Tire with means for setting out studs at the tire surface, and method

A tire for a wheel of a vehicle, with a profiled tread for supporting the vehicle on the ground, comprising:

• a tire body formed by two opposite side walls and a circumferential wall, wherein the tire body is configured to maintain an adjustable gas pressure in the tire, wherein the circumferential wall is provided with a number of holding spaces;
• a number of tread pattern elements which form at least part of the tread, wherein each of the number of tread pattern elements is accommodated in a holding space of the number of holding spaces so as to be displaceable at substantially right angles to the circumferential wall between a first position, in which it projects from the circumferential wall to a greater degree, and a second position, in which it projects from the circumferential wall to a lesser degree or is accommodated in the circumferential wall;
• and
• an adjustment device which is configured to displace the number of tread pattern elements in the number of holding spaces between the first and second position in order to adjust a tread pattern height of the profiled tread;
• wherein the adjustment device comprises a spring device which is configured with an adjustable spring action, wherein an increase in spring stiffness of the spring device increases an amount of force required to move the number of tread pattern elements from the second position to the first position, and a decrease in spring stiffness of the spring device decreases the amount of force required to move the number of tread pattern elements from the second position to the first position;
• wherein the adjustment device is configured to adjust the degree of the spring action of the spring device, and wherein increasing the spring stiffness corresponds to a decreased tread pattern height and decreasing the spring stiffness corresponds to an increased tread pattern height;
• and
• wherein each of the number of tread pattern elements comprises a tread pattern part and a closing part removably attached to the tread pattern part, the tread pattern part and the closing part when attached forming a passage surrounded by the attached tread pattern part and the closing part, the passage aligned in a circumferential direction of the tire, and the adjustment device positioned in the passage.