JP2008035000A - Image reader - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make a user readily recognize the rotating direction of a jam-removing handle, without having to incur extra costs or troubles, such as making and sticking guide stickers. <P>SOLUTION: If a document becomes jammed in an automatic document conveyance device 18, the user opens a cover member 28 and makes the jam-removing handle 30 rotate. At this time, since a first oblique-side part 36 and a second oblique-side part 38, constituting a lock part 34 of the jam-removing handle 30 are distinctly different in outward appearance, so the user can know the direction in which the jam-removing handle 30 is to be rotated (direction of arrow X in Fig.3) at a glance by looking at the outward appearance of the jam-removing handle 30. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an image reading apparatus that reads information or the like described on a document.

  In a conventional image reading apparatus, a paper feed tray on which a document is placed, an automatic document feeder (ADF device) that supplies a document on the paper feed tray to an information reading portion, and an automatic document feeder to an information reading portion. And a paper discharge tray for discharging the supplied paper.

The automatic document feeder is provided with a cover member that opens when a document jams inside, and a jam clearing handle for removing the jammed document. When a document jams inside the automatic document feeder, the jammed document can be easily removed by opening the cover member and rotating the jam clearing handle in a predetermined direction.
JP-A-5-97279

  By the way, in the conventional image reading apparatus, the rotation direction of the jam clearing handle is difficult to understand in appearance, and when the jam clearing handle is rotated in the correct direction, the jammed document can be easily removed, but the jam clearing handle is incorrectly set in the wrong direction. If it is rotated, the jammed document is pressed against the conveyance path, and the document is seriously damaged. When the jammed original is pressed against the conveyance path, there is a problem that it is difficult to remove the original.

  On the other hand, in order to rotate the jam clearing handle in the correct direction, it may be possible to guide the user by sticking a guide sticker such as an arrow indicating the direction of rotating the jam clearing handle in the vicinity of the jam clearing handle. However, there is a problem that extra labor, cost, and space for creating and sticking the induction seal arise.

  In view of the above circumstances, the present invention is an image reading apparatus that allows the user to easily recognize the rotation direction of the jam clearing handle without taking extra cost and labor such as creating and pasting a guide seal. The purpose is to provide.

  The invention according to claim 1 is an image reading apparatus comprising: an image reading apparatus main body that reads information on a document at an information reading portion; and an automatic document feeder that supplies the document to the information reading portion. The automatic conveying device has a jam clearing handle for removing a jammed document by rotating in one direction, and the jam clearing handle includes a non-pressing portion located on one side and a side opposite to the one direction. An engaging portion having a pressing portion positioned is formed, and the shape of the pressing portion and the shape of the non-pressing portion are different from each other.

  According to a second aspect of the present invention, in the image reading apparatus according to the first aspect, the jam clearing handle has a handle main body portion rotatably attached to the automatic document feeder, and the locking portion is It is formed in the outer peripheral part of the said handle main-body part, It is characterized by the above-mentioned.

  According to a third aspect of the present invention, in the image reading apparatus according to the second aspect, an inclination angle of the outer peripheral surface of the handle main body portion at the pressing portion with respect to a tangential direction is an outer periphery of the handle main body portion at the non-pressing portion. It is characterized by being larger than the angle of inclination with respect to the tangential direction of the surface.

  According to the first aspect of the present invention, when a document jams inside the automatic document feeder, the user tries to rotate the jam clearing handle. At this time, the jam clearing handle is formed with a locking portion in which the shape of the non-pressing part located on the one direction side and the shape of the pressing part located on the opposite side to the one direction side are different from each other. Can know the direction of rotation just by looking at the shape of the jam clearing handle. As a result, it is possible to allow the user to easily recognize the rotation direction of the jam clearing handle without taking extra cost and labor such as creation and pasting of the guide seal.

  The “pressing part” in the present invention means a part that a user or an operator presses with a finger to rotate the jam clearing handle, for example. In addition, the “non-pressed part” means, for example, a part where the user or the worker does not need to press and press the finger to rotate the jam clearing handle.

  According to the second aspect of the present invention, since the locking portion is formed on the outer peripheral portion of the handle body portion, the locking portion is easily noticeable by the user. Thereby, the user who has seen the jam clearing handle can recognize the rotation direction instantly. In addition, since the engaging portion is formed on the outer peripheral portion of the handle main body portion, the user's finger can be easily engaged with the engaging portion, and the jam clearing handle can be easily rotated.

  According to the third aspect of the present invention, the inclination angle with respect to the tangential direction of the outer peripheral surface of the handle main body portion at the pressing portion is larger than the inclination angle with respect to the tangential direction of the outer peripheral surface of the handle main body portion at the non-pressing portion. The user's finger can be easily locked against the part and can be easily pressed. On the other hand, it is difficult to lock the user's finger against the non-pressed portion, and it is difficult to press it. For this reason, when the user tries to rotate the jam clearing handle in the reverse direction, the user easily notices that the rotation direction is wrong. In this way, the user can instantly know the direction of rotation by touching the jam clearing handle. As described above, according to the present invention, it is possible to allow the user to easily recognize the rotation direction of the jam clearing handle without taking extra costs and troubles such as creation and sticking of the guide seal.

  Next, an image reading apparatus according to an embodiment of the present invention will be described with reference to the drawings.

  As shown in FIGS. 1 and 2, the image reading apparatus 10 includes an image reading apparatus main body 12 that reads document information. An information reading portion (not shown) for reading document information is provided at the top of the image reading apparatus main body 12. The image reading apparatus main body 12 is provided with an operation unit 14 including a key for starting a document reading operation.

  A paper feed tray 16 on which an original is placed is provided on the upper part of the image reading apparatus main body 12. Further, an automatic document feeder 18 for supplying a document placed on the paper feed tray 16 to an information reading part is provided on the upper part of the image reading apparatus main body 12. A paper discharge tray 20 is provided above the image reading apparatus main body 12 and below the paper feed tray 16 to discharge the document supplied to the information reading portion.

  Inside the automatic document feeder 18, an automatic document feeder main body 24 having a document conveyance mechanism 22 for conveying a document is provided. On the upper surface of the automatic document feeder main body 24, a document passage surface 26 through which the document on the paper feed tray 16 passes is formed. In the automatic document feeder 18, a cover member 28 that forms a part of the casing of the automatic document feeder 18 and covers the document conveyance mechanism 22 and the document path surface 26 opens and closes with respect to the automatic document feeder main body 24. It is possible. When the cover member 28 is opened, the original passage surface 26 and the original conveying mechanism 22 are exposed to the outside. When the cover member 28 is closed, the document path surface 26 and the document transport mechanism 22 are hidden under the cover member 28 and cannot be viewed from the outside.

  Here, as shown in FIGS. 2 and 3, in the vicinity of the document passage surface 26 of the automatic document feeder main body 24, when the document is jammed inside the automatic document feeder 18, the document is automatically conveyed 18. A jam clearing handle 30 is provided for removal from the jam. The jam clearing handle 30 includes a handle main body portion 32 that is rotatably attached to the automatic document feeder main body 24 and a locking portion 34 formed on the outer peripheral portion of the handle main body portion 32. In the present embodiment, the jammed document can be removed from the inside of the automatic document feeder 18 by rotating the jam clearing handle 30 in the direction of the arrow X in FIG.

  The jam removal handle 30 is not limited to the configuration in which the jammed original is removed by rotating in the arrow X direction in FIG. 3. For example, the jam removal handle 30 is rotated in the direction opposite to the arrow X direction in FIG. 3. It may be configured to remove the jammed document.

  The locking part 34 is formed in a triangular shape in a side view. A first oblique side portion (non-pressed portion) 36 having a relatively small inclination angle with respect to the tangential direction of the outer peripheral surface 32A of the handle main body portion 32 is formed on the rotation direction side of the locking portion 34. Further, on the side opposite to the rotation direction of the locking portion 34, a second oblique side portion (pressing portion) 38 whose inclination angle with respect to the tangential direction of the outer peripheral surface 32 </ b> A of the handle main body portion 32 is larger than that of the first oblique side portion 36. Is formed. The inclination angle of the second oblique side portion 38 with respect to the tangential direction of the outer peripheral surface 32A of the handle main body portion 32 is set to approximately 90 degrees. Further, the length of the hypotenuse of the first hypotenuse part 36 is set to be longer than the length of the hypotenuse of the second hypotenuse part 38. Thus, the first oblique side portion 36 and the second oblique side portion 38 are clearly different in appearance. When the user rotates the jam clearing handle 30, the finger is hooked on the second hypotenuse 38 and rotated in a predetermined direction (the arrow X direction in FIG. 3).

  Next, the operation of the image reading apparatus 10 of this embodiment will be described.

  As shown in FIGS. 2 and 3, when the document jams inside the automatic document feeder 18, the user opens the cover member 28 and rotates the jam clearing handle 30. At this time, since the shapes of the first oblique side portion 36 and the second oblique side portion 38 constituting the locking portion 34 of the jam removal handle 30 are clearly different in appearance, the user looks at the outer shape of the jam removal handle 30 to jam. The direction in which the release handle 30 is rotated (the direction of the arrow X in FIG. 3) can be instantly known.

  In particular, since the locking portion 34 is formed on the outer peripheral portion of the handle main body 32, the locking portion 34 is easily noticeable by the user. Thereby, the user who has seen the jam clearing handle 30 can instantly recognize the rotation direction.

  Further, when a document jams inside the automatic document feeder 18, the user tries to rotate the jam clearing handle 30, but the locking portion 34 of the jam clearing handle 30 has one direction (in the direction of arrow X in FIG. 3). ) Has a second oblique side portion 38 to which the user's finger is locked, and the first oblique side is intended to be rotated in the direction opposite to one direction (the direction opposite to the arrow X direction in FIG. 3). Since it becomes difficult to lock the user's finger to both the portion 36 and the second oblique side portion 38, even when the user touches the jam clearing handle 30, the direction in which the finger is rotated (direction of arrow X in FIG. 3) Can know. In particular, since the locking portion 34 is formed on the outer peripheral portion of the handle body portion 32, the user's finger can be easily locked on the locking portion 34, and the jam clearing handle 30 can be easily rotated.

  Further, when the user tries to rotate the jam clearing handle 30 in the reverse direction (the direction opposite to the arrow X direction in FIG. 3), the user's finger is not locked to the locking portion 34, so that the user has the wrong rotation direction. You will easily notice that. As a result, the user can easily recognize the rotation direction (arrow X direction in FIG. 3) of the jam clearing handle 30 without taking the extra cost and trouble of creating and pasting the induction seal as in the prior art. Can do.

  When the jammed handle 30 is rotated in the direction opposite to the arrow X direction in FIG. 3 to remove the jammed original, the formation position of the first oblique side portion 36 and the formation position of the second oblique side portion 38 are reversed. By setting, the user can instantly recognize the rotation direction of the jam clearing handle 30.

1 is a perspective view of an image reading apparatus according to an embodiment of the present invention. 1 is a perspective view of a state in which a cover member of an automatic document feeder constituting an image reading apparatus according to an embodiment of the present invention is opened. 1 is a perspective view of a jam clearing handle of an automatic document feeder that constitutes an image reading apparatus according to an embodiment of the present invention. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Image reading apparatus 12 Image reading apparatus main body 18 Automatic document feeder 30 Jam clearing handle 32 Handle main body part 34 Locking part 36 First oblique side part (non-pressing part)
38 Second hypotenuse (pressing part)

Claims (3)

An image reading apparatus having an image reading apparatus main body that reads information on a document at an information reading portion, and an automatic document feeder that supplies the document to the information reading portion,
The automatic document feeder has a jam clearing handle for removing a jammed document by rotating in one direction,
The jam clearing handle is formed with a locking portion having a non-pressing portion located on one direction side and a pressing portion located on the opposite side to the one direction side,
An image reading apparatus, wherein a shape of the pressing portion and a shape of the non-pressing portion are different from each other. The jam clearing handle has a handle main body that is rotatably attached to the automatic document feeder.
The image reading apparatus according to claim 1, wherein the locking portion is formed on an outer peripheral portion of the handle main body portion. The inclination angle with respect to the tangential direction of the outer peripheral surface of the handle main body portion at the pressing portion is larger than the inclination angle with respect to the tangential direction of the outer peripheral surface of the handle main body portion at the non-pressing portion. Image reading apparatus.

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