검색연산자 | 기능 | 검색시 예 |
---|---|---|
() | 우선순위가 가장 높은 연산자 | 예1) (나노 (기계 | machine)) |
공백 | 두 개의 검색어(식)을 모두 포함하고 있는 문서 검색 | 예1) (나노 기계) 예2) 나노 장영실 |
| | 두 개의 검색어(식) 중 하나 이상 포함하고 있는 문서 검색 | 예1) (줄기세포 | 면역) 예2) 줄기세포 | 장영실 |
! | NOT 이후에 있는 검색어가 포함된 문서는 제외 | 예1) (황금 !백금) 예2) !image |
* | 검색어의 *란에 0개 이상의 임의의 문자가 포함된 문서 검색 | 예) semi* |
"" | 따옴표 내의 구문과 완전히 일치하는 문서만 검색 | 예) "Transform and Quantization" |
국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) | B62D-055/04 |
미국특허분류(USC) | 180/921 ; 180/926 ; 305/16 ; 305/35R |
출원번호 | US-0332087 (1981-12-18) |
발명자 / 주소 | |
인용정보 | 피인용 횟수 : 57 인용 특허 : 0 |
A shaft 12 is secured to and is rotatable with a wheel hub of a vehicle. A sprocket wheel 22 is secured to and rotates with the shaft 12 and has evenly spaced apart, tooth-receiving sockets 28 at its periphery. The shaft 12 is mounted on the upper portion of a track supporting frame 42 by a pillow block mount 52 on each side of the sprocket wheel 22. Each mount 52 has housed within it bearing means 54 surrounding the shaft 12. Idler wheels 44 are mounted on the lower portion of the frame 42. An endless track 82 extends about the sprocket wheel 22 and the...
A track laying attachment comprising: a shaft having inner and outer ends and a mounting flange at its inner end adapted to be secured to a wheel hub of a vehicle, so as to be rotatable with the wheel hub, said outer end of the shaft being threaded; a sprocket wheel secured to the shaft, so as to rotate with the shaft, said sprocket wheel comprising evenly spaced apart, tooth-receiving sockets at its periphery bounded by bearing surfaces; a track supporting frame including an upper portion and a lower portion; mounting means for mounting the shaft on the...