Shaving assemblies are disclosed that include a blade unit, an interface element configured to connect the blade unit to a handle, on which the blade unit is pivotably mounted, and an return element disposed between the blade unit and interface element. The return element serves as interface piece,
Shaving assemblies are disclosed that include a blade unit, an interface element configured to connect the blade unit to a handle, on which the blade unit is pivotably mounted, and an return element disposed between the blade unit and interface element. The return element serves as interface piece, connector and pivot all in one. Shaving systems including such shaving assemblies are also disclosed, as are methods of using such shaving systems.
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1. A replaceable shaving assembly comprising: a blade unit; andan interface element, configured to removeably connect the blade unit to a handle,the interface element comprising (a) a handle interface portion, having a body configured to receive a distal end of the handle and a first pair of spaced
1. A replaceable shaving assembly comprising: a blade unit; andan interface element, configured to removeably connect the blade unit to a handle,the interface element comprising (a) a handle interface portion, having a body configured to receive a distal end of the handle and a first pair of spaced apart rigid protrusions extending from the body, (b) a blade unit interface portion, including a pair of arms extending to distal ends on which the blade unit is pivotably mounted, and a second pair of spaced apart rigid protrusions on which the arms are mounted,wherein ends of the first and second pairs of rigid protrusions are positioned facing each other in opposed spaced relation, and the interface element further comprises (c) a pair of flexible elastomeric return elements, each return element being molded over the opposed ends of the rigid protrusions, joining the opposed ends and thus flexibly joining the handle interface portion to the blade unit interface portion. 2. The shaving assembly of claim 1 wherein longitudinal axes of the return elements extend in a direction generally perpendicular to a longitudinal axis of the blade unit. 3. The shaving assembly of claim 1, wherein the return elements are configured to bias the blade unit towards a rest position with respect to a pivot axis that is generally parallel to the longitudinal axis of the blade unit. 4. The shaving assembly of claim 1, wherein the return elements are pretensioned such that the return elements exert a force on the blade unit at rest of at least 5 grams. 5. The shaving assembly of claim 1, wherein the return elements comprise a thermoplastic elastomer or thermoplastic urethane. 6. The shaving assembly of claim 1 wherein the body of the handle interface portion includes an elongated recess configured to receive the distal end of the handle. 7. The shaving assembly of claim 6 wherein a longitudinal axis of the recess is generally perpendicular to longitudinal axes of the first pair of rigid protrusions. 8. The shaving assembly of claim 1 wherein the first and second pairs of rigid protrusions include broad surfaces that all lie in the same plane. 9. A shaving system comprising: a handle having a distal end and a proximal end; anda shaving assembly, mounted on the distal end of the handle, the shaving assembly including an interface element configured to connect the blade unit to the handle, and a blade unit,the interface element comprising (a) a handle interface portion, having a body configured to receive a distal end of the handle and a first pair of spaced apart rigid protrusions extending from the body, (b) a blade unit interface portion, including a pair of arms extending to distal ends on which the blade unit is pivotably mounted, and a second pair of spaced apart rigid protrusions on which the arms are mounted,wherein ends of the first and second pairs of rigid protrusions are positioned facing each other in opposed spaced relation, and the interface element further comprises (c) a pair of flexible elastomeric return elements, each return element being molded over the opposed ends of the rigid protrusions, joining the opposed ends and thus flexibly joining the handle interface portion to the blade unit interface portion. 10. The shaving system of claim 9 wherein longitudinal axes of the return elements extend in a direction generally perpendicular to a longitudinal axis of the blade unit. 11. The shaving system of claim 9, wherein the return elements are configured to bias the blade unit towards a rest position with respect to a pivot axis that is generally parallel to the longitudinal axis of the blade unit. 12. The shaving system of claim 9, wherein the return elements are pretensioned such that the return elements exert a force on the blade unit at rest of at least 5 grams. 13. The shaving system of claim 9, wherein the return elements comprise a thermoplastic elastomer or thermoplastic urethane. 14. A method of shaving comprising contacting the skin with the blade unit of a shaving system comprising a handle having a distal end and a proximal end, and a replaceable shaving assembly that includes a blade unit, and an interface element configured to connect the blade unit to a handle, the interface element comprising (a) a handle interface portion, having a body configured to receive a distal end of the handle and a first pair of spaced apart rigid protrusions extending from the body, (b) a blade unit interface portion, including a pair of arms extending to distal ends on which the blade unit is pivotably mounted, and a second pair of spaced apart rigid protrusions on which the arms are mounted, wherein ends of the first and second pairs of rigid protrusions are positioned facing each other in opposed spaced relation, and the interface element further comprises (c) a pair of flexible elastomeric return elements, each return element being molded over the opposed ends of the rigid protrusions, joining the opposed ends and thus flexibly joining the handle interface portion to the blade unit interface portion.
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