|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||280/9 ; 280/24 ; 280/4322 ; 280/4324|
|발명자 / 주소|
|인용정보||피인용 횟수 : 15 인용 특허 : 0|
A convertible sled is disclosed for use on snow as well as surfaces devoid of snow. The sled comprises a pair of runners rigidly secured to the underside of the sled and three pivotal wheels. The first, front wheel is secured to a rotatable rod extending longitudinally and centrally under the front portion sled. Linkage means connects this rod to two other rods each longitudinally rotatably disposed adjacent one of the runners. An operating lever easily accessible at the front of the sled and secured to the first named rod serves to pivot all three wheel...
A convertible sled comprising an elongated seat; two longitudinally spaced-apart supports rigidly secured to the underside of said seat; a pair of laterally spaced-apart runners rigidly secured in turn to the lower portions of said supports; a plate extending vertically and downwardly from the front of said seat; a first rod extending through and journalled in a hole provided therefor in said plate at its front end and also extending through and journalled in another hole provided therefor in the frontmost support at its rear end; a second and a third ro...