Robert Boschgmbh

Berthold Walter

Theodor Sturm

Olaf Schmid

Gerhard Schmidt

Joachim Naser

Gerhard Hettich

Hans-Dieter Schmid

Hans Schrumpf

Lothar Haas

Ludwig Spechner

Karl Berthel

Hans-Peter Degel

Manfred Kamp

Detector of the inflation pressure of motor vehicle tires

In order to define more precisely the pivot line (25) on which the armature (17) swings about the magnet yoke (12) at its line of contact therewith, the armature restoring spring (28) is made of spring wire (29) bent into meander shape. One end of it is attached to the magnet yoke and the other to an extension (31) of the armature that extends across the pivot line. A spring clip (34) is snapped over the restoring spring and onto the sides of the magnet yoke pushes the restoring spring against the magnet yoke and opposes lengthwise shifting of the armature across the edge (32a) on which it is pivoted.

Electromagnetic relay with zig-zag armature spring

Reduced base plate dimensions are provided for an electromagnetic relay of the kind having a flap type armature by disposing the core which carries a spool and the winding therein perpendicular to the base plate with its free end spaced from the base plate sufficiently for the armature to swing between the free end of the core and the base plate, while being hinged in a seat at one end of the armature provided in the magnet yoke. Support for the magnetic system of the relay, which like the base plate assembly is a preassembled unit is provided by anchoring portions (29) of the magnet yoke which lie against the armature seat and are so set in the base plate when the two subassemblies are put together, that the free end of the core is in the position described. A leaf spring carrying the switch contact as an aperture stamped out in it for centering the armature. The switching path connections are very short and various details are provided to simplify assembly and adjustment of the relay in mass production.

Electromagnetic relay with underslung armature

A relay capable of being assembled by machine and electrically connected by dip-soldering operations to metallic strips having prongs passing through an insulating base plate to provide plug-in connections, has metallic leads, lugs and strips preshaped so that when they are mounted in the base plate or the winding spool, as the case may be, pairs of them will interfit at locations where they are then soldered by dip soldering.

Plug-in electromagnetic relay

Growing community of inventors

Oberasbach, Germany

Berthold Walter