Railways – Elevated structure
Patent
1985-07-15
1987-09-29
Reese, Randolph A.
Railways
Elevated structure
104118, 104281, 104282, 104290, E01B 2508, B60L 1304
Patent
active
046962352
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to a steel roadway for magnetic tracks including a roadway support, which includes a cover plate forming a top flange, which is connected at its lower side along its two longitudinal edges with a side guiderail, and at a spacing parallel thereto with, respectively, a flange-shaped longitudinal support for the receipt of stator components or the like, as well as being connected with flange-shaped lateral supports extending at right angles therewith.
About the year 1970 there started the development and investigation of magnetic track systems which distinguish themselves through the attainment of higher speeds, lower energy consumption and compatibility with the environment. The particular characteristic of such magnetic track systems resides in the non-contacting support and guidance of the vehicle over the track, which, as a rule, is effected electromagnetically, in special instances also implemented with permanent magnets. Moreover, the propulsion as well as the braking of the vehicle during its operative condition is also effected in a non-contacting manner relative to the tracks through the employment of closed-circuit stator or axial stator linear drive motors. Inasmuch as the vehicles of these new traffic systems impose completely different demands upon the roadways, in parallel with the development of the vehicles there were designed and constructed special roadways, which were preferably conceptualized in either elevated or subterranean constructional modes.
Hereby, in addition to roadway supports which are constructed from prestressed concrete, the employment of, in particular, steel roadway supports has gained ground, inasmuch as in these latter constructions, the connection for the operational components which, as a rule, are also constructed from steel, can be implemented in an advantageous and cost-saving manner in comparison with the current state of the technology. Designated thereby as operational components are all those constructional elements of the roadway which are necessary for the maintenance of the main functions on the part of the vehicle for the non-contacting support, guidance, and propulsion or braking, as well as the mechanical emergency stopping and braking. Hereby, as a rule, this relates to the steel side guiderails, the emergency stopping supports which are also of steel, steel support rails, the linear drive motor reaction rails, which are constituted of aluminum or copper in the case of the closed-circuit stator drive, or the axial stator components, consisting of laminated sheet metal packets with an inserted cable winding, in case of the axial stator drive. The total number of the operational components can be reduced for certain magnetic track systems through a suitable constructive configuration of the roadway support to merely three components for each support side.
Steel roadways are known (DE-OS 31 11 385), in which the operational components can be screwed onto the main support construction. When, concurrently, such solutions possess the considerable advantage that the individual operational components can be, if required, subsequently adjusted or even exchanged, they have proven themselves to be disadvantageous to the extent that because of the large number of screws or bolts which are required, there can be reached only a limited production speed. In addition thereto, the manufacturing process itself can only be automated to a certain extent.
In contrast with the above-described approach with screw-threaded operational components, steel roadways are known in which the operational components are partly or entirely welded together with the main support or carrier structure. In a known approach of that type, the side guiderail as well as the stator carrier which is also designated as the longitudinal support, which on the one hand, serves as the emergency stopping support and, on the other hand, carries the axial stator components, are fixedly interconnected with the main support structure through welding seams. Inasmuch as the side gui
REFERENCES:
patent: 2454583 (1948-11-01), Wisely
patent: 3300936 (1967-01-01), Travaglia
patent: 3360892 (1968-01-01), Rosso
patent: 3807116 (1974-04-01), Flynn
Geri Engineering GmbH
Reese Randolph A.
LandOfFree
Steel roadway for magnetic tracks does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Steel roadway for magnetic tracks, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Steel roadway for magnetic tracks will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1584115