Patent ID: 8141605

Claim:
A vehicle slipping prevention device, comprising: a plurality of spikes 10 formed of an insertion member 12 of which an intermediate portion is V-shaped for being inserted into a space formed between double wheels 16 and a close contact member 14 which is flat-contacted with both sides of the insertion member 12 for a close contact with the surface of each tire of the double wheels 16 ; a connection means 30 which connects the insertion member 12 of the spikes 10 ; and, an engaging member which engages both ends of the connection means 30 ; wherein said engaging member 700 includes: an engaging member 701 which has an engaging hook member 701 b of which one end is formed of an insertion member 701 a , and the other end is connected to the connection means 30 , with a plurality of engaging holes 701 c being formed between the engaging hook member 701 b and the insertion member 701 a in a row; an engaging body 702 which has a bottom piece 702 b formed of an engaging hook member 702 a connected with the connection means 30 at one end in a U shape so that the insertion member 701 a of the engaging member 701 is inserted, a fixing pin hole 702 d for engaging a fixing pin 702 c with respect to the engaging hook member 702 a at both sides of the bottom piece 702 b , a body 702 g in which rotation pin holes 702 f engaged with a rotation pin 702 e are sequentially formed on a wall plate 702 g ′, and an engaging piece 702 j which is fixed at an upper side of the rotation pin 702 e and is connected with a tensional spring 702 h connected with the fixing pin 702 c and performs a rotation and return operation, and is formed of an engaging member 702 i which is downwardly protruded for an engagement by the engaging hole 701 c ; and a connection ring 703 which is provided at each end of the connection means 30 for connecting the engaging hook member 701 b of the engaging member 701 and the engaging hook member 702 a of the engaging body 702 .