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US 5,970,866 AGranted
Printing machine with sound reducing apparatus
AssigneeTohoku Ricoh Co., Ltd.
InventorEiji Okawa
Life of this patent
Estimating the term…
Abstract
A printing machine comprising a sheet feeding station for feeding sheets into a printing station and capable of being detachably attached into a sheet inlet, a sheet discharging station for discharging printed sheets from the printing station and positioned near a sheet outlet, and a cover disposed near at least the sheet inlet or the sheet outlet and shielding either the sheet inlet or sheet outlet except for at a sheet passing area thereof.
Claims8
A printing machine having a body, comprising:
- a) a sheet feeding station for feeding sheets into a printing station, said sheet feeding station including an inlet-side side cover having an opening therein defining a sheet inlet;
- b) a sheet discharging station for discharging printed sheets from the printing station and positioned near a sheet outlet;
- c) a sound reducing cover disposed near the sheet inlet and shielding the sheet inlet except for a sheet passing area thereof;
- wherein the sheet feeding station includes a sheet tray which is inserted in the sheet inlet so as to be vertically movable in a direction orthogonal to a sheet feeding direction;
- and
- wherein the sound reducing cover is attached to the inlet-side side cover and extending downwardly therefrom into said sheet inlet so as to be disposed above the sheet tray for shielding a space above a top sheet on the sheet tray with a space of 2-5 mm maintained between the top sheet and the sound reducing cover.
3 more elements
A printing machine having a body, comprising:
- a) a sheeting feeding station for feeding sheets into a printing station, said sheet feeding station including an inlet-side side cover having an opening therein defining a sheet inlet;
- b) a sheet discharging station for discharging printed sheets from the printing station and positioned near a sheet outlet;
- c) a sound reducing cover disposed near the sheet inlet and shielding the sheet inlet except for a sheet passing area thereof;
- wherein the sheet feeding station includes a sheet tray which is inserted in the sheet inlet so as to be vertically movable in a direction orthogonal to a sheet feeding direction;
- and
- wherein the sound reducing cover is attached to the inlet-side side cover and extending downwardly therefrom into said sheet inlet so as to be disposed above the sheet tray for shielding a space above a top sheet on the sheet tray with a space of 2-5 mm maintained between the top sheet and the sound reducing cover;
- wherein the sound reducing cover includes means for allowing the sound reducing cover to be opened and closed.
4 more elements
A printing machine comprising:
- a) a sheet feeding station for feeding sheets into a printing station and being attached in a sheet inlet;
- b) a sheet discharging station for discharging printed sheets from the printing station and positioned near a sheet outlet;
- c) a sound reducing cover disposed near at least one of the sheet inlet and the sheet outlet and shielding at least one of the sheet inlet and the sheet outlet except for a sheet passing area thereof;
- wherein the sheet feeding station includes a sheet tray which is inserted in the sheet inlet so as to be vertically movable in a direction orthogonal to a sheet feeding direction;
- and
- wherein the sheet feeding station includes a lower sound reducing cover for shielding a space under the sheet tray, and further wherein said lower sound reducing cover is mounted such that at least a portion of said lower sound reducing cover is moveable in response to the movement of the sheet tray.
3 more elements
A printing machine comprising:
- a) a sheet feeding station for feeding sheets into a printing station and being attached in a sheet inlet;
- b) a sheet discharging station for discharging printed sheets from the printing station and positioned near a sheet outlet;
- c) a sound reducing cover disposed near at least one of the sheet inlet and the sheet outlet and shielding at least one of the sheet inlet and the sheet outlet except for a sheet passing area thereof;
- wherein the sheet feeding station includes a sheet tray which is inserted in the sheet inlet so as to be vertically movable in a direction orthogonal to a sheet feeding direction;
- and
- wherein the sheet tray includes a pair of slidable side plates which hold opposite side edges of sheets on the sheet tray and are movable in a width direction of sheets in accordance with the size of sheets;
- and further
- wherein the sheet feeding station includes a pair of side sound reducing covers for shielding spaces outside the slidable side plates and wherein at least part of said pair of side sound reducing covers is mounted so as to be movable in response to the movement of the slidable side plates.
5 more elements
Dependencies are inferred from the claim text.