ATE551160T1 - LOWER KNIFE FOR A DRY RAZOR HEAD - Google Patents
LOWER KNIFE FOR A DRY RAZOR HEADInfo
- Publication number
- ATE551160T1 ATE551160T1 AT07724091T AT07724091T ATE551160T1 AT E551160 T1 ATE551160 T1 AT E551160T1 AT 07724091 T AT07724091 T AT 07724091T AT 07724091 T AT07724091 T AT 07724091T AT E551160 T1 ATE551160 T1 AT E551160T1
- Authority
- AT
- Austria
- Prior art keywords
- cutting
- cutting edge
- angle
- behaviour
- movement
- Prior art date
Links
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
-
- 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
- B26B19/044—Manufacture and assembly of cutter blocks
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Dry Shavers And Clippers (AREA)
- Knives (AREA)
Abstract
The present invention relates to a lower cutter (4) for a shaving head, equipped with an upper cutter (7), of an electric razor, comprising at least one blade (10) which has a cutting edge (11) pointing in a direction of movement. The invention also relates to a shaving head having such a lower cutter and to an electric razor equipped with it. It is proposed to no longer give the cutting edge the conventional wedge-shaped configuration in which simply two planes inclined at an acute angle define the cutting edge contour. According to the invention, the cutting edge has, one behind the other in the direction of movement (16), at least two cutting edge sections (18,19) having different cutting angles. By means of a cutting angle graduation or a changing cutting angle, an optimum compromise can be achieved between the conflicting requirements of cutting behaviour and edge stability. The cutting edge section having the more obtuse or less acute cutting angle produces the desired cutting edge stability and at the same time provides for a long service life. On the other hand, the cutting edge sections having the more acute angle reduce the cutting forces, such that an improved threading behaviour can be achieved.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006023774A DE102006023774A1 (en) | 2006-05-20 | 2006-05-20 | Undercutter for a dry razor shaving head |
PCT/EP2007/003150 WO2007134672A1 (en) | 2006-05-20 | 2007-04-07 | Lower cutter for a shaving head of an electric razor |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE551160T1 true ATE551160T1 (en) | 2012-04-15 |
Family
ID=38180454
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT07724091T ATE551160T1 (en) | 2006-05-20 | 2007-04-07 | LOWER KNIFE FOR A DRY RAZOR HEAD |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP2021153B1 (en) |
JP (1) | JP5242559B2 (en) |
CN (1) | CN101448610B (en) |
AT (1) | ATE551160T1 (en) |
DE (1) | DE102006023774A1 (en) |
RU (1) | RU2434738C2 (en) |
WO (1) | WO2007134672A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005036383A1 (en) * | 2005-07-29 | 2007-02-01 | Braun Gmbh | Shaving head for an electric shaver comprises a blade with an outer delimiting section facing an upper blade which is raised opposite the cutting edge |
DE102008027224A1 (en) * | 2008-06-06 | 2009-12-10 | Braun Gmbh | Undercutter for the shaving head of a dry shaver |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2238813A (en) | 1940-03-30 | 1941-04-15 | Jacob L Kleinman | Razor |
FR989663A (en) | 1944-02-24 | 1951-09-12 | Dry shaving device | |
JPS5341590B2 (en) * | 1971-09-22 | 1978-11-04 | ||
JPS5547879A (en) * | 1978-09-30 | 1980-04-05 | Matsushita Electric Works Ltd | Electric razor |
NL7811437A (en) * | 1978-11-21 | 1980-05-23 | Philips Nv | SHAVER. |
DE2857601C2 (en) * | 1978-12-07 | 1982-01-14 | Philips Patentverwaltung Gmbh, 2000 Hamburg | "Shear knife for a dry shaver with a pre-knife serving as a hair pulling element" |
DE3047888A1 (en) * | 1980-12-19 | 1982-07-15 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Cutting tools, esp. razor blades - where CVD activated by plasma is used to coat tool with carbon possessing structure similar to diamond |
GB2226972A (en) * | 1989-01-17 | 1990-07-18 | Rong Fang Yu | Blade device for an electric shaver |
DE4423503C1 (en) | 1994-07-05 | 1995-04-20 | Braun Ag | Bottom blade for a dry shaver apparatus |
EP0743144B1 (en) | 1995-05-19 | 2000-10-11 | Matsushita Electric Works, Ltd. | Cutter combination for an electric shaver |
JP4948735B2 (en) * | 2000-05-23 | 2012-06-06 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | Shaving equipment |
US6951056B2 (en) * | 2001-08-10 | 2005-10-04 | Matsushita Electric Works, Ltd. | Electric razor inner blade unit |
EP1426148B1 (en) * | 2001-09-10 | 2005-07-06 | Matsushita Electric Works, Ltd. | Method of manufacturing inner blade for electric razor |
JP4032808B2 (en) * | 2002-04-19 | 2008-01-16 | 松下電工株式会社 | Hair clipper blade manufacturing method |
JP4024715B2 (en) * | 2003-05-12 | 2007-12-19 | 九州日立マクセル株式会社 | Electric razor |
JP2005168631A (en) * | 2003-12-09 | 2005-06-30 | Izumi Products Co | Reciprocating electric razor |
-
2006
- 2006-05-20 DE DE102006023774A patent/DE102006023774A1/en not_active Withdrawn
-
2007
- 2007-04-07 AT AT07724091T patent/ATE551160T1/en active
- 2007-04-07 RU RU2008145761/02A patent/RU2434738C2/en not_active IP Right Cessation
- 2007-04-07 WO PCT/EP2007/003150 patent/WO2007134672A1/en active Application Filing
- 2007-04-07 CN CN2007800184427A patent/CN101448610B/en active Active
- 2007-04-07 EP EP07724091A patent/EP2021153B1/en active Active
- 2007-04-07 JP JP2009510301A patent/JP5242559B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
CN101448610A (en) | 2009-06-03 |
RU2434738C2 (en) | 2011-11-27 |
WO2007134672A1 (en) | 2007-11-29 |
JP2009537189A (en) | 2009-10-29 |
WO2007134672A8 (en) | 2008-11-13 |
DE102006023774A1 (en) | 2007-11-22 |
CN101448610B (en) | 2011-11-30 |
RU2008145761A (en) | 2010-05-27 |
EP2021153B1 (en) | 2012-03-28 |
JP5242559B2 (en) | 2013-07-24 |
EP2021153A1 (en) | 2009-02-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
MY140807A (en) | Shaving razors with multiple blades | |
PL2272639T3 (en) | Razor cartridge with inter-blade guard | |
WO2007116356A3 (en) | Cutting members for shaving razors | |
MX2012001503A (en) | Shaving blade unit with self-leveling trimmer. | |
GB0515990D0 (en) | Razors | |
ES2358035T8 (en) | RAZOR. | |
ATE457854T1 (en) | HAIR CUTTER | |
PL1729936T3 (en) | Razor cartridge | |
MX2010003350A (en) | Decreasing blade spans. | |
WO2007089497A3 (en) | Steep angle cutter hub with blunt edge blades | |
TW200531767A (en) | End cutter with cutting edge | |
ATE551160T1 (en) | LOWER KNIFE FOR A DRY RAZOR HEAD | |
WO2007116397A3 (en) | Safety razor head blade system | |
DE502006005984D1 (en) | SHEAR HEAD FOR AN ELECTRIC SHAVER | |
AU2003271533A1 (en) | Arrangement for retro-actively cutting wiper blades | |
MX2007015281A (en) | Full point width cutting blades. | |
CN207465302U (en) | Face-cloth paper cutting mechanism | |
CN201534333U (en) | External knife of reciprocating electric shaver | |
CN214213890U (en) | Linear cutter | |
ATE539646T1 (en) | PINKING SHEARS | |
CN204277051U (en) | Two-sided hexagonal 12 sword slabbing series cutterhead | |
CN201161395Y (en) | Blade of electric razor | |
CN101966704A (en) | Arc shaver head | |
CN205702669U (en) | The blade Improved structure of section bar shear | |
KR20090007463U (en) | Multi-function Scissors |