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Title: US5402730: Platen drive unit
[ Derwent Title ]


Country: US United States of America

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13 pages

 
Inventor: Salter, Kenneth D.; Los Angeles, CA
Armstrong, Daniel A.; Simi Valley, CA

Assignee: The Walt Disney Company, Burbank, CA
other patents from WALT DISNEY COMPANY (617665) (approx. 101)
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Published / Filed: 1995-04-04 / 1993-08-11

Application Number: US1993000105845

IPC Code: Advanced: B61B 13/12;
IPC-7: B61B 13/00;

ECLA Code: B61B13/12D;

U.S. Class: Current: 104/168; 104/165;
Original: 104/168; 104/165;

Field of Search: 104/165,163,168,170 198/722,782

Priority Number:
1993-08-11  US1993000105845

Abstract:     The preferred embodiment is a platen drive unit that propels the platens of vehicles moving along a track. The platen drive unit may be readily used at any portion of the track, since it acts as a castor about a kingpin assembly, thereby substantially reducing the effects of roller scrub in curved track portions. A self energizing structure balances a dual-pivot arrangement of frames, such that the drive roller of the unit is balanced to intersect the conveyance plane without imposing a "bump" or lurch upon a vehicle that first engages the drive roller. Additionally, the drive roller is preferably a dual-rate tire which features a compliant range, within which the tire is readily deformed, but which continues to drive the platen with a large normal force. Beyond the compliant range, the tire is not compliant to deformation. The dual-rate tire may be created by constricting the circumference and filling the deformed tire with a urethane filler, which is allowed to cure. The constricting influence is removed, and the tire tread punctured to allow air to fill an ullage between the filler and the tread, creating the compliant region.

Attorney, Agent or Firm: Pretty, Schroeder, Brueggemann & Clark ;

Primary / Asst. Examiners: Le, Mark T.;

INPADOC Legal Status: Show legal status actions

Family: None

First Claim:
Show all 20 claims
We claim:     1. A platen drive unit adapted to propel a platen of a vehicle along a conveyance plane, to thereby provide impetus to the vehicle for movement along a track, said platen drive unit mounted with respect to the track and comprising:
  • a drive roller adapted to contact the platen and provide the impetus to the platen, said drive roller intersecting the conveyance plane and having a rotational axis that is substantially parallel to the conveyance plane;
  • a swivel mounting that pivotally mounts said drive roller about a vertical axis that is substantially normal to said conveyance plane, thereby permitting the pivot of said rotational axis about said vertical pivot axis; and
  • a motor operatively coupled to said drive roller to provide rotational impetus thereto.


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Description: Show description

Forward References: Show 4 U.S. patent(s) that reference this one

       
U.S. References: Go to Result Set: All U.S. references   |  Forward references (4)   |   Backward references (11)   |   Citation Link

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Patent  Pub.Date  Inventor Assignee   Title
Get PDF - 11pp US1388508* 1921-08 Brilhart    
Get PDF - 4pp US1656301* 1928-01 Stevens    
Get PDF - 4pp US3039402* 1962-06 Richardson    
Get PDF - 19pp US3249065* 1966-05 Adams    
Get PDF - 12pp US3412690  1968-11 Broggie et al.   PASSENGER MOVING APPARATUS
Get PDF - 5pp US3530800  1967-12 Watkins   SELF-ENERGIZING PROPULSION UNIT FOR DRIVING A VEHICLE
Get PDF - 4pp US3559335  1971-02 See   TOY VEHICLE ACCELERATION MECHANISM
Get PDF - 14pp US3848535  1974-11 Mitchell   RAPID TRANSIT SYSTEM
Get PDF - 8pp US3880088  1975-04 Grant  The Goodyear Tire & Rubber Company Vehicle control system and method
Get PDF - 6pp US4361094  1982-11 Schwarzkopf  Firma Anton Schwarzkopf Stahl- und Fahrzeugbau Drive member for rail-type amusement-ride car
Get PDF - 22pp US5067413  1991-11 Kiuchi et al.  Daifuku Co., Ltd. Apparatus for conveying travelable body
  * some details unavailable
       
Foreign References:
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Publication Date IPC Code Assignee   Title
Get PDF - 9pp EP0249839 1987-12  B61B 12/02 HABEGGER AG VON ROLL Cableway transport installation, especially a funicular trackway 
  FR1370670 1964-07       
  DE1405537 1969-01       
  DE0252167 1987-12  B61B 13/04    


Other Abstract Info: DERABS G95-146333 DERG95-146333

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