JP2007065402A - Paper transporting apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a paper transport apparatus, suppressing the occurrence of damages to a cover by weakening force, when the cover is closed without making operating force in opening and closing of the cover heavier. <P>SOLUTION: The paper transport apparatus 71 is provided with the cover 10 supported to be freely revolved to a housing 11 and can be moved to an opening position and a closing position, a hook 18 provided to the cover 10 with a variable position and a lever 20 operated by a user. When the lever 20 is not operated, the hook 18 is retained in a locked position; and when the cover 10 is in the opened position, the hook 18 restrains the cover 10 in the opened position. During operation, the hook 18 is brought to a released position, and the restraining of the cover 10 in the open position is released. A restricting member 23 is provided on a moving path MK of the hook 18, when the cover 10 is moved from the open position to the closed position and inhibits movement of the cover 10. When the cover 10 is closed, the hook 18 and the restricting member 23 are abutted against each other, and the cover 10 is stopped once. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a sheet conveying device.

The paper conveyance device is used in an image forming apparatus such as a printer or a copying machine, and conveys a paper on which an image is formed along a predetermined conveyance path. The conveyance path is partitioned in the apparatus main body and covered with a cover that is rotatably supported by the apparatus main body (see, for example, Patent Document 1).
This cover is normally locked so as not to be opened in a normal state, and can be opened and closed by manually releasing the lock in order to cope with a trouble such as a paper jam.

In Patent Document 1, a damper is attached to the cover to alleviate the shock of the opening / closing operation.
Japanese Patent Laid-Open No. 11-84982

By the way, the cover may be damaged. As one of the causes, it is considered that the cover is damaged by a shock when the cover is closed with force.
Moreover, in patent document 1, since a damper acts at the time of opening and closing of a cover, the operation force for opening and closing becomes heavy.
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a paper transport device that can suppress the occurrence of damage to the cover without increasing the operating force when the cover is opened and closed.

  A paper transport device according to the present invention is supported by a main body of the device so as to be pivotable and movable to an open position and a closed position, a hook provided on the cover and displaceable between a lock position and a release position, and a user A lever to be operated, which keeps the hook in the locked position when not in operation, and locks the cover in the open position when the cover is in the open position, and puts the hook in the release position when in operation. A lever for releasing the lock in the open position, and a hook movement path for moving the cover from the open position to the closed position, provided on the corresponding hook movement path during the operation of the lever; And a restricting member that prohibits the movement of the cover to the closed position. According to the present invention, the user needs to operate the lever when trying to close the cover from the open position. Therefore, it is possible to prevent the user from closing the cover carelessly. Further, since the hook hits the restricting member while the cover is being closed, the movement of the cover is temporarily stopped, so that the cover is prevented from being vigorously closed. Therefore, it is possible to prevent damage to the cover and the apparatus main body. In addition, the hook and the regulating member do not have a risk of increasing the operating force for opening and closing the cover.

  In the present invention, the cover may include a cover body and a movable cover that is rotatably supported at an end of the cover body. In this case, it is possible to prevent the movable cover from being easily damaged.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
In the present embodiment, description will be given in accordance with a case where the paper transport device is applied to a copying machine as an image forming apparatus. However, the paper transport device is at least a single paper transport device for processing paper such as sorting. It can also be configured as part. The image forming apparatus may be a printer or a facsimile in addition to a copying machine.

FIG. 1 is a schematic diagram illustrating a schematic configuration of a main part of an image forming apparatus according to an embodiment of the present invention.
The image forming apparatus 1 includes a document reading unit 2 as an input unit, an optical unit 3 for obtaining a predetermined beam light corresponding to the image data based on image data given from the document reading unit 2, a predetermined beam An image forming unit 4 for forming a latent image corresponding to light, developing the latent image into a toner image, and transferring the latent image to a sheet as a transfer material; and the toner image transferred by the image forming unit 4 on the sheet A fixing unit 5 that heats and fixes the sheet, and a sheet conveying device 7 that conveys a sheet from the fixing unit 5 along a predetermined conveying path 6 to a paper discharge port (not shown). In FIG. 1, the paper transport path HK transported along the predetermined transport direction by the paper transport device 7 along the predetermined transport direction is indicated by broken lines. In FIG. 1, each part other than the sheet conveying device 7 is schematically illustrated.

The fixing unit 5 includes a heating roller 8 as a heating member and a pressure roller 9 as a pressure member. By passing the paper between the heating roller 8 and the pressure roller 9, the unfixed toner image formed on the paper is fixed.
The paper transport device 7 defines a predetermined transport path 6 on the downstream side of the fixing unit 5 in the paper transport direction. The paper transport device 7 transports the paper through the predetermined transport path 6 and covers the transport path 6 with a cover 10 that can be opened so that troubles such as a paper jam in the predetermined transport path 6 can be handled. ing.

  Specifically, the paper transport device 7 is a device main body and a housing 11 as a fixed portion, a partition member 12 fixed to the housing 11 and defining a predetermined transport path 6, and a first member in the housing 11. The above-described cover 10 that is rotatably supported via the support shaft 13 and covers the predetermined transport path 6 so as to be openable and closable, a first transport roller 14 that is rotatably supported by the partition member 12, and a cover. A second conveying roller 15 rotatably supported by the roller 10 and a separation claw 16 provided on the cover 10 so as to be able to come into contact with the circumferential surface in order to peel the sheet from the circumferential surface of the heating roller 8. Have. Moreover, the 1st conveyance roller 14 is connected with the output shaft of the electric motor (not shown) as a drive source so that a drive is possible.

  2 to 11 are front views of the main part of the sheet conveying apparatus of FIG. Each of FIGS. 2 to 11 illustrates a state in which the cover 10 returns from the closed state to the closed state through the opened state in the order of the numbers. FIG. 2 shows the cover 10 in a closed state. 3, 4 and 5 show a state where the cover 10 is changing from a closed state to an open state. FIG. 6 shows the cover 10 in an open state. 7, 8, 9, 10, and 11 show a state in the middle of the cover 10 from the open state to the closed state. FIG. 1 also schematically shows the state shown in FIG. The following description will be given mainly with reference to FIG. 1 and with reference to other drawings as necessary.

The cover 10 can be moved manually between a closed position (see FIG. 2) and an open position (see FIG. 6).
The cover 10 in the closed position is accommodated in the housing 11 and is disposed to face the partition member 12 with a predetermined gap therebetween, and the predetermined transport path 6 is partitioned by the gap. The partition member 12 and the cover 10 in this state function as a guide member that guides the conveyed paper. When the cover 10 is in the closed position, the separation claw 16 comes into contact with the outer periphery of the heating roller 8, and the first and second transport rollers 14 and 15 are disposed so as to face each other. In addition, the sheet can be conveyed while being sandwiched between the nip portions of the second conveying rollers 14 and 15. That is, when the output shaft of the electric motor rotates in a predetermined direction, the first transport roller 14 rotates in a predetermined direction, and accordingly, the second transport roller 15 and the first transport roller 14 directly. In a state where the sheet is in contact with or in a state where a sheet is sandwiched therebetween, the sheet rotates in the direction opposite to the first conveyance roller 14 in conjunction with the first conveyance roller 14. Thereby, the sheet is conveyed.

Referring to FIG. 6, when the cover 10 is in the open position, a part of the cover 10 is disposed outside the housing 11, and the predetermined transport path 6 is wide on the side opposite to the partition member 12. Along with this, the first and second transport rollers 14 and 15 are spaced apart from each other, and the separation claw 16 is spaced apart from the outer periphery of the heating roller 8.
Returning to FIG. 1, the sheet conveying device 7 is provided with a gripping portion 17 provided on the cover 10 for opening and closing the cover 10 by manual operation, and for locking the cover 10 at the closed position provided on the cover 10. A displaceable hook 18, an engagement pin 19 as an engaging portion fixed to the housing 11 so as to be engageable with the hook 18 in order to lock the cover 10 in the closed position, and the cover 10 in the closed position And a lever 20 for releasing the lock.

  In addition, the sheet conveying device 7 of the present embodiment is configured to lock the cover 10 at the open position, and a movable locking portion 21 provided so as to be integrally movable with the lever 20 to lock the cover 10 at the open position. A fixed locking portion 22 fixed to the housing 11 so as to be locked to the movable locking portion 21 and a hook 18 for temporarily stopping the cover 10 in the process of moving from the open position to the closed position. Thus, a restriction member 23 that restricts the movement of the cover 10 is provided.

  When the cover 10 is in the closed position, the hook 18 and the engagement pin 19 engage with each other in a hooked state, whereby the cover 10 can be locked in the closed position, and functions as a locking mechanism for this purpose. . When the cover 10 is in the open position (see FIG. 6), the movable locking portion 21 and the fixed locking portion 22 are engaged with each other in a hooked state, thereby locking the cover 10 in the open position. And function as a locking mechanism for this. The lever 20 is used for releasing the engagement state by the lock mechanism and the engagement state by the locking mechanism, and is also used for releasing both of these engagement states.

  The lever 20 is rotatably supported by the cover 10 via the second support shaft 24 and is displaced between an operation position (see FIGS. 3 and 7) and a non-operation position (see FIGS. 2 and 6). it can. The lever 20, the hook 18, the movable locking portion 21, and the second support shaft 24 are connected to each other so that they can rotate integrally around the center line of the second support shaft 24 as the rotation center axis. Has been. The lever 20 is elastically biased toward the non-operation position by the biasing member 25.

The hook 18 is interlocked with the lever 20 and is a position corresponding to the non-operation position of the lever 20 with respect to the cover 10 and is also referred to as a lock position (also referred to as a non-release position) for locking the cover 10 to the closed position. 2) and a release position (see FIG. 3) corresponding to the operation position of the lever 20 to release the lock.
The movable locking portion 21 is interlocked with the lever 20, and is a position corresponding to the non-operating position of the lever 20 with respect to the cover 10, and a non-release position (lock position) for locking the cover 10 to the open position. 6) and a release position (see FIG. 7) corresponding to the operation position of the lever 20 and for releasing the locking of the cover 10 to the open position.

  When the lever 20 is not operated (see FIGS. 2 and 6), the lever 20 is displaced to the non-operation position by the urging force of the urging member 25, and accordingly, the hook 18 and the movable locking portion 21 are moved to the respective positions. Displaces to the non-release position. When the cover 10 is in the closed position and the lever 20 is not operated (during non-operation) (see FIG. 2), the hook 18 and the engagement pin 19 are engaged with each other, and the cover 10 is in the closed position. The lock is achieved. When the cover 10 is in the open position and the lever 20 is not operated (see FIG. 6), the movable locking portion 21 and the fixed locking portion 22 are engaged with each other, so that the cover 10 is in the open position. Locked.

  When the lever 20 is operated and rotated to the operation position (see FIGS. 3 and 7), the lever 20 and the grip portion 17 approach each other, and the hook 18 and the movable locking portion 21 are displaced to their respective release positions. When the lever 20 is in the operation position (during operation), the hook 18 is in the release position. Thereby, the lock | rock in the closed position of the cover 10 is cancelled | released, and the cover 10 can be moved from a closed position. Further, when the lever 20 is in the operation position, the movable locking portion 21 is located in the release position. Thereby, the lock | rock in the open position of the cover 10 is cancelled | released, and the cover 10 can be moved from an open position.

  In the present embodiment, in order to move the cover 10 from the open position (FIG. 6) to the closed position (FIG. 2), it is necessary to release the locking by the locking mechanism. is required. When the operator rotates the cover 10 from the open position to the closed position while maintaining the lever 20 in the operation position (see FIG. 7), the hook 18 contacts the restriction member 23 as described later (see FIG. 8). ). As a result, the operation of closing the cover 10 can be temporarily stopped, the cover 10 can be prevented from being closed rapidly, and the occurrence of damage to the cover 10 and the like can be suppressed.

The hook 18 moves along a predetermined movement path MK (shown by a one-dot chain line in FIG. 1) as the cover 10 is moved when the cover 10 is opened and closed. Here, the predetermined movement path MK is a movement trajectory of the hook 18 accompanying the movement of the cover 10, and has an arc shape or a sector shape with a predetermined width in a front view.
The restricting member 23 is disposed on the movement path MK of the hook 18. More specifically, the restricting member 23 can be displaced by rotating around a central axis line between a first position (see FIG. 2) and a second position (see FIG. 4). The restricting member 23 in the first position is restricted from being displaced from the second position toward the first position, and is allowed to be displaced in the reverse direction. The restriction member 23 at the first position is disposed on the movement path MK of the hook 18 at the release position and the movement path MK of the hook 18 when the cover 10 is moved from the open position to the closed position. The restricting member 23 arranged in this way hits the hook 18 in the release position in the cover 10 in the middle of closing, and prohibits the movement of the cover 10 to the closed position. It should be noted that at least a part of the restricting member 23 only needs to be disposed so as to overlap the movement path MK of the hook 18 at the release position when the cover 10 is closed.

  Further, the regulating member 23 in the second position is located outside the movement path MK and allows the cover 10 to move. At the same time, the restricting member 23 is elastically urged toward the first position by the urging member 26. When the cover 10 is opened, the restricting member 23 is temporarily displaced from the first position to the second position to allow the cover 10 to move, and then elastically autonomously moves to the first position. It is supposed to go back.

  The housing 11 is a support member that supports the restriction member 23 and the cover 10 in common, and is a fixing member. The housing 11 includes a pair of side plates 11a disposed on both sides of the predetermined conveyance path 6, and a connecting member 11b that connects the pair of side plates 11a to each other. The pair of side plates 11a is a direction perpendicular to the sheet conveyance direction in the predetermined conveyance path 6 and along the sheet surface of the sheet conveyed through the predetermined conveyance path 6 (corresponding to the direction perpendicular to the sheet surface of FIG. (Also referred to as the width direction of the paper)), and are arranged in parallel and facing each other with a predetermined interval therebetween.

  The cover 10 is disposed between the pair of side plates 11 a of the housing 11. The shape of the cover 10 as a whole changes between an open position and a closed position. In the open position, the cover 10 has a bent shape (see FIG. 6). In the closed position, the cover 10 extends straight and parallel to the partition member 12. It has a shape (see FIG. 2). By deforming the cover 10 in this way, interference between the separation claw 16 and the heating roller 8 can be prevented when the cover 10 is opened and closed.

  Specifically, the cover 10 includes a plate-shaped cover main body 27 that is rotatably connected to the housing 11 via the first support shaft 13 described above, and the above-described second support shaft connected to the cover main body 27. A plate-like first movable cover 28 that is rotatably connected via a plate 24, and a plate-like second movable cover 28 that is movably connected to the first movable cover 28 via a third support shaft 29. The movable cover 30 is provided. The first support shaft 13, the second support shaft 24, and the third support shaft 29 are arranged in parallel to each other, and are all arranged in parallel in the width direction of the sheet. The first support shaft 13 is supported on the side plate 11 a of the housing 11.

The cover main body 27 rotates about the center line of the first support shaft 13 as a rotation center axis with respect to the housing 11 to a first position corresponding to the closed position of the cover 10 (see FIG. 2). ) And a second position (see FIG. 6) corresponding to the open position.
Further, the cover body 27 is urged to rotate by the urging member 31 toward the second position with respect to the housing 11. The urging member 31 includes a torsion coil spring attached to surround the first support shaft 13.

  When the cover 10 is in the closed position (see FIG. 2), the cover main body 27 is disposed so as to face the partition member 12 and is further downstream in the transport direction than the first and second transport rollers 14 and 15. It functions as a guide member for guiding paper. The first support shaft 13 is disposed through one end of the cover main body 27. The second transport roller 15 is disposed at the other end 27 a of the cover body 27. In addition, a grip portion 17 is disposed at the other end of the cover main body 27 and in the vicinity of the second transport roller 15. A second support shaft 24 is disposed between the second conveying roller 15 and the grip portion 17 which is the other end of the cover main body 27. The second support shaft 24 passes through the cover main body 27 and the first movable cover 28.

The first movable cover 28 rotates with respect to the cover body 27 around the center line of the second support shaft 24 as the second rotation center axis, and corresponds to the closed position of the cover 10. It is possible to move to a first position (see FIG. 2) and a second position (see FIG. 6) corresponding to the open position.
The first movable cover 28 is disposed to face the partition member 12 when the cover 10 is in the closed position (see FIG. 2), and in the section from the fixing unit 5 to the second transport roller 15 in the transport direction. It functions as a guide member for guiding paper. A second support shaft 24 is disposed at one end of the first movable cover 28. Further, the separation claw 16 is disposed at the other end of the first movable cover 28. Further, the first movable cover 28 has a guide groove 32 as a guide portion for guiding the second movable cover 30.

The guide groove 32 extends in the paper transport direction when the cover 10 is in the closed position (see FIG. 2), and extends from one end of the first movable cover 28 to the other end. A third support shaft 29 as a guide portion is inserted and fitted into the guide groove 32. The third support shaft 29 moves along the guide groove 32 so that the movement of the second movable cover 30 can be guided.
A third support shaft 29 is disposed at one end of the second movable cover 30. The second movable cover 30 can move along the guide groove 32 via the third support shaft 29, and the first movable cover 30 is moved around the center line of the third support shaft 29 as the third rotation center axis. And a second position corresponding to the open position of the cover 10 (see FIG. 6) and a first position corresponding to the closed position of the cover 10 (see FIG. 6). ). In the first position, the third support shaft 29 is located at the end of the guide groove 32 on one end side of the first movable cover 28, and in the second position, the third support shaft 29 is the first movable cover. The cover 28 is located at the end of the guide groove 32 on the other end side.

  The first movable cover 28 is provided with a biasing member (not shown) that biases the second movable cover 30 to the second position. Further, the housing 11 abuts against the third support shaft 29 so that the second movable cover 30 is placed on the first movable cover 28 when the cover 10 is moved to the closed position. A contact member (not shown) for restricting the movement of the support shaft 29 is provided. The housing 11 is provided with a guide portion (not shown) that guides the movement of the first movable cover 28 when the cover 10 is positioned in the vicinity of the closed position.

The opening / closing operation of the cover 10 will be described. First, referring to FIG. 2, when the cover 10 is in the closed position, the cover main body 27, the first movable cover 28, and the second movable cover 30 are in their respective first positions, and the first movable The cover 28 and the cover main body 27 have a shape extending straight, and the second movable cover 30 is placed on the first movable cover 28.
3 and 4, to open the cover 10, the lever 20 is operated to release the engagement between the hook 18 and the engagement pin 19, and the lever 20 and the gripping portion 17 are clamped. When the cover 10 is pulled up and rotated, the cover 10 is configured to autonomously deform into a folded state. That is, by the above-described guide portion that guides the movement of the first movable cover 28, the first movable cover 28 is moved to the predetermined position in the predetermined direction according to the movement of the cover 10 to the open position. The cover body 27 and the first movable cover 28 are lifted to be bent. At the same time, the second movable cover 30 protrudes on the first movable cover 28 and covers the separation claw 16 by the biasing of the biasing member that biases the second movable cover 30.

  As shown in FIG. 4, when the cover 10 is opened, the hook 18 and the restricting member 23 collide with each other in the middle of the opening, but the displacement of the restricting member 23 to the second position allows the cover 10 to move. Is done. With reference to FIG. 5, when the cover 10 is rotated to the maximum angle, the cover main body 27 comes into contact with the connection member 11 b of the housing 11. As shown in FIG. 6, when the operation of the lever 20 is stopped, the lever 20 elastically returns to the original position. Accordingly, the fixed locking portion 22 of the connection member 11b and the movable locking portion 21 of the cover 10 are engaged with each other. In this engaged state, the cover 10 cannot rotate.

  Referring to FIG. 6, when cover 10 is in the open position, cover main body 27, first movable cover 28, and second movable cover 30 are in their corresponding second positions. The first movable cover 28 and the cover main body 27 are arranged in a bent shape, and the second movable cover 30 protrudes from the other end of the first movable cover 28. The protruding tip of the second movable cover 30 covers the separation claw 16.

  Referring to FIG. 7, to close cover 10, lever 20 is operated and displaced to the released state. Thereby, the engagement by the locking mechanism is released, and the cover body 27 can be rotated. At this time, the cover 10 is rotated with the lever 20 and the gripping portion 17 being pinched. The hook 18 in the release position rotates together with the cover body 27, and the cover body 27 is rotated by a predetermined angle from the second position (see FIG. 6), and the cover 10 is in the middle of closing. 18 abuts on the regulating member 23 as shown in FIG. As a result, the rotation of the cover 10 is temporarily stopped.

  In order to move the cover 10 to the closed position from the state where the hook 18 and the regulating member 23 are in contact with each other, the operation of the lever 20 is stopped as shown in FIG. As a result, the hook 18 is displaced to the non-release position. Since the restricting member 23 is disposed off the movement path (not shown) of the hook 18 displaced to the non-releasing position, the lever 20 is not being operated, so that as shown in FIG. Movement to the 10 closed position is allowed. At this time, the cover 10 can be rotated by pinching only the grip portion 17.

  Referring to FIG. 11, the third support shaft 29 moves along the guide groove 32, and the second movable cover 30 is placed on the first movable cover 28. In addition, the above-described guide portion that guides the movement of the first movable cover 28 causes the first movable cover 28 to move to the predetermined position in the predetermined direction according to the movement of the cover 10 to the closed position. It is designed to rotate autonomously. Further, the inclined surface of the hook 18 is guided while abutting on the engagement pin 19, the hook 18 elastically climbs over the engagement pin 19, and the hook 18 and the engagement pin 19 are autonomously engaged. .

  As described above, in the present embodiment, the lever 20 is a lever operated by the user. When the lever 20 is not operated, the hook 18 is kept in the locked position, and when the cover 10 is in the open position, the cover 10 is in the open position. During the operation, the hook 18 is set to the release position, and the lock at the open position of the cover 10 is released. The restricting member 23 is a movement path of the hook 18 when moving the cover 10 from the open position to the closed position, and is provided on the movement path MK of the hook 18 corresponding to the operation of the lever 20. The movement of the cover 10 to the closed position is prohibited. Accordingly, when the cover 10 is to be closed from the open position, it is necessary to operate the lever 20, so that the user can be prevented from closing the cover 10 carelessly. Further, since the hook 18 hits the restricting member 23 while the cover 10 is being closed, the movement of the cover 10 is temporarily stopped, so that the cover 10 is prevented from being closed momentarily. Therefore, it is possible to prevent the cover 10 and the housing 11 from being damaged. The hook for obtaining this effect may be provided on the cover 10 and can be displaced between the lock position and the release position and can be displaced with the movement of the lever 20. Further, the hook 18 and the regulating member 23 do not have a risk of increasing the operating force for the opening / closing operation of the cover 10.

Since the lever 20 is commonly used for unlocking the cover 10 at the closed position and releasing the temporary stop of the closing operation, the number of parts can be reduced and the structure can be simplified.
Since the hook 18 is commonly used for locking the cover 10 at the closed position and temporarily stopping the closing operation, the number of parts can be reduced and the structure can be simplified.
In the present embodiment, the cover 10 includes a cover main body 27 and first and second movable covers 28 and 30 as movable covers that are rotatably supported by the end portions 27 a of the cover main body 27. It is out. Although these movable covers tend to be easily damaged, in this embodiment, the occurrence of this damage can be prevented.

Moreover, the following modifications can be considered about this embodiment. In the following description, differences from the above-described embodiment will be mainly described, and the same components are denoted by the same reference numerals and description thereof is omitted.
In the above-described embodiment, the cover 10 has the first and second movable covers 28 and 30 as movable covers, but is not limited to this. For example, a configuration in which the second movable cover 30 is eliminated can be considered. Further, the extending direction of the rotation center axis for rotating the cover 10 may be a direction other than the width direction of the sheet. As the cover, a cover (not shown) that does not have a movable cover may be used. Even in this case, the above-described restriction member 23 is provided to suppress the occurrence of damage to the cover when it is closed quickly. it can. Moreover, although the regulating member 23 was displaceable, the structure fixed to the above-mentioned 1st position is also considered. In addition to the cover 10 provided with the separation claw 16, a cover (not shown) without the separation claw 16 may be used. In addition, various design changes can be made within the scope of matters described in the claims.

FIG. 2 is a schematic diagram of a main part of an image forming apparatus including a paper transport device according to an embodiment of the present invention. FIG. 2 is a front view of a main part of the sheet conveying device of FIG. FIG. 2 is a front view of a main part of the sheet conveying device in FIG. 1, showing a halfway state when a cover is moved from a closed position to an open position. FIG. 4 is a front view of a main part of the sheet conveying apparatus in FIG. 1 and shows a state after the state in FIG. 3. FIG. 5 is a front view of a main part of the sheet conveying device in FIG. 1 and shows a state after the state in FIG. 4. FIG. 2 is a front view of a main part of the sheet conveying device shown in FIG. 1 and shows a state where a cover is in an open position. FIG. 2 is a front view of a main part of the sheet conveying device in FIG. 1, showing a halfway state when a cover is moved from an open position to a closed position. FIG. 8 is a front view of a main part of the sheet conveying device in FIG. 1 and shows a state after the state in FIG. 7. FIG. 9 is a front view of a main part of the sheet conveying device in FIG. 1 and shows a state after the state in FIG. 8. FIG. 10 is a front view of a main part of the sheet conveying device in FIG. 1 and shows a state after the state in FIG. 9. It is a front view of the principal part of the paper conveying apparatus of FIG. 1, and shows the state after the state of FIG.

Explanation of symbols

7 ... paper transport device 10 ... cover 11 ... housing (device main body)
DESCRIPTION OF SYMBOLS 18 ... Hook 20 ... Lever 23 ... Restriction member 27 ... Cover main body 27a ... End part of cover main body 28 ... 1st movable cover (movable cover)
30 ... Second movable cover (movable cover)
MK ... Hook movement path

Claims (2)

A cover that is rotatably supported by the apparatus body and is movable to an open position and a closed position;
A hook provided on the cover and displaceable between a lock position and a release position;
A lever operated by a user, which keeps the hook in the locked position when not operated, and locks the cover in the open position when the cover is in the open position, and places the hook in the released position during the operation, and A lever that unlocks the cover in the open position;
This is a hook movement path when moving the cover from the open position to the closed position, and is provided on the corresponding hook movement path during the operation of the lever, and the cover is prohibited from moving to the closed position by hitting the hook. A regulating member;
A sheet conveying apparatus comprising: In the paper conveying apparatus according to claim 1,
The cover includes a cover main body and a movable cover rotatably supported at an end of the cover main body.

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