Open preview picture of file
Trailable Turnout
Trailable turnout with clamp lock and recoiling cylinder
Trailable turnouts are trailed in operation (cut open) which makes manual setting of the turnout or switch machines obsolete.
After the train ran over the turnout, the turnout is re-set automatically into the original position by the resetting device.
This is achieved by a spring which acts in a cylinder filled with oil and re-locates the switches via the lock or the operating rods to their original positions.
Locks used for trailable turnouts must be trailable.
After the train ran over the turnout, the turnout is re-set automatically into the original position by the resetting device.
This is achieved by a spring which acts in a cylinder filled with oil and re-locates the switches via the lock or the operating rods to their original positions.
Locks used for trailable turnouts must be trailable.
So, for instance, the clamp lock is trailable; it can be set in case of a "wrong passage" from the turnout heel by the wheels of the vehicle and the thus produced switch movement. No damage is done to the switches and the lock elements, provided the speed of the vehicle during this trailing process is relatively low.
Trailable turnouts can be operated with a stretcher bar and without a lock.
For safety reasons the monitoring and indication of the position of the switches by point detectors (ELP final position detectors) and by light signals is recommended.
Advantages
- Trains can pass in unmanned stations or on factory tracks without any loss of time (because of manual switching)
- By retarded re-setting of the switches the wheel-sets of vehicles and the switches of the turnouts are prevented from damage. In addition, less noise is produced
- The setting time of the cylinder is adjusted to the operating conditions
- Manual setting is possible (for special runs over the turnout from the turnout toe)
- If restricted space is available, it is also possible to arrange them in longitudinal direction of the track
Technical characteristics:
| Field of application | For smaller to medium-sized turnouts which can be set with one lock |
| Max. trailing speed | 40 kph |
| Arrangement of recoiling cylinder | At the side of the closed switch |
| Special features | The switch stand is locked, the specific operating instructions must be adhered |
Self-regulating clamp lock VAE TEMPFLEX
