EP0074684B1 - Shaving apparatus - Google Patents

Shaving apparatus Download PDF

Info

Publication number
EP0074684B1
EP0074684B1 EP82201106A EP82201106A EP0074684B1 EP 0074684 B1 EP0074684 B1 EP 0074684B1 EP 82201106 A EP82201106 A EP 82201106A EP 82201106 A EP82201106 A EP 82201106A EP 0074684 B1 EP0074684 B1 EP 0074684B1
Authority
EP
European Patent Office
Prior art keywords
cutting member
cutting
shaving
internal
external
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
Application number
EP82201106A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0074684A3 (en
EP0074684A2 (en
Inventor
Antonius P. J. A. Claassens
Freddy Haes
Henk Lijzenga
Cornelis Marinus Reynhout
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
Koninklijke Philips Electronics NV
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 Philips Gloeilampenfabrieken NV, Koninklijke Philips Electronics NV filed Critical Philips Gloeilampenfabrieken NV
Priority to AT82201106T priority Critical patent/ATE19986T1/de
Publication of EP0074684A2 publication Critical patent/EP0074684A2/en
Publication of EP0074684A3 publication Critical patent/EP0074684A3/en
Application granted granted Critical
Publication of EP0074684B1 publication Critical patent/EP0074684B1/en
Expired legal-status Critical Current

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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
    • B26B19/14—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers of the rotary-cutter type; Cutting heads therefor; Cutters therefor

Definitions

  • the invention relates to a shaving apparatus comprising an external cutting member having a shaving portion formed with hair-entry apertures and an internal cutting member which is rotatable relative to the external cutting member and which comprises cutting elements which extend in an axial direction towards said shaving portion.
  • Such a shaving apparatus is known from NL-A-72 17 486.
  • this apparatus the free ends of the cutting elements are in contact with the inner side of the shaving portion of the external cutting member. During use of the apparatus this will produce annoying noise and wear will occur at the areas of contact, whilst the external cutting member may become uncomfortably hot due to friction.
  • the known construction is such that the clearance between the two cutting members may vary as a result of forces obtaining during shaving, so that the clearance between the cutting members may become too large for an effective shaving action.
  • the invention is characterized in that the internal and external cutting members are provided with interacting bearing surfaces for rotationally supporting the two cutting members relative to each other in the axial direction, said bearing surfaces immediately adjoining the cutting elements and the shaving portion of the respective cutting members and forming integral parts of said cutting members.
  • the shaving apparatus shown in Figures 1 and 2 comprises a housing 1, of which a part is formed as a holder 2 for three external cutting members 3.
  • the cutting members 3 are formed with slit-like hair entry apertures 4, which are represented by a single line in Fig. 1 and which are located in an annular shaving portion 5 of each cutting member.
  • each internal cutting member 6 is arranged at the inner side of each external cutting member 3.
  • Each internal cutting member 6 mainly comprises a plate-shaped body 7 and cutting elements 8 which extend in an axial direction towards the shaving portion 5 of the associated external cutting member.
  • each internal cutting member 6 is coupled to the electric motor 13, to be rotated thereby relative to the associated external cutting member 3.
  • the gear-wheel 10 is journalled on a pin 14 mounted in a mounting plate 15.
  • the gear-wheel 10 formed with a recess 16 which is closed by a cover 17.
  • the recess 16 engages with a flange 18 at the end of the hollow spindle 9.
  • a cylindrical portion 20 of the spindle 9 bears against the cutting member 6 to transmit said force to this cutting member and via this cutting member to the associated external cutting member 3, so that a flange 21 on the rim of the external cutting member 3 is urged against the holder 2.
  • the cutting members 3 and 6, together with the spindle 9, can be pressed inwards against the action of the spring 19 by external forces such as those which may occur during use of the shaving apparatus.
  • a coupling for transmitting the rotary movement of the spindle 9 to the internal cutting member 6 is formed by an end portion 22 of the spindle of rectangular cross-section engaging in a corresponding rectangular coupling aperture 23 in the cutting member 6.
  • a peripheral portion of the plate-shaped body 7 of each internal cutting member 6 forms a flange 24 which is in contact with a flange 25 on the rim of the associated external cutting member 3.
  • the respective contact surfaces 26 and 27 of the flanges 24 and 25 constitute a plain bearing by means of which the two cutting members 3 and 6 are journalled relative to each other.
  • the clearance 28 between the face ends of the cutting elements 8 and the shaving portion 5 can now be optimized for an effective shaving action.
  • the cutting elements 8 and the shaving portion 5 do not touch each other, so that these parts are not subject to wear and no noise and heat are produced at the location of the shaving portion as a result of friction.
  • the sliding contact between the contact surfaces 26 and 27 of the flanges, 24 and 25 can be optimized, so that a substantial improvement of the bearing arrangement is obtained in comparison with that attainable between the ends of the cutting elements 8 and the shaving portion 5 with the hair-entry apertures 4, with the result that less power is required for driving the internal cutting members 6.
  • the internal cutting member 6 comprises a hollow cylindrical, central boss 29 whose flat end surface 30 constitutes a plain bearing with the surface 31 of the central recessed portion 32 of the external cutting member 3.
  • the cutting members can be centred relative to each other by providing a slight clearance between the ring of cutting elements 8 and the recessed portion 32.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dry Shavers And Clippers (AREA)
  • Formation And Processing Of Food Products (AREA)
EP82201106A 1981-09-11 1982-09-08 Shaving apparatus Expired EP0074684B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82201106T ATE19986T1 (de) 1981-09-11 1982-09-08 Elektrischer rasierapparat.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8104202A NL8104202A (nl) 1981-09-11 1981-09-11 Scheerapparaat.
NL8104202 1981-09-11

Publications (3)

Publication Number Publication Date
EP0074684A2 EP0074684A2 (en) 1983-03-23
EP0074684A3 EP0074684A3 (en) 1983-12-28
EP0074684B1 true EP0074684B1 (en) 1986-05-28

Family

ID=19838045

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82201106A Expired EP0074684B1 (en) 1981-09-11 1982-09-08 Shaving apparatus

Country Status (5)

Country Link
EP (1) EP0074684B1 (enrdf_load_stackoverflow)
JP (1) JPS5850983A (enrdf_load_stackoverflow)
AT (1) ATE19986T1 (enrdf_load_stackoverflow)
DE (1) DE3271382D1 (enrdf_load_stackoverflow)
NL (1) NL8104202A (enrdf_load_stackoverflow)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5283953A (en) * 1991-11-26 1994-02-08 Matsushita Electric Works, Ltd. Rotary dry shaver
JPH0842785A (ja) * 1994-08-01 1996-02-16 Otani Sakurai Tekko Kk 多用途複脚構造体
US6212776B1 (en) * 1997-02-25 2001-04-10 Izuma Products Company Electric shaver
WO1999050033A1 (en) * 1998-03-27 1999-10-07 Koninklijke Philips Electronics N.V. Shaving apparatus
CN101835627B (zh) 2007-10-26 2011-08-03 三菱铅笔株式会社 自动铅笔

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL97479C (enrdf_load_stackoverflow) * 1900-01-01
US2923057A (en) * 1953-10-05 1960-02-02 Philips Corp Shear plate and cutter arrangement for a dry shaver

Also Published As

Publication number Publication date
ATE19986T1 (de) 1986-06-15
EP0074684A3 (en) 1983-12-28
JPS5850983A (ja) 1983-03-25
NL8104202A (nl) 1983-04-05
JPH0212598B2 (enrdf_load_stackoverflow) 1990-03-22
EP0074684A2 (en) 1983-03-23
DE3271382D1 (en) 1986-07-03

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