BETONGSVILLEBLOKK SOM OMFATTER EN SKINNEBAERENDE MELLOMLAGSPLATE AV ELASTOMERT MATERIAL, EN FREMGANGSMAATE FOR FREMSTILLING AV SVILLEBLOKKEN OG EN SKINNEBAERENDE PLATE FOR GJENNOMFOERING AV FREMGANGSMAATEN

摘要

A concrete sleeper block (2) has a rail support insert plate (1) of elastomeric material mounted i a recessed upper portion (2a) thereof. The insert plate has downwardly extending projections (1c) which are provided with holes and which are arranged to be accommodated in corresponding holes (2c) in the recessed portion (2a) of the sleeper block (2). The projections accommodate a securing means, for example in the form of a ball (1e) made of an elastic material, which when the plate is mounted are pressed down to a bottom position in the projection while expanding said projection in respective holes. A method of manufacturing the sleeper block and a rail support insert plate (1) of the kind described are also objects for protection.