JP2018064176A - Printer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a printer capable of restraining a lock mechanism from becoming larger.SOLUTION: A printer includes: a printing unit; a body section; a first opening/closing body (image reading device 13) provided in an openable/closable manner to the body section; a second opening/closing body provided in an openable/closable manner to the first opening/closing body; and a lock mechanism 30. The lock mechanism includes: a first lock member 40 movable between a locking position to lock the body section and the first opening/closing body and a non-locking position not to lock them; a second lock member 50 movable between a locking position to lock the first opening/closing body and the second opening/closing body and a non-locking position not to lock them; and a guide member 60. The first lock member and the second lock member cooperate with each other such that when one is at the locking position, the other is at the non-locking position. The guide member is provided with a first guide section 62 and a second guide section 63 that independently engage with a first pin 53 and a second pin 54 included in the second lock member.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a printing apparatus such as an ink jet printer.

  2. Description of the Related Art Conventionally, there is known a printing apparatus in which an image reading apparatus and an automatic feeding apparatus are arranged on top of an apparatus main body. In such a printing apparatus, there is an apparatus in which an image reading apparatus is provided so as to be openable / closable with respect to the apparatus main body, and an automatic feeding apparatus is provided so as to be openable / closable with respect to the image reading apparatus (for example, Patent Document 1). The printing apparatus of Patent Document 1 includes a lock mechanism that locks the image reading device so that it does not open when the automatic feeding device is opened, and locks the automatic feeding device so that it does not open when the image reading device is opened. Yes.

  The lock mechanism guides the movement of the first lock member that can lock the apparatus main body and the image reading device, the second lock member that can lock the image reading device and the automatic feeding device, and the movement of the second lock member. A position regulating member. The first lock member is provided so as to be displaced between the lock position and the unlock position by sliding in a direction intersecting the vertical direction, and the second lock member is unlocked and unlocked by rotating. It is provided to be switchable between positions. The position restricting member is provided with one groove portion that engages with the first pin and the second pin of the second lock member. The second lock member is guided by the position regulating member as the first pin and the second pin move along the groove.

JP 2014-192591 A

  By the way, in the printing apparatus of Patent Document 1, since it is necessary to provide a groove portion so that the two pins of the first pin and the second pin are engaged together, the length of the groove portion tends to be long, and the lock mechanism There is a fact that it leads to an increase in size.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a printing apparatus capable of suppressing an increase in the size of a lock mechanism.

Hereinafter, means for solving the above-described problems and the effects thereof will be described.
A printing apparatus that solves the above problems includes a printing unit that performs printing on a medium, a main body that accommodates the printing unit, a first opening / closing body that can be opened and closed with respect to the main body, and the first opening / closing body. A second opening / closing body provided to be openable / closable, and a locking mechanism that locks the other so that the other does not open when one of the first opening / closing body and the second opening / closing body is open, The lock mechanism includes a first lock member that is movable between a lock position that locks the main body and the first opening / closing body and an unlocking position that does not lock, the first opening / closing body, and the second opening / closing body. A second locking member that can be moved between a locking position that locks and a non-locking position that does not lock, and a guide member that guides the movement of the second locking member, and the first locking member and One of the second locking members is The first locking member moves between the locked position and the unlocked position by moving in a direction intersecting the vertical direction so that the other is positioned in the unlocked position when the other is positioned in the locked position. The second lock member is displaced to be displaced between a locked position and an unlocked position by rotating, and the first pin and the second pin of the second lock member are respectively provided on the guide member. A first guide portion and a second guide portion that are independently engaged are provided.

  According to this configuration, since the first pin and the second pin are independently engaged with the first guide portion and the second guide portion, respectively, for example, the first pin and the second pin are engaged with one common guide portion. The length of the guide portion can be shortened as compared with the combined configuration. By reducing the length of the guide portion, the degree of freedom in design of the lock mechanism is improved, which can contribute to downsizing of the lock mechanism. Therefore, the enlargement of the lock mechanism can be suppressed.

In the printing apparatus, it is preferable that the first guide portion and the second guide portion are provided such that a part of the first guide portion and the second guide portion overlap in the moving direction of the first lock member.
According to this structure, since the area | region which a 1st guide part and a 2nd guide part occupy becomes small in the moving direction of the 1st locking member which is a direction which cross | intersects an up-down direction, the enlargement of a locking mechanism can be suppressed.

In the printing apparatus, it is preferable that the first guide portion and the second guide portion are provided so that a part of the first guide portion and the second guide portion overlap in the vertical direction.
According to this structure, since the area | region which a 1st guide part and a 2nd guide part occupy in an up-down direction becomes small, the enlargement of a lock mechanism can be suppressed.

  In the printing apparatus, the first guide portion and the second guide portion have a portion extending in a vertical direction, and the second lock member is disposed on the lower portion of the second guide portion. It is preferable that an allowance portion that allows movement of the second pin is provided so as to be rotatable about the pin.

  According to this configuration, since the second lock member can be rotated around the first pin by the allowance portion, the second lock portion in the second guide portion is independent of the position of the first pin in the first guide portion. The rotation operation of the second lock member is allowed based on the pin position. That is, the lock mechanism can be simplified in comparison with a configuration that allows the second locking member to rotate based on the positions of both the first pin and the second pin.

In the printing apparatus, it is preferable that the first pin has a non-arc-shaped cutout at an upper end portion thereof, and the cutout can be brought into surface contact with an upper edge of the first guide portion.
According to this structure, when the notch part of a 1st pin contacts the upper edge of a 1st guide part, the attitude | position of a 2nd lock member can be maintained constant.

1 is a perspective view illustrating an embodiment of a printing apparatus. FIG. 3 is a perspective view when the image reading apparatus is opened. The perspective view when an automatic feeding apparatus opens. The perspective view of a locking mechanism. Sectional drawing which shows a locking mechanism. The side view which shows a 1st guide part and a 2nd guide part. Sectional drawing when an image reading apparatus opens. Sectional drawing when an automatic feeding apparatus opens.

Hereinafter, an embodiment of an ink jet printer which is a kind of printing apparatus will be described with reference to the drawings.
As shown in FIG. 1, the printing apparatus 11 includes a main body portion 12 constituting the apparatus main body, an image reading device 13 as a first opening / closing body provided to be openable / closable with respect to the main body portion 12, and an image reading device 13. An automatic feeding device 14 as a second opening / closing body provided to be openable / closable is provided. The printing apparatus 11 is configured such that the image reading device 13 is disposed above the main body unit 12, and the automatic feeding device 14 is disposed above the image reading device 13, which are stacked in the vertical direction Z. The image reading device 13 is a device that reads images such as characters and photographs recorded on a document, and the automatic feeding device 14 is a device that feeds the document toward the image reading device 13.

  The main body unit 12 is provided with an operation unit 15 for operating the printing apparatus 11 in an integrated manner on the front surface of the printing apparatus 11. The operation unit 15 includes, for example, a touch panel type liquid crystal screen and buttons for operation. Further, on the front surface of the main body 12, below the operation unit 15, a first medium storage unit 16 and a second medium storage unit 17 that can store media such as sheets in a stacked state are provided in the front-rear direction of the printing apparatus 11. It is provided so that attachment or detachment is possible. The first medium storage unit 16 and the second medium storage unit 17 are provided so as to overlap in the vertical direction Z, and the first medium storage unit 16 is disposed above the second medium storage unit 17. Then, in the vertical direction Z, the medium that has been transported and printed from the first medium storage unit 16 and the second medium storage unit 17 between the operation unit 15 and the first medium storage unit 16 is the main body unit 12. A discharge port 18 for discharging from the inside to the outside of the main body 12 is provided.

  As shown in FIG. 2, the image reading device 13 is attached to the main body 12 via a rotating mechanism 19 such as a hinge provided on the rear surface side opposite to the front surface side of the printing device 11. . The image reading device 13 can be opened and closed with respect to the main body 12 by the rotation mechanism 19. The image reading device 13 is, for example, a link mechanism provided on the right end side opposite to the left end side on which the rotation mechanism 19 is provided in the left-right direction of the printing device 11 intersecting the front-rear direction of the printing device 11. The posture is held by the holding mechanism 20.

  When the image reading device 13 is opened with respect to the main body 12 around the rotation mechanism 19, the inside of the main body 12 is exposed. A printing unit 21 that performs printing on a medium is provided in the main body unit 12. The printing unit 21 accommodated in the main body unit 12 is movable in the scanning direction X along the left-right direction of the printing apparatus 11. A plurality of liquid containers 22 that store liquids such as ink are detachably mounted on the printing unit 21. The printing unit 21 performs printing by ejecting the liquid stored in the liquid container 22 while moving along the scanning direction X to the medium moving along the sub-scanning direction Y intersecting the scanning direction X. I do. That is, in the present embodiment, the sub-scanning direction Y is a direction along the front-rear direction of the printing apparatus 11.

  As shown in FIG. 3, the automatic feeding device 14 is attached to the image reading device 13 via a rotation mechanism 23 and a holding mechanism 24 provided on the rear surface side of the printing device 11. The rotating mechanism 23 and the holding mechanism 24 have the same functions as the rotating mechanism 19 and the holding mechanism 20 provided between the image reading device 13 and the main body 12, respectively. When the automatic feeding device 14 is opened with respect to the image reading device 13, the transparent plate 25 provided on the upper surface of the image reading device 13 is exposed. The transparent plate 25 is made of a transparent material such as glass, and the image reading device 13 is capable of reading an image of a document placed on the transparent plate 25. The printing apparatus 11 includes a lock mechanism 30 that locks the image reading apparatus 13 and the automatic feeding apparatus 14 so that the other does not open when one is open. The lock mechanism 30 according to the present embodiment is provided in a corner on the front side and the left end side of the printing apparatus 11 in the image reading apparatus 13.

  Next, the configuration of the lock mechanism 30 will be described. In the following description, for convenience of description, in the scanning direction X, the right end side of the printing apparatus 11 is referred to as + X side, and the left end side thereof is referred to as −X side. In the sub-scanning direction Y, the front side of the printing apparatus 11 is referred to as + Y side, and the rear side is referred to as -Y side. In the vertical direction Z, the upper side of the printing apparatus 11 is referred to as + Z side, and the lower side is referred to as −Z side.

  As shown in FIGS. 4 and 5, the lock mechanism 30 locks the first lock member 40 that locks the main body 12 and the image reading device 13, and the second that locks the image reading device 13 and the automatic feeding device 14. The lock member 50 includes a guide member 60 that is assembled with the first lock member 40 and the second lock member 50 and guides the movement of the second lock member 50. The lock mechanism 30 includes a first biasing member 71 that biases the first lock member 40 and a second biasing member 72 that biases the second lock member 50 with respect to the guide member 60. Yes. The lock mechanism 30 according to the present embodiment is attached to the image reading device side frame 81 of the image reading device 13, and the first lock member 40 is positioned on the −Y side in the sub-scanning direction Y with respect to the second lock member 50. Is configured to do.

  The guide member 60 is provided so as to surround the first lock member 40 and the second lock member 50. The guide member 60 has a pair of plate-like portions 61 that face each other in the scanning direction X so as to sandwich the first lock member 40 and the second lock member 50. In the pair of plate-like portions 61 extending along the sub-scanning direction Y, the first guide portion 62 and the second guide portion 63 for guiding the movement of the second lock member 50 pass through the plate-like portion 61. It is provided for each. Further, the guide member 60 has an assembly portion 64 for assembling the lock mechanism 30 to the image reading device side frame 81 at a portion on the + Y side in the sub-scanning direction Y.

  The assembly portion 64 is assembled such that a claw portion 65 extending in the up-down direction Z to the −Z side so as to form a hook shape is engaged with an engagement portion 82 provided on the image reading apparatus side frame 81. Yes. Further, the guide member 60 has a fixing portion 66 for fixing the lock mechanism 30 to the image reading apparatus side frame 81 at a portion on the −Y side in the sub-scanning direction Y. The fixing portion 66 extends in a plate shape along the scanning direction X so as to be bent from the end portions of the pair of plate-like portions 61. The fixing portion 66 is configured such that a plate-like retaining portion 67 extending from the surface on the −Y side in the sub-scanning direction Y toward the −Y side is fastened to the image reading device side frame 81 with a screw 90. It is fixed.

  The first locking member 40 includes a collar 41 for locking the image reading device 13 with respect to the main body 12, and a moving unit 42 that can move so as to slide along the sub-scanning direction Y that intersects the vertical direction Z. And. The collar portion 41 is provided so as to extend from the moving portion 42 to the −Z side in the up-down direction Z, and a tip portion that is + Y side in the sub-scanning direction Y is provided on the main body side frame 83 included in the main body portion 12. The engaging portion 84 can be engaged. Note that the engaging portion 84 provided on the main body side frame 83 has a tip portion that is on the + Z side in the vertical direction Z when the image reading device 13 is closed with respect to the main body portion 12. It extends toward the space area between the plate-like parts 61 to constitute, and is in contact with a part of the second lock member 50.

  A first urging member 71 that urges the first lock member 40 is attached to the moving part 42. The first urging member 71 is made of, for example, a spring or rubber, and one end thereof is attached to the surface on the + Y side in the sub-scanning direction Y at the fixed portion 66, and the other end faces the fixed portion 66 at the moving portion 42. It is attached to the attachment part 43 provided so that it may do. The first biasing member 71 biases the moving unit 42 toward the + Y side in the sub-scanning direction Y. That is, the first locking member 40 moves the collar part 41 together with the moving part 42 to the + Y side by the urging force of the first urging member 71, so that the collar part 41 is engaged with the engaging part 84 of the main body side frame 83. The engaging position, that is, the locking position (see FIG. 8) for locking the main body 12 and the image reading device 13 is movable.

  In the moving part 42, a contact part 44 provided at a part on the + Y side in the sub-scanning direction Y is in contact with a part of the second lock member 50. Therefore, in the first lock member 40, the second lock member 50 in contact with the contact portion 44 opposes the urging force of the first urging member 71, so that the flange portion 41 is engaged with the engaging portion 84 of the main body side frame 83. The main body 12 and the image reading device 13 are not locked and locked at a non-locking position. The contact portion 44 is inclined so as to have an upward gradient from the + Y side to the −Y side in the sub-scanning direction Y.

  As shown in FIGS. 5 and 6, the second lock member 50 is movable so as to be movable while being guided by a hook portion 51 for locking the automatic feeding device 14 with respect to the image reading device 13 and a guide member 60. Part 52. The hook portion 51 is provided so as to extend from the portion that is on the + Y side in the sub-scanning direction Y in the movable portion 52 toward the + Z side in the vertical direction Z, and is attached to the automatic feeding device side frame 85 that the automatic feeding device 14 has. It is possible to engage with the provided engaging portion 86. Further, the automatic feeder side frame 85 has a guide portion 87 that curves so as to guide the tip portion on the + Z side in the vertical direction Z toward the engagement portion 86 in the hook portion 51 of the second lock member 50. doing. When the automatic feeding device 14 is closed with respect to the image reading device 13, the guide portion 87 is in contact with the tip portion on the + Z side in the vertical direction Z in the hook portion 51.

  The movable part 52 has a cylindrical first pin 53 and a second pin 54 that engage with a first guide part 62 and a second guide part 63 provided on the guide member 60 independently of each other. The first pin 53 is provided on the + Y side with respect to the second pin 54 in the sub-scanning direction Y, and is formed so as to cut out a part of the first pin 53 at a portion on the + Z side in the vertical direction Z. In addition, it has a notch 55 having a non-arc shape. Further, the movable portion 52 has a sliding portion 56 having an arc shape at a tip portion on the −Y side in the sub-scanning direction Y. The sliding portion 56 is in contact with the contact portion 44 of the first lock member 40. That is, the sliding portion 56 of the second lock member 50 restricts the movement of the first lock member 40. In addition, the movable portion 52 has a contact portion 57 with which a tip portion on the + Z side in the vertical direction Z contacts with the engaging portion 84 of the main body side frame 83.

  The first guide portion 62 and the second guide portion 63 with which the first pin 53 and the second pin 54 of the second lock member 50 are engaged are provided so as to extend along the vertical direction Z. Further, the first guide portion 62 and the second guide portion 63 are provided so that some areas overlap each other in the sub-scanning direction Y and the vertical direction Z. The first guide portion 62 extends along the vertical direction Z so that the width in the sub-scanning direction Y is constant, and the lower edge on the −Z side has an arc shape, while the upper edge on the + Z side has the sub-edge. It is configured to form a straight line along the scanning direction Y.

  The second guide portion 63 has a portion extending so that the width in the sub-scanning direction Y gradually increases in the vertical direction Z from the + Z side to the −Z side. Further, the second guide portion 63 has a portion extending along the vertical direction Z so as to bend from the lower side, which is the −Z side, toward the + Y side in the sub-scanning direction Y. The lower portion of the second guide portion 63 that extends so as to be bent is an allowance portion 68 that allows the second lock member 50 to rotate. That is, the second guide portion 63 is provided such that the upper end portion thereof overlaps with the lower end portion of the first guide portion 62 in the vertical direction Z, and the allowance portion 68 is a part of the first guide portion 62 in the sub-scanning direction Y. It is provided so that it may overlap. Then, the second lock member 50 is engaged with the first guide portion 62 and the second guide portion 63 by engaging the first pin 53 and the second pin 54 with the first guide portion 62 and the second guide portion 63, respectively. The movement is guided along.

  A second urging member 72 that urges the second lock member 50 is attached to the hook portion 51. Similar to the first urging member 71, the second urging member 72 is made of, for example, a spring or rubber, and one end of the second urging member 72 is a pedestal having a disk shape provided at a portion on the −Z side in the vertical direction Z. It is attached to the surface of the portion 58 on the −Z side. The other end of the second urging member 72 is attached to one surface of the assembly portion 64 of the guide member 60 that faces the pedestal portion 58. The second urging member 72 urges the hook portion 51 toward the + Z side in the vertical direction Z.

  Here, when the second urging member 72 urges the hook portion 51, the second locking member 50 guides the tip portion of the hook portion 51 toward the engaging portion 86 of the automatic feeding device side frame 85. While moving along the portion 87 and moving so that the second pin 54 fits in the allowance portion 68 along the second guide portion 63, the second pin 54 rotates around the first pin 53. That is, the second locking member 50 is rotated about the first pin 53 by the urging force of the second urging member 72, so that the hook portion 51 is engaged with the engaging portion 86 of the automatic feeding device side frame 85. It is possible to move to a position to be joined, that is, to a lock position (see FIG. 7) for locking the image reading device 13 and the automatic feeding device 14.

  In the movable portion 52, an abutting portion 57 provided adjacent to the sliding portion 56 is in contact with the engaging portion 84 of the main body side frame 83. Therefore, the second lock member 50 regulates the rotation operation of the second lock member 50 by the engaging portion 84 of the main body side frame 83 opposing the urging force of the second urging member 72, and the hook portion 51 is stopped at a position where it does not engage with the engaging portion 86 of the automatic feeding apparatus side frame 85, that is, at a non-locking position where the image reading apparatus 13 and the automatic feeding apparatus 14 are not locked. Further, the second urging member 72 is subjected to a force to move toward the + Z side in the vertical direction Z by the second urging member 72, but the guide portion 87 of the automatic feeding device side frame 85 is connected to the hook portion 51. Since contact is made so as to suppress the tip portion, the second lock member 50 is restricted from moving so as to slide to the + Z side.

Next, the operation of the printing apparatus 11 configured as described above will be described with particular attention to the lock mechanism 30.
As shown in FIG. 7, when the image reading device 13 is opened with respect to the main body portion 12, the main body portion side frame 83 and the image reading device side frame 81 are separated from each other, and the engagement provided on the main body portion side frame 83. The contact portion 57 provided on the movable portion 52 of the second locking member 50 is not in contact with the portion 84. That is, since the engaging portion 84 of the main body side frame 83 that restricts the turning operation of the second locking member 50 is separated from the contact portion 57, the second locking member 50 is biased by the biasing force of the second biasing member 72. Rotates around the first pin 53.

  When the second lock member 50 rotates, the hook portion 51 moves so as to be guided by the guide portion 87 of the automatic feeding device side frame 85, and the sliding portion 56 of the movable portion 52 is locked to the first lock. The second pin 54 moves so as to be accommodated in the allowable portion 68 while sliding with the contact portion 44 of the member 40. Then, the hook portion 51 is engaged with the engaging portion 86 of the automatic feeding device side frame 85, whereby the image reading device 13 and the automatic feeding device 14 are locked. That is, the lock mechanism 30 locks the image feeding device 13 so that the automatic feeding device 14 is not opened when the image reading device 13 is opened with respect to the main body unit 12. When the opened image reading device 13 is closed, the engaging portion 84 of the main body side frame 83 comes into contact with the contact portion 57 of the second lock member 50 so that the second lock member 50 is not locked. Rotate to position. That is, the second lock member 50 is displaced between the locked position and the unlocked position by rotating, and is movable between the two positions.

  As shown in FIG. 8, when the automatic feeding device 14 is opened with respect to the image reading device 13, the image reading device side frame 81 and the automatic feeding device side frame 85 are separated from each other, and the automatic feeding device side frame 85. The guide portion 87 provided on the second lock member 50 and the hook portion 51 of the second lock member 50 are not in contact with each other. That is, since the guide portion 87 of the automatic feeding device side frame 85 that restricts the movement of the second lock member 50 toward the + Z side is separated from the hook portion 51, the biasing force of the second biasing member 72 The second lock member 50 moves to the + Z side.

  When the second lock member 50 moves to the + Z side, the first pin 53 and the second pin 54 are respectively moved while the sliding portion 56 of the movable portion 52 slides with the contact portion 44 of the first lock member 40. It moves to the + Z side along the first guide part 62 and the second guide part 63. Further, as the second lock member 50 moves to the + Z side, the first lock member 40 whose movement is restricted by the second lock member 50 is moved in the sub-scanning direction Y by the urging force of the first urging member 71. Move to the + Y side. At this time, the first lock member 40 moves while the contact portion 44 slides with the sliding portion 56 of the second lock member 50 so as to sink into the movable portion 52 of the second lock member 50. Therefore, the first lock member 40 assists the movement of the second lock member 50 toward the + Z side.

  Then, the main body portion 12 and the image reading device 13 are locked by the hook portion 41 that moves to the + Z side together with the moving portion 42 being engaged with the engaging portion 84 of the main body portion side frame 83. In other words, the lock mechanism 30 locks the image reading device 13 so that the image reading device 13 does not open when the automatic feeding device 14 is opened with respect to the image reading device 13. Further, the second lock member 50 at this time is not locked so that the cutout portion 55 of the first pin 53 is in surface contact with the upper edge of the first guide portion 62 and does not lock the image reading device 13 and the automatic feeding device 14. Located in position.

  When the opened automatic feeder 14 is closed, the guide portion 87 of the automatic feeder-side frame 85 comes into contact with the hook portion 51 of the second lock member 50 so that the second lock member 50 slides. When the second lock member 50 returns to the original position so that the moving part 56 pushes out the contact part 44 of the first lock member 40, the first lock member 40 moves to the unlocked position. That is, the first lock member 40 is displaced between the locked position and the unlocked position by moving in the sub-scanning direction Y intersecting with the vertical direction Z, and is movable between both positions. In summary, when one of the image reading device 13 and the automatic feeding device 14 is open, the lock mechanism 30 locks the other. Further, the first lock member 40 and the second lock member 50 constituting the lock mechanism 30 are configured to be interlocked with each other so that when one is located at the lock position, the other is located at the non-lock position. .

According to the above embodiment, the following effects can be obtained.
(1) Since the first pin 53 and the second pin 54 are independently engaged with the first guide portion 62 and the second guide portion 63, respectively, for example, one guide in which the first pin 53 and the second pin 54 are common. The length of the guide portion can be shortened as compared with the configuration that engages with the portion. By reducing the length of the guide portion, the degree of freedom in design of the lock mechanism 30 is improved, which can contribute to downsizing of the lock mechanism 30. Therefore, the enlargement of the lock mechanism 30 can be suppressed.

  (2) The first guide part 62 and the second guide part 63 are provided in such a manner that a part of the first guide part 62 and the second guide part 63 overlap in the sub-scanning direction Y in which the first lock member 40 moves, thereby intersecting the vertical direction Z. Since the area occupied by the first guide portion 62 and the second guide portion 63 in the sub-scanning direction Y in which the first lock member 40 moves is small, an increase in the size of the lock mechanism 30 can be suppressed.

  (3) The first guide portion 62 and the second guide portion 63 are provided in such a manner that a part of the first guide portion 62 and the second guide portion 63 overlap each other in the vertical direction Z. Since the area occupied becomes small, the enlargement of the lock mechanism 30 can be suppressed.

  (4) Since the second lock member 50 can be rotated around the first pin 53 by the allowance portion 68 provided in the lower portion of the second guide portion 63, the first pin 53 in the first guide portion 62. Regardless of the position, the second locking member 50 is allowed to rotate based on the position of the second pin 54 in the second guide portion 63. That is, the lock mechanism 30 can be simplified in comparison with a configuration that allows the second locking member 50 to rotate based on the positions of both the first pin 53 and the second pin 54.

  (5) Since the notch portion 55 provided in the first pin 53 can be brought into surface contact with the upper edge of the first guide portion 62, the notch portion 55 of the first pin 53 is in contact with the upper edge of the first guide portion 62. In the case of contact, the posture of the second lock member 50 can be kept constant.

In addition, you may change the said embodiment as follows. Further, the following modifications may be combined as appropriate.
-The 1st pin 53 may be the structure in which the notch part 55 is not provided similarly to the 2nd pin 54. FIG. Further, the upper edge of the first guide portion 62 may be provided in an arc shape like the lower edge.

The first pin 53 and the second pin 54 are not limited to a cylindrical shape, and may have a shape such as a square note or a triangular prism, or other shapes.
-The 1st opening / closing body and the 2nd opening / closing body with which the printing apparatus 11 is provided may be comprised as a mere cover member, for example.

-The lock mechanism 30 is not limited to one, and a plurality of lock mechanisms 30 may be provided. The lock strength can be improved by providing a plurality.
The guide member 60 may be configured to be integrated with the image reading device side frame 81 of the image reading device 13.

-The 1st guide part 62 and the 2nd guide part 63 are good also as a structure provided not only as a structure provided through the plate-shaped part 61 but as a groove | channel of a concave strip, for example.
The second lock member 50 may be configured to rotate around the second pin 54, for example. Further, the second pin 54 may be provided with a notch 55.

The printing unit 21 is not limited to a serial head type that is movable in the scanning direction X, but may be a so-called line head type that is long in the scanning direction X.
The medium may be not only paper but also film or fabric.

  The printing apparatus 11 includes fluids other than ink (including liquids, liquid materials in which particles of functional materials are dispersed or mixed in the liquid, fluids such as gels, and solids that can be ejected as fluids) May be a fluid ejecting apparatus that performs printing by ejecting or ejecting the ink. For example, printing is performed by ejecting a liquid material containing a material such as an electrode material or a color material (pixel material) used for manufacturing a liquid crystal display, an EL (electroluminescence) display, and a surface emitting display in a dispersed or dissolved state. A liquid ejecting apparatus may be used. Also, a fluid injection device for injecting a fluid such as a gel (eg, physical gel), a powder injection device (eg, a toner jet type) for injecting a solid such as powder (particles) such as toner Recording device). The present invention can be applied to any one of these fluid ejecting apparatuses. In the present specification, the term “fluid” is a concept that does not include a fluid consisting only of gas. Examples of the fluid include liquid (inorganic solvent, organic solvent, solution, liquid resin, liquid metal (metal melt), etc. ), Liquids, fluids, powders (including granules and powders), and the like.

  DESCRIPTION OF SYMBOLS 11 ... Printing apparatus, 12 ... Main-body part, 13 ... Image reading apparatus (1st opening / closing body), 14 ... Automatic feeding apparatus (2nd opening / closing body), 21 ... Printing part, 40 ... 1st locking member, 42 ... Movement , 43 ... mounting part, 44 ... contact part, 50 ... second lock member, 51 ... hook part, 52 ... movable part, 53 ... first pin, 54 ... second pin, 55 ... notch part, 56 ... sliding , 58 ... pedestal part, 60 ... guide member, 61 ... plate-like part, 62 ... first guide part, 63 ... second guide part, 66 ... fixing part, 67 ... retaining part, 68 ... allowance part, 71 ... first One biasing member, 72... Second biasing member, 81... Image reading apparatus side frame, X... Scanning direction, Y .. sub-scanning direction, Z.

Claims (5)

A printing section for printing on a medium;
A main body for accommodating the printing unit;
A first opening / closing body provided to be openable / closable with respect to the main body portion;
A second opening / closing body provided to be openable / closable with respect to the first opening / closing body;
A lock mechanism that locks so that the other does not open when one of the first opening and closing bodies and the second opening and closing body is open,
The locking mechanism is
A first locking member that is movable between a lock position that locks the main body and the first opening and closing body, and an unlocking position that does not lock;
A second locking member that is movable between a locking position that locks the first opening and closing body and the second opening and closing body, and a non-locking position that does not lock;
A guide member for guiding the movement of the second lock member,
The first locking member and the second locking member are interlocked with each other so that when one is positioned at the locked position, the other is positioned at the unlocked position,
The first lock member is displaced between a locked position and an unlocked position by moving in a direction intersecting with the vertical direction,
The second lock member is displaced between a locked position and an unlocked position by rotating,
The printing apparatus according to claim 1, wherein the guide member is provided with a first guide portion and a second guide portion to which the first pin and the second pin of the second lock member are engaged independently.   The printing apparatus according to claim 1, wherein the first guide portion and the second guide portion are provided so that a part of the first guide portion and the second guide portion overlap in a direction in which the first lock member moves.   The printing apparatus according to claim 1, wherein the first guide portion and the second guide portion are provided such that a part of the first guide portion and the second guide portion overlap in the vertical direction. The first guide part and the second guide part have a portion extending along the vertical direction,
The lower portion of the second guide portion is provided with an allowance portion that allows the second pin to move so that the second lock member can rotate about the first pin. The printing apparatus according to claim 1, wherein the printing apparatus is a printing apparatus. The first pin has a non-arc-shaped cutout at an upper end portion thereof,
5. The printing apparatus according to claim 1, wherein the cutout portion is in surface contact with an upper edge of the first guide portion.

Images