EP0306711B1 - Rasierklingeneinheit - Google Patents
Rasierklingeneinheit Download PDFInfo
- Publication number
- EP0306711B1 EP0306711B1 EP88112762A EP88112762A EP0306711B1 EP 0306711 B1 EP0306711 B1 EP 0306711B1 EP 88112762 A EP88112762 A EP 88112762A EP 88112762 A EP88112762 A EP 88112762A EP 0306711 B1 EP0306711 B1 EP 0306711B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- disposed
- cutting edges
- roller
- razor
- blades
- 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
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
- B26B21/00—Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor
- B26B21/40—Details or accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
- B26B21/00—Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor
- B26B21/08—Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor involving changeable blades
- B26B21/14—Safety razors with one or more blades arranged transversely to the handle
- B26B21/22—Safety razors with one or more blades arranged transversely to the handle involving several blades to be used simultaneously
Definitions
- the invention relates to a razor blade unit for a wet shaving apparatus, in which a razor blade or two razor blades parallel to one another are arranged in a plastic body, the plastic body having a guide surface parallel to the cutting edges of the razor blades in the shaving direction in front of the cutting edges of the razor blades and a protective cap in the razor device behind the Has cutting edges of the razor blades, wherein in this protective cap with a slight overhang a cylindrical roller about an axis parallel to the cutting edges of the razor blades is freely rotatable.
- Such a razor blade unit for a wet shaver is known from US Pat. No. 4,378,633, in which two parallel razor blades are resiliently arranged in a plastic body. Both in front of and behind both razor blades there is a roller which is freely rotatable about an axis parallel to the cutting edges of the razor blades. While the roller in the area of the front guide surface of the plastic body, like the two razor blades, is resiliently mounted within the plastic body, the rear roller in the area of the protective cap can be rotated freely within the plastic body and is supported with a small projection.
- a wet shaver which is either made of metal or - apart from the razor blades - is made of plastic.
- a razor blade is fixed between a base plate and a cover of the razor head.
- a roller which is cylindrical about an axis parallel to the two cutting edges of the razor blade is freely rotatable. The purpose of this, together with the front guide strip of the base plate, is to specify a specific shaving angle.
- the object of the invention is to further develop the known razor blade unit for a wet shaver of the type specified at the outset in such a way that a better shaving result is achieved by improving the shaving geometry.
- a single cylindrical roller made of metal is provided for the razor blade unit and this is arranged in the protective cap behind the cutting edges of the razor blades and that the razor blades, the cutting edges of which are made between the front plastic guide surface and the rear roller Metal are arranged, are embedded in the plastic body.
- a razor blade unit for a wet shaver designed according to this technical teaching has the advantage that it achieves very good shaving success and thus improved comfort when shaving. This is achieved by means of a significantly improved shaving geometry due to an improved skin tension, due to a difference between the coefficient of friction of the front plastic guide surface and the coefficient of friction of the rear metal roller. Since the coefficient of friction of the plastic is greater than that of the metal, the front plastic guide surface pushes the skin in front of it, while the rear metal roller slides over the skin, so that the skin is stretched between the guide surface and the roller, which in addition improves Successful shaving and improved comfort.
- the razor blade unit for a wet shaving apparatus consists of a plastic body 1, in which two razor blades 2, 2 'are embedded in the form of a double razor blade, the cutting edges 3, 3' of the razor blades 2, 2 'being arranged one behind the other offset.
- a protective cap 4 of the plastic body 1 The surfaces of the razor blades 2, 2 'lying behind the cutting edges 3, 3' are covered by a protective cap 4 of the plastic body 1.
- a roller 7 made of metal is freely rotatable about an axis 6, wherein this roller 7 made of metal has a slight protrusion with respect to the protective cap 4.
- a transverse guide surface 8 is formed, which is formed in one piece with the plastic body 1 and thereby with its side legs 5.
- the roller 7 made of metal has in contact with the skin a significantly lower coefficient of friction compared to the plastic of the plastic body 1, both in the dry and in the wet state, so that the frictional forces occurring on the metal roller are greatly reduced.
- This difference in coefficient of friction has the advantage that the skin in the region of the front guide surface 8 made of plastic is pushed in front of it, while the rear roller 7 slides over the skin made of metal, so that the skin is stretched between, which leads to improved shaving success and leads to improved comfort.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Dry Shavers And Clippers (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT88112762T ATE56383T1 (de) | 1987-08-25 | 1988-08-05 | Rasierklingeneinheit. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE8711505U DE8711505U1 (de) | 1987-08-25 | 1987-08-25 | Rasierklingeneinheit |
| DE8711505U | 1987-08-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0306711A1 EP0306711A1 (de) | 1989-03-15 |
| EP0306711B1 true EP0306711B1 (de) | 1990-09-12 |
Family
ID=6811391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP88112762A Expired - Lifetime EP0306711B1 (de) | 1987-08-25 | 1988-08-05 | Rasierklingeneinheit |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US5001832A (el) |
| EP (1) | EP0306711B1 (el) |
| JP (1) | JPS6470090A (el) |
| KR (1) | KR970010845B1 (el) |
| AT (1) | ATE56383T1 (el) |
| BR (1) | BR8804316A (el) |
| DE (2) | DE8711505U1 (el) |
| ES (1) | ES2017779B3 (el) |
| GR (1) | GR3001181T3 (el) |
| HK (1) | HK152695A (el) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6228428B1 (en) | 1991-10-28 | 2001-05-08 | The Gillette Company | Coating cutting edges with fluorocarbon polymers |
| US5263256A (en) * | 1992-04-17 | 1993-11-23 | The Gillette Company | Method of treating razor blade cutting edges |
| US5249361A (en) * | 1992-05-13 | 1993-10-05 | The Gillette Company | Guard for razor blade assembly |
| USRE36816E (en) * | 1992-05-13 | 2000-08-15 | The Gillette Company | Guard for razor blade assembly |
| US6944952B1 (en) | 1994-07-01 | 2005-09-20 | The Gillette Company | Shaving system |
| US6594904B1 (en) | 1994-07-01 | 2003-07-22 | The Gillette Company | Shaving system |
| US6298558B1 (en) | 1994-10-31 | 2001-10-09 | The Gillette Company | Skin engaging member |
| US5579580A (en) * | 1995-03-31 | 1996-12-03 | Warner-Lambert Company | Bi-directional wire-wrapped blade cartridge |
| US5671534A (en) * | 1996-07-15 | 1997-09-30 | Mayerovitch; M. Dave | Razor blade assembly |
| CA2220443A1 (en) * | 1997-01-17 | 1998-07-17 | Warner-Lambert Company | Reduced frction razor head |
| US6167625B1 (en) | 1999-05-18 | 2001-01-02 | Warner-Lambert Company | Shaving implement |
| US7140115B2 (en) * | 2004-05-10 | 2006-11-28 | Greene Todd M | Shaving apparatus with wheel |
| US20100122464A1 (en) * | 2008-11-14 | 2010-05-20 | Thilivhali Tshikovhi Ndou | Razor Cartridge with Skin Engaging Member |
| US20100122463A1 (en) * | 2008-11-14 | 2010-05-20 | Thilivhali Tshikovhi Ndou | Skin Engaging Member for Razor Cartridge |
| WO2016091301A1 (en) * | 2014-12-10 | 2016-06-16 | Bic-Violex Sa | A shaving blade assembly comprising a blade unit and a skin contact member and a razor comprising a razor handle and such a shaving blade assembly |
| CN109159156A (zh) * | 2018-11-07 | 2019-01-08 | 浙江海顺电工有限公司 | 一种剃毛器及其刀片结构 |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1860680A (en) * | 1927-09-03 | 1932-05-31 | Henry J Lucke | Safety razor |
| US2068085A (en) * | 1935-02-27 | 1937-01-19 | Nathan M Stanley | Safety razor |
| US2083580A (en) * | 1936-05-25 | 1937-06-15 | Schmitt George Philip | Guard for razors and hair clippers |
| US2198531A (en) * | 1939-05-08 | 1940-04-23 | James E Parr | Safety razor |
| US2300794A (en) * | 1941-02-15 | 1942-11-03 | Robert P Martin | Razor |
| JPS49118561A (el) * | 1973-03-16 | 1974-11-13 | ||
| US4378633A (en) * | 1979-12-07 | 1983-04-05 | The Gillette Company | Razor blade assembly |
| AT387744B (de) * | 1980-04-10 | 1989-03-10 | Friedrich Schaechter | Rasiergeraet |
| US4621792A (en) * | 1983-10-26 | 1986-11-11 | Thurston Antony N | Cutting tool attachment |
| US4562644A (en) * | 1984-08-10 | 1986-01-07 | Hitchens Peter B | Lubricant-applying safety razor |
| US4586255A (en) * | 1984-10-15 | 1986-05-06 | The Gillette Company | Razor blade assembly |
| US4683096A (en) * | 1986-01-31 | 1987-07-28 | Warner-Lambert Company | Method of securing a shaving aid to a razor cartridge |
-
1987
- 1987-08-25 DE DE8711505U patent/DE8711505U1/de not_active Expired
-
1988
- 1988-08-05 DE DE8888112762T patent/DE3860605D1/de not_active Expired - Lifetime
- 1988-08-05 AT AT88112762T patent/ATE56383T1/de active
- 1988-08-05 ES ES88112762T patent/ES2017779B3/es not_active Expired - Lifetime
- 1988-08-05 EP EP88112762A patent/EP0306711B1/de not_active Expired - Lifetime
- 1988-08-12 JP JP63200329A patent/JPS6470090A/ja active Pending
- 1988-08-24 US US07/235,949 patent/US5001832A/en not_active Expired - Lifetime
- 1988-08-24 BR BR8804316A patent/BR8804316A/pt not_active IP Right Cessation
- 1988-08-25 KR KR1019880010820A patent/KR970010845B1/ko not_active IP Right Cessation
-
1990
- 1990-12-11 GR GR90401049T patent/GR3001181T3/el unknown
-
1995
- 1995-09-21 HK HK152695A patent/HK152695A/xx not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| BR8804316A (pt) | 1989-03-21 |
| US5001832A (en) | 1991-03-26 |
| JPS6470090A (en) | 1989-03-15 |
| DE3860605D1 (de) | 1990-10-18 |
| KR890003500A (ko) | 1989-04-15 |
| HK152695A (en) | 1995-09-29 |
| GR3001181T3 (en) | 1992-06-30 |
| EP0306711A1 (de) | 1989-03-15 |
| KR970010845B1 (ko) | 1997-07-01 |
| DE8711505U1 (de) | 1987-10-08 |
| ES2017779B3 (es) | 1991-03-01 |
| ATE56383T1 (de) | 1990-09-15 |
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