Razor with removably mounted pivotal cartridge

A razor assembly comprising a shaving unit and a handle, said shaving unit having platform means, blade means, first pivotal mounting means for pivotally connecting said shaving unit to said handle, and means for receiving a biasing force from said handle, said handle including two flexible arms which at one end have second pivotal mounting means complementary to said first pivotal mounting means, said flexible arms being secured to said handle in a region spaced from said second pivotal mounting means, a movable button engaging said flexible arms and movable for flexing said arms to disengage said second pivotal mounting means from said first pivotal means and for reverse movement which free said flexible arms for engagement of said second pivotal mounting means with said first pivotal mounting means, means for exerting a biasing force on said means for receiving a biasing force, said button having ramp means which are movable relative to the surface of each flexible arm which engages said button, such relative movements of said ramp means flexing said arms, said ramp means joining a first uninclined portion to a second uninclined portion, both the first and second uninclined portions being parallel to one another and the spacing between the second uninclined portion being greater than the spacing between the first uninclined portion.