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
  • B26B19/38—Details of, or accessories for, hair clippers, or dry shavers, e.g. housings, casings, grips, guards
  • B26B19/3846—Blades; Cutters
• • 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
  • B26B19/06—Cutting heads therefor; Cutters therefor; Securing equipment thereof involving co-operating cutting elements both of which have shearing teeth
• • 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
  • B26B19/06—Cutting heads therefor; Cutters therefor; Securing equipment thereof involving co-operating cutting elements both of which have shearing teeth
  • B26B19/063—Movable or adjustable cutting head
• • 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
  • B26B19/20—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers with provision for shearing hair of preselected or variable length
• • 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
  • B26B19/3853—Housing or handle
  • B26B19/3866—Seals or dampers

Definitions

• the present invention relates to a beard trimmer, more commonly referred to by the English term “trimmer”, comprising a mechanism for suspending the cutting unit making it possible to dampen the contact between the trimmer and the skin, in order to to bring a better feeling to the user but also a better cutting result.
• a beard trimmer more commonly referred to by the English term “trimmer”
• tilt a mechanism for suspending the cutting unit making it possible to dampen the contact between the trimmer and the skin, in order to to bring a better feeling to the user but also a better cutting result.
• Beard trimmers comprise a handle as well as a motorized cutting unit.
• the cutting unit includes a fixed blade and a movable blade, and can also be fitted with a comb to adjust the desired cutting length.
• the user encounters many different bends on the face when trimming the beard, especially on the chin area, and the quality of the cut largely depends on the maneuverability of the trimmer.
• Document WO2005122685 discloses a clipper with a cutting head and a comb arranged on a handle so as to be simultaneously movable relative to the handle, while keeping a constant distance between the cutting unit and the comb in order to do not influence the cutting length.
• the cutting unit and the comb recoil and reduce the pressure acting on the skin.
• the motor is also movable and set in motion with the cutting unit and the comb.
• This is located in the handle and is connected to the cutting unit by a "motion converter", allowing the pressure on the cutting unit to be transmitted to the motor, the latter pushing on a spring provided in the handle in order to to cushion movements on the skin.
• This device improves the feeling of cutting and also avoids friction of the skin by too much pressure.
• This device has the disadvantage of comprising a set of moving parts external to the handle, arranged in such a way as to make the mower cumbersome and difficult to handle, especially in tight spaces. In addition, this trimmer is easily clogged and difficult to clean.
• the present invention aims to provide a beard trimmer that does not have the disadvantages of the state of the art, namely the large size, the difficulty of maneuverability and easy clogging. It aims in particular to offer a beard trimmer with improved comfort of use thanks to its ease of handling.
• An object of the invention is to provide a mower with a system for suspending the cutting unit, allowing a better quality cut thanks to the suspension system which corrects the differences in pressure exerted on the skin, which can lead to length differences. Thanks to the almost constant pressure applied to the skin, the cut is improved.
• the suspension system also limits skin friction and unpleasant sensations related to changes in pressure on the skin.
• Another objective is to provide a mower with a simplified arrangement of the various elements of the suspension system compared in particular to the mowers of the state of the art.
• the aim is to have all the moving parts of the suspension system located inside the handle, avoiding clogging and the difficulty of cleaning as well as the complexity of manufacture. In this way, the design of the handle is also simplified and more ergonomic.
• the cutting unit is as compact as possible, to respect the morphological constraints of the face in order to work on the mustache for example and the movements of the cutting head easily follow the curves of the face.
• the present invention discloses a beard trimmer with suspension of the cutting unit comprising:
• a motorized cutting unit comprising a cutting head and a motor; the motorized cutting unit being fixed on a mobile unit of cylindrical shape sliding in a complementary cylindrical shape located inside the handle or forming the handle and in that an elastic means is positioned behind the mobile unit in order to cushion the pressure of the motorized cutting unit on the skin and to create a restoring force allowing the mobile unit to return to its equilibrium position.
• the elastic means is a spring or a piston
• the motorized cutting unit and the elastic means are aligned, the sliding axis of the motorized cutting unit and the axis of displacement of the elastic means being identical and substantially corresponding to the axis of the part of the handle ensuring the dampening effect
• the travel of the elastic means and the displacement distance of the mobile unit is between 10 and 30 mm, preferably between 15 and 25 mm and even more preferably 20 mm
• the mower comprises a means for adjusting the damping force of the elastic means
• the damping force of the elastic means can vary between 120 and 500g.
• the mower comprises at least one stop element allowing said mobile unit to be retained inside the handle when the travel of the elastic means is maximum; the mower includes a mechanism for locking the cutting unit in one or more fixed positions; the mobile unit comprises a compression stopper coming into contact with the handle when the travel of the elastic means is minimal, the compression stopper is a semi-annular surface coinciding with said complementary cylindrical shape located inside the handle or forming the handle. the cutting head is removable to allow cleaning.
• Figure 1 shows an example of a beard trimmer according to the invention in three dimensions and with the cutting unit in the rest position, namely when the stroke of the elastic means is maximum and the mobile unit is in an advanced position (i.e. when it is fully extended from the handle). It is the pressing action of the trimmer on the skin by the user who exerts pressure on the elastic means and pushes the mobile unit with the motor and the cutting unit towards the inside of the handle . Without pressure, the spring always returns the cutting unit to its initial rest position.
• Figure 2 shows a three-dimensional view of the beard trimmer of Figure 1, with part of the handle having been removed in order to illustrate the internal elements of the trimmer.
• Figure 3 shows a 3-dimensional view of the beard trimmer of Figure 1, but this time with a minimum spring travel. The latter is crushed by the mobile unit (as a result of the user pressing the cutting unit against the skin).
• Figure 4 shows a longitudinal sectional view of a beard trimmer according to the invention, the travel of the spring being maximum because the mobile unit is extended as far as possible out of the handle
• Figure 5 shows an enlarged view of the cutting head and the mobile unit of the mower according to the invention.
• Figure 6 shows a three-dimensional view of an example of a beard trimmer according to the invention, the cutting unit being in the rest position, with part of the handle having been removed in order to illustrate the electric power supply cable of the motor, wound inside the spring, as well as the stopper of the mobile unit.
• Figure 7 shows a three-dimensional view of an example of a beard trimmer according to the invention, the cutting unit being in the rest position, with the abutment shown in an apparent manner despite the fact that it is not normally only partially visible.
• the present invention discloses a beard trimmer 1 with a handle 2 and a motorized cutting unit 3.
• the motorized cutting unit as shown in Figure 2, comprises a cutting head 5 as well as a motor 4 (see in Figure 4).
• the cutting unit is fixed on a mobile unit 6 of substantially cylindrical shape, sliding in a complementary substantially cylindrical shape located inside the handle, in this way allowing the movement of the motorized cutting unit.
• the mobile unit constitutes a shell encompassing the motor and part of the cutting unit, the shape of which is complementary to the internal shape of the handle to allow its fitting. Thanks to this mobile unit, sliding within the partially hollow handle is easy, without requiring moving parts external to the handle which could make the mower bulky and easily clogged and thus make cleaning complicated.
• the mower comprises means for suspending the cutting unit.
• an elastic means 8 is positioned in the handle, at the rear of the mobile unit in order to dampen the pressure of the motorized cutting unit on the skin.
• This elastic means is preferably a spring, as shown in the figures, but can also be any other elastic means such as for example a piston.
• the mobile unit will more or less press on the elastic means, performing back and forth movements when trimming the beard thanks to the telescopic fitting of the mobile unit in the handle.
• This elastic means therefore makes it possible to compensate for the movements of the user, which may be too abrupt, jerky or of too high a force.
• the suspension system therefore makes it possible on the one hand to soften the movements of the user in order to make the feeling more pleasant, but also to obtain a more uniform cutting length. Indeed, when the user exerts too much pressure on the skin, the blades of the cutting head are closer to the skin and this results in a shorter cutting length. You should know that a beard trimmer is difficult to handle due to the different angles of the face and that keeping the same pressure throughout the shave is not easy for the user.
• FIG 2 illustrates the mower with the mobile unit in the rest position.
• the spring travel is maximum because the cutting head is not under any pressure.
• the mobile unit is in a forward position (i.e. it is fully extended from the handle).
• the mower comprises at least one stop element 9 to block the mobile unit when the stroke of the elastic means is maximum (see Figure 6).
• this is in the form of a stud provided on the mobile unit and coinciding with a complementary slot provided in the handle. In this way, the mobile unit is blocked by the stud located at the bottom of the slot when the stroke of the spring is maximum, thus preventing the mobile unit from completely coming out of the handle.
• This stop element can be in any other form, as long as it makes it possible to retain the mobile unit inside the handle when the travel of the spring is maximum, (for example in the form of an annular stop or semi- annular).
• Figure 3 illustrates the mower with the spring represented according to a minimum stroke, the latter being crushed by the mobile unit following the pressure exerted on the cutting head.
• Figure 7 shows an example of a compression stop 14 located on the mobile unit, this being shown in a visible manner.
• the compression stop in this case is a semi-annular surface, located around the perimeter of the mobile unit and which is actually only partially visible when the cutting unit is in the rest position.
• This compression stop can be in any other form. It locks the handle by compression, when the spring is compressed by the mobile unit when pressure is exerted on the cutting head. The handle therefore comes into contact with this compression stop, which in the case shown, coincides with the cylindrical shape located inside the handle or forming the handle.
• the travel of the elastic means, and therefore the displacement distance of the mobile unit towards the inside of the handle is preferably between 10 and 30 mm, more preferably between 15 and 25 mm and is even more preferably 20 mm.
• the objective of the beard trimmer according to the invention is also to offer the user a device with a space-saving and light cutting unit which makes it possible to trim the tightest places on the face and which in at the same time great freedom of movement.
• the inventor has considerably simplified the suspension system.
• the motorized cutting unit and the elastic means are aligned, as shown in Figure 4.
• the sliding axis of the mobile unit and the axis of displacement of the elastic means are parallel and preferably even identical (axis 12). This simplification of the means for suspending the cutting head makes it possible to limit the size around the cutting head and to have an ergonomic handle.
• the mower also includes a protective cover 7, to protect the engine block and limit the deposit of hair on the mobile unit and therefore the engine block.
• the mower may also include a means for adjusting the damping force of the elastic means 8 (not shown).
• a means for adjusting the damping force of the elastic means 8 can, for example, be a wheel on the handle of the mower which can be operated by the user in order to modify the stroke of the elastic means to modify the damping force. This allows the user to choose the damping force that best suits the type of beard trimming they practice. Setting a low damping stroke will increase the force needed to dampen skin contact and setting a high damping stroke will make the trimmer much more sensitive to pressure.
• the mower is equipped with a mechanism for locking the cutting unit in at least one fixed position.
• the user can thus block the cutting head at a certain distance from the handle if he wishes to temporarily no longer use the mower's suspension function.
• the mower of the present invention may also comprise a rechargeable battery 10, as illustrated in the figures.
• the trimmer can thus be used cordlessly.
• the mower can also be designed to operate solely on the mains with a power cable, or even be provided with a combination of the two power supply modes (mains or battery).
• the motor is powered via an electric wire 11 connecting it to the electronic system and to the battery 10 of the mower.
• the wire 11 is wound (for example inside the spring 8 as illustrated in Figures 2 and 4), in order to absorb the movements of the mobile unit 6.

Landscapes

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

Applications Claiming Priority (2)

Publications (2)

Family

ID=76584339

Family Applications (2)

Family Applications Before (1)

Country Status (5)

Families Citing this family (2)

Family Cites Families (16)

• 2021
  • 2021-06-22 EP EP21180821.7A patent/EP4108396A1/de not_active Withdrawn
  • 2021-12-14 CN CN202180099685.8A patent/CN117615887A/zh active Pending
  • 2021-12-14 EP EP21823945.7A patent/EP4359178B1/de active Active
  • 2021-12-14 WO PCT/EP2021/085748 patent/WO2022268351A1/fr not_active Ceased
  • 2021-12-14 ES ES21823945T patent/ES3042296T3/es active Active
• 2023
  • 2023-12-12 US US18/537,358 patent/US12090675B2/en active Active

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