Device for preventing slipping of vehicle

A device for preventing slipping of a vehicle, comprising:

• a plurality of spikes each having on a medial portion thereof an insert part bent in a V shape such that the insert part is inserted into a space between tires of a double wheel, and contact parts integrally extending from respective opposite ends of the insert part, the contact parts being flush with each other to be brought into contact with surfaces of the respective tires, with a rigid protrusion formed on each of the contact parts;
• a connection member connecting the insert parts of the spikes to each other;
• and
• a fastener, including:
• a catch having on a first end thereof, a connection end coupled to a first end of the connection member, and an insert end on a second end thereof opposite the connection end, with a plurality of locking holes formed in the catch between the connection end and the insert end, the locking holes being arranged in a row;
• and a clamp coupled to a second end of the connection member, so that the catch is inserted into and locked to the clamp, wherein each of the spikes has a bent portion on a junction between the insert end and each of the contact parts, the bent portion having a radius of curvature ranging from 3 cm to 4 cm, and the clamp comprises:
• a ‘U’-shaped clamp body, into which the insert end of the catch is inserted;
• a guide pin provided in a first end of the clamp body such that a guide space for guiding the insert end of the catch inside the connection member is defined in the clamp body by the guide pin;
• a first rotating pin provided behind the guide pin in the clamp body in a direction across the clamp body;
• a locking hook fitted over the first rotating pin so as to be rotatable upwards or downwards, the locking hook being hooked to one of the locking holes to prevent the catch from being removed from the clamp body;
• a coupling unit provided in a second end of the clamp body, the coupling unit having a rotating pin provided in the second end of the clamp body, and a coupling ring rotatably fitted over the second rotating pin, the coupling ring being connected to the second end of the connection member;
• a torsion spring fitted over the second rotating pin of the coupling unit, the torsion spring supporting on a first end thereof an upper surface of the locking hook while a second end thereof is fastened to the clamp body;
• and a latch unit provided radially outwardly of the locking hook to prevent a locked state of the locking hook from being released because of vibration or tensile force of the connection member, wherein when the catch is inserted into the clamp and locked to the locking hook, the clamp guides the catch such that the insert end of
• the catch is disposed inside the second end of the connection member, thus preventing the catch from being damaged.