Document Type and Number:
Japanese Patent JPH0121921
Kind Code:
B2
Abstract:
Cultivating tines, each having opposite cutting edges, are pivotably supported by tine mount members on a tine shaft reversibly rotatable about a horizontal lateral axis. One of the cutting edges of the tine is retainable in a position rearward with respect to the direction of forward rotation, while the other cutting edge is retainable in a position rearward with respect to the direction of reverse rotation. When held in each of these positions, the tine is restrained by resistant force imparting means from being pivotally moved by a centrifugal force. The resistant force to be imparted by this means is smaller than the reaction to be produced when the tine is driven into the soil.
Inventors:
SAITO TARO
UMEKI KAZUMI
OONO TAKAAKI
SAKANE HIROSHI
TSUJINO KIMIHIDE
MIHIRA KEIICHI
NAGAMINE YOSHIFUMI
SATO YOSHITAKA
UMEKI KAZUMI
OONO TAKAAKI
SAKANE HIROSHI
TSUJINO KIMIHIDE
MIHIRA KEIICHI
NAGAMINE YOSHIFUMI
SATO YOSHITAKA
Application Number:
JP19501182A
Publication Date:
April 24, 1989
Filing Date:
November 06, 1982
Export Citation:
Assignee:
KUBOTA LTD
International Classes:
A01B33/10; A01B33/02; A01B33/14
Next Patent: JPH0121922