Concentric tube suspension system for loudspeakers
OwnerLucio Proniinventor
Life of this patent
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Abstract
A concentric tube suspension system and loudspeaker system of the moving coil type, including a diaphragm supported by a frame, a voice coil including a former and voice coil winding supported by the former, and a suspension system for stabilizing and centering the voice coil in a magnetic gap while it is linearly displaced by an electromagnetic motor. The suspension system generally comprises a tubular stabilizer attached to the bottom surface of the diaphragm so as to concentrically straddle the voice coil and electromagnetic motor, and a lower corrugated suspension attached at one end to the frame and at the other end to the lower end of the stabilizer, wherein the stabilizer and lower suspension provide a centering force below the traditional neck joint location on the voice coil.
Claims29
A loudspeaker suspension device for stabilizing a moving assembly in a loudspeaker having an upper suspension and an electromagnetic motor for actuating the moving assembly, the moving assembly comprising a lower suspension, an upper suspension, voice coil including a former and winding, and a diaphragm, said moving assembly having an inherent rotational axis about which rocking can occur, said suspension device for increasing lateral stability in the moving assembly, said suspension device comprising:
- a tubular stabilizer comprising a tube having a predetermined length from an upper end to a lower end, said stabilizer depending downward from the diaphragm so as to be concentrically disposed around the voice coil and at least a portion of an electromagnetic motor of the loudspeaker;
- said upper end being attached to the diaphragm and said lower end depending below the moving assembly's rotational axis, the lower suspension being attached to said stabilizer below the rotational axis, said stabilizer facilitating increased lateral stability in the moving assembly;
- and
- means for attaching said tubular stabilizer to the diaphragm.
A loudspeaker suspension system for laterally stabilizing a loudspeaker's moving assembly to prevent undesirable rocking about a volatile rotational axis, wherein the moving assembly comprises a diaphragm and a voice coil, the voice coil including a former and voice coil winding, said suspension system comprising:
- a tubular stabilizer comprising a substantially cylindrical tube having a predetermined length from an upper end to a lower end, said stabilizer depending downward from the diaphragm so as to be concentrically disposed around the voice coil and at least a portion of an electromagnetic motor of the loudspeaker;
- a lower suspension attached to said stabilizer proximal said lower end and below the moving assembly's volatile rotational axis;
- and
- means for attaching said upper end to the diaphragm.
A loudspeaker comprising:
- a moving assembly comprising a diaphragm supported by a frame and a voice coil including a former and a voice coil winding supported by said former;
- an electromagnetic driver for driving said moving assembly, said driver and voice coil defining a magnetic gap;
- and
- suspension system for laterally stabilizing and centering said voice coil in said magnetic gap as said voice coil is linearly displaced during operation, said suspension system comprising:
- a tubular stabilizer defining a substantially cylindrical tube having a predetermined length from an upper end to a lower end, said stabilizer depending downward from said diaphragm so as to be concentrically disposed around said voice coil and at least a portion of said electromagnetic motor;
- a lower suspension attached to said stabilizer proximal said lower end and below an inherent volatile rotational axis defined by said moving assembly;
- and
- means for attaching said upper end to said diaphragm.
Dependencies are inferred from the claim text.