公开(公告)号：WO2022132022A1

公开(公告)日：2022-06-23

申请号：PCT/SE2021/051278

申请日：2021-12-17

Applicant: HUSQVARNA AB

Inventor： JÖNSSON, Andreas ,  STUHRMANN, Mikael ,  LAWENIUS, Mats ,  SANDSTRÖM, Per ,  LINDEBERG, Magnus ,  OTTOSSON, Linus ,  SVÄRD, Henrik ,  NYSTRÖM, Robert ,  LEFF-HALLSTEIN, Joakim ,  HUBER, Martin

IPC: E04F21/24 ,  B24B7/18 ,  G01B11/30 ,  G01N33/38 ,  G05D1/02 ,  G01K13/00 ,  G01N27/22 ,  G01S17/08 ,  G01S17/48 ,  G01S17/88

Abstract: A concrete surface processing machine (100) for processing a concrete surface, wherein the machine comprises means for self-locomotion and a control unit (110) arranged to control the means for self-locomotion, wherein the machine comprises one or more surface quality sensors connected to the control unit (110) and arranged to determine a local surface quality of the concrete surface, and wherein the control unit (110) is arranged to control a self-locomotion of the machine to determine a plurality of local surface quality values associated with respective different locations on the concrete surface.

公开(公告)号：WO2021206603A1

公开(公告)日：2021-10-14

申请号：PCT/SE2021/050169

申请日：2021-03-01

Applicant: HUSQVARNA AB

Inventor： JÖNSSON, Andreas ,  LEFF-HALLSTEIN, Joakim ,  NYSTRÖM, Robert ,  HUBER, Martin ,  NYBERG, Christian ,  BERGGREN, Gustav ,  SKÖLD, Ulrica ,  KÖNIGK, Cathérine ,  STUHRMANN, Mikael ,  LAWENIUS, Mats ,  SANDSTRÖM, Per

IPC: B24D7/14 ,  B24B7/18

Abstract: An abrasive tool for a floor grinder, wherein the tool extends along a wear direction (D) from a grinding surface (G) to a mounting surface (M), wherein the abrasive tool comprises at least two sections (410, 420, 430) separated by a surface (P) transversal to the wear direction (D), where the at least two sections comprise respective abrasive materials associated with different grit sizes, where the section located closer to the grinding surface (G) is associated with a larger grit size compared to the section located closer to the mounting surface (M).