Patent ID: 8919454
Filing Date: 2014-12-30
Classification: A01B

Abstract:
1. A weeding device, comprising: a plurality of comb blade members in each of which a first comb member and a second comb member, in each of which a plurality of comb blades are provided in a comb shape and in a line on a connecting rod, are combined, wherein the plurality of comb blades are stationary with respect to the connecting rod; a comb blade member rotating member including a pair of rotational plates holding both ends of the connecting rods of the first comb member and the second comb member, included in each of the plurality of comb blade members, such that the ends of the connecting rods are movable in a longitudinal direction of the connecting rod; and a guide plate which is stationary with respect to the comb blade member rotating member; wherein the connecting rod of the first comb member and/or the second comb member is urged in the longitudinal direction at an end thereof so that a protruding piece is formed on one end thereof so that the protruding piece passes through the rotational plate and protrudes towards the guide plate; a surface of the guide plate to which the protruding piece contacts is formed in a shape with projections and recesses, and with rotation of the rotational plate, the protruding piece is pressed by the guide plate and the connecting rod of the first comb member and/or the second comb member is slid in a direction opposite to the urging direction so that the comb blades provided in line on the first comb member and the second comb member contact or become the closest to each other and hold growing grass with further rotation of the rotational plate, the held grass is pulled out; and with further rotation of the rotational plate, the pressing of the protruding piece by the guide plate is released and the connecting rod of the first comb member and/or the second comb member is slid in the urging direction so that the blades of the first comb member and the second comb member separate from each other.