Electricity: transmission to vehicles – Conductors – Trolley
Patent
1990-02-12
1991-11-19
Spar, Robert J.
Electricity: transmission to vehicles
Conductors
Trolley
238134, 264285, 138175, H02G 102
Patent
active
050668340
DESCRIPTION:
BRIEF SUMMARY
The invention concerns guide rails for passenger and material transportation systems as are used e.g. in inclined staircase lifts, cable and tow lifts, overhead material conveyers for carrying or conveying cars, slides or individual pulleys.
BACKGROUND OF THE INVENTION
Guide rails of the above type, as can be seen for example in DE-PS 32 14 044, are formed, depending on the intended use, with guides or gravity-roller conveyers for the car or slide to be guided, grooves for pulley chain cables or slip-ring trolley tracks.
In addition to straight guide rails, double-curved guide rails are often required in order to be able to make maximum use of on-site space conditions.
A double-curved guide rail of this kind is described in DE-AS 10 99 936, in which the guide rail of the monorail track has sections made of an elastic material, such as rubber or the like, which are sufficiently hard to absorb the roller pressure and flexible enough to allow the track to be bent and which are fastened at stays spaced from one another.
Double-curved guide rails have to date been theoretically constructed with respect to their lengths and curves either by calculations in advance or determined according to local conditions by taking measurements and model type at the construction site and then finished in the factory and only then installed at the construction site. Due to cost and manufacturing techniques, curvatures must therefore always be reduced to simple, basic geometric forms such as arcs and straight lines. This inevitably leads to undesired deviations from the ideal shape.
Due to its high costs, the guide rail has to date only been used for expensive special applications. It is not suitable for inexpensive mass applications.
It is the object of the invention to design guide rails in such a way that they can be shaped and immediately mounted at the construction site to meet space conditions without prior structural calculations and special custom-manufacturing, whereby inexpensive rod or rolled stock is to be used.
This object is solved with the features of claim 1. Advantageous embodiments can be derived from the Figures, showing:
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 a three-dimensional illustration of a sample two-dimensionally curved guide rail with mounted rolling carriage.
FIG. 2 a cross-section through a sample guide rail.
DESCRIPTION OF A PREFERRED EMBODIMENT
In the embodiment according to FIG. 1, rolling carriage 3 sits on guide rail 1. Rolling carriage 3 has a motor, not illustrated, with a sprocket 4 which engages in the lateral arc roller chain 5. Rolling carriage 3 has four rollers 6 which are supported by and roll on guide rail 1. The load lifting hook 7, which carries a seat for passenger transportation or a device for loads (not shown), is located at rolling carriage 3.
According to FIG. 2, guide rail 1 consists of a plastic casing 8 which is hollow like a hose. Steel wires 9, which are held in position and separated by range spacers 10, are found in the plastic casing 8. In addition, an electric conductor 11 and a lateral arc roller chain 5, into which sprocket 4 engages and which is embedded in a separate T-groove 12, are found in the plastic casing 8. The remaining hollow spaces 13 in the plastic casing 8 are filled up with cement or a similar substance.
In FIG. 1, guide rail 1 is fixed by mounting supports 2 so as to meet space conditions and comply with individual wishes. Mounting supports 2 are fastened to walls or other supporting structures which are not shown.
When guide rail 1 is being assembled, the flexible plastic casing 8, which has not as yet been filled with cement and only contains the steel wires 9, range spacers 10, electrical conductor 11 and lateral arc roller chain 5, is mounted at the installation site in accordance with space conditions and individual wishes, in that it is bent as desired at appropriate distances and fixed by fastening the mounting supports 2 to the respective supporting structures such as walls, etc.
Without the cement filling, the plastic casing 8 is
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Lowe Scott L.
Spar Robert J.
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