To provide an unloader which controls or reduces an occurrence of damage to an excavation section and a main section and shortens restoration time.
An unloader comprises: a bucket elevator 9 which unloads a bulk load M by excavating the same; a boom conveyor which conveys the bulk load M unloaded by the bucket elevator 9; a hopper; and a belt feeder. The unloader also has shear pins 94 and link plates 95 which connect an upper section 93 and a lower section 92 of the bucket elevator 9. When a predetermined load is applied to the bucket elevator 9, the shear pins 94 and the link plates 95 transfer a rigidly connected state between the upper section 93 and the lower section 92 into a state which allows the lower section 92 to swing with respect to the upper section 93.
| JPH1095536A | 1998-04-14 | |||
| JP2001335282A | 2001-12-04 | |||
| JP2007246177A | 2007-09-27 | |||
| JP2002321812A | 2002-11-08 |
Yoshiki Kuroki
Yasuki Yanagi