| 摘要 |
PROBLEM TO BE SOLVED: To provide an opening/closing device improved in conforming the movement speed of a driving machine to that of a winding shaft even when the inclination of a guide pillar is small.SOLUTION: An opening/closing device includes: an opening/closing sheet 1 the one-side end part 1a of which is fixed to a hothouse H; a winding shaft 2 fixed to another-side end part of the opening/closing sheet 1 to wind or rewind the opening/closing sheet 1; a guide pillar 3 disposed on the lateral side of the opening/closing sheet 1 along the moving direction of the winding shaft 2; a driving machine 4 rotationally driving the winding shaft 2; and a moving member 5 moving the driving machine 4 along the guide pillar 3. The driving machine 4 includes: a driving shaft 40 connected to the end part of the winding shaft 2; and a driving machine body 41 rotating the winding shaft 2 via the driving shaft 40. The moving member 5 includes: a slip roller 50 having a rotational center on the rotational center line of the driving shaft 40, relatively rotatable to the driving shaft 40 and abutting on the outer peripheral surface of the guide pillar 3; and at least one driven roller 51 abutting on the outer peripheral surface of the guide pillar 3 at the side of an antislip roller. |
