EP0239920B1 - Rasoir électrique à tête de rasage pivotante - Google Patents

Rasoir électrique à tête de rasage pivotante Download PDF

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Publication number
EP0239920B1
EP0239920B1 EP87104364A EP87104364A EP0239920B1 EP 0239920 B1 EP0239920 B1 EP 0239920B1 EP 87104364 A EP87104364 A EP 87104364A EP 87104364 A EP87104364 A EP 87104364A EP 0239920 B1 EP0239920 B1 EP 0239920B1
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EP
European Patent Office
Prior art keywords
shaving
shaving head
tangent
pivot axis
shaving apparatus
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP87104364A
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German (de)
English (en)
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EP0239920A3 (en
EP0239920A2 (fr
Inventor
Klaus Oprach
Lühr Harms
Gebhard Braun
Karl Trölltsch
Werner Messinger
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Braun GmbH
Original Assignee
Braun GmbH
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Publication date
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Application filed by Braun GmbH filed Critical Braun GmbH
Priority to AT87104364T priority Critical patent/ATE51562T1/de
Publication of EP0239920A2 publication Critical patent/EP0239920A2/fr
Publication of EP0239920A3 publication Critical patent/EP0239920A3/de
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Publication of EP0239920B1 publication Critical patent/EP0239920B1/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
    • B26B19/02—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers of the reciprocating-cutter type
    • 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
    • B26B19/048—Complete cutting head being movable

Definitions

  • the invention relates to an electric shaver having a housing and a shaving head system which can be pivoted about a pivot axis relative to the housing and which consists of a shaving head frame, a shaving plane formed by at least one upper knife with arcuate transitions to the longitudinal sides of the shaving head frame and at least one driven by a motor
  • Upper knife assigned lower knife exists, according to the features contained in the preamble of claims 1 and 2, respectively.
  • a shaving head is pivotally mounted on the handle of a shaving apparatus with both one and two parallel flat shaving surfaces.
  • the width of the shear plane exposed to the contact pressure in the shaving head according to US Pat. No. 2,099,537 extends beyond the shear area formed by the upper knife and lower knife. It is limited by two roles serving the skin protection, which are assigned to the planar shear area outside it, running parallel to its longitudinal direction. 8 of US-A 2 099 537 the pivot axis of the shear plane lies on the lever line connecting the center axes of the two rollers.
  • the pivot axis of the shear plane is arranged below the lever line connecting the center axes of the two rollers.
  • the tilting effect of a shear plane previously described with reference to FIG. 8 of US Pat. No. 2,099,537 also occurs in the device according to FIG. 3 of US Pat. No. 2,526,153.
  • the shear plane is formed by the tangential plane connecting the circumference of the two circular shaving heads.
  • the shear-active area of the two arched transitions extends from the respective transition points of the shaving head frame to the arched transitions and their tangential points into the shear plane.
  • the pivot axis for the lever arm connecting the two shaving heads lies below the connecting line connecting the transition points of the shear-active regions of the curved shaving head frames.
  • the US design patent 232 494 shows a generic shaver with a pivotable double-headed shaving system, the pivot axis determined by the pivoting radius shown is below the connecting line connecting the transition points of the shear-active regions of the arcuate transitions to the shaving head frame, so that even when the two shaving heads are systematically carried out the skin surface, depending on the respective direction of movement of the shaving heads across the skin surface, only one shaving head remains on the skin surface, while the other tilts away from the skin surface.
  • a shaver with at least two adjacent, flat shaving surfaces having shaving heads is known, which are movably mounted in a shaving head frame immovably placed on a handle, at least one of the shaving heads being movably supported relative to the other in such a way that Depending on the pressure exerted on the skin, the shaving heads automatically assume positions in which their shaving surface is either in the same plane or at a more or less large angle to one another.
  • This control of the shaving head position which is dependent on pressing forces, assumes that the handle with the shaving heads is pressed onto the skin surface almost at right angles and, in order to ensure that all of the shaving heads rest against the skin, only a small swiveling range of the handle.
  • contact of the shear surface with the skin surface is excluded in this known device.
  • the invention has for its object to arrange the shaving head of a razor such that the entire shear surface that can be used for shaving comes into contact with the skin surface at normal angles of incidence of its housing to the skin surface and that the shifting directions of the shaving head on the skin surface cause the tilting away Shear surface or part of the usable shear surface is prevented by the skin surface.
  • the entire usable shear surface should follow the contour of the skin surface regardless of the respective pressure forces acting on it.
  • the storage of a shaving head system or shaving head according to the invention ensures that, within the normal angle of attack of the shaving head of a razor to the skin surface, the optimal shaving surface that is usable for the respective shaving head system in the form of a shaving plane is automatically moved to the skin surface and there remains, irrespective of the pressure forces acting on it and the shifting directions of the shaving head across the skin surface.
  • a particular advantage of this balanced shaving head system storage is that the respective over the handle of the shaver The pressure applied after the shear plane has been applied to the skin surface is evenly distributed over the effective shear surface.
  • the pivot axis of the shaving head system is provided up to half the distance between the tangent and the connecting line in the region of the straight line, below the tangent on the straight line.
  • the pivot axis of the shaving head system is provided at a distance up to ten times the distance between the tangent and the connecting line in the region of the straight line, above the tangent on the straight line.
  • the pivot axis of the movable shaving head system can be provided at a distance from the straight line.
  • Such a displacement of the swivel axis leads to an unbalanced shaving head system bearing with an uneven distribution of the pressure force exerted in each case on the shear surface or shear plane divided by the swivel axis. Tilting away of the shear surface or the shear plane from the skin surface is excluded within a certain distance of the pivot axis from the straight line. The permissible distance cannot be calculated mathematically in all embodiments according to the invention and can therefore be determined by practical tests.
  • the shaving head system is acted upon by at least one spring acting on the shaving head system.
  • a shaving head system that is closed on all sides is arranged to be movable about the pivot axis between two support arms provided on the handle.
  • the shaving head system which is closed on all sides, consists of the shaving head frame, at least one upper knife covering the cutting head frame on the cutting side and a bottom part covering the drive side, and at least one lower knife moving linearly back and forth between the upper knife and the bottom part.
  • the interior of the shaving head system which is closed on all sides, advantageously serves as a collecting container for the hair dust accumulating in one or more shaves, which can be easily removed from the shaving head frame by separating the bottom part.
  • two stops and a locking pin which projects from the drive side of the handle and can be actuated by a switch are provided on the base part.
  • a drive plate is slidably attached to the bottom part and is provided with a drive groove for the drive pin.
  • the shaving head system is preferably rotatably attached to the support arms by means of two bearing bolts or two fastening screws.
  • the shaving head system is slidably guided in the grooves provided in the support arms by means of two guide elements.
  • Fig. 1 shows a schematic representation of an upper knife 4 with arcuate transitions B i and B 2 to the long sides 5 and 6 of a shaving head frame 3.
  • the arcuate transitions B 1 and B 2 each represent parts of a circular arc with a matching radius size in this embodiment the tangent plane connecting the arcuate transitions B 1 and B 2 is an imaginary plane, which is referred to below as the shear plane SE.
  • the common tangent T s at the arc shapes of the arcuate transitions Bi and B 2 is determined with the tangential points TP 1 and TP 2, on the one hand, the transition from the shear plane SE into the arched transitions B i and B 2 and, on the other hand, through the distance A that the tangential points TP 1 and TP 2 have to one another, the broad side of the shear plane SE.
  • the extent of the shear plane SE in the longitudinal direction parallel to the long sides 5 and 6 of the shaving head frame 3 is dependent on its intended length.
  • the shear-active area of the arcuate transitions B 1 and B 2 is to be understood as the area in which the lower knife and upper knife have a shear-active effect or can have a shear-active effect due to a cutting contact between the lower knife and the upper knife.
  • the end points Pi and P 2 of the shear-active area of the arcuate transitions B 1 and B 2 facing away from the tangential points TP 1 and TP 2 are defined, for example, by the transition of the upper knife 4 into the longitudinal sides 5 and 6 of the
  • the connecting line connecting the end points P 1 and P 2 is designated V and the straight line intersecting both the connecting line V and the tangent T 3 is designated by G.
  • the straight line G intersects the tangent Ts at right angles, namely in the middle of the distance A that the tangential points TP 1 and TP 2 have from one another.
  • the intersection point SP resulting from this intersection serves as a preferred axis center point for the pivot axis Z and also as a reference point for the surrounding area within which the pivot axis Z can also be provided.
  • the pivot axis Z runs, as shown, through the intersection SP and in the shear plane SE and in the longitudinal direction of the shear plane SE parallel to the long sides 5 and 6 of the shaving head frame 3.
  • FIG. 2 shows a schematic representation of a shaving head system with asymmetrically designed arched transitions B 1 and B 2 .
  • the arcuate transitions B i and B 2 each form part of a circular arc with a different circle radius.
  • the common tangent T 3 on the arc shapes of the arcuate transitions B 1 and B 2 determines the transition from with the tangential points TP 1 and TP 2 the shear plane SE into the arcuate transitions B 1 and B 2, and also by the distance A, which the tangential points TP 1 and TP 2 have to one another, the broad side of the shear plane SE.
  • FIG. 1 shows a schematic representation of a shaving head system with asymmetrically designed arched transitions B 1 and B 2 .
  • the arcuate transitions B i and B 2 each form part of a circular arc with a different circle radius.
  • the common tangent T 3 on the arc shapes of the arcuate transitions B 1 and B 2 determines the transition from with the
  • the points furthest apart on the arcuate transitions Bi and B 2 were provided as end points P 1 and P 2 .
  • the shear-active area of the arcuate transition B 1 accordingly extends from P 1 via the vertex S 1 of the arc-shaped transition to the tangential point TP 1 of the tangent T 3 with the arc-shaped transition B i , while the shear-active area of the arc-shaped transition B 2 extends from the end point P 2 to the ahead of the apex S 2 tangency point TP 2 of the tangent Ts to the arc-shaped transition B 2 extends.
  • a straight line referred to as connecting line V connects the end points P 1 and P 2 .
  • the broad side of the shear plane SE is determined by the distance A between the tangential points TP 1 and TP 2 on the tangent T 3 .
  • a straight line G bisecting the distance A and intersecting the tangent T 3 at right angles results in the intersection point SP.
  • This intersection point SP represents the center of the axis for the pivot axis Z.
  • Fig. 3 shows a schematic representation of a section through an upper knife 4 and through the lower knives 25 and 26 assigned to the upper knife.
  • the asymmetrical and deviating from a circular arc-shaped transitions Bi and B 2 of the upper knife 4 protrude into the longitudinal sides 5 and 6 of the shaving head frame 3 in and are attached there.
  • the end points P 1 and P 2 of the shear-active area located on the curve shape of the arcuate transitions Bi and B 2 are the lower limit points of the given contact area of the likewise curved lower knives 25 and 26 on the upper knife 4 in the illustrated exemplary embodiment.
  • the arc shape of the lower knives 25 and 26 that can be used for a cutting process ends at the end points Pi and P 2 and then runs away from the upper knife 4 into the interior of the shaving head frame 3.
  • the straight line connecting the end points P 1 and P 2 is referred to as the connecting line V.
  • the common tangent T 3 at the arc shapes of the arcuate transitions B 1 and B 2 determines with the tangential points TP 1 and TP 2 both the transition from the shear plane SE into the arcuate transitions B i and B 2 as well as by the distance A that the Tangential points TP 1 and TP 2 have each other, the broad side of the shear plane SE.
  • the shear-active region of the arcuate transitions B 1 and B 2 extends from the respective tangential points TP 1 and TP 2 to the end points Pi and P 2 lying on the arc shapes of the arcuate transitions Bi and B 2 facing away from them.
  • the straight line G intersects the tangent T 3 at right angles and in the middle of the distance A that the tangential points TP 1 and TP 2 have to one another.
  • the resulting intersection point SP represents the center of the axis for the pivot axis Z of the shear system.
  • the pivot axis Z for the movable shaving head system 2 can ensure that the entire shaving surface that can be used for shaving comes into contact with the skin surface at normal angles of incidence of the shaving apparatus housing to the skin surface and that the shaving surface on the skin surface tilts away when the shaving head is shifted in different directions a part of the usable shear area from the skin area is is to be provided within an area around the intersection SP, which is to be determined as explained with reference to the exemplary embodiments according to FIGS. 1 to 3.
  • a shift of the pivot axis Z on the straight line G intersecting the tangent T 3 at right angles has a balanced shaving head system mounting due to the always equal distances between the axis center of the pivot axis Z and the tantential points TP 1 and TP 2 Consequence, which causes the respective pressing force exerted on the housing of the shaving apparatus after the shear plane has been applied to the skin surface to be distributed evenly over the entire surface of the shear plane.
  • a displacement of the pivot axis Z at a distance from the straight line G both in the direction of the tangential point TP 1 and in the direction of the tangential point TP 2 , specifically in the shear plane or below or above the shear plane, can also be carried out.
  • an unbalanced movement of the shear plane SE or the shaving head frame about this pivot axis Z occurs.
  • the result of this is that after the shear plane SE has been applied to the skin surface, the pressure force of the shaving apparatus is distributed unevenly to the shear plane, as a result of which the shear plane rests on the skin surface with unequal pressure forces.
  • the unbalanced movement of the shear plane SE can be compensated for by at least one spring acting on the shaving head system.
  • the limits of the permissible distance of the pivot axis Z to the straight line G may be due to the numerous influencing factors to be taken into account, such as, for. B. Arc shape of the arcuate transitions, distance B of the intersection points SP and SP 1 of the straight line G with the shear plane and the connecting line V, friction of the upper knife on the skin and area of the pressing forces of the shaver on the skin surface, for the respective embodiment only by practical Experiments are identified.
  • Fig. 4 shows a razor with a housing serving as a handle 1 and a shaving head system 2 movable about a pivot axis Z, consisting of a shaving head frame 3 and a shaving plane formed by a double-curved top knife 4 with arcuate transitions B 1 and B 2 to the Longitudinal sides 5 and 6 of the shaving head frame 3.
  • An electric motor is accommodated in the handle 1, which sets a drive pin 7 protruding from the handle 1 in an oscillating oscillating movement.
  • the drive pin 7 protrudes from the side surface of the handle 1, hereinafter referred to as drive side 8, and can be coupled both indirectly and directly to the lower knife (s) (not shown in FIG. 4).
  • FIGS. 6 to 9 Details of the design options and assignments of the lower knife and upper knife can be found in FIGS. 6 to 9.
  • two protruding support arms 11 and 12 are provided in the extension of the narrow sides 9 and 10 of the handle 1 for the purpose of mounting the pivotable shaving head frame 3.
  • the handle 1 is divided into two housing assemblies 1.1 and 1.2, which are held releasably together by a locking mechanism to be operated by a locking button 13.
  • a switch 14 provided on the broad side of the handle 1 on the housing assembly 1.2 serves to actuate a locking pin 15.
  • FIG. 5 shows the housing assembly 1.2 of the handle 1 according to FIG. 4 with a shaving head frame 3 which takes up a different pivot position, in such a way that the side of the shaving head frame 3 facing the drive side 8 is visible.
  • the shaving head frame 3 is provided with a base plate 16 which is detachably held between the end cheeks 17 and 18 of the shaving head frame 3, that is to say removably via locking means 19 and 20.
  • two stops 21 and 22 are provided in the base plate 16, against which the locking pin 15, which can be moved via the switch 14, comes to rest in the pushed-out state , while in the withdrawn state of the locking pin 15, the shaving head frame 3 can be pivoted through 360 ° about the pivot axis Z.
  • a drive plate 23 coupled to the lower knife (s) arranged in the shaving head frame 3 is slidably mounted in the base plate 16.
  • the drive plate 23 is provided with a drive groove 44, in which the drive pin 7 engages for the purpose of transmitting motion from the motor to the lower knife (s).
  • the shaving head frame 3 in conjunction with the upper knife 4 forming the shear plane, the base plate 16 and the bottom knife (s) arranged to be oscillatable between the upper knife and the base plate, represents a shaving head system 2 which is closed on all sides and which is located between the support arms 11 and 12 is pivotally mounted about the pivot axis Z, the pivoting movement being limited by means of a locking pin 15 and stops 21 and 22 in such a way that the transmission of movement from the oscillating type drive pin 7 on the or the lower knife is ensured when using the shaver.
  • 6 to 9 show a schematic representation of different design variants and assignments of the upper knife and lower knife in a shaving head frame 3.
  • Fig. 6 shows an upper knife 4 arched over two circularly designed lower knives 25 and 26, which is fastened to the long sides 5 and 6 of the shaving head frame.
  • a guide roller 24 is arranged between the lower knives 25 and 26 in such a way that a U-shaped depression between the two lower knives is achieved by the course of the upper knife 4 around the guide roller 24.
  • the guide roller 24 runs parallel to the longitudinal sides 5 and 6 and is movably arranged in the end cheeks 17 and 18 in an elongated guide device 29, such as a groove, for example, which is oriented at right angles to the non-swung out shear plane SE.
  • a coupling block 27, which transmits the oscillating drive movement to the lower knives 25 and 26, is arranged on the base plate 16 resting on the longitudinal sides 5 and 6.
  • the tangential plane connecting the arcuate transitions B 1 and B 2 delimited by the tangential points TP 1 and TP 2 or their tangential lines running in the longitudinal direction of the shaving head frame 3 and the length of the upper knife 4, is an imaginary plane, which according to the present invention is called the shear plane SE is called.
  • the endpoints Pi and P 2 remote from the tangent points TP 1 and TP 2 of the effective shaving area of the arcuate transitions B 1 and B 2 follow, starting from the clamping of the upper blade in the longitudinal sides 5 and 6 of the shaving head frame 3, with the first contact of the Circumference of the lower knife 26 and 25 with the upper knife.
  • a bore 28 is provided in the end cheek 17 to support the pivot axis Z.
  • the central axis of the bore 28 is also part of the pivot axis Z and is slightly below the shear plane SE in the embodiment of FIG. 6.
  • the shear plane SE shifts when the razor is used, caused by the contact pressure of the razor on the skin surface, with respect to the pivot axis Z, so that at least at times the shear plane SE intersects the swivel axis Z horizontally.
  • the shear system according to FIG. 7 shows two upper knives 4.1 and 4.2 arched over the circular lower knives 25 and 26.
  • the upper knife 4.1 is fastened to the longitudinal side 6 of the shaving head frame and guided around the lower knife 26 until it comes into contact with the guide roller 24 located between the two lower knives 25 and 26.
  • the upper knife 4.2 fastened on the long side 5 is guided around the lower knife 25 until it rests on the guide roller 24.
  • the guide roller 24 and the two upper knives 4.1 and 4.2 are firmly connected, for. B. by means of a welded or riveted connection.
  • the guide roller 24 is slidably guided in the guide device 29 as described in FIG. 6.
  • the shaving head system is provided with an upper knife 4 and a lower knife 30.
  • the lower knife 30 consists of two semicircular knife heads 31 and 32, which are connected via a connecting web 33 to form a one-piece component.
  • the lower knife 30 is coupled to the coupling piece 27 and can be moved on it or with it, as described under FIG. 6, in the vertical direction against a suspension, not shown.
  • the upper knife 4 is stretched around the illustrated contour of the lower knife 30 and fastened in the longitudinal sides 5 and 6 of the shaving head frame 3.
  • the guide roller 24 sliding in a guide device 29, around which the upper knife 4 is guided, ensures the required contact of the upper knife 4 with the lower knife 30 or the spring-mounted lower knife 30 with the upper knife 4.
  • FIG. 9 shows a shaving head system with an upper knife 4 stretched over a lower knife 34.
  • the sides running in the longitudinal direction of the lower knife 34 are curved to the long sides 5 and 6 of the shaving head frame 3 in order to form the arcuate transitions Bi and B 2 for the upper knife located thereover 4 from the shear plane SE.
  • the underside 35 of the lower knife 34 coincides with the connecting line V which passes through the center points Mi and M 2 and connects the arc points P i and P 2 of the arcuate transitions B i and B 2 and M 2 lying tangential points TP 1 and TP 2 connecting shear plane SE leads to adaptation of the lower knife shape to the shear plane SE to form the lower knife, which has two arcuate shear areas and a flat shear area in connection with the upper knife 4 stretched over it.
  • a bore 28 serving to support the pivot axis Z is arranged in the end cheek 17.
  • the center axis of the bore 28, at the same time the pivot axis Z, is arranged in the end cheek 17 at the level of the shear plane SE.
  • the pivot axis Z therefore runs through the shear plane.
  • a displacement of the shear plane SE corresponding to this spring travel into the area below the pivot axis Z takes place in the case of a spring-mounted lower knife 34 or a coupling block 27 resilient in the vertical direction.
  • FIG. 10 and 11 show, for example, two embodiments of the bearing configuration for the pivot axis Z of the shaving head system, specifically on one of the support arms according to FIG. 4.
  • the support arm 11, the front cheek 17, the base plate 16 and the upper knife 4 partially shown in section and a lower knife.
  • the bore 28 is in the manner of a blind hole and in the front cheek 17 one Through hole 36 is provided.
  • a bearing bolt 37 penetrating through bore 36 and firmly connected to it engages in bore 28 and is rotatably supported there.
  • the pivot axis Z runs in the illustrated embodiment through the center axes of the through bore 36 and the bore 28 and lies at the level of the shear plane SE of the upper knife 4.
  • the support arm 12, not shown, of the handle 1 and the end cheek 18 are provided with an analog bearing design.
  • the support arm 11 is arranged slightly offset from the narrow side 9 of the handle 1.
  • the support arm 11 projects into the interior of the shaving head frame 3 and is partially surrounded by the front cheek 17.
  • a through bore 36 is provided in the end cheek 17 and a threaded bore 38 is provided in the support arm 11.
  • a fastening screw 39 which is provided with a rotatable mounting of the front cheek 17 and thus the shaving head system serving paragraph 45 extends through the through hole 36 and is screwed into the threaded bore 38.
  • the support arm 12, not shown, of the handle 1 and the end cheek 18 are provided with an analog bearing design.
  • the pivot axis Z runs through the center axes of the through bores 36 and threaded bores 38 of the support arms 11 and 12.
  • FIG. 12 shows a shaving apparatus with a housing serving as a handle 1 and a shaving head system 2 that can be moved about the pivot axis Z, consisting of a shaving head frame 3 and a shaving plane SE formed by a double-curved upper knife 4 with arcuate transitions Bi and B 2 to the Longitudinal sides 5 and 6 of the shaving head frame 3.
  • a shaving apparatus with a housing serving as a handle 1 and a shaving head system 2 that can be moved about the pivot axis Z, consisting of a shaving head frame 3 and a shaving plane SE formed by a double-curved upper knife 4 with arcuate transitions Bi and B 2 to the Longitudinal sides 5 and 6 of the shaving head frame 3.
  • two projecting support arms 11 and 12 are provided, on which the shaving head frame 3 is movably mounted about the pivot axis Z above the shear plane SE.
  • the pivot axis Z running in the longitudinal direction of the shaving head system 2 intersects the straight line G that intersects both the shear plane SE at the intersection SP and the connecting line V above the shear plane at a distance that lies within the specified surrounding area around the intersection SP. This can be up to ten times the distance B that the intersection points of the straight line G with the shear plane SE lying on the tangent T 3 and the connecting line V have to one another.
  • the shaving head frame 3 is movably supported by means of guide elements 40 and 41 in grooves 42 and 43 provided in the support arms 11 and 12, both the guide elements 40 and 41 and the grooves 42 and 43 having an arc shape corresponding to the radius R starting from the pivot axis Z. .

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dry Shavers And Clippers (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Claims (14)

1. Rasoir électrique comprenant un boîtier (1) et un dispositif de tête de rasage (2), qui est capable de pivoter par rapport au boîtier (1) autour d'un axe de pivotement (Z), et qui est constitué d'un cadre de tête de rasage (3), d'un plan de rasage (SE), qui est formé par au moins un couteau supérieur (4) et qui présente des transitions de forme arquée (B1, B2) vers les côtés longitudinaux (5, 6) du cadre (3) de la tête de rasage, et d'au moins un couteau inférieur (25, 26, 30, 34) entraîné par un moteur et adjoint au couteau supérieur (4), caractérisé en ce que l'axe de pivotement (Z) s'étend à travers le point d'intersection (SP) de deux droites (T3, G), T3 étant la tangente commune aux transitions de forme arquée (B1, B2), G étant une droite qui coupe cette tangente (T3) à angle droit, au milieu de la distance (A), et A étant la distance entre les points de tangence (TPi, TPz) de la tangente (T3) sur les transitions de forme arquée (B1, Bz).
2. Rasoir électrique suivant le préambule de la revendication 1, caractérisé en ce que l'axe de pivotement (Z) s'étend dans la zone environnante du point d'intersection (SP) de deux droites (T3, G) et en ce que la zone environnante est située au-dessus d'une ligne de liaison (V), T3 étant la tangente commune aux transitions de forme arquée (Bi, B2), G étant une droite coupant cette tangente (Ts) à angle droit, au milieu de la distance (A), A étant la distance entre les points de tangence (TPi, TP2) de la tangente (Ts) sur les transitions de forme arquée (Bi, B2), et V étant la ligne de liaison des points d'extrémité (Pi, P2) inférieurs, situés à l'opposé des points de tangence (TPI, TP2), de la zone de rasage effective des transitions de forme arquée (Bi, B2).
3. Rasoir électrique suivant la revendication 2, caractérisé en ce que l'axe de pivotement (Z) est prévu en dessous de la tangente (T3) sur la droite (G), jusqu'à la moitié de la distance (B), que présentent, l'une par rapport à l'autre, la tangente (T3) et la ligne de liaison (V) dans la zone de la droite (G).
4. Rasoir électrique suivant la revendication 2, caractérisé en ce que l'axe de pivotement (Z) est prévu au-dessus de la tangente (Tε) sur la droite (G) à une distance allant jusqu'au décuple de la distance (B), que présentent, l'une par rapport à l'autre, la tangente (Ts) et la ligne de liaison (V), dans la zone de la droite (G).
5. Rasoir électrique suivant la revendication 2, caractérisé en ce que l'axe de pivotement (Z) est prévu à une certaine distance de la droite (G).
6. Rasoir électrique suivant la revendication 5, caractérisé en ce que le dispositif de la tête de rasage (2) est sollicité par au moins un ressort agissant sur le dispositif de tête de rasage (2).
7. Rasoir électrique suivant la revendication 1 ou 2, caractérisé en ce que la cadre (3) de la tête de rasage est fermé de tous côtés au moyen d'une pièce de fond (16) le couvrant du côté entraînement.
8. Rasoir électrique suivant la revendication 7, caractérisé en ce que, dans la pièce de fond (16), une plaque d'entraînement (23) est fixée de manière à pouvoir glisser.
9. Rasoir électrique suivant la revendication 8, caractérisé en ce que la plaque d'entraînement (23) est pourvue d'une rainure d'entraînement (44).
10. Rasoir électrique suivant la revendication 7 ou 8, caractérisé en ce que, sur la pièce de fond (16), deux organes d'arrêt (21, 22) sont prévus.
11. Rasoir électrique suivant la revendication 10, caractérisé en ce qu'il est prévu une goupille d'arrêt (15), qui coopère avec les organes d'arrêt (21, 22), fait saillie hors du boîtier (1) et peut être actionnée par un commutateur (14).
12. Rasoir électrique suivant l'une ou plusieurs des revendications précédentes, caractérisé: en ce que le dispositif de tête de rasage (2) est agence entre deux bras porteurs (11, 12) qui sont prévus sur le boîtier (1).
13. Rasoir électrique suivant la revendication 12, caractérisé en ce que le dispositif de tête de rasage (2) est fixé de manière à pouvoir pivoter sur les bras porteurs (11, 12) au moyen de deux boulons de support (37) ou de deux vis de fixation (39) (figure 10, 11).
14. Rasoir électrique suivant la revendication 12, caractérisé en ce que le dispositif de tête de rasage (2) est guidé de manière à pouvoir glisser dans des rainures (42, 43), qui sont prévues dans les bras porteurs (11, 12), au moyen de deux éléments de guidage (40, 41). (Figure 12).
EP87104364A 1986-03-29 1987-03-24 Rasoir électrique à tête de rasage pivotante Expired - Lifetime EP0239920B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87104364T ATE51562T1 (de) 1986-03-29 1987-03-24 Elektrischer rasierapparat mit einem schwenkbaren scherkopfsystem.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3610736 1986-03-29
DE19863610736 DE3610736A1 (de) 1986-03-29 1986-03-29 Elektrischer rasierapparat mit einem schwenkbaren scherkopfsystem

Publications (3)

Publication Number Publication Date
EP0239920A2 EP0239920A2 (fr) 1987-10-07
EP0239920A3 EP0239920A3 (en) 1989-04-05
EP0239920B1 true EP0239920B1 (fr) 1990-04-04

Family

ID=6297585

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87104364A Expired - Lifetime EP0239920B1 (fr) 1986-03-29 1987-03-24 Rasoir électrique à tête de rasage pivotante

Country Status (9)

Country Link
US (1) US4796359A (fr)
EP (1) EP0239920B1 (fr)
JP (1) JP2749571B2 (fr)
KR (1) KR940005311B1 (fr)
AT (1) ATE51562T1 (fr)
DE (2) DE3610736A1 (fr)
ES (1) ES2014269B3 (fr)
HK (1) HK54791A (fr)
SG (1) SG50191G (fr)

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DE3726354A1 (de) * 1987-08-07 1989-02-16 Braun Ag Elektrischer rasierapparat mit scherkopfsteuerung
DE3843936C1 (fr) * 1988-12-24 1990-05-31 Braun Ag, 6000 Frankfurt, De
DE3917847C1 (fr) * 1989-06-01 1990-05-31 Braun Ag, 6000 Frankfurt, De
DE3917849C1 (fr) * 1989-06-01 1990-11-29 Braun Ag, 6000 Frankfurt, De
DE3926894C1 (fr) * 1989-08-16 1990-12-06 Braun Ag, 6000 Frankfurt, De
DE9010731U1 (de) * 1990-07-18 1990-10-31 Peukert, Gerhard, 3500 Kassel Elektrisch betriebener Rasierapparat
US5131148A (en) * 1990-11-23 1992-07-21 Wahl Clipper Corporation Electric shaver with flexible cutter holder
US5189792A (en) * 1990-12-20 1993-03-02 Matsushita Electric Works, Ltd. Reciprocatory electric shaver
US5138767A (en) * 1991-03-11 1992-08-18 Remington Products, Inc. Enhanced cutting system for electric dry shavers
DE4117990A1 (de) * 1991-06-03 1992-12-10 Braun Ag Elektrischer rasierapparat
DE4128220C1 (fr) * 1991-08-26 1992-08-06 Braun Ag, 6000 Frankfurt, De
DE4128219A1 (de) * 1991-08-26 1993-03-04 Braun Ag Rasierapparat
DE4128221A1 (de) * 1991-08-26 1993-03-04 Braun Ag Elektrischer rasierapparat
DE4128218C1 (fr) * 1991-08-26 1992-08-06 Braun Ag, 6000 Frankfurt, De
US5611145A (en) * 1991-12-20 1997-03-18 Wetzel; Matthias Dry-shaving apparatus
DE4303972C1 (de) * 1993-02-11 1993-10-14 Braun Ag Trockenrasierapparat mit einem schwenkbar gelagerten Scherkopfsystem
JP3699736B2 (ja) 1995-01-11 2005-09-28 株式会社泉精器製作所 電気かみそり
JP3716353B2 (ja) * 1995-07-31 2005-11-16 九州日立マクセル株式会社 ロータリ式電気かみそり
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JP3979052B2 (ja) 2001-09-25 2007-09-19 松下電工株式会社 往復式電気かみそり
DE10246519A1 (de) 2002-10-05 2004-04-15 Braun Gmbh Haarentfernungsgerät
US8627573B2 (en) 2002-10-05 2014-01-14 Braun Gmbh Hair-removing device
JP2005040358A (ja) * 2003-07-22 2005-02-17 Matsushita Electric Works Ltd シェーバー
JP3972903B2 (ja) * 2003-12-26 2007-09-05 松下電工株式会社 電気かみそり
KR100660979B1 (ko) * 2004-10-08 2006-12-26 오태준 헤드무빙면도기
KR200373624Y1 (ko) * 2004-10-12 2005-01-27 오태준 왕복식 헤드무빙면도기
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JP4715425B2 (ja) * 2005-09-27 2011-07-06 パナソニック電工株式会社 電気かみそり
DE102006004675A1 (de) * 2006-02-02 2007-08-09 Braun Gmbh Elektrisch betriebener Rasierer
KR200426275Y1 (ko) 2006-06-08 2006-09-19 오태준 멀티형 헤드무빙면도기
DE102006030947A1 (de) 2006-07-05 2008-01-10 Braun Gmbh Elektrischer Trockenrasierapparat
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JP5576175B2 (ja) * 2010-04-27 2014-08-20 日立マクセル株式会社 電気かみそり
EP3854538B1 (fr) 2020-01-23 2024-10-16 Braun GmbH Tondeuse à barbe électrique
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Also Published As

Publication number Publication date
KR870008668A (ko) 1987-10-20
EP0239920A3 (en) 1989-04-05
HK54791A (en) 1991-07-26
DE3610736A1 (de) 1987-10-01
ATE51562T1 (de) 1990-04-15
DE3762101D1 (de) 1990-05-10
ES2014269B3 (es) 1990-07-01
DE3610736C2 (fr) 1988-04-21
US4796359A (en) 1989-01-10
EP0239920A2 (fr) 1987-10-07
JPS62227395A (ja) 1987-10-06
SG50191G (en) 1991-08-23
JP2749571B2 (ja) 1998-05-13
KR940005311B1 (ko) 1994-06-16

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