SHEET CONVEYANCE DEVICE AND IMAGE RECORDING APPARATUS

• Main Author: YAMAGUCHI MASATOMO
• Format: Patent
• Language: English; Japanese
• Published: 05.03.2020
• Subjects: CONVEYING; CORRECTION OF TYPOGRAPHICAL ERRORS; HANDLING THIN OR FILAMENTARY MATERIAL; HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS,CABLES; i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; LINING MACHINES; PACKING; PERFORMING OPERATIONS; PRINTING; SELECTIVE PRINTING MECHANISMS; STAMPS; STORING; TRANSPORTING; TYPEWRITERS

To provide a sheet conveyance device which can easily take out clogged sheets while reducing the sagging of a biasing member for biasing one roller constituting the roller pair toward the other.SOLUTION: A compound machine 10 includes: a first roller 91 and a second roller 92 which are located in a conveyance path 65 of sheets and face each other; a roller holder 87 which rotatably supports the second roller 92 and can rotate between the first position where the second roller 92 contacts the first roller 91 and the second position where the second roller 92 is apart from the first roller 91; a torsion coil spring 88 which biases the roller holder 87 to the first position; and a guide member 85 which can rotate between the close position constituting the conveyance path 65 and the open position for exposing the conveyance path 65 and the roller holder 87 to the outside on the opposite side to the first roller 91 with respect to the second roller 92. The roller holder 87 includes a downstream guide surface 874 which constitutes the conveyance path 65 on the downstream side of the conveyance direction 16 of the sheet with respect to the second roller 92.SELECTED DRAWING: Figure 5 【課題】ローラ対を構成するローラの一方を他方へ付勢する付勢部材のへたりを低減しつつ、詰まったシートを簡単に取り出すことができるシート搬送装置を提供する。【解決手段】複合機１０は、用紙の搬送路６５に位置しており互いに対向した第１ローラ９１及び第２ローラ９２と、第２ローラ９２を回転可能に支持しており、第２ローラ９２が第１ローラ９１に当接した第１位置と、第２ローラ９２が第１ローラ９１から離間した第２位置に回動可能なローラホルダ８７と、ローラホルダ８７を第１位置へ付勢するねじりコイルばね８８と、第２ローラ９２に対する第１ローラ９１の反対側において、搬送路６５を構成する閉位置、及び搬送路６５及びローラホルダ８７を外部に露出する開位置に回動可能なガイド部材８５とを備える。ローラホルダ８７は、第２ローラ９２より用紙の搬送向き１６の下流に、搬送路６５を構成する下流ガイド面８７４を備える。【選択図】図５