Patent ID: 8584433

Claim:
A structure for installing an insert nut in a panel, in which an insert nut in which a female screw is formed is provided in a panel member constituted from a core member with a honeycomb structure and from first and second surface plates made from fiber reinforced plastic fixedly attached to two sides of the core member, at a position in the core member where the insert nut is provided, the core member is replaced with a reinforcing member having a strength and a stiffness greater than that of the core member, and the insert nut is inserted into and housed in a hole in the reinforcing member from a hole in the first surface plate, a first end surface in the axial direction where the female screw is open is made coplanar with the first surface plate, and the insert nut is fixedly attached to the reinforcing member with an adhesive, wherein a first metal plate is fixedly attached sandwiched between the first surface plate and the reinforcing member, the insert nut is inserted into the hole in the first surface plate, a hole in the first metal plate, and the hole in the reinforcing member, which are provided coaxially, and fixedly attached with the adhesive, and in a state where the insert nut is fixedly attached with the adhesive, an inner circumferential surface of the hole of the first metal plate and an outer circumferential surface of the insert nut are in contact.