Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Multiple contact type
Patent
1996-02-14
1998-02-10
Donovan, Lincoln
Electricity: magnetically operated switches, magnets, and electr
Electromagnetically actuated switches
Multiple contact type
335202, H01H 6702
Patent
active
057173702
ABSTRACT:
In an electromagnetic switching device, particularly in a contactor, a connecting piece, which is flexible in all directions, is fitted between the armature (9) and the contact bridge carrier (6). An intermediate plate (8) carrying elastic bars (14, 15) is placed between the armature (9) and the contact bridge carrier (6) so that it rests torsion-free against the contact bridge carrier (6). The elastic bars (14, 15) act upon both end regions of a coupling bolt (10) guided through a hole (19) in the armature (9), as well as in a direction perpendicular to it upon both end regions of the armature (9). The coupling bolt (10), and therefore also the armature (9), are connected to the contact bridge carrier (6) via a tow connection The intermediate plate (8), which holds the armature (9) and the contact bridge carrier (6) apart through an elastic tension, guides, with the help of the guiding elements (20) molded on it, both the contact bridge carrier (6) as well as the armature (9) into the housing (1) of the switching device. The coupling bolt (10) rests at least at both end regions of the hole (19) in the armature (9), and therefore, the bending stress imposed upon the coupling bolt (10) during impacts is held at a low value.
REFERENCES:
patent: 4710740 (1987-12-01), Dennison
patent: 4980801 (1990-12-01), Guinda et al.
patent: 5296826 (1994-03-01), Hart et al.
Allen-Bradley Company Inc.
Donovan Lincoln
Horn John J.
Miller John M.
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