Abstract: A tree harvester which is intended to be fitted to a crane arm or the like for the purpose of uprooting trees. In order to supplement the ground preparation that is automatically achieved adjacent the exposed soils areas left in the ground subsequent to pulling out a tree by its roots, it is proposed in accordance with the invention, among other things, that the tree harvester is provided with a soil scraping or cultivating unit intended to be brought into engagement with and moved along the ground so as to prepare the ground for forest regeneration.

Abstract: A tree harvester including gripping arms (4, 5) a cutting tool (3), and a primary tree-holding device (10) for the accumulation of harvested trees. The primary holding device includes a pivotal tree-holding member (15) having an axially extensible arm (18) and functioning to hold the accumulated trees firmly against an abutment (11) provided on the primary holding device (10). The harvester also includes a magazine (30) in which harvested trees are collected, and a secondary tree-holding device (40) by means of which the trees are retained in the magazine. The secondary holding device includes a pivotal tree-holding member (41) provided with an axially extensible arm (44) operative to hold the trees collected in the magazine (30).

Abstract: The invention relates to a method of cleaning stumps from adherent impurities such as soil, stones, litter or the like and a device for carrying the method into effect. The object of the invention is to realize a more efficient and economical cleaning of stumps by grasping and retaining the stump by a gripping means, lifting up and bringing the stump to swing to and fro in order to strike against an out-of-phase pendulating or driven device whereby impurities are shaken off.For carrying out the method a device is proposed including a gripping means which is articulated in or adjacent impact means, such as a frame or the like, and driving means adapted to set the frame swinging such that the stump grasped by the gripping means shaken by repeated impacts with the frame throughout the driving operation, whereby the impurities are shaken off.