| 摘要 |
PROBLEM TO BE SOLVED: To allow a child to feel secured to execute travel training without imparting the anxiety resulting from the looseness of auxiliary wheels, and wholly dispense with height adjustment in such an occasion of installing the auxiliary wheels again.SOLUTION: An installation device A for installing an auxiliary wheel on both sides of a rear wheel 3 comprises an installation metal fitting A1 and connection means A2 and a base member 4 for installing the installation metal fitting A1 on both sides of the rear wheel 3, and comprises locking parts 6 and 7 in upper-lower positions of both sidewall parts of the base member 4, and the locking parts 6 and 7 comprise a shaft insertion port part on an outward release edge of both sidewall parts. A tail end shaft locking part respectively turned in the wall width direction of both sidewall parts from the shaft insertion port part, is provided in the direction for mutually separating in the length direction of both sidewall parts from an opening position of the shaft insertion port part; the connection means A2 is upper and lower shaft members 20 and 21 composed of the fixed side and the movable side non-separably locked on the shaft locking part by being respectively inserted from the shaft insertion port part; and the movable side shaft member 21 can move in the length direction of wheel stay 2, and is urged so as to be drawn near in the shaft locking part direction. |
