Bracket and onboard device attachment structure

1. An elongated plate-shaped resin bracket for fixing an onboard device to a window glass employed in a vehicle, the bracket comprising:

a plurality of bracket pieces, each configured to be adhered to the window glass;

a coupling portion configured to couple together adjacent bracket pieces of the bracket pieces so as to allow relative movement therebetween; and

an engaging portion provided at each of the bracket pieces so as to enable a plurality of engagement portions provided at the onboard device to engage with the respective engaging portions, wherein:

the adjacent bracket pieces and the coupling portion are molded together as an integral unit,

the coupling portion extends from one to another of the bracket pieces, as viewed from a thickness direction of the bracket, and

an extension direction central portion of the coupling portion is a curved portion that is curved so as to arch toward a width direction of the bracket and capable of elastic deformation.

2. The bracket of claim 1 , wherein a thickness of the curved portion that is capable of elastic deformation is smaller than a thickness of the bracket pieces.

3. The bracket of claim 1 , wherein adjacent bracket pieces of the bracket pieces are coupled together by a plurality of the coupling portions.

4. The bracket of claim 2 , wherein adjacent bracket pieces of the bracket pieces are coupled together by a plurality of the coupling portions.

5. The bracket of claim 1 , wherein:

adjacent bracket pieces of the bracket pieces are coupled together by a plurality of the coupling portions, which have the same shape as each other; and

adjacent coupling portions of the coupling portions are disposed symmetrically with each other.

6. The bracket of claim 2 , wherein:

adjacent bracket pieces of the bracket pieces are coupled together by a plurality of the coupling portions, which have the same shape as each other; and

adjacent coupling portions of the coupling portions are disposed symmetrically with each other.

7. An onboard device attachment structure, comprising:

an elongated plate-shaped resin bracket for fixing an onboard device to a window glass employed in a vehicle, the bracket including:

a plurality of bracket pieces, each configured to be adhered to the window glass;

a coupling portion configured to couple together adjacent bracket pieces of the bracket pieces so as to allow relative movement therebetween; and

an engaging portion provided at each of the bracket pieces so as to enable a plurality of engagement portions provided at the onboard device to engage with the respective engaging portions, and the bracket being adhered to the window glass; and

an onboard device that is provided with an engagement portion configured to engage with the engaging portion of the bracket, and that is attachable to the bracket, wherein:

the coupling portion extends from one to another of the bracket pieces, as viewed from a thickness direction of the bracket, and

an extension direction central portion of the coupling portion is a curved portion that is curved so as to arch toward a width direction of the bracket and capable of elastic deformation.

8. The onboard device attachment structure of claim 7 , wherein:

the onboard device comprises a stereo camera configured to image an area ahead of the vehicle;

the plurality of bracket pieces included in the bracket are adhered to the front glass of the vehicle in a state arrayed along a vehicle width direction; and

a plurality of the engagement portions provided at the stereo camera are configured to engage with the engaging portions provided at the respective bracket pieces.