| 摘要 |
The present invention embraces a manually operated arrangement ("A") and a method, adaptable for a transfer along a longitudinal extension of a rail (1) and intended to be able to unsecure said rail from* a subjacent crosstie (2) by a horizontal transfer of clips (3: 3a), included in fastening elements (4), and displaceably oriented in relation to a holder (5, 5a) included in the fastening element (4), where the holder (5) co-operates firmly with said crosstie (2). The respective one of said clips (3; 3a) is adapted to, by a movement, allow displacing the clips (3: 3a) horizontally, for a disengagement from the rail base (1c) in relation to the holder (5). An opposed first pair (6a, 6b) of a first lever-shaped means (6) is adapted to, via its lower end areas (6aa, 6ab), co-operate with each a clip (3, 3a) in order to activate their distancing, horizontal movements, said first lever-shaped means (6), with its first pair of levers (6a, 6b), being turnably arranged around middle horizontal turning shafts (7, 7', 8, 8'), and where they, via their upper end areas (6ac, 6ad), are in a co-operation with an extensible or shortenable device (9), in order to bring said upper end areas (6ac, 6ad) toward each other upon an unsecuring movement of the clips (3, 3a). Said device (9) is arranged to directly or indirectly co-operate with a pair of levers (11a, 11b) in a second lever-shaped means (11), which is adapted to, via its lower end areas (11aa, 11ab), be so movably arranged that said end areas, by counter-directed tensional forces, become adapted to co-operate stiffly with the rail head (1a). |
