Rotary recliner
View Patent ↗A rotary recliner includes an outer rotary member having a first series of gear teeth on an inner circumferential surface thereof and an inner rotary member having a second series of gear teeth on an outer surface thereof. An eccentric is mounted to the inner rotary member and biases the second gear teeth into meshed engagement with the first gear teeth at a first position along the inner circumferential surface such that a clearance is created between the first gear teeth and the second gear teeth at a position on the inner rotary member opposite from the first position. A wedge carrier includes a pair of wedges extending from a body. The wedges are joined by a bridge portion with each wedge including a ramped surface that engages and applies a radial force on the eccentric to prevent relative movement between the inner and outer rotary members.
1. A rotary recliner comprising:
an outer rotary member having a first series of gear teeth on an inner circumferential surface thereof;
an inner rotary member having a second series of gear teeth on an outer surface thereof;
an eccentric mounted to said inner rotary member and operable to bias said second gear teeth into meshed engagement with said first gear teeth at a first position along said inner circumferential surface such that a clearance is created between said first gear teeth and said second gear teeth at a position on said inner rotary member opposite from said first position; and
a wedge carrier having a body and a first pair of wedges extending from said body, said first pair of wedges joined by a bridge portion extending from said body the same distance as said first pair of wedges with each wedge including a ramped surface operable to engage and apply a radial force on said eccentric to prevent relative movement between said outer rotary member and said inner rotary member.
2. The rotary recliner of claim 1 , wherein said eccentric includes a C-shape.
3. The rotary recliner of claim 1 , wherein said eccentric includes an opening formed in a side wall of said eccentric.
4. The rotary recliner of claim 3 , further comprising a second pair of wedges extending from said body of said wedge carrier.
5. The rotary recliner of claim 4 , wherein said second pair of wedges are received within said opening formed in said sidewall of said eccentric.
6. The rotary recliner of claim 1 , further comprising a second pair of wedges extending from said body of said wedge carrier.
7. The rotary recliner of claim 6 , further comprising a second bridge portion extending between said second pair of wedges.
8. The rotary recliner of claim 6 , wherein said second pair of wedges are disposed on an opposite side of said wedge carrier from said first pair of wedges.