Automatic document transportation device and document scanning device equipped with the same
First Claim
1. An automatic document transportation device comprising:
- a main body portion;
a rotation frame arranged to be supported at the main body portion to be rotatable from a usage position to an exposed position on an upper side to open one portion of a document transportation path;
a gear portion having a wheel shape and arranged on a rotation axis line of the rotation frame to integrally rotate with the rotation frame;
a resistance gear arranged to mesh with the gear portion;
a brake portion arranged to apply a resistance to the resistance gear when the rotation frame rotates from the exposed position to the usage position on a lower side; and
an outer cover attached to the main body portion to cover at least one portion of the gear portion;
whereinthe outer cover includes a contacting portion arranged to regulate movement of the gear portion in a direction of movement away from the resistance gear; and
the rotation frame includes a transportation roller arranged so that an axis line coincides with a center of rotation of the gear portion.
1 Assignment
0 Petitions
Accused Products
Abstract
An ADF includes an ADF main body portion, a scanner frame, a gear portion, a resistance gear, a torque limiter, and an outer cover. The scanner frame is arranged to be supported at the ADF main body portion such that it is rotatable. The gear portion is arranged on a rotation axis line of the scanner frame to integrally rotate with the scanner frame. The torque limiter is arranged to apply a resistance to the resistance gear that meshes with the gear portion when the scanner frame rotates from an exposed position to a usage position. The outer cover is attached to the ADF main body portion to cover one portion of the gear portion. The outer cover includes a contacting portion arranged to regulate the movement of the gear portion.
9 Citations
7 Claims
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1. An automatic document transportation device comprising:
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a main body portion; a rotation frame arranged to be supported at the main body portion to be rotatable from a usage position to an exposed position on an upper side to open one portion of a document transportation path; a gear portion having a wheel shape and arranged on a rotation axis line of the rotation frame to integrally rotate with the rotation frame; a resistance gear arranged to mesh with the gear portion; a brake portion arranged to apply a resistance to the resistance gear when the rotation frame rotates from the exposed position to the usage position on a lower side; and an outer cover attached to the main body portion to cover at least one portion of the gear portion;
whereinthe outer cover includes a contacting portion arranged to regulate movement of the gear portion in a direction of movement away from the resistance gear; and the rotation frame includes a transportation roller arranged so that an axis line coincides with a center of rotation of the gear portion. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification