JPH0548463U - Paper guide mechanism - Google Patents

Abstract

(57) [Summary] [Object] To provide a paper guide mechanism that satisfies the function of a paper guide at the time of paper feeding in a downsized paper feeding device and facilitates packing at the time of transportation. [Structure] A removable extension paper guide is added to the paper guide fixed to the paper feeding device.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This invention relates to a paper feed of an image scanner which is an input device to an information processor.

[0002]

[Prior Art]

 4 to 6 show conventional paper feeding, FIG. 4 is a perspective view showing the entire paper feeding device, FIG. 5 is a sectional view, FIG. 6 is a sectional view, and FIG. 7 is a plan view showing a relationship between a paper guide and paper. 8 and 9 are partial perspective views showing the movement of the paper guide. In the drawing, 1 is a paper feeding device, 2 is an image scanner including an image sensor and an optical system (not shown), 3 is a tray on the supply side, 4 Is a discharge side tray, 5a is a paper guide (left), 5b is a paper guide (right), 6 is an image sensor 2 and a paper feeding device 1, 7 is a paper feeding roller, 8 is a separating piece, and 9 is a paper feeding drive. Rollers, 10 is a scanner side roller facing the paper feed drive roller 9, 11 is a paper feed drive roller, 12 is a scanner side roller facing the paper feed drive roller 11, 13 is a document, 14 Is a paper feed roller cover, and 14a is an insertion slot. .

Next, the operation will be described. The original to be read by the image scanner 2 is set on the paper feed side tray 3 while being inserted into the insertion opening 14a provided in the paper feed roller cover 14. After that, the paper guides 5a and 5b are moved toward the width to adjust the left and right edges of the paper. A plurality of originals 13 are separated one by one by the paper feed roller 7 and the separating piece 8 and sent. The separated original 13 is further conveyed by the rollers 10 and 12 of the image scanner 2 and the drive rollers 9 and 11 of the paper feeding device 1. The original document 13 is read by an image sensor through an optical system incorporated in the image scanner 2 while passing between the rollers 10 and 12. (Here, the reading operation of the original is omitted.) The original that has been read is stored in the tray 4 after passing through the drive rollers 11 and 12.

[0004]

[Problems to be solved by the device]

 Since the conventional paper feeding device is configured as described above, if the paper guide is made longer than the outer shape of the device, it is easily damaged by an external force during transportation. Also, if the damage is to be compensated for by packaging, cushioning design becomes difficult. Therefore, the paper guide is formed so as not to protrude from the paper feeding device, and the length along the end face of the paper is shortened. If the length of the paper guide along the edge of the paper is short, the holding force that restricts the straightness of the paper in the traveling direction is insufficient. Further, when inserting the paper, the straight line portion indicating the traveling direction of the paper is insufficient, so the paper is inserted diagonally. As described above, there are problems that the paper meanders or easily skews.

The present invention has been made to solve the above-mentioned problems, and an object thereof is to prevent meandering and skewing of paper feeding and improve straightness.

[0006]

[Means for Solving the Problems]

 The paper guide mechanism according to the present invention is such that an extension paper guide having a longer contact surface on the end surface of the paper, which is attachable / detachable, is added to the paper guide attached to the paper feeding device.

[0007]

[Action]

 The paper guide mechanism in this invention secures the straightness of the paper by the extension paper guide during operation, and removes the extension guide during shipping to protect it from damage.

[0008]

【Example】

 Example 1. An embodiment of the present invention will be described below with reference to the drawings. 1 to 3, 21 is a paper feeding device including a driving portion, 22 is an image scanner including an image sensor and an optical system, 23 is a paper feed side tray, 24 is a discharge side tray, 25a is a paper guide (left), Reference numeral 25b is a paper guide (right), 25c is a protrusion provided on the side surface of the paper guide, 25d is a hole provided in the plane of the paper guide, and 26 is a cable for exchanging signals between the paper feeding device 21 and the image scanner 22. , 32 is a groove formed in the paper feeding device to which the paper guides 25a and 25b are guided, 34 is a paper feed roller, 34a is an insertion port, 35a is an elongated paper guide (left), 35b is an extended paper guide (right), 35c is a hole provided on the side surface of the extension paper guide, and 35d is a protrusion provided on the lower surface of the extension paper guide.

Next, the operation will be described. When the paper feed operation is performed, the extension paper guides 35a and 36b are inserted into the protrusions 25c provided on the paper guide by using the elasticity of the holes 35c provided in the extension paper guide, as shown in FIG. By inserting the protrusion 35d provided in the extension paper guide into the hole 25b provided in the paper guide, the paper guides 25a and 25b are mounted with one touch. By adding the extension paper guide, the guide extends in the paper insertion direction and the contact surface with the end surface of the paper increases. In addition, since the straight line portion increases in the traveling direction of the paper, it is possible for the operator to insert the paper straight.

[0010]

[Effect of the device]

 As described above, according to the present invention, the extension paper guide can be added only during operation, so that the paper feeding device of the main body can be accommodated in a small size. Also, there is an effect that packaging can be easily performed during transportation.

[Brief description of drawings]

FIG. 1 is an overall perspective view of an image scanner and a paper feeding device including a paper guide mechanism according to an embodiment of the present invention.

FIG. 2 is a partially exploded view of a paper guide mechanism according to an embodiment of the present invention.

FIG. 3 is a partial perspective view showing an extension paper guide according to an embodiment of the present invention.

FIG. 4 is an overall perspective view showing a conventional image scanner and a paper feeding device.

FIG. 5 is a cross-sectional view showing a conventional image scanner and a paper feeding device.

FIG. 6 is a cross-sectional view showing the movement of a conventional paper.

FIG. 7 is a plan view showing a relationship between a conventional paper and a paper guide.

FIG. 8 is a partial perspective view showing the movement of the conventional paper guide.

[Explanation of symbols]

 1 Paper Feeding Device 2 Image Scanner 3 Paper Feed Tray 4 Ejection Tray 5a Paper Guide (Left) 5b Paper Guide (Right) 6 Cable 7 Paper Feed Roller 8 Separation Piece 9 Drive Roller 10 9 Scanner Side Roller 11 Drive Roller 12 Roller 12 facing scanner side 13 Original 14 Paper feed roller cover 14a Insert 21 Paper feeder 22 Image scanner 23 Paper feed tray 24 Discharge tray 25a Paper guide (left) 25b Paper guide (right) 25c Protrusion 25d Hole 26 Cable 32 Groove 34 Paper Feed Roller Cover 34a Insertion Port 35a Extension Paper Guide (Left) 35b Extension Paper Guide (Right) 35c Hole 35d Protrusion

Claims (3)

[Scope of utility model registration request] 1. A paper guide mechanism comprising a paper guide of an image scanner attached to the main body of the apparatus, wherein an extension paper guide detachable from the paper guide is added to the paper guide. 2. A paper guide mechanism according to claim 1, wherein the paper feed device is a continuous paper feed device, and the extension paper guide is added to the paper feed device. 3. The paper guide mechanism according to claim 1, wherein the extension paper guide is detachable from the paper guide with one touch by utilizing the elasticity of a plastic molded product.