公开(公告)号：WO2014083243A1

公开(公告)日：2014-06-05

申请号：PCT/FI2013051116

申请日：2013-11-28

Applicant: KWH MIRKA AB OY

Inventor： HÖGLUND GÖRAN

IPC: A63D5/10 ,  B24B11/06 ,  B24B23/03 ,  B24B27/00 ,  B24B55/10 ,  B24D11/00

CPC classification number: B24B11/06 ,  A63D5/10 ,  B24B1/00 ,  B24B23/03 ,  B24B27/0076 ,  B24B55/105 ,  B24D11/008

Abstract: The present invention relates to a method and an arrangement for grinding spherical products (12), such as e.g. bowling balls, in particular. Such an arrangement comprises at least one grinding machine (1) having a spherically oscillating grinding movement. A fastening plate (6) fitted on the grinding machine has a spherically shaped bearing surface (7) and a grinding product (9) fitted on this, which through its slits (13) adopts a position with accuracy of shape on the spherically shaped surface. The grinding product (9) will form a contact surface (17) in the interface, in which the grinding product cooperates with the spherical product. This contact surface then adopts a radius of curvature arranged to substantially correspond to the radius (r) of the spherical product (12). The grinding is performed with a spherically oscillating grinding movement, which is adapted to the radius of the spherical product and simultaneously coincides with the radius of curvature of the contact surface.

Abstract translation: 本发明涉及一种用于研磨球形产品（12）的方法和装置，例如， 特别是保龄球。 这种布置包括至少一个具有球形摆动研磨运动的研磨机（1）。 安装在研磨机上的紧固板（6）具有球形支承面（7）和安装在其上的研磨产品（9），其通过其狭缝（13）在球形表面上采用形状精确的位置 。 研磨产品（9）将在界面中形成接触表面（17），其中研磨产品与球形产品配合。 该接触表面然后采用基本上对应于球形产品（12）的半径（r）的曲率半径。 磨削是通过球形摆动研磨运动进行的，其适用于球形产品的半径，同时与接触表面的曲率半径重合。

公开(公告)号：WO2008113893A2

公开(公告)日：2008-09-25

申请号：PCT/FI2008050130

申请日：2008-03-20

Applicant: KWH MIRKA AB OY ,  NORDSTROEM CAJ

Inventor： NORDSTROEM CAJ

IPC: B24B23/02 ,  B24B23/04 ,  H02P6/00

CPC classification number: B24B47/12 ,  B23Q11/127 ,  B24B23/00 ,  B24B23/02 ,  B24B23/04

Abstract: The present invention particularly relates to a hand-held sanding machine with an outer housing (1), a tool shaft (2) and a brushless electric drive motor. In the present invention, the rotor of the drive motor is fastened to the tool shaft (2) of the sanding machine, and the stator (6) is positioned in the outer housing (1). The present invention also relates to a control method for an electric sanding machine.

Abstract translation: 本发明特别涉及具有外壳（1），工具轴（2）和无刷电驱动马达的手持砂光机。 在本发明中，驱动马达的转子固定在砂光机的工具轴（2）上，定子（6）位于外壳（1）中。 本发明还涉及一种电动砂光机的控制方法。