|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||172/22 ; 172/97|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 47 인용 특허 : 4|
A walk-behind turf aerating apparatus includes two pairs of tine arm assemblies, each assembly having a pair of vertically reciprocating tine arms for driving coring tines into the turf. A tine arm return mechanism includes a gear box for each pair of tine arms, the lower ends of the tine arms being connected to cranks extending from the gear box to reposition the tine arms prior to ground engagement. Stops are provided to limit the tine arm travel. A spring-loaded lifting mechanism permits manual shifting of the tine arm mechanism from a lowered ground-...
Turf aerating apparatus comprising a frame, means supporting said frame for rolling movement across a turf area, means for driving said supporting means to move said frame across the turf, two aerator mechanisms mounted on said frame, each said aerator mechanism comprising at least one pair of substantially vertical tine arms, each said tine arm having at least one downwardly directed turf coring tine disposed on the lower end thereof, each said aerator mechanism including tine arm actuating means connected to the upper end of each said tine arm for impa...