Sheet Feeding Apparatus Size Detection Mechanism

The invention extracts and eliminates the complex link mechanism and drive mechanism from the sheet size detection system. Instead of using a mechanical push switch actuation system, the patent directly uses the position of the regulating member itself to indicate sheet size, removing unnecessary intermediate components while preserving the detection function.

The regulating member serves dual functions: it both regulates the sheets during feeding and simultaneously indicates the sheet size through its position. This multi-functionality eliminates the need for separate detection mechanisms, reducing overall system complexity while maintaining accurate sheet size detection capability.

The invention removes the expensive link mechanism and drive mechanism components, significantly reducing the bill of materials and manufacturing cost. The simplified structure requires fewer parts to manufacture, assemble, and maintain, directly addressing the cost concern while preserving detection accuracy.

The patent employs a simpler, more economical detection approach that replaces expensive mechanical linkages with a direct position-indicating system. This uses fewer, cheaper components that are easier to manufacture and replace if needed, reducing overall system cost.

By extracting and removing the link mechanism and drive mechanism, the patent significantly reduces the spatial requirements of the detection system. The eliminated components occupied considerable volume, and their removal allows for a more compact overall apparatus design while maintaining full detection functionality.

The regulating member performs both sheet regulation and size indication functions in a single integrated component, eliminating the need for separate detection mechanisms that would increase apparatus volume. This multi-functional approach enables compact design without sacrificing detection precision.