Emergency stop switch

An emergency stop switch comprising:

• an adaptor having a first end supported on a contact block having a first set of contacts;
• a contact carrier movably mounted within said contact block and provided with a second set of contacts adapted for contacting the first set of contacts;
• a closing ring and a pushbutton slidably mounted in said closing ring, the pushbutton including first bores on an underside thereof, with the pushbutton being slidably engagable with said contact carrier between first and second positions to actuate the first and second contact sets on the contact carrier, and the contact carrier being arranged within the contact block and being biased against movement of said pushbutton by a force of multiple springs;
• means for connecting the adaptor and the contact block, via adaptor bosses and contact block bosses, with a face plate having an opening in alignment with said adaptor;
• at least two contact arms, each contact arm having a contact area, with the contact arms being mounted on the contact block;
• the contact arms being actuated via a plunger element, with the plunger element being in connection with the pushbutton;
• a control element, within the adaptor;
• and
• multiple cams movably mounted on said plunger element, with the cams being guided by the plunger element and biased by a single spring toward first bevels arranged on the closing ring and second bevels arranged on the control element to retain said pushbutton in one of first or second position;
• wherein the closing ring is mounted in said opening at said face plate and further includes first stops, spring bolts, second bores, said first bevels and first recesses;
• the first stops preventing the closing ring from moving through said opening of the face plate;
• the spring bolts and the second bores serving as the connection with the control element;
• and the first bevels in conjunction with the second bevels, in cooperation with the cams, retaining the pushbutton in one of said first and second positions;
• and wherein the plunger element includes flanges located within the first recesses for limiting the travel of the pushbutton between said first and second positions.