| 摘要 |
When maintaining a ground pivot angle of the bucket (15) constant irrespective of any vertical pivotal movement of the boom (12), a ground angle maintaining controlling section (26) stops a bucket actuator (17) when it is detected that a vertical pivot angle of the bucket (15) has reached an elevation restricted angle which is set smaller by a set angle than an elevation limit angle of the bucket (15) or a lowering restricted angle which is set greater by a set angle than a lowering limit angle of the bucket (15). |
