EP3554778B1 - Handheld body rasor - Google Patents

Handheld body rasor Download PDF

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Publication number
EP3554778B1
EP3554778B1 EP17822396.2A EP17822396A EP3554778B1 EP 3554778 B1 EP3554778 B1 EP 3554778B1 EP 17822396 A EP17822396 A EP 17822396A EP 3554778 B1 EP3554778 B1 EP 3554778B1
Authority
EP
European Patent Office
Prior art keywords
cutting
suction
cutting block
block
razor
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.)
Active
Application number
EP17822396.2A
Other languages
German (de)
French (fr)
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EP3554778A1 (en
Inventor
Arnaud Grienay
Martial Maisonneuve
Jacky Chelle
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.)
SEB SA
Original Assignee
SEB SA
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Publication of EP3554778A1 publication Critical patent/EP3554778A1/en
Application granted granted Critical
Publication of EP3554778B1 publication Critical patent/EP3554778B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B19/00—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
    • B26B19/02—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers of the reciprocating-cutter type
    • B26B19/04—Cutting heads therefor; Cutters therefor; Securing equipment thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B19/00—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
    • B26B19/38—Details of, or accessories for, hair clippers, or dry shavers, e.g. housings, casings, grips, guards
    • B26B19/3853—Housing or handle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B19/00—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
    • B26B19/38—Details of, or accessories for, hair clippers, or dry shavers, e.g. housings, casings, grips, guards
    • B26B19/3873—Electric features; Charging; Computing devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B19/00—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
    • B26B19/38—Details of, or accessories for, hair clippers, or dry shavers, e.g. housings, casings, grips, guards
    • B26B19/44—Suction means for collecting severed hairs or for the skin to be shaved
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B19/00—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
    • B26B19/38—Details of, or accessories for, hair clippers, or dry shavers, e.g. housings, casings, grips, guards
    • B26B19/48—Accessory implements for carrying out a function other than cutting hair, e.g. attachable appliances for manicuring

Definitions

  • the present invention relates generally to a body trimmer, or hand trimmer, used for cutting hair or hair.
  • An aim of the present invention is to respond to the drawbacks of the prior art mentioned above and in particular, first of all, to provide a body trimmer with a cutting block and suction means which is easy to use. , to be cleaned and which has good suction capacities.
  • the mower according to the above implementation therefore has a cutting block which conforms to an outer surface of the body.
  • the mower remains practical and easy to handle, as the cutting block is not protruding.
  • the cutting block is arranged outside the elongated body, it is not exposed to particles, hair and bristles sucked up and stored in the reservoir formed in the inner portion of the tube formed by the body.
  • the cutting block remains clean, in particular its attachment interface with the body, which enables reliable operation of the coupling interface.
  • the narrowed section makes it possible to advantageously create an acceleration of the suction flow, at the level of the suction mouth.
  • the cutting block is fixed on the outer surface of the elongated body. It is possible to envisage direct attachment or by means of legs or mobile mechanisms, but the cutting block is located outside the elongated tube, and housed at the level of the narrowed section, so as not to create a protuberance.
  • the body trimmer comprises first wired connection means for providing an electrical connection with a power cord so as to supply the cutting unit and the suction unit, and the cutting unit is removable and comprises second connection means, to be able to connect directly with said power cord when the cutting unit is detached from the mower.
  • the body trimmer has, when the cutting block is fixed to the body, main connection means (the first connection means), for common and centralized supply of the cutting block and the cutting block. aspiration.
  • the cutting unit has its own and individual connection means, to allow it to be connected with the power cord, which allows the cutting unit to be used independently to carry out specific mowing operations. with great maneuverability when detached from the rest of the mower.
  • the cutting unit can be used independently, but the suction unit remains coupled the body then forms an autonomous suction unit which can suck up cutting waste, for example.
  • the narrowed section of the body which receives the cutting block then forms a suction channel of small section, which opens into the rest of the reservoir of larger section, which contributes to reducing the flow speeds and then let the waste settle in this portion of larger section.
  • said at least one narrowed section forms a recess to house the cutting block.
  • the body has, at the level of the zone receiving the cutting block, a shape complementary to the cutting block in order to receive it without the overall section of the mower exhibiting any appreciable variation in section.
  • said at least one narrowed section forms a counter-shape to the cutting block.
  • the body comprises coupling means arranged outside the elongated tube, to couple the suction unit with the body.
  • coupling means arranged outside the elongated tube, to couple the suction unit with the body.
  • clipping means also with locking means.
  • an area of the first cross section is equal to an area of the second cross section at ⁇ 20%.
  • the first portion forms a suction nozzle.
  • the first portion has a length similar to a length of the cutting block.
  • the cutting block is therefore completely flooded or integrated into the counter-shape of the body, while remaining fixed and located outside the body.
  • the body trimmer comprises a comb
  • the cutting block is arranged to removably receive the comb.
  • the comb is mobile, to allow adjustment of the cutting height.
  • the mower includes means for storing electricity, such as batteries.
  • the realization of the mower according to the invention in at least two, or even three separate monobloc elements, namely the cutting block, the elongated body and the suction unit, the blocks being fitted in a removable manner on the elongated body, allows , by dismantling the assembly, to easily clean each of the constituent elements of the mower, without there being in the elongated body, in particular in its part acting as a reservoir, recesses in which hair or cut hair would be susceptible to become embedded or blocked.
  • the body since the body is in the form of a simple tube, it can be easily cleaned with water without the risk of damaging other parts of the mower which have been detached from it.
  • the cutting and / or suction blocks each in the form of a one-piece assembly that can also be wet without risk of damaging the components.
  • the monobloc nature of the cutting and suction blocks does not exclude that they are made up of an assembly of different components, removable with suitable tools but in normal conditions of use their monobloc nature. corresponds to the fact that they can each be handled, by the end user of the mower, as a whole without risk of dislocation and separation of the elements that compose them.
  • the one-piece nature of the cutting unit does not exclude the possibility of the cutting head being able to form an easily separable sub-assembly, without tools, from the rest of the cutting unit in order, in particular, to facilitate maintenance or repair. change.
  • the cutting unit can, for example, comprise a cutting head driven by an electric cutting motor while the suction unit then comprises a turbine driven by an electric suction motor separate from the cutting motor.
  • the elongated body may comprise at least two electrical conductors extending along the body between, on the one hand, a first pair of front connectors, integral with the elongated body, for connection to two complementary connectors of the body. cutting block and, on the other hand, a second pair of rear connectors, integral with the body elongated, for connection to two complementary connectors of the suction unit.
  • the connectors of the cutting unit are designed to receive the general power cord of the mower.
  • the connectors of the cutting block are arranged in a zone hidden by the body, when the cutting block is coupled to the body.
  • the conductors integrated into the elongated body and the associated connectors make it possible to establish an electrical connection between the suction unit and the cutting unit in order to supply power and / or control the cutting motor.
  • electrical conductors can also be implemented when the power supply to the cutting and suction motors is provided by means of batteries (which then allow use without a wired electrical connection).
  • the electrical conductors can then ensure a transfer of energy between the cutting unit and the suction unit depending on the position of the batteries.
  • the conductors can also allow the cutting motor and / or the suction motor to be controlled from a control member located on the other block. Electrical conductors can also provide energy transfer as part of battery charging.
  • the elongated body could include more than two electrical conductors and their connectors, front and rear, associated to make as many electrical connections as necessary between the cutting unit and the suction unit.
  • the electrical conductors may be located inside as well as on either side of the elongated body.
  • the suction unit may comprise means for controlling the operation of the cutting and suction motors.
  • the suction unit may also include, at a suction opening oriented towards the reservoir zone, a filter to stop the hairs and / or hairs sucked up.
  • the elongated body may include at least one window for viewing the contents of the reservoir zone.
  • the cutting head is produced in any suitable manner such as, for example, in the form of a head suitable for shaving the beard.
  • the cutting head is designed for clipping hair or hair and comprises a fixed toothed blade and an oscillating toothed blade driven by the cutting motor.
  • the cutting block and / or the body can then define a front suction mouth situated above the oscillating toothed blade.
  • the figure 1 shows a perspective view of a body trimmer with an elongated body 10 to which is coupled a cutting block 20 at the front and a suction block 30 at the rear.
  • the body trimmer can therefore cut hair or hair and suck them simultaneously.
  • the body 10 forms a tube which is a reservoir in which this waste is stored.
  • the cutting block 20 is removable, and the body 10 has a narrowed section at the level of the zone where the cutting block 20 is fixed, so as to follow the latter as on the figure 2 , where it is seen that the section of the mower is substantially constant over its entire length, in order to provide easy handling, without noticeable variation in section or shape.
  • the mower can be grasped in the same way at the level of the suction unit 30 as at the level of the cutting unit 20 or of the body 10.
  • the body 10 therefore has a counter-form to accommodate the cutting block 20, and this makes it possible to form a suction nozzle 12 which, by virtue of its narrowed section, causes a high speed of the suction air flow, and therefore effective waste suction.
  • the counter-shape of the body 10 therefore makes it possible to accommodate the cutting block 20 on the mower, outside the body 10, which limits the contact between the waste and the cutting block 20, and in particular at the level of the mechanism.
  • anchor which is for example a mechanism with movable legs and a return spring.
  • Such a mechanism can therefore be sensitive to impurities, and docking the cutting block 20 on an external surface of the body 10 makes it possible to limit the exposure of this mechanism to waste which could block it (because this waste is sucked directly inside. body 10).
  • the suction nozzle 12 is arranged opposite the cutting blade of the cutting block 20, at a predetermined distance d, just behind a comb 21 which is movable relative to the cutting block 20, to adjust a cutting height.
  • a power cord 40 is connected to the body trimmer at the rear area, on the suction unit 30, by a removable male or female plug. It is also possible to connect the power cord 40 to the cutting unit 20, at a visible zone 22. figure 3 , to use the cutting block 20 independently, as on the figure 6 , as a precision cutting head for example. It should be noted that the connection zone 22 of the cutting block 20 is hidden by the body 10 when the cutting block 20 is coupled thereto, which leaves only the rear main connection zone visible to the user, and avoids any confusion.
  • the figures 4 and 5 represent the hand of a user disconnecting the mower components from the figure 1 .
  • the cutting block 20 and the suction unit 30 are removably coupled to the body 10. Any type of coupling can be envisaged, by clipping, by locking, with movable tabs which enter into holes of. docking ...
  • the user can first of all disconnect the suction unit 30 from the body 10, as on the figure 4 , and then remove a conical filter 11, located in the body 10, between the suction unit 30 and the reservoir area of the body 10 to prevent waste from passing into the turbine of the suction unit 30.
  • the user can then easily empty the tank, because the body 10 is a through tube, without recesses. It is also possible to wash the body 10.
  • the body 10, which forms a reservoir can be made of transparent material, such as polycarbonate for example.
  • FIG 6 the autonomous use of the cutting block 20 by a user
  • figure 7 the use of the suction module formed by the body 10 coupled only to the suction unit 30.
  • a connector 31 which aims to electrically connect the electrical circuit of the mower to the cutting unit 20 when it is coupled to the body 10.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dry Shavers And Clippers (AREA)
  • Harvester Elements (AREA)

Description

La présente invention concerne de manière générale une tondeuse corporelle, ou tondeuse à main, utilisée pour couper des cheveux ou des poils.The present invention relates generally to a body trimmer, or hand trimmer, used for cutting hair or hair.

Il est connu dans l'art antérieur le document EP2239107(A1 ) qui décrit une tondeuse corporelle avec des moyens d'aspiration. Toutefois, cette tondeuse peut être compliquée à nettoyer, notamment au niveau de l'ancrage du bloc de coupe sur le corps, car ce dernier sert également de réservoir pour stocker des cheveux coupés. De plus, il faut prévoir des ajustements précis entre le bloc de coupe et le corps pour obtenir une bonne étanchéité pour garantir une aspiration efficace. Un tondeuse corporelle est aussi divulguée dans le document US 2006/0230619 .It is known in the prior art the document EP2239107 (A1 ) which describes a body trimmer with suction means. However, this trimmer can be complicated to clean, in particular at the level of the anchoring of the cutting block on the body, because the latter also serves as a reservoir for storing cut hair. In addition, precise adjustments must be made between the cutting block and the body to obtain a good seal to ensure effective suction. A body trimmer is also disclosed in the document US 2006/0230619 .

Un but de la présente invention est de répondre aux inconvénients de l'art antérieur mentionnés ci-dessus et en particulier, tout d'abord, de proposer une tondeuse corporelle avec un bloc de coupe et des moyens d'aspiration qui soit aisée à utiliser, à nettoyer et qui présente de bonnes capacités d'aspiration.An aim of the present invention is to respond to the drawbacks of the prior art mentioned above and in particular, first of all, to provide a body trimmer with a cutting block and suction means which is easy to use. , to be cleaned and which has good suction capacities.

A cet effet, un premier aspect de l'invention concerne une tondeuse corporelle à main comprenant un corps allongé, équipé à l'avant d'un bloc de coupe et, à l'arrière, d'un bloc d'aspiration caractérisée en ce que :

  • le corps allongé est réalisé sous la forme d'un tube allongé comprenant, à proximité de son extrémité avant, une bouche d'aspiration agencée en regard d'une lame de coupe du bloc de coupe,
  • le bloc d'aspiration est adapté pour établir une dépression à l'intérieur du tube allongé au moins dans une zone réservoir, comprise entre les blocs de coupe et d'aspiration, et qui débouche sur la bouche d'aspiration,
  • le corps allongé présente à l'avant au moins une section rétrécie,
  • le bloc de coupe épouse une surface externe du corps allongé, au niveau de ladite au moins une section rétrécie,
  • la tondeuse comprend des premiers moyens de connexion filaires pour assurer une connexion électrique avec un cordon d'alimentation de sorte à alimenter le bloc de coupe et le bloc d'aspiration, et le bloc de coupe est amovible et comprend des deuxièmes moyens de connexion, pour pouvoir se connecter directement avec ledit cordon d'alimentation lorsque le bloc de coupe est détaché de la tondeuse.
To this end, a first aspect of the invention relates to a hand-held body trimmer comprising an elongated body, equipped at the front with a cutting block and, at the rear, with a suction unit characterized in that than :
  • the elongated body is produced in the form of an elongated tube comprising, near its front end, a suction mouth arranged opposite a cutting blade of the cutting block,
  • the suction unit is adapted to establish a depression inside the elongated tube at least in a reservoir zone, between the cutting and suction blocks, and which opens onto the suction mouth,
  • the elongated body has at least one narrowed section at the front,
  • the cutting block conforms to an outer surface of the elongated body, at the level of said at least one narrowed section,
  • the mower comprises first wired connection means for providing an electrical connection with a power cord so as to supply the cutting unit and the suction unit, and the cutting unit is removable and comprises second connection means, to be able to connect directly with said power cord when the cutting unit is detached from the mower.

La tondeuse selon la mise en œuvre ci-dessus présente donc un bloc de coupe qui épouse une surface extérieure du corps. En conjonction avec la section rétrécie, la tondeuse reste pratique et aisée à prendre en main, car le bloc de coupe n'est pas en protubérance. Comme le bloc de coupe est agencé à l'extérieur du corps allongé, il n'est pas exposé aux particules, cheveux et poils aspirés et stockés dans le réservoir formé dans la portion interne du tube formé par le corps. Il en résulte que le bloc de coupe reste propre, en particulier son interface de fixation avec le corps, ce qui permet un fonctionnement fiable de l'interface d'accouplement. De plus, la section rétrécie permet de créer avantageusement une accélération du flux d'aspiration, au niveau de la bouche d'aspiration.The mower according to the above implementation therefore has a cutting block which conforms to an outer surface of the body. In conjunction with the narrowed section, the mower remains practical and easy to handle, as the cutting block is not protruding. As the cutting block is arranged outside the elongated body, it is not exposed to particles, hair and bristles sucked up and stored in the reservoir formed in the inner portion of the tube formed by the body. As a result, the cutting block remains clean, in particular its attachment interface with the body, which enables reliable operation of the coupling interface. In addition, the narrowed section makes it possible to advantageously create an acceleration of the suction flow, at the level of the suction mouth.

Avantageusement, le bloc de coupe est fixé sur la surface externe du corps allongé. On peut envisager une fixation directe ou par l'intermédiaire de pattes ou mécanismes mobiles, mais le bloc de coupe est situé à l'extérieur du tube allongé, et logé au niveau de la section rétrécie, pour ne pas créer de protubérance.Advantageously, the cutting block is fixed on the outer surface of the elongated body. It is possible to envisage direct attachment or by means of legs or mobile mechanisms, but the cutting block is located outside the elongated tube, and housed at the level of the narrowed section, so as not to create a protuberance.

Selon l'invention, la tondeuse corporelle comprend des premiers moyens de connexion filaires pour assurer une connexion électrique avec un cordon d'alimentation de sorte à alimenter le bloc de coupe et le bloc d'aspiration, et le bloc de coupe est amovible et comprend des deuxièmes moyens de connexion, pour pouvoir se connecter directement avec ledit cordon d'alimentation lorsque le bloc de coupe est détaché de la tondeuse. En d'autres termes, la tondeuse corporelle présente, lorsque le bloc de coupe est fixé sur le corps, des moyens de connexion principaux (les premiers moyens de connexion), pour alimenter de manière commune et centralisée le bloc de coupe et le bloc d'aspiration. De plus, le bloc de coupe présente des moyens de connexion propres et individuels, pour lui permettre d'être connecté avec le cordon d'alimentation, ce qui permet de se servir du bloc de coupe de manière autonome pour effectuer des opérations de tonte spécifiques avec une grande maniabilité lorsqu'il est détaché du reste de la tondeuse.According to the invention, the body trimmer comprises first wired connection means for providing an electrical connection with a power cord so as to supply the cutting unit and the suction unit, and the cutting unit is removable and comprises second connection means, to be able to connect directly with said power cord when the cutting unit is detached from the mower. In other words, the body trimmer has, when the cutting block is fixed to the body, main connection means (the first connection means), for common and centralized supply of the cutting block and the cutting block. aspiration. In addition, the cutting unit has its own and individual connection means, to allow it to be connected with the power cord, which allows the cutting unit to be used independently to carry out specific mowing operations. with great maneuverability when detached from the rest of the mower.

On comprend donc de la mise en œuvre ci-dessus que le bloc de coupe peut être utilisé de manière autonome, mais le bloc d'aspiration resté accouplé au corps forme alors une unité d'aspiration autonome qui permet d'aspirer des déchets de coupe par exemple. Il est à noter que la section rétrécie du corps qui reçoit le bloc de coupe forme alors un canal d'aspiration de faible section, qui débouche dans le reste du réservoir de section plus importante, ce qui contribue à diminuer les vitesses d'écoulement et laisser les déchets se déposer alors dans cette portion de plus grande section.It is therefore understood from the above implementation that the cutting unit can be used independently, but the suction unit remains coupled the body then forms an autonomous suction unit which can suck up cutting waste, for example. It should be noted that the narrowed section of the body which receives the cutting block then forms a suction channel of small section, which opens into the rest of the reservoir of larger section, which contributes to reducing the flow speeds and then let the waste settle in this portion of larger section.

Avantageusement, ladite au moins une section rétrécie forme un renfoncement pour loger le bloc de coupe. Autrement dit, le corps présente, au niveau de la zone recevant le bloc de coupe, une forme complémentaire au bloc de coupe pour le recevoir sans que la section globale de la tondeuse ne présente de variation notable de section.Advantageously, said at least one narrowed section forms a recess to house the cutting block. In other words, the body has, at the level of the zone receiving the cutting block, a shape complementary to the cutting block in order to receive it without the overall section of the mower exhibiting any appreciable variation in section.

Avantageusement, ladite au moins une section rétrécie forme une contre-forme au bloc de coupe.Advantageously, said at least one narrowed section forms a counter-shape to the cutting block.

Avantageusement, le corps comprend des moyens d'accouplement agencés à l'extérieur du tube allongé, pour accoupler le bloc d'aspiration avec le corps. On peut envisager des moyens de clipsage (autrement appelés moyens d'emboîtement élastique), avec aussi des moyens de verrouillage.Advantageously, the body comprises coupling means arranged outside the elongated tube, to couple the suction unit with the body. One can consider clipping means (otherwise called elastic interlocking means), also with locking means.

Avantageusement, la zone réservoir présente :

  • une première portion agencée en regard du bloc de coupe,
  • une deuxième portion agencée entre le bloc de coupe et le bloc d'aspiration, et une première section transversale de la tondeuse corporelle au niveau de la première portion est semblable à une deuxième section transversale de la tondeuse corporelle au niveau de la deuxième portion. En d'autres termes, la tondeuse ne présente pas de variation de forme entre une zone avant (où est fixé le bloc de coupe) et le reste du corps.
Advantageously, the reservoir zone has:
  • a first portion arranged opposite the cutting block,
  • a second portion arranged between the cutting block and the suction block, and a first cross section of the body trimmer at the first portion is similar to a second cross section of the body trimmer at the second portion. In other words, the mower has no variation in shape between a front area (where the cutting block is attached) and the rest of the body.

Avantageusement, une surface de la première section transversale est égale à une surface de la deuxième section transversale à ±20%.Advantageously, an area of the first cross section is equal to an area of the second cross section at ± 20%.

Avantageusement, la première portion forme un bec d'aspiration.Advantageously, the first portion forms a suction nozzle.

Avantageusement, la première portion présente une longueur similaire à une longueur du bloc de coupe. Le bloc de coupe est donc complètement noyé ou intégré dans la contre-forme du corps, tout en restant fixé et situé à l'extérieur du corps.Advantageously, the first portion has a length similar to a length of the cutting block. The cutting block is therefore completely flooded or integrated into the counter-shape of the body, while remaining fixed and located outside the body.

Avantageusement, la tondeuse corporelle comprend un peigne, et le bloc de coupe est agencé pour recevoir de manière amovible le peigne.Advantageously, the body trimmer comprises a comb, and the cutting block is arranged to removably receive the comb.

Avantageusement, le peigne est mobile, pour permettre un réglage de la hauteur de coupe.Advantageously, the comb is mobile, to allow adjustment of the cutting height.

Un deuxième aspect de l'invention concerne une tondeuse corporelle à main comprenant un corps allongé équipé à l'avant d'un bloc de coupe et, à l'arrière, d'un bloc d'aspiration caractérisée en ce que :

  • le corps allongé est réalisé sous la forme d'un tube allongé comprenant, à proximité de son extrémité avant, une bouche d'aspiration agencée en regard d'une lame de coupe du bloc de coupe,
  • le bloc d'aspiration est adapté pour établir une dépression à l'intérieur du corps au moins dans une zone réservoir, comprise entre les blocs de coupe et d'aspiration, et qui débouche sur la bouche d'aspiration,
  • la tondeuse corporelle comprend des premiers moyens de connexion filaires pour assurer une connexion électrique avec un cordon d'alimentation de sorte alimenter le bloc de coupe et le bloc d'aspiration,
  • le bloc de coupe est amovible et comprend des deuxièmes moyens de connexion, pour pouvoir se connecter avec ledit cordon d'alimentation lorsque le bloc de coupe est détaché de la tondeuse corporelle. Selon la mise en œuvre ci-dessus, le bloc de coupe peut être utilisé de manière autonome pour effectuer des finitions par exemple, et alors le bloc d'aspiration peut rester accouplé au corps et former une unité d'aspiration pour aspirer des déchets. Autrement dit, le bloc de coupe utilisé de manière autonome peut former une tête de coupe de précision, et il est aisé de connecter aussi bien le bloc de coupe que la tondeuse au cordon d'alimentation, puisque l'interface est identique.
A second aspect of the invention relates to a hand-held body trimmer comprising an elongated body equipped at the front with a cutting block and, at the rear, with a suction unit characterized in that:
  • the elongated body is produced in the form of an elongated tube comprising, near its front end, a suction mouth arranged opposite a cutting blade of the cutting block,
  • the suction unit is adapted to establish a vacuum inside the body at least in a reservoir zone, between the cutting and suction blocks, and which opens onto the suction mouth,
  • the body trimmer comprises first wired connection means for providing an electrical connection with a power cord so as to supply the cutting unit and the suction unit,
  • the cutting unit is removable and comprises second connection means, so as to be able to connect with said power cord when the cutting unit is detached from the body trimmer. According to the above implementation, the cutting block can be used autonomously to perform finishing for example, and then the suction block can remain coupled to the body and form a suction unit for sucking up waste. In other words, the stand-alone used cutting unit can form a precision cutting head, and it is easy to connect both the cutting unit and the mower to the power cord, since the interface is the same.

On peut aussi envisager que la tondeuse comprenne des moyens de stockage de l'électricité, tels que des batteries.It is also conceivable that the mower includes means for storing electricity, such as batteries.

La réalisation de la tondeuse selon l'invention en au moins deux, voire trois éléments monoblocs distincts à savoir, le bloc de coupe, le corps allongé et le bloc d'aspiration, les blocs étant adaptés de manière amovible sur le corps allongé, permet, par un démontage de l'ensemble, de nettoyer facilement chacun des éléments constitutifs de la tondeuse, sans qu'il existe dans le corps allongé, notamment dans sa partie faisant office de réservoir, de recoins dans lesquels des cheveux ou poils coupés seraient susceptibles de s'incruster ou se bloquer. De plus, dans la mesure où le corps se présente sous la forme d'un simple tube, il peut être facilement nettoyé à l'eau sans risque d'endommager les autres composants de la tondeuse qui en auront été détachés.The realization of the mower according to the invention in at least two, or even three separate monobloc elements, namely the cutting block, the elongated body and the suction unit, the blocks being fitted in a removable manner on the elongated body, allows , by dismantling the assembly, to easily clean each of the constituent elements of the mower, without there being in the elongated body, in particular in its part acting as a reservoir, recesses in which hair or cut hair would be susceptible to become embedded or blocked. In addition, since the body is in the form of a simple tube, it can be easily cleaned with water without the risk of damaging other parts of the mower which have been detached from it.

Il est possible de réaliser, les blocs de coupe et/ou d'aspiration chacun sous la forme d'un ensemble monobloc pouvant également être passé à l'eau sans risque d'en endommager les constituants. Au sens de l'invention, le caractère monobloc des blocs de coupe et d'aspiration n'exclut pas qu'ils soient constitués par un assemblage, de différents composants, démontable avec un outillage adapté mais en condition normale d'utilisation leur caractère monobloc correspond au fait qu'ils peuvent être chacun manipulés, par l'utilisateur final de la tondeuse, comme un tout sans risque de dislocation et de séparation des éléments qui les composent. A cet égard, le caractère monobloc du bloc de coupe n'exclut pas que la tête de coupe puisse former un sous ensemble facilement séparable, sans outillage, du reste du bloc de coupe afin, notamment, d'en faciliter l'entretien ou le changement.It is possible to produce the cutting and / or suction blocks each in the form of a one-piece assembly that can also be wet without risk of damaging the components. For the purposes of the invention, the monobloc nature of the cutting and suction blocks does not exclude that they are made up of an assembly of different components, removable with suitable tools but in normal conditions of use their monobloc nature. corresponds to the fact that they can each be handled, by the end user of the mower, as a whole without risk of dislocation and separation of the elements that compose them. In this regard, the one-piece nature of the cutting unit does not exclude the possibility of the cutting head being able to form an easily separable sub-assembly, without tools, from the rest of the cutting unit in order, in particular, to facilitate maintenance or repair. change.

Le bloc de coupe peut, par exemple, comprendre une tête de coupe entraînée par un moteur de coupe électrique tandis que le bloc d'aspiration comprend alors une turbine entraînée par un moteur d'aspiration électrique distinct du moteur de coupe.The cutting unit can, for example, comprise a cutting head driven by an electric cutting motor while the suction unit then comprises a turbine driven by an electric suction motor separate from the cutting motor.

Pour l'alimentation électrique, le corps allongé peut comprendre au moins deux conducteurs électriques s'étendant le long du corps entre, d'une part, une première paire de connecteurs avant, solidaires du corps allongé, pour le raccordement à deux connecteurs complémentaires du bloc de coupe et, d'autre part, une deuxième paire de connecteurs arrière, solidaires du corps allongé, pour le raccordement à deux connecteurs complémentaires du bloc d'aspiration.For the power supply, the elongated body may comprise at least two electrical conductors extending along the body between, on the one hand, a first pair of front connectors, integral with the elongated body, for connection to two complementary connectors of the body. cutting block and, on the other hand, a second pair of rear connectors, integral with the body elongated, for connection to two complementary connectors of the suction unit.

Avantageusement, les connecteurs du bloc de coupe sont agencés pour recevoir le cordon d'alimentation général de la tondeuse.Advantageously, the connectors of the cutting unit are designed to receive the general power cord of the mower.

Avantageusement, les connecteurs du bloc de coupe sont agencés dans une zone cachée par le corps, lorsque le bloc de coupe est accouplé au corps.Advantageously, the connectors of the cutting block are arranged in a zone hidden by the body, when the cutting block is coupled to the body.

Les conducteurs intégrés au corps allongé et les connecteurs associés permettent d'établir une liaison électrique entre le bloc d'aspiration et le bloc de coupe afin d'assurer l'alimentation et/ou la commande du moteur de coupe. Il est à noter que de tels conducteurs électriques peuvent également être mis en œuvre lorsque l'alimentation des moteurs de coupe et d'aspiration est assurée au moyen de batteries (qui permettent alors une utilisation sans connexion électrique filaire). Les conducteurs électriques peuvent alors assurer un transfert de l'énergie entre le bloc de coupe et le bloc d'aspiration selon la position des batteries. Les conducteurs peuvent également permettre la commande du moteur de coupe et/ou du moteur d'aspiration à partir d'un organe de commande situé sur l'autre bloc. Les conducteurs électriques peuvent également assurer le transfert d'énergie dans le cadre de la charge des batteries. Bien entendu, le corps allongé pourrait comprendre plus de deux conducteurs électriques et leurs connecteurs, avant et arrière, associés pour réaliser autant de liaisons électriques que nécessaires entre le bloc de coupe et le bloc d'aspiration.The conductors integrated into the elongated body and the associated connectors make it possible to establish an electrical connection between the suction unit and the cutting unit in order to supply power and / or control the cutting motor. It should be noted that such electrical conductors can also be implemented when the power supply to the cutting and suction motors is provided by means of batteries (which then allow use without a wired electrical connection). The electrical conductors can then ensure a transfer of energy between the cutting unit and the suction unit depending on the position of the batteries. The conductors can also allow the cutting motor and / or the suction motor to be controlled from a control member located on the other block. Electrical conductors can also provide energy transfer as part of battery charging. Of course, the elongated body could include more than two electrical conductors and their connectors, front and rear, associated to make as many electrical connections as necessary between the cutting unit and the suction unit.

Selon une variante de réalisation de l'invention, les conducteurs électriques pourront être situés à l'intérieur ainsi que de part et autre du corps allongé.According to an alternative embodiment of the invention, the electrical conductors may be located inside as well as on either side of the elongated body.

Selon une caractéristique de l'invention, le bloc d'aspiration pourra comprendre des moyens de commande du fonctionnement des moteurs de coupe et d'aspiration.According to one characteristic of the invention, the suction unit may comprise means for controlling the operation of the cutting and suction motors.

Afin d'éviter un encrassement de la turbine, le bloc d'aspiration peut également comprendre, au niveau d'une ouverture d'aspiration orientée vers la zone réservoir, un filtre d'arrêt des poils et/ou cheveux aspirés.In order to avoid fouling of the turbine, the suction unit may also include, at a suction opening oriented towards the reservoir zone, a filter to stop the hairs and / or hairs sucked up.

Afin de permettre à un utilisateur de la tondeuse de contrôler le niveau de remplissage de la zone réservoir, le corps allongé peut comprendre au moins une fenêtre de visualisation du contenu de la zone réservoir.In order to allow a user of the mower to control the filling level of the reservoir zone, the elongated body may include at least one window for viewing the contents of the reservoir zone.

Selon l'invention, la tête de coupe est réalisée de toute manière appropriée telle que par exemple sous la forme d'une tête adaptée pour assurer un rasage de la barbe.According to the invention, the cutting head is produced in any suitable manner such as, for example, in the form of a head suitable for shaving the beard.

Selon une autre forme possible de réalisation de l'invention, la tête de coupe est conçue pour la tonte des cheveux ou des poils et comprend une lame dentée fixe et une lame dentée oscillante entraînée par le moteur de coupe. Le bloc de coupe et/ou le corps pourront alors définir une bouche d'aspiration avant située au dessus de la lame dentée oscillante.According to another possible embodiment of the invention, the cutting head is designed for clipping hair or hair and comprises a fixed toothed blade and an oscillating toothed blade driven by the cutting motor. The cutting block and / or the body can then define a front suction mouth situated above the oscillating toothed blade.

D'autres caractéristiques et avantages de la présente invention apparaîtront plus clairement à la lecture de la description détaillée qui suit d'un mode de réalisation de l'invention donné à titre d'exemple nullement limitatif et illustré par les dessins annexés, dans lesquels :

  • la figure 1 représente une vue en perspective d'une tondeuse corporelle selon la présente invention, comprenant un corps, un bloc de coupe à l'avant, et un bloc d'aspiration à l'arrière ;
  • la figure 2 représente une vue de côté de la tondeuse de la figure 1 ;
  • la figure 3 représente la tondeuse de la figure 1 ou 2 avec le bloc de coupe détaché, le bloc d'aspiration étant resté accouplé au corps ;
  • la figure 4 représente la main d'un utilisateur en train de détacher le bloc d'aspiration du corps de la tondeuse de la figure 1 ;
  • la figure 5 représente la tondeuse de la figure 1 avec le bloc de coupe et le bloc d'aspiration détachés du corps ;
  • la figure 6 représente l'utilisation autonome du bloc de coupe de la tondeuse de la figure 1, en tant que tête de coupe de précision ;
  • la figure 7 représente l'utilisation du bloc d'aspiration resté accouplé au corps, en tant qu'unité d'aspiration.
Other characteristics and advantages of the present invention will emerge more clearly on reading the following detailed description of an embodiment of the invention given by way of non-limiting example and illustrated by the appended drawings, in which:
  • the figure 1 shows a perspective view of a body trimmer according to the present invention, comprising a body, a cutting block at the front, and a suction block at the rear;
  • the figure 2 shows a side view of the lawn mower figure 1 ;
  • the figure 3 represents the mower of the figure 1 or 2 with the cutting block detached, the suction block having remained coupled to the body;
  • the figure 4 represents the hand of a user detaching the suction unit from the mower body of the figure 1 ;
  • the figure 5 represents the mower of the figure 1 with the cutting block and the suction unit detached from the body;
  • the figure 6 represents the autonomous use of the mower cutting unit in the figure 1 , as a precision cutting head;
  • the figure 7 represents the use of the suction unit which remains coupled to the body, as a suction unit.

La figure 1 représente une vue en perspective d'une tondeuse corporelle avec un corps 10 allongé auquel est accouplé un bloc de coupe 20 à l'avant et un bloc d'aspiration 30 à l'arrière. La tondeuse corporelle peut donc couper des poils ou des cheveux et les aspirer de manière simultanée. Afin de stocker les déchets aspirés, le corps 10 forme un tube qui est un réservoir dans lequel ces déchets sont stockés.The figure 1 shows a perspective view of a body trimmer with an elongated body 10 to which is coupled a cutting block 20 at the front and a suction block 30 at the rear. The body trimmer can therefore cut hair or hair and suck them simultaneously. In order to store the sucked up waste, the body 10 forms a tube which is a reservoir in which this waste is stored.

Comme on le voit sur les figures 2 et 3, le bloc de coupe 20 est amovible, et le corps 10 présente une section rétrécie au niveau de la zone où se fixe le bloc de coupe 20, de sorte à épouser ce dernier comme sur la figure 2, où on voit que la section de la tondeuse est sensiblement constante sur toute sa longueur, afin de proposer une prise en main aisée, sans variation notable de section ou de forme.As seen on figures 2 and 3 , the cutting block 20 is removable, and the body 10 has a narrowed section at the level of the zone where the cutting block 20 is fixed, so as to follow the latter as on the figure 2 , where it is seen that the section of the mower is substantially constant over its entire length, in order to provide easy handling, without noticeable variation in section or shape.

Ainsi, sur la figure 2, on peut saisir la tondeuse de la même façon au niveau du bloc d'aspiration 30 qu'au niveau du bloc de coupe 20 ou encore du corps 10.So on the figure 2 , the mower can be grasped in the same way at the level of the suction unit 30 as at the level of the cutting unit 20 or of the body 10.

De plus, de manière nettement visible sur la figure 3, le corps 10 présente donc une contre forme pour accueillir le bloc de coupe 20, et cela permet de former un bec d'aspiration 12 qui, de par sa section rétrécie, provoque une vitesse élevée du flux d'air d'aspiration, et donc une aspiration efficace des déchets. La contre forme du corps 10 permet donc d'accueillir le bloc de coupe 20 sur la tondeuse, à l'extérieur du corps 10, ce qui limite les contacts entre les déchets et le bloc de coupe 20, et en particulier au niveau du mécanisme d'ancrage, qui est par exemple un mécanisme avec des pattes mobiles et un ressort de rappel. Un tel mécanisme peut donc être sensible aux impuretés, et accoster le bloc de coupe 20 sur une surface externe du corps 10 permet de limiter l'exposition de ce mécanisme aux déchets qui pourraient le bloquer (car ces déchets sont aspirés directement à l'intérieur du corps 10).In addition, clearly visible on the figure 3 , the body 10 therefore has a counter-form to accommodate the cutting block 20, and this makes it possible to form a suction nozzle 12 which, by virtue of its narrowed section, causes a high speed of the suction air flow, and therefore effective waste suction. The counter-shape of the body 10 therefore makes it possible to accommodate the cutting block 20 on the mower, outside the body 10, which limits the contact between the waste and the cutting block 20, and in particular at the level of the mechanism. anchor, which is for example a mechanism with movable legs and a return spring. Such a mechanism can therefore be sensitive to impurities, and docking the cutting block 20 on an external surface of the body 10 makes it possible to limit the exposure of this mechanism to waste which could block it (because this waste is sucked directly inside. body 10).

De plus, comme on le voit figure 2, le bec d'aspiration 12 est agencé en regard de la lame de coupe du bloc de coupe 20, à une distance prédéterminée d, juste en arrière d'un peigne 21 qui est mobile par rapport au bloc de coupe 20, pour régler une hauteur de coupe.In addition, as we see figure 2 , the suction nozzle 12 is arranged opposite the cutting blade of the cutting block 20, at a predetermined distance d, just behind a comb 21 which is movable relative to the cutting block 20, to adjust a cutting height.

Un cordon d'alimentation 40 est connecté à la tondeuse corporelle au niveau de la zone arrière, sur le bloc d'aspiration 30, par une prise mâle ou femelle amovible. Il est également possible de brancher le cordon d'alimentation 40 sur le bloc de coupe 20, au niveau d'une zone 22 visible figure 3, pour utiliser le bloc de coupe 20 de manière autonome, comme sur la figure 6, en tant que tête de coupe de précision par exemple. Il est à noter que la zone 22 de connexion du bloc de coupe 20 est cachée par le corps 10 lorsque le bloc de coupe 20 y est accouplé, ce qui ne laisse que la zone de connectique principale arrière visible pour l'utilisateur, et évite toute confusion.A power cord 40 is connected to the body trimmer at the rear area, on the suction unit 30, by a removable male or female plug. It is also possible to connect the power cord 40 to the cutting unit 20, at a visible zone 22. figure 3 , to use the cutting block 20 independently, as on the figure 6 , as a precision cutting head for example. It should be noted that the connection zone 22 of the cutting block 20 is hidden by the body 10 when the cutting block 20 is coupled thereto, which leaves only the rear main connection zone visible to the user, and avoids any confusion.

Les figures 4 et 5 représentent la main d'un utilisateur en train de désaccoupler les composants de la tondeuse de la figure 1. En effet, le bloc de coupe 20 et le bloc d'aspiration 30 sont accouplés de manière amovible au corps 10. On peut envisager tout type d'accouplement, par clipsage, par verrouillage, avec des pattes mobiles qui entrent dans des trous d'accostage...The figures 4 and 5 represent the hand of a user disconnecting the mower components from the figure 1 . Indeed, the cutting block 20 and the suction unit 30 are removably coupled to the body 10. Any type of coupling can be envisaged, by clipping, by locking, with movable tabs which enter into holes of. docking ...

Pour vider les déchets qui ont été aspirés par la tondeuse au cours de son utilisation, l'utilisateur peut tout d'abord désaccoupler le bloc d'aspiration 30 du corps 10, comme sur la figure 4, et ensuite retirer un filtre 11 conique, situé dans le corps 10, entre le bloc d'aspiration 30 et la zone réservoir du corps 10 pour empêcher les déchets de passer dans la turbine du bloc d'aspiration 30. L'utilisateur peut alors vider aisément le réservoir, car le corps 10 est un tube traversant, sans recoins. Il est également possible de laver le corps 10. Pour plus de facilité, le corps 10, qui forme réservoir, peut être réalisé en matière transparente, comme du polycarbonate par exemple.To empty the waste which has been sucked up by the mower during its use, the user can first of all disconnect the suction unit 30 from the body 10, as on the figure 4 , and then remove a conical filter 11, located in the body 10, between the suction unit 30 and the reservoir area of the body 10 to prevent waste from passing into the turbine of the suction unit 30. The user can then easily empty the tank, because the body 10 is a through tube, without recesses. It is also possible to wash the body 10. For greater ease, the body 10, which forms a reservoir, can be made of transparent material, such as polycarbonate for example.

On voit donc figure 6 l'utilisation autonome du bloc de coupe 20 par un utilisateur, et ensuite figure 7 l'utilisation du module d'aspiration formé par le corps 10 accouplé seulement au bloc d'aspiration 30. On voit sur cette dernière figure 7 une connectique 31 qui a pour objet de connecter électriquement le circuit électrique de la tondeuse au bloc de coupe 20 lorsqu'il est accouplé au corps 10.So we see figure 6 the autonomous use of the cutting block 20 by a user, and then figure 7 the use of the suction module formed by the body 10 coupled only to the suction unit 30. It can be seen on the latter figure 7 a connector 31 which aims to electrically connect the electrical circuit of the mower to the cutting unit 20 when it is coupled to the body 10.

On comprendra que diverses modifications et/ou améliorations évidentes pour l'homme du métier peuvent être apportées aux différents modes de réalisation de l'invention décrits dans la présente description sans sortir du cadre de l'invention défini par les revendications annexées.It will be understood that various modifications and / or improvements obvious to those skilled in the art can be made to the various modes. of the invention described in the present description without departing from the scope of the invention defined by the appended claims.

Claims (10)

  1. Handheld body razor comprising a long body (10), provided with a cutting block (20) at the front and a suction block (30) at the rear, characterised in that:
    - the long body (10) is produced in the form of a long tube comprising, close to the front end thereof, a suction mouth arranged facing a cutting blade of the cutting block (20),
    - the suction block (30) is designed to create a depression inside the long tube at least in a reservoir area, between the cutting and suction blocks, and which runs into the suction mouth,
    - the long body (10) has at least one reduced section, at the front,
    - the cutting block (20) moulds an outer surface of the long body, at the level of said at least one reduced section,
    - the razor further comprises first wired connection means for ensuring an electrical connection with a power cord (40) so as to supply the cutting block (20) and the suction block (30), wherein the cutting block (20) is removable and comprises second connection means, to be able to be directly connected to said power cord (40) when the cutting block (20) is detached from the razor.
  2. Body razor according to the preceding claim, wherein said at least one reduced section forms a reinforcement to house the cutting block (20).
  3. Body razor according to one of the preceding claims, wherein said at least one reduced section forms a counterblock to the cutting block (20).
  4. Body razor according to one of the preceding claims, wherein the body (10) comprises coupling means arranged at the outside of the long tube, to couple the suction block (30) with the body (10).
  5. Body razor according to one of the preceding claims, wherein the reservoir area has:
    - a first portion arranged facing the cutting block (20),
    - a second portion arranged between the cutting block (20) and the suction block (30),
    wherein a first transversal section of the body razor at the level of the first portion is similar to a second transversal section of the body razor at the level of the second portion.
  6. Body razor according to the preceding claim, wherein a surface of the first transversal section is equal to a surface of the second transversal section at ±20%.
  7. Body razor according to one of claims 6 or 7, wherein the first portion forms a suction nozzle (12).
  8. Body razor according to one of claims 6 to 8, wherein the first portion has a length similar to a length of the cutting block (20).
  9. Body razor according to one of the preceding claims, comprising a comb (21), and wherein the cutting block (20) is arranged to removably receive the comb (21).
  10. Body razor according to the preceding claim, wherein the comb (21) is mobile, to allow an adjustment of the cutting height.
EP17822396.2A 2016-12-16 2017-12-11 Handheld body rasor Active EP3554778B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1662683A FR3060431B1 (en) 2016-12-16 2016-12-16 BODY MOWER
PCT/FR2017/053502 WO2018109349A1 (en) 2016-12-16 2017-12-11 Handheld body rasor

Publications (2)

Publication Number Publication Date
EP3554778A1 EP3554778A1 (en) 2019-10-23
EP3554778B1 true EP3554778B1 (en) 2020-11-04

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Application Number Title Priority Date Filing Date
EP17822396.2A Active EP3554778B1 (en) 2016-12-16 2017-12-11 Handheld body rasor

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EP (1) EP3554778B1 (en)
CN (2) CN208514535U (en)
ES (1) ES2835254T3 (en)
FR (1) FR3060431B1 (en)
RU (1) RU2741943C2 (en)
WO (1) WO2018109349A1 (en)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060230619A1 (en) * 2005-04-18 2006-10-19 Rovcal, Inc. Hair clipper with vacuum collection system
JP4462162B2 (en) * 2005-10-11 2010-05-12 パナソニック電工株式会社 Hair cutter
JP4501853B2 (en) * 2005-12-20 2010-07-14 パナソニック電工株式会社 Hair cutter
JP4538676B2 (en) * 2008-02-25 2010-09-08 パナソニック電工株式会社 Hair cutter
FR2943937B1 (en) 2009-04-02 2011-04-08 Seb Sa BODY MOWER
CN201783950U (en) * 2010-04-15 2011-04-06 罗履文 Vacuum cleaning haircutting device
CN205380696U (en) * 2015-12-28 2016-07-13 东莞市康发特塑胶制品有限公司 But automatic dust absorption electric clipper of formula is dismantled in components of a whole that can function independently
CN107309916B (en) * 2016-06-06 2019-02-01 毛妈妈（苏州）电器科技有限公司 Negative pressure turbine air operated machine

Non-Patent Citations (1)

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Title
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Also Published As

Publication number Publication date
RU2019117113A3 (en) 2021-01-18
FR3060431A1 (en) 2018-06-22
ES2835254T3 (en) 2021-06-22
WO2018109349A1 (en) 2018-06-21
CN108202349A (en) 2018-06-26
EP3554778A1 (en) 2019-10-23
CN208514535U (en) 2019-02-19
RU2019117113A (en) 2021-01-18
FR3060431B1 (en) 2019-06-07
RU2741943C2 (en) 2021-01-29

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