A tire with spikes on the shoulder for the four season including snow and ice road condition

摘要

The present invention relates to a tire in which the spikes installed on the side surface of the tire are grounded and spaced apart from the road surface by adjusting the air pressure, and the tread portion (1), the shoulder portion (2), the side wall portion (3), and the bead portion ( 4), consisting of a shoulder spike (5) installed in the shoulder portion (2), the shoulder spike (5) is grounded on the ground by adjusting the tire air pressure low on a slippery road surface such as snow road and ice road, Increases the friction force to prevent slippage, and on normal roads, the tire pressure is adjusted to the original usual pressure by using a portable air pump, and the tire is returned to its normal side position away from the ground. Can be used as a snow tire attached to the snow tires, and has a function of a regular tire on a general road, Will.