Stress reducing floor surface

摘要: 1,247,575. Mats. BATTELLE DEVELOPMENT CORP. 28 Jan., 1968, No. 4695/69. Heading B5N. [Also in Division A4] A flexible rubber floor mat comprises a base 22 having uniform cylindrical protuberances 21, strips 24 of soft being adhered or vulcanized to the undersurface provide series areas greater and lesser resilient resistance load separated by intermediate so that at each change foot position person walking on is moved through an angle not more than 5 degrees horizontal alleviate strain leg muscles. In modifications, are moulded integrally with formed layer integral border apertures, which may be filled rubber, retained friction beneath base, thickness. further variety lengths thicknesses arranged variation resistance, covering for larger area sections 57 varied length thickness offset portion forming downwardly upwardly facing flanges 60, 61 overlapped when fitted together surrounded complementarily flanged frame 62, 64 provided extending