Patent ID: 6946811

Claim:
An entrapment detecting device for an opening/closing member comprising: a driving means for driving an opening/closing member so as to be moved for opening/closing an opening defined in a fixed member; and a controlling means for detecting, on a basis of a driving condition of the driving means, an object entrapment between the fixed member and the opening/closing member while the opening/closing member is moving to close the opening; the controlling means: memorizing in advance, while a predetermined condition is satisfied, a reference load data corresponding to a load applied to the opening/closing member that is closing the opening; calculating, after memorizing the reference load data and during another movement of the opening/closing member in a direction for closing the opening, a driving data representing the driving condition of the driving means; calculating an abnormality detecting data by subtracting from the driving data the reference load data memorized in advance; and judging, on the basis of the abnormality detecting data, whether an object has been entrapped between the opening/closing member and the fixed member.