Component mounting structures

A device comprising:

• first and second members opposed to each other in a first direction;
• a component having an axial direction, wherein the first direction is the axial direction;
• a fitting device comprising a fitting hole and a mount shaft configured to be able to be fitted into the fitting hole, and constructed to fit the component with the first member in the first direction, so that the component is fixed in position relative to the first member with respect to a second direction that intersects with the first direction;
• and
• a joint device constructed to join the component to the second member with the mounting position of the component adjusted with respect to the second direction;
• wherein the second direction is substantially perpendicular to the first direction;
• wherein the component includes a flat mount surface and the second member includes a flat support surface, the mount surface and the support surface contacting with each other in the first direction;
• wherein the mount surface and the support surface extend parallel to each other in the second direction, so that the mount surface and the support surface can slide relative to each other along the second direction;
• wherein the joint device comprises a fastener having a shank, an insertion hole formed in the component and extending in the first direction, and a joint hole formed in the second member and configured to be joined to the shank, so that the fastener is not movable relative to the second member in the second direction;
• and
• wherein the shank of the fastener is loosely inserted into the insertion hole, so that a clearance is formed between the shank and an inner wall of the insertion hole in the second direction.