Razor cartridge
A razor cartridge is proposed. The razor cartridge may include at least one shaving blade comprising an edge portion with a cutting edge, and a base portion, and a blade housing configured to accommodate the at least one shaving blade. The razor cartridge may also include an elastic unit configured to support an end portion of the base portion of the at least one shaving blade and apply a restoring force upwards. The razor cartridge can uniformly transmit a restoring force to a plurality of blades supported by the elastic unit. Further, the vertical position of the shaving blade may be adjustable, thereby reducing a skin irritation during shaving.
1 . A razor cartridge comprising:
at least one shaving blade comprising an edge portion with a cutting edge, and a base portion;
a blade housing configured to accommodate the at least one shaving blade within an inner space extending longitudinally and transversely within the blade housing, the blade housing comprising at least one blade mounting portion disposed entirely within the inner space of the blade housing; and
an elastic unit configured to support a bottom end of the base portion of the at least one shaving blade, the elastic unit disposed entirely within the inner space of the blade housing and comprising:
at least one connecting portion disposed entirely within the inner space of the blade housing and having a first side extending longitudinally away from the blade mounting portion of the blade housing in a first direction, and
a supporting portion disposed entirely within the inner space of the blade housing, the supporting portion extending longitudinally away from a second side of the at least one connecting portion in the first direction and extending transversely in a second direction crossing the first direction, and
wherein the at least one shaving blade comprises two or more shaving blades, and the supporting portion supports and is in direct physical contact with at least two blade base portions of the two or more shaving blades.
2 . The razor cartridge of claim 1 , wherein the at least one shaving blade is adjustable in vertical position inside the blade housing by at least one of an external force acting thereon downwards or the restoring force of the elastic unit.
3 . The razor cartridge of claim 2 , wherein the elastic unit is configured to return the at least one shaving blade to a rest position in response to removing the external force acting on the at least one shaving blade.
4 . The razor cartridge of claim 1 , wherein the supporting portion comprises at least one recess or protrusion formed in a transverse direction.
5 . The razor cartridge of claim 1 , wherein:
the blade housing comprises a guard provided in front of the at least one shaving blade in a transverse direction, and a cap provided in back of the at least one shaving blade in the transverse direction,
the guard and the cap define a virtual shaving plane, and
the at least one shaving blade has positive exposure with respect to the virtual shaving plane in response to no external force acting on the cutting edge.
6 . The razor cartridge of claim 1 , wherein the supporting portion comprises a stepped portion thereon to support the at least one shaving blade at different heights.
7 . The razor cartridge of claim 1 , wherein the elastic unit comprises at least one rinsing hole.
8 . The razor cartridge of claim 1 , wherein:
a lowest vertical position of the at least one shaving blade is restricted by at least a portion of a top of the at least one blade mounting portion.
9 . The razor cartridge of claim 1 , wherein:
the at least one connecting portion comprises opposite ends connecting the supporting portion and the at least one blade mounting portion.
10 . The razor cartridge of claim 9 , wherein:
the at least one blade mounting portion comprises a plurality of mounting protrusions in which the base portion of the at least one shaving blade is mounted, and
a distance between adjacent connecting portions of the at least one connecting portion is greater than or equal to a distance between the mounting protrusions adjacent to each other.
11 . The razor cartridge of claim 10 , wherein the at least one blade mounting portion comprises:
a pair of side mounting portions configured to support longitudinal opposite ends of the at least one shaving blade; and
at least one of middle mounting portion configured to support a longitudinal middle portion of the at least one shaving blade, and
wherein the at least one elastic unit is longitudinally connected to at least one of the side mounting portion or the middle mounting portion.
12 . The razor cartridge of claim 1 , wherein longitudinal opposite sides of the supporting portion are connected to the at least one connecting portion.
13 . The razor cartridge of claim 12 , wherein the longitudinal opposite sides of the supporting portion are different in the number of connecting portions of the at least one connecting portion connected thereto.
14 . The razor cartridge of claim 1 , wherein:
the elastic unit comprises a plurality of elastic units,
at least two elastic units among the plurality of elastic units are provided in the transverse direction respectively and
the transversely provided elastic units are configured to support different shaving blades of the at least one shaving blade, respectively.
15 . The razor cartridge of claim 1 , wherein the at least one connection portion comprises two connecting portions spaced apart from each other, wherein each of the two connecting portions extends longitudinally away from the at least one blade mounting portion of the blade housing and is coupled to the supporting portion, and wherein the two connection portions and the supporting portion form a c-shaped member, and wherein the c-shaped member is configured to bend upwardly and downwardly.
16 . The razor cartridge of claim 1 , wherein transverse end portions of the supporting portion and transverse end portions of the at least one connecting portion are spaced apart from an inner wall of the blade housing.
17 . The razor cartridge of claim 1 , wherein the at least one connecting portion is elastic and is configured to bend within the inner space relative to the blade mounting portion.
18 . The razor cartridge of claim 1 , wherein the at least one connecting portion and the supporting portion are elastic, and wherein the at least one connecting portion and the supporting portion are configured to bend within the inner space relative to the blade mounting portion.