Spring device for spring-mounting a functional unit of an electrical appliance, and method for influencing a spring device of this kind

Spring device for suspending or for spring-mounting a functional unit of an electrical appliance, wherein said spring device has:

• at least one spring means, and
• coupling means for coupling said at least one spring means to another portion of said spring device,
• wherein at least one of:
• said at least one spring means has a spring constant or spring properties which are temperature-dependent and are variable by a temperature effect on said at least one spring means, or
• said coupling means are designed in a temperature-dependent manner in such a way that said coupling means vary their coupling effect between said at least one spring means and said spring device by a temperature effect, and
• wherein:
• heating means are provided for at least one of said at least one spring means or for said coupling means for the purpose of warming up at least one of said at least one spring means or said coupling means and for the purpose of changing at least one of said spring properties or said coupling effect thereof,
• said at least one spring means comprise a pneumatic spring with an air volume, said air volume being located in an air chamber,
• a piston is arranged in said air chamber, said piston being able to be moved along said air chamber, said piston separating said air chamber into a first air volume and into a second air volume,
• said piston is arranged between said first air volume and said second air volume,
• said first air volume and said second air volume are closed off, and
• at least one of said first air volume or said second air volume are heatable by means of said heating means.

Method for influencing a spring device in an electrical appliance comprising a movable functional unit being spring-mounted by means of said spring device,

• wherein said functional unit of said electrical appliance is spring mounted by means of said spring device and has a resonant frequency, wherein the method comprises the steps of:
• providing a spring device comprising:
• at least one spring means, and
• coupling means for coupling said at least one spring means to another portion of said spring device,
• wherein at least one of:
• said at least one spring means has a spring constant or spring properties which are temperature-dependent and are variable by a temperature effect on said at least one spring means, or
• said coupling means are designed in a temperature-dependent manner in such a way that said coupling means vary their coupling effect between said at least one spring means and said spring device by a temperature effect, and
• wherein heating means are provided for at least one of said at least one spring means or for said coupling means,
• at least one of heating said spring means of said spring device for changing its spring properties, or heating said coupling means for changing a coupling effect between
• said at least one spring means and said spring device, and
• wherein, when a frequency has reached at least 80% of said resonant frequency, said coupling effect is greatly increased in such a way that said at least one spring means is fully effectively coupled to said spring device or connected to said spring device.