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US 2006/0037511 A1Published application
Mobile track maintenance machine
AssigneeFranz Plasser Bahnbaumaschinen-Industriegesellschaft m.b.H.
InventorsJosef Theurer, Helmar Brands
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Abstract
A mobile track maintenance machine comprising a machine frame extending in a longitudinal direction and supported on a track by undercarriages, track working tools mounted on the machine frame, a sound-proofing wall arranged on the machine frame and having an upper end, a lower end and side ends spaced from each other in the longitudinal direction and connecting the upper and lower ends, and drive means for adjusting the sound-proofing wall relative to the machine frame.
Claims7
A mobile track maintenance machine comprising
- (a) a machine frame extending in a longitudinal direction and supported on a track by undercarriages,
- (b) track working tools mounted on the machine frame,
- (c) a sound-proofing wall arranged on the machine frame and having an upper end, a lower end and side ends spaced from each other in the longitudinal direction and connecting the upper and lower ends,
- (1) one part of the sound-proofing wall at the lower end being comprised of elastic material forming a flexible sound-proofing wall section, and
- (2) another part of the sound-proofing wall being a rigid sound-proofing wall section connected to an upper edge of the flexible sound-proofing wall section, and
- (d) drive means for adjusting the sound-proofing wall relative to the machine frame.
3 more elements
Dependencies are inferred from the claim text.