EP0356577B1 - Tête de succion pour nettoyer des surfaces immergées - Google Patents

Tête de succion pour nettoyer des surfaces immergées Download PDF

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Publication number
EP0356577B1
EP0356577B1 EP88117338A EP88117338A EP0356577B1 EP 0356577 B1 EP0356577 B1 EP 0356577B1 EP 88117338 A EP88117338 A EP 88117338A EP 88117338 A EP88117338 A EP 88117338A EP 0356577 B1 EP0356577 B1 EP 0356577B1
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EP
European Patent Office
Prior art keywords
suction head
housing
turbine
head according
rotary
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.)
Expired - Lifetime
Application number
EP88117338A
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German (de)
English (en)
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EP0356577A1 (fr
Inventor
Dieter J. Rief
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pooltec Establishment
Original Assignee
Pooltec Establishment
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Pooltec Establishment filed Critical Pooltec Establishment
Priority to AT88117338T priority Critical patent/ATE62050T1/de
Priority to CA000582780A priority patent/CA1312709C/fr
Priority to AU28363/89A priority patent/AU608726B2/en
Priority to BR898900920A priority patent/BR8900920A/pt
Publication of EP0356577A1 publication Critical patent/EP0356577A1/fr
Application granted granted Critical
Publication of EP0356577B1 publication Critical patent/EP0356577B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • 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
    • E04H4/1618—Hand-held powered cleaners
    • E04H4/1636—Suction cleaners

Definitions

  • the invention relates to a suction head for cleaning submerged surfaces according to the preamble of claim 1.
  • a suction head is known from US-A-3,229,315.
  • suction head of the type mentioned, the front part is approximately triangular and the rear part is approximately semicircular and directly adjoins the front part.
  • a connecting piece on the top of the suction head for connecting a suction hose.
  • the suction head has two rear wheels that are at a relatively large distance from one another laterally, and two front wheels that are attached to a common turntable and are at a comparatively close distance from one another.
  • a turbine is arranged in the suction head with a vertical axis of rotation, which drives the two front wheels via a gear mechanism.
  • the suction head housing consists of an upper part with outer peripheral walls hanging down and an intermediate floor attached to it at a distance from the upper wall of the upper part, the turbine housing being formed in the intermediate space between the upper wall of the upper part and the intermediate floor, and a transmission chamber being formed on the lower floor is in which the gear drive for driving the front wheel is housed.
  • this suction head Due to the convoluted flow path, this suction head has a relatively high flow resistance for the suction Water on.
  • the gear mechanism and the turbine are not easily accessible, rather the entire suction head must be dismantled if, for example, these parts need to be cleaned.
  • a suction head for cleaning submerged surfaces is known, with a housing which has an inlet arranged on its underside and a rotatable connecting element directed perpendicular to the underside for connecting a suction hose, with a water-driven turbine in the flow path of the water flowing through the suction head, with wheels arranged on the housing, which support the housing, with movement transmission devices between the turbine and at least one wheel, and with a second water-driven turbine in the housing, which drives the rotatable connecting member via a reduction gear with changing directions of rotation, so that the suction head, driven by the first-mentioned turbine, travels on the surface to be cleaned and thereby describes an arcuate path which is determined by the suction head being rotated by means of the second turbine around the rotatable connecting member and thus around the suction hose.
  • Caterpillars are looped around two wheels of the suction head, which give the suction head a relatively large contact surface with the surface to be cleaned.
  • the shaft of the first-mentioned turbine is provided with an eccentric weight which transmits an oscillating movement to the suction head during operation, so that the adhesion of the latter to the surface to be cleaned is reduced or prevented, so that a change in the direction of travel of the suction head is not opposed to great resistance. If this suction head is used in a swimming pool and bumps against a vertical wall that delimits the pool floor, then it stops and is stopped by the second turbine around the connecting link rotated, whereupon he can continue his journey. However, if he approaches a corner at an angle, he cannot free himself from this situation.
  • the drive for rotating the suction head with respect to the connecting element is quasi supported on the connecting element, it is essential for producing the rotary movement of the suction head that the suction hose is sufficiently torsionally rigid. This requirement may conflict with sufficient flexibility and a lightweight construction of the suction hose.
  • a similar suction head for a surface to be cleaned under water with a suction hose connected to a suction source is known from DE-C-3 320 923.
  • This suction head does not contain any wheels, but rather friction feet arranged obliquely and pivotably on the housing, which, when actuated by a first water-driven turbine on which an eccentric weight is arranged, cause the housing of the suction head to move forward by vibration.
  • the movement path is in turn influenced by a second water-driven turbine and an intermediate gear by means of a rotatable suction hose connector, as in the aforementioned suction head.
  • This suction head behaves like the aforementioned suction head when it hits a vertical swimming pool wall.
  • the invention has for its object to provide a suction head of the type mentioned, which is simple in construction is, has a long service life, can be manufactured with simple tools and is easy to maintain.
  • the present invention provides a suction head which can be sprayed with simple injection molds, for example made of plastic. It consists of very few parts that are very easily accessible and can therefore be cleaned with simple means.
  • the turbine which could be impaired in its effectiveness by foreign bodies in the water, is very easily accessible, since the gear housing can be opened with a simple handle without the aid of any tools and the turbine wheel is then completely exposed, so that it, also without further aids, can be removed from the turbine chamber and cleaned.
  • the transmission transmission devices between the turbine and the at least one driven front wheel are also easily accessible and can be cleaned well.
  • the suction head is essentially assembled using snap connections. It is possible to completely avoid the use of screw and welded connections.
  • the invention also provides for a self-steering mechanism to be used on the suction head which, in the rest position, enables a defined drive either straight ahead or in an arc and to dodge when hitting an obstacle of the suction head.
  • the rest position can be adjusted by means of a simple eccentric bushing in order to determine the path of the suction head when driving freely, depending on whether it should run straight, in a slight or in a stronger arc.
  • a turntable which is freely rotatably mounted on the front of the suction head and protrudes beyond the outline of the suction head housing at the front and on the side, preferably over an arc of at least 180 °.
  • the figures show a suction head, which is denoted overall by 1, consisting of a housing 2 of approximately trapezoidal outline, which is rounded at its front end (see. Fig. 4) and in which two closely spaced front wheels 3 and two on a common axis Rear wheels 4 seated at a greater distance are rotatably mounted.
  • the housing 2 is open on its underside and closed at the top by a cover plate 5 which has a dome-like elevation 6 in which a connecting piece 7 for connecting a suction hose (not shown) is rotatably mounted about its axis.
  • the housing 2 has a recess in its cover plate 5, in which a turntable 8 is arranged, which is mounted on the housing 2 in a vertical, hollow connection piece 2a which is formed in one piece with the housing, and which is freely rotatable.
  • This turntable 8 is at the front and on the side over the housing 2.
  • Fig. 1 under the housing 2, the lateral extension of a suction nozzle 9, which will be described later.
  • Fig. 1 shows the suction head 1 on a scale reduced to about half.
  • the housing 2, the connecting piece 7, the turntable 8 and the nozzle 9 are preferably plastic injection molded parts, wherein the turntable 8 can optionally consist of two shells which are joined together on a peripheral edge.
  • the turntable 8 has on its underside a central pin 8a, which is inserted into the hollow connection piece 2a on the housing 2 and locked therein behind a projection.
  • a water-driven turbine is arranged in the housing 2 approximately in the rear third.
  • This turbine 10 comprises a turbine housing which is in two parts.
  • the one, upper housing part 11 is combined with the suction head housing 2 to form a one-piece unit.
  • the second, lower housing part 12 adjoins the upper housing part 11 on a straight dividing line 13, the axis of a turbine shaft 14 running in the dividing line 13 and being held there in the bearings 13a which can be divided in one half.
  • the second, lower housing part 12 is pivotably held on an axis rod 15, which runs transversely to the suction head housing 2 and is fastened therein, and which is also an axis rod for the rear wheels 4.
  • the lower housing part has the second halves of the separable bearings 13a on the dividing line 13.
  • An elastic holding device 16 is formed on the lower housing part 12, which latches the lower housing part 12 in the form of a slot by means of a catch 17 formed on the suction head housing 2 and thus closes the turbine housing and at the same time supports the turbine shaft 14.
  • the lower housing part 12 has an inlet opening 18 which is formed on the nozzle 9 and leads into the turbine chamber.
  • the lower housing part 12 is extended to the nozzle 9 shown in FIG. 1 and carries at the edge an elastic apron 19 which creates a not completely tight seal to the floor on which the suction head 1 rolls.
  • the dome-like elevation 6 of the suction head housing 2 is in the area of the turbine housing with a circular opening, in which the connection piece 7 already mentioned is arranged.
  • This has a protruding collar at its lower end and is pushed through the opening. It is mounted on the housing 2 by means of a ball bearing 20 so as to be easily rotatable about its axis.
  • the ball bearing 20 includes a bearing ring 20a, which is pushed onto the connecting piece 7 from above and is locked behind an extension 7a on the connecting piece 7.
  • the connection piece 7 is secured in the opening on the suction head housing 2 by the aforementioned collar and the bearing ring 20a.
  • a turbine wheel 21 is rotatably mounted about a horizontal axis, of which some blades and the direction of rotation A can be seen in FIG. 2, which results when a suction effect is exerted on the connecting piece 7.
  • the turbine wheel 21 and the shaft 14 are designed here as an integral unit.
  • the inlet opening 18 of the nozzle 9 and the axis of the connecting piece 7 are arranged on a straight line, which runs as a chord to the circulating circuit outlined by the turbine wheel 21, so that a straight flow path through the suction head during operation 1 results.
  • a bevel gear 22 is attached to the shaft 14 of the ball-bearing turbine wheel 21.
  • This has an axle socket which is inserted into the hollow turbine shaft 14.
  • Fig. 4 shows the nozzle 9 in dashed lines in the closed state of the turbine housing. It can be opened together with the lower housing part 12 around the axis rod 15 downwards and backwards, or, if the suction head 1 is placed on the head, upwards and backwards, so that the turbine housing then presents itself as shown in FIG. 4. It can be seen that the turbine wheel 21 from the shaft 14 and turbine blades is exposed and can be easily removed from the suction head 1.
  • a second bevel gear 23 meshes, the axis of rotation of which runs approximately in the longitudinal direction of the suction head 1.
  • This second bevel gear 23 is rotatably connected by means of a sleeve 24 to a third, front bevel gear 25.
  • the second and third bevel gears 23 and 24 are rotatably supported by an angled axle rod 26, one leg of which penetrates the two bevel gears 23 and 25 and the sleeve 24.
  • This axle rod 26 is held in the suction head housing 2 by means of elastic, fork-like fastening tabs 2b and 2c (see FIG. 2c), which are formed in one piece with the housing 1.
  • the one fastening tabs 2b are arranged in the vicinity of one end of the axle rod, while the other fastening lugs 2c are arranged in the vicinity of the point where the axle rod 26 is angled.
  • the axle rod 26 extends, as shown in FIG. 2a, from the rear, second bevel gear 23 to the front, third bevel gear 25 slightly inclined upwards.
  • the axle rod 26 is angled at right angles and supports a fourth bevel gear 27 on the angled second leg, which is non-rotatably connected to a fifth bevel gear 29 by means of a sleeve 28.
  • the angled second section of the axle rod 26 runs approximately in the horizontal direction. Its free end is fixed in a pocket 30a (FIG. 2c) which is formed integrally with the suction head housing 2.
  • the pocket 30a is formed laterally on an approximately vertically extending bush 30, in which a torsion bar 31 is rotatable is stored.
  • the pocket 30a can be closed by a plug on the underside in order to secure the axle rod 26 therein.
  • the bushing 30 is formed in one piece with the suction head housing 2 and is stiffened on the outside by radial ribs 30b against the suction head housing 2. The bushing 30 penetrates the top of the suction head housing 2.
  • the torsion bar 31 is rotatably mounted in a turntable 32 in which a front axle shaft 33 is rotatably mounted, which supports the front wheels 3 at a close mutual distance.
  • the front wheels 3 can be mounted on the front axle shaft 33 in a free-running or non-rotatable manner, or one of the front wheels is non-rotatably and the other is attached to the shaft via a slip clutch.
  • a sixth bevel gear 34 is rotatably mounted on the torsion bar 31 and is connected in a rotationally fixed manner to a seventh bevel gear 36 by means of a sleeve 35.
  • the seventh bevel gear 36 is located above the turntable 32 and meshes in an eighth bevel gear 37 which is non-rotatably connected to one of the front wheels 3, in the present example the left front wheel.
  • an approximately semicircular disk 38 (see FIG. 3) is attached in a rotationally fixed manner, to which a spiral spring 41 is anchored, which is otherwise wound around a pin 42 which is inserted into a bracket 5a protruding from the suction head housing 2 is.
  • This spiral spring 41 holds the turntable 32 in a defined rest position, in which the front axle shaft 33 has a predetermined orientation with respect to the rear axle rod 15.
  • the rest position is determined by the stop of the semicircular disk 38 on the hollow connection piece 2a and can be attached to the hollow connection piece 2a
  • Eccentric bushing 43 are adjusted against which the disk 38 abuts in its end positions.
  • the hollow socket 2a is slightly conical on the outside, so that the eccentric bush 43 can be clamped to it. The spring unwinds from the pin.
  • the turntable 8 is hollowed out on its underside in a suitable manner in order to be able to accommodate these parts, for example the bush 30, the spiral spring 31, the bracket 5a with the pin 42 and the bevel gears 27 and 29.
  • the mentioned sleeves 24, 28 and 35 which serve for the axial connection of bevel gears, are preferably made of plastic material and take up axial connectors formed on the bevel gears with a pressing force.
  • This type of construction allows standard bevel gears to be used, which makes the suction head very cheap.
  • the inner cross section of the sleeves is angular, for example hexagonal, and the axle stubs of the bevel gears have an adapted profile to produce a positive connection between the sleeves and the axle stub. With the help of the invention it is possible to manufacture the sleeves from yard goods, which greatly simplifies production.
  • the bevel gears are preferably made of plastic. The same applies to the turntable 32 and the wheels 3 and 4.
  • the wheels in particular the front wheels 3, are expediently provided with tires 39, the material of which is selected in this way is that with the swimming pool materials in question, for example ceramic plates, polyester, polyvinyl chloride, concrete, there are optimal friction properties for propelling the suction head 1.
  • the transmission formed by the bevel gears is a reduction gear with a reduction ratio of approximately 40: 1 to approximately 20: 1.
  • the suction head 1 in a water-flooded swimming pool is explained below.
  • the suction head 1 is located on the bottom of the swimming pool.
  • a flexible suction hose (not shown here) is connected to its connecting piece 7.
  • water is drawn in by a suction pump, also not shown here.
  • the water enters through the inlet opening 18 in the nozzle into the turbine housing formed in the suction head housing 2 and flows through it in an almost straight path in the direction of the intake port 7 and thereby drives the blades of the turbine wheel 21 in the arrow A in FIG. 2a indicated direction of rotation.
  • the rotation of the turbine shaft 14 is transmitted via the first bevel gear 22 to the second bevel gear 23, which transmits its rotational movement to the third bevel gear 25 via sleeve 24.
  • the fifth bevel gear 29 converts the rotation about the horizontal axis into a rotation about the vertical axis, namely about that of the torsion bar 31, by means of the sixth bevel gear 34.
  • the sixth bevel gear 34 drives the seventh bevel gear 36 via the sleeve 35, which meshes in the eighth bevel gear 37, which is connected to the left front wheel in a rotationally fixed manner.
  • the suction head 1 pivots due to the impact on the obstacle the previous direction of movement encloses an angle that can be far greater than 90 °.
  • the extent of the deflection and the speed of its return can be determined by the choice of the return spring force, or the suction head can also be made to make a complete U-turn. If the gearwheel arrangement on the front wheels and the reset mechanism are mirror images, the suction head is deflected to the left.
  • the front area of the suction head housing 2 should be narrower than the rear area and the turntable 8 should have a sufficient projection.
  • openings 5 are formed in the cover plate 5 which delimits the top of the suction head housing and which enable or facilitate ventilation of the suction head 1 when immersed in the water.
  • These openings can, for example, be formed laterally in a recessed section of the cover plate 5, where the catch 17 is designed for the elastic holding device of the lower turbine housing part 12, cf. Fig. 2a.
  • the return spring arrangement can optionally also contain two return springs which urge the turntable into a predetermined rest position.
  • a stop for defining the rest position can be dispensed with and the suction head can, depending on the nature of the floor on which it is driving, execute a possibly wobbling movement.
  • an inner bushing 43 is seated in the vertically extending bushing 30 which is formed in one piece with the suction head housing 2 and which has a stop in the form of a collar 44 at its lower end.
  • This inner bushing 43 has a bore 45, the axis of which is inclined obliquely forward from the vertical and which is intended for receiving the torsion bar 31 of the turntable 32.
  • the inner bushing 43 is secured in the bushing 30 against twisting, for example by a suitably narrow fit.
  • the embodiment according to FIG. 7 makes it possible for the inner bush 43 to select an optimal material for storage purposes, which usually has an increased price, regardless of the material of the suction head housing 2.
  • FIG. 8 show a second embodiment of an adjustable stop device.
  • one of the ribs is on 30b, which support the bushing 30 on the cover plate 5 of the suction head housing 2, in the present case, a plug-in part 46 provided with a slot on its underside is attached to a rib 30b arranged between the bushing 30 and the hollow connection piece 2a which supports the rotary plate 8 , which seen from above has an approximately trapezoidal shape, as shown in FIG. 8.
  • the inclined side surfaces 47a and 47b of the plug-in part 46 form stop surfaces for the approximately semicircular disk 38, which is fixed in a rotationally fixed manner on the torsion bar 31 and is biased by the spring 41 in the direction of a rest position, as shown in FIG. 8.
  • This plug-in part can be produced as an exchange part, the angles which the two inclined side surfaces 47a and 47b form with a plane determined by the aforementioned slot can be different for different plug-in parts 46 in order to determine the rotational position of the turntable 32 in the rest position and in to determine the maximum deflected position.
  • the two inclined surfaces 47a and 47b do not need to run symmetrically to one another, as shown in FIG. 8, an asymmetrical design is also conceivable, depending on the angles of rotation in the aforementioned end positions.
  • FIG. 8 also shows a further possibility of influencing the angle of rotation positions of the turntable in the end positions.
  • the approximately radially running edges of the approximately semicircular disk 38 are screwed onto these eccentric disks 48, which rest in the end positions of the turntable and thus the disk 38 on the associated stop surfaces 47a and 47b of the plug-in part 46.
  • the corresponding angular positions can be adjusted.

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Claims (17)

1. Tête de succion pour nettoyer des surfaces immergées, notamment le fond des piscines, comprenant un carter (2), ouvert sur sa face inférieure, dans lequel sont montées à rotation au moins une roue avant directrice (3) et des roues arrière (4), une turbine à eau (10), disposée dans le carter (2) et comportant une chambre de turbine présentant une ouverture d'admission (18) disposée du côté de la face inférieure du carter (2), une tubulure pivotante (7) prévue pour le raccordement d'un tuyau souple de succion et traversant la face supérieure du carter (2), et une roue de turbine (21), montée rotative dans la chambre de turbine, qui entraîne au moins une roue avant (3) par l'intermédiaire d'un mécanisme de transmission (22-29, 34-37), caractérisée en ce que la roue de turbine (21) comporte un axe horizontal de rotation, en ce que la chambre de turbine est constituée d'une partie supérieure de carter (11), qui est réalisée d'une pièce avec le carter (2) de tête de succion et dans laquelle débouche la tubulure de raccordement (7), et d'une partie inférieure de carter (12), qui est montée articulée sur le carter (2) de tête de succion et sur laquelle est réalisée l'ouverture d'admission (18), en ce que cette partie inférieure de carter (12) est maintenue par un mécanisme d'enclenchement (16, 17), élastique et amovible, dans la position où elle ferme la chambre de turbine, en ce que l'axe de la roue (21) de la turbine est situé dans le plan de joint (13) des parties (11, 12) du carter de turbine et est accessible librement lorsque la chambre de turbine est ouverte et en ce que l'ouverture d'admission (18) et la tubulure de raccordement (7) sont disposées suivant une ligne qui s'étend pratiquement suivant une corde du cercle circonscrit à la roue de turbine (21).
2. Tête de succion suivant la revendication 1, caractérisée en ce que la partie inférieure (12) du carter de turbine et les roues arrière (4) de la tête de succion (1) sont montées sur une barre d'essieu (15) commune.
3. Tête de succion suivant la revendication 1, caracterisée en ce que:
a) l'arbre (33) de la ou des roues avant (3) de la tête de succion (1) est monté dans un bloc pivotant d'accouplement (32) qui est monté de manière à pouvoir pivoter dans le carter (2), vers un côté et de plus de 90°, autour d'un axe (31) qui s'étend à peu près perpendiculairement à la direction de déplacement de la tête de succion (1) et perpendiculairement à l'arbre (33),
b) le bloc pivotant d'accouplement (32) est maintenu sous précontrainte, à l'aide d'un agencement à ressort de rappel (41), dans une position de repos dans laquelle l'arbre (33) qu'il porte est orienté sous un angle fixé à l'avance par rapport à l'axe (15) des roues arrière (4).
c) l'arbre (33) de la ou des roues avant (3) de la tête de succion (1) est entraîné par l'intermédiaire d'une transmission à engrenages (22-29, 34-37) qui comprend au moins une paire de roues coniques (36, 37), une première roue conique (36) tournant autour de l'axe orientable (31) du bloc pivotant d'accouplement (32) et l'autre roue conique (37), qui engrène avec la précédente, étant solidaire en rotation de la ou des roues avant (3), et
d) chaque roue avant motrice (3) est pourvue d'une surface de roulement qui possède un coefficient élevé d'adhérence et de frottement de glissement.
4. Tête de succion suivant la revendication 1, caractérisée en ce que l'agencement à ressort de rappel comporte au moins un ressort spiral (41).
5. Tête de succion suivant l'une des revendications 3 et 4, caractérisée en ce qu'il est prévu, solidaire en rotation du bloc pivotant d'accouplement (32), une barre pivotante (31) à l'extrémité supérieure de laquelle est monté, solidaire en rotation, un élément de butée (38) qui détermine la position de repos du bloc pivotant d'accouplement (32) et la position déviée maximale de celui-ci.
6. Tête de succion suivant l'une des revendications précédentes, caractérisée en ce qu'un plateau pivotant (8), qui fait saillie vers l'avant et sur les côtés par rapport à la partie avant du carter (2), est monté librement pivotant sur ce carter.
7. Tête de succion suivant la revendication 6, caractérisée en ce que le plateau pivotant (8) dépasse du carter (2) de tête de succion sur un arc de cercle d'au moins 180°.
8. Tête de succion suivant la revendication 6 ou 7, caractérisée en ce que le plateau pivotant (8) est monté, d'une manière déplaçable en pivotement et à l'aide d'une jonction à enclenchement, sur une tubulure creuse (2a) réalisée d'une pièce avec le carter (2) de tête de succion et dépassant de celui-ci vers le haut.
9. Tête de succion suivant l'une des revendications 5 à 8, caractérisée en ce qu'un disque excentrique (43), qui constitue une contre-butée pour l'élément de butée (38), est emboîté sur la tubulure creuse (2a).
10. Tête de succion suivant l'une des revendications 5 à 9, caractérisé en ce que l'élément de butée est un disque (38), en forme de secteur circulaire, sur le contour périphérique duquel est accroché le ressort spiral (41).
11. Tête de succion suivant l'une des revendications 3 à 9, caractérisée en ce que, dans la transmission à engrenages, des roues coniques (23, 35; 27, 29) sont réunies entre elles par des manchons dans lesquels sont engagés, par complémentarité de formes et sous application d'un effort, des tronçons d'axe réalisés sur les roues coniques indiquées.
12. Tête de succion suivant l'une des revendications 3 à 11, caractérisée en ce que la transmission à engrenages comprend une barre centrale coudée qui est fixée sur le carter (2) de tête de succion par des éléments de fixation (2b, 2c, 30a) à enclenchement.
13. Tête de succion suivant l'une des revendications 3 à 12, comportant deux roues avant directrices, caractérisée en ce que les deux roues avant (3) sont montées sur un arbre (33) commun, en étant solidaires de celui-ci en rotation, et en ce que l'axe pivotant (31) du bloc pivotant d'accouplement (32) est incliné, par rapport à la verticale, légèrement vers l'avant.
14. Tête de succion suivant la revendication 13, caractérisée en ce que le carter (2) comprend une plaque de recouvrement (5) qui est traversée par un manchon (30) réalisé d'une pièce avec le carter (2) et en ce qu'il est monté de manière fixe dans ce manchon (30) une douille intérieure (43) qui comporte un alésage (45) dont l'axe est légèrement incliné par rapport à la verticale vers le côté avant de la tête de succion (1).
15. Tête de succion suivant la revendication 14, caractérisé en ce que la douille intérieure (43) est constituée d'une matière autre que celle du carter (2) et particulièrement adaptée en tant que palier.
16. Tête de succion suivant la revendication 10, caractérisée en ce que des disques excentriques (48) sont fixés de manière réglable dans la zone des bords du disque en forme de secteur (38) qui s'étendent radialement, le contour périphérique de ces disques excentriques pouvant être déplacé en avant desdits bords.
17. Tête de succion suivant l'une des revendications 5 à 8, caractérisée en ce qu'il est prévu, emboîtée de manière fixe sur le carter (2), une pièce d'emboîtement (46), à section trapézoïdale, qui comporte des surfaces de contre-butée (47a, 47b) pour l'élément de butée (38).
EP88117338A 1988-08-20 1988-10-18 Tête de succion pour nettoyer des surfaces immergées Expired - Lifetime EP0356577B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AT88117338T ATE62050T1 (de) 1988-08-20 1988-10-18 Saugkopf zum reinigen untergetauchter flaechen.
CA000582780A CA1312709C (fr) 1988-08-20 1988-11-10 Appareil de nettoyage automatique pour piscine
AU28363/89A AU608726B2 (en) 1988-08-20 1989-01-11 An automatic swimming pool cleaner
BR898900920A BR8900920A (pt) 1988-08-20 1989-02-28 Cabecote de aspiracao para a limbeza de superficies submersas

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP88113599 1988-08-20
EP88113599 1988-08-20

Publications (2)

Publication Number Publication Date
EP0356577A1 EP0356577A1 (fr) 1990-03-07
EP0356577B1 true EP0356577B1 (fr) 1991-03-27

Family

ID=8199218

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88117338A Expired - Lifetime EP0356577B1 (fr) 1988-08-20 1988-10-18 Tête de succion pour nettoyer des surfaces immergées

Country Status (5)

Country Link
US (1) US4920599A (fr)
EP (1) EP0356577B1 (fr)
DE (1) DE3862192D1 (fr)
ES (1) ES2021813B3 (fr)
ZA (1) ZA895548B (fr)

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Also Published As

Publication number Publication date
US4920599A (en) 1990-05-01
DE3862192D1 (de) 1991-05-02
ES2021813B3 (es) 1991-11-16
EP0356577A1 (fr) 1990-03-07
ZA895548B (en) 1990-07-25

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