Pressure sensitive sensor, object detecting device and opening, attachment structure thereof and opening-and-closing device

An object detecting device comprising:

• a pressure sensitive sensor provided in at least one of an opening section and an opening-and-closing section for opening and closing the opening section and serving to detect pinching of an object between the opening section and the opening and closing section based on an output signal generated by deformation upon receipt of external force, said pressure sensitive sensor including:
• pressure sensitive means for generating an output signal corresponding to deformation;
• and
• support means for supporting the pressure sensitive means on at least one of the opening section and the opening and closing section;
• the support means including at least a first deformation section having a first elastic modulus and serving to increase deformation of the pressure sensitive sensor;
• and
• a second deformation section having a second elastic modulus which is higher than the first elastic modulus;
• and
• deciding means for deciding presence of a contact of an object with the pressure sensitive sensor based on a signal output from the pressure sensitive sensor.

An object detecting device comprising:

• a pressure sensitive sensor provided in at least one of an opening section and an opening and closing section for opening and closing the opening section and serving to detect pinching of an object between the opening section and the opening and closing section based on an output signal generated by deformation upon receipt of external force;
• and
• deciding means for deciding presence of a contact of the object with the pressure sensitive sensor based on a signal output from the pressure sensitive sensor;
• wherein the pressure sensitive sensor includes pressure sensitive means for generating an output signal corresponding to deformation and support means for supporting the pressure sensitive means on at least one of the opening section and the opening and closing section, and
• the deciding means outputs a decision signal when the signal output from the pressure sensitive means reaches a preset first change amount, and holds the decision signal until the signal output from the pressure sensitive means which has a different polarity from the polarity of the output signal has a preset second change amount or more after the decision signal is output.

An opening and closing device comprising:

• an object detecting device comprising:
• a pressure sensitive sensor provided in at least one of an opening section and an opening and closing section for opening and closing the opening section and serving to detect pinching of an object between the opening section and the opening and closing section based on an output signal generated by deformation upon receipt of external force;
• and
• deciding means for deciding presence of a contact of the object with the pressure sensitive sensor based on a signal output from the pressure sensitive sensor;
• wherein the pressure sensitive sensor includes pressure sensitive means for generating an output signal corresponding to deformation and support means for supporting the pressure sensitive means on at least one of the opening section and the opening and closing section, and
• the deciding means outputs a decision signal when the signal output from the pressure sensitive means reaches a preset first change amount, and holds the decision signal until the signal output from the pressure sensitive means which has a different polarity from the polarity of the output signal has a preset second change amount or more after the decision signal is output;
• driving means for driving an opening and closing section;
• and
• control means for controlling the driving means to stop a closing operation of the opening and closing section or to cause the opening and closing section to carry out an opening operation when deciding means decides a contact of an object with a pressure sensitive sensor when the opening and closing section carries out the closing operation.