Racket and grommet

1. A tennis racket comprising:

a grip;

an annular frame;

a shaft coupling the grip and the frame together;

wherein a projection is provided to an outer peripheral face on a leading end half of the frame in a predetermined range including a location of maximum curvature in a peripheral direction;

wherein the projection has a width in the peripheral direction wider at a position at a central side of the projection in a thickness direction, which is orthogonal to a hitting face formed inside the frame, than at a position at an end side of the projection in the thickness direction; and

wherein:

a grommet is attached to an outer periphery of the frame; and the grommet includes a recess configured to fit together with the projection of the frame on a back face of the grommet, which is a side of the grommet opposing the frame, and includes a protrusion formed to correspond to the recess on a front face of the grommet, which is the opposite side to the back face.

2. A tennis racket comprising:

a grip;

an annular frame;

a shaft coupling the grip and the frame together;

wherein a projection is provided to an outer peripheral face on a leading end half of the frame in a predetermined range including a location of maximum curvature in a peripheral direction;

wherein the projection has a width in the peripheral direction wider at a position at a central side of the projection in a thickness direction, which is orthogonal to a hitting face formed inside the frame, than at a position at an end side of the projection in the thickness direction;

wherein a height of the projection is 0.5 mm or lower; and

wherein:

a grommet is attached to an outer periphery of the frame; and the grommet includes a recess configured to fit together with the projection of the frame on a back face of the grommet, which is a side of the grommet opposing the frame, and includes a protrusion formed to correspond to the recess on a front face of the grommet, which is the opposite side to the back face.