首页>
外国专利>
Device intended for breaking or cracking hard surfaces such as concrete paving
Device intended for breaking or cracking hard surfaces such as concrete paving
展开▼
机译:用于破坏或破裂坚硬表面(例如混凝土铺路)的设备
展开▼
页面导航
摘要
著录项
相似文献
摘要
The invention relates to a device comprising a solid element and means enabling the said element to be lifted and then released. In accordance with the invention, the solid element comprises a slab 3 which may slide freely in a frame, and the lifting means comprise means 5 for driving by friction on one side of the slab and bearing means 6 on the other side of the slab, these bearing means being movable between an active lifting position and a passive position in which the said slab is released so as to fall freely. Application in particular to the breaking or cracking of the pavement of motorways, airport runways or parking areas. IMAGE
展开▼