Abstract: A bucket connection for a turbine runner that includes a number of buckets encircling a centre disk. At least one bucket is pivotably or hingedly connected to the centre disk, and the position of the bucket relative to the centre disk under operation is set by an abutment between the bucket and a support, where the support is connected to or constitutes a part of the centre disk and where the abutment is constituted by a non-planar abutment surface on the support and an abutment surface on the bucket The bucket connection is provided with a buckling and is the abutment surface of the bucket is provided with a buckling adapted to fit into the buckling of the abutment surface of the support, whereby the abutment is adapted to accommodate forces acting both tangentially and radially of the bucket.

Abstract: A bucket connection for a turbine runner (1) where the turbine runner (1) includes a number of buckets (4) encircling a centre disk (2), where at least one bucket (4) is pivotably or hingedly connected to the centre disk (2), and where the position of the bucket (4) relatively the centre disk (2) under operation is set by an abutment (22) between the bucket (4) and a support (16), where the support (16) is connected to or constitutes a part of the centre disk (2), and where the abutment is constituted by an abutment surface 18 on the support 16 and an abutment surface 20 on the bucket 4, where the abutment surface 18 on the support 16 is non-planar, in that it is provided with a buckling 19, and that the abutment surface 20 of the bucket 4 is provided with a buckling 21 adapted to fit into the buckling 19 of the abutment surface 18 of the support 16, whereby the abutment 22 is adapted to accommodate forces acting both tangentially and radially of the bucket 4.