A sheet feeding device, which is included in an image forming apparatus, includes a roller detachably attached to the image forming apparatus and configured to feed a sheet in a sheet conveying direction, a shaft configured to engage with the roller and transmit a driving force to the roller, a movable body configured to rotate in a direction of rotational axis and includes a holding portion configured to engage with the second engaging portion of the roller and rotatably hold the roller and a guide configured to guide attachment of the second engaging portion of the roller to the holding portion, and a biasing body configured to apply a biasing force and bias the movable body from a drive receiving side to a drive transmitting side.

A receiving device that is connected to a sheet processing device to receive a sheet comprising: a receiving port that receives the sheet discharged from a discharge port of the sheet processing device: casters that support the receiving device on a floor; and a roller that rides up a support part provided with the sheet processing device at the time of connecting the receiving device and the sheet processing device to receive a part of the weight of the receiving device on the support part, wherein when the roller rides up the support part, a part of the casters floats up from the floor, and the receiving port is positioned to the discharge port.

An adhesive tape dispenser having a guide function includes a handle, a retaining frame, a tape cutting unit, a guide unit, and a tape holding unit. The retaining frame is disposed on the handle. The retaining frame has a pair of vertical plates. The tape cutting unit has a roller and a blade that are located between the vertical plates. The guide unit has a pair of guide plates located outside the respective vertical plates. The guide plates each have a fastener for securing the guide plates to the respective vertical plates. The tape holding unit is configured to install an adhesive tape roll. Guide members of the guide plates are able to be in close contact with both sides of wooden planks, so as to achieve the effect of sticking the adhesive tape centrally.

A roll transfer device is provided, which makes it convenient to perform a centering work of a roll stocked in a left or right eccentric state to increase reliability of the centering work of the roll. The roll transfer device comprises a plurality of frame units constituting an external appearance; a pair of holding units spaced apart from each other in a first direction inside the frame unit, supporting a roll core seated thereon; a pair of elevating units disposed on both upper sides in the first direction inside the frame unit to elevate a roll in a second direction and connected to each other by a first plate; a pair of alignment units provided on the first plate and disposed on both sides in the first direction to align a position of the roll in the first direction; and a pair of transfer units transferring the roll, in which the roll core is seated on the pair of holding units, in a third direction by simultaneously moving the pair of holding units in the third direction, wherein the pair of alignment units linearly move along the first direction with different strokes to align the roll, in which the roll core is seated on the pair of holding units, in the first direction while being eccentric along the first direction.

Disclosed is an automatic electrode plate leading apparatus for secondary batteries which, when an arm descends, vacuum-adsorbs and grips a barcode part of a standby electrode plate and then rises in the state in which an EPC sensor and a replacement preparation core move backwards, a first roller moves right, a third roller descends and second rollers rise, automatically connects the electrode plate vacuum-adsorbed and gripped by the arm to the replacement preparation core in the state in which the first roller moves left, the second rollers descend, the third roller rises and the EPC sensor and the replacement preparation core move forwards. The automatic electrode plate leading apparatus includes a standby electrode plate (1), an EPC sensor (2), a first roller (3), second rollers (4), a third roller (6), the arm (8) rotated to rise or descend by an arm drive motor (11), and a replacement preparation core (7).

Provided is a printing apparatus for performing printing on a sheet drawn out from a roll including: a roll holding unit configured to hold the roll; a support unit configured to rotatably support the roll holding unit; a core portion provided to the roll holding unit and configured to be inserted into a hollow portion of a core pipe of the roll from an end portion of the core pipe to extend along an axis of the core pipe; a contact member provided to the core portion and configured to be put in contact with an inner wall surrounding the hollow portion of the core pipe; and a cam member disposed inside the core portion and configured to pivot to a first position where the contact member is pressed onto the inner wall and to a second position where the contact member is retracted from the inner wall.

A medium conveying apparatus includes: a housing having an engaged portion and a guide surface; a placement tray having an engaging portion and a placement surface; and a side guide mounted on the placement surface and protruding downstream beyond the placement tray to restrict a medium in a width direction. The engaged portion restricts entry or removal of the engaging portion when the placement surface forms a first angle with the guide surface, and allows entry or removal of the engaging portion when the placement surface forms a second angle different from the first angle with the guide surface in attachment of the placement tray to the housing or detachment of the placement tray from the housing. A downstream end of the side guide in the conveying direction does not intersect with the guide surface as viewed from the width direction when the placement surface forms the second angle.

An image forming apparatus includes an ejection port, a stacker, a fan, and a duct. From the ejection port, a sheet is ejected to an ejection space in an ejection direction. The stacker stacks the sheet ejected from the ejection port, and the ejection space is disposed above the stacker. The fan is disposed outside the ejection space to suck air. The duct is connected to the fan. The duct has an exhaust port and a guide. The exhaust port is disposed above the ejection port and downstream from the ejection port in the ejection direction to exhaust the air from the exhaust port toward an upper face of the sheet in the ejection space. The guide connects the fan and the exhaust port to guide the air from the fan to the exhaust port.

Disclosed is a drawing apparatus including: a base member; and a drawing member that is attached so as to be capable of being drawn and pressed in a reciprocating direction with respect to the base member, wherein the base member has a couple application mechanism that applies a couple for correcting skewing of the drawing member with respect to the reciprocating direction to the drawing member as a reaction of a force by which the drawing member is pressed, and wherein the couple application mechanism is configured so that a distance between action lines of two forces generating the couple becomes large as a pressing amount of the drawing member with respect to the base member increases.

A winch system for tightening and tensioning barrier cables for cable barrier systems includes a fairlead vertically movable with respect to the winch assembly. The winch system is connected to a base frame that can be attached to a vehicle for moving and for providing power to the winch and movement of the fairlead. The vertically movable fairlead allows each barrier cable to be positioned and tensioned while supported by the post of the cable barrier system to avoid damage to the posts and negatively impacting the operational strength of the cable barrier system.