| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a semi-automatic simple electric ventilator for a greenhouse having a simple structure and operation, and employ a motor as a rotary power for a sheet scrolling shaft. <P>SOLUTION: The simple electric ventilator for a greenhouse is structured as follows: connecting one end part of a sheet scrolling shaft where the lower part of a covering sheet for opening and closing the opening part of the greenhouse is scrolled, to an output shaft of a deceleration mechanism, and an input shaft of the deceleration mechanism to the output shaft of a motor so that the rotary power can be transmitted; assembling the deceleration mechanism and the motor to a guide mechanism; and combining the guide mechanism which guides the deceleration mechanism and the motor to a moving direction of the sheet scrolling shaft opening and closing the opening part of the greenhouse without rotating them together with the sheet scrolling shaft to be obsequiously moved. In the device, an on/off switch for normal rotation and reverse rotation of a power circuit through which the motor and a power supply are connected to each other, are provided at a position within the user's reach. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
