MAGNETIC ATTACHMENT FOR SHAVING CARTRIDGE
Shaving systems are disclosed that include a replaceable shaving assembly and a cartridge connecting structure for connecting the shaving assembly to a handle. In preferred implementations, the cartridge connecting structure has a magnetic portion configured to help draw the cartridge onto the handle and retain the cartridge in place when the razor is not in contact with the skin, and a mechanical engagement that provides the necessary retention forces required to keep the system intact during shaving.
1 . A handle for a shaving system, the handle comprising:
an elongate handle body having a distal end and a proximal end,
an appendage protruding from the distal end, and
a magnetic portion comprising at least one permanent magnet disposed in a recess at a distal end of the appendage.
2 . The handle of claim 1 wherein the appendage is disposed so that a long axis of the appendage is at an angle of +30 degrees to −30 degrees with respect to a crossbar center of the handle, and the handle further includes a generally planar rim surface surrounding the appendage.
3 . The handle of claim 2 wherein the rim surface on the handle is disposed at an angle of about 10 to 20 degrees with respect to a longitudinal axis of inertia of the handle.
4 . The handle of claim 1 wherein the appendage is in the form of a cuboid having radiused edges.
5 . The handle of claim 1 wherein the permanent magnet is centered along a length of the appendage.
6 . The handle of claim 1 wherein the distal end of the handle includes a yoke having a pair of arms and a central portion bridging the arms, the central portion having a length, and the appendage extends outwardly from the central portion along the length thereof.
7 . A shaving system, the shaving system comprising:
a handle, the handle including an elongate handle body having a distal end and a proximal end, an appendage protruding from the distal end, and a magnetic portion comprising at least one permanent magnet disposed in a recess at a distal end of the appendage; and
a shaving assembly comprising a ferrous portion configured to magnetically engage with the permanent magnet.
8 . The shaving system of claim 7 wherein the shaving assembly includes a cartridge and an interface element on which the cartridge is pivotably mounted.
9 . The shaving system of claim 8 wherein the ferrous portion is disposed on the interface element.
10 . The shaving system of claim 7 wherein the appendage is disposed so that a long axis of the appendage is at an angle of +30 degrees to −30 degrees with respect to a crossbar center of the handle, and the handle further includes a generally planar rim surface surrounding the appendage.
11 . The shaving system of claim 10 wherein the rim surface on the handle is disposed at an angle of about 10 to 20 degrees with respect to a longitudinal axis of inertia of the handle.
12 . The shaving system of claim 7 wherein the appendage is in the form of a cuboid having radiused edges.
13 . The shaving system of claim 7 wherein the permanent magnet is centered along the length of the appendage.
14 . The shaving system of claim 7 wherein the distal end of the handle includes a yoke having a pair of arms and a central portion bridging the arms, the central portion having a length, and the appendage extends outwardly from the central portion along the length thereof.
15 . The shaving system of claim 9 wherein the interface element includes a cavity and the appendage is configured to fit within the cavity.
16 . The shaving system of claim 15 wherein the permanent magnet and the ferrous portion are in face-to-face arrangement when the appendage is disposed within the cavity.
17 . The shaving system of claim 16 wherein the interface element includes one or more tab(s) to facilitate removal of the shaving assembly from the handle.
18 . The shaving system of claim 15 wherein the ferrous portion is in the form of a strip of ferrous material disposed within the cavity.