| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a connection mechanism of a carriage to a driving wheel unit capable of easily and surely connecting a carriage and a driving wheel unit at a single operation without needing high attention degree.SOLUTION: A connection mechanism of a carriage to a driving wheel unit is provided with: a connection plate 21 provided at the side of connection arm 20 of the driving wheel unit 10 so that a carriage 30 and the unit 10 are connected; a connection plate-receiving part 31 provided by being fixed to the side of the carriage 30; and a pressure-receiving spring member 40 including so that a required wheel pressure generates to a wheel 11. The connection plate 21 is provided in a vertically standing plate form. The upper edge of the plate 21 has a tapered claw 22 formed so as to get thin upward by forming the side of a surface facing a carriage 30 side to a slant 22a, and a groovy claw-receiving part 32 formed in a downward groovy shape is provided on the upper part of the connection plate-receiving part 31 so that the tapered claw 22 is fitted and received.</p> |
