Abstract: A flooring assembly includes a base for supporting at least one flooring element. A pin is secured to the base and extends from the upper surface of the base. The pin has a body portion adjacent to the base and a head portion extending upwardly from the body portion. The head portion has a lower head surface. A recess is formed in a flooring element. A collar is positioned adjacent to the recess. The collar has an inner diameter that is less than a diameter of the recess. The collar has an upper collar surface configured to engage the lower head surface to limit a vertical motion of the flooring element with respect to the base when a central vertical axis of the pin is laterally offset from a central vertical axis of the recess. In some embodiments, petals secured in the recess are used instead of a collar.

Abstract: A flooring assembly includes a base for supporting at least one flooring element. A pin is secured to the base and extends from the upper surface of the base. The pin has a body portion adjacent to the base and a head portion extending upwardly from the body portion. The head portion has a lower head surface. A recess is formed in a flooring element. A collar is positioned adjacent to the recess. The collar has an inner diameter that is less than a diameter of the recess. The collar has an upper collar surface configured to engage the lower head surface to limit a vertical motion of the flooring element with respect to the base when a central vertical axis of the pin is laterally offset from a central vertical axis of the recess. In some embodiments, petals secured in the recess are used instead of a collar.