Document conveying device having clawed elastic portions and a support portion with a guide portion protruding downward between the elastic portions, image reading device including the document conveying device, and image forming apparatus
Provided is a document conveying device, including: a conveyance guide member which is capable of being opened upward and closed with respect to a contact glass, disposed facing the contact glass along a conveying direction of a document, and guides the document to an upper surface of the contact glass; a reading guide member which is disposed along a width direction of the document, movably supported in an up-and-down direction with respect to the conveyance guide member, and guides the document to a position facing an image reading region in the upper surface of the contact glass; a protruding portion which is protruded outward from at least one end portion of the reading guide member in the width direction; a support portion which is protruded outward from the conveyance guide member along the width direction above the protruding portion; and elastic portions which are protruded downward from the support portion and sandwich the protruding portion so that the protruding portion is movable in the up-and-down direction, each of the elastic portions having a tip end including a claw portion which engages with the protruding portion from below by snap-fitting so as to enable regulation of downward movement of the protruding portion.
1. A document conveying device, comprising:
a conveyance guide member which is capable of being opened upward and closed with respect to a contact glass, is disposed facing the contact glass along a conveying direction of a document, and guides the document to an upper surface of the contact glass;
a reading guide member which is disposed along a width direction of the document, is movably supported in an up-and-down direction with respect to the conveyance guide member, and guides the document to a position facing an image reading region in the upper surface of the contact glass;
a protruding portion which protrudes outward from at least one end portion of the reading guide member in the width direction;
a support portion which protrudes outward from the conveyance guide member along the width direction above the protruding portion; and
elastic portions which protrude downward from the support portion and sandwich the protruding portion so that the protruding portion is movable in the up-and-down direction, each of the elastic portions having a tip end including a claw portion which engages with the protruding portion by snap-fitting so as to enable regulation of downward movement of the protruding portion, wherein:
the support portion includes a guide portion formed thereon, the guide protruding downward between the elastic portions,
the protruding portion has a through hole through which the guide portion passes in a slidable manner, and
the document conveying device further comprises a bias member, provided between the support portion and the protruding portion, which biases the protruding portion in a direction separating from the support portion.
2. A document conveying device according to claim 1 , wherein:
each claw portion has a first inclined portion which protrudes upward from the claw portion; and
the protruding portion has an end portion facing each claw portion, each end portion having a second inclined portion which protrudes therefrom so as to be engagable with the first inclined portion.
3. A document conveying device according to claim 1 , further comprising a reinforcement portion which is provided on the protruding portion so as to protrude downward from the protruding portion and is provided on a side end portion of the reading guide member so as to protrude from the reading guide member.
4. An image reading device comprising the document conveying device according to claim 1 .
5. An image forming apparatus comprising the image reading device according to claim 4 .