FR2606051A1 - ENGINE OF PUBLIC WORKS FOR THE PRODUCTION OF TRENCHES - Google Patents

Abstract

EARTHWORKS. MACHINE, OF THE TYPE INCLUDING A SELF-PROPELLED VEHICLE, A CAPACITY INTENDED TO RECEIVE CLEARANCE, A VACUUM FOR SUCKING CLEARING AND DUMPING THEM INTO THE CAPACITY AND A GROUND WORKING TOOL CHARACTERIZED IN THAT THE SELF-PROPELLED VEHICLE HAS SIDE SIDE A SIDE ONE END TILTING IN A VERTICAL PLANE ON AN AXIS 47 SENSITIVELY PERPENDICULAR TO THE LONGITUDINAL AXIS OF TROLLEY 1 AND THE OTHER END OF WHICH IS PROVIDED WITH MEANS FOR SELECTIVELY RECEIVING A TOOL, CORRESPONDING TO THE WORK TO BE CARRIED OUT, OF THE MEANS TILTING OF THE ARM, MEANS FOR COMMANDING THE MODIFICATION OF THE ANGULAR POSITION OF THE TOOL, MEANS TO MOVE ARM 48 FROM THE CORRESPONDING SIDE SIDE OF THE TROLLEY 1.

Description

The present invention relates to a machine for

  public to carry out trenching

  in the streets of towns or villages, that is to say

  mount the coverings, dig trenches,

  remove the cuttings and proceed with the embankment. The prior art knows (see patent GB 1 398 983) an excavating machine which comprises a tool

  rotating system capable of traversing the floor covering, a

  positive suction device for clearing cuttings formed by the tool, a vehicle supporting a reservoir for receiving cuttings, means for anchoring the vehicle to the ground and motors for operating the rotary tool and the suction device. Such a machine only allows to drill excavations in roadways, but can not be used on sidewalks because of its size and weight and can not under any circumstances to achieve

sliced continuously.

  One of the aims of the present invention is to provide a machine that can be used everywhere, also on sidewalks, narrow streets, roadways, etc. The machine according to the invention is of the type comprising a self-propelled vehicle, a capacity intended to receive the cuttings, a vacuum cleaner to suck the cuttings and to dump them in the capacity and a tillage tool and is characterized in that the vehicle self-propelling device comprises laterally an arm mounted by a tilting end in a vertical plane on an axis substantially perpendicular to the longitudinal axis of the carriage and the other end is provided with means for selectively receiving a tool corresponding to the work to be performed, means being provided for controlling the tilting of the arm, means for controlling the modification of the angular position of the tool, means for moving the arm away from the corresponding lateral side of the carriage. With such an arrangement we realize a simple machine that can move as and when work. According to a constructive characteristic, the tilting axis of the arm is carried by a movable slide

  in slides of the self-propelled vehicle perpendicular-

  longitudinal axis thereof, a jack being inserted between said vehicle and the slider to control

the displacement of it.

  According to another contructive characteristic, a jack is inserted between the slide and a tab of the free end of the arm to control the tilting

in a vertical plane of said arm.

  According to another characteristic of detail, the free end of the arm comprises a yoke and under said arm is fixed the body of a cylinder whose piston rod is terminated by a yoke, the tool comprising a support

  S15 intended to be inserted between the wings of said yokes and

  holes for the passage of pins through the wings

said screeds.

  According to a particular embodiment, the tool is constituted by a cutter formed of a sleeve driven by a motor fixed on the support and comprising

  along said free end of the teeth said sleeve

  Laterally bearing a first set of inclined teeth

  towards the free end and located tangentially

  port at the periphery of the sleeve, and at least a second series of teeth arranged in a plane perpendicular to

  the axis of the sleeve and tangentially with respect to the

  of the latter, the direction of rotation of the cutter being such that the free ends of the teeth of the first and

  of the second series are located behind.

  In order to allow to attack the coatings

  made of concrete, the tool is made up of a set capable of breaking

  the concrete and formed of a frame connected to the support by vibration dampers and hammers set

in the frame.

  To enable roadways to be attacked in bitu-

  me, the tool is constituted by a circular saw driven by a motor and provided with a base pierced with a slot for the passage of the saw, said base being connected to the

  support by vibration dampers.

  The machine can also be used to compact the soil when the trench is closed and it can receive a tool consisting of a sole supporting a vibrator and

  connected by vibration dampers to the support.

  In order to extract the cuttings during digging, the cutter sleeve is connected by a pipe

  flexible to the capacity which is itself connected to the aspirator.

  a vacuum cleaner driven by the vehicle engine.

  According to a constructive detail, the capacity is closed by a tight cover mounted tilting on the vehicle and in which opens a pipe connected to the suction of the vacuum cleaner and a flexible tube connected to the sleeve of the cutter. Preferably, the tilting of the lid is

controlled by a jack.

  In order for the capacity, when full, to be replaced by another, the vehicle

  means for laying down the capacity.

  According to a constructive feature, the vehicle comprises a platform on which the

  capacity and two arms arranged, on both sides,

  ci and mounted in the vicinity of a pivoting end on

  axes on the vehicle, the axles extending substantially

  perpendicular to the longitudinal axis of the vehicle, said arms being at their other end terminated by a fork

  cooperating with a corresponding nipple of the upper part

  capacity and cylinders inserted between

  the arms and the platform to control their tilting.

  The vehicle comprises means for allowing the capacity to be tipped to empty it. So we can use the same capacity that can be simply emptied

when it is full.

  According to a constructive detail, the platform comprises a removable stop located in the vicinity of its rear end. The means to switch

  the capacity are thus very simple.

  The machine can also be used to empty the cuttings in the trench when it has to be

  closed and the vehicle has a chute at the rear-

  removable, the capacity then being reversed in the chute.

  The invention will now be described in more detail with reference to a particular embodiment given by way of example only and represented in the accompanying drawings, in which: FIG. 1 is a perspective view of a machine,

according to the invention.

  Figure 2 schematically shows a part

the installation of the machine.

  Figure 3 shows in elevation to a larger

ladder mounting the arm.

  Figure 4 shows partially in section the

the arm support.

  Figure 5 shows the training mechanism

strawberry.

  Figure 6 shows on a larger scale in elevation

the strawberry.

  Figure 7 is a bottom plan view of

the cost of Figure 6.

  Figure 8 shows the use of the machine, according to

  the invention for pouring earth into a trench.

  Figure 9 and Figure 10 are respective views.

  in elevation and plan of an adaptable tool on the

arm of the craft.

  Figure 11 and Figure 12 are views respectively of

  elevation and plan of another adaptable tool

on the arm of the craft.

  Figure 13 is an elevational view of still

  another adaptable tool on the arm of the machine.

  The machine represented in the different figures is

  consisting of a vehicle such as a self-propelled

  on four wheels 2, of which at least the rear wheels are

  drive, while the front wheels are steered.

  The machine may comprise a cabin 3 provided with a seat for the driver and various organs

  for the control of the various devices that it comprises.

  The self-propelled carriage 1 is provided with its part

  back of a platform 5 on which a

  6 closed by a tight cover 7. The latter is

  té by an axis 8 secured to the cabin and its opening and closing are controlled by a jack 16. The capacity comprises two stubs 10 offset

  angularly 180 and with which cooperates

  11 of two arms 12 pivoted on axes 14 carried by lugs 15 secured to the lateral sides of the platform 5. There is provided at the rear of the platform a stop 13 formed by a U-shaped arch the extremes

  tees are engaged in corresponding holes

  respondents. The ends of the arms 12 opposite those having the forks 11 are each provided with an axis

  19 to which is connected the rod 20 of the piston of a jack 21.

  It is thus possible to switch the capacity 6 to empty it.

  It can also easily be replaced by another.

  FIG. 2 schematically shows in detail the arrangement of the carriage 1. This comprises a motor 25 which drives a pump 26 for feeding

  different hydraulic cylinders, as will be explained

  later in the description. The motor 25 drives

  also a vacuum cleaner 28 connected by a flexible tube 29 to the lid 7 with interposition of a filter 30, comprising a filter element 31 and a hatch 32 to empty

  the filter and clean or change the filter body 31.

  In the capacity 6 extends a sieve 35 and in

  the lid 7 is arranged a spiral portion 36 engen-

  cyclone effect and connected to a flexible hose 37.

  The tube 29 and the hose 37 are connected to the lid

  7 through fittings 39 and 40 respectively for

  put them apart from the lid. The vacuum cleaner 28 is

  provided with a discharge pipe 41 for rejecting

the air sucked in.

  On one of the lateral sides of the carriage 1 is provided a slide in which slides a slider

  perpendicular to the longitudinal axis of the chain.

  1 and controlled by a hydraulic cylinder 46, said collar

  slab carrying at its free end an axis 47 on the one

articulates an arm 48.

  The slider 45 carries a second axis 49 on which is mounted the free end of the body 51 of a jack whose free end of the rod 50 of the piston is connected to an axis 52 carried by a lug 53 secured to the end free of the arm 48. It is thus possible to control the lowering and raising of the b-s 48 and also to move it away and bring it selectively closer to the corresponding lateral side of the

trolley 1.

  The arm 48, at its free end, is terminated by a yoke 56 whose wings are pierced with a hole for

the passage of a pin 57.

  Under the arm 48, at an intermediate point along its length, there is provided a yoke 62 traversed by an axis 61 on which the free end of the body articulates a hydraulic cylinder whose piston rod 65 is

completed by a clevis 66.

  The yokes 56 and 66 are intended to receive

the support 70 of a tool.

  Figures 5, 6 and 7 show in detail a

tool that is a strawberry 80.

  The tool comprises a support 70 having a tab 71 with two holes 72 and 73. The hole 72 is intended to receive the pin 57, the latter being aligned with the holes of the yoke 56, while the hole 73 is intended

  to fit between the wings of the clevis 66 and to be traversed

  se by a pin 69 passing through said wings of the yoke 66. It is conceivable that the cylinder 60 thus allows to modify

  the angular position of the tool 80.

  The support 70 carries a motor 75 which can be a heat engine, a hydraulic motor or other and on

  the output shaft 79 which is wedged a pinion 76 which

  drags a toothed ring 77 guided on a sleeve 81 solidi-

  the free end of the hose 37.

  The ring 77 drives through a sleeve 82 the milling cutter 80, with the interposition of bearings 78 of joints

83 and a stop 84.

  The cutter 80 is made from a sleeve whose open bottom end is bordered by teeth 86. The cutter 80 is still provided with a second series

  of teeth 87 which are inclined substantially at 45 with respect to

  port to the longitudinal axis of the sleeve and extend sensitively

  tangentially in relation to it. Finally,

  the cutter 80 further comprises two rows of teeth 88, each

  that row being located in a plane perpendicular to the longitudinal axis of the sleeve, but each tooth being tangent to the sleeve at an angle of about 45. The strawberry 80

  is driven in the direction of arrow f (Figure 7).

  The various tools represented in FIGS. 9 to 13 can be selectively mounted on the yokes 56 and 66. FIGS. 9 and 10 show a tool 95 mounted on a support 70 and comprising a frame 96 with a branch 97 pivotally mounted on an axis 98 and provided with a flange 94 intended to cooperate with a flange 93, the two flanges

  being assembled by bolts 99.

  In the frame are enclosed two buffers 100 of elastic material trapping two jackhammers

  101 provided with points 102 for breaking the concrete.

  The frame 96 is connected to the support 70 by dampers

of vibrations 104.

  Figures 11 and 12 show attached to a sup-

  port 70, a motor 105 driving a circular saw blade

  106 passing through a slot 107, a base 108.

  Such a tool makes it possible to cut floor coverings.

  The base 108 is connected to the support 70 by dampers

of vibrations 109.

  Finally, the tool of Figure 13 includes a sup-

  port 70 connected to a sole 111 by vibration dampers 112, the sole supporting a vibrator 113 to

  to form a kind of hie proper to tamp the ground.

  At the rear part of the carriage 1, it can be mounted a chute 115 to receive the cuttings contained in the capacity 6 and thus channel them to

  a trench to fill it.

  It will be appreciated that when the heater 13 is put in place as shown in FIGS. 1 and 8, when the arms 12 are tilted in the position shown in phantom in FIG. 8, the capacity 6 will be

  overturned to empty the cuttings it contains.

  On the other hand, if the abutment 13 is removed, the capacity 6 can be deposited on the ground behind the carriage 1, without its contents being spilled and by simply tilting the arms 12 (position in phantom of the arms in FIG. 8 and in dotted lines of the capacity 6). In the latter case, it is therefore possible to replace a full capacity 6 with a vacuum and to store the cuttings in said capacities 6. If a trench must be made in the soil

  a street or a sidewalk, we begin by tracing the tran-

  Then, at the end of the arm 48, the tool 95 is mounted if the liner is made of concrete and the trolley 1 is placed along the trench to be drilled so that the spikes 102 break.

  concrete, the carriage moving along said tran-

  to be made as the concrete is broken.

  If the coating is formed of bitumen or the like, the support 70 of the tool of FIGS. 11 and 12 is mounted in the yokes 56 and 66 and the coating is cut with the saw 106 along the tracing, the pieces of coating being released. manually. In both cases the vacuum cleaner

28 is not put into operation.

  The cutil is removed and replaced

  The latter, presented vertically and driven by the motor 75 produces a first hole A, the cuttings being sucked through the pipe 37 and poured into the capacity 6, the milling cutter 80 is then inclined (FIG. printing it up and down alternately at the same time as the carriage is moved forward

  1, we realize the different slaughter B-C-D-E-F etc ...

  It is understood that the machine according to the invention is particularly practical and that it saves a

important workforce.

  Of course, the invention is not limited

  the embodiment which has just been described and represents

  you. Many modifications can be made to

  detail without departing from the scope of the invention.

Claims (12)

CLAIMS V E N D I C A T IO N S   1 - Public works machinery for the realization   trenches, of the type comprising a self-propelled vehicle, a capacity intended to receive the cuttings, a vacuum cleaner for sucking the cuttings and discharging them into the capacity and a tillage implement characterized in that the self-propelled vehicle comprises laterally an arm ( 48) mounted by a tilting end in a vertical plane on an axis (47) substantially perpendicular to the longitudinal axis of the carriage (1) and whose other end is provided with means for selectively receiving a tool, corresponding to the work to be performed means (51) being provided for   controlling the tilting of the arm, means (60) for controlling   der the modification of the angular position of the tool, means (45, 46) for moving the arm (48) away from the lateral side corresponding carriage (1).   2 - Machine according to claim 1, characterized in that the axis (47) of tilting arm (48) is carried by a slider (45) movable in the slides of the self-propelled vehicle (1) perpendicular to the longitudinal axis thereof, a cylinder (46) being inserted between said vehicle and the slider (45) to control the movement thereof.   3 - Machine according to claims 1 and 2,   characterized in that a jack (51) is inserted between the slider (45) and a tab (53) of the free end of the arm (48) to control the tilting in a vertical plane said arm (48).   4 - Machine according to claim 1, characterized in that the free end of the arm (48) comprises a yoke (56) and under said arm is fixed the body of a cylinder (60) whose piston rod is complete by a yoke (66), the tool comprising a support (70) intended to be inserted between the flanges of said yokes (56, 66) and pierced with holes for the passage of spindles (57, 69) passing through the flanges of said screeds (56,66).    - Machine, according to claims 1 and 4,   characterized in that the tool is constituted by a cutter (80) formed of a sleeve driven by a motor fixed on the support (70) and having along its free end of the teeth (86) said sleeve laterally having a first series of teeth (87) inclined towards the free end and located tangentially relative to the periphery of the sleeve, and at least a second series of teeth (88) arranged in a plane perpendicular to the axis of the sleeve   and tangentially in relation to the periphery of this   ci, the direction of rotation of the cutter being such that the free ends of the teeth of the first and the second series are located behind.   6 - Machine, according to claims 1 and 4,   characterized in that the tool is constituted by an assembly (95) capable of breaking the concrete and formed of a frame (96) connected to the support (70) by vibration dampers (104)   and hammers (101) fixed in the frame (96).   7 - Machine according to claims 1 and 4,   characterized in that the tool is constituted by a circular saw driven by a motor (105) and provided with a base (108) pierced with a slot (107) for the passage of the saw, said base being connected to the support (70) by   vibration dampers (109).   8 - Machine according to claims 1 and 4,   characterized in that the tool is constituted by a sole (111) supporting a vibrator (113) and connected by means of   vibration dampers (112) to the support (70).   9 - Machine according to claims 1, 4 and   5, characterized in that the sleeve of the cutter (80) is   connected by a hose to the capacity (6) which is itself   even connected to the suction of a vacuum cleaner (28) trained by the engine (25) of the vehicle.    - Machine, according to claim 6, characterized in that the capacity is closed by a sealed cover (7) pivotally mounted on the vehicle (1) and into which opens a pipe (29) connected to the suction of the vacuum cleaner ( 28) and a flexible tube (37) connected to the sleeve of the cutter (80).   11 - Machine, according to claims 6 and 7,   characterized in that the tilting of the lid (7) is controlled by a jack (16).   12 - Machine according to claim 1, characterized in that the vehicle comprises means (21) for depositing ashore the capacity (6).   13 - Machine, according to claim 12, characterized in that the vehicle (1) comprises a platform (5) on which rests the capacity (6) and two arms (12) arranged on either side thereof and mounted in the vicinity of a pivoting end on shafts (14) on the vehicle, the shafts (14) extending substantially perpendicular to the longitudinal axis of the vehicle, said arms being at their other end terminated by a fork (11) cooperating with a corresponding nipple (10) of the upper part of the capacity and cylinders (21) being inserted between the arms (12) and the platform (5) to control their tilting. 14 - Machine, according to claim 1, characterized in that the vehicle (1) comprises means (12, 13) for   allow the capacity (6) to be swung to empty.    - Machine, according to claims 13 and 14,   characterized in that the platform (5) has an abutment   removable (13) located near its rear end.   16 - Machine, according to claims 1, 14 and   , characterized in that the vehicle (1) has at the rear a removable chute (115).