Razor cartridge guards
Razor cartridges are disclosed that include an elastomeric guard having a plurality of curved fins.
1. A device comprising:
a housing,
one or more blades disposed in the housing, the blades having edges that define a blade plane, and
an elastomeric guard member disposed on the housing and positioned to contact the skin prior to the blades, the guard member comprising a plurality of fins that are arcs of concentric circles, the fins extending upward from a planar top surface of a common base to a tip, and a linear elastomeric guard bar that extends upward from the planar top surface to a height that is lower than that of at least one of the plurality of fins
wherein the plurality of fins are in the form of elongated, thin flat members, each fin extends the major part of the length of the guard member, the plurality of fins comprise a first skin engaging fin ( 20 a ) having a top surface that is lower than the blade plane, and the height from base to tip of each fin increases with increasing proximity of the fins to the one or more blades, with at least one fin being higher than the blade plane.
2. The device of claim 1 , wherein the plurality of fins comprises at least three fins.
3. The device of claim 1 , wherein at least two of the fins have a length that is at least 19 mm.
4. The device of claim 1 , wherein distal ends of the fins are free to move.
5. The device of claim 1 , wherein the elastomeric guard bar is adjacent to the blades and higher than the blade plane.
6. The device of claim 5 , wherein the housing comprises a guard bar support positioned against the elastomeric guard bar.
7. The device of claim 6 , wherein the guard bar support is lower than the blade plane.
8. The device of claim 1 , wherein the fins are formed of an elastomer having a durometer of 20 to 80 Shore A.
9. The device of claim 1 , wherein the radii of curvature of the tips of the fins is from 0.025 to 1.12 mm.
10. The device of claim 1 , wherein the fins have arc lengths from 19.05 to 50.8 millimeters.
11. The device of claim 1 , wherein at least one of the fins has a length that is within 50 percent of a length of one of the other fins.
12. The device of claim 11 , wherein each of the fins has a length that is within 20 percent of a length of each other fin.
13. The device of claim 11 , wherein the width of the fins is from 19 to 63.5 mm.
14. The device of claim 1 , wherein each fin has a substantially uniform height along its length.