Patent ID: 8607477

Claim:
A spike device for a sole of an anti-slid shoe, said spike device comprising: a spike and a resilient member, said resilient member being arranged to, when in a stressed state, allow the spike to protrude from the sole of the anti-slid shoe for providing anti-slid properties and to, when reverting to an unstressed state, retract the spike at least partly into the sole; wherein the resilient member comprises an elastic diaphragm having an inner portion and an outer portion surrounding the inner portion, wherein the inner and outer portions are resiliently movable in relation to each other; wherein a spike unit comprising the spike is arranged through an opening in the inner portion of the elastic diaphragm in such a way that the spike protrudes in an axial direction from the elastic diaphragm; wherein the spike unit is arranged to be moveable in an axial direction and to be fixed in relation to the opening in the inner portion of the elastic diaphragm so as to allow the spike unit to move together with the inner portion of the elastic diaphragm; and wherein said spike device further comprises a guiding and supporting member for guiding the axial movement of the spike unit when the inner portion moves in relation to the outer portion.