JP2008271318A - Open / close link - Google Patents

Abstract

An open / close link (200) having a simple structure that keeps a reading unit (120) open and temporarily stops the reading unit (120) in the process of closing the reading unit (120).
A lower stay 230 having one end coupled to a recording unit 110, an upper stay 210 having one end coupled to a reading unit 120, and a deformation shaft 220 fixed to the other end of the lower stay 230 are provided. The lower stay has a pair of guide surfaces 233, the deformation shaft 220 has a long diameter and a short diameter, and the upper stay 210 includes a narrow portion 213 and wide portions 211 and 215 and is inserted through the deformation shaft 220. And the guide pin 214 for stopping the rotation of the lower stay 210, the deformation shaft 220 slides inside the long hole 216, the upper stay 210 is lowered, and the lower stay 230 reads. By supporting the part 120 and holding the semi-closed state, and slightly opening the reading part 120 from the semi-closed state, the deformation shaft 220 moves in the elongated hole 216 to form a joint.
[Selection] Figure 11

Description

  The present invention relates to an opening / closing link. More specifically, the present invention relates to an opening / closing link having a function of maintaining a member that opens and closes around a hinge in a fully open state and a semi-closed state.

  There is a recording / reading complex machine in which an ink jet recording apparatus and a flatbed scanner are stacked one above the other. In this type of apparatus, the scanner disposed on the upper side may have a structure that also serves as a cover for the recording apparatus disposed on the lower side. That is, when accessing the inside of the recording apparatus, such as when the ink cartridge of the recording apparatus is attached or detached, or when the recording medium jammed in the conveyance path is removed, the scanner as a cover is lifted to expose the inside of the recording apparatus. When the scanner as the cover is opened as described above, it is required to keep the scanner open while the user performs an operation such as replacement of the ink cartridge.

  Further, when closing a scanner opened as a cover, unlike a simple cover, the scanner itself is a precision machine, and it is not preferable to freely drop it to a fully closed state. For this reason, when the scanner is closed, a mechanism is provided for decelerating the fall speed or temporarily stopping the scanner in an intermediate semi-closed state.

  In Patent Document 1 below, as a stay connecting structure that supports an opening / closing cover of a photographic processing apparatus, a rail mechanism that guides the upper end of the stay, and a rail mechanism are provided in the rail mechanism, and follow different paths in the forward path and the return path of the stay upper end. A structure with an avoidance mechanism for guiding is described. With this structure, when closing the opening / closing cover, the opening / closing cover is temporarily held at an intermediate stage and is prevented from closing at once.

  Patent Document 2 below describes a structure that reduces the closing speed when closing a large range cover. As a result, the large and heavy range cover is prevented from dropping suddenly.

  Patent Document 3 below describes a structure in which a link member having a guide groove including a bent portion is provided on a lid body having a pin. With such a structure, the operation is temporarily stopped or braked in the process of closing the lid.

JP 2001-125233 A JP 2005-345050 A JP 2006-040773 A

  As described above, a structure for reducing or braking the operation of the lid in various opening / closing mechanisms of the lid, particularly in the closing process, is proposed. However, the above-mentioned various structures have problems such as a large number of parts and complicated assembly, high strength of parts and high material costs. In addition, a shock absorbing mechanism using a fluid such as a gas damper or an elastic body is expensive, and the performance deteriorates as it is repeatedly used.

  Therefore, for the purpose of solving the above problems, as a first embodiment of the present invention, the lid that is opened and closed by rotating the hinge with respect to the main body as a shaft is closed in the fully opened state and in the process of closing the lid. An open / close link that supports and stops in a semi-closed state that does not cut, and includes a main body-side stay that is rotatably coupled around a rotation shaft formed on the main body, and a rotation shaft formed on the lid. A lid-side stay having one end coupled to be freely rotatable around and a deforming shaft fixed to the other end of the body-side stay and connecting the body-side stay and the lid-side stay to each other. A pair of guide surfaces that are parallel to the axis and extend in the longitudinal direction of the main body side stay, and the deformation axis includes a major axis that extends across the longitudinal direction of the main body side stay, and an extension of the major axis. A lid having a minor axis extending in a direction intersecting the present direction, and a lid The stay has a width that the long diameter slides in contact with the inner surface and extends in the longitudinal direction of the lid stay, and a pair of wide portions that are formed at both ends of the narrow width portion and the long diameter can rotate inside. And a latch that abuts against the guide surface when the deformation shaft is located on the other end side and stops the rotation of the main body side stay about the deformation shaft. When the closed lid is opened, the joint formed by the deformation shaft opens at the other end of the main body side stay and the other end of the lid side stay, and the latch is guided to the guide surface when the lid is fully opened. When the cover is closed from the fully open state, the deformed shaft slides inside the elongated hole, the cover stay stays down, and the body stay supports the cover. By holding the semi-closed state, and by slightly opening the lid from the semi-closed state Spindles moves within the long hole to the other end of the lid side stays, closing link is provided that the joint is formed. As a result, when the lid is fully opened, the lid is supported and held in the fully open state, and when the lid is closed, the closing operation is temporarily stopped in the semi-closed state, and the lid is held in the semi-closed state. An open / close link that can completely close the lid by a specific operation is provided. As will be described later, the open / close link has a simple structure formed by a pair of stays having a simple shape and a small number of members that connect the stays. Therefore, it can be manufactured inexpensively and at the same time operates reliably.

  In the opening / closing link, the main body side stay and the lid side stay have complementary shapes, and may be in close contact with each other when the lid is closed. As a result, when the lid is closed, the open / close link occupies almost no space, so the degree of freedom in layout is high.

  In the opening / closing link, the long hole may have a tapered surface that guides the deformation axis from the wide portion toward the narrow portion on the other end side. As a result, the deforming shaft is reliably guided to the narrow portion, the operation relating to the closing of the lid is decelerated, and once stopped in a predetermined semi-closed state.

  Further, in the above open / close link, the major axis of the deformation shaft has a length that slides against the inner surface of the narrow width portion and reduces the descent speed of the lid side stay when the lid starts to close from the fully open state. May be. Thereby, the braking force generated by the friction with respect to the elongated hole of the deformation shaft decreases the closing speed of the lid.

  Further, in the opening / closing link, the short diameter may have a length that allows the deformation shaft to smoothly move through the narrow portion of the long hole when the lid is in a semi-closed state. As a result, the deforming shaft moves by slightly lifting the lid held in the semi-closed state, so that the open / close link has a complete closure of the lid.

  In the above-mentioned opening / closing link, the deformation shaft may include a pair of shaft members each having a diameter equal to the minor axis and arranged in parallel to each other with an interval forming a width equal to the major axis. Thereby, the deformation | transformation axis | shaft which has a short diameter and a long diameter can be easily formed using the member of a single and simple shape.

  In the opening / closing link, one end of the guide surface may be opened in a direction in which the other end of the main body stay moves after the cover is semi-closed. Thereby, the transition of the main body side stay becomes smooth, and the operation of the opening / closing link is ensured.

  The open / close link may further include an open end holding portion that holds the other end of the main body side stay on the lid when one end of the main body side stay is removed from the rotation shaft of the main body. Thus, when one end of the open / close link is removed from the main body for any reason, the free end of the open / close link can be held on the lid side and can be prevented from interfering with work.

  Further, as a second embodiment of the present invention, a recording unit having a recording head for ejecting ink to a recording material, and a reading head that is disposed on the recording unit and reads an image formed on a document. A reading unit that is opened and closed by rotating with respect to the recording unit about a hinge as a shaft, and is supported in a fully open state in which the reading unit is fully opened and a semi-closed state in which the reading unit is not closed in the process of closing the reading unit An open / close link that is stopped by being rotated with respect to the recording unit about the hinge as a shaft, a fully opened state in which the reading unit is fully opened, and a semi-closed state in which the reading unit is not closed in the process of closing the reading unit An opening / closing link that is supported and stopped by a recording unit stay that is rotatably coupled around a rotation shaft formed on the recording unit and a rotation shaft formed on the reading unit. Connect one end freely And a deforming shaft that is fixed to the other end of the recording unit side stay and connects the recording unit side stay and the reading unit side stay to each other. It has a pair of guide surfaces that are parallel and extend in the longitudinal direction of the recording unit side stay, and the deformation axis has a major axis that intersects the longitudinal direction of the recording unit side stay and an extension direction of the major axis The reading portion side stay has a width that the long diameter slides in contact with the inner surface and extends in the longitudinal direction of the reading portion side stay; and A narrow hole formed at both ends of the narrow width portion and including a pair of wide width portions whose major axis can be rotated inside, and an elongated hole inserted through the deformation shaft, and when the deformation shaft is located on the other end side, abuts on the guide surface And a latch for stopping the rotation of the recording unit side stay about the deformation axis, In this case, the joint formed by the deformation shaft opens at the other end of the recording unit side stay and the other end of the reading unit side stay, and when the reading unit is fully opened, the latch abuts against the guide surface to fully open. When the reading unit is closed from the fully open state, the deformation shaft slides inside the elongated hole, the reading unit stay stays down, and the recording unit stay supports the reading unit and is semi-closed. An opening / closing link is provided in which the state is maintained and the deforming shaft moves through the elongated hole to the other end of the reading unit side stay by slightly opening the reading unit from the semi-closed state to form a joint. Thus, an opening / closing link that provides the above-described effect when the reading unit is opened / closed with respect to the recording unit is provided.

  It should be noted that the above summary of the invention does not enumerate all the necessary features of the present invention. Further, a sub-combination of these feature groups can be an invention.

  Hereinafter, the invention will be described through embodiments of the invention, but the following embodiments do not limit the invention according to the claims. In addition, not all the combinations of features described in the embodiments are essential for the solution of the invention.

  FIG. 1 is a perspective view showing the overall shape of a recording / reading multifunction peripheral 100 including an opening / closing link 200 (see FIG. 3 and subsequent drawings) according to an embodiment of the present invention. As shown in the figure, the record reading multifunction device 100 has a structure in which a recording unit 110 and a reading unit 120 are stacked.

  The recording unit 110 includes a lower case 111 that forms the casing, a paper support 112 that is attached to the back surface of the lower case 111, and a discharge tray 114 that is formed on the front surface. A recording sheet for recording an image is loaded into the paper support 112, and after the image is recorded in the lower case 111, it is discharged to the discharge tray 114.

  On the other hand, the reading unit 120 includes an upper case 121 and a document presser 122 mounted on the upper surface thereof. A handle 124 is formed at the front end of the document retainer 122, and a read document can be placed on the document table formed on the upper surface of the upper case 121 by lifting the handle 124 with the hand.

  Further, the recording / reading multifunction device 100 includes an IO panel 132 on the side of the discharge tray 114 of the recording unit 110. The IO panel 132 has a card slot for inserting a flash memory card, a USB socket for connecting a USB connector, and the like.

  An operation panel 130 is disposed beside the document presser 122 of the reading unit 120. The operation panel 130 includes buttons for operating the recording / reading multifunction peripheral 100 alone, and also includes a display panel for displaying an operation state.

  FIG. 2 is a diagram illustrating a state in which the recording / reading multifunction peripheral 100 illustrated in FIG. 1 is viewed from the side. As shown in the figure, the paper support 112 extends higher than the overall height of the recording / reading multifunction peripheral 100, and recording paper can be easily loaded from the front side of the recording / reading multifunction peripheral 100. In addition, the discharge tray 114 extends long in front of the recording / reading multifunction peripheral 100 and supports the recording sheet on which an image is recorded in a state where the recording sheet is discharged out of the lower case 111. Further, as is clear from FIG. 2, the lower case 111 that forms the casing of the recording unit 110 and the upper case 121 that forms the casing of the reading unit 120 are stacked one above the other.

  FIG. 3 shows a state in which the reading unit 120 that also serves as a cover of the recording unit 110 is lifted for the purpose of accessing the inside of the recording unit 110 in the recording / reading multifunction peripheral 100 shown in FIG. As shown in the figure, the reading unit 120 is coupled to the recording unit 110 by a hinge (not shown) formed at the rear end thereof, and can be opened and closed as a whole with the hinge as a shaft. As a result, the inside of the recording unit 110 is accessed, the ink cartridge or the like is replaced, and maintenance work such as removing the jammed recording paper is performed.

  Here, the opened reading unit 120 is required to hold the opened state while performing the above maintenance work. Therefore, in the recording / reading multifunction peripheral 100, the open / close link 200 supports the upper case 121 of the opened reading unit 120 and maintains the fully opened state. The detailed structure and operation of the opening / closing link 200 will be described later.

  FIG. 4 is an exploded side view showing members that form the opening / closing link 200 described above. As shown in the figure, the opening / closing link 200 is formed by three members, an upper stay 210, a deformation shaft 220, and a lower stay 230.

  The upper stay 210 has a shaft 212 that is rotatably mounted to a bearing portion 129 (see FIG. 5) formed in the upper case 121 in the vicinity of the upper end thereof. Moreover, it has the long hole 216 extended over most of the longitudinal direction. Furthermore, the upper stay 210 has a guide pin 214 at its lower end.

  The long hole 216 has wide portions 211 and 215 having a wide width at the upper end and the lower end. The wide portions 211 and 215 communicate with each other through a narrow portion 213 having a narrow width. The inner surfaces of the wide portions 211 and 215 and the inner surface of the narrow portion 213 are smoothly continuous by a tapered slope.

  The guide pin 214 projects from the upper stay 210 in a direction orthogonal to the paper surface of FIG. Further, the guide pin 214 has a tip surface that is inclined so that the right side is low and the left side is high in the drawing.

  The deformation shaft 220 is formed by a pair of shaft members 221 and 222 mounted in parallel. For this reason, the deformation shaft 220 has a major axis in the arrangement direction of the shaft members 221 and 222 and a minor axis equal to the diameter of one of the shaft members 221 and 222 in the direction orthogonal to the arrangement direction. With such a structure, the deformed shaft 220 having a short diameter and a long diameter is simply formed using the linear shaft members 221 and 222.

  The lower stay 230 has a pair of shaft holes 231 and 232 through which shaft members 221 and 222 forming the deformation shaft 220 are inserted at the upper end thereof. Further, the lower stay 230 has a shaft 238 that fits into a bearing portion 119 formed in the lower case 111 of the recording unit 110 at the lower end.

  The lower stay 230 has a pair of guide surfaces 233 extending in the longitudinal direction and facing in parallel. The upper part 234 of the guide surface 233 is formed linearly along the longitudinal direction of the lower stay 230. On the other hand, the lower portion 235 of the guide surface 233 is bent sideways and opens toward the side surface of the lower stay 230.

  Further, the lower stay 230 has a protrusion 236 on the side surface between the guide surface 233 and the shaft 238. The protrusion 236 is used when the lower stay 230 is locked to the upper case 121 in a specific state, which will be described later.

  The upper stay 210, the deformation shaft 220, and the lower stay 230 as described above are integrated by attaching the deformation shaft 220 inserted into the elongated hole 216 of the upper stay 210 to the lower stay 230. An opening / closing link 200 is obtained. In this case, the major axis of the deformation shaft 220 is slightly wider than the narrow portion 213 of the long hole 216 and narrower than the wide portions 211 and 215.

  Accordingly, the deformation shaft 220 freely rotates inside the wide portions 211 and 215, but slides while being pressed against the inner surface of the long hole 216 in the narrow portion 213. On the other hand, the minor axis of the deformation shaft 220 is shorter than the width of the narrow portion 213 of the long hole 216. The guide pins 214 of the upper stay 210 have a diameter smaller than the interval between the guide surfaces 233 and smoothly move between the guide surfaces 233.

  Further, although the lower stay 230 appears as one overlapping in FIG. 4, as will be described later with reference to FIG. 10, a pair of members each having a pair of guide surfaces 233 are integrally formed. The upper stay 210 is assembled while being sandwiched between the pair of members. The tip of the guide pin 214 formed at the lower end of the upper stay 210 is positioned slightly outside the pair of members.

  On the other hand, in the vicinity of the upper end of the guide surface 233, an inclined surface 237 complementary to the tip of the guide pin 214 of the upper stay 210 is formed on the side surface (the surface on the other side of the paper) of the lower stay 230. As a result, the guide pin 214 can enter the inside of the guide surface from the side, and at the same time forms a latch that prevents the guide pin 214 from coming out once the guide surface 233 is entered.

  FIG. 5 is a perspective view showing the structure of the opening / closing link 200 in which the members shown in FIG. 4 are assembled. The open / close link 200 shown in this figure is in substantially the same state as an operation state 206 described later with reference to FIG.

  As shown in the figure, the lower stay 230 has a structure in which a pair of symmetrical members each having a guide surface 233 having the same shape are integrated in the vicinity of the shaft 238. The upper stay 210 is sandwiched between these members and changes inside the lower stay 230. Correspondingly, guide pins 214 formed at the end of the upper stay 210 are also formed on the front and back of the upper stay 210, respectively.

  Further, the shaft members 221 and 222 are inserted into the shaft holes 231 and 232, and further, since one shaft member 221 is fitted with the E clip 229, it does not fall off. In addition, the other shaft member 222 is also prevented from falling off because the head is closed by the same E clip 229. Further, in this operation state 206, since the arrangement direction of the shaft members 221 and 222 substantially coincides with the inclination of the long hole 216, the deformation shaft 220 moves smoothly within the narrow width portion 213 of the long hole.

  FIG. 6 is a view showing one operation state 201 of the opening / closing link 200 in which the members shown in FIG. 4 are assembled. The operation state 201 indicates the opening / closing link 200 in the process of opening the reading unit 120 as a cover of the recording unit 110 in the direction indicated by the arrow X in the drawing.

  As shown in the figure, in the operation state 201, the deformation shaft 220 is positioned inside the wide portion 215 of the elongated hole 216, and the opening / closing link 200 hinges the upper end of the lower stay 230 and the lower end of the upper stay 210. Open as. As a result, the lower stay 230 rotates in the direction of arrow A in the drawing with the bearing portion 129 on the lower case 111 of the recording portion 110 as an axis. Further, as the upper stay 210 rotates, the guide pin 214 approaches the guide surface 233 from the side.

  Further, the upper stay 210 rotates in the direction of the arrow B in the drawing around the shaft 212 attached to the bearing portion 129 of the upper case 121 of the recording unit 110. By these series of operations, the reading unit 120 is smoothly opened without being blocked by the opening / closing link 200.

  FIG. 7 is a diagram showing the next operation state 202 of the opening / closing link 200. The operation state 202 indicates a state of the opening / closing link 200 in a fully opened state where the reading unit 120 as a cover is completely opened.

  As shown in the figure, in the operation state 202, the entire open / close link 200 extends linearly. At this time, the guide pin 214 of the upper stay 210 enters the inside of the guide surface 233. Therefore, the open / close link 200 is not bent as in the operation state 201 shown in FIG.

  Further, the major axis of the deformation shaft 220 is substantially horizontal. For this reason, the deformation shaft 220 abuts against the tapered portion between the wide portion 215 and the narrow portion 213 of the long hole 216, and the open / close link 200 is maintained in a fully extended state. As a result, the reading unit 120 is kept fully open.

  FIG. 8 is a diagram showing the next operation state 203 of the opening / closing link 200. The operation state 203 indicates a state of the opening / closing link 200 when the reading unit 120 as a cover is pushed down and starts to close.

  As shown in the figure, the deformation shaft enters the narrow portion 213 by being guided by the tapered portion between the wide portion 215 and the narrow portion 213 of the long hole 216. In this case, as described above, since the major axis of the deformation shaft slides inside the narrow portion 213, the lowering of the upper stay 210 becomes slow.

  The guide pin 214 of the upper stay 210 is also guided by the guide surface 233 and descends in the longitudinal direction of the lower stay 230. Therefore, the opening / closing link 200 is shortened as shown by an arrow C in the drawing without being bent. As a result, the upper case 121 of the reading unit 120 is gradually closed.

  FIG. 9 is a diagram showing a further next operation state 204 of the opening / closing link 200. The operation state 204 indicates a state of the opening / closing link 200 when the reading unit 120 as a cover is further pushed down.

  As shown in the figure, the upper stay 210 also descends as the reading unit 120 descends. Accordingly, the guide pin 214 is guided to the side of the lower stay 230 along the lower portion 235 of the guide surface 233 at the lower end of the upper stay 210. At this time, the deformation shaft 220 reaches one wide portion 211 of the elongated hole 216, so that the upper stay 210 rolls clockwise around the deformation shaft 220 as shown by an arrow D in the drawing. To do.

  FIG. 10 is a diagram showing a further next operation state 205 of the opening / closing link 200. An operation state 205 indicates a state of the opening / closing link 200 in a semi-closed state in which the closing of the reading unit 120 as a cover is temporarily stopped.

  As shown in the figure, the upper stay 210 that has rolled in accordance with the lowering of the reading unit 120 eventually brings its side surface into contact with the lower surface of the reading unit 120. Thereby, the rolling of the upper stay 210 is locked.

  At this time, the major axis of the deformation shaft 220 faces the direction intersecting with the extending direction of the elongated hole 216. Therefore, the deformation shaft 220 does not enter the narrow portion 213 of the elongated hole 216. With these actions, the reading unit 120 is supported by the lower stay 230 and maintains a semi-closed state.

  FIG. 11 is a perspective view showing an appearance of the recording / reading multifunction device 100 in the semi-closed state. FIG. 12 is a side view showing the same state from the side. 11 and 12 are drawn from the same viewpoint as FIGS. 1 and 2, respectively.

  As shown in the figure, in the semi-closed state, the opening / closing link 200 holds the reading unit 120 at a height corresponding to the length of the lower stay 230. As a result, the reading unit 120 is not lowered to a completely closed state, and a large impact is prevented from being applied to the built-in image reading mechanism.

  The opening / closing link 200 temporarily stops its descent in the process of closing the reading unit 120. However, when the reading unit 120 is opened, the opening / closing link 200 is smoothly opened to a fully opened state without being stopped halfway. Therefore, the state shown in FIGS. 11 and 12 is described as a “half-closed state”.

  FIG. 13 is a diagram showing a further next operation state 206 of the opening / closing link 200. The operation state 206 indicates a state of the opening / closing link 200 when the reading unit 120 held in the semi-closed state is slightly lifted.

  As shown in the figure, when the reading unit 120 in the semi-closed state is slightly lifted, the upper stay 210 slightly rolls counterclockwise on the deformation shaft 220 as the axis of the elongated hole 216. The slope changes. As a result, when the inclination of the narrow portion 213 of the long hole 216 coincides with the inclination of the major axis of the deformation shaft 220, the deformation shaft 220 has a narrow width in the direction indicated by the arrow E in the drawing due to the weight of the lower stay 230. Slide inside the part 213.

  FIG. 14 is a diagram showing a further next operation state 207 of the opening / closing link 200. An operation state 208 shows a state of the opening / closing link 200 when the reading unit 120 is descending in a state where the deformation shaft 220 has completely slid to reach the wide portion 215 of the elongated hole 216.

  As shown in the figure, in the operation state 207, the deformation shaft 220 enters the wide portion 215 of the elongated hole 216, so that the upper stay 210 is free from the lower stay 230 around the deformation shaft 220. To turn. Therefore, as the reading unit 120 is lowered, the lower stay 230 rotates in the direction indicated by the arrow G in the drawing. Further, the upper stay 210 rotates in the direction indicated by the arrow F in the drawing. The operation of these opening / closing links 200 does not prevent the reading unit 120 from being lowered, as in the case of the operation state 201 shown in FIG.

  FIG. 15 is a diagram showing a further next operation state 208 of the opening / closing link 200. An operation state 208 indicates a state of the opening / closing link 200 when the reading unit 120 is lowered and abuts on the recording unit 110.

  As shown in the figure, in the operation state 208, the open / close link 200 is folded, and the upper stay 210 and the lower stay 230 overlap each other in the figure. For this reason, the space occupied by the opening / closing link 200 within the recording / reading multifunction peripheral 100 is kept to a minimum.

  FIG. 16 is a diagram illustrating another operation state 209 of the opening / closing link 200. The operation state 209 shows the state of the opening / closing link 200 when the shaft 238 is removed from the bearing portion 119 of the recording unit 110 and the reading unit 120 is opened widely in the lower stay 230.

  As shown in the figure, when the maintenance of the recording unit 110 is performed, the lower end of the opening / closing link 200 may be detached from the bearing unit 119 of the recording unit 110 and the reading unit 120 may be opened widely. In this case, since the center of gravity of the reading unit 120 moves to the outside of the hinge, the reading unit 120 can be kept open without particularly supporting the reading unit 120.

  However, the opening / closing link 200 is lifted together with the reading unit 120 and hangs down from the reading unit 120 as it is. This not only interferes with maintenance work, but may accidentally touch the opening / closing link 200 and break it.

  On the other hand, the opening / closing link 200 includes a protrusion 236 near the end of the lower stay 230. In addition, on the upper case 121 side of the reading unit 120, a gripping unit 127 that fits with the protrusion 236 is formed. Accordingly, the end of the lower stay 230 can be fixed to the reading unit 120 side.

  As described above, the opening / closing link 200 has a simple structure in which few members such as the upper stay 210, the lower stay 230, and the deformation shaft 220 are combined. In addition, in spite of its simple structure, when it is opened, the reading unit 120 is not hindered from being lifted, and the fully opened reading unit 120 can be held. Furthermore, when closing, the reading unit 120 is held in a semi-closed state to prevent the reading unit 120 from dropping at a stroke.

  As mentioned above, although this invention was demonstrated using embodiment, the technical scope of this invention is not limited to the range as described in the said embodiment. It will be apparent to those skilled in the art that various modifications or improvements can be added to the above-described embodiment. It is apparent from the scope of the claims that the embodiments added with such changes or improvements can be included in the technical scope of the present invention.

FIG. 2 is a perspective view of a recording / reading multifunction peripheral 100 including an opening / closing link 200. 2 is a side view of the recording / reading multifunction peripheral 100. FIG. FIG. 3 is a side view showing the recording / reading multifunction peripheral 100 with the recording unit 110 in a fully opened state. It is a side view which decomposes | disassembles and shows the member which forms the opening-and-closing link 200. FIG. It is a perspective view which shows the structure of the assembled opening-and-closing link 200. FIG. It is a figure which shows one operation state 201 of the opening-and-closing link 200. FIG. It is a figure which shows the next operation state 202 of the opening-and-closing link. It is a figure which shows the next operation state 203 of the opening-and-closing link 200 again. It is a figure which shows the next operation state 204 of the opening-and-closing link 200 again. It is a figure which shows the next operation state 205 of the opening / closing link 200. FIG. FIG. 2 is a perspective view showing the recording / reading multifunction peripheral 100 in a semi-closed state. FIG. 2 is a side view showing the recording / reading multifunction peripheral 100 in a semi-closed state. It is a figure which shows the next operation state 206 of the opening-and-closing link 200. FIG. It is a figure which shows the next operation state 207 of the opening-and-closing link 200. FIG. It is a figure which shows the next operation state 208 of the opening-and-closing link 200. FIG. It is a figure which shows the other operation state 209 of the opening / closing link 200. FIG.

Explanation of symbols

100 Recording / reading multifunction device, 110 Recording unit, 111 Lower case, 112 Paper support, 114 Eject tray, 119, 129 Bearing unit, 120 Reading unit, 121 Upper case, 122 Document holder, 124 Handle, 127 Holding unit, 132 IO panel , 130 Operation panel, 200 Opening / closing link, 210 Upper stay, 211, 215 Wide part, 212, 238 shaft, 213 Narrow part, 214 Guide pin, 216 Long hole, 220 Deformation shaft, 221, 222 Shaft material, 230 Lower side Stay, 231, 232 Shaft hole, 233 Guide surface, 234 Upper part, 235 Lower part, 236 Protrusion, 237 Inclined surface

Claims (9)

An open / close link that supports and stops the lid that is opened and closed by rotating with respect to the main body around the hinge in a fully open state where the lid is fully opened and a semi-closed state where the lid is not closed during the process of closing the lid. And
A main body side stay having one end coupled to the main body, a deformation shaft fixed to the other end of the main body side stay, one end coupled to the lid, and extending in a longitudinal direction, the deformation shaft being An elongated hole inserted therethrough, and a lid side stay having a latch that stops rotation with respect to the main body side stay when the main body side stay and the longitudinal direction are aligned,
When the closed lid is opened, the main body side stay opens with respect to the lid side stay around the deformation axis, and when the lid is fully opened, the main body side stay and the longitudinal direction are aligned. The latch stops rotation and the deformed shaft abuts the elongated hole to maintain the fully opened state,
When the lid is closed from the fully opened state, the deformation shaft slides inside the elongated hole, the lid side stay is lowered in the longitudinal direction of the main body side stay, and the restraint of the latch is released. And the body-side stay supports the lid and is held in a semi-closed state,
Further, by slightly opening the lid from the semi-closed state, the deformation shaft moves to the other end of the lid-side stay inside the elongated hole, and further, the deformation shaft is lowered by lowering the lid. An opening / closing link that closes the lid by closing the main body side stay with respect to the lid side stay at the center.   The open / close link according to claim 1, wherein the main body side stay and the lid side stay have complementary shapes, and are in close contact with each other when the lid is closed.   2. The open / close link according to claim 1, wherein the elongated hole has a tapered surface that guides the deformation shaft from the wide portion toward the narrow portion on the other end side.   2. The major axis of the deformation shaft has a length that slides against the inner surface of the narrow-width portion to reduce the lowering speed of the lid-side stay when the lid starts to be closed from the fully open state. Opening and closing link described in.   2. The open / close link according to claim 1, wherein the short diameter has a length that allows the deformation shaft to smoothly move through the narrow portion of the elongated hole when the lid is in the semi-closed state.   2. The open / close link according to claim 1, wherein each of the deformable shafts includes a pair of shaft members individually having a diameter equal to the minor axis and arranged in parallel to each other at an interval in which a width equal to the major axis is formed. .   The opening / closing link according to claim 1, wherein one end of the guide surface is opened in a direction in which the other end of the main body side stay moves after the semi-closed state of the lid.   The open / close link according to claim 1, further comprising an open end holding portion that holds the other end of the main body side stay on the lid when the one end of the main body side stay is detached from the rotating shaft of the main body. A recording unit having a recording head for discharging ink to a recording material; and a reading unit having a reading head arranged on the recording unit and configured to read an image formed on a document. An opening / closing link that supports and stops a reading unit that is opened and closed by rotating on a shaft with respect to a recording unit in a fully open state in which the reading unit is fully opened and a semi-closed state in which the reading unit is not closed in the process of closing the reading unit ,
Opening and closing that supports and stops the reading unit that is opened and closed by rotating with respect to the recording unit around the hinge in a fully opened state that is fully opened and a semi-closed state that is not closed in the process of closing the reading unit. A link,
A recording unit side stay having a pair of guide surfaces extending in the longitudinal direction and having one end rotatably coupled around a rotation axis formed in the recording unit;
A deformation shaft having a major axis and a minor axis, and fixed to the other end of the recording unit side stay;
One end is rotatably coupled around a rotation axis formed in the reading unit, and includes a narrow portion extending in a longitudinal direction and a pair of wide portions formed at both ends of the narrow portion, and the deformation A reading portion side having a long hole inserted through a shaft and a latch that abuts against one of the guide surfaces and stops rotation with respect to the recording portion side stay when the recording portion side stay and the longitudinal direction are aligned. With stays,
When the reading unit that is closed is opened, the joint formed by the deformation shaft is opened at the other end of the recording unit side stay and the other end of the reading unit side stay, and the reading unit is fully opened. The latch is in contact with the guide surface to maintain the fully open state,
When the reading unit is closed from the fully opened state, the deformation shaft slides inside the elongated hole, and the reading unit side stay descends in the longitudinal direction of the recording unit side stay, and the recording unit side The stay supports the reading unit and is held in a semi-closed state,
Further, by slightly opening the reading unit from the semi-closed state, the deformation shaft moves to the other end of the reading unit side stay in the elongated hole, and the joint is re-formed, and the reading unit is lowered. An opening / closing link that closes the joint by closing.

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