ORIGINAL READING DEVICE AND IMAGE FORMING APPARATUS INCLUDING THE SAME

• US 20110176124A1
• Filed: 01/11/2011
• Published: 07/21/2011
• Est. Priority Date: 01/19/2010
• Status: Active Grant

• Current Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Inventors: TAKATA, Sohichi
• Granted Patent: US 8,457,527 B2
• Time in Patent Office: Days
• US Class Current: 355/75
• CPC Class Codes: G03G 15/605 Holders for originals or exposure platens for photographic purposes in general G03B
• CPC Class Codes: G03G 21/1619 Frame structures
• CPC Class Codes: G03G 2221/1678 Frame structures
• CPC Class Codes: H04N 1/00519 Constructional details not otherwise provided for, e.g. housings, covers
• CPC Class Codes: H04N 1/00554 Latches or hinges therefor
• CPC Class Codes: H04N 2201/0081 Image reader H04N2201/0091 - H04N2201/0094 take precedence
• CPC Class Codes: H04N 2201/0091 Digital copier; digital 'photocopier' H04N2201/0093 and H04N2201/0094 take precedence
• CPC Class Codes: H04N 2201/0094 Multifunctional device, i.e. a device capable of all of reading, reproducing, copying, facsimile transception, file transception

Abstract

An original reading device is provided with an original cover, an original reading device main body, and a cover attachment portion that attaches the original cover to the original reading device main body in an openable and closeable manner, and the cover attachment portion is constituted by a rod-shaped hinge portion that is attached to the original cover through an open-close mechanism portion, and a hinge guide portion that is provided in the original reading device main body and through which the rod-shaped hinge portion is inserted and supported, and a latch indentation is provided in the hinge guide portion such that a latch protrusion provided at a lower portion of the rod-shaped hinge portion is latched into the latch indentation to maintain a state in which the rod-shaped hinge portion is pulled out a predetermined distance from the hinge guide portion.

Claims

1. An original reading device comprising an original cover that is provided with an original transport device;

an original reading device main body that is provided with an original placement platform; and

a cover attachment portion that attaches the original cover to the original reading device main body in an openable and closeable manner,

wherein the cover attachment portion comprises a rod-shaped hinge portion that is attached to the original cover through an open-close mechanism portion; and

a hinge guide portion that is provided in the original reading device main body and through which the rod-shaped hinge portion is inserted and supported, and

a latch indentation is provided in the hinge guide portion such that a latch protrusion provided at a lower portion of the rod-shaped hinge portion is latched into the latch indentation in a state in which the rod-shaped hinge portion is pulled out a predetermined distance from the hinge guide portion.

2. The original reading device according to claim 1,

wherein the open-close mechanism portion is arranged to enable the original cover to open in one direction up to a first angle from a direction orthogonal to a longitudinal direction of the rod-shaped hinge portion, and

in a state in which the latch protrusion is latched into the latch indentation, the rod-shaped hinge portion is held tilted in the one direction up to a second angle from a guide direction of the hinge guide portion.

3. The original reading device according to claim 2,

wherein the first angle is set to approximately 60 degrees and the second angle is set to approximately 30 degrees.

4. The original reading device according to claim 1,

wherein the open-close mechanism portion is arranged to enable the original cover to rotate in a rotation direction up to a first angle centered on a rotating shaft, and

the rod-shaped hinge portion is held in the hinge guide portion so as to enable the rod-shaped hinge portion to move the predetermined distance in a direction away from an extension surface of the original placement surface of the original placement platform, and further still to tilt in the rotation direction up to a second angle such that the latch protrusion is latched into the latch indentation.

5. The original reading device according to claim 2,

wherein when a direction in which the original cover opens is a front-back direction as viewed by an operator facing a side surface on a far side from the hinge guide portion in the original reading device main body,

the cover attachment portion is arranged in a rear portion of the original reading device main body,

the rod-shaped hinge portion is formed in a rod shape, and

the hinge guide portion is formed as an open tube, and an upper portion of a rear side inner wall surface of the hinge guide portion is formed as a first tilted surface that is tilted backward from a direction vertical to an original reading surface of the original placement platform by the second angle.

6. The original reading device according to claim 2,

wherein when a direction in which the original cover opens is the front-back direction as viewed by an operator facing a side surface on a far side from the hinge guide portion in the original reading device main body,

the rod-shaped hinge portion has the latch protrusion formed at a lower portion of a front sideouter wall surface, and a lower part below the latch protrusion of the front side outer wall surface is formed as a second tilted surface that is tilted backward by the second angle from an upper part above the latch protrusion of the front side outer wall surface.

7. The original reading device according to claim 5,

wherein the rod-shaped hinge portion has the latch protrusion formed at a lower portion of a front side outer wall surface, and a lower part below the latch protrusion of the front side outer wall surface is formed as a second tilted surface that is tilted backward by the second angle from an upper part above the latch protrusion of the front side outer wall surface.

8. The original reading device according to claim 1,

wherein when a direction in which the original cover opens is a front-back direction as viewed by an operator facing a side surface on a far side from the hinge guide portion in the original reading device main body,

the rod-shaped hinge portion is formed so that a front-back direction dimension of a lower portion is smaller than a front-back direction dimension of an upper portion.

9. The original reading device according to claim 5,

wherein the rod-shaped hinge portion is formed so that a front-back direction dimension of a lower portion is smaller than a front-back direction dimension of an upper portion.

10. The original reading device according to claim 7,

wherein the rod-shaped hinge portion is formed so that a front-back direction dimension of a lower portion is smaller than a front-back direction dimension of an upper portion.

11. The original reading device according to claim 5,

wherein the rod-shaped hinge portion is formed as a rod shape having a substantially rectangular-parallelepiped form, and

the hinge guide portion is formed as an open tube having a substantially rectangular-parallelepiped form.

12. The original reading device according to claim 7,

wherein the rod-shaped hinge portion is formed as a rod shape having a substantially rectangular-parallelepiped form, and

the hinge guide portion is formed as an open tube having a substantially rectangular-parallelepiped form.

13. The original reading device according to claim 9,

wherein the rod-shaped hinge portion is formed as a rod shape having a substantially rectangular-parallelepiped form, and

the hinge guide portion is formed as an open tube having a substantially rectangular-parallelepiped form.

14. The original reading device according to claim 10,

wherein the rod-shaped hinge portion is formed as a rod shape having a substantially rectangular-parallelepiped form, and

the hinge guide portion is formed as an open tube having a substantially rectangular-parallelepiped form.

15. An image forming apparatus comprising an original reading device according to claim 1 and an image forming portion.