Multiple headlamp adjuster linkage
A vehicle headlamp ( 10 ) has first and second lamp components ( 12, 14 ) mounted in a housing ( 16 ) having a wall ( 18 ). The first and second components ( 12, 14 ) are simultaneously adjustable from a double pivot rocker ( 20 ), the double pivot rocker ( 20 ) being mounted to the wall ( 18 ) by a stationary pivot bearing ( 21 ). The first and second lamp components ( 12, 14 ) each have a fixed pivot bearing ( 22, 24 ) fixed to the wall ( 18 ) and a floating pivot bearing ( 26, 28 ) fixed to the double pivot rocker ( 20 ). The first and second components ( 12, 14 ) can be reflectors positioned in a vertical array.
1. A vehicle headlamp comprising: first and second lamp components mounted in a housing having a wall, said first and second lamp components being simultaneously adjustable from a double pivot rocker, said double pivot rocker being mounted to said wall by a stationary pivot bearing; said first and second lamp components each having a fixed pivot bearing fixed to said wall and a floating pivot bearing fixed to said double pivot rocker;
wherein said stationary pivot bearing is situated between said floating pivot bearings such that when said double pivot rocker pivots, said floating pivot bearings move in generally opposite directions with respect to said stationary pivot bearing, thereby simultaneously adjusting a position of said first and second lamp components.
2. The vehicle headlamp of claim 1 wherein said first and second lamp components are positioned in a vertical array.
3. The vehicle headlamp of claim 1 wherein said double pivot rocker is substantially U-shaped and said stationary pivot bearing is located in a base member.
4. The vehicle headlamp of claim 1 wherein said double pivot rocker is displaced upon actuation of an adjusting mechanism.
5. The vehicle headlamp of claim 4 wherein said adjusting mechanism comprises a threaded member having a distal end projecting in a first direction and a proximal end projecting in an opposite direction, said proximal end being coupled to said double pivot rocker.
6. The vehicle headlamp of claim 5 wherein said proximal end comprises a spherical pivot that is positioned in a receptor in said double pivot rocker and operative to move said double pivot rocker from an initial position to an adjusted position.
7. The vehicle headlamp of claim 1 wherein said lamp components comprise reflectors.
8. The vehicle headlamp of claim 1 wherein displacement of said double pivot rocker by an amount (α) in a first direction causes displacement of each of said lamp components by said amount (α) in a second direction opposite said first direction.
9. The vehicle headlamp of claim 1 wherein a distance (A) from each said fixed pivot bearing to a location of coupling each said floating pivot bearing to said double pivot rocker is equal for said first and second lamp components.
10. The vehicle headlamp of claim 1 wherein in response to pivotable displacement of said double pivot rocker by an amount (α) about said stationary pivot bearing, each of said first and second lamp components displaces said amount (α) about its respective fixed pivot bearing.