Device for detecting position and load of a moving object

A device for detecting position and load of a moving object, for detecting a position of movement of a moving object which moves in forward and reverse directions and for detecting a load applied to the moving object, said device comprising:

• a pulse generator connected to the moving object and always generating pulses in connection with movement of the moving object;
• a pulse detector detecting the pulses generated by said pulse generator;
• and
• a control circuit detecting, on the basis of a number of pulses generated by said pulse generator, the position of movement of the moving object, and detecting, on the basis of a pulse width of the pulses generated by said pulse generator, the load applied to the moving object.

A device for detecting position and load of a moving object for detecting a position of movement of a moving object connected to an output shaft of a motor which rotates in forward and reverse directions and for detecting load applied to the moving object, said device comprising:

• a disk-shaped pulse plate at which recessed and protruded pulse generating portions are provided consecutively at predetermined intervals, said pulse plate being connected to the output shaft and operatively connected to rotate together with the output shaft and generate pulses;
• a pulse detector disposed so as to correspond to the pulse generating portions of said pulse plate, for detecting pulses generated by the pulse generating portions as the output shaft rotates;
• and
• a control circuit for detecting the position of movement of the moving object based on a number of pulses detected by said pulse detector, and for detecting the load applied to the moving object based on a pulse width of the pulses detected by said pulse detector.

A device for detecting position and load of a moving object, for detecting a position of movement of a moving object which moves in forward and reverse directions and for detecting a load applied to the moving object, said device comprising:

• a pulse generating means connected to the moving object for always generating pulses in connection with movement of the moving object;
• a pulse detecting means for detecting the position of movement of the moving object based on a number of the pulses detected by the pulse detecting means;
• and
• a load detecting means for detecting the load applied to the moving object based on a change in the pulses detected by said pulse detecting means.

A power window apparatus having a load detecting means for detecting a load applied to a window which moves in forward and reverse directions, said apparatus comprising:

• a reduction gear portion contained in a housing for reducing rotation of a motor to transmit power to the window;
• a pulse generating means for receiving torque through a shaft from said reduction gear portion and for rotating therewith;
• a pulse detecting means mounted to a cover plate covering an opening portion of the housing for detecting the pulses generated by said pulse generating means;
• a load detecting means for detecting the load applied to the window based on the pulses detected by said pulse detecting means;
• and
• a partitioning means having a through-hole of the shaft transmitting torque from said reduction gear portion to said pulse generating means for partitioning said pulse generating means and said reduction gear portion.

A power window apparatus having means for detecting position and load of a window, for detecting a position of movement of the window which moves in forward and reverse directions and for detecting a load applied to the window, said apparatus comprising:

• a reduction gear portion contained in a housing for reducing rotation of a motor to transmit power to the window;
• a pulse generating means for receiving torque through a shaft from said reduction gear portion and for rotating therewith;
• a pulse detecting means mounted to a cover plate covering an opening portion of the housing for detecting the pulses generated by said pulse generating means;
• a control circuit for detecting, based on the pulses detected by said pulse detecting means, the position of movement of the window and the load applied to the window;
• and
• a partitioning means having a through-hole of the shaft transmitting torque from said reduction gear portion to said pulse generating means for partitioning said pulse generating means and said reduction gear portion.

A power window apparatus having means for detecting position and load of a window, for detecting a position of movement of the window which moves in forward and reverse directions and for detecting a load applied to the window, said apparatus comprising:

• a reduction gear portion contained in a housing for reducing rotation of a motor to transmit power to the window;
• a pulse generating means for receiving torque through a shaft from said reduction gear portion and for rotating therewith;
• a pulse detecting means mounted to a cover plate covering an opening portion of the housing for detecting the pulses generated by said pulse generating means;
• and
• a control circuit for detecting, based on the pulses detected by said pulse detecting means, the position of movement of the window and the load applied to the window, wherein
• said pulse generating means is mounted via a base plate which has a through-hole of the shaft transmitting torque from said reduction gear portion to said pulse generating means and which covers the opening portion of the housing.