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WO2009024893A1 - Dispositif de rasage dans lequel des bords de coupe d'éléments de coupe coopérants s'étendent au même niveau - Google Patents

Dispositif de rasage dans lequel des bords de coupe d'éléments de coupe coopérants s'étendent au même niveau Download PDF

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Publication number
WO2009024893A1
WO2009024893A1 PCT/IB2008/053224 IB2008053224W WO2009024893A1 WO 2009024893 A1 WO2009024893 A1 WO 2009024893A1 IB 2008053224 W IB2008053224 W IB 2008053224W WO 2009024893 A1 WO2009024893 A1 WO 2009024893A1
Authority
WO
WIPO (PCT)
Prior art keywords
cutting
cutting members
shaving
carriers
members
Prior art date
Application number
PCT/IB2008/053224
Other languages
English (en)
Inventor
Pieter J. Bax
Patrick A. M. De Bruycker
Onno Post
Bernardo A. Mulder
Original Assignee
Koninklijke Philips Electronics N.V.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Koninklijke Philips Electronics N.V. filed Critical Koninklijke Philips Electronics N.V.
Publication of WO2009024893A1 publication Critical patent/WO2009024893A1/fr

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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
    • B26B19/26—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers of the type performing different methods of operation simultaneously, e.g. reciprocating and oscillating; of the type having two or more heads of differing mode of operation
    • 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
    • B26B19/042—Long hair cutters or older types comprising a cutting grid
    • 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
    • B26B19/08—Cutting heads therefor; Cutters therefor; Securing equipment thereof involving co-operating cutting elements both of which have shearing teeth of nipper type

Definitions

  • Shaving device in which cutting edges of cooperating cutting members extend at the same level
  • the present invention relates to a shaving device comprising cutting members having cutting edges adapted to cutting through hair when in cooperation with each other; and driving means coupled to at least some of the cutting members, wherein the driving means serve for moving these cutting members.
  • a shaving device as mentioned in the opening paragraph is well-known.
  • a shaving device comprising a rotatably arranged carrier
  • the carrier serves for supporting cutting members which are adapted to cutting through hair
  • the cutting members are arranged right behind a shaving head having openings for letting through hair.
  • a particular disadvantage of the application of the known shaving devices is that hair gets cut off at a position above skin level, due to the fact that hair gets cut off above a stationary element on the basis of an interaction between cutting edges of this element and cutting edges of an element arranged right behind this element. Hence, a small length of the hair stays behind after a shaving action has taken place. Furthermore, it is necessary that cooperating members are pressed together with a high normal force, in order to avoid pulling of the hair. A disadvantageous result of the high pressing force is friction, which leads to loss of energy.
  • a shaving device comprising pairs of cutting members having cutting edges adapted to cutting through hair when in cooperation with each other, wherein the cutting members are movably arranged with respect to each other; and driving means coupled to the cutting members, wherein the driving means serve for making the cutting members of the pairs of cutting members perform a reciprocating movement with respect to each other during operation of the device, during which the cutting edges of the cutting members are continuously moved towards each other and away from each other, so that dimensions of cutting openings between the cutting edges of the cutting members are continuously increased and decreased; wherein the cutting edges of the cutting members of each pair of cutting members extend at substantially the same level, as seen in a direction in which the cutting members are movable.
  • the cutting edges of the cutting members of each pair of cutting members extend at substantially the same level, as seen in a direction in which the cutting members are movable.
  • hair may be directly cut off at skin level, in other words, interaction between cutting edges of cutting members of a pair of cutting members may take place directly at skin level.
  • the driving means of the shaving device are adapted to making the cutting members of the pairs of cutting members perform an additional reciprocating movement with respect to each other, in another direction than the reciprocating movement during which the cutting edges of the cutting members are continuously moved towards each other and away from each other.
  • the cutting members perform two reciprocating movements with respect to each other, wherein one movement may be a lateral movement with respect to another movement, it is achieved that a force which is needed for cutting off hair is decreased.
  • the shaving device further comprises stops for defining an end of a stroke of the reciprocating movement of the cutting members.
  • stops By means of the application of stops, it is possible to let the cutting edges of the cutting members only lightly touch each other, while a force acting between the cutting members is absorbed by the stops.
  • An important advantage of avoiding collision between cutting edges is that damage to or bluntness of these cutting edges is far less likely to occur.
  • the stops comprise a portion of edges of the cutting members which is located outside the area of the cutting edges.
  • the cutting members are part of a shaving element which is integrally made from a single sheet of material, so that a process of manufacturing the cutting members hardly needs to comprise any more steps than providing a sheet of material and punching this sheet at predetermined places in order to form the cutting members, as desired.
  • a suitable material is metal, for example.
  • the shaving element comprises two elongated carriers extending at a distance from each other, wherein each cutting member is connected to both carriers by means of resilient connection members.
  • movement of the cutting members with respect to each other can be easily realized, namely by moving the carriers in a longitudinal direction with respect to each other, in opposite directions.
  • Cutting edges of the cutting members may be convexly shaped, so that there is enough space between the cutting members to allow for movement, wherein a cutting opening for catching hair is present at the location of central areas of the convex cutting edges.
  • the elongated carriers may extend substantially parallel to each other, and in that case, it may be advantageous when the cutting members have a rotated rest position with respect to the carriers, i.e. when an imaginary line intersecting two areas where the cutting member is connected to the carriers extends in another direction than an imaginary line which is perpendicular to the carriers. In such an embodiment, it is easier to have small openings between the cutting members than in an embodiment in which the cutting members extend perpendicularly to the carriers, and it requires a smaller displacement of the carriers to vary the size of the openings.
  • the shaving element is ring-shaped, in which case the elongated carriers are bent in a circular shape, and are concentrically arranged.
  • the shaving element comprising the cutting members and elongated carriers as described in the foregoing
  • two rows of cutting members are arranged between the carriers, wherein each cutting member is connected to another cutting member at one side and to one of the carriers at another side, and wherein an imaginary line intersecting an area where the cutting member is connected to the other cutting member and an area where the cutting member is connected to the carriers extends in another direction than an imaginary line which is perpendicular to the carriers.
  • a kind of V-shaped configuration of the cutting members may be obtained, wherein forces acting on the carriers may be kept lower than in a design in which the cutting members extend in a straight line and perpendicularly to the carriers.
  • the shaving element comprising the cutting members and elongated carriers as described in the foregoing may be driven by a variety of driving means.
  • a relatively simple option is to have a linear drive that is energized by a rotating motor having an eccentric element. However, it is more likely that a linear resonant drive is applied.
  • a mass-spring system is realized, which can be energized by a linear actuator.
  • a driving frequency is set to be at the resonance frequency, or to be at least close to this frequency.
  • the operation frequency is so high that it is not possible for skin to come between the cutting members.
  • such an actuator can be provided with a sensing coil, which is one of a set of electric coils. From the induced voltage of the sensing coil, and the current through the other coil, which acts as an energizing coil, the actual mechanical stroke of the elongated carriers can be derived. This information can be used for regulating the stroke to a desired set point, so that an accurately controlled movement of the cutting members can be obtained. It is noted that the sensing coil may also be used for the purpose of searching for the resonance frequency.
  • the present invention further provides a shaving device comprising pairs of cutting members having cutting edges adapted to cutting through hair when acting in cooperation with each other, wherein the cutting members are movably arranged with respect to each other; and driving means coupled to the cutting members, wherein the driving means serve to make the cutting members of the pairs of cutting members perform a reciprocating movement with respect to each other during operation of the device, during which the cutting edges of the cutting members are continuously moved towards each other and away from each other, so that dimensions of cutting openings between the cutting edges of the cutting members are continuously increased and decreased; wherein the cutting members are part of a shaving element which is integrally made from a single sheet of material.
  • the present invention provides a shaving element which is intended for use in a shaving device, and which comprises a number of pairs of cutting members having cutting edges adapted to cutting through hair when acting in cooperation with each other, wherein the cutting members are movably arranged with respect to each other, and wherein the cutting members are part of a single sheet of material.
  • An important advantage of the shaving device and the shaving element according to the present invention is that it is very easy to manufacture the shaving element. In particular, this may simply be done by providing a sheet of material, subjecting this sheet to a punching process, wherein portions of the material are removed at predetermined locations, and, if necessary, bending the sheet of material.
  • the shaving element may have any suitable design.
  • the shaving element may comprise two elongated carriers, as described in the foregoing, and one or more rows of cutting members arranged between the carriers, wherein the cutting members may have any suitable orientation with respect to the carriers.
  • the present invention provides a shaving head for use in a shaving device.
  • a shaving head of a shaving device is an assembly that is intended to be placed against the skin of a user during application of the shaving device, and that is adapted to actually perform a shaving action.
  • the shaving head comprises the movably arranged cutting members.
  • cutting edges of cutting members of pairs of cutting members extend at substantially the same level, as seen in a direction in which the cutting members are movable. Furthermore, the shaving head according to the present invention comprises means which are adapted to support the shaving head by contacting the skin when the shaving head is placed against a portion of skin.
  • the support means of the shaving head are movably arranged with respect to the pairs of cutting members, wherein a direction of movement may be perpendicular to an imaginary plane in which the cutting members are movable, so that it is possible that when the shaving head is placed against a portion of skin, the skin is contacted by the support means first, after which the support means are retracted with respect to the pairs of cutting members when a user exerts a light pressure in a direction towards the skin, so that a situation in which both the support means and the pairs of cutting members contact the skin is obtained.
  • Contact forces acting on the pairs of cutting members as a result of contact to the skin are limited due to the application of the support means.
  • the support means are resiliently arranged in the shaving head.
  • the support means may comprise at least one bar that is arranged at a side of the shaving head where the pairs of cutting members are located.
  • the support means may be a bar that is shaped like a closed loop for surrounding an area where the pairs of cutting elements are located, as seen in a direction perpendicular to the imaginary plane in which the cutting members are movable.
  • Figure 1 illustrates a shaving principle of the shaving device according to the present invention
  • Figure 2 diagrammatically shows a side view of cutting members of the shaving device according to the present invention, in a position in which a cutting opening between the cutting members is open, and in a position in which the cutting opening is closed;
  • Figures 3 and 4 diagrammatically show top views of cutting members of the shaving device according to the present invention, in a position in which a cutting opening between the cutting members is open, and in a position in which the cutting opening is closed;
  • Figure 5 diagrammatically shows a top view of cutting members having stop edges, in a position in which a cutting opening between the cutting members is open, and in a position in which the cutting opening is closed;
  • Figure 6 diagrammatically shows side views of two cross-sections of the cutting members having the stop edges
  • Figure 7 diagrammatically shows a perspective view of a shaving element comprising a plurality of cutting members and two elongated carriers, according to a first preferred embodiment
  • Figure 8 diagrammatically shows a top view of a portion of the shaving element according to the first preferred embodiment, in two different positions;
  • Figure 9 diagrammatically shows a top view of a portion of a shaving element according to a second preferred embodiment, in two different positions;
  • Figure 10 shows a top view of a portion of a shaving element according to a third preferred embodiment
  • Figure 11 diagrammatically shows a top view of a cutting member and supporting springs connected thereto;
  • Figure 12 diagrammatically shows a top view of a shaving element according to a fourth preferred embodiment, in a flat condition and in a bent condition;
  • Figure 13 diagrammatically shows a top view of the shaving element according to the fourth preferred embodiment, in three different positions;
  • Figure 14 diagrammatically shows a top view of a shaving element according to a fifth preferred embodiment
  • Figure 15 diagrammatically shows a side view of a cross-section through the shaving element according to the fifth preferred embodiment
  • Figure 16 diagrammatically shows a perspective view of a shaving element and a support member of a shaving head according to a preferred embodiment of the present invention
  • Figures 17 and 18 diagrammatically show a side view of a cross-section of the components of the shaving head shown in Figure 16, in different mutual positions.
  • FIG. 1 diagrammatically shows cutting members 10 of the shaving device according to the present invention. It is noted that the shaving device is not shown as a whole in the Figures.
  • the cutting members 10 are part of a shaving element 11 in which the cutting members 10 are arranged in pairs 12, wherein cutting members 10 of each pair 12 are designed to cooperate with each other for the purpose of cutting off hair 13.
  • each cutting member 10 comprises a relatively sharp cutting edge 14 which is adapted to cutting through hair 13.
  • Such a cutting edge 14 may comprise a beveled edge portion of the cutting member 10.
  • the shaving element 11 is positioned close to a portion of skin 16, as diagrammatically shown in Figure 1, wherein the cutting edges 14 of the cutting members 10 are at the same level as seen in the direction of movement of the cutting members 10.
  • the cutting edges 14 of these cutting members 10 will penetrate the hair 13, so that the hair 13 is cut off.
  • An important advantage of cutting off hair 13 by applying two cutting edges 14 at an equal level is that the hair 13 may be cut off very close to the skin 16, so that extremely good shaving results are obtained.
  • the shaving device may comprise any suitable means for driving at least a number of the cutting members 10.
  • Figures 2 and 3 serve to illustrate a first possible relative movement of the cutting members 10, and to illustrate how the cutting edges 14 of the cutting members 10 of a pair 12 of cutting members 10 abut against each other.
  • Figure 4 serves to illustrate a second possible relative movement of the cutting members 10. Besides a reciprocating movement in a direction perpendicular to the cutting edges 14, the cutting members 10 may additionally be given a lateral movement. Due to this, cutting through a hair 13 requires less force.
  • the cutting members 10 may be provided with one or more stops 17. This option is illustrated by Figure 5.
  • the cutting members 10 comprise stop edges 17.
  • Figure 6 shows a side view of cross-sections taken at two different positions of a cutting member 10, wherein one cross-section is taken at the position of the stop edge 17, and another cross-section is taken at the position of the cutting edge 14, so that it may be seen that only the cutting edge 14 is a beveled edge portion of the cutting member 10.
  • a shaving element 11 which is integrally made from a single sheet 18 of material, such as metal, is provided, as shown in Figures 7-14.
  • the shaving element 11 may comprise at least one row of cutting members 10, wherein cutting edges 14 of the cutting members 10 are located in one and the same imaginary plane, and wherein it is possible to drive the cutting members 10 in such a manner that the size of cutting openings 15 between successive cutting members 10 is continuously varied.
  • a lateral movement as described in the foregoing may also be carried out, as will now be explained with reference to Figures 7 and 8.
  • first preferred embodiment of the shaving element 11 is shown, whereas Figure 8 shows a number of cutting members 10 of the shaving element 11, in two different mutual positions.
  • first preferred embodiment of the shaving element 11 will hereinafter also be referred to as first shaving element 11.
  • the first shaving element 11 comprises one row of cutting members 10, wherein each cutting member 10 has a convexly shaped cutting edge 14.
  • the cutting members 10 are more or less shaped like an ellipse, wherein cutting edges 14 are present at the two elongated sides of the ellipse.
  • cutting edges 14 of successive cutting members 10 are directed towards each other, so that small cutting openings 15 are present between these cutting members 10.
  • the first shaving element 11 further comprises two elongated carriers 19 which extend at opposite sides of the sheet 18, and which are substantially parallel to each other, while the cutting members 10 are arranged between the carriers 19.
  • Each cutting member 10 is connected to both carriers 19 by means of connecting springs 20.
  • the carriers 19 are provided in the form of strips, as shown in Figure 7. In view of this, in the following, the elongated carriers 19 will be referred to as rails 19.
  • the first shaving element 11 As shown in figure 7.
  • a sheet 18 of material is provided and subjected to a punching process, during which the cutting members 10, the rails 19 and the connecting springs 20 are formed by removing surrounding portions of material. Subsequently, the sheet 18 is folded along two folding lines at the location of the connection between the cutting members 10 and the connecting springs 20.
  • FIG 8 two positions of the cutting members 10 are shown.
  • the cutting members 10 are in a rest position with respect to the rails 19.
  • a longitudinal axis 21 of the cutting members 10 extends perpendicularly to a longitudinal axis 22 of the rails 19.
  • the size of the cutting openings 15 between successive cutting members 10 is reduced by moving the rails 19 longitudinally in opposite directions with respect to each other. By doing so, a rotation of the cutting members 10 is obtained, so that it is guaranteed that the cutting members 10 perform both a main movement in a direction in which the size of the cutting openings 15 is varied and an additional, lateral movement. It has already been explained that the additional movement facilitates the process of cutting through hair 13.
  • FIG. 9 shows a number of cutting members 10 of a shaving element 11 according to a second preferred embodiment.
  • this shaving element 11 will hereinafter also be referred to as second shaving element 11.
  • the longitudinal axis 21 of the cutting members 10 extends at an angle with respect to the longitudinal axis 22 of the rails 19.
  • the maximum size of the cutting openings 15 is smaller than the minimum size of the cutting openings 15 in the first shaving element 11.
  • a stroke of the relative movement of the rails 19 may be smaller, whereby stresses in the connecting springs 20 are reduced.
  • a closed condition of the cutting openings 15 of the second shaving element 11 is also shown in Figure 9. It is noted that in this shaving element 11, the cutting openings 15 are closed only one time per period of the relative movement of the rails 19, wherein the size of the cutting openings 15 increases during one half of the period, and the size of the cutting openings 15 decreases during another half of the period.
  • the rails 19 may be given a corrugated shape, whereby the length of the rails 19 decreases, and also the distances between the cutting members 10 decrease.
  • FIG 10 shows a portion of a shaving element 11 according to a third preferred embodiment, which will hereinafter be referred to as third shaving element 11.
  • this shaving element 11 which is also integrally made from a single sheet 18, the cutting members 10 are provided with both cutting edges 14 and stop edges 17, as has already been described with reference to Figures 5 and 6.
  • the cutting members 10 comprise straight cutting edges 14.
  • Figure 10 clearly shows that the supporting springs 20 connected to each cutting member 10 have an offset configuration, i.e. do not extend in line with each other. It is advantageous to have another configuration of the cutting member 10 and the supporting springs 20 connected thereto, for example a configuration as shown in Figure 11, in which the supporting springs 20 are in line. As a result of this alternative configuration, side forces in the rails 19 are reduced.
  • FIG. 11 Another alternative is the shaving element 11 according to a fourth preferred embodiment, as shown in Figures 12 and 13, which will hereinafter be referred to as fourth shaving element 11.
  • This shaving element 11 comprises two rows of cutting members 10 which extend between the rails 19.
  • the cutting members 10 of the two rows are connected to each other, so that one side of each cutting member 10 is connected to a cutting member 10 of another row, and another side of each cutting member 10 is connected to a rail 19 by means of a connecting spring 20.
  • the longitudinal axes 21 of the cutting members 10 of the two rows do not extend in line with each other. Instead, the longitudinal axis 21 of each cutting member 10 extends at an angle with respect to the longitudinal axis 22 of the rail 19 to which it is connected, so that a V-shaped configuration of the cutting members 10 is obtained.
  • the size of cutting openings 15 between cutting members 10 of one row is increased, while the size of cutting openings 15 between cutting members 10 of another row is decreased, and during another half of the period of the relative movement of the rails 19, the size of the cutting members 10 of the first-mentioned row is decreased, while the size of the cutting members 10 of the latter row is increased.
  • Figure 13 shows the fourth shaving element 11 in, successively, a rest position, in a position in which the cutting openings 15 of the row of cutting members 10 shown such as to be at the right-hand side of the shaving element 11 are closed, and in a position in which the cutting openings 15 of the row of cutting members 10 shown such as to be at the left-hand side of the shaving element 11 are closed.
  • FIGS 14 and 15 show a shaving element 11 according to a fifth preferred embodiment, which will hereinafter be referred to as fifth shaving element 11.
  • This shaving element 11 is shaped like a ring, wherein one rail 19 is located at an inner circumference of the ring, and another rail 19 is located at an outer circumference of the ring.
  • the rails 19 are located according to a concentric arrangement, wherein the rails 19 are interconnected by combinations of a cutting member 10 and two connecting springs 20.
  • a desired mutual movement of the cutting members 10 is obtained by rotating the rails 19 with respect to each other.
  • both rails 19 are rotated in the process, and the rotation of the rails 19 takes place in opposite directions of rotation.
  • Means for driving the rails 19 may comprise a rotating vibrating actuator.
  • FIGS 16-18 show components of a shaving head 30, wherein Figures 17 and 18 are cross-sectional drawings.
  • the shaving head 30 is an assembly that is intended for use in a shaving device according to the present invention, and that comprises the cutting members 10.
  • correct operation of a shaving device having the shaving head 30 involves placing the shaving head 30 against skin 16 for the purpose of cutting off hair 13 (not shown in Figures 16-18).
  • the shaving head 30 comprises a shaving element 11 that resembles the first shaving element 11 as shown in Figure 7, but that does not alter the fact that the shaving head 30 may comprise another embodiment of the shaving element 11, or even another arrangement of the pairs 12 of cutting members 10, as long as cutting edges 14 of the cutting members 10 of each pair 12 are located in one and the same imaginary plane.
  • the shaving head 30 comprises a skin support member 31, which is mo vably arranged with respect to the shaving element 11 , in a direction perpendicular to the imaginary plane.
  • the skin support member 31 may be connected to one or more other components of the shaving head 30, for example, a housing (not shown) of the shaving head 30, in any suitable manner.
  • An important function of the support member 31 is contacting skin 16 during a shaving action, whereby it is achieved that contact forces acting on the cutting members 10 when the shaving head 30 is applied in a shaving device and the cutting members 10 contact the skin 16 as well are kept limited.
  • the support member 31 is resiliently arranged in the shaving head 30.
  • the support member 31 is shown in an initial, unloaded position, in which the support member 31 , or at least a skin contacting portion 32 of the support member 31, projects further from the shaving head 30 than the cutting members 10.
  • the support member 31 is retracted with respect to the cutting members 10, until the cutting members 10 contact the skin 16 as well.
  • the cutting members 10 are capable of cutting through hair 13 at skin level, and the support member 31 has the function of taking up most of the contact forces.
  • Figure 18 illustrates the situation in which the skin 16 is contacted by both the support member 31 and the cutting members 10.
  • the support member 31 may have any suitable shape for contacting the skin 16.
  • the support member 31 may comprise a bar that is shaped like a closed loop, wherein the support member 31 is arranged such as to surround an area where the cutting members 10 are located, as seen in a direction in which the support member 31 is movable.
  • the support member 31 comprises two separate bars, for example.
  • shaving device as used in this text should be understood such as to cover various types of appliances for shaving portions of skin by cutting off hair close to the skin, including shavers, trimmers, grooming appliances and female depilation appliances.
  • a shaving element 11 which is intended for use in a shaving device has been disclosed.
  • the shaving element 11 comprises cutting members 10, wherein it is possible to drive the cutting members 10 in such a manner that a size of cutting openings 15 between cooperating cutting members 10 is continuously varied.
  • the cutting members 10 are provided with relatively sharp cutting edges 14, so that a hair 13 which is caught in a cutting opening 15 is cut off when the cutting members 10 delimiting the cutting opening 15 are moved towards each other and the cutting opening 15 is closed.
  • the cutting edges 14 are located at the same level, so that it is achieved that cutting off hair takes place at skin level, as a result of which excellent shaving results are obtained.
  • the shaving element 11 is manufactured on the basis of a single sheet 18 of material, wherein portions of the sheet 18 have been removed in order to obtain a desired configuration of components of the shaving element 11, for example two rails 19 extending at opposite sides of the sheet 18, at least one row of cutting members 10 extending between the rails 19, and connecting members such as connecting springs 20 for connecting each cutting member 10 to the rails 19.

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

Abstract

L'invention porte sur un élément de rasage (11) qui est conçu pour une utilisation dans un dispositif de rasage qui comprend des éléments de coupe (10), les éléments de coupe pouvant être entraînés (10) de sorte à faire varier de façon continue la taille des ouvertures de coupe (15) entre des éléments de coupe coopérants (10). Les éléments de coupe (10) sont pourvus de bords de coupe relativement tranchants (14), de telle sorte qu'un poil qui est amené dans une ouverture de coupe (15) est coupé lorsque les éléments de coupe (10) délimitant l'ouverture de coupe (15) sont amenés les uns vers les autres et que l'ouverture de coupe (15) est fermée. Les bords de coupe (14) sont situés au même niveau, de telle sorte que l'on obtient une coupe de poil au niveau de la peau, à la suite de quoi on obtient d'excellents résultats de rasage. Dans divers modes de réalisation, l'élément de rasage (11) est fabriqué sur la base d'une unique feuille (18) de matériau.
PCT/IB2008/053224 2007-08-17 2008-08-12 Dispositif de rasage dans lequel des bords de coupe d'éléments de coupe coopérants s'étendent au même niveau WO2009024893A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP07114488.5 2007-08-17
EP07114488 2007-08-17

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WO2009024893A1 true WO2009024893A1 (fr) 2009-02-26

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PCT/IB2008/053224 WO2009024893A1 (fr) 2007-08-17 2008-08-12 Dispositif de rasage dans lequel des bords de coupe d'éléments de coupe coopérants s'étendent au même niveau

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2103753A (en) * 1936-04-29 1937-12-28 Gillette Safety Razor Co Shaving implement
US2553741A (en) * 1947-08-30 1951-05-22 Elmer J Beyer Nipper type dry shaver
FR1136210A (fr) * 1954-11-27 1957-05-10 Appareil à raser à sec
US2837819A (en) * 1954-11-27 1958-06-10 Bauerle Kurt Dry shaver with reciprocating circular bevelled blades
DE1096248B (de) * 1958-05-23 1960-12-29 Kurt Baeuerle Elektrisches Rasiergeraet
CH405104A (de) * 1963-03-25 1965-12-31 Frey Ariel Haarschneidekopf für elektrische oder mechanische Rasierapparate oder Haarschneidemaschine
US3611567A (en) * 1969-04-14 1971-10-12 Bertram F Crane Centrifugal drive for electric razor

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2103753A (en) * 1936-04-29 1937-12-28 Gillette Safety Razor Co Shaving implement
US2553741A (en) * 1947-08-30 1951-05-22 Elmer J Beyer Nipper type dry shaver
FR1136210A (fr) * 1954-11-27 1957-05-10 Appareil à raser à sec
US2837819A (en) * 1954-11-27 1958-06-10 Bauerle Kurt Dry shaver with reciprocating circular bevelled blades
DE1096248B (de) * 1958-05-23 1960-12-29 Kurt Baeuerle Elektrisches Rasiergeraet
CH405104A (de) * 1963-03-25 1965-12-31 Frey Ariel Haarschneidekopf für elektrische oder mechanische Rasierapparate oder Haarschneidemaschine
US3611567A (en) * 1969-04-14 1971-10-12 Bertram F Crane Centrifugal drive for electric razor

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