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US 10,757,279 B2Granted
Sheet stacker and image forming apparatus
AssigneeRicoh Company, Ltd.
InventorDaikai Zaitsu
Life of this patent
Estimating the term…
Abstract
A sheet stacker includes a sheet adjuster movable to regulate a position of a sheet in the sheet stacker, an operation portion to release the sheet adjuster when the operation portion moves in a predetermined direction, and a lock movable together with the sheet adjuster and the operation portion to regulate a movement of the operation portion in the predetermined direction.
Claims15
A sheet stacker comprising:
- a sheet adjuster movable to regulate a position of a sheet in the sheet stacker;
- an operation portion to fix or release the sheet adjuster with respect to the sheet stacker upon the operation portion moving in a first direction;
- and
- a lock, disposed in the sheet adjuster and movable together with the sheet adjuster and the operation portion, to regulate a release operation of the operation portion in the first direction, orthogonal to a moving direction of the sheet adjuster,
- the operation portion, being configured to release fixation of a side fence, and the lock, being further configured to regulate operation of the operation portion, being disposed at a same position, in a height direction of the side fence,
- wherein the lock is configured to move between a first position, at which the lock does not contact the operation portion, and a second position, at which the lock contacts the operation portion;
- and
- wherein the lock at the first position is configured to allow movement of the operation portion in the first direction, and wherein the lock, at the second position, is configured to inhibit the movement of the operation portion in the first direction.
5 more elements
A sheet stacker, comprising:
- a sheet adjuster movable to regulate a position of a sheet in the sheet stacker;
- an operation portion to release the sheet adjuster upon the operation portion moving in a first direction;
- a lock, movable together with the sheet adjuster and the operation portion, to regulate a movement of the operation portion in the first direction;
- a guide rail to guide the sheet adjuster, the guide rail including a slit extending along a direction of movement of the sheet adjuster;
- a support shaft disposed on the sheet adjuster;
- a pivot member, being pivotable around the support shaft and supported by the support shaft, the pivot member including the operation portion and a pawl portion, configured to fit the slit on a side opposite the operation portion, with respect to the support shaft;
- an urging member to urge the pivot member and to cause the pawl portion to fit into the slit;
- and
- a pivot shaft disposed on the sheet adjuster and supporting the lock,
- wherein the lock is rotatable around the pivot shaft and opposed to a front end of the operation portion in the first direction.
7 more elements
Dependencies are inferred from the claim text.