the blade and keyed in its lower part by a mechanism.

Figure 3 is a side view of the mechanical bucket attached and keyed to the leveling blade.

By a rotational movement, we demonstrate the possibility of loading and emptying the materials. Figure 4 is a side view of the hung and declaved flap provided with its connecting arm for orientation.

Figure 5 is a profile view of bucket with hydraulic closing and opening.

Figure 6 is a top view showing the leveling blade oriented with a trailing angle to the left or right. The hung, keyed shutter is oriented to carry out the work along the edges, the assembly is supported by the machine.

Figure 7 is a side view of the assembly: auxiliary tool plus finishing means which is hooked and keyed. The whole is only a tool. Figure 8 is a top view of the assembly. A machine supports the tool. The leveling blade hung and keyed by means of finishing spreads materials on the sidewalk.

FIG. 1 represents the assembly of a machine called a backhoe supporting said invention. The auxiliary tool is designed with several chassis attached to a leveling blade and vibrating pads attached via the plates. A hydraulic unit makes it possible to operate the hydraulic means independent of each other remotely controlled by the driver who is on the machine. The hydraulic means of the vibrating pad support compression means, called springs, for example.

Said invention relates to the tool: the leveling blade 1 provided with a plate 2 secured to a box-shaped chassis 3 containing a hydraulic generation 4 which actuates the hydraulic means 5 for the horizontal orientation by means of a second plate secured to the second chassis 6 provided with pivots 7 secured to the balance arm 8 which supports a hydraulic means 9 which actuates the connecting rods 10 allowing its range of action to keep the verticality of the blade 1 leveler which supports a shoe 11 provided with a vibrator 12. The shoe is mounted on pivots 13 secured to the hydraulic means 14. The latter support compression means called springs 15. The driver seated on the machine actuates the levers 16 which make it possible to carry out the opening and closing movements 17 with the balance 8 using hydraulic means 9, 18 and 19. The driver synchronizes the movements: The driver synchronizes the movements to have a good planimetry of the work.

The entire tool is controlled by the housing 20 provided with electrical manipulators connected by a cable 21 to the hydraulic unit.

The driver synchronizes the movements to have a good planimetry of the spread materials.

The entire tool is controlled by the housing 20 provided with electrical manipulators connected by a cable 21 to the hydraulic unit 4, the latter being supplied by pipes 22, 23 and hydraulic pumps 24 on the machine.

The dotted lines show the way of carrying out the work with this type of machine shown as an example.

Figure 2 is a side view of the tool separated from the machine. The tool is equipped with adjustable flaps 25 provided with hinges 26 mounted with a pivot 27. The adjustable flap at its rear end is provided with a pivot 28 secured to the arm 29 and a second pivot 30. The flap 25 is secured to a fixing means called a connecting rod 31 at its upper part. It is designed in the form of a hook held by the pivot 32 of the leveling blade. The connecting rod, at its bottom, is designed to be keyed 33. There is a keying device 34 integral with the leveling blade 1. The mechanism is provided with a pressure means 35, which maintains the axis 36. The axis 36, at its lower end, is designed with a particular shape. The leveling blade 1, at its upper end, supports a hydraulic means 37 which is secured to the chassis 3. This chassis, in the form of a box, is secured to the blade 1 by means of plates 38, the latter serving to tilt the leveling blade 1 with hydraulic means 37.

The leveling blade 1, at its rear part, supports slides 39. The leveling blade 1 also supports a hydraulic means 40 mounted on pivots which is integral with a connecting rod 41. The connecting rod 41 has, in its lower part, a pivot

42 which maintains a frame 43 which maintains the shoe 11 by means of the insulators 44. The shoe is provided with vibrators 12.

The shoe 11 is held by the chassis 43 mounted on pivot 45 at its rear part. The chassis is held by a hydraulic means 14, mounted on pivots 13 and 45 this hydraulic means supports a tensioning means 15.

The hydraulic means 14 has a double effect. It makes it possible to pivot 46 the "chassis 43 and shoe 11" assembly on the front pivot 42 of the connecting rod 41.

The connecting rod 41 holds the hydraulic means 14, the compression means 15, the chassis 43, the shoe 11 provided with its vibrator. The assembly is held by the rod 41, integral with the slides 39. This allows the assembly, described above, to descend and rise 47 vertically, according to the action of the hydraulic means 40 integral with the leveling blade 1 .

The design of the combinations described above in the preferred embodiment of the present invention as shown allows by its multiple functions of, for example,: to pivot 46 and descend 47 vertically the assembly, to spread the materials 48 with the leveling blade 1. The driver by the Intermediate manipulators of the housing 20 connected by the cable 21 to the hydraulic generation 4 which is supplied by the disconnected pipes 22 and 23 is shown in this figure. An element of the hydraulic generation 4 has a particular action for the hydraulic means 14 which is to cut the hydraulic pressure controlled by the driver using the manipulators of the housing 20. The hydraulic means 14 is free from any movement and supports the means compression 15, called spring, which allows to exert a constant pressure on the shoe 11 which picks up and vibrates the materials 48, according to the height 49 of the leveling blade.

The height 49 for spreading materials 48 is controlled by the driver on the machine shown in FIG. 1. The tool is supported by the pendulum 8. The chassis 6 is mounted on pivots 7, chassis secured to the box 3 by the intermediate plates 50. In general, said hydraulic means cited in the present invention are known hydraulic means, such as linear cylinders actuated by hydraulic circuits from a power station or hydraulic cylinders, in the preferred embodiment of the present invention as shown. The spreading of the materials 48 can be carried out independently and without the vibration of the materials 48 with the hydraulic means 14. The shoe 11 is raised by a pivoting action 46 on the latter 42.

The reverse of the action is also possible by the action of the hydraulic means 40 which lowers 47 by a few centimeters, for example. The connecting rod 41 lowers all of the hydraulic means 14, the compression means 15, the chassis 43 and the shoe 11 provided with its vibrator 12; this makes it possible to tamp and vibrate the materials 48 with an offset 49 in the height relative to the leveling blade 1.

Figure 3 is a side view of the tool separated from the machine. The drawing shows the attachment movement of the mechanical bucket, advancement 51 towards the hook 31 of the pivot 32 of the leveling blade 1 which raises the tool 52 and performs the rotational movement 53 on the pivot 32. The mechanism 34 keying secures the bucket 54 of the leveling blade 1; it becomes only one tool. The tools in the preferred embodiment of the present invention as shown demonstrate that it is possible to perform one more function, which is that of loading the materials 48 and emptying them according to the movement 55 performed by the hydraulic means 9 integral with the balance 8, movement carried out on the pivot 7 shown in FIG. 1 and by the dotted lines 56 in this FIG. 3.

Figure 4 is a side view showing the flap 25 secured to the rod 31 through the hinge 26 mounted on the pivot 27. The rod 31 demonstrates in the preferred embodiment of the present invention, as it is shown, its hook 57 which by its shape makes it possible to hang on the pivot of the leveling blade 1. The connecting rod 31 has a special shape 58 in order to match the roundness of the leveling blade 1.

Figure 5 is a side view showing the bucket 59 secured to the leveling blade 1; the latter is mounted on pivot 32. A hydraulic means 60 mounted on pivots 61 and 62 allows the opening 63 of the bucket 59 and empties 64 the materials 48 in front of the leveling blade 1; this makes it possible to mix, spread and level after having transported the materials with the bucket 59. The integral assembly of the box 3 is supported by the machine. The drawing shown is an additional function of the invention.

Figure 6 is a top view showing the tool supported by the pendulum 8 secured to the frame 6 via four pivots 7. The frame 6 is in alignment 65 of the work to be performed. The box 3 is secured to the chassis 6 by means of a plate 50.

The hydraulic means 66 mounted on pivots 67 makes it possible to orient 68 the leveling blade 1 secured to the box 3. Simultaneously the action of the hydraulic means 66 makes it possible to orient the flap 25 mounted on hinge 26 with a pivot 27 secured and keyed with the mechanism 34. The arm 29 is mounted on pivots 28 and 30 integral with the flap 25 and the chassis 6.

In the preferred embodiment of the present invention, as shown, the shoe 11 is designed with a particular shape in order to perform work along the edges 69, by way of nonlimiting example.

The shoe 11 secured to the leveling blade 1 by means of the hydraulic means 14 supports the compression means 15, the hydraulic means 14 mounted on pivots 13 and 45 support the compression means 15. The assembly secured to the connecting rods 41 is actuated by hydraulic means 40.

The leveling blade 1 is secured to the box 3 by means of plates 38. The hydraulic means 70, mounted on pivots, 71 and 72 is integral with the box 3. The hydraulic means 70 allows the transverse inclination of the leveling blade 1. In the preferred embodiment of the present invention, as shown , it is possible to carry out spreading work, leveling with a left angle of escape 73, in order to slide the materials 48, knead them and level them and put the surpluses in bead 74. The shape of preferred embodiment makes it possible to reverse the working direction of the machine.

FIG. 7 is a side view showing a finishing means, this is hung on the pivot 32 on the leveling blade 1 and keyed 36 to the axis of the mechanism 34 of the leveling blade 1.

The driver hooks up the auxiliary tool supported by a machine, excavator or loader. The method already described in Figure 3 consists of a forward movement 51 towards the hook 57 which performs a rise 52 to the pivot 32 and pivots 53 the tool in order to key it. The connecting rod 31 has a particular shape 75 in this figure in order to receive a slide 76 secured to the chassis 77 supporting a tilting hopper 78 actuated by the hydraulic means 79. The tilting is demonstrated by the dotted lines 80.

The hopper 78 is provided with hydraulic means 81 for closing and opening the door 82.

The chassis 77 supports a hydraulic means 82 mounted on pivots 83 integral with the steering arms 84 mounted on pivots 85.

The chassis 77 supports a steering mechanism 86 integral with the tracks 87 mounted on pivots 88. The mechanism 86 supports a hydraulic means 89 mounted on pivots 90 and 91 supporting a connecting rod 92 which has the particular shape and is integral with the arms 93 mounted on pivots 94. The arms 93 support a table 95 mounted on pivots 96. The table 95 is provided with adjustment 97 to adjust the thicknesses 98 of materials 48 discharged through the hopper 78 and which will be supplied by the archimedes screws 99. The connecting rod 92 thanks to its particular shape acts as slides for the elevation 100 of the arm 93 mounted on pivots 94. The connecting rod 92 is actuated by the hydraulic means 89.

Figure 8 is a top view showing the finishing means dragged by a loader 101 secured to the auxiliary tools and the finishing means. The chassis 6 is secured to the arm 8 of the loader 101 mounted on pivots 7. The chassis 6 is secured to the box 3 by means of the plates 50. The box 3 is secured to the leveling blade 1 by means of the plates 38. The chassis 77 provided with its slides 76 is integral with the connecting rod 31 hooked to the pivots 32 and keyed 36 to the mechanism 34 shown in the drawing in FIG. 7. The slide 76 allows work to be carried out remotely, (nonlimiting example shown on this drawing) .

The chassis 77 supports the orientation mechanisms 86 102 mounted on pivots 103, the latter is provided with hydraulic means 89 integral with the connecting rods 92 supporting the arms 93 mounted on pivots 94 and 96. The orientation mechanisms 102 also support the hydraulic means 104 which corrects the orientation of the tracks 87 of the finishing means, the latter performs work on a sidewalk delimited by the edges 69 and the wall 105, non-limiting example. The hydraulic means 106 allow the tracks 87 to roll, one on the sidewalk and the other on the roadway at different heights.

The mechanisms mounted on pivots 103, integral with the tracks 87 are oriented by hydraulic means 104 mounted on pivots 107.

A connecting rod 108 supports connection arms 109 mounted on pivots 110.

In the preferred embodiment of the present invention as shown, it is possible to carry out remote spreading works according to the combinations of the invention of the orientation mechanisms 86 and the slides 76 of the connecting rod 92 cited in this figure 8. The present invention provides a set of technical combinations in the eight figures; this is described below and is claimed by way of non-limiting example, in the accompanying schematic drawings. Said invention unknown to date is particularly advantageous and even more versatile and important by the embodiment of the invention.

Claims

1 °. Multifunctional auxiliary tool adaptable to small or large public works machines for transporting, leveling, kneading, tamping, vibrating or spreading materials, having for object the realization of roads or road embankments, streets, earth dikes, platforms forms in stabilized soil and other finishes, characterized in that it forms an assembly associating a leveling blade (1) and a vibrating pad (11), and which can be combined with a mechanical bucket (54), a bucket with hydraulic opening ( 59) or a finishing tool (77) and / or orientable side flaps (25).

2. Multifunctional auxiliary tool according to claim 1, characterized in that it consists of a first box-shaped chassis (3) incorporating a hydraulic unit (4) and supporting the leveling blade (1), this first chassis being articulated on a second chassis (6) itself articulated on the public works machine.

3 °. Multifunctional auxiliary tool according to any one of the preceding claims, characterized in that the leveling blade (1) is equipped at its rear part with connecting rods (41) supporting the support frame (43) of the vibrating pad (11), by through a pivot, compression means (15) allowing the vibrating pad to exert pressure on the materials, and hydraulic means (14) allowing the vibrating pad to be raised, the connecting rods (41) being made integral of the leveling blade by means of vertical slides (39), hydraulic means (40) being provided for raising or lowering the rod-vibrating shoe assembly.

4 °. Multifunctional auxiliary tool according to any one of the preceding claims, characterized in that the shape of the vibrating pad (11) is determined to allow the multifunctional tool to perform work along the edges (69).

5 °. Multifunctional auxiliary tool according to any one of the preceding claims, characterized in that the leveling blade (1) is made integral with the box-shaped chassis (3) by means of a plate (38) making it possible to modify the inclination of the blade by hydraulic means (37).

6 °. Multifunctional auxiliary tool according to any one of the preceding claims, characterized in that the hydraulic unit (4) of the box-shaped chassis (3) actuates hydraulic means (5) ensuring the horizontal orientation of the leveling blade ( 1) by means of a plate secured to the second chassis (6), the latter being provided with pivots (7) secured to an element (8) of the public works machine which supports a hydraulic means (9) actuating connecting rods (10) allowing the verticality of the leveling blade to be preserved.

7 °. Multifunctional auxiliary tool according to any one of the preceding claims, characterized in that the leveling blade (1) comprises at each of its ends a fixing system consisting of a pivot (32) and a device for keying (34) with spring (35) and pin (36) allowing the mounting and securing of accessories designed to hang and unclip.

8 °. Multifunctional auxiliary tool according to claim 7, characterized in that the leveling blade (1) is equipped with lateral flaps (25) which can be swiveled and removed which are fixed by means of a hook (31) and a perforated plate (33) on the one of the leveling blade attachment systems (1).

9 °. Multifunctional auxiliary tool according to claim 7, characterized in that the leveling blade (1) is equipped with a mechanical bucket (54) or a hydraulic opening and closing bucket (59) which is fixed by hooks ( 31) and perforated plates (33) on the fixing systems of the leveling blade (1).

10 °. Multifunctional auxiliary tool according to claim 7, characterized in that the leveling blade '(1) is combined, by means of its fixing systems, with a finishing tool (77) mounted on tracks (87) and whose chassis carries a tilting hopper (78) actuated by hydraulic means

(79), as well as arms (93) mounted on pivots (94) and supporting a table (95) provided with an adjustment system (97) for adjusting the thickness of the materials discharged by the hopper (78) and distributed by Archimedes screws (99) integrated into said table.

11 °. Multifunctional auxiliary tool according to claim 10, characterized in that the finishing tool (77) comprises hydraulic means (104, 106) making it possible to orient the tracks (87) and independently adjust the vertical position of each.

12 °. Multifunctional auxiliary tool according to any one of the preceding claims, characterized in that the whole of the auxiliary tool is controlled by the operator of the public works machine by means of a housing (20) provided with electrical manipulators connected by a cable (21) to the hydraulic unit (4), the latter being supplied by pipes (22, 23) and the hydraulic pump (24) of the machine.