|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||280/4721 ; 280/4726 ; 280/4733 ; 280/38|
|§371/§102 date||19910403 (19910403)|
|발명자 / 주소|
|인용정보||피인용 횟수 : 13 인용 특허 : 0|
A wheel support structure for a cart, such as a wheelbarrow. The structure includes two separate wheel axis each carrying a wheel. Each wheel axis is mounted on a holding arm, which is pivotable 180 degrees about a vertical frame portion, whereby the pair of wheels can be shifted between inner and outer positions. Upper and lower plate members, forming bearing flange members, are fastened to the vertical frame portion and to a vertical stud portion of the holding arm, respectively, and are selectively securable to each other in order to lock the associat...
A wheel support structure for a cart having a supporting frame, the wheel support structure comprising two separate wheel axes (10, 11) each carrying a wheel (8, 9), each wheel axis being mounted on a holding arm (16) which is pivotable about a substantially vertical frame portion (14) pivoting 180°in a horizontal plane so as to enable selective positioning of each wheel in either one of an inner and an outer position (8, 8′, 9, 9′) relative to the longitudinal central plane (C) of the cart, characterized in that: (a) each pivotable holding arm (16) is s...