Coaster and trolley system and method
A rail coaster operates as a cross between a roller coaster and a zip line. A rail may be suspended under a frame by flexible cables or solid brackets. The rail may turn, incline, decline, or twist, but need not twist to still provide a “rolling” degree of freedom for a rider. An eddy current brake provides proportional braking as a function of speed. A cam-adjustment-axle (eccentric) carries certain wheels to provide finely divided, discrete, but incrementally small adjustments of idler wheel clearances to accommodate variations in the rail, wheel wear, and onsite adjustment of tolerances for curvature, unevenness, and friction. A “static universal” bracket provides adjustment in four degrees of freedom, three of translation and one of rotation in securing a rail to a supporting frame.
1. A method comprising:
providing a course track defining a longitudinal direction, lateral direction, and transverse direction mutually orthogonal to one another at any point along the course track;
providing a ride trolley fitted to ride on the course track;
providing a lift track;
providing a lift trolley, drive motor, and connection strand;
mounting the ride trolley onto the course track;
mounting the lift trolley on the lift track;
engaging the ride trolley by the lift trolley to move both under the influence of the drive motor on the lift trolley through the connection strand;
suspending a rider from the ride trolley;
moving the rider through lateral, transverse, and longitudinal translation with the course track and in roll outside the path of the course track about a longitudinal axis; and
braking the trolley by eddy current braking.
2. The method of claim 1 , further comprising providing a magnet secured fixedly to one of the ride trolley and the course track and a current plate spaced away from the magnet on the other of the course track and the trolley.
3. The method of claim 2 , further comprising adjusting the eddy current braking by adjusting a clearance between the current plate and the magnet.
4. The method of claim 3 , further comprising varying the clearance in a lateral direction with distance along the current plate in a longitudinal direction.
5. The method of claim 4 , further comprising dynamically varying the clearance based on speed of a trolley approaching engagement of the magnet with the current plate.
6. The method of claim 5 , further comprising providing control of the clearance empirically based on a weight of the trolley against the rail when loaded with a rider.
7. The method of claim 1 , further comprising providing a static universal between the rail and a mounting location adjustable in four degrees of freedom.
8. The method of claim 7 , wherein the four degrees of freedom include three degrees of freedom in translation and one of rotation.
9. The method of claim 8 , wherein the three degrees of freedom in translation are mutually orthogonal.
10. The method of claim 9 , wherein two of the degrees of freedom in translation are provided by apertures elongated orthogonally with respect to one another, and the third degree of freedom is adjusted by a fastener through the apertures.
11. The method of claim 1 , further comprising damping to control a rate of rotation of a rider in harness with respect to the trolley.
12. A method comprising:
providing a course track defining a longitudinal direction, lateral direction, and transverse direction mutually orthogonal to one another at any point along the course track;
providing a ride trolley fitted to ride on the course track;
providing a lift track;
providing a lift trolley, drive motor, and connection strand;
mounting the ride trolley onto the course track;
mounting the lift trolley on the lift track;
engaging the ride trolley by the lift trolley to move both under the influence of the drive motor on the lift trolley through the connection strand;
suspending a rider from the ride trolley;
moving the rider through lateral, transverse, and longitudinal translation with the course track and in roll outside the path of the course track about a longitudinal axis; and
braking the trolley by an eddy current braking system, wherein the eddy current braking system comprises a magnet and a current plate interacting between the ride trolley and the track, a clearance between the magnet and current plate being dynamically adjustable based upon characteristics of the rider moving along the track under the trolley approaching the current plate.
13. The method of claim 12 , further comprising providing a static universal between the rail and a mounting location adjustable in four degrees of freedom.
14. The method of claim 13 , wherein the four degrees of freedom include three degrees of freedom in translation and one of rotation.
15. The method of claim 14 , wherein the three degrees of freedom in translation are mutually orthogonal.
16. The method of claim 15 , wherein two of the degrees of freedom in translation are provided by apertures elongated orthogonally with respect to one another, and the third degree of freedom is adjusted by a fastener through the apertures.
17. A method comprising:
providing a course track defining a longitudinal direction, lateral direction, and transverse direction mutually orthogonal to one another at any point along the course track;
providing a ride trolley fitted to ride on the course track;
providing a lift track;
providing a lift trolley, drive motor, and connection strand;
providing a static universal between the rail and a mounting location adjustable in four degrees of freedom;
mounting the ride trolley onto the course track;
mounting the lift trolley on the lift track;
engaging the ride trolley by the lift trolley to move both under the influence of the drive motor on the lift trolley through the connection strand;
suspending a rider from the ride trolley;
moving the rider through lateral, transverse, and longitudinal translation with the course track and in roll outside the path of the course track about a longitudinal axis; and
braking the trolley by an eddy current braking system, wherein the eddy current braking system comprises a magnet and a current plate interacting between the ride trolley and the track, a clearance between the magnet and current plate being dynamically adjustable based upon characteristics of the rider moving along the track under the trolley approaching the current plate.
18. The method of claim 17 , wherein the four degrees of freedom with the static universal include three degrees of freedom in translation and one of rotation and two of the degrees of freedom in translation are provided by apertures elongated orthogonally with respect to one another, and the third degree of freedom is adjusted by a fastener through the apertures.
19. The method of claim 17 , further comprising damping to control a rate of rotation of the rider in harness with respect to the trolley.