Power tools and methods

The present invention relates to a power tool (10， 20， 30， 40， 50)， the power tool-a support structure 21，-a pivot bearing 27 disposed on the support structure 21，-the pivot A shaft 8 supported on the support structure 21 via a bearing 27， a rotatable tool 1 coupled to the shaft 8， in particular a saw blade， a milling cutter or an abrasive wheel，-the tool 1 ) A strain gauge assembly 2 for detecting a mechanical variable 3 dependent on the force arising from-and the power tool 10， 20， 30， 40， 50 according to the detected mechanical parameter 3 And a control device 4 configured to identify events and / or states. The strain gauge assembly 2 is arranged in a fixed structure section 5 coupled to the pivot bearing 27 in a force transmission manner， but not in the pivot bearing 27. The invention relates to an electric tool (10， 20， 30， 40， 50) comprising: a support structure (21); a pivot bearing (27) mounted on the support structure (21); a shaft (8) mounted on the support structure (21) via the pivot bearing (27); a tool (1) which is rotatably coupled to the shaft (8)， in particular a saw blade， a milling cutter， or an abrasive wheel; a strain gauge assembly (2) for detecting a mechanical variable (3) which depends on a force originating from the tool (1); and a control device (4) which is designed to detect an occurrence and/or a state of the electric tool (10， 20， 30， 40， 50) according to the detected mechanical variable. The strain gauge assembly (2) is mounted on a stationary structure portion (5) coupled in a force-transmitting manner to the pivot bearing (27)， and is not mounted on the pivot bearing (27). The invention relates to an electric tool (10， 20， 30， 40， 50) comprising: a support structure (21); a pivot bearing (27) mounted on the support structure (21); a shaft (8) mounted on the support structure (21) via the pivot bearing (27); a tool (1) which is rotatably coupled to the shaft (8)， in particular a saw blade， a milling cutter， or an abrasive wheel; a strain gauge assembly (2) for detecting a mechanical variable (3) which depends on a force originating from the tool (1); and a control device (4) which is designed to detect an occurrence and/or a state of the electric tool (10， 20， 30， 40， 50) according to the detected mechanical variable. The strain gauge assembly (2) is mounted on a stationary structure portion (5) coupled in a force-transmitting manner to the pivot bearing (27)， and is not mounted on the pivot bearing (27).

本发明涉及一种电动工具（power tool）（10、20、30、40、50），该电动工具包括：支撑结构（support structure）21，设置于该支撑结构21上的枢轴轴承（pivot bearing）27，经由该枢轴轴承27支撑于支撑结构21上的轴8，连接于该轴8的可转动工具1（具体为锯片、铣刀或砂轮），用于检测依赖于源自该工具1的作用力的机械变量（mechanical variable）3的应变片组件（strain gauge assembly）2，以及被配置为根据所检测到的机械参数3识别该电动工具10、20、30、40、50的事件和/或状态的控制装置（control device）4。该应变片组件2设置于以力传递方式与枢轴轴承27耦合的固定结构段（stationary structure portion）5上，而非设置于枢轴轴承27内。
本发明涉及一种电动工具（10、20、30、40、50），其包括：支撑结构（support structure）21；安装于该支撑结构21上的枢轴轴承（pivot bearing）27；经由该枢轴轴承27安装于支撑结构21上的轴8；可转动地连接于该轴8的工具1，具体为锯片、铣刀或砂轮；用于检测依赖于源自该工具1的作用力的机械变量（mechanical variable）3的应变片组件（strain gauge assembly）2；以及被设计为根据所检测到的机械变量识别该电动工具10、20、30、40、50的事件和/或状态的控制装置（control device）4。该应变片组件2安装于以力传递方式与枢轴轴承27耦合的固定结构段（stationary structure portion）5上，而非安装于枢轴轴承27上。
本发明涉及一种电动工具（10、20、30、40、50），其包括：支撑结构（support structure）21；安装于该支撑结构21上的枢轴轴承（pivot bearing）27；经由该枢轴轴承27安装于支撑结构21上的轴8；可转动地连接于该轴8的工具1，具体为锯片、铣刀或砂轮；用于检测依赖于源自该工具1的作用力的机械变量（mechanical variable）3的应变片组件（strain gauge assembly）2；以及被设计为根据所检测到的机械变量识别该电动工具10、20、30、40、50的事件和/或状态的控制装置（control device）4。该应变片组件2安装于以力传递方式与枢轴轴承27耦合的固定结构段（stationary structure portion）5上，而非安装于枢轴轴承27上。