Abstract: A second stacker is provided with base-end projection portions and leading-end projection portions that protrude outward in the width direction from the second stacker from both sides of the second stacker at the base end of the second stacker in the pull-out direction thereof. A first stacker is provided with guide rails on which the stated projection portions slide when the second stacker is pulled out; contact portions that do not make contact with and allow the leading-end projection portions to pass when the second stacker is pulled out but prevent the base-end projection portions from passing; and a support portion that supports the leading-end projection portions when the base-end projection portions are in contact with the contact portions.

Abstract: A first stacker is configured so that a support surface includes a base-side support surface that forms a planar shape on the base end side of the support surface and a leading edge-side support surface that forms a planar shape that tilts upward toward the leading edge. A second stacker is configured so that a support surface forms a planar shape, and is held in a tilted orientation during use so that the support surface of the second stacker continues to the leading edge of the second stacker in the same upward-tilted state with respect to the leading edge-side support surface of the first stacker.

Abstract: A second stacker is provided with base-end projection portions and leading-end projection portions that protrude outward in the width direction from the second stacker from both sides of the second stacker at the base end of the second stacker in the pull-out direction thereof. A first stacker is provided with guide rails on which the stated projection portions slide when the second stacker is pulled out; contact portions that do not make contact with and allow the leading-end projection portions to pass when the second stacker is pulled out but prevent the base-end projection portions from passing; and a support portion that supports the leading-end projection portions when the base-end projection portions are in contact with the contact portions.

Abstract: A first stacker is configured so that a support surface includes a base-side support surface that forms a planar shape on the base end side of the support surface and a leading edge-side support surface that forms a planar shape that tilts upward toward the leading edge. A second stacker is configured so that a support surface forms a planar shape, and is held in a tilted orientation during use so that the support surface of the second stacker continues to the leading edge of the second stacker in the same upward-tilted state with respect to the leading edge-side support surface of the first stacker.