Hand and component supply system including same

A hand comprising:

• a claw that grips or releases a workpiece;
• and
• a gripping portion which moves the claw in a gripping direction for gripping the workpiece and in a releasing direction for releasing the workpiece, wherein
• the claw is supported at its base end by the gripping portion so as be movable in the gripping direction and the releasing direction, extends in a longitudinal direction from the gripping portion, and has a gripping surface gripping the workpiece at its tip end,
• the gripping surface has:
• a first inclined surface which extends in an inclined condition in the releasing direction from its base end in the longitudinal direction toward a tip end side in the longitudinal direction;
• and
• a second inclined surface which extends in an inclined condition in the releasing direction from its tip end in the longitudinal direction toward a base end side in the longitudinal direction so as to be continued to the first inclined surface, and
• seen in an orthogonal direction which is orthogonal to each of the longitudinal direction, the gripping direction and the releasing direction, a tip end side angle α between a tip end side virtual line drawn by extending the second inclined surface to the tip end side and a horizontal conveyance surface of the conveyance carrier is set to be smaller than a base end side angle β between a base end side virtual line drawn by extending the first inclined surface to the base end side and a parallel line parallel to the conveyance surface.