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Rail contact element and fall-off detection unit
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A technology for contacting components and rails, applied in transportation and packaging, railway car body parts, railway signals and safety, etc., can solve the problems of easy damage, difficult and expensive manufacturing of optical fibers, etc.
Active Publication Date: 2022-07-15
THALES MANAGEMENT & SERVICES DEUT GMBH
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Optical fibers are easily damaged during the manufacturing process, which makes manufacturing difficult and expensive
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[0046] figure 1 A schematic view of the track contact element 10 is shown. The spring element 14 is attached to the front surface of the body 16 of the track contact element 10 . The front surface of the body 16 may be attached to the rail 12 ( figure 2 ) to place the track contact element 10 in a mounted state “mounted” to the track 12 . The track contact element 10 includes an optical fiber 18 through which the light beam 22 can pass. The light beam 22 may be emitted through the exit surface 20 of the optical fiber 18 .
[0047] figure 2 An embodiment of the track contact element 10a for drop detection is shown in a state not mounted to the track 12 . Optical fiber 18 is attached to body 16, which is made of light absorbing material. The spring element 14 is attached to the body 16 . The reflective element 24 is attached to the spring element 14 . When the track contact element 10a is not mounted to the track 12, the spring element 14 is in a relaxed state. The in...
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Abstract
The invention relates to a rail contact element (10, 10a, 10b, 10c, 10d, 10e, 10f, 10g) for drop detection, the rail contact element (10, 10a, 10b, 10c, 10d, 10e, 10f, 10g) being mountable to a rail (12) and comprising a spring element (14), a body (16) holding the spring element (14), and an optical fiber (18), the spring element (14) being in a tensioned state or a relaxed state depending on the mounted state of the rail contact element (10, 10a, 10b, 10c, 10d, 10e, 10f, 10g). The optical fiber (18) comprises an exit surface (20) for emitting a light beam (22), and the track contact element (10, 10a, 10b, 10c, 10d, 10e, 10f, 10 g) further comprises a reflective element (24). The spring element (14), the reflective element (24) and the optical fiber (18) are arranged such that the influence of the reflective element (24) on the light beam (22) is different in a tensioned state than in a relaxed state.
Description
Background technique [0001] The present invention relates to a rail contact element for drop detection, wherein the rail contact element is mountable to a rail and includes a spring element, a body holding the spring element, and an optical fiber, wherein the spring element is in a position according to the mounting state of the rail contact element A state of tension or relaxation. The present invention also relates to a fall-off detection unit. [0002] A corresponding track contact element is disclosed in EP3459811A1. [0003] In order to make the railway system safe and reliable, track monitoring elements (eg axle counters) may be used to determine certain characteristics of the track and / or the trains traveling on the track. Typically, track monitoring elements need to be mounted to the track and in contact with the track surface. In order to ensure that the desired characteristics of the track and / or the trains traveling on the track are properly determined, it is nec...
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Application Information
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