JPS5893071A - Semiautomatic original feeding and discharging device for electrostatic copying machine - Google Patents

Abstract

PURPOSE:To facilitate the manual setting of an original as well as the deletion of the jammed original, by turning an original carrying mechanism from the original setting surface and locking the mechamism at a prescribed position. CONSTITUTION:An original is set through an original inserting slit 14 and then carried until it hits a control member 28. When a detector detects the original, a following roll 26b has a displacement and coacts with a primary roll 26a to hold and carry the original. At the same time, the member 28 also have a displacement to release its control. Thus the original is carried onto an original setting glass 6 via a conveyor belt 52 and hits a control member 56 to be positioned. After the copying is over, the original is discharged to the upper face 40 of a semiautomatic original carrier 4. A mobile primary frame 10 can turn centering on a shaft 36 and is fixed with a prescribed angle and by the interlock between a rod 84 and a locking member 98.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a semi-automatic document feed and ejection device for a static copy machine.

In an electrostatic copying machine, there is generally a transparent plate on the top surface of the copying machine housing for placing the original to be copied, and a closed position that covers the transparent plate and an open position that exposes the transparent plate. A document holding member that can be rotated is provided. During copying work, before the electrostatic copying machine itself performs the copying process, the original to be copied is positioned on the transparent board in the required slot, and then the original holding member is placed in the closed position and the Covering the plate and the document positioned thereon with a document holding member, and following the copying process performed by the electrostatic copying machine itself, placing the document holding member in the open position, and then removing the document on the transparent plate. This operation is performed manually.

-As can be easily understood, the 110 manual operations that must be performed on the original to be copied are quite cumbersome for the copying worker. In particular, when copying many originals one after another, the copying worker must repeat the above manual operations many times.
The amount of labor required by the copying worker is considerable, and the time required for the above manual operation itself, which must be repeated many times, is also considerable; therefore, it is difficult to carry out the required copying work. It will take quite a long time to do so.

In view of these facts, in recent years, the A housing of a copying machine is disposed on the top surface of the A housing in relation to the transparent plate as required, and requires manual opening/closing or rotation of a member such as a document holding member. By simply positioning the original to be copied at a predetermined position without having to do any Establishing the required passing state in which the electrostatic copier itself can start the copying process, and automatically IKing the document on the transparent plate at the required position following the electrostatic copier itself performing the copying process. Semi-automatic I in various forms of discharging! A paper feeding and ejecting device was proposed and came to be used for various purposes.

An example of a semi-automatic document feeding and ejecting device is
Patent Application No. 47874 filed in 1982 by the present applicant
Mention may be made of the semi-automatic original feeding and ejecting device disclosed in the specification and drawings of No. 1, entitled Semi-automatic document feeding and ejecting device for an electrostatic copying machine. This semi-automatic document feeding and ejecting device has a stationary support frame and one:i:
*With body 1. [Equipped with] The stationary support frame is attached to the upper surface of the electrostatic copying machine housing adjacent to one side mK of a transparent plate for placing a document disposed on the upper surface of the electrostatic copying machine housing.

On the other hand, the main frame body is attached to the stationary support frame body such that one end thereof can be pivoted about a pivot axis extending along the above-mentioned negative side edge of the transparent plate, and the main frame body is attached to a stationary support frame body so as to be able to freely rotate around a pivot axis extending along the above-mentioned negative side edge of the above-mentioned transparent plate. The exposed non-operating position can be pivoted to open and close about the pivot axis. When the stationary support frame body and the main frame body are attached to each other, and the main frame body is positioned at the imperial working position, the document is passed through the document conveyance path including the main portion defined between the lower surface of the main frame body and the transparent plate. The document is equipped with a document transport mechanism for transporting the document to the required pass.

The semi-automatic document feeding and ejecting device disclosed in the specification and drawings of the above-mentioned 1982 patent @ No. 47874 skillfully overcomes various drawbacks and -Fs conditions found in conventional semi-automatic document feeding and ejecting devices. Although this is an excellent product that includes various improvements that have been solved, it is still not fully satisfactory and has the following drawbacks and inconveniences.

First, if you manually place the document tube at a desired position on the transparent plate without using the semi-automatic document feeding and ejecting device, the main frame of the semi-automatic document feeding and ejecting device is The above non-working position @LI
The IC-attached main frame body is simply prevented from rotating from the non-operating position to the operating position by the elastic biasing action of the spring member. Therefore, if, for example, the user's arm or the like accidentally hits the main frame Km in the non-working position, it moves from the non-working position to the working position [K accidentally] against the elastic biasing action of the spring member. This may cause damage to the semi-automatic document feeder and ejector itself or injury to the user.

2nd K. If the original jams during automatic feeding or ejection of the original in the semi-automatic original feeding and ejecting device, the jam can be removed by a sufficiently simple operation without damaging the original. It is important that the device be configured to be able to process original documents.

1. Therefore, when the main frame bar is rotated from the working position to the non-working position, the cooperating pair of rollers in the document transport mechanism are automatically separated. , the construction involved is relatively complex and expensive.

The present invention has been made in view of the above facts, and its first object is to move the main frame beyond the predetermined angular position when the main frame is pivoted from the operating position to a predetermined angular position or more. An object of the present invention is to provide an improved semi-automatic document feeding and ejecting device that reliably prevents accidental thoracotomy rotation.

A second object of the present invention is to provide cooperation in the document transport mechanism by allowing the main frame to be rotated from the working position by a sufficiently simple and inexpensive construction without requiring a relatively complicated and expensive construction. Working roller・'1. An improved semi-automatic document feeding and ejecting device is provided in which the pairs are automatically separated.

According to the present invention, as a semi-automatic document feeding and ejecting device that achieves the above object W&L, the hatching is provided adjacent to one side edge of a transparent plate for placing a document disposed on the upper surface of an electrostatic copying machine housing. a stationary support frame attached to the upper surface; one end; attached to the stationary support frame so as to be pivotable about a pivot axis extending along the side edge of the transparent plate, and covering the transparent plate; A semi-automatic document feeder and ejector for an electrostatic copying machine, comprising a main frame that can be pivoted open and closed about the pivot axis between a working position and a non-working position exposing the transparent plate. The main frame is caused to rotate upward by a predetermined angular displacement 1j2 from the operating position. A semi-automatic document feeding and ejecting device is provided that includes a releasable locking mechanism for blocking the document.

Further, according to the present invention, as a semi-automatic document feeding and discharging device that achieves the above second object, a semi-automatic document feeding and discharging device is provided which is provided with a semi-automatic document feeding and discharging device that is arranged adjacent to one side edge of the transparent plate for document tray 1 disposed on the upper surface of the electrostatic copying machine housing. a stationary support frame mounted on the upper surface of the housing; one end of the transparent plate is mounted on the heavy stationary support frame and rotates about a pivot axis extending along the side edge of the transparent plate; a main frame that can be pivoted to open and close about the pivot axis between an active position that covers the transparent plate and a non-active position that exposes the transparent plate; the main frame is fixed in the active position; for conveying a document through a document conveyance path including a main portion defined between the lower surface of the main frame and the transparent plate when
A semi-automatic document feeding and ejecting device for an electrostatic copying machine, comprising: a main frame; and a document transport mechanism mounted on the stationary support frame; a first shaft rotatably mounted on the one end of the main frame; at least one roller mounted on the first shaft; and a stationary support opposite the first shaft. a second shaft rotatably mounted on the frame and movable in a direction toward and away from the first shaft; at least one O roller mounted on the second shaft; a spring member interposed between the stationary support frame and the second shaft, the spring member elastically biasing the second shaft in a direction approaching the first shaft; The body is configured to act on the second shaft and move the second shaft to the first shaft against the elastic biasing action of the spring member when the main frame is rotated open from the operating position. A semi-automatic document feeding and ejecting device is provided, characterized in that a cam is provided to move the document away from the document.

Furthermore, according to the present invention, as a semi-automatic wL document feeding and ejecting device that achieves the above objectives, a semi-automatic wL document feeding and ejecting device is provided which is provided adjacent to one side edge of the transparent plate for document placement disposed on the upper surface of the electrostatic copying machine housing. a stationary support frame mounted on the upper surface of the housing; one end of the stationary support frame mounted on the stationary support frame so as to be pivotable about a pivot axis extending along the side edge of the transparent plate; a main frame that can be pivoted to open and close about the pivot axis between an operating position that covers the transparent plate and a non-operating position that exposes the transparent plate, and when the main frame is positioned in the operating position 1; a document transport mechanism equipped on the main frame and the stationary support frame for transporting the document through a document transport path including a main portion defined between the lower surface of the main frame and the transparent plate; In a semi-automatic document feeding and ejecting device for an electrostatic copying machine, the document transport mechanism includes at least one shaft mounted on the first shaft rotatably mounted on the main frame. a support member of the main frame body that is rotatably mounted around a series of connecting axes that extend substantially parallel to and spaced apart from the central axis of the first shaft; (b) a second shaft rotatably mounted on the wrinkle support member opposite to the shaft;
at least one zero roller attached to the 20th shaft, and when the cough main frame is moved to open the chest and positioned at the axillary working position, a part of the support member abuts the upper surface of the cough housing. As a result, the mosquito support member is rotated in a predetermined direction with respect to the main frame body around the connection axis, and the mosquito support member is thus attached to the shaft of the cough turtle 2, fC, and the cough roller is attached to the shaft of the $1. When the soil removal frame is positioned at a position where it cooperates with the rollers and rotated from the operating position, the soil removal support member is moved relative to the soil removal frame in the predetermined direction about the crease connection axis m. a semi-automatic document feeder and ejector, characterized in that the cough roller mounted on the second shaft is automatically pivoted in the opposite direction, thus separating the cough roller mounted on the second shaft from the roller mounted on the first shaft. is provided.

DESCRIPTION OF THE PREFERRED EMBODIMENTS A detailed description will now be given of one embodiment of a semi-automatic document feeding and ejecting apparatus constructed in accordance with the present invention with reference to the accompanying drawings, in which: FIG.

Referring to FIG. 1, an electrostatic copying machine, which may be of a well-known form per se, has a semi-automatic document feeder and ejector, generally designated 4, on the top surface of the copier 2. and a document holding mechanism (not shown), which itself may be of a known type.

The illustrated semi-automatic document feeding and ejecting device #4 includes a stationary support frame 8 mounted on the top surface of the copying machine housing 2 adjacent to one side edge of a transparent plate 6 disposed on the top surface of the copying machine housing 2.
, an active position 11 that covers the transparent plate 6 [(the position shown in FIG. 1)] and a non-active position 11 that exposes the transparent plate 6 (for example, from the above-mentioned active position) centered on the axis extending along the -411141 of the transparent plate 6. (The position rotated approximately 90 degrees clockwise in Fig. 1, that is, the position shown by the two-dot chain line in Fig. 3)
It is mounted so as to be able to rotate freely between the main frame 10 and the
It is equipped. On the other hand, the document holding mechanism (not shown) #i, the other part of the transparent plate 6 which extends perpendicularly to the pivot axis of the main frame lO of the semi-automatic document feeding and ejecting device 4. Rotates around an axis extending along the side edge between an active position that covers the transparent plate 6 and a non-active position that exposes the transparent plate 6 (for example, position 1 rotated approximately 90 degrees from the above-mentioned active position). It is attached freely. When the semi-automatic document feeding and ejecting device 4 is used to position the document to be copied on the transparent plate 6, the document holding mechanism (not shown) is placed in the non-operating position and the semi-automatic
The main frame 10 of the document feeding and ejecting device [4 is positioned at the above operating position. On the other hand, when positioning the original to be copied on the transparent plate 6 by manual operation without using the semi-automatic document feeding and ejecting device 4, the main frame 10 of the semi-automatic document feeding and ejecting device [4] is not used. Then, the document is placed in the desired position on the transparent plate 6, and then the document holding mechanism (not shown) is rotated to the said position, and the transparent plate 6 and the document placed thereon are rotated. It is covered by the document holding mechanism.

Next, the outline of the configuration of the illustrated semi-automatic document feeding and discharging device 4 will be described. As described above, the semi-automatic document feeding and discharging device 514 is supported stationary.

A document conveyance path 12 for conveying the document is formed within the stationary support frame 8 and the movable main frame 10 .

) and the upper surface of the transparent plate 6, and a curved lead-out portion 18 defined in the free end (left side in FIG. 1) of the movable main frame 10. .

The guide portion 14a of the document conveyance path 12 is defined between a lower guide plate 22 and a lower guide plate 24, which are positioned opposite to each other in the vertical direction. The introduction section 14 includes a driven roller and a driven roller for conveying the document inserted into the introduction section 14 to the main section 16, and a driven roller that protrudes into the introduction section 14 on the downstream side. A first document position regulating member 28 is disposed to prevent the document from proceeding through. The driven roller 26b of the introduction conveyance roller pair is rotatably mounted on a bracket 32 fixed to a suspension rod 30, and the first document position regulating member 2B is fixed to this suspension rod 30. Further, one end of an operating lever 33 is fixed to the suspension rod 30, and the output end of a solenoid 34 is rotatably connected to the other end of the operating lever 33.

When the solenoid 34 is deenergized, the driven roller 26b is in the non-operating position &(11
The first document position regulating member 28 is positioned at a position indicated by a two-dot chain line in the figure, and the first document position regulating member 28 has its free end located on the document transport path 12.
It protrudes into the 0 introducing portion 14 and is positioned at a blocking position (IC indicated by a two-dot chain line in FIG. 1) to prevent the document from advancing.

On the other hand, when the solenoid 34 is energized, the suspension rod 30
The driven roller 26b is rotated, and the document position regulating member 28 protruding into the introduction section 14 has its free end retracted from the introduction section 14 and is located below the lower guide plate 22, allowing the advance of the document. Position [(position 1 shown by the solid line in Figure 1) K is located.

The main s1 of the document transport path 12 formed in the movable main frame lO
6 and curve derivation 11s18, from the introduction part 14 to the main part 1
6 is conveyed through this main part 16, and further conveyed from the main part 16 through the curved lead-out part 1B and discharged onto the movable main frame lO FkU (upper surface of the upper plate 40) K. A conveyor belt 52 (only one is shown in FIG. 1, but in the specific example shown, four endless conveyor belts 52 are provided as shown in FIG. 2) is provided.

This endless conveyance bay (...) 52 includes a roller 38 attached to the main shaft 36, rollers 42, 44, 46, and 4.
B (14 of these rollers 38, 42, 44. 48 constitute the curved lead-out portions 18 of the document conveyance path 12, respectively.

The endless conveyor belt 52 has an active running portion extending through the main portion 16 of the document conveying path 12 from the roller 38 to the roller 44, and a curved lead-out portion of the document conveying path 12 from the roller 44 to the roller 48. 18 and a non-active run that further extends under top plate 40 from roller 48 to roller 38K.

Below the main shaft roller 38 disposed in the main portion 16 of the document conveyance path 12, a roller 50 is disposed in contact with or close to this roller 38. Further, a suppression roller 54 for bringing the surface of the endless conveyance belt 520 into contact with or close to the surface of the transparent plate 6 is disposed substantially corresponding to the central portion of the main portion 16 when viewed in the conveyance direction.

The main portion 16 of the document transport path 12 further includes the main portion 1
A second document position regulating member 56 protrudes near the downstream end of the main portion 16 to prevent the document from advancing through the main portion 16, and the second document position regulating member 56 prevents the document from being conveyed endlessly upstream from the position where the second document position regulating member 56 blocks the document. A suppressing roller 58 is provided that presses the back surface of the belt zone to bring the surface of the endless conveyor belt 520 into contact with or close to the surface of the transparent plate 60. The second document position regulating member 56 is fixed to a suspension rod 60, and the pressing roller 58 is rotatably attached to one end of the support 7-m 6 stem fixed to the suspension rod 60.

A connecting piece (not shown) is fixed to the hanging rod 60, and an output end of a solenoid (not shown) is rotatably connected to the other end of this connecting piece.

When this solenoid (not shown) is deenergized, the pressing roller 5B is located above the lower plate 11 of the movable main frame lO and is in a non-active position where it does not act on the endless conveyor belt 52. (the position indicated by the solid line in FIG. 11), and the second document position regulating member 56 protrudes into the main portion 16 of the document transport path 12 to prevent the document from advancing through the main portion 16 at the blocking position 1f ( The position indicated by the solid line in Figure 11 [)
It is located strangely. On the other hand, when a solenoid (not shown) is energized, the suspension rod 60 is pivoted and the suppression roller 5 is
8 suppresses the back surface of the endless conveyor belt 52, and is located in an operating position where the surface of the endless conveyor belt 520 comes into contact with or approaches the surface of the transparent plate 60, and the second document position regulating member 56 retreats from the main portion 16 to move the document. is positioned in an unobstructed position that allows for advancement.

The curved lead-out portion 18 of the document conveyance path 12 formed at the free end of the movable main frame 10 is defined by a guide plate 62 having an arcuate cross section. This guide plate 62 is connected to the endless conveyor belt 5.
The upper plate of the movable main frame lO is positioned opposite to the rollers 44, 46, and 48 on which the movable main frame 10 is wound. 4o
The document is ejected onto the document receiving surface specified by Original transport path 1
The second curved lead-out portion 18 includes an upstream driven roller 64 that contacts or approaches the surface of the endless conveyor belt 52 at a position opposite to the roller 46, and an upstream driven roller 64 that contacts the surface of the endless conveyor belt 520 at a position opposite to the roller 48. A downstream driven roller 66 is provided which is brought closer to the downstream side.

The roller 68 disposed on the movable main frame 10 is a tension setting roller for setting the tension of the endless conveyor belt 52 to a value specified in the specification 6, and also serves as a tension setting roller for setting the tension of the endless conveyor belt 52 to an appropriate value. The endless conveyor belt 520 wound around the roller 38 is a guide roller for guiding the conveyor belt 52 and ensuring sufficient contact.

Next, the operation of the semi-automatic document feeding and ejecting device 514 described above will be briefly explained.

First, the movable main frame 10 is positioned at the operating position if (the position shown by the solid line in FIG. 1).

Next, the original to be copied is placed on the original platen 9, and the original is manually advanced so that the front part of the original is partially inserted into the reader part 14 of the original transport path 12, and the leading edge of the original is blocked. The second document position regulating member 28 is brought into contact with or close to the document position regulating member 28 located at the second position.

In this way, the first document detector (not shown) disposed upstream of the blocking position of the first document position regulating member 28 detects the document, and a predetermined delay time elapses. The solenoid 34 is energized. When the solenoid 34 is energized, the driven roller 26b is positioned at the operating position to nip the pair of introduction transport rollers 261 and 26bt', and the first document position regulating member 28 is placed in a non-blocking state that allows the document to advance. positioned in position. and,
After a predetermined delay time has elapsed, a drive source (not shown) is energized, and thus the pair of introduction conveyance rollers 2.6m and 2.
6b and the endless conveyor belt 52 are driven, and feeding of the document is started.

When the document feeding is started and the trailing edge of the document passes the first document detector (not shown), the solenoid 34 is deenergized and the driven roller 26b is returned to the non-operating position.
The document position regulating member 28 of I is returned to the blocking position.

Further, when the feeding of the original is started and the original is fed for a predetermined time until the leading edge of the original reaches a position slightly before the second original position regulating member 56 located at the blocking position, the original is fed. A driving source (not shown) is deenergized by counting a predetermined number of pulse signals from the start of supply. When the drive source is deenergized, the introduction conveyance roller pair 26 & and 26b and the endless conveyance belt 52
is stopped, feeding of the document is stopped, and the leading edge of the document is brought into contact with the second document position regulating member 56 by the inertia of the electroless conveyance belt 52 and positioned at a desired position.

Also, at the same time, the electrostatic copying machine itself causes g! The copying process is started.

Next, when the required copying process is completed, a solenoid (not shown) is energized, the second document position regulating member 56 is positioned at a non-blocking position that allows the document to advance, and the suppression row 258 is activated. positioned in position. (9) After the required copying process is completed and a predetermined delay time has elapsed, a drive source (not shown) is energized to start driving the endless conveyor belt 52 together with the pair of introducing conveyor rollers 26 & and 26b, and the original is transferred. discharge begins.

When the ejection of the original is started and the endless conveyance belt 52 is driven by an amount of operation corresponding to the distance corresponding to the maximum dimension of the original in the transport direction (after the ejection of the original is started, a pulse-shaped Signal [when a predetermined number of stitches are completed],
The solenoid (not shown) is deenergized, the second document position regulating member 56 is returned to the blocking position, and the pressing roller 58 is
is returned to its inactive position.

Then, when the original is started to be ejected, the original is passed from the main part 16 of the original transport path 12 through the curved lead-out part 18', and even if the original has the maximum dimension in the transport direction, the original that has started to be ejected is sufficiently received. When the endless conveyor belt 52 is driven by the amount of operation necessary to discharge the document onto the surface (at the time when a predetermined number of pulse signals are counted after the discharge of the document is started), the driving source (not shown) is deenergized. Introduction conveyance roller pair 26m and 26b
At the same time, the driving of the endless conveyor belt 52 is stopped.

As described above, the structure and operation of the semi-automatic document feeding and discharging device described above are disclosed in Patent Application No. 47874 filed in 1982 by the present applicant (title of invention: Semi-automatic document feeding and discharging device for electrostatic copying machine). This device is substantially the same as the semi-automatic document feeding and ejecting device disclosed in the specification and drawings of the Japanese Patent Application (Japanese) and the ejecting device, and therefore detailed explanation of its structure and operation will be omitted.

The related structure between the stationary support frame and the movable main frame and the structure of the lock mechanism. Referring to FIGS. To explain this, the stationary support frame 8 has a pair of upright walls 72M and 72b (Fig. ), and between the pair of upright walls 72m and 72b, the first shaft and the shaft are connected by the first bearing members 74 and 74b, the bearing support members 76 and 76b, and the second bearing members 75jj and 75b. A main shaft 36 is rotatably mounted. On the other hand, the movable main frame 10 has a housing 80 attached to the main frame.
It has a pair of side plates 78m and 78b located at a predetermined distance in the axial direction (direction perpendicular to the plane of the paper in FIG. 13, horizontal direction in FIG. 4), one end of each of which is connected to the bearing support member. They are fixed to the tips of 76m and 76b, respectively. Therefore, the movable main frame 10
6m and 76b and first bearing members 74m and 74b
The main shaft 36 is rotatably connected to the main shaft 36 via the main shaft 36, and the movable main frame 10 extends along one side edge of the transparent plate 6.
It is attached to the stationary support frame 8 so as to be pivotable about the center axis (the pivot axis of the movable main frame IO). and,
Between each of the pair of upright IIs 72m and 72b of the stationary support frame 8 and each of the pair of side plates 78a and 78b of the movable main frame 1O, the movable main frame 1O is placed in the operating position (IIFH
The position shown in the figure, the position shown by the solid line in Fig. 3) or the non-operating position (position k shown by the two-dot chain line in Fig. 3), or the non-operating position (position k shown by the two-dot chain line in Fig. 3), can be positioned and held at either A mechanism is provided.

Mainly referring to FIGS. 2 and 3, on the outer surface of each of the pair of uprights 972m and 72b of the stationary support frame 8, there is a horizontally outwardly spaced apart from the main shaft 36 at a predetermined distance. That is, short shaft portions 82 (only one of which is shown) extending substantially parallel to the central axis of the main shaft 36 are fixed, and a hole 85 is formed at one end of the connecting rod 84 in each of the short shaft portions 82. is inserted, and the fixing member 8'j is attached to this short shaft portion 8.
By fixing the connecting rods 84 to the tips of 2, respectively,
are rotatably connected around the central axis of the short shaft portion 82, that is, the connecting axis of the connecting rod 84. On the other hand, on the outer surface of each of the pair of side plates 78 and 78b of the movable main frame lO, a pair of protrusions protrude laterally outward at a predetermined interval in the longitudinal direction (left-right direction in FIG. 3). Brackets 86 having
A connecting rod 84 is movably attached to each pair of O protrusions. One end of this connecting rod has a male thread 8.
8 are formed respectively, and this male thread 88. Natsuto 90 each
are screwed together. A spring member 92 is interposed between the nut 90 screwed onto the connecting rod 84 and the protrusion of the bracket 86 (the side facing the nut 90 of the pair of protrusions). .

This movable main frame IO is further provided with a locking mechanism 94. In the illustrated example, the locking mechanism 94 is provided on the side plate 78m on one side of the movable main frame lO.
In some cases, they may be provided on the side plates 78m and 78b on both sides, respectively. This locking mechanism 94 is connected to the connecting rod 8.
4 (the end opposite to the side where the male thread 88 is formed) is formed with a locking notch 96, and a locking member 9B that enters the locking notch 96. It is composed of a spring member 100. lock member 98Fi,
The side plate 78aIC of the movable main frame IO is rotatably attached to a mounting bin 102 which is disposed to extend laterally outward. Bin 1 fixed to this lock member 98 and side plate 785
Between 04 and 8 1. A spring member 100 is attached, and the locking portion 106 of the locking member 98 is pressed against the surface of the connecting rod 840 by the elastic biasing force of the spring member 100. At this time, the manual pressing portion 10B of the locking member 98 slightly protrudes from the opening 110 formed in the bottom surface of the main frame housing 80 of the movable main frame 1o.

In the above-mentioned passing machine 1'□11 interposed between each of the pair of upright Ws 72M and 72b of the stationary support frame 8 and each of the pair of side plates 78a and 78b of the movable main frame 10. When the movable main frame 10 is pivoted to open and close between the working position shown by the solid line in FIG. 3 and the non-working position shown by the two-dot chain line in FIG. ) K and the connecting rod 84 are each pivotably mounted so that they can be rotated between the position 1 shown in FIG. 3 and the position shown by the two-dot chain line. Therefore, the pair of side plates 781 and 78b of the movable main frame 100 are connected to the main shaft 3.
6, each of the connecting rods 84 pivots around the central axis of the movable main frame 10 (the pivot axis of the movable main frame 10), whereas each of the connecting rods 84 has a short axis that is displaced to the lower left in FIG. 3 with respect to the main shaft 36. Each pivots around the central axis of the portion 82 (the connecting axis of the connecting rod 84).

Therefore, as understood by Yosho from FIG. The distance between the movable main frame 10 and the hole 85) formed in the connecting rod 84 is shortest when it is in the working position shown by the solid line in FIG. It gradually increases as the amount increases.

Accordingly, a spring member 92 is interposed between the nut 90 screwed onto the connecting rod 84 and the bracket 86, and acts in a direction to increase the distance between the nut 90 and the bracket 86. is a direction in which the movable main frame 10 is rotated from an active position shown by a solid line in FIG. 3 to a non-active position shown in two-dot chain line, that is, a direction in which the movable main frame 10 is turned clockwise in FIG. 3. exerts an elastic biasing force M1 on the movable main frame 10. And the spring member 92
Such an elastic biasing force M is such that the movable main frame body 10 is W&3
It is greatest when it is in the working position shown by the solid line in the figure, and gradually decreases as it is turned toward the non-working position. The elastic biasing force M1 by the spring member 92 can be changed by changing the position of the nut 90! can be adjusted.

Movable main frame! 0, in addition to the above-mentioned continuous elastic biasing force M1 by the spring member 92, the movable main frame 1o and various components attached thereto (rollers, etc.) are applied.

Due to the weight of the endless conveyor belt, etc., the following threading force also acts. That is, the weight of the movable main frame 1o and the various components attached thereto is the same as that in FIGS. M2 in the counterclockwise direction in the figure is applied to the movable main frame lO. When the movable main frame 10 is moved from the working position to the non-working position and rotated clockwise by an angle θ in FIGS. 1 and 3, M#="2X (1) decreases to 0. That is, the moment acting on the movable main frame 1O decreases as the main frame 1O is rotated 1□ clockwise in FIG. 3 from the working position to the non-working position. In the illustrated example, the movable main frame 10
When is in the operating position shown by the solid line in FIG. 3, the elastic biasing force M by the spring member 92 acts in the direction to rotate the movable main frame 10 clockwise in FIG. 113.
1 and 1, the moment due to the weight acting in the direction in which the movable main frame 10 is rotated counterclockwise in FIG. When rotating the thoracotomy clockwise in FIG. 3 from the position to the non-operating position, the elastic biasing force M1
The degree of decrease in the moment M2 due to the weight of the movable main frame 10 is greater than the degree of decrease in the moment M2 due to the weight of the movable main frame 10.
When the movable main frame 10 is rotated clockwise in FIG. 3 to bring it into the non-acting position A shown by the two-dot chain line in FIG. M1:::
・: Moment due to weight) M2 is slightly larger, and by applying this moment M2 to the locking mechanism 94 in the non-working position 1, the movable main frame 10 is held in the non-working position. I am forced to do it.

In this non-acting position, even if an external force (generated by a user's arm or the like colliding with the movable main frame 10) is applied to the movable main frame 10, the movable main frame 1o only contacts the stationary support frame 8. Further thoracotomy rotation is prevented.

Next, the operation of the lock mechanism 94 will be explained.

When the movable main frame lO is in the operating position IK, the locking member 98 of the locking mechanism 94 has a locking portion 106 which is shown in solid line in FIG. The manual pressing portion 10g is brought into contact with the surface of the end portion and the housing 8 is attached to the main frame body.
When the movable main frame 10 is rotated clockwise in FIG. 13 from this state where it is slightly protruding from the opening 110 of 84 slides and the movable main frame 10 is rotated from the working position to a predetermined angular position, that is, in the illustrated example, to the approximately vertical non-working position shown by the two-dot chain line in Figure 113, the lock is activated. The locking action Th 106 of the member 98 and the locked notch 96 formed at the protruding end of the connecting rod 84 align, and the spring member 1
The locking member 98 is pivoted about the attachment pin 102 by the 000 elastic biasing action, and the mold opening 1-jerg action portion 106 of the locking member 98 automatically enters into the locked notch 96. In this way, the movable main frame 10 is locked and held in the non-operating position shown by the two-dot chain line in FIG. 3, and the movable main frame 10 moves counterclockwise in FIG. Rotation of the abdomen in the direction is prevented.

When the movable main frame lO is rotated counterclockwise from the non-operating position to the operating position liK in the counterclockwise direction in FIG.
8 manually press the manual pressing part 108. Then, the movable main frame 10 is preferably rotated beyond a predetermined angular position, that is, the non-working position 1, to the working position shown by the solid line in Fig. 883.

In the specific example described above, the movable main frame is pivoted open and closed between the working position and the approximately vertical non-working position, and the locking mechanism is activated in the non-working position to lock and hold the movable main frame. However, if desired, a plurality of locking notches (for example, recesses) can be formed in the connecting rod and the movable main frame body can be positioned at an appropriate predetermined angular position other than the non-working position 1. The locking mechanism may also be configured to operate and hold the device even when the device is in use.

In addition, in order to allow the movable main frame to open and close freely within a certain angular range at a predetermined angular position, a locking groove is formed in the connecting rod, and the locking member has a claw-like locking function in this groove. The locking portion may be configured to be able to enter the recessed groove, and the locking portion may be slidably movable from one end of the recessed groove to the other end. In this case, the movable main frame can be freely pivoted to open and close within the movement range of the locking portion within the groove, and thus within a predetermined angular range corresponding to the movement distance within the recess at a predetermined angular position.

Furthermore, in the specific example described above, a locking notch is formed at the free end of the connecting rod equipped with a spring member for applying an elastic biasing force to the movable main frame, but if desired,
A rod with a locking notch formed separately from the connecting rod is rotatably provided, and when the movable main frame is at a predetermined angular position, the locking member is locked in the locking notch of the rod. It may be configured such that the acting portion enters.

As described above, in the semi-automatic document feeding and ejecting device having the locking mechanism described above, the movable main frame can be automatically locked at a predetermined angular position simply by opening the movable main frame, and the movable main frame can be automatically locked at a predetermined angular position. It is possible to reliably prevent rotation of the abdomen beyond this point.

The structure of the first document conveyance mechanism from the introductory part to the main part of the document conveyance path. With reference to FIGS. Between 72b, first bearing members 74m and 74b, bearing support member 7
6m and 76b and the second bearing member, the first shaft, ie, the main shaft 36, is rotatably mounted. Four rollers 3B (three of them are shown in FIGS. 4-A and 4-Bgl) are mounted on this main shaft 36 at intervals in the axial direction. An endless conveyor belt 52 is wound around each of these four rollers 38, and each of the endless conveyor belts 52 has the above-mentioned through-hole,
Main part 1 of document transport path 12 from roller 38 to roller 44
6 (see FIG. 1). A toothed belt pulley 112 is attached to one end of the main shaft 36, that is, the end that passes through the upright wall 72b and projects laterally outward.

Upright walls 72m and 72b of stationary support frame 8 r15 K
Further, a second shaft, that is, a driven shaft 114 is rotatably mounted opposite the main shaft 36. This driven shaft 114
are long holes 11 formed in the upright walls 72m and 72b.
6m and 116b via bearing members 1181 and 118b so as to be movable in the direction approaching the main shaft 36 and in the direction away from the main shaft 36. And bearing members 1181 and 118 that support the driven shaft 114 of
b and upright [72m and 72b, respectively,
Spring members 120m and 120b are interposed to elastically bias the driven shaft 114 in a direction toward the main shaft 36. Four rollers are attached to the driven shaft 114, corresponding to the four rollers attached to the main shaft 36.

These above-mentioned main shafts 36. Roller 38. Driven shaft 114
The O-ra 50 and the screw members 120m and 120b constitute a first document conveyance mechanism for conveying the document from the introduction section 14 of the document conveyance path 12 to the main section 16.

On the other hand, the movable main frame 10 has its side plates 78 as described above.
One end of the shaft and 78b are the bearing support members 768 and 7, respectively.
The movable main frame lO is fixed to the tip of the bearing support member 76m and the bearing support member 76b.
and the main shaft 3 through the bearing members 74 and 74b of Kll.
6, and is thus attached to the stationary support frame 8 so as to be pivotable about the central axis of the main shaft 36 (the pivot axis of the movable main frame 1O). At one end of the side plates 781 and 78b of the movable main frame 10, there are formed cams 122m and 122b, respectively, which press the driven shaft 114 of the roller 50 when the movable main frame 10 is rotated to open the chest. has been done.

Next, the movable main frame 10 is mounted on the movable main frame 10 and the stationary support frame 8 as described above. (position shown by the solid line in Figure 3), the 4-A
The driven shaft 114 is elastically biased in the direction approaching the main shaft 36 by the action of the through and spring members 120m and 120b shown in the figure, and each of the nine rollers 50 attached to the driven shaft Ill. , the endless conveyor belt 520 is wound around the roller 38 by the elastic biasing action of the spring members 1201 and 120b.
It is pressed elastically against the surface. Therefore, at this time, when the document is fed, the document is regulated between the lower plate 11 and the transparent plate 6 of the next movable main frame lO by the cooperative action of the endless conveyor belt 52 and the rollers 50. Original transport path 12
can be fed to the main part 16 of.

If a document jams near the first document transport mechanism, that is, between the endless transport belt 52 and the rollers 50, the movable main frame lO is moved from the working position to the non-working position shown by the two-dot chain line in FIG. The thoracotomy is then rotated clockwise in Figure 3.

In this way, the pair of side plates 78 and 7 of the movable main frame lO
Cams 1221 and 122b formed at one end of 8b, respectively.
acts on the driven shaft 114, causing the driven shaft 114 to move away from the main shaft 36 against the elastic biasing action of the spring members 1201 and 120b, as shown in FIG. 4-B.

As a result, the endless conveyor belt 5 wrapped around the roller 3BK
The nip state between the roller 250 and the endless conveyor belt 52 is released, and the jammed material is removed between the endless conveyor belt 52 and the roller 250.
can be easily taken out.

In the specific example described above, when the movable main frame is in the active position, the roller attached to the driven shaft is suppressed by the endless conveyor belt due to the elastic biasing action of the spring member. is configured such that the driven shaft of the belt comes into contact with one end of a long hole formed in a straight vertical wall by the elastic biasing action of a spring member, and the mourning roller attached to the driven shaft is brought close to the end of the endless conveyor belt by 1 mK. , - When the original is fed, this roller and the electroless conveyance belt come into contact with each other through the original, and the original @ may be fed by the cooperative action of this roller and the endless conveyance belt.

Furthermore, in the specific example described above, the cams are integrally formed at one end of the pair of side plates of the movable main frame, but if desired,
A cam may be formed separately from the side plates, fixed to each of the pair of side plates, and the driven shaft may be moved in a direction away from the main shaft by the action of the cam.

As described above, in the semi-automatic document feeding and ejecting device having the eleven document conveying mechanisms of the specific example described above, when the movable main frame is opened and swung from the working position to the non-working position, the The cam acts on the driven shaft (second shaft),
In order to move this driven shaft (second shaft) away from the main shaft (first shaft), an endless conveyor belt and a driven shaft (
The nip state with the roller attached to the second shaft is released, and even if a document jams in the first document transport mechanism, the jammed document can be removed by simply opening and rotating the movable main frame. It can be taken out without damage.

Configuration of second document conveyance mechanism of curved guide portion of document conveyance path
′:゛4 Figure 1 and! The second document conveyance mechanism of the curved lead-out portion of the document conveyance path 12 will be described with reference to FIGS. 185 to 7.

Between the pair of side plates 78m and 78b (only one side plate 78m is shown in FIGS. 6 to 17) of the movable main frame 10, rollers 44, 46, and 48 (these rollers 44, 46
and 48 are provided in a number corresponding to the number of endless conveyor belts 52 (in the specific example, four rollers 44, 46, and 48 are provided, respectively) are attached to a support shaft 126.
, 128 and 130 are respectively rotatably disposed via bearing members, and an endless conveyor belt 52 is wound around the rollers 44, 46 and 4B, respectively. Further, between the pair of side plates 713m and 78b, a guide plate 62 having an arcuate cross section is fixed at its free end so as to face the rollers 44, 46 and 48; □
,,□! jt81. ．． ': Product, □1.8°6 The original is guided upwards to the upper surface of the upper plate 4° of the movable main frame IQ. The guide plate 62 has openings 1 at positions facing the rollers 46, respectively.
32- is also opposite to the roller 48, each opening 1 of the IK
34 is formed.

Further, a guide blade 124 made of a flexible material such as resin is provided at the upstream end of the guide plate 62 to reliably guide the original to the curved lead-out portion 18 above. When the movable main frame 10 is in the operating position (1it as shown in FIG. 5), its tip is in contact with the upper surface of the copying machine housing 2. Opening 134 of guide plate 62
Each of the rollers 48 has a downstream driven roller 6 facing the roller 48.
6 are arranged so as to protrude from the openings 134 and come into contact with the surface of the endless conveyor belt 520 wound around the rollers 48 by their own weight.

A pair of side plates 78m and 78b of the movable main frame lO each have a bin member 136 laterally outwardly (supporting shaft 128c) at a predetermined interval with respect to the central axis of the supporting shaft, that is, the first shaft 128. ) Extends substantially parallel to the central axis) and is fixed. A support member 138 is attached to each of the bottle members 136 so as to be pivotable about the center axis of the bottle member 136 (the connection axis of the support member 138). Between the pair of support members 138, a driven shaft, that is, a second shaft 140, on which upstream driven rollers 64 (four in the specific example corresponding to the rollers 46) are mounted, is rotatable via a bearing member 142. is installed on. Support member 138 of driven shaft 140
A driven shaft 140 and a bearing member 142 are installed in an elongated hole 144 formed in the support member 138 to be movable toward and away from the support shaft 128.
After that, the spring members 146 fixed to the support member 138 are applied to the bearing members 142 to which the driven shaft 140 is attached, so that the driven shaft 140 is elastically biased in the direction approaching the support shaft 128. It is being done as a precaution.

These above-mentioned support shafts (first shafts) 128° rollers 4
6. Support member 138. Driven shaft (second shaft) l40. The driven roller 64 constitutes a second document conveyance mechanism of the curved guide portion 18 .

Provided at the free end of the support member 138 and movable main frame 1
A bottle 148 is fixed to each of the protrusions projecting from the lower plate 11 of the 0, extending laterally outward, and an abutment roller 150 is rotatably mounted on each of the bottles 148. In the illustrated example, the contact rollers 150 are attached to the support members 138 attached to the side plates 78 and 78b (however, in FIGS. 5 to 7, only the support members 138 attached to the side plates 78m are attached). ) is film-like, but the contact roller 150. Bin 148. If the strength of the bin member 136 etc. is sufficiently large, it is not necessarily necessary to provide each support member 138, and for example, the support member 138 attached to the d side plate 78m or the support member 13 attached to the side plate 78bK
8 may be provided.

A safety switch 1 is installed on the side plate 78m of the movable main frame lO.
52 is fixed, and the actuator 154 of this safety switch 152 abuts the free end of the support member 138.

An elastic member 1 made of rubber or the like is provided on the bottom surface of the movable main frame lO.
56 is fixed with adhesive or the like. This elastic member 156
This reduces the impact generated when the movable main frame 10 is positioned at the operating position, and also positions the movable main frame 10 by positioning the elastic member 156 in the recess formed on the upper surface of the copier nousing 2. It has the effect of ensuring.

Next, the operation of the second document conveying mechanism of the above-mentioned pass curve deriving section 18 will be explained.

When the movable main frame body 10 is in the working position W (position shown in FIGS. 5, 6, and 7-Au) covering the transparent plate 6, each of the protrusions at the free end of the support member □'138 The nine contact rollers 150 provided in the copying machine abut on the upper surface of the coupling 2'', so that the support members 138 are aligned with the center axis of the bin member 136 (support member 13) with respect to the movable main frame 10.
The driven roller 64, which is pivoted clockwise in FIGS. 6 and 7 about the connecting axis 8) and is thus mounted on the driven shaft, ie, the second shaft 140, It protrudes from the opening 132 of the guide plate 62 and is elastically pressed against the surface of the endless conveyor belt 520 attached to the shaft 12g and wound around the nine rollers 46 by the elastic biasing action of the d-curve member 146. At this time, the steel plate 781
Actuator 15 of safety switch 152 provided in
4a, the free end of the support member 138 is pressed to keep the safety switch 152 in an inoperative state.

If a document jams near the second document conveyance mechanism of the curved guide portion 18, that is, between the endless conveyance belt 52 and the roller 64, move the movable main frame 10 from the operating position to the chain double-dashed line in FIG. $3 Rotate it clockwise to the non-operating position shown in the figure. Thus, the passage shown in Figure 7-B,
The support members 138 are automatically rotated by their own weight in the clockwise direction in FIGS. 6 and 17 about the central axis of the bottle member 136 relative to the movable main frame 10, respectively, and The roller 64 is the support shaft 1
28 in a direction away from the roller 46 attached thereto.

When the driven roller 64 is moved in the direction away from the roller 46, each of the bearing members 142 supporting the driven shaft 140 of the driven roller 64 is pushed into the elongated hole 144 formed in the support member 13B by the elastic biasing action of the spring member 146. and the driven roller 64 is further moved from the roller 46 so that the support member 138 is brought into contact with the sixth support member 138.
When the driven shaft 140 is rotated by a predetermined angle in the direction of the hour hand in FIGS. , the support member 1 at this predetermined angle or more
38 pivoting movements are respectively prevented. Thus, the support member 1
38 is rotated by a predetermined angle, the driven roller 64
is V-shaped by a predetermined amount in the direction away from the roller 46, and the nip state between the driven roller 64 and the blush of the non-electrified transport belt 52 wound around the roller 46 is released. The jammed *@ between the roller and the driven roller 64 can be easily removed.

When the movable main frame 1O is rotated to open the eyelids and the support member 138 is pivoted by its own weight, the actuator 154 of the safety switch 152 is released from being suppressed by the free end of the support member 138, and therefore the safety Switch 152 is activated. Thus, the ninth time the semi-automatic document feeding and ejecting device operating path (B) is opened and closed, the semi-automatic document feeding and ejecting device O is prevented from operating.

In the specific example described above, the abutment roller is rotatably mounted on the protrusion provided at the free end of the towing support member to alleviate the shore friction force generated when the movable main frame is positioned at the operating position. However, in some cases, without using this contact roller, a protrusion that protrudes from the lower plate of the movable main frame is simply formed on the free end of the support member, and this protrusion is directly connected to the copier housing. The support member can also be pivoted by this protrusion so as to come into contact with the upper surface of the support member.

In addition, in the specific example described above, the support members are rotatably attached to the side plates of the movable main frame, but each of the support members is made into a single support member, and this support member is attached to the side plate of the movable main frame. It may be rotatably attached to the movable main frame.

Furthermore, in the specific example described above, when the movable main frame is in the operating position, the driven mouth drive wheel attached to the opening shaft is formed in the pair of side plates by the elastic biasing action of the spring member, and forms part of the nine elongated holes. The nine rollers attached to the driven shaft KM are brought into close proximity to the surface of the non-electronic conveyor belt, and when the document is super-fed, these rollers and the non-conveyor belt move the document. The document may be fed by the cooperation between the sailor and the endless conveyor belt.

As described above, in the semi-automatic document feeding and ejecting device having the second document conveying mechanism of the variant example described above, the movable main frame is moved from the working position to the non-working position. When the movable main frame is rotated, the support member provided on the movable main frame rotates due to its own weight, and the driven wheel (second shaft) is moved away from the support shaft (first shaft). It is attached to the endless conveyor belt and the driven wheel (jlZo axis), and the nip state with the roller is released, so even if the document jams in the 20th document conveyor 1111, the movable main frame body can only be rotated once. A jammed document can be easily taken out without being damaged.

Although a specific example of a semi-automatic document feeding and ejecting apparatus constructed according to the present invention has been described above in detail with reference to the accompanying drawings, the present invention is not limited to such specific example, and the scope of the present invention is not limited to this specific example. It is clear that various modifications and variations can be made without departing from the scope of the invention.

[Brief explanation of the drawing]

FIG. 1s1 is a cross-sectional view showing a semi-automatic document feeding and ejecting device constructed in accordance with the present invention. FIG. 2 is a partially cutaway perspective view showing a part of the semi-automatic document feeding and ejecting device shown in FIG. 1; FIG. 3 is a partial sectional view showing a part of the semi-automatic document feeding and ejecting device shown in FIG. 1; Figures 4-A and 4-B are a cross-sectional view taken along line W-IV when the movable main frame in Figure 3 is in the active position, and a cross-sectional view taken on line W-IV when the movable main frame in Figure 3 is in the non-active position. aili by ■-■ line
Figure 1. FIG. 5 is a partial sectional view showing a part of the semi-automatic document feeding and ejecting device shown in FIG. 1. FIG. 6 is a side view showing a part of the semi-automatic document feeding and ejecting device shown in FIG. 1, with the main frame removed. Figure 7 and Figure 7-B are a side view showing a state in which the movable main frame is in the operating position and a side view showing a state in which the movable main frame is rotated to open the eyelids. 2...Using to the copying machine 4...Semi-automatic document feeding and ejecting device 6...Transparent plate 8...Stationary support frame 10...Movable main frame 12...Document transport path )・ 36... Main shaft (first shaft) 38... Roller j 52... Endless conveyor belt 62... Guide plate 72 and 72b... Upright walls 781 and 78b... Side plate 84. ...Connection rod 94...Lock mechanism 128...Support shaft (first shaft) 140...Driver shaft (second shaft) 138...Support member patent applicant Sanda Kogyo Co., Ltd. No. 4 - Figure 7 - Continuation of Figure A, page 1 0 Inventor Masahiro Watashi 1-2-28 Tamatsukuri, Higashi-ku, Osaka-shi Sanda Kogyo Co., Ltd. 0 Inventor Kiyonori Yamamoto 1-2-28 Tamatsukuri, Higashi-ku, Osaka City Inventor: Toshihiko Yamamoto, 1-2-28 Tamatsukuri, Higashi-ku, Osaka Inventor: Shinsuke Yoshinaga, 1-2-28 Tamatsukuri, Higashi-ku, Osaka

Claims (1)

[Scope of Claims] 1. A stationary support frame mounted on the upper surface of the housing adjacent to one side edge of the transparent plate for document placement disposed on the upper surface of the electrostatic copying machine housing, and one end portion. is attached to the stationary support frame so as to be pivotable about a pivot axis extending along the side edge of the transparent plate, between an active position covering the transparent plate and a non-active position exposing the transparent plate. a main frame that can be pivoted to open and close about the pivot axis; The semi-automatic document feeder is equipped with a releasable locking mechanism that automatically operates when the main frame is rotated to prevent the main frame from rotating beyond a predetermined angular position. Supply and discharge equipment. 2. Between the stationary support frame and the main frame, there is a frame that is slidably connected to the main frame in a predetermined direction, and has one end spaced apart from the pivot axis and substantially A rond rotatably connected to the stationary support frame about a parallel connecting axis is interposed, and the locking mechanism includes a locking notch formed on the surface of the rond and a locking notch formed on the surface of the rond, A locking member rotatably attached to the frame is interposed between the main frame and the locking member, and the locking member is elastically moved in the direction of pressing the locking portion of the locking member against the surface of the iron. When the main frame is pivoted to open and close, the iron is pivoted about the connection axis, and the main frame and the locking member are rotated. When the main frame is rotated open from the working position to the predetermined angular position, the locking notch and the locking part of the locking member are aligned, and the spring member is rotated. The locking member is pivoted and tightened by the elastic biasing action, and the locking portion of the locking member enters the locked notch, thus causing the main frame to pivot beyond the predetermined angular position. When this is prevented and the locking member is manually rotated against the elastic biasing action of the spring member to disengage the locking portion of the locking member from the notch, the action of the locking mechanism is released. 2. A semi-automatic document feeding and ejecting mechanism according to claim 1, wherein said frame body can be rotated closed beyond said predetermined angular position. 3. A stationary support frame mounted on the upper surface of the electrostatic copying machine housing adjacent to one side edge of the transparent plate for document placement disposed on the upper surface of the housing; - mounted on the stationary support frame so as to be pivotable about a pivot axis extending along a side edge, and between an active position covering the transparent plate and an inactive position exposing the transparent plate about the pivot axis; a main frame that can be pivoted to open and close as a main frame; and a main portion defined between a lower surface of the main frame and the transparent plate when the main frame is positioned at the operating position. In a semi-automatic document feeding and ejecting device for an electrostatic copying machine, comprising a document transport mechanism mounted on the main frame and the stationary support frame for transporting a document through; is a first shaft rotatably attached to the one end of the main frame body about the pivot axis, and the! at least one roller mounted on a 11!10 axis and rotatable on the stationary support frame opposite the first axis and movable in a direction toward and away from the first axis; a second shaft mounted on the second shaft; at least one roller mounted on the second shaft; interposed between the stationary support frame and the second shaft; a spring member that elastically biases the main frame in a direction toward the axis of the second axis, and the main frame has a spring member that is elastically biased toward the second axis when the main frame is pivoted open from the operating position. a semi-automatic document feeding and ejecting device, further comprising a cam acting on the spring member to move the second shaft away from the first shaft against the elastic biasing action of the spring member. . 4. The semi-automatic document feeding and ejecting device according to claim 3, wherein the main frame has a pair of side plates defining both sides thereof, and one end of the pair of side plates constitutes the cam. . 5. An endless belt having an operating running section extending along the main part of the document conveyance path is wound around the roller attached to the first shaft, and the main frame body is connected to the operating section. When the roller is positioned at the second shaft, the roller mounted on the second shaft is elastically pressed against or approached the endless belt by the elastic biasing action of the spring member. The semi-automatic document feeding and ejecting device described in Section 4. 6. A stationary support frame mounted on the upper surface of the electrostatic copying machine housing adjacent to one side edge of the transparent plate for document placement disposed on the upper surface of the housing; - mounted on the stationary support frame so as to be pivotable about a pivot axis extending along a side edge, the pivot axis being pivotable between an active position covering the transparent plate and an inactive position exposing the transparent plate; A document conveyor including a main frame that can be pivoted to open and close as a center, and a main portion defined between a lower surface of the nematode frame and a cough transparent plate when the main frame is positioned in a coughing position. In a semi-automatic document feeding and ejecting device for an electrostatic copying machine, comprising a document conveying mechanism mounted on a subject body and the stationary support frame for conveying the document through a path; The mechanism includes a first shaft rotatably mounted on the soil mixing frame, at least one roller mounted on the first shaft, and spaced apart from the center axis of the first shaft. a support member rotatably mounted on the lower support member opposite to the tenth shaft; and at least one roller, and when the soil mixing frame is rotated closed and positioned at the operating position, a part of the support member comes into contact with the upper surface of the housing. Then, the line support member is rotated in a predetermined direction with respect to the main frame about the cough connection axis, and the wire support member is thus attached to the shaft of the skeleton rattan 2, and the roller is attached to the first shaft. When the main frame is positioned to cooperate with the rollers and rotated open from the operating position, the support member is oriented in the predetermined direction with respect to the connecting shaft 1IIit-center relative to the soil mixing frame. A semi-automatic document feeder and ejector, characterized in that it is automatically pivoted in the opposite direction, thus separating the roller attached to the second shaft KM from the core roller mounted on the first shaft. ′:“,,Near,# When the main frame body is pivoted open from the operating position, the support member rotates about the connection axis I! with respect to the main frame body due to gravity acting on itself, A semi-automatic document feeding and ejecting device according to claim 6, which is rotated in the opposite direction for ash removal. The semi-automatic document feeding and discharging device according to claim 6 or 7, wherein the cross-contact rollers come into contact with the upper surface of the mixing housing when the frame body is rotated to close the working position IIK.9. The frame has a pair of side plates defining both sides thereof, and a line support member is connected to each of the pair of side plates,
9. The SCO semi-automatic raw material feeding and ejecting device according to any one of claims 6 to 8, wherein each of the two bite portions of the second shaft is respectively attached to a cough support member. IQ, the second shaft is movably attached to the first shaft in the direction approaching and away from the first shaft, and the second shaft is attached between the support member and the rattan 2 @7. The l1l
10. The semi-automatic document feeding and ejecting device according to claim 6, further comprising a spring member elastically biased in a direction approaching the O-axis. 11. An endless belt having an operating running portion extending along the main portion of the document conveyance path is wound around the roller attached to the first shaft, and the main frame body When KFi is positioned at the second shaft, the roller mounted on the second shaft is elastically pressed against or brought close to the endless belt by the elastic biasing action of the spring member. semi-automatic document feeder and ejector. 12. The semi-automatic document feeding and ejecting device according to claim 11, wherein the first shaft and the second shaft are disposed at the other end of the main frame.