Abstract:
An image reading apparatus having a conveyed document reading function and a placed document reading function includes: a moving mechanism for moving an imaging unit; a hinge mechanism for swingably connecting a document cover to a document platen; a conveyance mechanism provided to the document cover for conveying a document upon operation of the conveyed document reading function; a driving force transmission mechanism for selectively transmitting a driving force generated from a driving source to the moving mechanism or the conveyance mechanism; a first gear rotatable by receiving the driving force from the driving force transmission mechanism; and a second gear rotatable with being meshed with the first gear for transmitting the driving force to the moving mechanism or the conveyance mechanism, a rotating center line of which coincides with a swinging center line of the hinge mechanism.
Abstract:
An image reading apparatus comprising: an imaging unit; a moving mechanism moving the imaging unit between a first position and a second position; a conveyance mechanism; a sun gear; a planetary gear that rotates by being meshed with the sun gear and having a rotation center configured to revolve around the sun gear; a first output gear meshed with the planetary gear and transmits a driving force to the moving mechanism; a second output gear meshed with the planetary gear and transmits a driving force to the conveyance mechanism; a load generation part increasing a rotational resistance of the first output gear when the imaging unit is located at the first position, and a meshing part being meshed with teeth of the planetary gear when the planetary gear revolves around the sun gear.
Abstract:
An image reading device is provided, which includes a controller configured to, when a carriage reaches a turn-around position in a moving direction, control a motor to once stop, then rotate in a second direction opposite to a first direction such that a planetary gear swings to a position separated from an output gear and that an intermediate gear moves to an engagement position to engage with the output gear, and thereafter again rotate in the first direction so as to transmit a driving force from the motor to the output gear via an input gear, a planetary gear, and the intermediate gear.
Abstract:
A fan motor includes: a single-phase stepping motor including a stator excited by applying an electric current to a coil to function as a single-phase magnetic pole, and a rotor which has a permanent magnet magnetized to a single phase and rotates as the magnetic pole of the stator changes; an impeller which is rotated by a rotating shaft of the rotor; and a drive circuit for controlling an application of a current to the coil. The drive circuit applies pulse voltage to the coil and the coil constant is set so that a mean value of the current applied to the coil is 10 mA or smaller.
Abstract:
This invention provides a compact, flat axial fan which is not limited by the shape of an incorporated rotor magnet and ensures a sufficiently large air flow and wind pressure, wherein the slide (under) piece of a mold that forms the under-molding portions of the vanes of the impeller of the axial fan is pulled out while being twisted (while performing a helical motion) in the direction of central axis of the base portion of the impeller, so that the mold can be formed simple to realize a multi-cavity mold, and the vanes can be formed into an ideal form by setting vane angles depending on different rotating peripheral velocities of the vanes, so that air can be supplied form the under-molding portions of the vanes to the vanes on the outer circumferential side during rotation of the impeller, a method of manufacturing an impeller for the axial fan, and a mold for manufacturing the impeller of the axial fan. For this purpose, in an axial fan comprising an impeller integrally formed, by resin molding, with a plurality of vanes extending from a bottomed cylindrical body to which a rotary axial support shaft body is formed at a center of rotation, each of the vanes is integrally formed by resin molding with a main vane extending from an outer circumferential surface of the bottomed cylindrical body at a predetermined tilt angle.
Abstract:
A sheet conveying device to convey a sheet in a sheet path is provided. The sheet conveying device includes a separator roller, which is arranged to be rotatably in contact with the sheet to apply conveying force to the sheet, a pad assembly including a separator pad, which is arranged to be in contact with the sheet stack to apply convey resistance to the sheet stack, and a holder, which is swingably attached to a base member and holds the separator pad, the base member being in a fixed position with respect to the separator roller, a spring, which urges the pad assembly toward the separator roller, and a slidable member, which is attached to the pad assembly to be integrally movable with the pad assembly and to be slidably in contact with a first slidable section in the base member.
Abstract:
A document feeding device for feeding documents comprises a document input tray on which documents to be fed are placed, a document output tray to which the documents are ejected, and a feeding mechanism which is provided for a feeding path connecting the document input tray and the document output tray via a scanning position and feeds each document from the document input tray to the scanning position and from the scanning position to the document output tray. The document output tray includes a tray part which holds the ejected documents, a projecting part which pushes up a part of the ejected documents on the upstream side in a feeding direction and thereby lifts an upstream end of the ejected documents, and a pressing member which makes contact with the ejected documents from above at a position on the downstream side of the projecting part's apex in the feeding direction.
Abstract:
A sheet ejector, configured to eject sheets so as to insert a later-ejected sheet under an earlier-ejected sheet on a catch tray, includes a feed roller provided to the catch tray, wherein the feed roller is configured to feed, in a predetermined ejecting direction, the later-ejected sheet that is inserted under the earlier-ejected sheet, and a switching mechanism configured to switch a state of the feed roller relative to a sheet on the catch tray between a contact state where the feed roller contacts the sheet on the catch tray and a non-contact state where the feed roller is kept from contacting the sheet on the catch tray.
Abstract:
A document feeding device comprises a document input tray, a document output tray placed above the document input tray, and a feeding mechanism provided for a feeding path (connecting the document input tray and the document output tray via a scanning position) to feed each document along the feeding path. The document output tray includes a reference tray and a pivoting tray (on the downstream side of the reference tray) pivotable with respect to the reference tray around a pivot shaft on the upstream side of the pivoting tray. The pivoting of the pivoting tray is restricted at a retracted position by a pivot restricting part when the pivoting tray has pivoted from a document stacking position to the retracted position. The pivot shaft is situated above an upstream end of a stacking surface of the pivoting tray when the pivoting tray is placed at the document stacking position.