Plunger for a plunger matrix mattress

U.S. Patent 9,226,591

Issued January 5, 2016

Abstract

A plunger for a matrix mattress includes a pin guide having a flange and a guide body extending from the flange. A pin slidably received within the pin guide includes a flange located above the flange of the pin guide and a shaft extending from the flange through the guide body. The flange of the pin carries a deformable head. A tension spring has a first end fixed to the guide body and a second end located below the guide body positioned to receive a bottom end of the pin shaft. The spring is configured to resiliently stretch with downward motion of the pin with respect to the pin guide. A dampening device captured around the shaft of the pin between the flange of the pin and the flange of the pin guide resiliently deforms with downward motion of the pin with respect to the pin guide.