US 7,069,870 B2 · Electric sewing machine

Abstract

Disclosed is the invention in connection with an electric sewing machine comprising a machine body 1 and a controller 2, wherein the controller 2 is responsive to a first press to produce a signal for starting the machine body 1 and is responsive to further press to produce a signal for driving the machine body 1 at a stitching speed (drive speed) in accordance with the pressing amount. The machine body 1 is provided with a control device 11 which is connected to a changing device 30 which is operated to change the control content of the control device 11. The changing device 30 may be operated to switch the control device 11 between being operative and being inoperative. In case the control device 11 is switched to being inoperative, the control device 11 neglects the instruction signal from the controller 2, for example, produces a stop signal to a motor drive device 12 in response to a machine drive signal from the controller 2, thereby to maintain the machine motor as stopped. Therefore, if the changing device 30 is selectively operated beforehand to switch the controller 11 to being inoperative, the machine body 1 will not driven in response to the instruction signal from the controller 11 which may be wrong operated. Thus the safety may be secured.

Claims18

Dependent claims

An electric sewing machine comprising;

a machine body,
a wireless controller which may be electrically connected to said machine body wirelessly and producing an instruction signal,
a receiver means provided on said machine body and receiving the instruction signal from said wireless controller,
a control means provided on said machine body for controlling the operation of said machine body in response to the instruction signal received at said receiver means,
a means provided on said machine body for changing, by operation of a machine operator, the control content of said control means for controlling the operation of said machine on the basis of the instruction signal.

2 more elements

An electric sewing machine comprising;

a machine body,
a wireless controller electrically connected to said machine body wirelessly and operated to produce a machine control signal,
an output means provided on the side of said wireless controller to produce a signal for identifying said wireless controller,
a transmission means provided on the side of said wireless controller to transmit said machine control signal and said wireless controller identifying signal to said machine body,
a receiver means provided on the side of said machine body to receive said machine control signal and said wireless controller identifying signal from said wireless controller,
an input means provided on the side of said machine body to receive by wire said wireless controller identifying signal from said output means,
a register means provided on the side of said machine body to register therein said wireless controller identifying signal which is received by said input means from said output means by wire,
a detecting means provided on the side of said machine body to compare said wireless controller identifying signal registered in said register means and said wireless controller identifying signal received from said receiver means, said detecting means neglecting said machine control signal from said wireless controller in case said identifying signal registered in said register means and said wireless controller identifying signal received from said receiver means are out of accord.

5 more elements

An electric sewing machine comprising;

a machine body,
a wireless controller connected to said machine body wirelessly and producing an instruction signal,
a receiver means provided on the side of said machine body to receive the instruction signal from said wireless controller,
a control means for controlling the operation of sewing machine on the basis of the instruction signal received by said receiver means,
a means for changing the control content of said control means for controlling the operation of sewing machine on the basis of the instruction signal,
an output means provided on the side of said wireless controller to produce a signal for identifying said wireless controller,
a transmission means provided on the side of said wireless controller to transmit said wireless controller identifying signal to said machine body,
a receiver means provided on the side of said machine body to receive said wireless controller identifying signal,
an input means provided on the side of said machine body to receive by wire said wireless controller identifying signal from said output means,
a register means provided on the side of said machine body to register therein said wireless controller identifying signal which is received by said input means from said output means by wire,
a determining means provided on the side of said machine body to compare said wireless controller identifying signal registered in said register means and said wireless controller identifying signal received from said receiver means, said detecting means neglecting said machine control signal from said wireless controller in case said wireless controller identifying signal registered in said register means and said wireless controller identifying signal received from said receiver means are out of accord.

8 more elements

Dependencies are inferred from the claim text.

Electric sewing machine

Life of this patent

Electric sewing machine

Life of this patent

Abstract

Claims18