Robert Boschgmbh

Houman Ramezanian

Michael Froehlich-Schlapp

Stefano Delfini

Claus Kramer

Ingo Richter

Josef Weigt

Henning Stoecklein

Joachim Loeblein

Martin Scherrer

Raphael Schymura

The disclosure is based on an electronic module for an insert tool, in particular a drill bit or a chisel, including at least one electronic device for processing and/or sensing insert-tool-specific characteristics, including at least one holding device for releasably holding the electronic device on the insert tool. The holding device having at least one insert-tool interface having at least one contact surface that, when the holding device is arranged on the insert tool, is in contact, in particular in direct contact, with the insert tool, and including at least one damping unit for damping vibrations acting on the electronic device. The damping unit at least partially constitutes the insert-tool interface.

Electronic module and insert tool system comprising such an electronic module

The invention relates to an electromagnetic switch () for a starting device (), comprising two contacts (,) that are electroconductively inter-connected by a mobile contact bridge (). At least one of the two contacts () preferably comprises a contact surface () fixed to a contact stud (,). According to the invention, a) the contact surface () is at least essentially flat, and an edge () of the contact bridge (), is arranged in such a way that, (), providing electrical contact between the contact bridge () and the contact once it has come into contact with the contact surface (), it enables a linear contact between the contact () and the contact bridge (), or b) the contact surface () comprises bumps lying essentially in one plane, and an edge () of the contact bridge (), providing electrical contact between the contact bridge () and the contact (), is arranged in such a way that, once it comes into contact with the contact surface (), it enables essentially a multiple-point contact between the contact () and the contact bridge (), or c) a surface () of the contact bridge (), oriented towards the contact (), and a longitudinal axis () of the contact stud (), form an angle (&#x3b2;) oriented towards a central axis () of the switch () and larger than 90&#xb0;, or d) a surface () of the contact bridge (), oriented towards the contact (), and a longitudinal axis () of the contact stud (), form an angle (&#x3b2;) which is radially outwardly oriented towards a central axis () of the switch () and is larger than&#xb0;. The invention also relates to a method for switching an electromagnetic switch, preferably a starting device (), comprising two contacts () that are connected by a mobile contact bridge (). When the contact bridge () is contacted by at least one of the two contacts (), a rubbing movement is generated between the contact bridge () and the contact surface () of the contact ().

Electromagnetic switch for a starting device, and method for switching the electromagnetic switch

The invention relates to a solenoid switch for starting devices for starting internal combustion engines, comprising a joint () between assembled parts of the solenoid switch. The invention is characterized in that the joint is formed in such a way that a direct penetration of spray water is prevented and pressure compensation is enabled.

Solenoid switch

The invention relates to a starter relay () for internal combustion engines, comprising a relay coil () and an armature (), which interacts with a fork lever () by way of a driver () so as to toe-in a starter pinion, and comprising a contact bridge () which is to be actuated by the armature by way of a switch axis () and interacts with switch contacts (), wherein a coupling () connects the switch axis and the armature such that they can be displaced with respect to each other to a limited extent. In order to ensure that welded contacts tear open and the neutral position of the fork lever is achieved when the relay is shut off, a pretensioned compression spring () is inserted between the armature () and the end of the fork lever ().

Growing community of inventors

Ennetbaden, Switzerland

Houman Ramezanian