JP2012056244A - Cover opening/closing structure and carrier device equipped with this cover opening/closing structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cover opening/closing structure which can inhibit closing of a cover member during the state of opening of the covered member even when the moving locus of the cover member and the moving locus of the covered member do not cross, and a carrier device equipped with the cover opening/closing structure.SOLUTION: The carrier device 22 comprises a cover 46 which is provided possible to displace between the opening state and the closing state of the device body, a second guide 42 which is provided possible to displace between the opening state and closing state at a position covered with the cover inside the device body, and a lever guide 52 which is provided possible to displace between an inhibiting position state to restrict displacement of the cover from the opening state to the closing state and a permission position state which permits displacement from the opening state of the cover to the closing state of the cover in its intersection with the moving paths of the cover and the second guide. The lever guide becomes the permission position state when the second guide is in the closing state interlocked with the displacement of the second guide while the second guide becomes the restriction position state when the second guide is in the open state.

Description

  The present invention relates to a cover opening / closing structure and a transport device including the cover opening / closing structure.

  2. Description of the Related Art Conventionally, a recording apparatus that performs recording on a recording medium can be opened and closed inside the apparatus main body in order to perform internal maintenance in the recording apparatus, such as clearing a recording medium jam (so-called jam) and replacing consumables. There is known one having an inner cover member (cover member). Then, after opening the openable and closable outer cover member (cover member) provided in the apparatus main body, the inner maintenance is performed by opening the inner cover member.

  In such a recording apparatus, there is a possibility that malfunction may occur by closing the outer cover member in a state where the inner cover member is forgotten to be closed. Therefore, for example, a cover opening / closing structure described in Patent Document 1 has been proposed. That is, in the cover opening / closing structure of the recording apparatus disclosed in Patent Document 1, the rib portion is provided inside the outer cover member in the apparatus main body, and the protrusion is provided on the inner cover member. Then, when the outer cover member is to be closed with the inner cover member open, the rib portion of the outer cover member abuts against the protrusion of the inner cover member, so that the outer cover member is opened with the inner cover member open. It is designed to suppress closing.

JP 2007-50527 A

  Incidentally, as in the cover opening / closing structure described in Patent Document 1, in order to prevent the outer cover member from closing due to the inner cover member coming into contact with the outer cover member, the movement path (movement locus) of the inner cover member And the movement path of the outer cover member need to intersect. Therefore, when the movement path of the outer cover member and the movement path of the inner cover member do not intersect, there is a problem that it is not possible to prevent the outer cover member from being closed while the inner cover member is open. .

  The present invention has been made in view of the above problems, and an object of the present invention is to cover the cover member in a state where the covering member is open even when the movement locus of the cover member and the movement locus of the covering member do not intersect. An object of the present invention is to provide a cover opening / closing structure capable of suppressing the closing of the cover, and a transport device provided with the cover opening / closing structure.

  In order to achieve the above object, a cover opening / closing structure according to the present invention includes a cover member provided on an apparatus main body so as to be displaceable between an open state and a closed state, an inner side of the apparatus main body, and the cover member. The cover member is disposed at a position to be covered so as to be displaceable between an open state and a closed state, and the cover member is moved from the open state to the closed state at a position intersecting the movement locus of the cover member and the movement locus of the covering member. A restricting member provided to be displaceable between a permissible position state that permits displacement of the cover member and a restrictive position state that restricts displacement of the cover member from the open state to the closed state. In conjunction with the displacement of the covering member, when the covering member is in the closed state, it is in the allowable position state, and when the covering member is in the open state, it is in the restricted position state.

  According to this configuration, when the covering member is in the closed state, the cover member is allowed to be closed by the restriction member, and thus the cover member can be closed. On the other hand, when the covering member is in the open state, the restriction member restricts the cover member from being closed, and thus the cover member cannot be closed. Therefore, even when the movement locus of the cover member and the movement locus of the covering member do not intersect, it is possible to suppress the cover member from being closed while the covering member is open.

  The cover opening / closing structure of the present invention is in a detection state when the cover member is in an open state, while in a detection state when the cover member is in a closed state, the detection member that is in a non-detection state, the cover member and the restriction A closed state that is disposed between the members and on the movement locus of the cover member, and in conjunction with the displacement of the cover member, when the cover member is in the closed state, the detection means is in a non-detection state. A displacement member displaceable to an open position when the cover member is in an open state while the cover member is in an open state, the displacement member being in the open state, the displacement member being the restriction member Is in the restricted position state, the displacement of the open state position to the closed state position is restricted by the restricting member.

  According to this configuration, when the covering member is in the open state, the displacement member is maintained at the open state position where the detection means for detecting the open state of the cover member is in the detection state. Therefore, it can be detected by the detection means which detects the open state of a cover member that a coating | coated member is in an open state. Therefore, it is possible to recognize the state in which the covering member is opened without newly increasing the number of detection means.

  In the cover opening / closing structure of the present invention, the covering member is displaced from the closed state to the open state by rotating downward in the direction of gravity about one axis, and when the covering member is in the closed state. By engaging the engaging portion provided in the restricting member from below, the restricting member is pressed and supported upward in the direction of gravity, while the engagement of the restricting member when in the open state. Release the engagement with the joint.

  According to this configuration, when the covering member is displaced from the closed state to the open state, the support by the covering member is released and the restricting member moves downward due to gravity. Therefore, the displacement of the cover member to the closed state is restricted. It is easily displaced to the restricted position state and can be maintained. Therefore, the regulating member that is displaced in conjunction with the displacement of the covering member can be easily configured.

  In the cover opening and closing structure of the present invention, the cover member is displaced from the closed state to the open state by rotating upward in the direction of gravity about one axis, and when the cover member is in the closed state. While in contact with the contact portion provided on the displacement member, the contact of the displacement member with the contact portion is released when the displacement member is in an open state.

  According to this configuration, when the cover member is displaced from the open state to the closed state, the displacement member moves from the open state position where the detection means is in the detection state to the non-detection state due to the weight of the cover member. Can be displaced. Therefore, the displacement member that is displaced in conjunction with the displacement of the cover member can be easily configured.

  In order to achieve the above object, a transport apparatus according to the present invention is a transport apparatus having a cover opening / closing structure having the above-described configuration, wherein the covering member transports a recording medium from an upstream side to a downstream side. It is a conveyance path | route formation member which forms a part of.

  According to this structure, the same effect as the said cover opening / closing structure can be acquired.

FIG. 2 is a schematic side view of the printer according to the present embodiment. FIG. 3 is a schematic cross-sectional view of a conveyance device provided in the printer. (A) is a partial perspective view showing the state of the lever and lever guide when both the cover and the second guide are in the closed state, and (b) is the lever and lever guide when both the cover and the second guide are in the open state. The fragmentary perspective view which shows the state of. The schematic sectional drawing of a conveying apparatus in case a cover is in an open state and a 2nd guide is in a closed state. The schematic sectional drawing of a conveying apparatus in case a cover and a 2nd guide are both in an open state. The schematic sectional drawing of the conveying apparatus when a cover is displaced to a closed state in the state which has a 2nd guide in an open state.

  Hereinafter, an embodiment in which the present invention is embodied in an ink jet printer (hereinafter, also referred to as “printer”) which is a kind of recording apparatus and a transport device provided in the printer will be described with reference to FIGS. In the following description, when referring to “left and right direction”, “up and down direction” and “front and back direction”, unless otherwise specified, “left and right direction”, “up and down direction” and “ It means “front-rear direction”. In this case, the “left-right direction” corresponds to the width direction intersecting the recording medium conveyance direction, the “up-down direction” corresponds to the vertical direction, and the “front-rear direction” refers to the direction from the front side to the rear side. This corresponds to the conveyance direction of the recording medium.

  As shown in FIG. 1, the printer 11 includes a main body case 12 having a substantially rectangular parallelepiped shape. In the main body case 12, a feeding unit 13 that feeds the continuous paper S having a long shape and a recording unit 14 that records the continuous paper S fed from the feeding unit 13 are provided. That is, in the main body case 12, the feeding unit 13 is disposed at a position closer to the front side on the upstream side in the conveyance direction of the continuous paper S, and the recording unit is positioned at a position from the rear side substantially downstream from the center. 14 is disposed.

  As shown in FIG. 1, a winding shaft 15 extending in the width direction (left-right direction) orthogonal to the transport direction of the continuous paper S is rotatably provided in the feeding unit 13. The winding shaft 15 is provided so as to be integrally rotatable with the winding shaft 15 in a state in which the continuous paper S is previously wound in a roll shape. That is, the continuous paper S is fed from the winding shaft 15 by the rotation of the winding shaft 15 and conveyed toward the downstream side (rear side) in the conveyance direction.

  Further, a relay roller 16 extending in the width direction (left-right direction) of the continuous paper S in a manner parallel to the winding shaft 15 is rotatably disposed in the feeding portion 13 at a position above the winding shaft 15 in the vertical direction. Yes. Then, by winding the continuous paper S fed from the winding shaft 15 onto the relay roller 16 from the lower front side, the continuous paper S is transported horizontally toward the downstream side (rear side) in the transport direction. Yes.

  The recording unit 14 is provided with a rectangular plate-like support member 17 that can support the continuous paper S to be transported at a position downstream of the relay roller 16 in the transport direction (rear side). The support surface 17 a that is the upper surface of the support member 17 is arranged to have the same height as the top of the outer peripheral surface of the relay roller 16. Therefore, the continuous paper S whose transport direction has been changed to the horizontal direction by the relay roller 16 is transported to the rear side, which is downstream in the transport direction, while sliding on the support surface 17 a of the support member 17.

  Further, a carriage that can be reciprocated in the main scanning direction intersecting the transport direction of the continuous paper S by a driving means (not shown) at a position above the support member 17 and facing the support surface 17a of the support member 17. 18 is provided. A recording head 19 as an example of a recording unit is supported on the lower surface of the carriage 18, and a horizontal surface in which a plurality of nozzles (not shown) for ejecting ink are opened on the lower surface of the recording head 19. It is the nozzle forming surface. The recording head 19 performs recording by ejecting ink onto the continuous paper S that is transported to the downstream side (rear side) in the transport direction while sliding on the support surface 17 a of the support member 17. It has become.

  In addition, a cutter 20 capable of cutting the continuous paper S in the width direction (left and right direction) intersecting the transport direction is located at the downstream side (rear side) in the transport direction from the recording position where the recording head 19 is disposed. Has been placed. The cutter 20 cuts the long continuous paper S into cut paper CS having a predetermined length along the transport direction. Then, after the continuous paper S is cut into a cut paper CS having a predetermined length by the cutter 20, the continuous paper S is conveyed to the downstream side (rear side) in the conveyance direction one by one every time it is cut.

  A roller pair 21 composed of a driving roller and a driven roller is disposed at a position downstream (rear side) in the transport direction from the cutter 20. This pair of rollers 21 is in a state where the cut sheet CS is sandwiched between the drive roller and the driven roller, and the driven roller moves as the cut sheet CS moves to the downstream side (rear side) in the transport direction based on the drive rotation of the drive roller. By being driven to rotate, the cut paper CS is sandwiched between the two rollers and conveyed downstream in the conveyance direction (rear side).

  Further, a conveyance port (not shown) for conveying the cut sheet CS from the inside of the main body case 12 to the outside of the main body case 12 on the side wall of the main body case 12 at a position downstream of the roller pair 21 (rear side) in the conveying direction. ) Is formed. Then, the cut sheet CS conveyed through the conveyance port from the inside of the main body case 12 is discharged out of the main body case 12 on the upper outer surface of the rear side wall 12a in the main body case 12 in which such a conveyance port is formed. For this purpose, a conveying device 22 for conveying is provided. As for this conveyance apparatus 22, the whole apparatus of a unit structure can be attached or detached with respect to the main body case 12. FIG.

Next, the transport device 22 will be described with reference to FIG.
As shown in FIG. 2, the transport device 22 includes a case 31 that is hollow inside (an example of a device main body).

  Below the front side wall 31 a in the case 31, an opening 32 is formed for carrying the cut paper CS conveyed from the main body case 12 side through the roller pair 21 into the case 31. A discharge port 33 for discharging the cut sheet CS from the inside of the case 31 to the outside of the case 31 is formed above the front side wall 31a of the case 31 (that is, vertically above the carry-in port 32). Inside the case 31 is provided a transport path TR for transporting the cut sheet CS carried from the carry-in port 32 to the discharge port 33 while inverting it. The transport path TR is curved so as to swell toward the rear side when viewed from the front-rear direction.

  The transport path TR includes first to third transport roller pairs 34 to 36 that apply transport force to the cut sheet CS transported along the transport path TR between the transport inlet 32 and the discharge port 33. Arranged in order from the upstream side to the downstream side (the lower side to the upper side in FIG. 2) along the TR. Specifically, the first transport roller pair 34 is disposed at the position of the upstream end of the transport path TR (that is, the left side of the transport inlet 32). The third transport roller pair 36 is disposed at the position of the downstream end of the transport path TR (that is, the left side of the discharge port 33). Further, the second transport roller pair 35 is located at substantially the center of the transport path TR (that is, between the first and third transport roller pairs 34, 36 on the left side of the first and third transport roller pairs 34, 36). Placed in position.

  The first to third transport roller pairs 34 to 36 are respectively driven rollers 34a to 36a that are rotationally driven by a transport motor (not shown), and driven rollers that sandwich the cut sheet CS between the drive rollers 34a to 36a. 34b-36b. The respective driven rollers 34b to 36b that are paired with the drive rollers 34a to 36a are arranged at positions facing each other across the transport path TR. And the 1st-3rd conveyance roller pair 34-36 is each driving roller 34a in the state which pinched the cut paper CS with each other driven roller 34b-36b which is paired with each driving roller 34a-36a. Each of the paired driven rollers 34b to 36b, which are paired with the driving rotation of .about.36a, is driven to rotate to carry the cut sheet CS.

  A substantially rectangular plate that guides the cut sheet CS to the first transport roller pair 34 through the transport port of the main body case 12 and the transport port 32 of the case 31 at a position between the transport port 32 and the first transport roller pair 34. An introductory guide 37 is provided. The introduction guide 37 is fixed to the case 31 and is inclined from the bottom surface 31b of the case 31 upward to the rear side (in other words, ascending toward the downstream side in the transport direction).

  Further, at a position between the first to third transport roller pairs 34 to 36, the cut paper CS fed from the transport roller pair disposed on the upstream side is guided to the roller pair disposed on the downstream side. 1 and 2nd conveyance guides 38 and 39 are provided, respectively.

  The first conveyance guide 38 provided at a position between the first conveyance roller pair 34 and the second conveyance roller pair 35 includes plate-shaped first to third guides 41 to 43 having a substantially arc shape in cross section. Yes. The first and second guides 41 and 42 are arranged adjacent to each other in order from the upstream side to the downstream side along the transport path TR at a position on the rear side of the transport path TR. Further, the third guide 43 is disposed at a front position across the first and second guides 41 and 42 and the transport path TR. That is, the third guide 43 is positioned at the inner peripheral side of the first and second guides 41 and 42 and the inner peripheral surface (front side surface in FIG. 2) of the first and second guides 41 and 42. The third guide 43 is disposed so that the outer peripheral surface (the rear side surface in FIG. 2) faces each other with a gap therebetween.

  The second transport guide 39 provided at the position of the second transport roller pair 35 and the third transport roller pair 36 includes plate-like fourth and fifth guides 44 and 45 having a substantially arc shape in cross section. The fourth guide 44 is disposed at a position on the rear side of the transport path TR, and the fifth guide 45 is disposed at a position on the front side across the fourth guide 44 and the transport path TR. In other words, the fifth guide 45 is located at a position on the inner peripheral side of the fourth guide 44 with a space between the fifth guide 45 and the inner peripheral side surface (the front side surface in FIG. 2). The five guides 45 are arranged so that the outer peripheral surfaces (rear side surfaces in FIG. 2) face each other. Thus, the transport path TR is formed by the introduction guide 37 and the first to fifth guides 41 to 45. That is, the first to fifth guides 41 to 45 function as transport path forming members. Then, the cut sheet CS carried into the case 31 from the carry-in entrance 32 is conveyed from the upstream side to the downstream side (that is, from the lower side to the upper side in FIG. 2) and then recorded. The discharged surface 33 is discharged from the discharge port 33 toward the upper surface 12b of the main body case 12 with the surface facing downward.

  Further, in the case 31 of the transport device 22 configured as described above, for example, when a paper jam (so-called jam) of the cut paper CS being transported occurs in the transport path TR, maintenance work in the transport device 22 is performed. A cover 46 that can be opened and closed is provided.

  As shown in FIG. 2, the cover 46 has an upper surface 46 a and a rear side surface 46 b that are flush with the upper surface 31 c (see FIG. 4) and the rear side wall 31 d of the case 31. The cover 46 has an opening 47 (see FIG. 4) formed so as to include both the upper surface 31c and the rear side wall 31d in the substantially central portion of the upper surface 31c of the case 31 and the upper substantially central portion of the rear side wall 31d. It is arranged so that it can be covered. In addition, a rotation shaft 46c is provided on the front end side of the upper surface 46a of the cover 46, and the cover 46 is rotatably supported with respect to the case 31 via the rotation shaft 46c. The cover 46 has a closed position (the position state shown in FIG. 2) that closes the opening 47 of the case 31 and an open position (see FIG. 4) that opens the opening 47. It is designed to be able to rotate and displace between.

  In addition, an inner wall 46d is formed at a position near the rear side of the upper surface 46a of the cover 46 so as to protrude downward in the direction of gravity so as to be parallel to the rear side surface 46b. Furthermore, a rectangular opening 46e into which a fingertip can be inserted is provided below the rear side surface 46b of the cover 46. That is, the opening 46e serves as a handle for the user to insert the fingertip and rotate the cover 46. Then, by rotating the cover 46 upward in the gravity direction from the closed position and displacing the cover 46 to the open position, the opening 47 is exposed to the upper surface 31c and the rear side wall 31d side of the case 31, and the opening 47 is interposed through the opening 47. Thus, maintenance in the transfer device 22 can be performed.

  Of the first to fifth guides 41 to 45 that form the transport path TR disposed in the case 31 of the transport device 22, the second guide 42 is, for example, jammed cut paper CS in the transport path TR. When it occurs, it can be opened and closed to open the transport path TR.

  As shown in FIG. 2, a rotary shaft 42a is provided at the upstream end of the second guide 42 in the transport direction, and the second guide 42 rotates with respect to the case 31 via the rotary shaft 42a. It is supported freely. The second guide 42 is between the closed position (the position state shown in FIG. 2) that closes the transport path TR and the open position (see FIG. 5) that opens the transport path TR. It can be rotated with. In this respect, the second guide 42 is a covering member provided inside the case 31 (device main body) and covered with the cover 46 (cover member) so as to be displaceable between the open state and the closed state. Function.

  Further, a flat engagement surface portion 42b is formed to project toward the rear side in the horizontal direction with respect to the second guide 42 at the end of the second guide 42 on the downstream side in the transport direction. Further, at the rear end of the engaging surface portion 42b, a plurality of plate-shaped handle portions 42c are vertically spaced from the engaging surface portion 42b in the vertical direction with a predetermined interval along the left-right direction of the engaging surface portion 42b. And is formed to protrude. The user can turn the second guide 42 between the closed position and the open position by hooking the fingertip on the handle portion 42c.

  For example, when the paper jam of the cut paper CS occurs in the transport path TR, the cover 46 of the transport device 22 is rotationally displaced to the open position. Thereafter, by rotating the second guide 42 in the transport device 22 downward in the direction of gravity and displacing it to the open position, it is possible to open the transport path TR and pull out the jammed cut paper CS from the transport path TR. It can be done.

As shown in FIG. 2, a lever 51 and a lever guide 52 are provided in the case 31 at a position between the cover 46 and the second guide 42.
As shown in FIG. 2 and FIG. 3, the lever 51 has a rotating shaft 51a fixed to a bent portion bent at an obtuse angle at a substantially center, and rotates to the right side wall 31e of the case 31 via the rotating shaft 51a. It is supported freely. At the lower end of the lever 51, a flat contact portion 51b is formed so as to protrude toward the left side (that is, the left side in the horizontal direction with respect to the lever 51). As shown in FIG. 2, the front side surface of the inner wall 46d of the cover 46 located at the closed position is in contact with the contact portion 51b from the rear side.

  Further, the other end of the tension spring 53 whose one end is fixed to the right side wall 31 e of the case 31 is hooked at a position between the rotation shaft 51 a of the lever 51 and the contact portion 51 b. The lever 51 is always biased by the tension spring 53 so as to rotate clockwise as viewed from the left side in FIGS.

  Therefore, when the inner wall 46d of the cover 46 and the contact portion 51b of the lever 51 are in contact with each other due to the cover 46 being in the closed position, the lever 51 has overcome the biasing force of the tension spring 53. It is pressed in the counterclockwise direction (forward direction) in FIG. 2 by the weight. On the other hand, when the contact between the inner wall 46d of the cover 46 and the contact portion 51b of the lever 51 is released by the displacement of the cover 46 from the closed position to the open position (see FIG. 4), the biasing force of the tension spring 53 causes The lever 51 is configured to rotate clockwise from the position shown in FIGS. 2 and 3A when viewed from the left side of the drawing (see FIG. 4). That is, the lever 51 is arranged on the movement locus of the cover 46 and functions as a displacement member that rotates in conjunction with the displacement of the cover 46.

  Further, as shown in FIGS. 2 and 3, a sensor 54 is provided above the lever 51. As shown in FIG. 3, the sensor 54 is an optical sensor electrically connected to a control device (not shown), and has a light projecting unit 54a arranged on the right side and a light receiving unit 54b arranged on the left side. is doing. The sensor 54 enters a detection state when the light emitting unit 54a receives the light emitted toward the left side by the light receiving unit 54b.

  When the cover 46 is in the closed position, the upper end of the lever 51 is positioned between the light projecting portion 54a and the light receiving portion 54b of the sensor 54 as shown in FIG. The light emitted from the light portion 54a is blocked by the lever 51, and the sensor 54 is in a non-detection state. That is, when the cover 46 is in the closed state, the lever 51 is displaced to a position where the sensor 54 is not detected, that is, a position in the closed state. On the other hand, when the cover 46 is located at the open position, the upper end of the lever 51 is located on the front side of the sensor 54 as shown in FIG. The light is received by the light receiving unit 54b without being blocked by the sensor 54, and the sensor 54 enters a detection state. When the cover 46 is in the open state, the lever 51 is displaced to a position where the sensor 54 is in a detection state, that is, a position in the open state. The sensor 54 functions as detection means for detecting the open state of the cover 46, and detects whether the lever 51 as the displacement member is in the open position or the closed position of the cover 46. It also functions as a means.

  As shown in FIG. 2, the lever guide 52 has a plate shape formed in an L shape in side view, and a rotating shaft 52 b is fixed to the front end side of a base portion 52 a that extends horizontally in the front-rear direction. The lever guide 52 is rotatably provided on the right side wall 31e of the case 31 via the rotation shaft 52b. In addition, a restricting portion 52d that is inclined upward toward the rear side is formed on the upper end side of the vertical portion 52c that extends upward in the vertical direction from the rear end side of the base portion 52a.

  As shown in FIG. 2 and FIG. 3A, a flat engaging portion is provided at a substantially central position of the vertical portion 52c from the rear end toward the left side (that is, the left side in the horizontal direction with respect to the lever guide 52). 52e is protrudingly formed. And the engaging surface part 42b of the 2nd guide 42 located in the obstruction | occlusion position engages with this engaging part 52e from the lower side.

  Further, the bent portion of the lever guide 52 is hooked with the other end of a tension spring 55 whose one end is fixed to the right side wall 31 e of the case 31. The lever guide 52 is always urged by the tension spring 55 so as to rotate counterclockwise as viewed from the left side in FIGS.

  Therefore, when the engagement surface portion 42b of the second guide 42 and the engagement portion 52e of the lever guide 52 are engaged because the second guide 42 is located at the closed position, the lever guide 52 is 42, the position is pressed clockwise (upward) when viewed from the left side in FIG. 2 and FIG. That is, in this case, the lever guide 52 is in an allowable position state that allows the cover 46 in the open state to be displaced to the closed state.

  On the other hand, when the engagement between the engagement surface portion 42b of the second guide 42 and the engagement portion 52e of the lever guide 52 is released by the displacement of the second guide 42 from the closed position to the open position (see FIG. 5), The lever guide 52 rotates in the counterclockwise direction when viewed from the left side in FIG. 2 and FIG. Then, as shown in FIG. 3B, the lever guide 52 is displaced from the allowable position state to the restricted position state, that is, the position state that restricts the displacement of the cover 46 in the open state to the closed state. It has become. As described above, the lever guide 52 is arranged at a position intersecting the movement locus of the second guide 42 and is rotated in conjunction with the displacement of the second guide 42.

  As shown in FIG. 3B, the upper end of the restricting portion 52d of the lever guide 52 displaced to the restricting position state comes into contact with the abutting portion 51b of the lever 51 in the open position from the front side. It has become. The lever guide 52 in the restricting position state restricts the lever 51 from rotating in the clockwise direction when viewed from the left side in FIG. 3B from the open state position. That is, the lever guide 52 is disposed at a position that intersects with the movement locus of the second guide 42 and also intersects with the movement locus of the cover 46. As described above, in the present embodiment, the cover opening / closing structure is configured by the second guide 42, the cover 46, the lever 51, and the lever guide 52.

  Next, the operation of the transport device 22 in the printer 11 configured as described above will be described with reference to FIGS. 4 to 6, particularly focusing on the relationship among the cover 46, the second guide 42, the lever 51, and the lever guide 52. In general, it is assumed that the cover 46 and the second guide 42 are both in the closed position.

  Now, for example, when a paper jam occurs in the transport path TR of the transport device 22, as shown in FIG. 4, the user first covers the cover 46 provided on the case 31 in the direction of the solid arrow A in order to confirm the transport path TR. The opening 47 is opened by rotating in the gravity direction (upward) and displacing the cover 46 from the closed position (closed state) to the open position (open state). Then, the lever 51 is released from being pressed by the cover 46, so that the lever 51 is rotated in the direction indicated by the solid line arrow B from the closed position indicated by the two-dot chain line, and is displaced to the open position. Becomes a detection state in which the open state of the cover 46 is detected from the non-detection state.

  Next, as shown in FIG. 5, the second guide 42 is rotated in the direction of the solid arrow C (downward in the direction of gravity) to move the second guide 42 from the closed position (closed state) to the open position (open state). The transport path TR is opened by displacing to. Then, when the lever guide 52 is released from being pressed by the second guide 42, the lever guide 52 is rotated from the allowable position state indicated by the two-dot chain line in the direction indicated by the solid line arrow D and displaced to the restricted position state. The part 52 d comes into contact with the contact part 51 b of the lever 51. Then, the user confirms the released transport path TR and performs maintenance such as removing the jammed paper as necessary.

  When the confirmation or maintenance of the transport path TR is completed, the user closes the transport path TR by rotating the second guide 42 located at the open position and displacing it to the closed position. Thereafter, the cover 46 located at the open position is rotated and displaced to the closed position. At this time, when the second guide 42 is properly positioned at the closed position, the lever guide 52 is pressed from below by the second guide 42 and is in an allowable position state that allows the cover 46 to be displaced to the closed state. . As shown in FIG. 4, since the restricting portion 52d of the lever guide 52 in the allowable position state and the contact portion 51b of the lever 51 in the closed state are not in contact, the lever 51 is pressed from behind by the cover 46. Therefore, it can be displaced to the closed position. Therefore, since the cover 46 can be displaced to the closed position, the opening 47 can be properly closed by the cover 46. That is, the lever guide 52 allows the cover 46 to be closed when the second guide 42 is closed. At this time, the sensor 54 is in a non-detected state where the open state of the cover 46 is not detected, in other words, a state where the closed state of the cover 46 is detected.

  On the other hand, when the second guide 42 is located at the open position, the lever guide 52 is in the restricted position state. As shown in FIG. 5, since the restricting portion 52d of the lever guide 52 in the restricted position state and the abutting portion 51b of the lever 51 in the opened state are in contact, the lever 51 is moved from the open state position. Displacement to the closed position is restricted by the lever guide 52. Therefore, as shown in FIG. 6, the lever 51 cannot be displaced even when pressed by the cover 46 from behind. Therefore, since the cover 46 cannot be displaced to the closed position, the opening 47 is not closed by the cover 46 but is opened. That is, the lever guide 52 restricts the cover 46 from being closed when the second guide 42 is in the open state. In these respects, the lever guide 52 functions as a restricting member that restricts the displacement of the cover 46 from the open state to the closed state when the second guide 42 is in the open state. At this time, the sensor 54 remains in the detection state in which the open state of the cover 46 is detected.

According to the above embodiment, the following effects can be obtained.
(1) When the second guide 42 is in the closed state, the cover 46 is allowed to be closed by the lever guide 52, so that the cover 46 can be closed. On the other hand, when the second guide 42 is in the open state, the cover 46 cannot be closed because the lever guide 52 restricts the cover 46 from being closed. Therefore, even when the movement locus of the cover 46 and the movement locus of the second guide 42 do not intersect, it is possible to prevent the cover 46 from being closed while the second guide 42 is open.

  (2) When the second guide 42 is in the open state, the lever 51 is maintained at the open state position where the sensor 54 that detects the open state of the cover 46 is in the detection state. Therefore, it can be detected by the sensor 54 that detects the open state of the cover 46 that the second guide 42 is in the open state. Therefore, it is possible to recognize the state in which the second guide 42 is opened without newly increasing the detection means.

  (3) When the cover 46 is displaced from the open state to the closed state, the lever 51 is displaced by the weight of the cover 46 from the open state position where the sensor 54 is in the detection state to the closed state position where the sensor 54 is in the non-detection state. be able to. Therefore, the lever 51 that is displaced in conjunction with the displacement of the cover 46 can be easily configured.

In addition, you may change the said embodiment as follows.
The recording medium is not limited to continuous paper or cut paper CS, but may be, for example, continuous film, cut film, or long cloth. Further, the recording medium is not limited to the one cut into the cut sheet CS having a predetermined size in the middle of conveyance, and may be formed into a single sheet state having a predetermined size from the beginning.

The transport device 22 is not limited to a removable device, and may be integrally formed with the main body case 12.
The sensor 54 is not limited to an optical sensor, and can be changed to any type of sensor such as a contact sensor.

  The lever guide 52 may not be urged counterclockwise in FIG. 2 by the tension spring 55. In such a case, the second guide 42 is displaced from the closed state to the open state, so that the lever guide 52 is released from the support by the second guide 42 and moves downward due to gravity. It is possible to easily displace to the restricted position state that restricts the displacement to the position and maintain that state. Therefore, the lever guide 52 that is displaced in conjunction with the displacement of the second guide 42 can be easily configured.

  The cover 46 is not limited to being displaced from the open state to the closed state by pivoting upward in the direction of gravity, but, for example, pivots in the direction below the gravity direction or in a direction intersecting the gravity direction (for example, the horizontal direction). It may be. Further, the cover 46 is not limited to pressing the lever 51 from the rear side to the front side, and presses or engages in a different direction such as upward or downward in the direction of gravity. May be.

  The second guide 42 is not limited to being displaced from the open state to the closed state by rotating downward in the gravitational direction, and moves, for example, in the direction above the gravitational direction or in a direction intersecting the gravitational direction (for example, the horizontal direction). It may be displaced by this. Further, the second guide 42 is not limited to being pressed upward in the gravitational direction by engaging with the lever guide 52 from below, for example, a direction (for example, horizontal) that intersects the downward direction or the gravitational direction in the gravitational direction. The direction may be pressed or engaged in different directions.

The lever 51 that contacts the cover 46 may not be provided. In that case, it is desirable that the lever guide 52 is not displaced in conjunction with the displacement of the cover 46.
In the present embodiment, the cover opening / closing structure is applied to the conveying apparatus that conveys the recording medium. However, the covering member is not limited to the second guide 42 that forms the conveying path, and a cover member that can be opened and closed on the apparatus main body. The present invention can be applied to any device provided with a covering member that can be opened and closed at a position inside the device main body and covered with the cover member.

  CS ... cut paper, S ... continuous paper, TR ... transport path, 11 ... printer, 22 ... transport device, 42 ... second guide as an example of a covering member, 46 ... cover as an example of a cover member, 51 ... displacement member A lever as an example, 51b ... an abutting part, 52 ... a lever guide as an example of a regulating member, 52e ... an engaging part, 54 ... a sensor as an example of a detecting means.

Claims (5)

A cover member provided in the apparatus main body so as to be displaceable between an open state and a closed state;
A covering member provided inside the apparatus main body and displaceable between an open state and a closed state at a position covered by the cover member;
An allowable position state that allows the cover member to be displaced from the open state to the closed state at a position that intersects the movement locus of the cover member and the movement locus of the covering member, and the cover member is displaced from the open state to the closed state. A regulating member provided so as to be displaceable between a regulated position state that regulates the
The regulating member is interlocked with the displacement of the covering member and is in the allowable position state when the covering member is in the closed state, and is in the restricting position state when the covering member is in the open state. Cover opening and closing structure. A detection unit that is in a detection state when the cover member is in an open state, and a non-detection state in the case where the cover member is in a closed state;
When the cover member is disposed between the cover member and the regulating member and on the movement locus of the cover member, and the cover member is in a closed state in conjunction with the displacement of the cover member, the detection means is turned off. A displacement member that is displaceable to a closed state position to be in a detection state, and is displaceable to an open state position in which the detection means is in a detection state when the cover member is in an open state;
The displacement member is restricted by the restriction member from being displaced from the open state position to the closed state position when the restriction member is in the restriction position state. Cover opening / closing structure described in 1. The covering member is displaced from the closed state to the open state by rotating downward in the direction of gravity about one axis, and the engagement member provided in the restriction member when the covering member is in the closed state. By engaging with the joint from below, the regulating member is pressed and supported upward in the direction of gravity, while the engagement of the regulating member with the engaging portion is released when in the open state. The cover opening / closing structure according to claim 1 or 2, wherein the cover opening / closing structure is provided. The cover member is displaced from the closed state to the open state by rotating upward in the direction of gravity about one axis, and the cover member is provided on the displacement member when the cover member is in the closed state. 4. The cover opening / closing structure according to claim 2, wherein when the contact portion is in contact with the contact portion, the contact of the displacement member with respect to the contact portion is released when the contact portion is in an open state. A transport device comprising the cover opening / closing structure according to any one of claims 1 to 4,
The transporting device, wherein the covering member is a transport path forming member that forms a part of a transport path for transporting the recording medium from the upstream side to the downstream side.

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