| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a rotary type intermediate column locking device which can be simply installed on the rear body of a truck, etc., and is excellent in workability. SOLUTION: A hook 33 and an intermediate column 43 are installed on the front surface of a floor frame 30. The intermediate column 43 is rotatable in the vertical direction, and a stationary link 44 is hung at the column 43. The ink 44 is furnished with a cutout 45 to admit protrusion of the hook 33 in a position the hook 33 collides with when the column 43 is raised upright. One end of a lever 37 is attached to under the hook 33, and the two ends of a locking piece 41 in channel shape are attached to the lever 37 in its middle position. When the column 43 is raised upright and locked, the hook 33 protrudes from the cutout 45, and the locking piece 41 is fitted at the hook 33 and the lever 37 is turned backward to interior side. The lever 37 is drawn toward the operator to put off the locking piece 41, and it is possible for the column 43 to be rotated downward.</p> |
