In one example, a device for unwinding or winding multiple rolls of print substrate includes multiple spindles each to hold a roll of print substrate and a differential operatively connected to one end of each spindle. The spindles are aligned with one another lengthwise along a spindle axis and the differential is to output torque along a differential axis offset from the spindle axis to turn the spindles on the first axis.

A film roll compatible with a wrap dispenser comprising a core with a first end with a notch, a second end with a notch, an outer surface and a lumen, a stretch film wrapped around the core, a wrap dispenser comprising a first frame member and a second frame member, a handle connecting the first frame member to the second frame member, a first roller operationally associated with a second roller with each being connected to the first frame member and the second frame member, an upper boss secured to the first frame member with one or more lugs emanating out of the upper boss, a boss handle operationally associated with the upper boss allowing for the raising and lowering of the upper boss, and a lower boss secured to the second frame member with one or more lugs emanating out of the lower boss.

A belt replacement device may include: a base portion having a belt placed thereon, the belt being wound in a roll shape; a rotating portion mounted on the base portion, and rotating the belt wound in a roll shape; a transporting portion holding and transporting the belt passed through the rotating portion; a guide portion guiding the belt discharged through the transporting portion; and a loading portion to which the belt dropped from the guide portion is loaded, and the belt replacement device can improve winding workability for the belt.

There is provided an image recording apparatus having a housing having a front wall and a rear wall, and a right wall and a left wall defining an internal space of the housing, a sheet roll holder configured to hold a sheet roll, a supporting member configured to support the sheet roll, the supporting member extending in an axial direction of the sheet roll and being supported by the sheet roll holder, a sheet conveyer arranged in an internal space of the housing, the sheet conveyer being configured to convey a sheet unwound from the sheet roll, and a recording device configured to record an image on the sheet unwound from the sheet roll and conveyed by the sheet conveyer. The sheet roll holder is configured to be slidable with respect to the housing so as to be detachable from and attachable to the housing.

In one example, a device for unwinding or winding multiple rolls of print substrate includes multiple spindles each to hold a roll of print substrate and a differential operatively connected to one end of each spindle. The spindles are aligned with one another lengthwise along a spindle axis and the differential is to output torque along a differential axis offset from the spindle axis to turn the spindles on the first axis.

Dispenser with bearings for dispensing a roll of tension activated expandable sheet material, as well as methods for using the same.

A roll accommodation unit includes: a roll support shaft; a pair of side walls; and a pair of roll bearings that are attached to the pair of side walls, recessed portions are formed at upper ends of the pair of side walls, the pair of rolling bearings are attached to the side walls at positions corresponding to bottoms of the recessed portions such that the rolling bearings project upward beyond inclined surfaces of the recessed portions, the roll support shaft includes a support shaft main body, and a pair of small-diameter portions that are provided at both ends of the support shaft main body, and the roll support shaft is supported with the small-diameter portions abutting on outer circumferential surfaces of the pairs of rolling bearings in a state in which the support shaft main body is located at an interval from the recessed portions.

A reeling shaft transfer rail system has two parallel substantially horizontal or slightly sloped rails for supporting the ends (25) of a reeling shaft (20). Hoses are arranged on each of the transfer rails (15) and filled or drained to move and hold the reeling shaft (20). In a method of transferring reeling shafts on transfer rails, the reeling shafts (20) are transferred on two parallel, substantially horizontal or slightly downstream of a main transfer direction inclined transfer rails (15) for supporting each of the supporting ends (25) of a reeling shaft (20). The reeling shafts (20) are transferred or positioned in the reeling shaft transfer rail system (10) by pressurizing hoses (17) arranged on each of the transfer rails. The hoses are arranged so fluid added to or withdrawn from the hoses pushes or holds the reeling shaft (20) on the transfer rails (15).

To provide a spindle supporting a roll body on which a sheet-shaped medium is wound and rotationally driving the roll body. The spindle includes a shaft member to be inserted into the roll body, a gear fixed on a tip side of the shaft member in an axial direction, a spacer member contacting both of the shaft member and the gear, and a coupling member coupling the shaft member to the gear. In the axial direction of the shaft member, a contact area of the spacer member and the gear is larger than a contact area of the shaft member and the spacer member. The gear is coupled to the coupling member in the axial direction and the shaft member is coupled to the coupling member in an intersecting direction intersecting the axial direction.

A waste disposal device comprises a container having an opening at a top end, the container defining an inner cavity accessible through the opening. A bag interface at the opening is adapted to hold a bag opened at the opening of the container with a closed end of the bag extending in the inner cavity. A pair of doors is pivotally connected to the container to open and close access through the opening and adapted to close off a portion of the bag passing therebetween, the doors being pivotable from a closed position in which the doors meet to close the access through the opening, to a first pivoted position in which the doors are pivoted away from the inner cavity, and wherein One of both doors is or are pivotable to a second pivoted position toward the inner cavity. An actuation mechanism operatively connected to at least one of the doors to bias the at least one of the doors to the closed position.