| 摘要 |
PROBLEM TO BE SOLVED: To solve problems that there is no degree of freedom in a conventional guide roller and a mounting means thereof, smooth operations cannot be expected in a curtain driving shaft guide mechanism, damage is caused or trouble is developed in curtain mounting operations when a transverse shift or transverse shaking is caused in a curtain driving shaft member by a temperature change or a wind, etc., or the position of the curtain driving shaft member is regulated, etc., in the transverse direction during mounting of a curtain in an apparatus, etc., for opening and closing the greenhouse curtain. SOLUTION: This allowable guide apparatus for the greenhouse curtain or the like is obtained by installing a guide roller 55 of the curtain driving shaft member 31 so as to move through >=10% distance of the transverse width of the curtain driving shaft member 31 in the longitudinal direction of a roller shaft 53 accompanying the curtain driving shaft member 31. |
