Cam activated extendable cupholder

1. A vehicle cupholder comprising:

a generally planar support member pivotable about an axis including a first curved wall on a respective first edge of said support member for receiving a container when in an open position, said support member being pivotable between said open position and a stowed position;

a first retaining arm pivotally mounted to said support member at an end of said first curved wall for retaining said container, said first retainer arm being pivotable in a plane parallel to the plane of said support member between an extended position and a retracted position;

a hinge for coupling said support member to a fixed support, said support member being pivotable about said hinge;

a first mounting bracket, said first mounting bracket includes a curved cam-shaped outer perimeter surface in contact with an end surface of said first retaining arm, said end surface being slideable along said cam-shaped outer perimeter surface between said extended position and said retracted position as said support member is pivoted about said hinge between said open position and said stowed position; and

wherein said cam-shaped outer perimeter surface engages said end surface as said support member is pivoted from said open position to said stowed position whereby said first retaining arm pivots from said extended position to said retracted position and said cam-shaped outer perimeter maintains said retracted position of said first retaining arm.

2. The vehicle cupholder of claim 1 further comprising: a second curved wall on a respective second edge of said support member for receiving a second container when in said open position;

a second retaining arm pivotally mounted to an end of said second curved wall for retaining said second container, said second retaining arm being pivotable about said hinge between an extended position and a retracted position; and

a second mounting bracket, said second mounting bracket includes a cam-shaped outer perimeter surface in contact with an end surface of said second retaining arm, wherein said end surface of said second retaining arm being slideable along said cam-shaped outer perimeter surface of said second mounting bracket between said extended position and said retracted position as said support member is pivoted about said second pivot member between said open position and said stowed position; and

wherein said cam-shaped outer perimeter surface engages said end surface of said second retaining arm as said support member is pivoted from said open position to said stowed position whereby said second retaining arm pivots from said extended position to said retracted position and said cam-shaped outer perimeter maintains said retracted position of said second retaining arm.

3. The vehicle cupholder of claim 2 further comprising at least one spring for biasing said first and second retaining arms laterally outward into said extended position as said support member is pivoted from said stowed position to said open position.

4. The vehicle cupholder of claim 2 wherein said at least one spring includes a torsion spring.

5. The vehicle cupholder of claim 1 wherein said first and second shaped mounting bracket is attached to a console unit.

6. The vehicle cupholder of claim 1 wherein said first and second mounting bracket is integral to a console unit.

7. The vehicle cupholder of claim 1 wherein said hinge is integrated in said first and second mounting bracket.

8. The vehicle cupholder of claim 7 wherein said hinge includes a common pivot member for pivoting said support member, said common pivot member having a first end and a second end, wherein said common pivot member is pivotably attached to said first mounting bracket at said first end of said common pivot member and pivotably attached to said second mounting bracket at said second end of said common pivot member.

9. The vehicle cupholder of claim 7 wherein said hinge includes a first pivot member pivotably attached to said first mounting bracket and a second pivot member pivotably attached to said second mounting bracket for pivoting said support member.

10. A vehicle cupholder assembly comprising:

a housing console located within a console unit;

a generally planar support member including a first curved wall on a respective first edge of said support member and a second curved wall on a respective second edge of said support member for receiving a container when in a open position, said support member being pivotable between said open position and a stowed position, said stowed position is positioned with said housing console;

a first retaining arm pivotally mounted to a support member at an end of said first curved wall for retaining said container, a second retaining arm pivotally mounted to said support member at an end surface of said second curved wall for retaining said container, said first retaining arm and said second retaining arm being pivotable in a plane parallel to the plane of said support member between an extended position and a retracted position;

a first mounting bracket, said first mounting bracket includes a curved cam-shaped outer perimeter surface in contact with said end of said first retaining arm, said end surface being slideable along said cam-shaped outer perimeter surface between said extended position and said retracted position as said support member is pivoted about said hinge between said open position and said stowed position;

a second mounting bracket, said second mounting bracket includes a curved cam-shaped outer perimeter surface in contact with an end surface of said second retaining arm, wherein said end surface of said second retaining arm being slideable along said cam-shaped outer perimeter surface of said second mounting bracket between said extended position and said retracted position as said support member is pivoted about said second pivot member between said open position and said stowed position;

said housing console suitable for receiving said support member and said first and second retaining arm when in said stowed position; and

wherein said cam-shaped outer perimeter surface of said first and second mounting bracket each engage said end surface of said first and second retaining arm as said support member is pivoted from said open position to said stowed position whereby said first and second retaining arm pivot from said extended position to said retracted position and said cam-shaped outer perimeter maintains said retracted position of said first and second retaining arms.

11. The vehicle cupholder of claim 1 wherein an upper surface of said cam-shaped outer perimeter maintains said retracted position of said retaining arm.

12. The vehicle cupholder assembly of claim 10 wherein an upper surface of said cam-shaped outer perimeter maintains said retracted position of said first and second retaining arms.

13. The vehicle cupholder of claim 1 wherein an imaginary line extending from said hinge to a perpendicular intersection with said mounting bracket forms a radial point, a radius from said radial point to said cam-shaped outer perimeter increases as said cam-shaped outer perimeter is extended upward and away from the radial point.

14. The vehicle cupholder of claim 10 wherein an imaginary line extending from said hinge to a perpendicular intersection with said mounting bracket forms a radial point, a radius from said radial point to said cam-shaped outer perimeter increases as said cam-shaped outer perimeter is extended upward and away from the radial point.

15. The vehicle cupholder of claim 1 further comprising at least one spring for biasing said first retaining arm laterally outward into said extended position as said support member is pivoted from said stowed position to said open position.