JPS6392558A - Sheet inserting guide - Google Patents

Abstract

PURPOSE:To make a setup surface usable as a sheet mount even if a guide is small, by installing a projecting part which comes into contact with this setup surface and is received at a time when an apparatus body is installed on the setup surface. CONSTITUTION:Each of projections 13h and 13h or a connecting device is formed into semispherical form, and made into a structure insertable, getting over a spherical part, in an end of inserting port 4 at the time of insertion of a guide 13, and that since round holes 15b and 15b to be fitted in the semisphere are installed in the inside of the inserting port, the guide is attachable to an apparatus body free of rotation. In addition, the guide 13 is rotatable owing to these semispheric parts 13h and 13h and these holes 15b and 15b at the side of the inserting port 4, and when a facsimile device is set up on a horizontal plane such as a dest top D or the like, a tip lower surface 13e of the guide 13 is designed so as to be stopped as riding on this horizontal plane. Moreover, the guide rotates even if there is no setup surface at the guide tip part, and a stopper H, receiving the guide so as not to be hung over, is installed in the apparatus body.

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.

① Since the original is placed close to one edge of the original table, there is a guide on only one side, and the original is always inserted in the center of the original table. There are two types, one in which the guides on both sides move according to the width, and recently the latter type, in which the guides at both ends move according to the center width division, is common.

(1) In the case where the guides on both sides move, 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.

・,φ, In general, narrow guides for manuscripts are often fixed to the main body.

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

(2) In many removable devices, the removable position is visible on the outside of the device, and for this reason, in many cases, the removable guide for determining the document width does not enter the inside of the device.

[Problem that the invention seeks to solve]

In the case of a device with a document insertion guide fixed to the main body of the device, in order to downsize the device, the document insertion slot is provided at the lower front of the device, and if the guide is fixed to the main body of 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, which may cause the leading edge of the document to be accidentally touched when inserting the document.
Sometimes I inserted it into that gap, and I had to unnecessarily extend the guide toward me.

Furthermore, in the removable type, the guide is generally treated as an accessory machine, and the positioning of the document in the width direction is determined separately based on the abutment reference of the main body, which makes it impossible to miniaturize the device. Another disadvantage is that the attachment/detachment part is located near the outside of the device, resulting in a large set area when the guide is attached. For this reason, the removable device could only be used as a document insertion guide, and could not be used to narrow the width of the document.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned disadvantages regarding a removable document (sheet) insertion guide.

Summary, Structure of the Invention [Means for Solving the Problems] The present invention is a sheet insertion guide for an opening of a device having a sheet insertion opening, and has one seat insertion opening on both ends of the guide. Equipped with arms that fit inside both ends,
The outer surfaces of both arms and the inner surfaces of both ends of the sheet insertion slot on the device main body side into which the two arms fit are engaged with each other, so that the guide can be freely attached to and detached from the sheet insertion port on the device main body side and can be rotated freely. relatively provided with connecting engagement members, and the height of the arm portion of the guide is smaller than the height of the sheet insertion slot;
The sheet insertion guide is further characterized in that the lower surface of the sheet insertion side end of the guide is provided with a protrusion that is received in contact with the installation surface when the device body is placed on the installation surface. .

[For production]

In other words, the sheet insertion guide attached to the sheet insertion slot on the equipment main body side is freely rotatable around the connection and retention part between the two, and when the equipment main body is placed on an installation surface such as a desk and received, The sheet is connected to the sheet insertion slot on the device main body side and the guide.

Therefore, even if the guide is small, the n side can be used as a sheet stand (original stand).
It can be used as a dustpan, for example, to insert originals. In addition, since the guide is fixed with a light press-fit, it has a moderate frictional force in the direction of rotation and does not easily rattle.Also, even if the device is installed in front of a desk, etc. The guide is received by the stopper and does not fall below the predetermined lower limit rotation point, allowing the guide to move toward the seat (
It becomes usable to insert the original). Therefore, there is no need to strengthen the structural strength required for fixing it to a guiding device body. In addition, in a system that transports documents in a U-turn, such as in the facsimile machine of the embodiment described later, the document transport section is located deep inside the device, so even if the guide is brought as close as possible to the device, the distance between the guide section and the transport section is long, resulting in skew. It has sufficient guiding force to control even the For this reason, it has become possible to provide a device with a very inexpensive structure and a very small footprint.

In addition, with the above configuration, even if excessive force is applied to the sheet insertion guide, the amount of press-in can be set to: Am so that the guide will fall off with an appropriate force, preventing damage to the sheet insertion guide and the main body of the device. It became possible to do so.

〔Example〕

The figures show an example of a facsimile machine equipped with a document insertion guide 13 configured according to the unissued document. FIG. 1 is a perspective view of the overall appearance of the facsimile machine, and FIG. 2 is a cross-sectional view.

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

In the apparatus shown in FIG. 2, reference numeral 10 denotes a document conveyance roller (reading platen roller) with a white circumferential surface built into the front end of the apparatus, and is moved in the direction of the arrow by a drive mechanism (not shown) around a shaft 10a. Rotationally driven. Reference numeral 11 is a close-contact type image sensor unit that can swing freely in contact with the rear surface side of the roller 10 about a support shaft 11a, and is normally held by a tension spring 12 against the rear surface of the roller 10 with a predetermined pressing force. 7) (CS unit) This CS unit incorporates a light source 11b for document illumination such as an LED array, a short focal length lens array 11C5 such as SELFOC (trade name), a photoelectric sensor array lid, etc.

When the document guide plate 13 is placed on a desk surface, a protrusion 13e on the lower surface of the front end side of the document guide plate 13 contacts the desk surface, and communicates the document insertion slot 4 of the device with the desk surface.

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 insert the leading edge of the original fully into the device through the original insertion slot 4. When the original O is inserted into the upper and lower guide plates 14.
5, the document O enters the contact area between the document transport roller 10 and the front plate of the CS unit (CS unit) 11, and the document O passes through the front surface of the CS unit 11 by the rotational transport force of the roller 10 and is continuously transported upward. (The coefficient of friction of the roller 10 is made larger than that of the front surface of the CS unit 11.) When the document O passes through the front surface of the CS unit, the CS unit ll
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 Uni 2ell is guided by the paper discharge guide plates 16-17 and conveyed upward, and exits from the device through the document discharge port 5 that is open on the top surface of the upper device exterior case 1. The original is discharged toward the front of the apparatus, that is, in a U-turn in a direction B opposite to the direction A in which the original is introduced into the apparatus.

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 tray 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 O is sandwiched between the stopped roller 10 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.
It is designed to swing in the direction of moving away from the original, thereby releasing the original from being held in place (releasing the original path).
The document O can be easily pulled out from inside 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 be bent with a small radius of curvature as shown by the two-dot chain line O1 as soon as it comes out of the document ejection port 5, and will be bent to 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.

21 Φ 21a is 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 is the device frame (chassis); 25
25a and 25b are the circuit switches and key tops provided on the printed circuit board, and the key top 25b is inserted through the key top hole drilled on the operation panel surface. It protrudes from the top of the operation panel.

26 is provided on the rear side of the upper device exterior case l,
A recording paper cover 27, which can be opened and closed freely around a shaft 26a, is a roll of thermal recording paper loaded into a storage section 27a in the apparatus, and is attached by opening the cover 26.

Reference numeral 28 indicates a platen roller which is rotated in the direction of the arrow by a drive mechanism (not shown) around a shaft 28a, and 29 indicates a recording paper cover 2.
6, a thermal head holding plate 30 is fitted with an elongated hole in the shaft 29 and supported freely to swing around the shaft 29; 31 is a thermal head mounted on 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 head holding plate 30, and the recording paper cover 26 is attached to the shaft 26.
It also serves as a stopper to hold the thermal head so that it does not come off when it is opened upwards centering on point a and raised. 3
6.36a is a recording paper presence/absence detection sensor and its 7-cut unit.

When the recording paper cover 26 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 the upper side is received. Recording paper 2
7 is fed out and 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 machine 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, 0 is an A5 width original, O
ss indicates an 85 width original.

In the document insertion guide 13, 13a*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.
The rear end side of these is arms 13f and 13f (Figures 3 and 4)
The arm portions 13f to 13f are caused to protrude and extend as shown in FIG. 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 portions 13b and 13b, and is a guide surface for the A5 width original OA5. 13d is a passage surface formed by the crotch part under A51:J at the left part of the center part, and is located in the center with respect to the guides 13a@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 around the engaging portion 13fφ13f 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 indicates that when the tip of the guide 13 is left in a free state without being rested on the desk surface, the guide 13 rotates downward under its own weight as shown by the two-dot chain line around the engaging portions 13f-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 numerals 13f to 13f are arm portions that sometimes enter both ends of the chain 4 when attached to the mouth 4 of the guide 13, and are rear end extensions of the guide side walls 13a, 13a described above. l3g/13g is arm 13f-13
This is the boss constellation outside f. 13h and 13h are hemispherical protrusions provided at the center of these boss seats 13g and 13g.

Reference numerals 15a and 15a are curved rising surfaces that determine the width of the document insertion opening of the paper feed guide 15. 15b@15b is a round hole made 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 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 15b 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 15b, 15b, and the arms 13f, 13f
Because the restoring force of the deflection deformation 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-15b are attached to the document insertion slot 4.
, 13h-15b are connected so as to be freely rotatable. Fourth
The figure shows a slope view of the connected state, and the guide surface 1
3a 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 a rib of about 0.5 days located on the central guide surface 13d. Wide document surface 13 relative to guide surface 13d
b.13b is highly stepped. In addition, since the guide side wall 13a is 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 guide inside the device is accurately Concatenated.

Further, as is clear from FIG. 3, the narrow guide is structured so that it widens as it goes inside, so that even if the document skews a little, it will not climb onto the guide. This is also clear from the perspective view shown in FIG.

Therefore, as shown in the first diagram, the maximum width document S is the guide 1.
3, narrow the width with the guide side walls 13aΦ13a at both ends and insert it into the document insertion slot 4. For documents corresponding to the effective width, or documents OA & which are smaller than the maximum width document and are frequently used, the guide 13 is used to reduce the width. The document is inserted into the document insertion slot 4 by using the wall surfaces 13c and 13c at both ends of the surface 13a. In this example, the width of the stepped portion is set as the effective reading width, but even in a device whose effective reading width is the full width of the maximum passed document, the same effect can be obtained by adjusting the stepped portion to a smaller document width that is frequently used. Furthermore, although this example has been explained 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.

Thus, the document insertion guide 13 of this embodiment is provided with arms 13f-13f at both ends of the document insertion guide, with the front of the arm serving as a guide surface for the edge of the document, and the outer surface of the arm providing light access to the document insertion slot 4 of the main body of the device. It is press-fitted, and the tip of the arm fits inside both ends of the sheet insertion slot on the device main body.
Protrusions 13h and 13h are provided on the outside of the arm, and by deforming the arm, it can be lightly press-fitted into the document insertion slot 4 of the main body of the device and then inserted. The protrusions 13h and 13h of the coupling means have a hemispherical shape so that the guide 13 can be inserted over the spherical surface at the end of the insertion port 4 when inserted, and round holes 15b and 15b that fit into the hemispheres are provided inside the insertion port. Since the guide is provided, the guide can be freely rotated and attached to the main body of the device. Furthermore, the hemispherical portions 13h and 13h and the hole 15b@15 on the insertion port 4 side
The guide 13 is rotatable in b, and has a structure such that when the facsimile machine is installed on a horizontal surface such as a desk surface, the lower end surface 13e of the guide 13 rests on the horizontal surface. In addition, a stopper is provided on the main body of the Ht-R device to receive the guide so that the guide does not rotate even if there is no installation surface at the tip end of the guide.

Place hemispherical protrusions 13h on the inner surface of both ends of the document insertion slot 4 on the main body of the device, and insert the hemispherical protrusions 13h into the round holes ISB 15 into which they fit.
b may be provided on the arm 13f@13f side of the guide 13, or, for example, the arms 13f-13f may be used as forks and pins may be brought out from both sides on the device main body side to engage them, or a ball clip may be provided on the device main body side. A groove may be provided on the arm side, or a pin may be put out on the arm and engaged with a hole on the main body side.When the guide rotates up and down, the rotation regulation (stopper) G and H can be attached to the lower case 2. and arm part 13f@
13f, this is done by abutting the lower surfaces of the lower case 2 and the guide 13 against each other, but it is also possible to provide separate protrusions for each, and a similar method can be used if the device has a structure that can be rotated up and down when installed on a horizontal surface. Effects can be obtained.

C. Effects of the Invention The sheet insertion guide attached to the sheet insertion slot on the device main body side is freely rotatable around the connecting engagement portion between the two, so that when the device main body is placed on an installation surface such as a desk, the guide The leading end rests on the installation surface and is received, and the sheet is connected in series through the installation surface, the sheet insertion opening on the device main body side, and the guide. Therefore, even if the guide is small, the installation surface can be used as a sheet table (original table), and it has become possible to insert a document, for example, as a dustpan. In addition, the guide is fixed with a light press-fit, so it has a moderate frictional force in the direction of rotation and does not easily rattle, even if the device is installed in front of a desk, etc. due to the installation surface.

The guide is stopped by a stopper, so that the sheet (original) can be inserted without dropping below a predetermined lower limit rotation point. Therefore, reinforcement of the structural strength required for fixing the guide to the main body of the device is not required. In addition, in the facsimile machine of the above embodiment, which transports documents in a U-turn, the document transport section is located deep inside the device, so even if the guide is brought as close as possible to the device, the distance between the guide section and the transport section is long, resulting in skew. It has sufficient guiding force to control the For this reason, it has become possible to provide a device with a very inexpensive structure and a very small footprint.

In addition, with the above configuration, even if excessive force is applied to the sheet insertion guide, the amount of press-fitting can be adjusted so that the guide will fall off with an appropriate amount of force, preventing damage to the sheet insertion guide and the main body of the device. It became possible to do so.

[Brief explanation of the drawing]

The drawings show an example of a facsimile machine equipped with a document insertion guide configured according to the present invention. FIG. 1 is an external oblique view, FIG. 2 is a sectional view, and FIG. FIG. 4 is a plan view of the device in a detached state, FIG. 4 is a perspective view of the device in a connected state, and FIG. 5 is a partially cutaway front view of the device with the document insertion guide attached. 4 is a document insertion slot, 5 is a document discharge port, 1o 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, in which both ends of the guide are provided with arms that fit inside both ends of the sheet insertion opening of the device, and the outer side of both arms and , an engaging member that engages with the inner surface of both ends of the sheet insertion opening on the equipment main body side into which the two arms are inserted, and connects the guide to the sheet insertion opening on the equipment main body side in a freely attachable/detachable and rotatable manner. The height of the arm part of the guide is smaller than the height of the sheet insertion slot, and the lower side of the sheet insertion side end of the guide is provided so that when the main body of the device is placed on the installation surface, it is in contact with the installation surface. A sheet insertion guide characterized by having a protrusion that can be received.