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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0633351 (1975-11-19) |
발명자 / 주소 |
|
출원인 / 주소 |
|
인용정보 | 피인용 횟수 : 17 인용 특허 : 0 |
A crawler type vehicle has unique means for connecting roller frames with associated track to the car body for mechanical movement of the roller frames and associated track outwardly from the vehicle for selectively providing a wider work base for the vehicle. The connecting means of a construction
In a crawler type vehicle having a main frame rotatably connected to an undercarriage, said main frame having a power unit, a cab, and a boom connected thereto and said undercarriage having a car body, first and second roller frames connected on opposed sides of the car body, and first and second co
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