FR3060431B1 - BODY MOWER - Google Patents

Abstract

Hand-held body mower comprising an elongated body (10) equipped at the front of a cutting block (20) and, at the rear, a suction unit (30) characterized in that: - the body (10) is in the form of an elongated tube comprising, near its front end, a suction mouth arranged facing a cutting blade of the cutting block (20), - the block of aspiration (30) is adapted to establish a depression within the body (10) at least in a reservoir zone, between the cutting and suction blocks, and which opens onto the suction mouth, - the body (10) has at least one narrowed section at the front for receiving the cutting block (20) on an outer surface of the elongated body (10).

Description

BODY MOWER

The present invention generally relates to a body mower, or hand mower, used to cut hair or hair.

It is known in the prior art document EP2239107 (A1) which describes a body mower with suction means. However, this mower can be complicated to clean, especially at the anchoring of the cutting block on the body, because it 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 efficient suction.

An object of the present invention is to meet the drawbacks of the prior art mentioned above and in particular, first of all, to propose a body mower with a cutting block and suction means that is easy to use. , clean and has good suction capabilities. For this purpose, a first aspect of the invention relates to a hand-held body mower comprising an elongate body, equipped at the front of a cutting block and, at the rear, of a suction unit characterized in that that: - the elongate body is made in the form of an elongate tube comprising, near its front end, a suction mouth arranged opposite a cutting blade of the cutting block, - the suction block is adapted to establish a depression within 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 present at the front at least one narrowed section, the cutting block conforms to an outer surface of the elongate body, at said at least one narrowed section.

The mower according to the implementation above thus has a cutting block that fits an outer surface of the body. In conjunction with the narrowed section, the mower remains practical and easy to handle, because the cutting block is not protruding. Since the cutting block is arranged outside the elongate body, it is not exposed to the particles, hair and hairs 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 interface with the body, which allows reliable operation of the coupling interface. In addition, the narrowed section advantageously creates an acceleration of the suction flow at the suction mouth.

Advantageously, the cutting block is fixed on the outer surface of the elongated body. It is possible to envisage a direct attachment or by means of lugs or movable mechanisms, but the cutting block is situated outside the elongated tube, and housed at the level of the narrowed section, so as not to create a protuberance.

Advantageously, the body trimmer comprises first wire connection means for providing an electrical connection with a power cord so as to feed the cutting block and the suction block, and the cutting block is removable and comprises second means. connection, to connect directly with said power cord when the cutting block is detached from the mower. In other words, the body mower has, when the cutting block is fixed on the body, the main connection means (the first connection means), for common and centralized supply the cutting block and the block d suction. In addition, the cutter block has clean and individual connection means to allow it to be connected with the power cord, allowing the cutter block to be used independently to perform specific mowing operations. with great maneuverability when detached from the rest of the mower.

It is therefore understood from the above implementation that the cutting block can be used autonomously, but the suction block remained coupled to the body then forms a self-contained suction unit that allows to suck cutting waste. for example. It should be noted that the narrowed section of the body that receives the cutting block then forms a suction channel of small section, which opens into the remainder of the tank of larger section, which contributes to reducing the flow velocities and let the waste settle in this portion of larger section.

Advantageously, said at least one narrowed section forms a recess for accommodating the cutting block. In other words, the body has, at the level of the zone receiving the cutting block, a complementary shape to the cutting block to receive it without the overall section of the mower has significant section variation.

Advantageously, said at least one narrowed section forms a counter-shape to the cutting block.

Advantageously, the body comprises coupling means arranged outside the elongate tube for coupling the suction block with the body. Clipping means (otherwise called resilient interlocking means) can also be envisaged, with also locking means.

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 transverse section of the body mower at the level of the first portion is similar to a second cross section of the body mower at the second portion. In other words, the mower does not have any shape variation between a front zone (where the cutting block is fixed) and the rest of the body.

Advantageously, a surface of the first cross section is equal to a surface of the second cross-section of ± 20%.

Advantageously, the first portion forms a suction nozzle.

Advantageously, the first portion has a length similar to a length of the cutting block. The cutting block is completely embedded or integrated into the counter-shape of the body, while remaining fixed and located outside the body.

Advantageously, the body mower comprises a comb, and the cutting block is arranged to removably receive the comb.

Advantageously, the comb is movable to allow adjustment of the cutting height.

A second aspect of the invention relates to a hand-held body mower comprising an elongated body equipped at the front of a cutting block and, at the rear, a suction unit characterized in that: - the body elongate is formed in the form of an elongate tube comprising, near its front end, a suction mouth arranged opposite a cutting blade of the cutting block, the suction block is adapted to establish a depression within the body at least in a reservoir zone, between the cutting and suction blocks, and which opens on the suction mouth, the body mower includes first wired connection means for providing a connection electrical with a power cord so feed the cutting block and the suction block, - the cutting block is removable and includes second connection means, to be able to connect with said power cord when the block of co upe is detached from the body mower. According to the implementation above, the cutting block can be used autonomously to perform finishing, for example, and then the suction unit can remain coupled to the body and form a suction unit to suck waste. In other words, the cutter block used independently can form a precision cutting head, and it is easy to connect both the cutting block and the mower to the power cord, since the interface is identical.

It can also be envisaged that the mower includes means for storing electricity, such as batteries.

The embodiment of the mower according to the invention in at least two or three separate monoblock elements namely, the cutting block, the elongated body and the suction block, the blocks being removably adapted to the elongate body, allows by dismantling the assembly, it is easy to clean each of the constituent elements of the mower, without the elongate body, in particular in its part serving as a reservoir, having recesses in which cut hair or hair is likely to to become encrusted or blocked. In addition, since the body is a simple tube, it can be easily cleaned with water without the risk of damaging other components of the mower that have been detached.

It is possible to make the cutting and / or suction blocks each in the form of a one-piece assembly which can also be passed through the water without risk of damaging the constituents. Within the meaning of the invention, the one-piece character of the cutting and suction blocks does not exclude that they are constituted by an assembly, of different components, removable with suitable tools but in normal condition of use their monobloc character 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 respect, the one-piece nature of the cutting block does not exclude that the cutting head can form an easily separable subassembly, without tools, of the rest of the cutting block in order, in particular, to facilitate maintenance or change.

The cutting block may, for example, include 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.

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 cutting block and, secondly, a second pair of rear connectors, integral with the elongate body, for connection to two complementary connectors of the suction unit.

Advantageously, the connectors of the cutting block are arranged to receive the general power cord of the mower.

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.

The conductors integrated in the elongate body and the associated connectors make it possible to establish an electrical connection between the suction block and the cutting block in order to supply and / or control the cutting motor. It should be noted that such electrical conductors can also be implemented when the power of the cutting and suction motors is ensured 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 block and the suction unit according to the position of the batteries. The conductors may also allow control of the cutting motor and / or the suction motor from a controller located on the other block. Electrical conductors can also provide energy transfer as part of battery charging. Of course, the elongated body could comprise more than two electrical conductors and their connectors, front and rear, associated to achieve as many electrical connections as necessary between the cutting block and the suction block.

According to an alternative embodiment of the invention, the electrical conductors may be located inside and on both sides of the elongated body.

According to one characteristic of the invention, the suction unit may comprise means for controlling the operation of the cutting and suction motors.

To prevent fouling of the turbine, the suction unit may also include, at a suction opening facing the reservoir zone, a filter for stopping the hairs and / or hair sucked.

In order to allow a user of the mower to control the filling level of the reservoir zone, the elongated body may comprise at least one viewing window of the contents of the reservoir zone.

According to the invention, the cutting head is made in any appropriate manner such as for example in the form of a head adapted to ensure a shave of the beard.

According to another possible embodiment of the invention, the cutting head is designed for mowing hair or bristles 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 located above the oscillating toothed blade. Other features and advantages of the present invention will appear 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: - Figure 1 shows a perspective view of a body mower according to the present invention, comprising a body, a cutting block at the front, and a suction block at the rear; - Figure 2 shows a side view of the mower of Figure 1; - Figure 3 shows the mower of Figure 1 or 2 with the detached cutting block, the suction block remained coupled to the body; - Figure 4 shows the hand of a user detaching the suction unit of the body of the mower of Figure 1; - Figure 5 shows the mower of Figure 1 with the cutting block and the suction unit detached from the body; - Figure 6 shows the autonomous use of the cutting unit of the mower of Figure 1, as a precision cutting head; - Figure 7 shows the use of the suction unit remained coupled to the body, as a suction unit.

Figure 1 is a perspective view of a body mower with an elongated body to which is coupled a cutter block 20 at the front and a suction block 30 at the rear. The body mower can cut hairs or hair and suck them simultaneously. In order to store the aspired waste, the body 10 forms a tube which is a reservoir in which this waste is stored.

As seen in Figures 2 and 3, the cutting block 20 is removable, and the body 10 has a narrowed section at the area where the cutting block 20 is fixed, so as to marry the latter as on the Figure 2, where we see that the section of the mower is substantially constant over its entire length, to provide easy grip without significant variation in section or shape.

Thus, in FIG. 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 block 20 or the body 10.

In addition, clearly visible in Figure 3, the body 10 has a counter form to accommodate the cutting block 20, and this allows to form a suction nozzle 12 which, by its narrowed section, causes a speed high suction air flow, and thus efficient suction of waste. The counter form of the body 10 thus accommodates 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 tabs and a return spring. Such a mechanism can therefore be sensitive to impurities, and docking the cutting block 20 on an outer surface of the body 10 limits the exposure of this mechanism to waste that could block it (because these waste is sucked directly inside of the body 10).

In addition, as seen in FIG. 2, the suction nozzle 12 is arranged facing the cutting blade of the cutting block 20, at a predetermined distance d, just behind a comb 21 which is movable relative to to the cutting block 20, to adjust a cutting height.

A power cord 40 is connected to the body mower at the rear area, on the suction unit 30, by a removable plug or socket. It is also possible to connect the power cord 40 to the cutting block 20, at a zone 22 visible in FIG. 3, to use the cutting block 20 autonomously, as in FIG. Precision cutting head for example. It should be noted that the zone 22 for connecting the cutting block 20 is concealed by the body 10 when the cutting block 20 is coupled thereto, leaving only the main connection area behind visible to the user, and avoids all confusion.

FIGS. 4 and 5 show the hand of a user uncoupling the components of the mower of FIG. 1. Indeed, the cutting block 20 and the suction block 30 are removably coupled to the body 10. We can consider any type of coupling, clipping, locking, with movable legs that enter the docking holes ...

To empty the waste that has been sucked by the mower during its use, the user can first uncouple the suction unit 30 of the body 10, as in Figure 4, and then remove a conical filter 11, located in the body 10, between the suction unit 30 and the reservoir zone 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, since the body 10 is a penetrating tube, without corners. It is also possible to wash the body 10. For convenience, the body 10, which forms a reservoir, can be made of transparent material, such as polycarbonate for example.

FIG. 6 thus shows the autonomous use of the cutting block 20 by a user, and then FIG. 7 the use of the suction module formed by the body 10 coupled only to the suction block 30. 7 a connector 31 which is intended to electrically connect the electric circuit of the mower to the cutting block 20 when coupled to the body 10.

It will be understood that various modifications and / or improvements obvious to those skilled in the art can be made to the various embodiments of the invention described in the present description without departing from the scope of the invention defined by the appended claims.

Claims (10)

Hand-held body mower comprising an elongate body (10) equipped at the front with a cutting block (20) and, at the rear, a suction unit (30) characterized in that: the elongate body (10) is in the form of an elongated tube comprising, close to its front end, a suction mouth arranged facing a cutting blade of the cutting block (20), suction block (30) 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 on the suction mouth, - the elongate body (10) has at the front at least one narrowed section, - the cutting block (20) conforms to an external surface of the elongated body, at the level of said at least one narrowed section, - the mower further comprises first wired connection means for providing electrical connection with a power cord (40) so as to power the cutting block (20) and the suction block (30), in which the cutting block (20) is removable and comprises second connection means, for direct connection with said power cord (40) when the cutting block (20) is detached from the mower. 2. Body mower according to the preceding claim, wherein said at least one narrowed section forms a recess for accommodating the cutting block (20). 3. Body mower according to one of the preceding claims, wherein said at least one narrowed section forms a counter form to the cutting block (20). 4. Body mower according to one of the preceding claims, wherein the body (10) comprises coupling means arranged outside the elongated tube, for coupling the suction unit (30) with the body (10). · 5. Body mower according to one of the preceding claims, wherein the reservoir zone has: - a first portion arranged opposite the cutting block (20), - a second portion arranged between the cutting block (20) and the block suction device (30), wherein a first cross section of the body mower at the first portion is similar to a second cross section of the body mower at the second portion. 6. Body mower according to the preceding claim, wherein a surface of the first cross section is equal to a surface of the second cross section to ± 20%. 7. Body mower according to one of claims 5 or 6, wherein the first portion forms a suction nozzle (12). 8. A body mower according to one of claims 5 to 7, wherein the first portion has a length similar to a length of the cutting block (20). 9. Body mower 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 mower according to the preceding claim, wherein the comb (21) is movable to allow adjustment of the cutting height.