EP1352138A1 - Cassette laterale de transmission pour appareil roulant automoteur nettoyeur de surface immergee - Google Patents
Cassette laterale de transmission pour appareil roulant automoteur nettoyeur de surface immergeeInfo
- Publication number
- EP1352138A1 EP1352138A1 EP01271482A EP01271482A EP1352138A1 EP 1352138 A1 EP1352138 A1 EP 1352138A1 EP 01271482 A EP01271482 A EP 01271482A EP 01271482 A EP01271482 A EP 01271482A EP 1352138 A1 EP1352138 A1 EP 1352138A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- transmission
- pin
- cassette
- casing
- transverse
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H4/00—Swimming or splash baths or pools
- E04H4/14—Parts, details or accessories not otherwise provided for
- E04H4/16—Parts, details or accessories not otherwise provided for specially adapted for cleaning
- E04H4/1654—Self-propelled cleaners
Definitions
- the invention relates to a transmission device for a self-propelled rolling device for cleaning a surface immersed in a liquid, in particular a swimming pool liquid. It extends to a self-propelled rolling device for cleaning the surface immersed in a liquid, in particular for swimming pools, provided with at least one transmission device according to the invention.
- Certain swimming pool cleaning devices are of the rolling type, that is to say comprising rotary rolling members (rollers, wheels, rollers, tracks, etc.) around transverse axes of rotation at least substantially parallel to the plane of bearing of the device defined by these running members, corresponding to the surface on which the device moves.
- Such devices can be self-propelled, that is to say incorporate and carry at least one motor (electric, hydraulic, etc.) driving at least one motor shaft whose rotary movement must be transmitted to at least one rolling member for drive it in rotation.
- the self-propelled apparatus comprises at least one electric motor powered by a waterproof electric cable plunging into the swimming pool, and whose output shaft (rotor) forms a drive shaft.
- a motorized electric appliance is also generally equipped (cf. for example EP-0.314.259, FR-2.584.442, US-5.569.371 ...) with a waste suction electric pump and a bag waste recovery filter.
- the motor shaft can be driven by a hydraulic motor (turbine) and / or by a flow suction pipe created by a pumping installation outside the pool and connected to the device by a suction pipe.
- the device is, more often than not, more or less automatic and is generally called a robot.
- the transmission are components which are complex and often subject to wear and deterioration, and which increase their cost and reliability.
- these transmission devices are of the belt type.
- the distance between the pulleys receiving the belt must be precise, which poses problems of sizing and manufacturing precision.
- the devices are low-cost devices whose manufacturing precision must be able to remain low.
- the belt and / or pulleys are subject to wear which can lead to a break or blockage of the transmission. When belt tensioners are provided, these are expensive and require regular adjustments of the belt tension.
- the tensioned belt has the effect of exerting significant radial forces on the bearings of the motor shaft and of the rolling members which, as a result, are also subject to rapid wear, except when using expensive special bearings or bearings. . These radial forces are even greater when belt tensioners are provided.
- the invention therefore aims to overcome these drawbacks by proposing a simple, reliable, inexpensive transmission device which does not exert radial forces on the bearings of the drive shafts or running gear which can be manufactured with low tolerances. manufacturing - in particular similar to that of the other elements of the apparatus and compatible with a traditional manufacturing by molding of synthetic material, which requires regular adjustments and whose maintenance is easy.
- the invention aims to propose a transmission device which can be easily and quickly replaced in the event of failure.
- the invention more particularly aims to propose a transmission device which is not very subject to wear during operation, and therefore moreover greater reliability and longevity than known belt drive devices.
- the invention also aims to propose a transmission device which does not require regular adjustments like belt devices.
- the invention aims more particularly to propose a transmission device compatible with different shapes and dimensions of devices, that is to say allowing the production of a range of devices of different shapes and sizes at low cost, with the same transmission devices.
- the invention also aims to provide a self-propelled rolling pool cleaner-more particularly of the electric motor type- having the same advantages, simple, inexpensive, reliable, long life, inexpensive to manufacture, easy and quick maintenance. , and whose availability of service is improved - notably little affected by transmission maintenance operations -.
- the invention relates to a transmission device for a self-propelled rolling apparatus cleaning a submerged surface (in particular a swimming pool) intended to transmit the rotary motor movement of at least one motor shaft, carried by the apparatus, to organs. rolling bearings about transverse axes of rotation to drive the device in movement, characterized in that it is formed of a lateral transmission cassette comprising:
- an input pin freely rotatable around an axis of rotation relative to the housing, and provided with removable coupling means, to a motor shaft of the apparatus also provided with removable coupling means combined with those of the input pin, this input pin being adapted to be coupled to the motor shaft when the cassette is mounted on the device,
- At least one output pin freely rotatable around an axis of rotation transverse to the housing, and provided with removable coupling means to a rolling member carried by the device, rotatable about an axis of rotation transverse, outside the cassette, said bearing also having removable coupling means combined with those of the output journal, this output journal being adapted to be coupled to said rolling member or said drive shaft when the cassette is mounted on the device, - means for transmitting the rotary motor movement between the input pin and each output pin, the casing carrying and guiding the pins and the transmission means, and
- - dismountable mounting means adapted to allow the removable rigid attachment allowing mounting and dismounting of the cassette in a single unit on one side of the device, the input pin being coupled to a drive shaft and each outlet pin being coupled to a rolling member.
- the device according to the invention consists of a cassette in one piece preset - that is to say of which the various constituent elements are adapted, adjusted and optimized in their choice, their positioning and their operation before mounting on the device (especially in the factory or in the maintenance workshop) - which can be assembled and disassembled in one piece, quickly and simply compared to the other components of the device.
- This design simplifies assembly and maintenance operations, and optimizes the various elements of the transmission cassette in favor of better reliability and a longer service life, at lower cost.
- the same transmission cassette can be used with different models (shapes, dimensions, types of operation) of apparatus, without it being necessary to carry out for each model adjustments, adjustments, or machining operations. or specific mounting. It suffices to provide for the different models the same center distance and compatible coupling means on each drive shaft and each rolling member.
- the means of transmission include gears - in particular consist of gears -.
- the transmission means comprise a train of successive pinions between the input pin which comprises a toothed wheel meshing with one of these pinions, and each output pin which also comprises a wheel toothed meshing with one of these pinions, and each pin and each pinion is mounted freely rotatable about an axis carried by the casing -notably integral with the casing, preferably formed by the casing.
- each train of pinions comprises an odd number of pinions of the same diameter.
- all the pinions are identical, which makes it possible to reduce the manufacturing costs.
- the gear train then has a transmission ratio equal to 1.
- all the input and output pins can also be formed from identical parts, which also makes it possible to reduce manufacturing costs.
- all of the transmission means have a transmission ratio equal to 1.
- all the journals and pinions are rotatable about parallel transverse axes of rotation, when the cassette is mounted on the device, to those of the running gear and drive shafts of the device. All the axes of rotation of a cassette according to the invention are therefore mutually parallel, which simplifies the manufacture thereof.
- the casing is formed by two half-shells extending at least substantially pe ⁇ endicularly to the axes of rotation of the output pins (vertically when the device is traveling on a horizontal surface) and in the longitudinal direction, l 'One on each side of the pins and the transmission means, these two half-shells being assembled to each other according to a generally longitudinal peripheral joint plane.
- the two half-shells are assembled to one another by screws and / or bolts passing through the axis of the pinions. This notably results in better rigidity of these axes and precise guidance and reliable pinions and trunnions.
- the transverse axes of rotation can be carried at each end or defined by each half-shell.
- the axes of rotation of the pinions are formed by the housing - in particular by one and / or the other of the half-shells -.
- each pin is freely rotatable relative to the housing by two end bearings each comprising a cylindrical housing formed by the housing receiving a ring of anti-friction synthetic material which in turn receives an extension axial cylindrical of the journal.
- the casing, the pins and the transmission means are made of synthetic material.
- the casing and / or the journals and / or the transmission means may advantageously be made of synthetic material, in particular injection molded.
- a transmission cassette according to the invention is advantageously entirely of synthetic material, with the possible exception of screws, bolts or other rigid assembly means which it comprises or which serve for its mounting on the device, which can be metallic . These assembly means can also be made of rigid synthetic material.
- the cassette according to the invention is thus not subject to corrosion, is light and inexpensive.
- a transmission device (cassette) according to the invention is of generally isosceles triangular shape (shape defined by its rigid casing), and comprises an input journal at its upper median top, and an output journal at each of its lower front and rear tops for coupling to front and rear rolling members.
- the input journal is adapted to be disposed in axial extension of the drive shaft when the cassette is mounted on the device.
- the outlet pin is adapted to be disposed in axial extension of the rolling member when the cassette is mounted on the device.
- the casing is an outer casing receiving, enclosing and enveloping the pins and said transmission means while protecting them from the outside, and comprises, on the side facing the center of the apparatus, for each pin, a light capable of allowing the coupling of this pin, through the housing, to a motor shaft or to a running gear.
- the dismountable coupling means of each journal are of the type carrying out the coupling with conjugate coupling means of the motor shaft or of a rolling member by simple relative positioning - in particular doggy. Coupling is thus obtained automatically by simple mounting and fixing of the cassette to the device.
- said removable mounting means comprise means for rigid assembly of the casing of the cassette to at least one other element of the apparatus - in particular to a transverse central rigid motor casing of the apparatus -.
- said removable mounting means comprise screws and / or tightening bolts. The fixing of the cassette is thus simple, precise, reliable and rigid.
- the transmission device itself also carries at least one rolling member of the device, this rolling member being driven or not by the motor movement.
- the transmission device comprises a track adapted to be driven to scroll by the input pin and form a lower longitudinal strand of contact with the ground acting as the rolling member of the device.
- the cassette according to the invention thus itself carries at least one rolling member driven by the motor movement. As a variant or in combination, it can also carry at least one wheel, caster, roller, etc. driven or not by the motor movement.
- the track is formed of an endless belt passing around the input pin and each output pin.
- each journal comprises two flanges parallel to each other and pe ⁇ endicular to the axis of rotation of the journal, adapted to form a receiving and driving roller of the caterpillar.
- the toothed wheel of each pin is interposed between the two flanges.
- the track comprises notches or internal teeth capable of being inserted between the flanges of the trunnions. These notches or internal teeth limit the lateral movements of the caterpillar and more particularly prevent the caterpillar from leaving its normal position.
- the track is made of flexible synthetic material. It advantageously comprises transverse anti-slip external teeth.
- the invention extends to a self-propelled rolling apparatus for cleaning a submerged surface (in particular a swimming pool) comprising at least one motor shaft, rolling rolling members around transverse axes of rotation to drive the apparatus in motion, and transmission means for transmitting the rotary motor movement of each motor shaft to each rolling member, characterized in that the transmission means comprise at least one transmission device (cassette) according to the invention.
- the device comprises two transmission devices (cassettes) according to the invention, one on each side.
- the device comprising a central transverse rigid motor housing, is characterized in that the transmission devices are rigidly fixed respectively to each lateral end of the motor housing, thus forming a rigid frame generally in the general shape of H on which the other components of the device are attached and fixed.
- the device comprises:
- the crankcase is molded as tightly as possible (with the necessary clearances necessary for the assembly, operation and molding of the crankcase) around the elements which it contains and has rounded shapes promoting the circulation of water. .
- the crankcase is hydrodynamic in shape and causes only a small pressure drop in the pumping of water.
- the crankcase comprises a central motor greater than an axis orthogonal to the running plane and driving a pumping propeller disposed outside the crankcase under the orifice of the hood, this propeller being adapted to generate a flow of water into the unit ".
- the bottom carries a filter interposed on the water circuit between the bottom inlets and the hood discharge orifice.
- the device comprises two separate independent motors, each of these motors having a motor shaft coupled to one of the two transmission devices.
- the running gear can be wheels, casters, rollers, etc. in one piece, or, as a variant, with a drive shaft and wear lining (s) (foam (s), brush (s), strip ( s) rolling ).
- An apparatus according to the invention is advantageously characterized in that it comprises two pairs of independent running gear, namely a pair of front running gear and a pair of rear running gear, the two running gear d 'The same pair being arranged in coaxial extension of one another, one of which is coupled to one of the two transmission devices, while the other is coupled to the other transmission device.
- Independent rollers and independent motors allow the device to be controlled according to all straight or curved trajectories.
- each drive shaft is rotatable about a transverse axis
- the input pin and the output pins of each transmission device are rotatable around parallel transverse axes, these different axes being at least substantially parallel to a rolling plane defined by the rolling members, corresponding to the surface on which the device must move.
- An apparatus according to the invention is thus of simple, rigid, reliable, wear-free, safe and economical design. Its maintenance is easy and requires no adjustment. It is easy and economical to modify the hydraulic or aesthetic characteristics thereof, in particular by adapting the shape of the front and rear transverse walls and / or of the upper cover.
- the invention extends to a maintenance process (upkeep or repair) of an apparatus according to the invention, characterized in that:
- a transmission cassette in working condition to make the device operational.
- a faulty maintenance operation is carried out on each faulty transmission cassette while it is removed from the device.
- the transmission cassettes can even be considered as disposable elements, that is to say that they are discarded as waste when they fail.
- a new transmission cassette is mounted in different operating condition, replacing each faulty cassette previously dismantled, so that the device is made immediately operational. .
- the invention also relates to a transmission device, a apparatus, and a maintenance method characterized in combination by all or some of the characteristics mentioned above or below.
- FIG. 1 is a schematic exploded perspective view of an apparatus according to a preferred embodiment of the invention
- FIG. 2 is a schematic perspective view of the device of FIG. 1 in the assembled state
- FIG. 3 is a schematic exploded perspective view of a transmission cassette according to the invention
- FIG. 4 is a schematic perspective view of the cassette of FIG. 3 in the assembled state
- FIG. 5 is a schematic view from below with a partial section of the apparatus of FIG. 2,
- FIG. 6 is a schematic view in transverse vertical section of the apparatus of FIG. 1,
- FIG. 7 is a schematic view in longitudinal vertical section of Figure 1.
- an apparatus or robot according to the invention rolling electric self-propelled submerged surface cleaner in particular swimming pool, comprising a casing 1 central transverse rigid motor in rigid synthetic material containing two similar independent electric motors 83, one on each side, each driving a transverse rotary motor shaft 2 which projects laterally outside the motor casing 1.
- the motor casing 1 contains a third electric motor 70, the drive shaft of which, called the pumping shaft 71, opens vertically upwards outside the casing 1 motor for driving a pumping propeller 3 upper external to the crankcase 1 motor.
- the apparatus according to the invention also comprises two lateral transmission cassettes 6 according to the invention, one on each side.
- Each transmission cassette 6 is rigidly fixed but so removable, in a single unit, respectively at each lateral end 7 of the motor housing 1.
- Each cassette 6 forms a lateral flange extending longitudinally forwards and rearwards of the motor housing 1, so as to forming a rigid frame 72 generally in the form of an H on which the other members of the apparatus are attached and fixed, namely an upper cover 5, a handle 8 for maneuvering; front 9 and rear 10 transverse walls extending between the two cassettes 6 and the upper cover 5, and at the front and, respectively, at the rear of the motor housing 1 and delimiting between them and with the cassettes 6, lower part, a lower opening closed by a bottom 11 provided with water inlets 66 with valves authorizing the entry of water upwards but preventing water outlets downwards.
- the bottom 11 carries a filter bag 12 incorporated in the housing 73 thus constituted by the cover 5, the transverse walls 9, 10 and the cassettes 6.
- the filter bag 12 has two pockets extending at the front and, respectively at the rear of the motor housing 1, between the motor housing and each transverse wall 9, 10.
- the front 9 and rear 10 transverse walls are provided, at their lower part, with non-return drain valves 74 adapted to prevent the entry of water from the outside into the housing 73 during operation of the device but for authorize, by gravity, the water contained in the housing 73 to exit.
- the water contained in the housing 73 is automatically drained by gravity by the drain valves 74 when the device came out of the water.
- the device comprises two front rollers 13 (a left front roller and a right front roller), extending between the two cassettes 6, and at the front of the front transverse wall 9, at the exterior of the hydraulic circuit formed in the housing 73, and transversely and in axial extension of one another, rotating about a transverse axis parallel to the surface on which they roll, each of these front rolling members 13 being coupled, respectively, to one of the lateral cassettes 6; and two rear rollers 14 (a left rear roller and a right rear roller) extending between the two cassettes 6 and at the rear of the rear transverse wall 10, outside the hydraulic circuit formed in the housing 73, and transversely and in axial extension of one another, rotatable about a transverse axis parallel to the surface on which they roll, each of these rear rolling members 14 being coupled, respectively, to one of the lateral cassettes 6.
- two front rollers 13 a left front roller and a right front roller
- the two rollers of the same pair of front 13 or rear 14 rollers are independent of each other, in rotation, that is to say not integral in rotation, each of them being driven by the one of the motors 83 (left or right), to the motor shaft 2 (left or right) from which it is connected by a transmission cassette 6.
- Each roller 13, 14 comprises a main cylindrical shaft 17, and a peripheral lining 18, for example made of foam and / or formed of brushes, mounted integral in rotation with the shaft 17, but which can be replaced in the event of wear.
- the shafts 17 of the two front rollers 13 or rear 14 are cylindrical of revolution and telescopic one inside the other axially so that they can be brought together in the central part of the apparatus to be uncoupled from the lateral cassettes 6 and dismantled from device, or, on the contrary, be distant from one another in order to couple them to the cassettes 6.
- the shafts 17 of the rollers 13, 14 are also guided by a central bearing 15, 16 secured to the front wall 9, disposed between the two front or rear 13 or 14 rollers 14.
- This bearing 15, 16 comprises a notch 15 for receiving the shaft 17 of larger diameter from one of the rollers 13, 14 and a locking hook 16 pivoting so as to be able to be folded over the notch 15 and the shaft 17 for mounting the rollers or, on the contrary, disengaged from the notch 15 for removing the rollers 13, 14.
- the two rear rollers 14 are similar to the front rollers 13, tra axis nsversal parallel to that of the front rollers 13, and mounted and driven similarly to the front rollers 13.
- the bearings 15, 16 integral with the transverse walls 9, 10 guiding the rollers 13, 14 undergo little effort radially.
- rollers 13, 14 define a rolling plane of the device corresponding to the submerged surface on which it moves.
- the motor shafts 2 of the device are coaxial and parallel to this running plane.
- the pumping shaft 71 of the third motor driving the propeller 3 is orthogonal to this running plane, so that the propeller 3 is adapted to create a flow of water in the orthogonal direction away from the running plane ( vertically upwards when the submerged surface is horizontal) from the lower inlets 66 around the motor housing 1 and between the transverse walls 9, 10, the cassettes 6 and the motor housing 1, and up to an upper discharge orifice 4 formed in the upper cover 5 of the device through which water is discharged from the device upwards.
- the filter bag 12 extends at the front and at the rear of the crankcase 1 and its opening is associated with the periphery of the bottom 11 so that this filter bag 12 is interposed on the water circuit between inputs 66 and outlet 4.
- the casing 1 can be molded as close as possible around the motors 70, 83 and the bodies which it contains, for the benefit of a smaller footprint, an increase in rigidity, and hydrodynamic rounded external shapes.
- the propeller 3 When the propeller 3 is active, the water is driven in upward movement and therefore cannot escape through the drain valves 74 by gravity.
- a sealed electrical power cable 19 is connected to the inside of the motor housing 1, for supplying and controlling the various motors 70, 83, and this cable 19 passes through the upper cover 5 through one of the lights 79 of fixing the handle 8 so that it can be connected to a source of electrical power external to the device and to the swimming pool.
- each cassette 6 has symmetry with respect to a transverse median plane orthogonal to the running plane and therefore to the surface on which the device moves. This plane of symmetry is thus in particular vertical when this surface is horizontal.
- the frame 72, and more generally the apparatus, are generally symmetrical with respect to the same transverse median plane orthogonal to the rolling plane, and this plane of symmetry of the robot coincides with the plane of symmetry of each cassette 6.
- the frame 72 and the device are also generally symmetrical with respect to a median longitudinal plane orthogonal to the running plane.
- Each transmission cassette 6 comprises an external rigid casing 20 (the other elements of the cassette 6 being incorporated in this casing 20).
- This casing 20 is formed by two half-shells 20a, 20b, one half of which inner shell 20a closest to the engine casing 1 of the device, fixed to the engine case 1 of the device, and an outer half-shell 20b furthest from the engine case 1 of the device.
- Each half-shell extends at least substantially orthogonally to the running plane and in the longitudinal direction, and the two half-shells 20a, 20b are assembled to one another along a generally longitudinal peripheral plane 21a, 21b.
- the half-shells 20a, 20b are made of rigid molded synthetic material.
- the internal half-shell 20a comprises a middle upper bracket 22 extending transversely towards the center of the device so that it can be fixed by a screw 23 to the motor housing 1, above the motor shaft 2.
- the handle 8 has two ends 76, each of which is provided with a hook 77 capable of being engaged in a slot 78 of the bracket 22 and of hooking onto this bracket 22.
- the cover 5 is provided with slots 79 allowing the passage of the hooks 77 through the cover 5, and the insertion of locking jumpers 80 adapted to lock the hooks 77 in the hooking position.
- Each light 79 of the cover 5 is larger than the hook 77, so that a locking jumper 80 can be inserted in this light 79 at the rear of the hook 77, between the hook 77 and the edge opposite the light 79 to push the hook 77 laterally into the hooking position with the bracket 22.
- the reverse operations are carried out.
- the handle 8 is thus fixed on the brackets 22 of the cassettes 6, therefore on the frame 72, through the cover 5 in a removable manner. It should be noted that this attachment of the handle 8 to the frame 72 also secures the cover 5 to the frame 72, the hooks 77 and jumpers 80 having an outer part larger than the lights 79 of the cover 5, so that the cover 5 is held against the brackets 22 of the cassettes 6.
- the internal half-shell 20a also includes two lower lateral brackets 24 also extending transversely towards the center of the apparatus to be placed above a lower lateral flange 25 of the crankcase 1 and to be fixed there by screws 26. Between the brackets 22, 24, the internal half-shell 20a is shaped so as to receive the lateral end 7 of the motor housing 1, the motor shaft 2 being able to be coupled to an input pin 27 of the cassette 6 accessible via a light 43 passing through the half internal shell 20a, axially opposite the motor shaft 2.
- the input pin 27 is mounted freely rotatable relative to the cassette 6, between the two half-shells 20a, 20b, around a transverse axis of rotation, and receives the motor movement of the motor shaft 2.
- each half-shell 20a, 20b defines a cylindrical housing 28a, 28b receiving a ring 29a, 29b, in anti-friction synthetic material, which itself receives an axial cylindrical extension 30a, 30b of the input pin 27 allowing its guidance in rotation in the ring 29a, 29b.
- the cylindrical axial extension 30a extending on the side of the internal half-shell 20a is extended by four clutch pins 31 forming removable coupling means to the motor shaft 2.
- the motor shaft 2 is itself endowed an interconnection cross 32 adapted to receive the engagement pins 31 of the input pin 27 when the cassette 6 is in place on the crankcase 1.
- the pins 31 and the interconnection cross 32 thus form coupling means removable by simple relative positioning, of the dog clutch type, the pins 31 extending axially coming to engage in conjugate notches of the cross 32.
- the cassette 6 also comprises two output pins 33, 34, namely a front output pin 33 and a rear output pin 34, adapted to be coupled, through the casing 20, to the shaft 17 of one of the front rollers 13 or rear respectively 14.
- Each output pin 33, 34 is freely rotatable about a transverse axis of rotation, like the input pin 27.
- the front pin 33 and rear pin 34 are identical to the pin inlet 27 and guided relative to the casing 20 of the cassette 6, like the inlet pin, by means of cylindrical housings 35a, 35b front and 36a, 36b rear formed in the half-shells 20a, 20b, and by rings in material front antifriction 37a, 37b and rear 38a, 38b, each outlet pin 33, 34 comprising a cylindrical axial extension 39a, 39b, respectively 40a, 40b, engaged in the corresponding ring 37a, 37b, 38a, 38b.
- the two outlet pins 33, 34 also comprise, on the inside of the device, pins 41, respectively 42, for interconnection adapted for coupling the journal 33, 34 to a cross coupling 46, respectively 47, s' extending at the lateral axial end of the shaft 17 of the roller 13, 14 opposite.
- the interconnection pins 31, 41, 42 of the different pins 27, 33, 34 extend through circular slots 43, 44, 45 formed through the internal half-shell 20a in order to be able to cooperate with the interconnection crosses 32, 46 , 47 opposite and make the removable coupling through the housing 20.
- the input pins 27 and output 33, 34 can be formed of identical parts, which reduces manufacturing costs.
- the cassette 6 comprises a train of successive pinions 48, 49 meshing in pairs, mounted freely rotatable around transverse axes of rotation (parallels two by two and to the axes of rotation of the pins 27, 33, 34), and meshing on the one hand with a toothed wheel 50 of the input pin 27 and, on the other hand, with a gear wheel 51, respectively 52, of the output pin 33, respectively 34.
- each train of pinions 48, 49 comprises an odd number of pinions and the different pinions have the same diameter. The different pinions can thus be identical, for the benefit of a manufacturing economy.
- each of the output pins 33, 34 is also rotated in the same direction and at the same speed by the pinion trains 48, 49.
- the axes of rotation of the various pinions 48, 49 may simply be formed by cylindrical transverse extensions 53 adapted to receive a cylindrical bore of the various pinions, these extensions 53 extending outward from the half internal shell 20a of which they are integral.
- the two internal half-shells 20a and external 20b are assembled to one another by screws 54 passing through the axes of rotation of the pinions 48, 49, that is to say by the transverse extensions 53
- the different pinions 48, 49 then have a lumen for the passage of these assembly screws 54
- the external shell 20b comprises studs 55 abutting against the axial end of the transverse extensions 53 formed by the internal half-shell 20a, these studs 55 being adapted to receive the self-tapping screws 54, so that their threads are engaged with these threads 55 which act as threads.
- the studs 55 can be secured in a non-removable manner (welding, bonding, etc.) to the extensions 53, the half-shells 21a, 20a then being non-removable.
- the internal half-shell 20a also includes grooves 64, respectively 65, for receiving the lateral end edges 80 of the front transverse wall 9 and 81 of the rear transverse wall 10, and the lower lateral brackets 62 are provided with lights crossed by screws 63 allowing the assembly of the transverse walls 9, 10, of the cassettes 6 and of the cover 5.
- the transverse walls 9, 10 are therefore embedded in the grooves 64, 65 of the cassettes 6 and extend between these two cassettes 6 over all the height of the cassettes 6 at the level of the grooves 64, 65.
- the screws 63 tighten the transverse walls 9, 10 and the cover 5 towards each other on the cassettes 6. In the example shown, they are introduced into slots transverse walls 9, 10 for screwing into screw studs forming threads on the cover 5.
- the bottom 11 can be fixed on the transverse walls 9, 10 and / or the side cassettes 6 by elastic screws and / or hooks or other removable fixing means so as to close the lower opening formed by the transverse walls 9, 10 and the side cassettes 6.
- the bottom 11 is removably fixed to the frame 72, in particular to the side cassettes 6, by elastic hooks 75 cooperating with a groove 76 integral with the internal half-shell 20a.
- the transverse walls 9, 10 and the upper cover 5 are carried by the cassettes 6 by virtue of the grooves 64, 65 and the brackets 62 and screws 63.
- the outer half-shell 20b also preferably has a central upper bracket 56 intended to extend above the central upper bracket 22 of the internal half-shell 20a and fixed with it to the crankcase 1 above the motor shaft 2.
- the cassette 6 advantageously comprises a track 57 formed of an endless belt passing around the inlet pins 27 and outlet pins 33, 34 so as to be driven continuously by these pins 27, 33 , 34 and form a longitudinal lower strand 58 of contact with the ground acting as a rolling member driven by the device.
- each pin 27, 33, 34 advantageously comprises two lateral parallel flanges 59 pe ⁇ endicular to the axis of rotation of the pin 27, 33, 34, on either side of the toothed wheel 50, 51 , 52, so as to form a roller for receiving and driving the track 57.
- the latter advantageously comprises notches or internal teeth 60 adapted to be inserted between the two flanges 59.
- the track 57 advantageously comprises notches or external teeth 61, or any other equivalent anti-slip member capable of coming into contact with the ground.
- Such a lateral track facilitates the drive of the device when passing through stairs or in slope breaks or inclined walls.
- the different pinions 48, 49, the pins 27, 33, 34 and the half-shells 20a, 20b can be made entirely of rigid synthetic material, and the track 57 of flexible synthetic material, so that the transmission cassette 6 according to the he invention is entirely of synthetic material, with the possible exception of the assembly screws 23, 26, (for mounting the cassette 6 on the apparatus) and 54 for assembling the half-shells 20a, 20b. These screws 23, 26, 54, moreover, can also be made of synthetic material.
- the entire transmission thus produced is not subject to corrosion and is highly reliable in operation in water.
- the device according to the invention is free from moving metal parts or from metallic friction members.
- the different cassettes 6 are produced with a very small number of different parts and their manufacturing cost is low.
- the invention can be the subject of numerous variant embodiments with respect to the preferred embodiment shown both with regard to the transmission cassette (s) 6 and with regard to the apparatus according to the invention. 'invention.
- the transmission cassette 6 can be applicable to a self-propelled device whose drive motor is not electric but for example hydraulic.
- the transmission of the motor movement between the input pin 27 and each output pin 33, 34 can be carried out only via the track 57 which acts as a drive belt (the cassette then being free of gears ).
- the number of pinions of the gear trains can be different from three.
- the output pins can not drive rollers, but drive shafts integral in rotation with wheels or casters ... or even be directly coupled to running gear free of separate drive shaft (for example to end flanges of these wheels, casters, rollers ).
- the device according to the invention can comprise non-motorized running gear (mounted free to rotate) and / or coupled running gear successively to each other and not directly independently to a transmission cassette.
- An apparatus according to the invention may comprise only a drive motor, a drive shaft, and a lateral transmission cassette, the other lateral cassette being free of transmission means and used only for guiding running gear and, if applicable, the track.
- the apparatus according to the invention comprises two drive motors 83, one on each side, and two lateral transmission cassettes 6 both provided with transmission means 48, 49, 57 . It is then possible to steer the device according to the speed of each motor 83.
- the maintenance of the transmission of an apparatus according to the invention is reduced and simple.
- it suffices to dismantle the so-called faulty transmission cassette i.e. on which a maintenance operation must be carried out as preventive maintenance or because it has a malfunction ( wear, breakage ...)).
- To do this simply unscrew the screws 63 to dissociate the faulty cassette 6 from the transverse walls 9, 10 and the cover 5, remove the handle 8 and remove the screws 23, 26 to dismantle the cassette 6 from the crankcase 1.
- a cassette 6 is reassembled in working order by the reverse operations to make the device operational again.
- a new transmission cassette 6 in operating condition different from the faulty cassette (new or formed from a repaired cassette) can be immediately installed, the device being immediately operational without adjustment.
- the disassembled cassettes 6 can be the subject of maintenance operation (s) or even be disposed of as waste.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- General Details Of Gearings (AREA)
- Cleaning In General (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Electric Suction Cleaners (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0016786A FR2818681B1 (fr) | 2000-12-21 | 2000-12-21 | Cassette laterale de transmission pour appareil roulant automoteur nettoyeur de surface immergee |
FR0016786 | 2000-12-21 | ||
PCT/FR2001/003934 WO2002050389A1 (fr) | 2000-12-21 | 2001-12-11 | Cassette laterale de transmission pour appareil roulant automoteur nettoyeur de surface immergee |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1352138A1 true EP1352138A1 (fr) | 2003-10-15 |
EP1352138B1 EP1352138B1 (fr) | 2004-10-06 |
Family
ID=8858013
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01271482A Expired - Lifetime EP1352138B1 (fr) | 2000-12-21 | 2001-12-11 | Cassette laterale de transmission pour appareil roulant automoteur nettoyeur de surface immergee |
Country Status (8)
Country | Link |
---|---|
US (2) | US7117554B2 (fr) |
EP (1) | EP1352138B1 (fr) |
AT (1) | ATE278851T1 (fr) |
AU (1) | AU2002217249A1 (fr) |
DE (1) | DE60106298T2 (fr) |
ES (1) | ES2230236T3 (fr) |
FR (1) | FR2818681B1 (fr) |
WO (1) | WO2002050389A1 (fr) |
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- 2000-12-21 FR FR0016786A patent/FR2818681B1/fr not_active Expired - Fee Related
-
2001
- 2001-12-11 AT AT01271482T patent/ATE278851T1/de not_active IP Right Cessation
- 2001-12-11 DE DE60106298T patent/DE60106298T2/de not_active Expired - Lifetime
- 2001-12-11 WO PCT/FR2001/003934 patent/WO2002050389A1/fr not_active Application Discontinuation
- 2001-12-11 AU AU2002217249A patent/AU2002217249A1/en not_active Abandoned
- 2001-12-11 US US10/450,907 patent/US7117554B2/en not_active Expired - Fee Related
- 2001-12-11 ES ES01271482T patent/ES2230236T3/es not_active Expired - Lifetime
- 2001-12-11 EP EP01271482A patent/EP1352138B1/fr not_active Expired - Lifetime
-
2006
- 2006-10-05 US US11/543,493 patent/US20080222821A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
See references of WO0250389A1 * |
Also Published As
Publication number | Publication date |
---|---|
AU2002217249A1 (en) | 2002-07-01 |
US7117554B2 (en) | 2006-10-10 |
ATE278851T1 (de) | 2004-10-15 |
WO2002050389A1 (fr) | 2002-06-27 |
US20040025269A1 (en) | 2004-02-12 |
FR2818681B1 (fr) | 2003-04-04 |
FR2818681A1 (fr) | 2002-06-28 |
US20080222821A1 (en) | 2008-09-18 |
DE60106298T2 (de) | 2005-10-20 |
EP1352138B1 (fr) | 2004-10-06 |
ES2230236T3 (es) | 2005-05-01 |
DE60106298D1 (de) | 2004-11-11 |
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