VIBRATORY CUSHION

• US 3,831,591 A
• Filed: 03/14/1973
• Issued: 08/27/1974
• Est. Priority Date: 08/16/1971
• Status: Expired due to Term

• Current Assignee: Reginald H. Newkirk
• Original Assignee: Reginald H. Newkirk
• Inventors: Newkirk, Reginald H.
• Primary Examiner(s): Trapp, Lawrence W.
• Application Number:
  US05/341,279
• Time in Patent Office: 531 Days
• Field of Search: 128/32-36
• US Class Current: 601/58
• CPC Class Codes: A47C 7/72 Adaptations for incorporating lamps, radio sets, bars, telephones, ventilation, heating or cooling arrangements or the like
• CPC Class Codes: A61H 1/005 Moveable platforms, e.g. vibrating or oscillating platforms for standing, sitting, laying or leaning
• CPC Class Codes: A61H 2201/0138 incorporated in furniture
• CPC Class Codes: A61H 2201/0149 Seat or chair
• CPC Class Codes: A61H 23/0263 using rotating unbalanced masses

Abstract

A seat cushion pad adapted for use over a seat cushion or against a back cushion. The pad is provided with a motor-driven vibration generator of the unbalanced motor type. The motor has a housing to which is coupled one end of an undulatory spring, which extends from the motor housing substantially throughout the area of the pad, acting as a vibration-transmitting device which transmits vibration throughout the area of the pad and to the body of a user sitting or leaning thereon. The end of the spring opposite from that coupled to the motor housing is free or unanchored, so that the vibration amplitude of the spring is not restricted and reduced to zero by an end anchorage.

Claims

1. A vibratory cushioned pad for use between a vehicle seat back and the back of a user, comprising:

a generally rectangular flexible pad having outside covers, and layers of padding inside thereof;

a motor having a shaft carrying an unbalanced rotor and a support frame for said motor vibratory in response to vibration of said unbalanced rotor, said motor support frame being located at least partially inside said pad adjacent one end thereof;

a spring wire vibration transmitter also inside said pad, between said layers of padding, and comprising a vibratory spring wire having a portion coupled to said vibratory motor frame, and leading therefrom to a vibratoryfree-end extremity movable between said layers of padding, said spring wire having an undulatory configuration from said vibratory support frame to said free-end, so as to encompass a substantial area of said pad, said wire transmitting vibrations from said vibratory support frame along said wire via said undulatory configuration and entirely to said free-end thereof and thus throughout said area and the padding adjacent thereto.