JPS6392555A - Sheet inserting guide - Google Patents

Abstract

PURPOSE:To make sure of the guide of such a sheet as high in service frequency as well as to dispense with an unnecessary, expensive mechanism, by forming a sheet passing surface of a sheet insertion guide into a stepped structure, and attaching this stepped part to a guide surface. CONSTITUTION:When an original is slidden on a guide plate 13 and the original tip side is sufficiently inserted into the inside of a device from an original inserting port 4, a tip part of the original O is guided upward by upper and lower guide plates 14 and 15, getting into an original feed roller 10 and a contact part of a front plate of a CS unit 11, and the original O passes through the front of the CS unit 11 by dint of rotation conveying force of the roller 10, then it is conveying upward in succession. The original O of maximum broad is ranged for its width by guide side walls 13a and 13a at both ends of the guide 13 and inserted into an original inserting port 4, while the original equivalent to effective width or such an original as being smaller than the maximum broad and much in service frequency is range for its width by double- end stepped wall surfaces 13a and 13c in a part of a chuting surface 13d of the guide 13 and then it is inserted into the original inserting port 4.

Description

DETAILED DESCRIPTION OF THE INVENTION A. Object of the Invention [Field of Industrial Application] The present invention relates to a sheet insertion guide for an apparatus having a sheet insertion opening.

[Conventional technology]

For example, facsimile machines, manual copying machines, and the like have an insertion slot for sheet originals, and the original is inserted through the insertion slot. Then, the inserted original is drawn into the apparatus, passes through an image reading section and a copy exposure section, the image is read and copied, and is ejected from the apparatus through an ejection port.

A sheet insertion guide is provided on the sheet insertion opening side so that the sheet can always be inserted into the insertion opening in a predetermined manner.

Conventionally, such sheet insertion guides (hereinafter referred to as document insertion guides) have been as shown below.

■A model with guides on only one side because the document is placed close to one edge of the document table, and a guide on both sides to match the width of the document even when inserting a small document so that the document is always inserted in the center of the document table. There are two types of guides that move.Recently, the latter type, in which the width is divided in the center and the guides at both ends move, is common.

■The model with seven moving guides has a structure in which when one guide is moved, the other guide is mechanically interlocked with the rack and gears or links. In this case, it is common to detect the document width using a micro switch or the like based on the movement of the interlocking guide.

(2) In general, the document alignment guide is often fixed to the main body of the device.

■1 Even if it is a removable type, use a positioning bin etc. to determine its position.
Alternatively, there are many structures in which a hook-like hook member is inserted into a long hole.

(Uh, in many removable devices, the attachment/detachment position is visible on the outside of the device, so the document width determining guide using the removable guide does not enter the inside of the device in many cases.

[Problem that the invention seeks to solve]

a. Types in which the guides on both sides move, such as the above ■Φ■ fist■, have a complicated structure and are expensive. For example, a small machine designed specifically for small-sized documents such as A5 and B5 cannot read A4. Like a machine, A3 or above, B5, A4, A4
There is no need to check the document width such as the following, and the commonly used document sizes are A-B series paper such as A5/85, so there is no need to guide both edges of the document of any width. Therefore, the conventional mechanism is not practical because the device is expensive. In particular, in an 85-pass machine and an A5 reader, it is not inconvenient to limit the documents commonly used to A5 and 85.

b. In the case of a device that is fixed to the main body of the device as in (2) above, the guide is fixed to the main body of the device if the document insertion slot is provided at the lower front side of the device in order to downsize the device. Depending on the precision of the fixed dimensions, there may be a gap between the desk surface on which the device is placed and the guide, and when inserting a document, the leading edge of the document may be accidentally inserted into that gap. It didn't happen.

C1 In the removable type described in (2) above, the guide is generally attached and treated as a function, and the positioning of the document in the width direction is determined separately based on the abutment reference of the main body, and for this reason, the device cannot be miniaturized.

d. The above-mentioned item (■) had the disadvantage that the attachment/detachment part was located near the outside of the device, and the setting area when the guide was attached was large. For this reason, it had the same drawback as the above-mentioned item (2). In other words, the single attachment/detachment type could only be used as a document insertion guide, and could not be used to determine the width of the document.

The present invention aims to solve the above-mentioned disadvantages of conventional guides.

1. Structure of the Invention [Means for Solving the Problems] The present invention is a sheet insertion guide for a device having a sheet insertion opening, which has both ends perpendicular to a plane through which the sheet to be inserted comes into contact with and passes through. Width determining guides are provided on the left and right sides, and the guide width is the same as the maximum sheet passing width of the device into which the sheet is inserted, or is several times wider, and the sheet passing surface is not on the same plane and is several times higher than the central portion. It has both left and right end portions, and the width of the lower central portion is defined as the effective processing width of the device or the most used m*mei Xz -k resistance ζΔ static shield sheet insertion guide.

[For production]

That is, the sheet passing surface of the sheet insertion guide has a stepped structure in which the guide surfaces perpendicular to the sheet passing surface of the sheet insertion guide are made left and right, and the central portion is depressed relative to the other left and right portions within the said passing surface. By attaching the stepped part to the guide surface, the maximum width sheet can be set with the guides at both ends, and the sheet corresponding to the effective processing width of one device, or the sheet that is smaller than the maximum width sheet and is used frequently. The convergence can be guided on both end faces of the recessed portion, which not only ensures the reliable guidance of frequently used sheets, but also eliminates unnecessary and expensive mechanisms, making the device less expensive. .

[Embodiment] The figures show an example of a facsimile machine equipped with a document insertion guide 13 constructed in accordance with the present invention. Fig. 1 is a perspective view of the overall appearance of the facsimile machine, and Fig. 2 is a cross-sectional view.

In Fig. 1, 1 and 2 are upper and lower device exterior cases that are stacked one on top of the other and connected to the body, 3 is a handset, and 4 is a handset.
5 is a horizontally elongated document insertion port provided on the front wall of the device; 5 is a document ejection port provided horizontally on the front side of the upper device exterior case; 6 is an operation panel integrated into the upper device exterior case 1;
Reference numeral 7 indicates a slide knob for a document path release operation, and reference numeral 13 indicates a document insertion guide plate provided in the document insertion slot 4.

In the apparatus shown in FIG. 2, reference numeral 10 denotes a document conveying roller (reading re-platen roller) with a white circumferential surface built into the distal end of the apparatus, and is driven in the direction of the arrow by a drive mechanism (not shown) around a shaft 10a. Rotationally driven. 11 is free to swing toward and away from the rear surface side of the roller 10 about the support shaft 11a;
The CS unit is a contact type image sensor unit (CS unit) that is normally pressed and held against the rear surface of the roller 10 by a tension spring 12 with a predetermined pressing force.
Light 1i11b for document illumination such as D array, Selfoc (
It has a built-in short focus lens array 11C1 photoelectric sensor array lid (product name) etc.

When the apparatus is placed on the desk surface, the document guide plate 13 is in contact with the desk surface at its tip side, and communicates between the desk surface and the document insertion opening 4 of the apparatus.

Place the original 0 on the original guide plate 13 and the desk surface in front of it with the image side facing down, slide the original on the guide plate 13, and fully insert the leading edge of the original into the holder through the original insertion slot 4. When the document O is inserted into the upper and lower guide plates 14-1,
5, the document 0 enters the contact area between the document transport roller 10 and the front plate of the CS unit) 11, and then the document 0 passes through the front surface of the CS unit) 11 by the rotational conveying force of the roller 10 and continues to be transported upward. <(The in coefficient of the roller 10 is made larger than that of the front surface of the CS unit 11), and in the process of passing the front of the CS unit, the CS unit 11
The image surface of the original O is sequentially photoelectrically read and scanned, and the read image signal is transmitted to the other party's facsimile machine or the like.

The document portion that has passed through the front of the CS unit (CS unit) 11 is guided by paper ejection guide plates 16 and 17 and conveyed upward, and exits the device from the document ejection port 5 that is open on the top surface of the upper device exterior case 1. Then, the document is discharged in a U-turn toward the front side of the device, that is, in a direction B opposite to the direction A in which the document is introduced into the device.

By using the document U-turn conveyance method as described above, the document path length can be extremely shortened, and since the desk surface itself is used as a document AM table and a document receiving tray is not required, the overall size of the device can be reduced. can be achieved.

If the rotation of the document transport roller stops for some reason during the reading of the document introduced into the apparatus, the document 0 is sandwiched between the stopped roller IO and the CS unit 11 by the biasing force of the spring 12. It becomes impossible to remove it from the device.

In such a case, move the slide knob 7 (Fig. 1) in the direction of arrow C.
CS unit 11 when you slide it towards the S unit.
The roller 10 is rotated around the shaft 11a against the tension spring 12.
As a result, the document is released from being clamped (yX document path is released), and the document 0 can be easily pulled out from within the apparatus.

In addition, in the case of the apparatus of this embodiment, the document image reading section is opened by opening the cover 20 outward around the shaft 20a as shown by the two-dot chain line in FIG. Even in such a case, it is possible to easily take out the jammed document. In addition, if the document 0 introduced into the device is a thin paper or other material with weak stiffness, it will bend with a small radius of curvature as shown by the two-dot chain line ol as soon as it comes out of the document ejection port 5 and end up at a position near the document insertion port 4. The leading edge of the ejected document that is about to be re-entered from the opening 4 after hanging down is received by the open cover 20 and prevented from re-entering the opening 4.

Reference numerals 21 and 21a denote a document presence/absence sensor provided in the middle of the document path between the document insertion slot 4 and the document transport roller 10, and its 7-cut unit; 23, the device frame (chassis); 25
25a and 25b are printed circuit boards of the operation panel arranged on the back side of the operation panel 6;
The key top 25b is a circuit switch and a key top, and the key top 25b projects from a key top hole formed in the operation panel surface to the top surface of the operation panel.

26 is provided on the rear side of the upper device exterior case 1,
A recording paper cover 27, which can be opened and closed freely around a shaft 26a, is a roll of thermal recording paper loaded in a storage section 27a in the apparatus, and is attached by opening the cover 26. 2
Reference numeral 8 denotes a platen roller which is rotated in the direction of the arrow by a drive mechanism (not shown) around a shaft 28a, and 29 a recording paper cover 26.
30 is a thermal head holding plate fitted with an elongated hole in this shaft 29 and supported freely to swing around the shaft 29; 31 is a thermal head attached to the bottom side of the holding plate. , 32 is a coil spring that presses the thermal head holding plate 30 downward, 33 is a pressing rubber that presses the thermal head to a flexible wiring cable (not shown), 34 is a protection plate, and 35 is a recording paper guide. It is fixed to the holding plate 30, and the recording paper cover 26 is attached to the shaft 26a.
It also serves as a stopper to hold the thermal head so that it does not come off when it is opened upwards and raised. 3
6.36a is a recording paper presence/absence detection sensor and its 7-cut unit.

When the recording paper cover 2g is closed, the thermal head 31 is kept pressed against the upper surface of the platen roller 28 via the recording paper 27 with a predetermined pressing force, and the platen roller 28 is rotationally driven when receiving the upper side. Recording paper 2
7 is conveyed between the platen roller 28 and the thermal head 31, and the received image information is thermally recorded on the surface of the recording paper 2 by the thermal radar 31.
The image-recorded portion 7 exits the apparatus from a recording paper outlet 37 provided on the rear wall side of the apparatus.

38 is a rubber foot provided on the bottom surface of the device.

In the facsimile device of this example, the maximum document width size that can be introduced into the device from the document insertion slot 4 is 85, and the effective reading width is A5.
It is. Further, the width of the document discharge port 5 is such that a B5 document can pass therethrough. In Figure 1, OA5 is an A5 width original,
OaB indicates an 85-width original.

In the document insertion guide 13, 13as and 13a are located at both ends of the document insertion guide, and each inner wall surface serves as a guide side wall that guides both sides of the largest document 085, and the rear end side of these is the arm 13.

f and 13f (FIGS. 3 and 4), and the arm portions 13f and 13f are rotatably engaged inside both ends of the document insertion opening 4 of the device. Reference numerals 13b and 13b are stepped portions located on both sides of the guide and raised upward from the center portion. 13c*13c is a stepped surface formed at the center of the stepped portion 13b@13b and is a guide surface for the A5 width original OA5.

Reference numeral 13d denotes a depressed portion at the center, which is a passing surface where documents of A5 or smaller come into contact, and is located in the center with respect to the guides 13a at both ends.

In FIG. 2, G indicates that when the guide 13 is lifted up and rotated upwards as shown by the two-dot chain line, centering on the engaging portions 13f and 13f for the document insertion slot 4, the guide 13 moves toward the lower case 2.
The point is that it is received by interfering with the front lower jaw part of the. That is, this is the point at which the guide 13 can rotate. H is when the guide 13 is placed in a free state without letting its tip end rest against the desk surface, and the guide 13 rotates downward by its own weight as shown by the two-dot chain line around the engaging portions 13f and 13f, and connects to the lower case 2. This is the point where you can interfere and be accepted. That is, this is the lower limit point at which the guide 13 can rotate. Therefore, the guide 13 can freely rotate within the angle α regulated by the above-mentioned upper and lower points GH.

FIG. 3 is a plan view of the document insertion guide 13 removed from the document insertion opening 4 of the apparatus. Reference numeral 13f-13f is an arm portion which sometimes enters both ends of the chain 4 when attached to the opening 4 of the guide 13, and is an extension of the rear end of the aforementioned guide side wall 13ae13a. 13g/13g is arm 13f-13
This is the boss constellation outside f. 13h@13h is a hemispherical protrusion provided at the center of those position seats 13g-13g.

15a*15a is a curved rising surface that determines the width of the document insertion opening of the paper feed guide 15. 15b-15b is a round hole drilled in the rising surface. Therefore, in Figure 3, guide 1
3 into the document insertion slot 4 in the direction of , the arm 13f
- 13f interferes with the inner side surfaces of both ends of the document insertion slot 4 and is elastically bent and deformed as shown by the two-dot chain line, and enters between the rising surfaces tsb and 15b of the paper feed guide 15, and the hemispherical protrusion 13
h.13h is fitted into the round hole 15b-15b and clicked. At this time, the boss seats 13g-13g are always in contact with the rising surfaces 15t and 15b, and the arm L3f-13
Since the restoring force of the deflection deformation f always exerts a light pressing force in the direction of the arrow N, the guide 13 has an appropriate holding force and does not wobble, and the engaging portions 13h and 15 are attached to the document insertion slot 4.
b, 13h and 15b are connected to be freely rotatable. FIG. 4 shows a perspective view of the connected state, in which the guide surface 13a and the guide plate surface 15b are stepped and widened.

FIG. 5 is a front view of the apparatus with the document insertion guide 13 attached.

13i is 0.5mff on the central guide surface 13d
It has about 1 rib. The wide document surfaces 13b are stepped higher than the guide surface 13d. Also,
Since the guide side walls 13a, 13a are pressed on both sides by the guide plate surfaces 15a, 15a via the boss seats 13g, 13g, there is no wobbling in the left-right direction with respect to the device, and the guides are accurately connected to the guide inside the device. Ru.

Further, as is clear from FIG. 3, the width determining guide is structured so that it widens as it goes inside, so that even if the document skews to some extent, it will not rest on the guide. This is also clear from the perspective view shown in FIG.

Therefore, as shown in the first diagram, the document 085 with the maximum width is placed in the guide 1.
3, the width is determined by the guide side walls 13a, 13a at both ends of the guide 13, and the document is inserted into the document insertion slot 4.The width of the document corresponding to the effective width or the document OAg, which is smaller than the maximum width document and is frequently used, is determined by using the guide 13. The document is inserted into the document insertion slot 4 by using the stepped wall surfaces 13cm and 13c at both ends of the drop-in surface 13a.

In the above embodiment, the width of the stepped portion was used as the effective reading width, but even for devices whose effective reading width is the full width of the maximum document that passes, the same effect can be obtained by adjusting the stepped portion to a smaller document width that is frequently used. It will be done. Furthermore, although the embodiment has been described using a single level difference, the same effect can of course be obtained by using two or more level differences to accommodate three or more types of document widths.

C. Effects of the invention The guide surfaces perpendicular to the sheet passing surface of the sheet insertion guide are made left and right, and the center portion is depressed relative to the other left and right portions within the said passing surface, that is, the sheet passing surface of the sheet insertion guide is By using a stepped structure and attaching the stepped part to the guide surface, the width of the maximum document width can be determined using the guides at both ends.
The width of documents corresponding to the effective scanning width, or documents that are smaller than the maximum width and are frequently used, can be guided using both end surfaces of the drop-in area, and the guide of frequently used documents can be determined. Therefore, unnecessary and expensive mechanisms can be omitted, and the device can be made inexpensive.

[Brief explanation of the drawing]

The drawings show a document insertion guide configured according to the present invention as shown in 11.
Fig. 1 is a perspective view of the external appearance, Fig. 2 is a sectional view, and Fig. 3 is a plane view of the facsimile machine with the document insertion guide removed from the document insertion slot. FIG. 1 is a front view of the printed version, and FIG. 5 is a partially cutaway front view of the device with a document insertion guide attached. 4 is a document insertion slot, 5 is a document discharge port, 10 is a document transport roller, 11 is a CS unit, and 13 is a document insertion guide.

Claims (1)

[Claims] (1) A sheet insertion guide for the opening of a device having a sheet insertion opening, which has both end width determining guides on the left and right sides that are perpendicular to the surface through which the sheet to be inserted comes into contact, and the guide width is the width of the sheet insertion The sheet passing surface is not on the same plane as the maximum paper passing width of the device being used, or is several mm wider, and has both left and right end portions that are several mm higher than the center, and the width of the lower center portion is used for effective processing of the device. A sheet insertion guide characterized by being matched to the width or the most frequently used sheet width.