US 4,309,130 AGranted

Mine roof support

AssigneeBochumer Eisenhutte Heintzmann GmbH & Co. KG

InventorHans-Ferdinand Bemmerl

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Abstract

A mine roof support has two sole-sliding elements, a bridge element connecting the sole-sliding elements with one another at the mine face ends of the latter, a roof supporting element supported on the sole-sliding elements, props supporting the roof supporting element on the sole-sliding elements, a displacing arrangement for displacing the sole-sliding elements and connected with the bride element, a guiding arrangement located between the sole-sliding elements and including two laterally spaced guiding rods connected at their mine face ends with a support element and at their backfilling ends with the bridge element via displacing arrangement, wherein a carriage is positively incorporated between the guiding rods of the guiding arrangement. The carriage carries a cylinder-and-piston unit which connects the carriage with the guiding arrangement at the backfilling end of the latter. The carriage also has a coupling member which extends in backfilling direction and connects the carriage with the displacing means at the backfilling end of the latter.

Claims10

Dependent claims

A mine roof support for a mine gallery in which a mining device with a large cutting region works in a mine face and a support element moves along the mine face, the mine roof support comprising two sole sliding elements;

a bridge element connecting said sole sliding elements with one another at the mine face ends of the latter;
a roof supporting element supported on said sole sliding elements;
means for supporting said roof supporting element on said sole sliding elements;
means for displacing said sole sliding elements and connected with said bridge element;
guiding means arranged between said sole sliding elements and including two laterally spaced guiding rods, said guiding rods being connected at their mine face ends with said support element, said guiding rods being also connected at their backfilling ends with said bridge element via said displacing means;
and a carriage positively incorporated between said guiding rods of said guiding means and carrying a cylinder-and-piston unit which connects said carriage with said guiding means at the backfilling end of the latter, said carriage also having a coupling member which extends in backfilling direction and connects said carriage with said displacing means at the backfilling end of the latter.

3 more elements

Dependencies are inferred from the claim text.