Tunnel or road header

Details Tunnel or road header Tunnel or road header

E - Fixed Constructions

21

C

262/47

E21C 25/06 (2006.01) E21D 9/10 (2006.01)

Patent

CA 1217512

A b s t r a c t The tunnel or road header 1 is provided with a caterpillar running gear 2 and has a portal frame 12. A winning means engaging the rock face is mounted displaceably on said frame on a horizontal track 16 extending transversely of the longitudinal direction of the roadway. The winning means consists of a shearer machine 19 equipped with a carrier arm 20 which is pivotable parallel to the rock face through more than 360° and the shearer drum 7 of which rotates about an axis 21 extending towards the rock face and parallel to the roadway floor.

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