Electric curtain opening and closing device and curtain opening and closing method using the same

An electric curtain opening and closing device comprising:

• a curtain rail which has a hollow portion that is hollow extending in a longitudinal direction, one face constituting the hollow portion including an opening opened in the longitudinal direction, and in which a power supply pattern for supplying electricity is arranged on an inner side of any face constituting said hollow portion in the longitudinal direction;
• and
• a movable body which has an electrode in contact with said power supply pattern, an electric motor receiving electricity through the electrode to positively or negatively rotate, and a hanging portion for hanging a curtain, and which moves by being driven by said electric motor;
• wherein said power supply pattern includes:
• a first power supply pattern extending in the longitudinal direction, and having a first conducting portion and a second conducting portion each including a conductor that conducts electricity and a first insulating portion sandwiched between the first conducting portion and the second conducting portion and including an insulator that does not conduct electricity from either one of the first conducting portion and second conducting portion to another of said first conducting portion and second conducting portion;
• and
• a second power supply pattern extending in the longitudinal direction, and having a third conducting portion and a fourth conducting portion each including a conductor that conducts electricity and a second insulating portion sandwiched between the third conducting portion and the fourth conducting portion and including an insulator that does not conduct electricity from either one of the third conducting portion and fourth conducting portion to another of said third conducting portion and fourth conducting portion;
• and
• wherein said electric curtain opening and closing device further comprises:
• a wireless signal transmission device that transmits a wireless signal for controlling movement of said movable body;
• a wireless signal reception circuit that receives the wireless signal transmitted from said wireless signal transmission device;
• a power source that supplies electricity to said power supply pattern;
• and
• a control unit that controls electricity supplied to said power supply pattern from said power source in response to the wireless signal received by said wireless signal reception circuit to control movement of said movable body in a housing of said curtain rail;
• and
• wherein when said movable body is arranged in the hollow portion of said curtain rail, and said hanging portion protrudes from said opening.

An electric curtain opening and closing device, comprising:

• a curtain rail extending in a longitudinal direction and having a length along which the curtain rail is hollow while having an opening into the hollow, the curtain rail having a first face and, an opposing, second face extending in said longitudinal direction within the hollow;
• a first power supply pattern comprising a first conducting portion extending in said longitudinal direction along said first face and spanning a first length portion of the curtain rail and a second conducting portion extending in said longitudinal direction along said second face and spanning said first length portion of the curtain rail;
• a second power supply pattern comprising a third conducting portion extending in said longitudinal direction along said first face and spanning a second length portion of the curtain rail and a fourth conducting portion extending in said longitudinal direction along said second face and spanning said second length portion of the curtain rail;
• a first insulating portion extending in said longitudinal direction along said first face;
• a second insulating portion extending in said longitudinal direction along said second face;
• wherein said first length portion and said second length portion do not overlap along said first face, are not co-extensive along said first face, and are separated in said longitudinal direction along said first face by said first insulating portion;
• wherein said first length portion and said second length portion do not overlap along said second face, are not co-extensive along said second face, and are separated in said longitudinal direction along said second face by said second insulating portion;
• a first movable body movable within the hollow of the curtain rod, and comprising a first electric motor, a first electrode and a second electrode, the first electrode being in contact with said first conducting portion of said first power supply pattern and the second electrode being in contact with said second conducting portion of said first power supply pattern;
• a second movable body movable within the hollow of the curtain rod, and comprising a second electric motor, a third electrode and a fourth electrode, the third electrode being in contact with said third conducting portion of said second power supply pattern and the fourth electrode being in contact with said fourth conducting portion of said second power supply pattern;
• a first fitting coupled to the first electric motor, protruding through said opening in said curtain rod, and adapted to be coupled to a first portion of said electric curtain, the first fitting being moved by said first electric motor relative to said curtain rail in either one of a first direction or an opposite, second direction;
• and
• a second fitting coupled to the second electric motor, protruding through said opening in said curtain rod, and adapted to be coupled to a second portion of said electric curtain, the second fitting being moved by said second electric motor relative to said curtain rail in either one of said first direction or said second direction.