SHEET CONVEYING DEVICE, SHEET FEEDER, AND IMAGE FORMING APPARATUS

摘要

A sheet conveying device includes a primary sheet guide including a bending portion to bend a sheet while the sheet slides over the bending portion to change a sheet conveyance direction and a secondary sheet guide disposed opposite the primary sheet guide with an interval between the primary sheet guide and the secondary sheet guide. A noise attenuator intakes and attenuates slide noise generated by the bending portion while the sheet slides over the bending portion. The noise attenuator includes a resonant cavity disposed opposite an outer face of one of the primary sheet guide and the secondary sheet guide. A sound inlet is disposed in proximity to the bending portion and intakes the slide noise generated by the bending portion. A sound guide communicates with the sound inlet and the resonant cavity to guide the slide noise from the sound inlet to the resonant cavity.

主权项

1. A sheet conveying device comprising:
a conveyer to convey a sheet; a primary sheet guide including a bending portion to bend the sheet while the sheet slides over the bending portion to change a sheet conveyance direction; a secondary sheet guide disposed opposite the primary sheet guide with an interval between the primary sheet guide and the secondary sheet guide; and a noise attenuator to intake and attenuate slide noise generated by the bending portion while the sheet slides over the bending portion, the noise attenuator including:
at least one resonant cavity disposed opposite an outer face of one of the primary sheet guide and the secondary sheet guide;at least one sound inlet, disposed in proximity to the bending portion, to intake the slide noise generated by the bending portion; andat least one sound guide communicating with the sound inlet and the resonant cavity to guide the slide noise from the sound inlet to the resonant cavity.