US Patent 7862189 Adjustable mirror attachment

A mirror device for observing an infant in a rear-facing child safety car seat secured to the rear seat of a vehicle including a front seating area, a rear seating area, and a rear seat within the rear seating area, the rear seat having an upwardly-extending headrest. The mirror device includes a mirror and backing assembly having a rear surface, and an attachment connected to the rear surface for attaching the mirror device to the headrest. The attachment in turn includes a swivel device having a concavity element including a first bowl-like structure having a concave working surface; and a corresponding convexity element including a second bowl-like structure having a convex working surface configured to engage the concave working surface. The concavity and convexity elements are frictionally maintained in a desired adjusted position with reference to each other, while at the same time permitting manual adjustment.