|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||280/1214 ; 280/714 ; 280/21A|
|발명자 / 주소|
|인용정보||피인용 횟수 : 5 인용 특허 : 5|
A vehicle for travel over ice and snow. The vehicle has steerable runner or ski means and a driving or traction wheel for producing traction. The traction wheel is selectively retractable from the surface over which the vehicle is travelling. The drive means for retracting the traction wheel are the same means which transmit power to the traction wheel. The vehicle is also equipped with multiple-point braking means.
A vehicle for travel over ice or snow covered terrain including supporting frame means, and terrain engaging means mounted upon said frame means, steering means for controlling the direction of travel of said vehicle, braking means for slowing said vehicle, traction means for propelling said vehicle upon said terrain, retraction means for moving said traction means into and out of engagement with said terrain, drive means for transmitting power to said traction means to propel said vehicle, said drive means also transmitting motive power to said retracti...