发明名称 Electrical switch device for a machine tool
摘要 An electric switch device for a machine tool has a switch-side contact element, that is held movably and is in contact, in a contact position, with a mating contact element so as to close a circuit. The switch-side contact element is a switching spring, which is acted upon by its internal stress to move into the out-of-contact position.
申请公布号 US9024221(B2) 申请公布日期 2015.05.05
申请号 US201313760371 申请日期 2013.02.06
申请人 Robert Bosch GmbH 发明人 Lohr Guenter
分类号 H01H1/00;H01H1/24;B25F5/00;H01H9/06 主分类号 H01H1/00
代理机构 Kenyon & Kenyon LLP 代理人 Kenyon & Kenyon LLP
主权项 1. A hand-held machine tool, comprising: an electric drive motor; a tool mounting that is driven by the electric drive motor; an electrical switch device, the switch device including a switch-side contact element which is held in a movable manner and is in a contact position in contact with a mating contact element situated on a mounting plate for closing a circuit; a user-operable switch element that is operable by a user and that is configured to operate the electrical switch device, wherein the switch-side contact element is a switching spring, which, because of an internal stress of the switching spring, is acted upon to be in an out-of-contact position, wherein a supporting section of the switching spring is configured so that it is supported on the mounting plate in response to an application of force on the contact position, wherein the switching spring has a first supporting section and a second supporting section, the first supporting section and the second supporting section being situated on respective opposite sides of the mounting plate, wherein the switching spring has a soldering section which is soldered to the mounting plate and wherein one of the first supporting section or the second supporting section is formed by the soldering section, wherein the switching spring includes a supporting section having a supporting bulge, which in response to the application of force onto the switching spring is pressed against the mounting plate in the direction of the contact position, and wherein the supporting section having the supporting bulge is situated on the mounting plate on a side opposite to the soldering section.
地址 Stuttgart DE