Classifications

• • E—FIXED CONSTRUCTIONS
  • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
  • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
  • E01C19/48—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ
  • E01C19/4833—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ with tamping or vibrating means for consolidating or finishing, e.g. immersed vibrators, with or without non-vibratory or non-percussive pressing or smoothing means
• • E—FIXED CONSTRUCTIONS
  • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
  • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
  • E01C19/22—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for consolidating or finishing laid-down unset materials
  • E01C19/30—Tamping or vibrating apparatus other than rollers ; Devices for ramming individual paving elements
  • E01C19/34—Power-driven rammers or tampers, e.g. air-hammer impacted shoes for ramming stone-sett paving; Hand-actuated ramming or tamping machines, e.g. tampers with manually hoisted dropping weight
  • E01C19/40—Power-driven rammers or tampers, e.g. air-hammer impacted shoes for ramming stone-sett paving; Hand-actuated ramming or tamping machines, e.g. tampers with manually hoisted dropping weight adapted to impart a smooth finish to the paving, e.g. tamping or vibrating finishers
  • E01C19/405—Power-driven rammers or tampers, e.g. air-hammer impacted shoes for ramming stone-sett paving; Hand-actuated ramming or tamping machines, e.g. tampers with manually hoisted dropping weight adapted to impart a smooth finish to the paving, e.g. tamping or vibrating finishers with spreading-out, levelling or smoothing means other than the tamping or vibrating means for compacting or smoothing, e.g. with screws for spreading-out the previously dumped material, with non-vibratory lengthwise reciprocated smoothing beam
• • E—FIXED CONSTRUCTIONS
  • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
  • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
  • E01C19/22—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for consolidating or finishing laid-down unset materials
  • E01C19/42—Machines for imparting a smooth finish to freshly-laid paving courses other than by rolling, tamping or vibrating
• • E—FIXED CONSTRUCTIONS
  • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
  • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
  • E01C19/48—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ
  • E01C19/4866—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ with solely non-vibratory or non-percussive pressing or smoothing means for consolidating or finishing

Definitions

• the present invention relates to a new machine allowing the realization, very quickly, of perfectly flat screeds whatever their length and width.
• a perfectly flat screed for example, that constituting the ground of a tennis court, a track or another set
• the machine of the invention completely solves the problem of producing such screeds without there being any leveling or any other recovery to be carried out after the passage of this machine.
• the machine of the invention makes it possible to produce a screed from the foot of a wall and it makes it possible, in addition, to compensate for differences in flatness or inclination that presents the support on which the screed is poured.
• the machine for the execution of concrete screeds and similar products discharged from a hopper comprises- a frame supporting, by at least two rollers, an endless ply whose width corresponds at least to that of a hopper distributor, means for driving the sheet being provided so that its surface slides on the screed progressively formed during the movement of the frame which carries it.
• Fig. 1 is a perspective of the machine for the execution of concrete screeds and analogous products according to the invention.
• Fig. 2 is a schematic side elevation, partially in section, corresponding to fig.l.
• Fig. 3 is a sectional elevation, on a larger scale, of an embodiment detail.
• Fig. 4 is a partial view similar to FIG. 2 of a variant.
• Fig. 5 is a perspective view from three quarters above illustrating a variant.
• Fig. 6 is a partial side elevation corresponding to the variant of FIG. 5 when it is produced in accordance with FIG. 4.
• the machine shown comprises a chassis 1 which is provided with an axis 2 constituting the axis of rotation of a roller 3.
• the chassis 1 supports, by an articu ⁇ lation 4, pivoting arms 5 which can be controlled by at at least one actuator 6.
• the pivoting arms 5 support a tension roller 7 over which passes an endless ply 8, for example of possibly reinforced rubber, the surface of which is smooth or striated, depending on the aspect which is wishes to confer on a screed 9 to be produced.
• rollers 3 and 7, as well as possibly other rollers which may be provided for applying more or less strongly the endless ply 8 on the screed being formed do not extend over the entire width of the sheet, but leave free, on either side thereof, a segment 8a_ as shown in fig. 3.
• the underside of segment 8a_ of the water table also has, as illustrated in fig.3 a slight slope and is rounded as shown in 8b.
• the end portions 3a_ of the rollers are of progressively decreasing diameter.
• the measures described above are intended to render the joint illustrated at 10 inapparent when two screed parts are poured contiguously as explained below.
• the chassis 1 supports a geared motor 11 for driving a drive roller 12 cooperating with a back pressure roller 13 which are both mounted on arms 14 of the chassis.
• the drive roller 12 and the back pressure roller 13 are driven as illustrated in FIG. 2 to advance the endless ply 8 in the direction of the arrow f.
• the chassis 1 is provided, for example above the roller 3, with a spreading tank 15 which may contain water and / or a varnish product for the surface of the screed being produced.
• the spreading tank is connected by a distributor element 16, for example a felt strip above the endless sheet 8.
• a valve 17 makes it possible to control the flow of water and / or of the varnishing product.
• the chassis 1 is connected by axes 18 to a hopper 19 of width at most equal to that of the sheet 8 and containing the constituents 20 of the yoke 9, for example concrete.
• the hopper 19 is provided with a mixing and closing device 21 making it possible to control the flow of concrete during the formation of the screed and also making it possible to prevent the flow of concrete when the screed must be interrupted.
• An adjustable vibrator 22 is also carried by the chassis and is disposed between the outlet of the hopper 19 and the endless ply 8. To allow the load to be varied by surface unit to be exerted by the endless ply 8, counterweights 23 adjustable along a support 24 are arranged at the ends of the frame 1 which is opposed to the tension roller 7.
• At least one pad 25 is arranged inside the endless sheet to rest on the side thereof which bears on the yoke 9.
• the shoe 25 can be porous to allow air to be blown in order to create a micro-air cushion between the pad 25 and the ply 8.
• the pad 25 is narrower than the ply and its conformation corresponds to that of the rollers, that is to say that the lateral edges of the pad 25 are slightly raised to correspond to the parts 3a of the roller 3 of FIG. 3.
• a trac ⁇ tor element 26 (fig.l and 2) or 27 (fig. 4).
• the tractor element 26 is constituted by a tricycle comprising a gear motor 28 while the tractor element 27 according to the variant of FIG. 4 is additionally provided with a seat 29.
• the steering wheel 30 can be controlled by a handlebar 31 or a steering wheel 32.
• the tractor element can be an integral part of the assembly described above, that is to say that it can be rigidly connected to the hopper 19. It is also pos ⁇ sible, and this is preferred, that the hopper 19 is fitted with coupling means 33, preferably adjustable in height, along a slide 34 and that the tractor element is fitted with coupling bars 35.
• the latter solution is preferred because it makes it possible to reduce the length of the machine by uncoupling the tractor element and dismantling the counterweights 23 as well as their supports 24.
• the driving wheels 36 are provided so that their spacing is less than the width of the endless ply 8.
• the machine works as follows: concrete, or another material, for example a resin loaded with fibers, mineral products or the like, is put in place in the hopper after the trac ⁇ tor element 26 or 27 has been harnessed. Water or another product is placed in the spreading tank 15 and the gear motor 28 of the tractor element is started to drive the machine in the direction of arrow f-, the pilot 37 being arranged , preferably, as illustrated to follow the work of the machine do the movement is obviously very slow.
• the gear motor 11 drives the sheet 8 in the direction of the arrow f ,, that is to say that the strand of this sheet which is in contact with the yoke 9 which is gradually formed and vibrated moves in the same direction as that of the formation of the sheet but, at a higher speed, to ensure the smoothing of said sheet at the same time as the possible addition thereon of a film of water or of another product d 'addition.
• the speed of movement of the ply 8 is independent of that at which this ply is moved by the tractor element 26, 27 and can be synchronized with respect to the latter.
• the machine When a first screed has been deposited, the machine is turned 180 ° or brought back to the starting position, but offset by one step compared to its initial path, which allows a second contiguous screed 9a_ to be poured (fig 3) which is suitably smoothed since the ply 8 covers the joint 10 separating the two yokes; it follows that the surface of the joint is itself smoothed without pressure being exerted on the previously formed screed and therefore without deterioration of this previous screed.
• the chassis 1 is supported by an auxiliary chassis 38, for example in the shape of a U which is articulated by pins 39 on the hopper 19.
• the hopper 19 is supported by pads 40 of which only one is visible in FIG. 5, pads which can be very narrow and which extend so as not to bear on the yoke part 9 which has been formed beforehand.
• the auxiliary chassis 38 comprises means illustrated by a lever 41 making it possible to tilt this auxiliary chassis according to the arrow f_ 2 to lift it and the chassis 1 so as to bring the chassis 38 and possibly 1 into a vertical position, this which allows the outlet of the hopper 19 to come against a wall or another element from which the yoke 9 must be formed.
• the lifting means 41 comprises coupling means 42 connected to wheels 43 making it possible to lift the whole of the machine above the pads 40 for example for transport from one point to another.
• the auxiliary frame 38 comprises a transverse bar 44 with respect to which a sliding bar 45 can be moved 45 carrying by an arm 46 the support 47 of a flexible blade 48.
• the drawing shows that the flexible blade 48 can be moved to be brought into a position for which it covers both at least partially the yoke 9 already cast and the yoke 9 ⁇ in progress.
• the support 47 is carried, on the one hand, by the arm 46 and, on the other hand, by a guide bar 49 which is fixed to the chassis 1 by * a device 50 adjustable in height.
• a guide bar 49 which is fixed to the chassis 1 by * a device 50 adjustable in height.
• the machine comprises, between the spreading tank 15 and the hopper 19, an auxiliary hopper 51 containing an additive product, for example, carbonundum powder or other product giving the screed a particular quality.
• an additive product for example, carbonundum powder or other product giving the screed a particular quality.

Landscapes

• Engineering & Computer Science (AREA)
• Architecture (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Road Paving Machines (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=9336411

Family Applications (1)

Country Status (4)

Families Citing this family (5)

Family Cites Families (2)

• 1986
  • 1986-06-17 FR FR8608742A patent/FR2600091B1/fr not_active Expired
• 1987
  • 1987-06-17 EP EP19870903887 patent/EP0269708A1/de not_active Withdrawn
  • 1987-06-17 WO PCT/FR1987/000224 patent/WO1987007921A1/fr not_active Application Discontinuation
  • 1987-06-17 AU AU75154/87A patent/AU7515487A/en not_active Abandoned

Non-Patent Citations (1)

Also Published As

Similar Documents

Legal Events