|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||172/21 ; 172/42 ; 172/95 ; 172/97|
|우선권정보||GB-0014861 (1988-06-22); GB-0001260 (1989-01-20)|
|발명자 / 주소|
|인용정보||피인용 횟수 : 42 인용 특허 : 0|
A lawn treatment apparatus includes an open-bottomed support body having three treatment implements in the form of spiking devices or brushing/sweeping devices adapted to move through the open bottom. The support body carries a driving mechanism to drive the treatment implements with a combination of vertical and horizontal oscillations. A biasing mechanism is provided normally to hold the implement in a vertical attitude or substantially so when stationary.
A ground treatment apparatus, comprising: a support body having an open bottom; at least one treatment implement supported by said support body and being movable through said open bottom of said support body, said at least one treatment implement having an implement head extending vertically; driving means carried by said support body for driving said treatment implement in a cyclical path relative to said support body, said cyclical path including both vertical and horizontal movement; said driving means including (a) a connecting link having a first en...