JPH09304983A - Paper conveyance device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a paper conveyance device which detects opening and closing of an operation section provided on a paper conveyance passage property at low cost. SOLUTION: When an operation section 3 is closed, an actuator 21 provided in the operation section 3 brings a projection part 23 formed in a main body case into contact with a receive face 21b of the actuator 21, and a contact end part 21a of the actuator 21 is away from an open and close switch 20 provided on an operation port substrate 6 in the operation section 3 and is in off condition. When the operation section 3 is opened, the projection part 23 leaves the receive face 21b, and the contact end part 21a of the actuator 21 moves in the direction of the open and close switch 20 on the operation port substrate 6 due to its elasticity. The contact end part 21a of the actuator 21 pushes the open and close switch 20 to turn on the open and close switch 20 and detect that the operation section 3 is opened.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet conveying device, and more specifically, a sheet conveying path is provided below an operating portion, and the opening / closing of the operating portion on the sheet conveying path can be detected appropriately and inexpensively. The present invention relates to a paper transport device.

[0002]

2. Description of the Related Art In a sheet conveying apparatus such as a facsimile apparatus, a scanner apparatus, a copying apparatus and a printer apparatus, an original is conveyed to an original reading section, and an original whose image is read by the original reading section is further conveyed and discharged. And a recording paper conveyance path that conveys the recording paper for recording and discharges the recording paper that has completed recording to the outside of the apparatus. The paper transport path must be opened in order to clear jams of originals and recording paper and to clean them.

Conventionally, the cover for covering the sheet conveying path is opened and closed by using a dedicated detecting means such as a micro switch, a photo sensor or a lead sensor.

[0004]

However, in such a conventional sheet conveying apparatus, since the opening / closing of the cover covering the sheet conveying path is detected by the dedicated detecting means, the opening / closing of the cover is performed. Since it is necessary to provide a dedicated detection means for detecting, the cost is high, and it is necessary to connect the control means for performing various controls based on the detection signal detected by the dedicated detection means with a dedicated harness, so that the paper conveyance The assembly of the device was poor, which was a problem in improving productivity.

In view of this, the invention according to claim 1 has a paper conveyance path at the lower part of the operation section, the path of which is opened and closed by opening and closing the operation section. An open / close switch that detects the opening / closing of the operating part by operating the open / close switch formed on the circuit board on which the key switch that detects the operation of the operation key of the operating part is formed by the switch operation. It is an object of the present invention to provide a sheet transporting device which is inexpensive and has a good assembling property, in which the circuit board of the operation unit is formed in common and a dedicated harness is omitted.

According to a second aspect of the present invention, a maximum open switch for detecting the maximum opening of the operation section is provided at the lower part of the operation section, which has a sheet conveyance path whose path is opened and closed by opening and closing the operation section. Is formed on the circuit board on which the key switch for detecting the operation of the operation key of the operation section is formed, and the maximum opening actuator is switched by the maximum opening actuator when the operation section is fully opened. A dedicated switch that detects the maximum opening is formed by sharing the circuit board of the operating unit, and the dedicated harness can be omitted to detect the maximum opening of the operating unit at low cost, and paper with good assemblability. It is intended to provide a carrier device.

According to a third aspect of the present invention, at least two key switches of the plurality of key switches of the operation unit are used as open / close switches for detecting the opening / closing of the operation unit, and the two or more key switches are operated by an actuator. By operating the switches at the same time, the exclusive switch and the exclusive harness for detecting the opening and closing of the operating section are omitted,
It is an object of the present invention to provide a sheet conveying device that is more inexpensive and has a good assembling property.

According to a fourth aspect of the present invention, the maximum open switch for detecting the maximum open of the operating portion uses at least one key switch of the plurality of key switches of the operating portion, and the maximum open actuator is used for the one switch. By operating the above key switches, a dedicated switch for detecting the maximum opening of the operation unit and a dedicated harness are omitted, and it is possible to provide a sheet conveyance device that is more inexpensive and has a good assembling property. Has an aim.

[0009]

According to a first aspect of the present invention, there is provided a paper transporting apparatus, wherein a plurality of operation keys are provided and a key switch for detecting an operation of the operation keys is provided on a circuit board. A paper transport device is provided in which a paper transport path for transporting paper is formed, the operation section is provided to be openable and closable, and the paper transport path can be opened by opening the operation section on the circuit board. The above-described object is achieved by including an opening / closing switch provided and an actuator for switching the opening / closing switch in conjunction with opening / closing of the operation unit.

According to the above construction, the actuator having the sheet conveying path whose path is opened / closed by opening / closing the operation section at the lower part of the operation section and opening / closing the operation section in conjunction with opening / closing of the operation section In this case, the open / close switch formed on the circuit board on which the key switch for detecting the operation of the operation key of the operation unit is formed is detected by the switch operation. It can be formed using the board, omitting the dedicated harness,
A paper transport device that detects opening and closing of the operating unit is inexpensive and
It is possible to make it easy to assemble.

In this case, for example, as described in claim 2, the paper transport apparatus switches the maximum open switch provided on the circuit board and the maximum open switch when the operation section is fully opened. And a maximum opening actuator to be operated.

According to the above construction, the operation section is provided with a maximum open switch for detecting the maximum opening of the operation section, which has a sheet conveying path whose path is opened and closed by opening and closing the operation section. It is formed on the circuit board on which the key switch for detecting the operation of the operation key is formed, and the maximum opening actuator is switched by the maximum opening actuator when the operation unit is fully opened, so the maximum opening of the operation unit is detected. It is possible to form a dedicated switch that shares the circuit board of the operation part, omits the dedicated harness, can detect the maximum opening of the operation part at low cost, and makes the assemblability good. be able to.

Further, for example, as described in claim 3, as the opening / closing switch, at least two key switches provided on the circuit board are used, and the actuator is interlocked with opening / closing of the operation portion. And then 2
One or more key switches may be simultaneously switched.

According to the above construction, the open / close switch for detecting the opening / closing of the operating portion is provided as one of the plurality of key switches of the operating portion.
Since at least two key switches are used and the two or more key switches are simultaneously operated by the actuator, a dedicated switch for detecting the opening / closing of the operation section and a dedicated harness can be omitted, and the opening / closing of the operation section can be omitted. It is possible to further reduce the cost of the sheet conveying device that detects the sheet and to make it easy to assemble.

Further, for example, as described in claim 4, at least one of the key switches provided on the circuit board is used as the maximum open switch, and the maximum open actuator is provided in the operation section. The one or more key switches may be switched when they are fully opened.

According to the above configuration, the maximum open switch for detecting the maximum open of the operating portion is at least one key switch among the plurality of key switches of the operating portion, and the one or more key switches are operated by the actuator. Since the switch is operated, a dedicated switch for detecting the maximum opening of the operating section and a dedicated harness can be omitted, and the paper transporting device for detecting the maximum opening of the operating section can be made even more inexpensive and easy to assemble. It can be anything.

[0017]

Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. It should be noted that the embodiments described below are preferred embodiments of the present invention, and therefore, various technically preferable limitations are added. However, the scope of the present invention is not limited to the following description. The embodiments are not limited to these embodiments unless otherwise specified.

FIGS. 1 to 4 are views showing a first embodiment of a sheet conveying apparatus according to the present invention. In the present embodiment, an opening / closing switch provided on a substrate of the operating section opens / closes the operating section. The switch operation is performed according to the above, and corresponds to claim 1.

FIG. 1 and FIG. 2 are side sectional views of a facsimile machine 1 to which the first embodiment of the paper carrying device of the present invention is applied.

Referring to FIG. 1, in the facsimile apparatus 1, an operation unit 3 is provided on the front side (left side in FIG. 1) of the main body case 2 so as to be opened and closed by the main body case 2.
A document placing table 4 is formed on an upper portion on the rear side (right side in FIG. 1) of the.

The operation unit 3 includes a plurality of operation keys 5 such as a numeric keypad and a start key, and a display (for example, a liquid crystal display) (not shown), and various commands such as a transmission operation are input from the operation keys 5. Then, the contents of the command input from the operation keys 5 and various information notified from the facsimile device 1 to the operator are displayed on the display. When the operation key 5 is pressed, a tact switch (key switch) 7 formed on the operation port substrate 6 is turned on, and when released, it is turned off.

A document transport path (paper transport path) 8 is formed between the document mounting table 4 and the lower part of the main body case 2 and the operation section 3, and the document transport path 8 has a document separating roller 9 provided therein. 1, a document separation pad 10, a main transport roller 11, a document reading unit 12, a transport roller 13 and the like.

The operation section 3 is openable and closable so that the main body case 2 can be opened and closed.
As shown in FIG. 2, when the operation unit 3 is opened, the document feeding path 8 is opened.

When a plurality of originals are set on the original placing table 4, the original separating roller 9 rotates to separate the originals one by one together with the original separating pad 10 and the original conveying path 8 is used as a main conveying roller. Send in 11 directions.

When the original is conveyed to the main conveying roller 11, the main conveying roller 11 conveys the original to the original reading section 12, and the original conveyed to the original reading section 12 is conveyed to the original reading section 12 by the conveying roller 13. The document is read from the document reading unit 12 while being conveyed while being pressed against. The document whose image has been read by the document reading unit 12 is discharged to the outside of the main body case 2 by the transport roller 13.

A roll-shaped recording paper 14 is housed in the central portion of the main body case 2, and the roll-shaped recording paper 14 is attached in the direction of the platen roller 16 by a platen roller 16 and a spring 17 via a decurling portion 15. The image is recorded by the thermal head 18 while being conveyed between the energized thermal head 18 and the platen roller 16.
The roll-shaped recording paper 14 on which the image is recorded is cut to the image information size by the shuttle cutter 19 and discharged to the outside of the main body case 2.

As shown in FIG. 3, the operation section 3 is provided on the operation port board 6 (circuit board) on which a tact switch 7 for detecting the operation of the operation key 5 is provided.
An open / close switch 20 for detecting the open / close state is provided. As the open / close switch 20, the same tact switch as the tact switch 7 for detecting the operation of the operation key 5 is used.

The contact end 21a of the tip of the actuator 21 is in contact with the open / close switch 20, and the base end of the actuator 21 is attached to the boss portion 3b formed on the cover 3a of the operation portion 3 by the screw 22. It is fixed. The actuator 21 is formed of an insulating member having a predetermined elasticity, and the receiving surface 21b protruding downward (toward the main body case 2) is formed at the central portion in the longitudinal direction of the actuator 21.
Are formed. When the operating portion 3 is closed, the receiving surface 21b comes into contact with the protruding portion 23 formed on the main body case 2 as shown in FIG.
The protrusions 23 are urged upward via the receiving surface 21b, that is, the contact end 21a is urged away from the opening / closing switch 20, the contact end 21a is separated from the opening / closing switch 20, and the opening / closing switch 20 is turned off.

Next, the operation of the present embodiment will be described. The facsimile apparatus 1 opens the document conveying path 8 by opening the operation unit 3, and opens / closes the operation unit 3 by operating an open / close switch 6 provided on an operation port board 6 of the operation unit 3 by opening / closing the operation unit 3. 21 is characterized in that it is turned on / off by 21 for detection.

That is, in the facsimile apparatus 1, when a plurality of originals are set on the original placing table 4, when the originals are set on the original placing table 4, the original separating roller 9 rotates to separate the originals. The roller 9 separates the originals one by one together with the original separating pad 10 and sends out the original conveying path 8 toward the main conveying roller 11. When a document is conveyed to the main conveyance roller 11, the main conveyance roller 11 reads the document and reads the document.
The document is conveyed to the document reading unit 12 while being conveyed while being pressed against the document reading unit 12 by the conveyance rollers 13, and the image of the document is read by the document reading unit 12. The original whose image is read by the original reading unit 12 is
It is discharged to the outside of the main body case 2 by the transport roller 13.

When the document separation roller 9, the main conveyance roller 11 and the conveyance roller 13 convey the document, if the document is clogged and the document conveyance is stopped, the document is conveyed on the document conveyance path 8. However, the stopped original can be properly removed by opening the operation unit 3.

The actuator 21 provided in the operating section 3 has the actuator 21 as shown in FIG. 4 when the operating section 3 is closed as shown in FIG.
Projections 23 formed on the body case 2 on the receiving surface 21b of the
Are in contact with each other and are urged upward by the protrusion 23, and the contact end 21a of the actuator 21 is separated from the opening / closing switch 20 provided on the operation port substrate 6 and is in the off state.

When the document skew occurs as described above and the operating portion 3 is opened as shown in FIG. 2, the projection 23 is separated from the receiving surface 21b and the actuator 21 is opened as shown in FIG. Causes the contact end 21a to move toward the open / close switch 20 of the operation port substrate 6 due to its elasticity. Therefore, the contact end 21a of the actuator 21 pushes the open / close switch 20 to turn on the open / close switch 20,
It is detected that the operation unit 3 is opened.

Therefore, since the open / close switch 20 is provided on the operation port board 6, there is no need to provide a dedicated board or a harness for swiveling, and the operation portion 3 is closed with a simple and inexpensive structure. It is possible to detect whether the facsimile apparatus 1 is open or the original conveying path 8 is opened, so that the facsimile apparatus 1 can be made inexpensive.

FIGS. 5 to 7 are views showing a second embodiment of the sheet conveying apparatus according to the present invention. In this embodiment, two tact switches for detecting a key operation of an operation portion are operated. It is used as an open / close switch that detects the opening / closing of the unit.
This corresponds to claim 3.

This embodiment is applied to the same facsimile machine as that of the first embodiment. In the description of this embodiment, the same components as those of the above embodiment are designated by the same reference numerals. The detailed description thereof will be omitted.

FIG. 5 is a partially enlarged sectional view of the operation section 3 of the facsimile apparatus 30 to which the second embodiment of the sheet conveying apparatus of the present invention is applied, and the operation section 3 is similar to the above-mentioned embodiment. Further, the actuator 31 is housed in the cover 3a. The base end portion of the actuator 31 is fixed to the boss portion 3b formed on the cover 3a with a screw 22, and the contact end portion 31a, which is the free end portion of the actuator 31, has an operating portion as shown in FIG. Notch part 31b having a shape through which the feet of the predetermined two operation keys 5 of FIG.
Are formed. The foot of the operation key 5 turns on / off the tact switch 7 of the operation key 5 by operating the operation key 5.
The cutout portion 31b of the actuator 31 is penetrated so that it can be turned off.

The actuator 31 is formed of a member having a predetermined elasticity, and the contact end 31a of the actuator 31 on which the notch 31b is formed is in contact with the two tact switches 7. Actuator 31
A receiving surface 31c projecting downward (toward the main body case 2) is formed in the central portion in the longitudinal direction. This receiving surface 31
When the operating portion 3 is closed, c contacts the protrusion 32 formed on the main body case 2 as shown in FIG. 7.
Therefore, when the operating portion 3 is closed, the actuator 31 is urged upward by the protrusion 32 via the receiving surface 31c, that is, in the direction in which the contact end 31a moves away from the tact switch 7, and the contact end 31a moves. The tact switch 7 is turned off after being separated from the tact switch 7. The screw 22 penetrates a fixing hole 31d (see FIG. 6) formed in the base end portion of the actuator 31 to fix the actuator 31 to the boss portion 3b.

That is, the two tact switches 7 for detecting ON / OFF of two operation keys 5 of the plurality of operation keys 5 of the operation unit 3 are used as open / close switches for detecting opening / closing of the operation unit 3.

Next, the operation of the present embodiment will be described. The facsimile apparatus 1 includes an actuator 31 that operates two tact switches 7 that detect an operation of an operation key 5 provided on an operation port board 6 of the operation unit 3 by opening and closing the operation unit 3.
It is characterized in that the opening / closing of the operation unit 3 is detected by turning on / off by.

That is, the actuator 31 provided on the operating portion 3 has a receiving surface 31c of the actuator 31 when the operating portion 3 is closed, as shown in FIG.
The protrusion 32 formed on the main body case 2 comes into contact with and is urged upward by the protrusion 32, and the contact end 31 a of the actuator 31 is separated from the two tact switches 7 provided on the operation port substrate 6, Two tact switches 7
Is in the off state.

Since the foot portion of the operation key 5 penetrates the cutout portion 31b of the contact end portion 31a of the actuator 31 when the operation portion 3 is closed, the operation key 5 is the normal operation key 5 In the same manner as above, when the operation key 5 is pressed, the foot portion of the operation key 5 moves downward in the cutout portion 31b of the actuator 31 to turn on the tact switch 7.

When a document skew occurs and the operating section 3 is opened, the projection 32 is separated from the receiving surface 31c, and the actuator 31 is elastically contacted with the contact end 31a, as shown in FIG. Moves toward the tact switch 7 on the operation port board 6. Therefore, the contact end portion 31a of the actuator 31 presses the two tact switches 7 at the same time to turn on the two tact switches 7 at the same time,
It is detected that the operation unit 3 is opened.

Therefore, since the open / close switch for detecting the opening / closing of the operation unit 3 is the two tact switches 7 for detecting the operation of the operation key 5 provided on the operation port board 6 of the operation unit 3, the operation is performed. It is not necessary to provide a dedicated board for detecting opening / closing of the section 3 or a harness for swiveling, and it is not necessary to provide a dedicated switch.
With the simpler and cheaper structure, the operation unit 3
It is possible to detect whether the facsimile machine 1 is closed or opened to open the document conveying path 8, and the facsimile apparatus 1 can be made even more inexpensive. In addition, the actuator 31 allows two tact switches 7
By simultaneously turning on / off, the opening / closing of the operation unit 3 is detected, and in the facsimile device 1, normally,
Since the two operation keys 5 of the operation unit 3 are not operated at the same time, opening / closing of the operation unit 3 can be appropriately detected.

In the facsimile apparatus 1, when there is an operation that requires operating the operation keys 5 of the two operation units 3 at the same time, the two tacts of the operation keys 5 other than the operation keys 5 used for the operation are used. By using the switch 7 to detect the opening / closing of the operation unit 3, the opening / closing of the operation unit 3 can be appropriately detected.

Further, in the present embodiment, the opening / closing of the operating portion 3 is detected by simultaneously turning on / off the two tact switches 7 by the actuator 31.
The number of the tact switches 7 to be turned on / off is not limited to two, and may be two or more as long as the number of opening / closing of the operation unit 3 can be detected appropriately and inexpensively.

FIGS. 8 to 10 are views showing a third embodiment of the paper transporting apparatus of the present invention. In this embodiment, it is detected that the operation portion is opened to the maximum, and a key operation is detected. The detection is performed by using one tact switch for use in
And claim 4.

The present embodiment is applied to the same facsimile machine as the first and second embodiments. In the description of the present embodiment, the first and second embodiments will be described. The same components as those of the embodiment are designated by the same reference numerals, and detailed description thereof will be omitted.

FIG. 8 is a partially enlarged perspective view of the inside of the operation section 3 of the facsimile apparatus 40 to which the third embodiment of the sheet conveying apparatus of the present invention is applied. The operation section 3 is as shown in FIG. In addition, the actuator 31 similar to that of the second embodiment is housed in the cover 3a, and the base end portion of the actuator 31 has a boss formed on the cover 3a as shown in FIG. 5 or 7. It is fixed to the portion 3b with a screw 22. As shown in FIG. 6, the contact end 31 a, which is the free end of the actuator 31, has a notch 31 having a shape that sandwiches the feet of two predetermined operation keys 5 of the operation unit 3.
b is formed, and the foot of the operation key 5 is
The tactile switch 7 of the operation key 5 can be turned on / off by the operation of the.

The actuator 31 is formed of an insulating member having a predetermined elasticity, and the contact end 31a of the actuator 31 on which the notch 31b is formed has the above-mentioned 2
It is in contact with each tact switch 7. At the center of the actuator 31 in the longitudinal direction, downward (toward the main body case 2).
A receiving surface 31c is formed so as to project to the bottom. When the operating portion 3 is closed, the receiving surface 31c abuts the protruding portion 32 formed on the main body case 2 as shown in FIG. 7, so that the actuator 31 projects through the receiving surface 31c. The portion 32 urges the contact end 31 a upward, that is, in the direction away from the tact switch 7, and the contact end 31 a
a is separated from the tact switch 7, and the tact switch 7 is turned off. The screw 22 penetrates a fixing hole 31d formed in the base end portion of the actuator 31 to fix the actuator 31 to the boss portion 3b. That is, turning on / off of two operation keys 5 of the plurality of operation keys 5 of the operation unit 3.
The two tact switches 7 for detecting the OFF state are used as the opening / closing switches for detecting the opening / closing of the operation unit 3.

Further, a maximum open detection actuator (maximum open actuator) is provided at a predetermined interval with respect to a tact switch (maximum open switch) 7 for detecting operation of another operation key 5 provided on the operation port board 6. A contact end portion 41a which is a free end portion of 41 is provided, and a cutout portion 41b through which the foot portion of the operation key 5 can penetrate is formed in the contact end portion 41a. An arm 41c extending below the operation port substrate 6 is formed at the free end of the maximum open detection actuator 41, and a receiving surface 41d is formed at the tip of the arm 41c. A fixing hole 41e is formed in the base end portion of the maximum open detection actuator 41, and the maximum open detection actuator 41 is fixed to the cover 3a of the operation portion 3 with a screw (not shown) penetrating the fixed hole 41e. . The maximum open detection actuator 41 is formed of an insulating member having a predetermined elasticity, and when the operating portion 3 is closed, the maximum open detection actuator 41 is separated from the tact switch 7 and keeps the tact switch 7 in an off state.

In the main body case 3a, as shown in FIG.
When the operation portion 3 is opened to the maximum extent (maximum opening time), the projection portion 42 that engages with the receiving surface 41d of the maximum opening detection actuator 41 is formed, and the maximum opening detection actuator 4 is formed.
The receiving surface 41d of No. 1 has an engaging portion 42a of the protrusion 42.
Engage. The maximum open detection actuator 41 is configured such that when the operating section 3 is opened to the maximum extent, the engaging section 42a of the protrusion 42 is formed.
Engages with the receiving surface 41d and pulls the maximum open detection actuator 41 in the direction of the operation port substrate 6, and the contact end portion 41a of the maximum open detection actuator 41 is moved to the tact switch 7
Press to detect that the operation unit 3 has been opened to the maximum open state.

The maximum open detection actuator 4
The operation key 5 located at the contact end portion 41a of No. 1 has its foot portion penetrating the cutout portion 41b of the maximum-open detection actuator 41. Therefore, depending on the operation of the operation key 5, the foot portion of the operation key 5 is operated. When the tact switch 7 is pressed, the operation of the operation key 5 can be detected by the tact switch 7.

Next, the operation of the present embodiment will be described. The facsimile apparatus 1 includes an actuator 31 that operates two tact switches 7 that detect an operation of an operation key 5 provided on an operation port board 6 of the operation unit 3 by opening and closing the operation unit 3.
One tact switch for detecting the opening / closing of the operation unit 3 by detecting the operation of the operation key 5 provided on the operation port board 6 of the operation unit 3 while detecting the opening / closing of the operation unit 3 by 7 is turned on / off by the maximum open detection actuator 41 that operates in the maximum open state of the operation unit 3,
The feature is in the detection.

That is, as shown in FIG. 5, the actuator 31 provided on the operating portion 3 has a receiving surface 31c of the actuator 31 when the operating portion 3 is closed.
The protrusion 32 formed on the main body case 2 comes into contact with the main body case 2 and is urged upward by the protrusion 32, so that the contact end 31 a of the actuator 31 is separated from the tact switch 7 provided on the operation port substrate 6 and is separated into two. The tact switch 7 is off. In addition, the maximum open detection actuator 4
1 indicates that when the operation portion 3 is closed, as shown in FIG. 9, the receiving surface 41 of the maximum open detection actuator 41 is
d and the engaging portion 42a of the protrusion 42 are separated from each other, and the contact end portion 41a of the maximum open detection actuator 41 is moved to the tact switch 7
The tact switch 7 is in the off state.

With the operating portion 3 closed, the foot portion of the operation key 5 penetrates the notch portion 31b of the contact end portion 31a of the actuator 31, and the foot portion of the operation key 5 is a maximum open detection actuator. Since the notch 41b of the operation key 41 penetrates the operation key 5, the operation key 5 can be operated in the same manner as the normal operation key 5, and when the operation key 5 is pressed, the foot of the operation key 5 moves to the actuator. Notch 3 of 31
The tact switch 7 is turned on by moving downward in 1b or in the notch portion 41b of the maximum open detection actuator 41.

When the manuscript is skewed and the operation section 3 is opened, as shown in FIG.
Is separated from the receiving surface 31c and the elasticity of the actuator 31 causes the contact end 31a to move toward the tact switch 7 of the operation port substrate 6. Therefore, the contact end portion 31a of the actuator 31 presses the two tact switches 7 at the same time to turn on the two tact switches 7 at the same time to detect that the operation unit 3 is opened.

When the operating portion 3 is further opened to the maximum open position, the engaging portion 42a of the protruding portion 42 causes the receiving surface 41 of the maximum open detecting actuator 41 as shown in FIG.
that the maximum open detection actuator 41 is moved toward the operation port board 6 by engaging with d, the contact end portion 41a of the maximum open detection actuator 41 pushes the tact switch 7, and the operation portion 3 is opened to the maximum open position. To detect. That is, the tactile switches 7 for detecting that the operating unit 3 is opened and the one tactile switch 7 for detecting the maximum opening are simultaneously turned on, so that the operating unit 3 is operated. It can be detected that it has been opened to the maximum open position.

Therefore, since the open / close switch for detecting the opening / closing of the operation unit 3 is the two tact switches 7 for detecting the operation of the operation key 5 provided on the operation port board 6 of the operation unit 3. It is not necessary to provide a dedicated board or a harness for swiveling, but it is not necessary to provide a dedicated opening / closing switch, and is the operating unit 3 closed by a simpler and cheaper configuration? It is possible to detect whether or not the document conveying path 8 is opened, so that the facsimile device 40 can be made more inexpensive.

Further, when cleaning the original conveying path 8 under the operation unit 3 or cleaning various rollers, conventionally, a cleaning mode operation such as rotating a predetermined amount of a roller by pressing a specific key is performed. However, in such a case, by opening the operation unit 3 to the maximum extent, it is possible to automatically detect that the operation unit 3 is opened to the maximum extent and perform the cleaning mode operation. . The maximum open switch for detecting the maximum open of the operation unit 3 is the tact switch 7 for detecting the operation of the operation key 5 provided on the operation port board 6 of the operation unit 3, and thus the operation is performed. It is not necessary to provide a dedicated board or harness for swiveling in order to detect the maximum opening of a part, and it is not necessary to provide a dedicated maximum opening switch, so it is simpler and cheaper. With the structure, it is possible to detect whether or not the operation unit 3 is opened to the maximum extent, and the facsimile device 40 can be made more inexpensive.

Further, the actuator 31 and the maximum open detection actuator 41 simultaneously turn on the three tactile switches 7 to detect the maximum open state of the operation unit 3, and in the facsimile apparatus 1, the operation unit is normally operated. Since the three operation keys 5 of No. 3 are not operated at the same time, the maximum open state of the operation unit 3 can be appropriately detected.

In the facsimile apparatus 40, when there is an operation that requires operating the operation keys 5 of the two or three operation units 3 at the same time, the operation keys 5 other than the operation keys 5 used for the operation are operated. By utilizing the two or three tact switches 7 for detecting the opening / closing or the maximum opening of the operating unit 3, it is possible to appropriately detect the opening / closing or the maximum opening of the operating unit 3.

Although the invention made by the present inventor has been specifically described based on the preferred embodiments, the present invention is not limited to the above, and various modifications can be made without departing from the scope of the invention. It goes without saying that it is possible.

For example, in each of the above-described embodiments, the case where the invention is applied to the facsimile machine has been described, but the invention is not limited to the facsimile machine, and can be applied to general paper conveying machines such as a scanner, a copying machine and a printer. , Can be applied as well.

Further, in the second and third embodiments, the tact switch 7 is provided on the operation port board 6 of the operation section 3, and the tact switch 7 is used for the operation section 3.
I explained the case of using it for the open / close switch that detects the opening and closing of the switch and the maximum open switch, but the switch is not limited to the tact switch, but any switch that can be used as a key switch such as a rubber switch Can even be used.

[0066]

According to the paper transporting apparatus of the present invention, a paper transporting path whose path is opened and closed by opening and closing the operating section is provided at the lower part of the operating section, and the opening and closing of the operating section is performed. The opening / closing switch formed on the circuit board on which the key switch for detecting the operation of the operation key of the operation unit is formed by the switch operation is detected by the actuator linked with the opening / closing of the operation unit. An open / close switch for detecting the open / close state can be formed by using the circuit board of the operation unit, a dedicated harness can be omitted, and a paper transport device for detecting the open / close of the operation unit can be inexpensively and easily assembled. Can be

According to the second aspect of the present invention, there is provided a paper conveyance path at the lower part of the operation section, the path of which is opened and closed by opening and closing the operation section, and the maximum opening of the operation section is achieved. The maximum open switch to be detected is formed on the circuit board on which the key switch for detecting the operation of the operation key of the operation section is formed, and the maximum open switch is operated by the maximum open actuator when the operation section is fully opened. , A dedicated switch for detecting the maximum opening of the operating section can be formed by sharing the circuit board of the operating section, and the dedicated harness can be omitted, and the maximum opening of the operating section can be detected at low cost. It is possible to improve the assemblability.

According to the third aspect of the present invention, the opening / closing switch for detecting the opening / closing of the operating portion is formed by using at least two key switches of the plurality of key switches of the operating portion and using an actuator. Since two or more key switches are operated simultaneously,
A dedicated switch for detecting the opening / closing of the operation unit and a dedicated harness can be omitted, and the sheet conveying device for detecting the opening / closing of the operation unit can be made even more inexpensive and easy to assemble.

According to the fourth aspect of the present invention, the maximum opening switch for detecting the maximum opening of the operating section is the at least one key switch among the plurality of key switches of the operating section, and the actuator is the same. Since the one or more key switches are operated by the switch, the dedicated switch for detecting the maximum opening of the operation unit and the dedicated harness can be omitted, and the sheet conveying device for detecting the maximum opening of the operation unit can be further inexpensive. In addition, the assemblability can be improved.

[Brief description of drawings]

FIG. 1 is a side sectional view of a facsimile machine to which a first embodiment of a sheet conveying device of the invention is applied.

FIG. 2 is a side sectional view of the facsimile apparatus shown in FIG.

3 is an enlarged side cross-sectional view of a main part of the facsimile apparatus shown in FIG. 1 in a state in which an operation part is opened.

FIG. 4 is an enlarged side cross-sectional view of a main part of the facsimile apparatus shown in FIG. 1 in a state where an operation part is closed.

FIG. 5 is an enlarged side cross-sectional view of an essential part of the facsimile apparatus to which the second embodiment of the sheet conveying apparatus according to the invention is applied, in which the operation section is open.

FIG. 6 is an exploded perspective view of a main part of the actuator and the operation port board of FIG.

7 is an enlarged side cross-sectional view of a main part of the facsimile apparatus shown in FIG.

FIG. 8 is an exploded perspective view of essential parts of an actuator and an operation port board of an operation unit of a facsimile apparatus to which a third embodiment of a sheet conveying device of the invention is applied.

9 is an enlarged side cross-sectional view of an essential part of the facsimile apparatus shown in FIG. 8 in a state where an operation portion is closed.

10 is an enlarged side sectional view of an essential part of the facsimile apparatus shown in FIG.

[Explanation of symbols]

 1, 30 and 40 Facsimile device 2 Main body case 3 Operation part 3a Cover 3b Boss part 4 Original placing table 5 Operation keys 6 Operation port board 7 Tact switch 8 Original conveying path 9 Original separating roller 10 Original separating pad 11 Main conveying roller 12 Original reading Part 13 Conveyor Roller 14 Rolled Recording Paper 15 Decal Part 16 Platen Roller 17 Spring 18 Thermal Head 19 Shuttle Cutter 20 Open / Close Switch 21 Actuator 21a Contact End 21b Receiving Surface 22 Screw 23 Projection 31 Actuator 31a Contact End 31b Notch 31c Receiving surface 31d Fixing hole 32 Projection 41 Maximum opening detection actuator 41a Contact end 41b Notch 41c Arm 41d Receiving surface 41e Fixing hole 42 Projection 42a Engagement

Claims (4)

[Claims] 1. A paper transport path for transporting a paper is formed below an operating unit provided with a plurality of operation keys and a key switch for detecting the operation of the operation keys, the switch being formed on the circuit board.
A paper conveyance device in which the operation section is provided to be openable and closable, and the paper conveyance path can be opened by opening the operation section, and an opening / closing switch provided on the circuit board,
An actuator for switching the opening / closing switch in conjunction with opening / closing of the operation unit, a sheet transporting device. 2. The paper transporting device comprises: a maximum open switch provided on the circuit board;
A maximum opening actuator for switching the maximum opening switch, further comprising:
The paper transport device described. 3. The at least two key switches provided on the circuit board are used as the open / close switch, and the actuator operates the two or more key switches in conjunction with opening / closing of the operation unit. The sheet conveying apparatus according to claim 1 or 2, wherein the sheets are simultaneously switched. 4. The at least one key switch provided on the circuit board is used as the maximum open switch, and the maximum open actuator operates the one or more key switches when the operation section is fully opened. The sheet conveying device according to claim 2, wherein the sheet conveying device is operated by a switch.