PROBLEM TO BE SOLVED: To provide a walking-type rice planter which laterally moves a seedling tray by the relative rotation and relative movement of a guide shaft to a transfer member, and which is advantageous in the aspect of the size and weight balance. SOLUTION: This walking-type rice planter has one travel wheel 1, a steering handle 3 disposed behind the travel wheel 1 in the vehicle body; a seedling tray 80 disposed behind the travel wheel 1 in the vehicle body, in a state capable of being moved in the lateral direction of the vehicle body; and a seedling-planting section 8 having two seedling-planting mechanisms 6 arranged in the lateral direction of the vehicle body is such that a lateral seedling-transfer mechanism 100 is arranged and disposed in front of the seedling tray 80, behind a perpendicular line A which passes through the axle axis X of the traveling wheel 1. The outside of the outer periphery of the traveling wheel 1, thereby the lateral seedling-transferring mechanism 100 is moved in a reciprocating manner in the lateral direction of the vehicle body, by driving a guide shaft 102 disposed in the lateral direction of the vehicle body and a transfer member 101 engaged with the guide shaft 102, in a relatively rotatable and relatively slidable state so as to be relatively rotated and imparted a lateral transfer force to the seedling tray 80, to interlock the seedling tray 80 with the seedling-planting movement of the seedling-planting mechanisms 6. COPYRIGHT: (C)2009,JPO&INPIT

Walking-type rice transplanter

Method for controlling width of hot rolling strip steel

PURPOSE:To improve the accuracy in a length from the top of a rolled stock and to reduce variations in the plate width of the stock by measuring slip and grip ratios in an online mode using a detector for the stock top end and correcting calculated slip and grip ratio values. CONSTITUTION:Both the distance LM between a front stage horizontal rolling mill and a detector for the rolled stock top end and the distance LR between the top end bitten by the front rolling mill and the detector are calculated by equation I. A slip ratio ffor is given by equation II based on the distance LM and LR. The distance L3 which the rolled stock advances for a given period of time after the rolling stock is bitten by a back stage rolling mill is obtained by substituting the slip ratio ffor of equation II into f in equation I. A grip ratio fbac is obtained by equation III based on the L3 and the advancing distance L1 of the rolled stock obtained by equation I. The quality of rolled stocks is improved by conduct of the plate width control for a hot strip mill in a feedforward system using the corrected slip and grip ratios.

Morita Shinji

Papers

Plate width control method for hot strip mill