To dispense with installation work so as to improve an installation property by providing an adaptor and a transmitting part for driving the adaptor, providing the adaptor with a driving part engaged with a thumb turn, a receiving part for receiving a signal transmitted from the transmitting part, and a power supply part for supplying power to each part, and fitting the adaptor to a door through a fitting base.
An adaptor 1 is provided with a driving part 3 with an engaging part engaged with a thumb turn, a receiving part 4 for receiving a signal transmitted from a transmitting part 2, and a power supply part 5 for supplying power to each part. The transmitting part 2 is provided with a transmitter 6 for sending an opening/closing signal by radio from an antenna 9 to the adaptor 1 by the on-off operation of a switch 8, and a battery 7 to be a power supply. The adaptor 1 is fitted to a door through a fitting base 12.
TERAI HARUO
KOBAYASHI YASUMICHI
NAKATANI TADASHI
HAYASHIDA YUKIO
INOUE TAKAYUKI
| JPH0725175U | ||||
| JPS62169156U | 1987-10-27 | |||
| JPS5555779A | 1980-04-23 | |||
| JPS62190063U | 1987-12-03 |