Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
  • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
  • B26B19/00—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
  • B26B19/02—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers of the reciprocating-cutter type
  • B26B19/04—Cutting heads therefor; Cutters therefor; Securing equipment thereof
  • 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

Definitions

• the invention relates to a hair clipper of the type specified in the preamble of claim 1
• a hair clipper of the type mentioned at the outset is known from US Pat. No. 2,741,026.
• the cutting head which is formed from a cutting comb and an oscillatingly driven cutting blade, is rigidly fastened to the fork ends of the fork-shaped housing head Pivotal movement of the hair clipper and the cutting comb attached to it, while the relatively wide distance between the row of cutting teeth used in the cutting head and the largest diameter of the housing of the hair clipper is intended to enable the use of the two rows of cutting teeth for trimming
• a hair clipper of the type mentioned is known, with a cutting head pivotally mounted for shaving and trimming in corresponding positions, consisting of a pivoting bearing element supported in a cam control, and a cutting comb having only one row of cutting teeth, and a cutting blade which means a spring leaf bearing against the support element is held in contact with the cutting comb.
• a drive element protruding from the upper side of the housing transmits the drive movement to the cutting blade to hold the shaving head in any pivot position by means of a friction provided
• the object of the invention is to improve a hair clipper of the type mentioned in terms of function and to facilitate handling
• the invention has several advantages.
• One of the advantages can then be seen that by means of the support element designed as a housing shell, the on the cutting head for the drive components provided for the cutting blade, such as a bearing block, cutting blade holder with coupling elements, as well as locking device and locking device, are largely encapsulated in order to prevent direct access of cut hair into this drive area.
• the housing shell also enables the arrangement of a locking device for fastening and removing the cutting head Purposes of cleaning and maintenance and therefore also facilitates its interchangeability
• Another important advantage of the invention results from the geometric shape of the housing shell pivotably mounted on the fork elements of the housing and the adjacent housing wall of the housing.
• the outer contour of the housing shell provided according to the invention ensures a relatively close adjustment of the inner contour of the housing wall of the housing via the overall provided swivel range of the housing shell
• the distance between the outer contour of the housing shell and the inner contour of the housing wall of the housing can be dimensioned so small that on the one hand a smooth pivoting movement of the housing shell is guaranteed and on the other hand penetration of cut hair into the interior of the housing is largely excluded
• a tenth of a millimeter distance between the inner contour of the housing wall of the housing and the outer contour of the housing shell is already sufficient for a smooth pivoting movement of the cutting head, as well as, for example, to prevent the penetration of hair into the interior of the housing
• the assignment of two cutting blades to a cutting comb advantageously enables a different design of the teeth of the cutting comb and the two rows of cutting teeth formed, for example, in such a way that the length of extension of one row of cutting teeth can be made significantly smaller than the length of extension of the other row of cutting teeth.
• Such different designs ensure optimal use of the hair clipper by starting up the row of cutting teeth suitable for the respective cutting process can, for example, be cut much more easily and easily with a row of cutting teeth of shorter extension length than with a larger or relatively long extension row of teeth with larger extension lengths, on the other hand, for example, are particularly suitable for contour cutting
• a wall of the housing shell is formed by the lateral surface of two assembled sectors of circular teeth
• the radius of the respective sectors of the circular cylinders is dimensioned the same size.
• the radius of the respective sectors of the circular cylinders is of different sizes.
• This measure according to the invention has several advantages.
• the different radii of the respective sectors of the circular cylinders bring about a geometrical shape of the housing shell with a stepped outer contour of the Shell surfaces or the wall of the housing shell
• This step-shaped shoulder can be used, for example, as a limit stop for the pivoting movement of the housing shell and thus the cutting head of the hair clipper.
• This measure furthermore results in a tight encapsulation of the drive elements and the cutting parts of the cutting head without unnecessary Loss of space
• the gain in space can be used, for example, to arrange additional components within the housing of the hair clipper
• the extension length of the lateral surface of the respective sectors of the circular cylinders is of different lengths at the edge of the housing shell
• the rows of cutting teeth of the cutting head have different extension lengths, so that the optimal extension length of a row of cutting teeth can be selected for the respective application.
• the extension length of the lateral surface essentially corresponds to the extension length the row of cutting teeth is adapted
• each end wall is formed by at least two conical surfaces with a different cone angle aligned with the pivot axis.
• a particularly simple mounting of the housing shell on the housing wall of the housing is characterized by the fact that one end of the conical surface leading to the pivot axis the housing shell is designed as a blunt cone with a bearing surface that intersects the pivot axis at right angles
• the geometrical design of the inner contour of the housing wall of the housing is adapted to that of the outer contour of the wall of the housing shell. This adaptation permits various embodiments. According to a preferred embodiment of the invention, it is provided that the conical surface of the end wall is curved according to a further preferred embodiment of the invention It is provided that the outer contour of the wall of the housing shell is rectilinear and / or curved.
• the inner contour of the housing wall of the housing receiving the housing shell is straight and / or arcuate is trained
• a preferred embodiment of the invention is characterized in that the end of the housing is fork-shaped and that the housing shell is pivotally mounted on the fork elements of the housing by means of a pivot bearing
• FIG. 1 is a perspective view of a hair clipper with a view of the actuation switch, a position switch, a support element designed as a housing shell, on which a cutting head is detachably held by a locking device,
• FIG. 2 shows the rear view of the hair clipper with a cutting head in an inclined position with rows of cutting teeth of different lengths
• FIG. 3 shows a top view of the hair clipper with a cutting head arranged on the upper end of the housing and held detachably by a locking device
• FIG. 4 shows a plan view of the upper end of the housing wall consisting of a front wall, a rear wall and two rare walls with a wall element covering the interior of the housing and penetrated by a drive element,
• FIG. 5 shows an exploded view of the upper part of a hair clipper, from the housing of which the housing shell and the cutting head and the hair length comb have been removed,
• FIG. 6 and FIG. 7 a cross section through the center of the cutting head S and the upper part of the housing with different positions of the cutting head
• 8 is an exploded view of the upper part of a hair clipper with a cutting head removed
• 8a is a perspective view of the cutting head according to FIG. 8 removed from the housing in a further position of use
• FIGS. 8 and 8a shows a section through a hair clipper according to FIGS. 8 and 8a with a wall element covering the interior of the housing
• FIGS. 8 and 8a shows a section through a hair clipper according to FIGS. 8 and 8a with a housing open at the top
• FIG. 11 shows a section through a cutting head pivotably mounted about a pivot axis with a sectional view of a part of the housing
• FIG. 13 is an exploded view of the upper part of a housing of a hair clipper with a cutting head removed
• FIG. 14 is a perspective view of the upper part of a housing without a cutting head
• 15 to 18 a view of the upper end of the housing wall consisting of a front wall, a rear wall and two side walls with a pivot axis Z lying on the center of the distance A between the front wall and rear wall,
• 19 to 22 a view of the upper end of the housing wall consisting of a front wall, a rear wall and two side walls with a position of the pivot axis which takes up different distances from the front wall and the rear wall.
• FIG. 1 shows the front view of a hair clipper HSM with an actuating switch 2 which is adjustably arranged on the front of the housing 1, as well as position switches 13 and a cutting comb 3 and a cutting blade 4 Cutting head S, which is pivotally mounted on the housing 1 about a pivot axis Z - see FIG. 5 -
• one end of the housing 1 is designed in a fork-like manner, such that a support element T, designed as a housing shell 5, can be pivotably mounted on the fork elements 6 and 7 by means of pivot bearings
• a recess 8 is provided in order to provide a drive element 12 - see FIG.
• a device socket 11 is provided for the indirect and / or direct operation of the hair clipper HSM
• FIG. 2 shows the rear view of the hair clipper HSM with a cutting head S located in an inclined position - see FIGS. 6 and 7 - with rows of cutting teeth 40, 41 of different lengths, the respective extension lengths of which are marked L10 and L20 parallel to a horizontal axis H
• FIG 3 shows a top view of the hair clipper HSM with a cutting head S arranged on the upper end of the housing 1 and held detachably by the locking device 9, 10
• FIG. 4 shows a plan view of the upper end of the housing wall 110 of the housing 1 of the hair clipper HSM without a cutting head S and without a housing shell 5, but consisting of a front wall 11 1, a rear wall 1 12 and two rare walls 113, 114, but with the interior of the housing 1 final wall element 20, which is penetrated by the drive element 12
• FIG. 5 shows an exploded view of the upper part of a hair clipper HSM, from the housing 1 of which the housing shell 5 as well as the cutting head S which can be attached and the hair length comb 15 are removed.
• the upper end of the housing 1 is fork-shaped, with cone bearing elements on the fork elements 6 and 7 16 and 17 are molded onto the conical bearing elements 18 and 19 of the housing shell 5 in order to form a pivot bearing.
• In the middle of the wall element 20 there is an opening 22 which is penetrated by the drive element 12 of an electrical drive located in the housing 1
• the housing shell 5 is essentially trough-shaped, with a recess 8 for the passage of the electric drive element 12 and a molded chamber 23 for receiving the components of a locking device RV.
• the cone bearing elements 18 and 19 are provided in the opposite end walls 24 and 25 of the housing shell 5 Housing shell 5 is held by means of the bearing bolts 26 and 27 and the spring elements 28 and 29 about the pivot axis Z by the conical bearing elements 16 and 17 and 18 and 19
• the cutting head S is detachably fastened to the supporting element 5 by means of at least the locking device 9, 10 - see FIGS. 1, 5.
• the cutting comb 3 of the cutting head S has two rows of cutting teeth 40, 41 running parallel to the pivot axis Z, which are opposite to each other on the long sides of the Cutting comb 3 are provided.
• the extension length L20 of the row of cutting teeth 41 is less than the extension length L10 of the row of cutting teeth 40.
• the heads of the fastening screws 30, 31 and 32 shown serve for fastening components of the cutting head S.
• 6 and 7 show a cross section through the center of the cutting head S and the upper part of the housing 1, the respective position of the cutting head S and thus of the cutting system used, formed by a cutting comb 3 and a cutting blade 4, by stops 90, 91, 92, 93, which are provided, for example, on the wall element 20, on the housing shell 5 or are formed by a latching device provided in the chamber 23 - see FIG. 5 -.
• the stops 92 and 93 can be provided, for example, by those provided in the housing shell 5 elongated recess 8 be formed in the housing 1, an electric motor 94 is arranged, the eccentric drive element 12 engages in a coupling element 81 in order to drive the respective operating system of the cutting head S, consisting of the cutting comb 3 and the cutting blade 4 Driving the cutting blade 4 provided coupling element 71 is located t out of engagement of the drive element 12
• the operating position of the row of cutting teeth 41 with the extension length L20 - see FIG. 2 - 6 is determined by the abutment of the stop 92 of the housing shell 5 against the stop 90 of the wall element 20 of the housing 1.
• a bearing block 60, a chassis 48 and a film 47 are attached to the flat surface by means of the fastening screw 31 Trained inner surface of the cutting comb 3 attached
• the cutting blade 4 attached to a driver 70 and the cutting blade 4 attached to a driver 80 abut with longitudinally extending contact surfaces on the film 47 and, due to the thickness of the film 47, receive a slight inclination in the direction of the row of cutting teeth 40 and row of cutting teeth 41 provided in each case
• the cutting head S is pivoted by a predetermined angle with respect to the representation according to FIG. 6 with respect to a vertical axis V and a horizontal axis H about the pivot axis Z, as a result of which the stop 93 has come into contact with the stop 91 in this Position of the cutting head S, the eccentric drive element 12 of the electric motor 94 is coupled to the coupling element 71, as a result of which the drive movement of the electric motor 94 in the configured state is transmitted to the cutting blade 4 via the provided driver 70, so that the cutting head S located in the operating position can be used to cut hair
• Fig. 8 shows an exploded view of the upper part of a hair clipper HSM with a removed cutting head S.
• the housing 1 in this embodiment consists of a front wall 1 1 1, a rear wall 112, two rare walls 113 and 114 and a shell-like wall element 20, which at the lower end of the two fork elements 6 and 7 is provided to protect the interior of the housing from the ingress of hair dust
• the fork elements 6 and 7 of the side walls 1 13 and 1 14 have an essentially triangular contour, whereby on both sides of the pivot axis Z the side walls 113 and 114 receive an oblique contour to the pivot axis Z.
• This design of the side walls 113 and 1 14 ensures a pivoting movement of the Cutting head S about the swivel axis Z corresponding to the angle that the respective inclined side walls 113, 114 of the fork elements 6 and 7 make to a horizontal plane or axis H.
• the cutting head S removed from the housing 1 has two rows of cutting teeth 40 and 41 arranged opposite one another, the length of extension L10 of the row of cutting teeth 40 being greater than the length of extension L20 of the row of cutting teeth 41.
• the end wall 24 of the housing shell 5 has three mutually different geometric surfaces, namely a conical jacket KM1, a further conical jacket KM2 and a bearing surface 34.
• the opposite end wall 25 of the housing shell 5 is designed corresponding to the end wall 24, so that the cutting head S by means of the bearing surface 34 on the bearing surfaces 35 provided on the fork elements 6 and 7 of the housing 1 can be pivotably supported When the cutting head S is shown in FIG. 8, the row of cutting teeth 41 is used
• the row of cutting teeth 40 is used.
• the wall of the housing shell 5 is formed by the lateral surface M1 and M2 of a circular cylinder Z1 and Z2 with a radius R1, R2 starting from the pivot axis Z and this circular cylinder Z1 and End walls 24 and 25 assigned to Z2 and having different conical surface areas KM1 and KM2.
• the radii R1 and R2 of the circular cylinders Z1 and Z2 are of the same size, for example
• the pivot axis Z runs through the center of the distance A between the front wall 11 1 and the rear wall 1 12 since the respective conical shells KM1 and KM2 extend to the respective extension length L20 and L10 of the cutting tooth rows 40 and 41 with respect to them
• Geometric training are adapted, there is a step-shaped shoulder 37 from the conical jacket KM1 to the conical jacket KM2.
• a paragraph 36 is provided on the fork ends 6 and 7 on the side adjacent to the conical jacket KM1 and KM2, such that the housing wall 110 overall has an inner contour which corresponds essentially parallel to the outer contour of the wall of the housing shell 5
• FIGS. 9 and 10 show a section through a hair clipper HSM according to FIGS. 8 and 8A with the difference that in the embodiment according to FIG. 9 the front wall 111 is connected to the rear wall 1 12 by a shell-like wall element 20, while in the embodiment according to FIG Fig. 10 between the front wall 1 1 1 and back wall 112 no wall element 20 is provided.
• the sectional view of the cutting head S makes it clear that the lateral surface M1 with the radius R1 is identical to the lateral surface M2 with the radius R2
• FIGS. 11 and 12 each show a cutting head S which is pivotably mounted about a pivot axis Z and a sectional illustration of the upper part of the housing 1.
• the pivot axis is not provided on the center of the distance A which the front wall 111 and the rear wall 112 assume each other, but in a smaller distance B from the front wall 111 or at a greater distance C from the rear wall 112.
• the wall of the housing shell 5 is of two composite sectors S1, S2 by the outer surface M1 with the radius R1 and the outer surface M2 with the radius R2 Circular cylinders Z1 and Z2 formed
• the sector angle of the sector SK1 with the radius R1 is less than 90 °
• the sector SK2 with the radius R2 is greater than 90 ° through such a configuration and composition of two sectors SK1 and SK2 of two circular cylinders Z1 and Z1 with the radii R1 and R2 result in two Usually a different geometrical configuration of the conical surface KM and KM 2 of the front side walls 24 and 25 ends.
• the front wall 1 1 1 ends at a relatively small distance, which is identified as gap 38 in FIGS. 11 and 12.
• the size of the gap 38 is to be dimensioned such that only a smooth pivoting movement of the cutting unit S about the pivot axis Z is ensured
• the front wall 111 and the rear wall 112 are connected to one another via a shell-shaped, stepped wall element 20.
• the stepped shoulder 37 is provided at such an angle to the vertical axis V intersecting the pivot axis Z that an unobstructed pivot movement of the cutting head S within its predetermined swivel range, which is determined, for example, by stops 90, 91, 92, 93 or by abutment on a shoulder 36
• FIG. 13 shows a perspective view of the upper part of a housing 1 and of a cutting head S of the embodiment according to FIG. 11.
• the different sizes of the radii R1 and R2 of the lateral surfaces M1 and M2 of the assembled sectors SK1 and SK2 of the circular cylinders Z1 and Z2 result in a step transition of these sectors SK1, SK2, which can be used, for example, as a stop on a stepped shoulder 36 of the wall element 20 to limit the pivoting movement of the cutting head S.
• the step-shaped shoulder 36 is provided on the inside of the rear wall 112.
• the walls of the housing 1 adjacent to the housing shell 5 have an inner contour that is essentially parallel to the correspond to the outer contour of the outer surface M1 and M2 and the conical surface KM1 and KM2.
• the inner surfaces 50 and 51 respectively present on the inside of the fork elements 6 and 7 are designed in their shape in accordance with the shape of the outer surfaces of the conical surface KM1 and KM2
• FIGS. 15 to 21 show a view of the upper end of the housing wall 110 of the housing 1 consisting of a front wall 11 1, a rear wall 112 and two rare walls 113 and 114, the hair clipper HSM without a cutting head S and without a housing shell 5, but with one of these Interior of the housing 1 closing wall element 20, which is penetrated by the drive element 12
• the pivot axis Z runs at the center of the distance A, which the front wall 11 1 and the rear wall 112 occupy to one another.
• the distances B and C are therefore of the same size.
• the inner contour of the through the front wall 11, Back wall 1 12 and the side walls 113 and 114 formed housing wall 110 is straight in the embodiment according to FIG. 15, at least on wall edges of these walls.
• the inner contour of the side walls 113 and 114 is curved at the end and the inner contour adjoining it
• the front wall 111 and the rear wall 112 have a rectilinear end.
• the inner contour of the respective ends of the side walls 113 and 114 is rectilinear, while the ends of the inner contour of the front wall 11 and the rear wall 112 are each arcuate
• FIGS. 16 and 17 shows an embodiment in which the inner contour of all the walls of the housing wall 110 is curved at the end.
• the contour of the housing wall 110 to the outer contour of the housing shell 5 results from the different extension lengths of the jacket surfaces M1 and M2 - see FIGS. 13 and 14 - step-like shoulders 36 on the rare walls 113 and 114 - see FIGS. 15 and 16 - and an additional step-like shoulder 36 on the rear wall 112 of the embodiments according to FIGS. 16 and 17
• the pivot axis Z is not provided at the center of the distance A between the front wall 111 and the rear wall 112, but at a smaller distance B from the front wall 111 or at a greater distance C from the rear wall 112 the different extension lengths of the lateral surfaces M1 and M2 of a housing shell 5 - see FIGS. 13 and 14 - results in an inner contour for the side walls 113 and 1 14 of the housing wall 110 with a cone angle ⁇ 1 and ⁇ .2 aligned with the pivot axis Z a step-shaped shoulder 36 forming a housing area on the front wall 111, which partially merges into the side wall 113 and 114, in the embodiments according to FIGS.
• FIGS. 19 and 20 and 21 show inner contours of housing walls 110 which are linear or curved or consist of a combination of straight inner contours with arched inner contours, to which correspondingly shaped outer contours of the housing shell 5 are assigned

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

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• 1999
  • 1999-08-20 DE DE19939509A patent/DE19939509C2/de not_active Expired - Fee Related
• 2000
  • 2000-07-31 DE DE50005220T patent/DE50005220D1/de not_active Expired - Fee Related
  • 2000-07-31 JP JP2001518230A patent/JP2003507145A/ja not_active Withdrawn
  • 2000-07-31 EP EP00956361A patent/EP1204512B1/fr not_active Expired - Lifetime
  • 2000-07-31 WO PCT/EP2000/007392 patent/WO2001014107A1/fr active IP Right Grant
  • 2000-07-31 AT AT00956361T patent/ATE258842T1/de not_active IP Right Cessation
  • 2000-07-31 AU AU68333/00A patent/AU6833300A/en not_active Abandoned
  • 2000-07-31 CN CNB008118515A patent/CN1180920C/zh not_active Expired - Fee Related
• 2002
  • 2002-02-20 US US10/081,406 patent/US6505404B2/en not_active Expired - Fee Related

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