Shaving blade cartridge, a shaver comprising such shaving blade cartridge and a method of manufacturing such a shaving blade cartridge

Patent metadata

Field	Value
Publication number	US-10155321-B2
Application number	US-201415113834-A
Country	US
Kind code	B2
Filing date	Feb 27, 2014
Priority date	Feb 27, 2014
Publication date	Dec 18, 2018
Grant date	Dec 18, 2018

Abstract

A shaving blade cartridge includes a housing extending along a longitudinal axis having a top side, a bottom side opposite to the top side, and first and second longitudinal sides each extending longitudinally along the longitudinal axis between the top and bottom sides. A primary cutting blade is mounted on the housing between the first and second longitudinal sides, and has a cutting edge. A primary cap is located rearward of the cutting edge. A primary guard is located forward of the cutting edge. A trimming element, mounted on the housing, has a trimming edge. The trimming edge and the cutting edge are opposite one another. The primary cap is provided on a rear element, and the rear element is fitted on the housing. The trimming element is sandwiched between the housing and the primary cap.

First claim

The invention claimed is:

1. A method of manufacturing a shaving blade cartridge comprising:
providing a housing extending along a longitudinal axis having a top side, a bottom side opposite to the top side, and first and second longitudinal sides each extending longitudinally along the longitudinal axis between the top and bottom sides;
providing a primary guard;
assembling a primary guard to the housing;
providing a trimming element having a trimming edge facing a direction away from the primary guard;
placing the trimming element on the housing, the housing comprising protrusions configured to hold the trimming element;
providing a rear element;
fixing the trimming element on the housing by fitting the rear element on the housing; and
mounting a primary cutting blade on the housing between the first and second longitudinal sides, the primary cutting blade having a cutting edge, the primary guard being located forward of the cutting edge.

2. A method of manufacturing a shaving blade cartridge comprising:
providing a housing extending along a longitudinal axis having a top side, a bottom side opposite to the top side, and first and second longitudinal sides each extending longitudinally along the longitudinal axis between the top and bottom sides, the housing being provided with a primary guard;
providing a trimming element having a trimming edge facing a direction away from the primary guard;
placing the trimming element on the housing, the housing comprising protrusions configured to hold the trimming element;
providing a rear element;
fixing the trimming element on the housing by fitting the rear element on the housing; and
mounting a primary cutting blade on the housing between the first and second longitudinal sides, the primary cutting blade having a cutting edge, the primary guard being located forward of the cutting edge.

3. A shaving blade cartridge comprising:
a housing extending along a longitudinal axis having a top side, a bottom side opposite to the top side, and first and second longitudinal sides each extending longitudinally along the longitudinal axis between the top and bottom sides;
a primary cutting blade mounted on the housing between the first and second longitudinal sides, the primary cutting blade having a cutting edge;
a primary cap located rearward of the cutting edge;
a primary guard located forward of the cutting edge; and
a trimming element mounted on the housing, the trimming element having a trimming edge, the trimming edge facing a direction away from the primary guard,
wherein the primary cap is provided on a rear element, the rear element being fitted on the housing, and
wherein the trimming element is sandwiched between the housing and the primary cap.

4. The shaving blade cartridge according to claim 3 , wherein the primary cutting blade extends along the longitudinal axis.

5. The shaving blade cartridge according to claim 3 , wherein the trimming element extends along the longitudinal axis.

6. The shaving blade cartridge according to claim 3 ,
wherein the trimming element comprises a trimming blade support and a trimming blade, the trimming blade comprising the trimming edge, and the trimming blade being supported by the trimming blade support.

7. The shaving blade cartridge according to claim 6 ,
wherein the trimming edge extends in a trimming edge plane,
wherein the primary cutting blade extends in a cutting blade plane, and
wherein an angle provided between the cutting blade plane and the trimming edge plane is between approximately 120 degrees and approximately 150 degrees.

8. The shaving blade cartridge according to claim 7 , wherein the angle provided between the cutting blade plane and the trimming edge plane is approximately 125 degrees.

9. The shaving blade cartridge according to claim 3 , wherein the rear element is press-fitted on the housing.

10. The shaving blade cartridge according to claim 9 , wherein the housing comprises a recess located between the primary cutting blade and the first longitudinal side, wherein the rear element comprises a T-shape with a first arm extending in the recess and a second arm extending in the continuity of the top side of the housing.

11. The shaving blade cartridge according to claim 10 , wherein the first arm comprises a plurality of legs extending in a direction transversal to the direction of extension of the first arm, wherein the housing comprises a plurality of recesses located between the primary cutting blade and the first longitudinal side, and each leg of the first arm is press fitted in a recess of the housing.

12. The shaving blade cartridge according to claim 3 , wherein the rear element is snap-fitted on the housing.

13. The shaving blade cartridge according to claim 12 ,
wherein the housing comprises a recess located between the primary cutting blade and the first longitudinal side,
wherein the rear element is snap fitted in the recess,
wherein the rear element comprises a V-shape with a first arm and a second arm,
wherein the first arm extends in the recess, and
wherein the second arm extends in the continuity of the top side of the housing.

14. The shaving blade cartridge according to claim 13 , wherein the first arm comprises a hook, wherein the recess comprises a protrusion, and the hook cooperates with the protrusion.

15. The shaving blade cartridge according to claim 10 , wherein the second arm of the rear element fitted in the housing defines a slot with the housing, the trimming blade support extending in the slot.

16. The shaving blade cartridge according to claim 3 , further comprising two clips retaining the primary cutting blade on the housing.

17. The shaving blade cartridge according to claim 16 , wherein the trimming element is smaller in length than a distance between the two clips along the longitudinal axis.

18. A shaver comprising a handle and a shaving blade cartridge according to claim 3 , the shaving blade cartridge being connected to the handle.

Assignees

• Bic Violex Sa
• Bic Violex Sa

Inventors

• Bozikis Ioannis
• Georgakis Georgios
• Papageorgis Phaedon
• Efthimiadis Dimitrios
• Davos Vasileios
• Koulourias Georgios
• Polychronidis Petros

Classifications

• B26B21/4012

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

• B26B21/4031 Primary

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

• B26B21/4043

  Contour trimming · CPC title

• B26B21/227

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

• B26B21/4068

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