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Daisuke Murakami, Tokyo JP

Daisuke Murakami, Tokyo JP

Patent application numberDescriptionPublished
20090050728Seat belt retractor and seat belt apparatus - A seatbelt retractor integrated with an electronic control unit. A motor is disposed above both side walls of a frame and on the same side as a spool with respect to a back board. The motor is detachably fixed to at least one of the back board and the both side walls and of the frame. The ECU is detachably mounted to an upper stay extending upward from the back board of the frame and to be mounted to the vehicle body. In this manner, the motor and the ECU are integrated with a seatbelt retractor. Since the ECU is mounted to the upper stay, the weight of the ECU is dispersed not only to the main body of the seatbelt retractor but also to the upper stay. Thus, the vibration of the seatbelt retractor may be reduced.02-26-2009
20090051156Seat belt retractor and seat belt apparatus - A seat belt retractor including an integral electronic control unit (ECU). The ECU is detachably installed between lower edges of respective both side walls of a frame. Further, a motor is detachably fixed to a lower surface of a case of the ECU. Since the ECU is disposed between the frame and the motor, the ECU can be protected from an external force by means of the frame and the motor.02-26-2009
20090051157Seat belt apparatus and seat belt retractor - A seat belt retractor includes a frame having a back plate and a side wall protruding from each of a plurality of side edges of the back plate. The seat belt retractor also includes a spool supported by the frame and rotating to wind a seat belt, a motor for rotating the spool, and an electronic control unit for controlling the drive to the motor. The electronic control unit is attached to a surface of the frame in a direction of a vehicle interior.02-26-2009
20090058062Seat belt apparatus and seat belt retractor - A seat belt retractor includes a frame having a back plate and a side wall protruding from each of multiple side edges of the back plate. The seat belt retractor also includes a spool supported by the frame and configured to rotate and wind a seat belt, a motor configured to rotate the spool, and an electronic control unit configured to drive and control the motor. The electronic control unit is mounted between the side walls of the frame and the back plate is disposed in an inner space of a vehicle body member and faces a vehicle interior direction.03-05-2009
20090058063Seat belt retractor and seat belt apparatus - A seat belt retractor includes at least one frame having a back board and side walls extending from side rims of the back board, a spool supported by the at least one frame configured to wind up a seat belt, a motor configured to rotate the spool, and an electronic control unit mounted to the frame for controlling the driving of the motor. The electronic control unit includes a base, an electronic control unit board fixed to the base, and a cover attached to the base to cover the electronic control unit board. The electronic control unit includes an opening at a lower end that opens an interior of the electronic control unit to an exterior.03-05-2009
20090243367SEAT BELT WINDING METHOD, SEAT BELT RETRACTOR, AND SEAT BELT APPARATUS - [PROBLEMS] To provide a seat belt winding method, a seat belt retractor, and a seat belt apparatus capable of stopping the motor even when the seat belt is being wound and restarting the winding of the seat belt, and capable of reducing excess repetition of stopping and starting of the motor.10-01-2009
20100001503Seat belt apparatus and seat belt control method - [Problems] To allow an occupant to easily wear a seat belt without twisting his or her body when the occupant sits in a seat.01-07-2010
20100117438Seatbelt device - A seatbelt device comprising a seatbelt, a spool for retracting the seatbelt, and a motor for rotating and driving the spool. The seatbelt device further includes urging means for urging the seat belt in a retracting direction, first retracting means for starting retracting of the seatbelt by the urging means, and second retracting means for starting the retracting of the seatbelt by the motor. The second retracting means starts the retracting of the seatbelt if, after the retracting of the seatbelt by the first retracting means is started, a retracting speed thereof is at a predetermined value or less and the retracting of the seatbelt has not been stopped.05-13-2010
20100121533Seatbelt control apparatus - A seatbelt apparatus including a seatbelt, a spool for retracting the seatbelt, a motor for rotatably driving the spool, and urging mechanism for urging the seatbelt toward a retracting direction. The seat belt apparatus further includes belt attaching/detaching mechanism, a belt releasing detecting mechanism and, and a motor controller. The belt attaching/detaching mechanism fastens or releases the seatbelt. The belt releasing detecting mechanism detects that the seatbelt is released from the belt attaching/detaching mechanism. The motor controller causes the motor to start to take up the seatbelt on the condition that a predetermined amount of time passes since the belt releasing detecting mechanism detects that the seatbelt is released.05-13-2010
20100125392Seatbelt control apparatus - A seatbelt control apparatus including seatbelt control means that controls a motor for retracting a seatbelt; and motor current detecting means that detects a current of the motor. The seatbelt control apparatus further includes jamming determination means, indicator detecting means, and threshold value setting means. The jamming determination means determines whether or not the seatbelt is jammed during take-up operation on the basis of whether or not the motor current detected by the motor current detecting means exceeds a threshold value for jamming determination. The indicator detecting means detects an indicator of a current versus load characteristic of the motor. The threshold value setting means sets the threshold value for jamming determination on the basis of the indicator detected by the indicator detecting means.05-20-2010
20100140913SEAT BELT RETRACTOR AND SEAT BELT APPARATUS PROVIDED THERWITH - A seat belt retractor (06-10-2010
20110018330Seat belt apparatus and seat belt retractor - A seat belt retractor includes a frame having a back plate and a side wall protruding from each of multiple side edges of the back plate. The seat belt retractor also includes a spool supported by the frame and configured to rotate and wind a seat belt, a motor configured to rotate the spool, and an electronic control unit configured to drive and control the motor. The electronic control unit is mounted between the side walls of the frame and the back plate is disposed in an inner space of a vehicle body member and faces a vehicle interior direction.01-27-2011

Patent applications by Daisuke Murakami, Tokyo JP