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    HAND-HELD POWER TOOL, AXIAL HOLDING ARRANGEMENT AND POLISHING PAD FOR SUCH A POWER TOOL
    1.
    发明公开
    HAND-HELD POWER TOOL, AXIAL HOLDING ARRANGEMENT AND POLISHING PAD FOR SUCH A POWER TOOL 审中-公开

    公开(公告)号：EP4450222A1

    公开(公告)日：2024-10-23

    申请号：EP23168812.8

    申请日：2023-04-19

    申请人： Valentini, Andrea

    发明人： Valentini, Andrea

    IPC分类号： B24B23/02 ,  B24B45/00 ,  B24B41/04 ,  B25F1/02

    摘要： The invention refers to power tool (10) comprising a tool housing (12), a motor (24) located therein and a tool shaft (36) with a rotational axis (40) and actuated by the motor (24) when in operation. A distal end of the tool shaft (36) is accessible from outside the tool housing (12). The power tool (10) further comprises a polishing pad (38) releasably attachable to the distal end of the tool shaft (36) from outside the tool housing (12) in an axial direction parallel to the rotational axis (40) and, after attachment to the tool shaft (36), held in respect to the tool shaft (36) in the axial direction by means of an axial holding arrangement (80). The axial holding arrangement (80) comprises
    a first element (36; 38) constituted by the polishing pad (38) or the tool shaft (36) and a second element (38; 36) constituted by the other one of the tool shaft (36) or the polishing pad (38), and
    at least one locking element (70) held in the first element (36; 38) movably in a radial direction between a retracted position and a locking position,
    at least one radially extending recess (76) provided in the second element (38; 36) and configured to receive part of the at least one locking element (70) when in its locking position.
    The locking elements (70) and the second element (38; 36) in and/or around the at least one radial recess (76) are made of a magnetic or ferromagnetic material so that the locking elements (70) are automatically held in their locking positions and in the at least one radial recess (76) by magnetic force.

    HAND-HELD POWER TOOL AS WELL AS AXIAL HOLDING ARRANGEMENT AND WORKING ELEMENT FOR SUCH A POWER TOOL
    2.
    发明公开
    HAND-HELD POWER TOOL AS WELL AS AXIAL HOLDING ARRANGEMENT AND WORKING ELEMENT FOR SUCH A POWER TOOL 审中-公开

    公开(公告)号：EP4450221A1

    公开(公告)日：2024-10-23

    申请号：EP23168811.0

    申请日：2023-04-19

    申请人： Valentini, Andrea

    发明人： Valentini, Andrea

    IPC分类号： B24B23/02 ,  B24B45/00 ,  B24B41/04

    摘要： The invention refers to hand-held power tool (10) comprising a tool housing (12), a motor (24) and a tool shaft (36) having a rotational axis (40) and actuated by the motor (24), and further comprising a working element (38) releasably attachable to the tool shaft (36) from outside the tool housing (12) in an axial direction and, after attachment to the tool shaft (36), held in respect to the tool shaft (36) by means of an axial holding arrangement (80). The axial holding arrangement (80) comprises
    a first element (36; 38) constituted by one of the working element (38) and the tool shaft (36) and a second element (38; 36) constituted by the other one of the working element (38) and the tool shaft (36), and
    at least two locking elements (70) assigned to the first element (36; 38) movably in a radial direction between a retracted position and a locking position,
    at least one recess (66) assigned to the second element (38; 36) for receiving the locking elements (70) when in their locking positions.
    The locking elements (70) or the second element (38; 36) in and/or around the at least one radial recess (66) comprises a magnetic material and the at least other one of the locking elements (70) and the second element (38; 36) in and/or around the at least one radial recess (66) comprises a magnetic material or a ferromagnetic material. The locking elements (70) are automatically moved into and held in their locking positions and in the at least one radial recess (66) by means of magnetic force after attachment of the working element (38) to the tool shaft (36).

    ELECTRIC TOOL
    10.
    发明公开
    ELECTRIC TOOL 审中-公开

    公开(公告)号：EP4385670A1

    公开(公告)日：2024-06-19

    申请号：EP23214527.6

    申请日：2023-12-06

    申请人： Techtronic Cordless GP

    发明人： LIN, Lin Qiang ,  HSU, Miles Andrew ,  BOYLES, Tyler Wilson ,  OLVERA, Eduardo ,  PROBY, Nicholas ,  SCHMIDT, Andrew Maclay ,  AN, Wei Wei ,  WONG, Kar Tat ,  SABIC, Adis

    IPC分类号： B25F5/02 ,  B24B23/02 ,  A01D69/00

    CPC分类号： B25F5/02 ,  B24B23/022 ,  A01D69/00

    摘要： The present invention provides an electric tool comprising a body, an operating component, an output shaft, and a stop mechanism. An arresting disc is disposed on the output shaft, and a groove is formed on the arresting disc; the stop mechanism comprises a protrusion, for example, a pin, which is operable so that the protrusion extends to insert into the groove to lock the output shaft. A stop mechanism of the present invention is easy to operate, delivers good safety performance, and has a relatively simple structure, which allows convenient production and subsequent maintenance. Further, a stop mechanism of the present invention automatically springs back to a non-stop position at which it detaches from the output shaft or the transmission gear of the transmission mechanism when the external force is lost, which prevents possible damage to the output shaft or transmission mechanism when a user starts the electric tool before releasing the stop mechanism.