Patent ID: 6971158

Claim:
An electric-component mounting system for mounting electric components on at least one circuit substrate, comprising: a plurality of component-mounting devices which are arranged in series with each other and each of which includes a component-holding head operable to hold an electric component, and a head-moving device operable to move said component-holding head; and a substrate-transferring device disposed so as to extend along an array of said plurality of component-mounting devices and operable to move said at least one circuit substrate and stop said at least one circuit substrate at at least one stop position which respectively corresponds to at least one of said plurality of component-mounting devices and at which said at least one component-mounting device mounts said electric components on said at least one circuit substrate, and wherein said substrate-transferring device includes (a) a first transferring device operable to move said at least one circuit substrate, along at least a path from an upstream end to a downstream end of said array of said plurality of component-mounting devices, and stop said at lest one circuit substrate at least once during movement thereof along said path, and (b) a second transferring device comprising a substrate-holding device operable to fixedly hold said at least one circuit substrate at each of said at least one stop position established by said first transferring device, and a holding-device moving device operable to reciprocate said substrate-holding device in a direction of movement of said at least one circuit substrate by said first transferring device, by a maximum distance smaller than a maximum distance of movement of said at least one circuit substrate by said first transferring device, so that said at least one circuit substrate held by said substrate-holding device is moved together with said substrate-holding device.