Razor Cartridge With Improved Guard
A razor cartridge has a housing having a guard and a cap and a plurality of parallel blades supported by the housing between the guard and the cap, each blade having a respective cutting edge. The guard includes a first and a second group of rows of elongated, elastomeric fins, each group being arranged generally parallel to the cutting edges and positioned to engage a user's skin, the second group being closer to the blades than the first group. The tips of the fins of the first group define a surface and an extension of the surface intersects the outer surface of the outermost fin of the second group to define a step between this intersection and a plane parallel to a plane through the cutting edges and tangential to the tip of outermost fin in a direction away from the guard.
1 . A razor cartridge comprising:
a housing having a guard and a cap; and
a plurality of parallel blades supported by the housing between the guard and the cap, each having a respective cutting edge and defining a plane through the cutting edges;
wherein the guard includes a first and a second group of rows of elongated, elastomeric fins, each group being arranged generally parallel to the cutting edges and positioned to engage a user's skin, the second group being closer to the blades than the first group;
wherein tips of the fins of the first group define a surface tangential to the tips and an extension of the surface intersects an outer surface of an outermost fin of the second group of fins to define a step between the intersection and a plane tangential to an apex of the outermost fin of the second group of fins and parallel to the plane through the cutting edges in a direction away from the guard.
2 . The razor cartridge of claim 1 , wherein the tips of the first group of fins have an increasing elevation with respect to the plane through the cutting edges.
3 . The razor cartridge of claim 1 , wherein the tips of the second group of fins have one of a uniform elevation and a decreasing elevation with respect to the plane through the cutting edges.
4 . The razor cartridge of claim 1 , wherein the tips of the first group of fins are all below the plane through the cutting edges.
5 . The razor cartridge of claim 1 , wherein the surface tangential to the tips of the fins of the first group is one of planar and defines a gentle curve.
6 . The razor cartridge of claim 1 , wherein the tips of the second group of fins are all above the plane through the cutting edges.
7 . The razor cartridge of claim 1 , wherein the fins of the second group of fins are arranged parallel to the cutting edges.
8 . The razor cartridge of claim 1 , wherein the fins of the first group of fins are arranged parallel to the cutting edges.
9 . The razor cartridge of claim 1 , wherein the fins of the first group of fins are arranged at an acute angle to the cutting edges.
10 . The razor cartridge of claim 1 , wherein the first group of fins extends from a first substrate and the second group of fins extends from a second substrate.
11 . The razor cartridge of claim 10 , wherein the first substrate and the second substrate are integrally formed.
12 . The razor cartridge of claim 1 , wherein the step is at least 0.3 mm high.
13 . The razor cartridge of claim 1 , wherein the first group of fins comprises a first material and the second group of fins comprises a second material and the first material is different to the second material.
14 . The razor cartridge of claim 13 , wherein the first material has a lower hardness defined on a Shore A scale than the second material.