Method of manufacturing a razor head component

Patent metadata

Field	Value
Publication number	US-10442096-B2
Application number	US-201614988915-A
Country	US
Kind code	B2
Filing date	Jan 6, 2016
Priority date	Apr 15, 2009
Publication date	Oct 15, 2019
Grant date	Oct 15, 2019

Abstract

A method of manufacturing a razor head component that includes the steps of providing a strip of material elongated along a first direction (X), the strip having first and second rounded extremities parallel with the first direction (X). The strip includes a first portion having a first extremity, a second portion having a second extremity, and an intermediate portion intermediate the first and second portions, bending the intermediate portion of at least a part of the strip about a bending axis, and fixing a razor blade onto the second portion of the part.

First claim

The invention claimed is:

1. A method comprising:
providing at least one elongated strip of material, the at least one elongated strip of material extending along a first direction, the first direction defining a length of the elongated strip, the at least one elongated strip of material including a first portion including a first extremity, a second portion including a second extremity, and an intermediate portion disposed between the first and second portions;
rounding the first extremity and the second extremity such that the rounding of the first extremity and the second extremity allows for the first extremity and the second extremity to be burr free;
bending the intermediate portion about a bending axis to form the at least one elongated strip of material into a blade support;
providing at least one razor blade; and
fixing the at least one razor blade onto the first portion of the blade support.

2. The method according to claim 1 , prior to the step of bending and further comprising the steps of:
forming a plurality of consecutive notches in the at least one elongated strip of material, the notches being formed in the first portion, transverse to the first direction.

3. The method according to claim 2 , further comprising:
prior to the step of bending and after the step of forming the plurality of consecutive notches, forming a separation portion in the second portion, the separation portion extending from a middle of a bottom of each of the plurality of consecutive notches towards the second extremity; and
after the step of bending, separating the blade support, wherein the step of separating includes breaking the blade support at the separation portion.

4. The method according to claim 2 , wherein the step of forming the plurality of consecutive notches involves spacing the plurality of consecutive notches along the at least one elongated strip of material, and extending each one of the plurality of consecutive notches from the first extremity toward the second extremity such that each one of the plurality of notches is disposed in both the first portion and the intermediate portion.

5. The method according to claim 4 , further comprising after the step of bending:
separating the blade support at each one of the plurality of consecutive notches.

6. The method according to claim 5 , wherein the step of separating is performed before the step of fixing, the step of separating involves separating the blade support to form a plurality of blade supports, the at least one razor blade being a plurality of razor blades, and
the step of fixing further comprises fixing each one of the plurality of razor blades onto the first portion of each one of the plurality of blade supports.

7. The method according to claim 1 , wherein the at least one elongated strip of material is a plurality of elongated strips of material and the at least one razor blade is a plurality of razor blades; and the method further comprising moving the plurality of elongated strips of material along a process path, and as each one of the plurality of elongated strips of material moves along the process path, repeating at least the steps of bending each one of the plurality of elongated strips of material to form a plurality of blade supports and fixing at least one of the plurality of razor blades to each one of the plurality of blade supports.

8. The method according to claim 7 , wherein the process path is defined at least from the step of bending to the step of fixing, after repeating the step of bending and prior to repeating the step of fixing, the method further comprising repeating the step of separating the blade support to form the plurality of blade supports.

9. The method according to claim 1 , wherein the bending axis extends parallel to the first direction.

10. The method according to claim 1 , wherein after the step of providing the at least one elongated strip of material and subsequent to the step of rounding the first and second extremities but prior to the step of bending, the method further comprises flattening the first, second and intermediate portion of the at least one elongated strip of material along a second direction perpendicular to the first direction, the flattening of the at least one elongated strip of material in the second direction further defining a thickness of the at least one elongated strip of material.

11. The method according to claim 10 , wherein after the step of flattening the at least one elongated strip of material along the second direction perpendicular to the first direction, and prior to the step of bending, the method further comprising flattening the strip of material along a third direction, perpendicular to the first and second directions, the third direction defining a height of the at least one elongated strip of material.

12. The method according to claim 1 , wherein the step of providing the at least one elongated strip of material includes obtaining a wire that has been previously flattened to form the at least one elongated strip of material; and the step of bending includes forming the flattened wire of the at least one elongated strip of material into the blade support.

13. The method according to claim 12 , wherein the flattened wire of the at least one elongated strip of material has a thickness of 0.22 and 0.32 mm, preferably between 0.265 and 0.295 mm.

14. The method according to claim 12 , wherein prior to the step of providing the at least one elongated strip of material, the flattened wire of the at least one elongated strip of material is formed by cold rolling.

15. The method according to claim 12 , wherein the flattened wire of the at least one elongated strip of material is flattened by cold rolling and prior to the step of providing the at least one elongated strip of material, the at least one elongated strip of material undergoes a second flattening process, along a second direction perpendicular to the first direction, the second direction defining a thickness of the at least one elongated strip of material, and the second flattening process thereby leading to the rounding step wherein the first and second extremities are rounded to be burr free.

Assignees

• Bic Violex Sa

Inventors

• Kemos George
• Pissimissis Dimitris

Classifications

• B26B21/4068 Primary

  Mounting devices; Manufacture of razors or cartridges (B26B21/528 takes precedence) · CPC title

• B21D53/645

  safety razor blades · CPC title

• B26B21/4075

  Mounting devices · CPC title

• B26B21/565

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

• B26B21/227

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