| 摘要 |
A component feeding device transports a tape (a component feeding tape) in which electronic components are stored with some transportation means, and exposes the components. Transportation of the component feeding tape may be performed by fitting a sprocket with a feed hole of the component feeding tape. In the present invention, it has been found that sprocket does not necessarily fit with the feed hole of the component feeding tape. More specifically, it has been found that this phenomenon takes place in a case of driving at least two or more sprockets with a driving means exemplified by a motor. When the sprocket does not fit with the feed hole, transportation of the tape is not correctly performed, but exerts an undesirable influence such as reduction of mounting efficiency on feeding of the components and subsequent mounting of the components. Consideration regarding this point is not sufficient in the prior art. One feature of the present invention resides in rendering a backlash of an upstream-side sprocket larger than a backlash of a downstream-side sprocket. |
