초록 ▼

A linear motor apparatus capable of delivery of single or multiple impacts to the body so as to provide massage or other treatment. Frequency, duration and force of impact are operator controlled variables. Resonances may be set up in body tissue material so as to result in standing waves in said bo

A linear motor apparatus capable of delivery of single or multiple impacts to the body so as to provide massage or other treatment. Frequency, duration and force of impact are operator controlled variables. Resonances may be set up in body tissue material so as to result in standing waves in said body material.

대표청구항 ▼

1. Linear motor massage apparatus, comprising: a housing having a handle; an electronically controlled linear motor secured in said housing having an elongated cylindrical member comprising a central elongated cylindrical armature fabricated of magnetic metal abuttably joined at one end to an el

1. Linear motor massage apparatus, comprising: a housing having a handle; an electronically controlled linear motor secured in said housing having an elongated cylindrical member comprising a central elongated cylindrical armature fabricated of magnetic metal abuttably joined at one end to an elongated cylindrical main shaft impact tip fabricated of non-magnetic metal of even cross section with said armature so as to be coaxial therewith, said armature joined at its other end to an elongated cylindrical main shaft extension also fabricated of non-magnetic metal and also of even cross section with said armature so as to be coaxial therewith, said extension being terminated at its end distal from said armature by a main shaft head; a cylindrical nylon bobbin in said housing having a hollow core, a forward outer surface annular compartment and a rearward outer surface annular compartment, said elongated cylindrical member being slideably disposed in said hollow core; two solenoid coils, a first one wound upon said forward outer surface annular compartment of said hollow cylindrical nylon bobbin and the other, a second solenoid coil, wound upon said rearward outer surface annular compartment of said nylon bobbin; an anvil in said housing in coaxial alignment with said elongated cylindrical member and arranged so as to be struck at one end by said main shaft impact tip during operation of said linear motor; means for supporting said anvil in said housing, comprising: a retract spring adjustment member threadedly secured to said housing; a retract spring resiliently retained between said spring adjustment member and said anvil; a knurled shoulder nut return stop; a soft tip shaft adapted by means of a spring slot to be frictionally retained in said anvil; a return spring resiliently retained on said main shaft extension between one end of said bobbin and said main shaft head for retracting said elongated cylindrical member; a knurled nut stop adjustment screw for adjusting the mechanical stroke of said elongated cylindrical member; an electric power supply situated in said handle and adapted to supply operating power to said electronically controlled linear motor; electronic control means comprising: a trigger switch having at least two positions, a first one of which positions applies electric power from said electric power supply to said first solenoid coil for a preselected duration time; an electronic control circuit to control said preselected duration time; a second one of which positions of said trigger switch applies electric power from said electric power supply to an electronically controlled transistor switching circuit such that electric power is supplied alternately to said first solenoid coil and then to said second solenoid coil in the form of a continuous train of pulses; means to control the amplitude of the train of electric pulses so applied; means to control the frequency of said train of pulses so applied; and means to control the pulse width of said pulses in said train of pulses so applied. 2. The linear motor massage apparatus of claim 1 wherein said central elongated cylindrical armature is fabricated of soft iron. 3. The linear motor massage apparatus of claim 2 wherein said elongated cylindrical main shaft impact tip and said elongated cylindrical main shaft extension are both fabricated of brass.