| 摘要 |
Arrangement for excavator buckets which are mounted on an arm of an excavator machine by means for example of a bearing pedestal (17). The bearing pedestal is provided with a bearing (20) for a shaft (23) which is joined to the excavator bucket (24). A drive arrangement (25-30) which is mounted on the bearing pedestal is coupled to the said shaft. The bearing (20) is arranged so as to permit the shaft (23) to rotate through an unlimited angle and the drive arrangement (25-30) to be able to rotate the shaft and together with this the bucket through an unlimited angle. In the position which it has adopted the bucket is locked up to a certain moment being exerted, but if this moment is exceeded it can be rotated by external forces. |
