Razor head having a low shaving angle

Patent metadata

Field	Value
Publication number	US-9789618-B2
Application number	US-201214350295-A
Country	US
Kind code	B2
Filing date	Oct 8, 2012
Priority date	Oct 6, 2011
Publication date	Oct 17, 2017
Grant date	Oct 17, 2017

Abstract

A razor head that includes a housing having a top face defining a shaving window delimited by a front guard and a rear cap together defining a tangent plane, at least one rigid cutting member, each freely mounted in the housing, and having a cutting edge portion extending along a cutting edge portion axis, and having a cutting edge accessible through the shaving window, a guided portion extending along a guided portion axis, and a bent portion intermediate the cutting edge portion and the guided portion. An angle measured between the cutting edge axis and the tangent plane is between 5° and 30°.

First claim

The invention claimed is:

1. A razor head comprising:
a housing having a top face defining a shaving window delimited by a front guard and a rear cap, together defining a tangent plane,
at least one rigid cutting member each movably mounted in a blade-receiving section of the housing, and having:
a cutting edge portion extending along a cutting edge portion axis, and having a cutting edge accessible through the shaving window,
a guided portion extending along a guided portion axis, and
a bent portion intermediate the cutting edge portion and the guided portion,

wherein each cutting member is an integrally formed rigid blade comprising the cutting edge portion, the guided portion extending along the guided portion axis, and the bent portion intermediate the cutting edge portion and the guided portion,
wherein an angle measured between the cutting edge axis and the tangent plane is between approximately 12° and 18°,
wherein the housing has a guide, wherein the cutting members are guided for movement in the guide from a nominal position achieved when not shaving, wherein the angle measured between the cutting edge axis and the tangent plane is measured in the nominal position.

2. The razor head according to claim 1 , wherein the cutting members are guided for movement in a direction perpendicular to the tangent plane.

3. The razor head according to claim 2 , wherein the guided portion of the cutting members cooperates with the guide so that each cutting member is independently translatable with respect to the housing along a sliding direction parallel to the guided portion axis, under the effect of shaving forces applied to the blade during shaving.

4. The razor head according to claim 1 , wherein the guided portion has a plane shape, the cantilever dimension, measured from the cutting edge to the plane of the guided portion along the direction of the tangent plane, is smaller than the distance between two adjacent cutting edges measured along the direction of the tangent plane to allow water flow through the razor head.

5. The razor head according to claim 1 , wherein each cutting member has an exposure greater than zero.

6. The razor head according to claim 1 , wherein the blade includes at least two parallel main surfaces and at least two tapered facets which taper towards the cutting edge forming an edge angle, and wherein the bisecting line of the edge angle is the cutting edge portion axis.

7. The razor head according to claim 1 , wherein each angle between the cutting edge axis and the tangent plane is the same.

8. A razor head comprising:
a housing having a top face defining a shaving window delimited by a front guard and a rear cap, together defining a tangent plane,
at least one rigid cutting member each movably mounted in a blade-receiving section of the housing, and having:
a cutting edge portion coupled with a holder portion, the cutting edge portion extending along a cutting edge portion axis, and having a cutting edge accessible through the shaving window,
a guided portion extending along a guided portion axis, and
a bent portion intermediate the cutting edge portion and the guided portion,

wherein each cutting member comprises a blade which defines the cutting edge portion, and a blade support, the blade support comprising the guided portion, the bent portion, and the holder portion,
wherein an angle measured between the cutting edge axis and the tangent plane is between 5° and 18°,
wherein the housing has a guide, wherein the cutting members are guided for movement in the guide from a nominal position achieved when not shaving, wherein the angle measured between the cutting edge axis and the tangent plane is measured in the nominal position.

9. The razor head according to claim 8 , wherein the bent portion is intermediate the holder portion and the guided portion.

10. The razor head according to claim 8 , wherein the blade is rigidly fixed to the holder portion of the blade support and the blade extends beyond the holder portion along the cutting edge portion axis.

11. The razor head according to claim 8 , wherein the cutting members are guided for movement in a direction perpendicular to the tangent plane.

12. The razor head according to claim 11 , wherein the guided portion of the cutting members cooperates with the guide so that each cutting member is independently translatable with respect to the housing along a sliding direction parallel to the guided portion axis, under the effect of shaving forces applied to the blade during shaving.

13. The razor head according to claim 8 , wherein the guided portion has a plane shape, the cantilever dimension, measured from the cutting edge to the plane of the guided portion along the direction of the tangent plane, is smaller than the distance between two adjacent cutting edges measured along the direction of the tangent plane to allow water flow through the razor head.

14. The razor head according to claim 8 , wherein each cutting member has an exposure greater than zero.

15. The razor head according to claim 8 , wherein the blade includes at least two parallel main surfaces and at least two tapered facets which taper towards the cutting edge forming an edge angle, and wherein the bisecting line of the edge angle is the cutting edge portion axis.

16. The razor head according to claim 8 , wherein each angle between the cutting edge axis and the tangent plane is the same.

Assignees

• Bic Violex Sa
• Bic Violex Sa

Inventors

• Bozikis Ioannis
• Karoussis Michalis

Classifications

• B26B21/227

  with blades being resiliently mounted in the changeable unit · CPC title

• B26B21/4012

  Housing details, e.g. for cartridges · CPC title

• Y10T225/10

  Methods · CPC title

• B26B21/565 Primary

  Bent razor blades; Razor blades with bent carriers · CPC title

• B26B21/4031

  characterised by special geometric shaving parameters, e.g. blade span or exposure · CPC title