JP2011011860A - Electronic device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize smooth pushing-down operation even when pushing down in a state of applying force in both directions of this side and the innermost side, when pushing down a second guide plate downward pulled out of a first guide plate.SOLUTION: This electronic device has a plurality of guide plates for holding paper, and is constituted so that an upper side locking recessed part 58 formed on the first guide plate 51 and a locking projection part 75A formed on the second guide plate 71 engage with each other in a state of pulling out the second guide plate 71 from the first guide plate 51, by slidably arranging the second guide plate 71 being the other one guide plate to the first guide plate 51 being one guide plate. The locking projection part 75A of the second guide plate 71 is arranged in a position separated upward by a predetermined distance T31 from the lower edge 74 of the second guide plate 71.

Description

  In the present invention, the second guide plate is slidably provided with respect to the first guide plate, and the locking portion is formed on the first guide plate in a state where the second guide plate is pulled out from the first guide plate. The present invention relates to an electronic device configured to engage with a locked portion formed on a second guide plate, and more particularly, to a lock and unlock structure between the locking portion and the locked portion.

  FIG. 27 shows an example of the configuration of a paper feed tray of a conventional electronic device in which a second guide plate is slidably provided with respect to the first guide plate (see, for example, Patent Document 1).

  This paper feed tray is composed of three plate-like members 202, 203 and 204. That is, the rail 208 of the plate member 203 is engaged with the slit 201 of the plate member 202 so that the plate member 203 can slide on the plate member 202. Further, the rail 208 of the plate member 204 is engaged with the slit 201 of the plate member 203 so that the plate member 204 can slide on the plate member 203. When the sheet feed tray is not used, the plate members 203 and 204 are slid to the sheet feed port side (the left side in the figure) (not shown) and stored on the plate member 202. The shaped members 203 and 204 are slid and pulled out until each rail 208 stops at the end of each slit 201.

  In the paper feed tray having such a structure, the mechanism described in Patent Document 1 does not include a mechanism portion that locks the plate-like members 203 and 204 in a state where the paper-like trays 203 and 204 are pulled out in order to arrange the paper feed tray horizontally. .

  On the other hand, a small electronic device such as a home facsimile machine is arranged with a paper feed tray upright because of installation space. Therefore, when the paper feed tray having the configuration described in Patent Document 1 is placed vertically, a mechanism unit is required to lock the plate-like members 203 and 204 in a state where the plate-like members 203 and 204 are pulled out.

  A conventional slide mechanism and lock mechanism structure in such a small facsimile apparatus will be described below.

  FIG. 1 to FIG. 3 are external views of a small facsimile machine having a lock mechanism as viewed from the front side. FIG. 1 shows a state in which the open / close lid is closed and FIG. 2 shows a state in which the open / close lid is opened. FIG. 3 shows a use state in which the guide plate is pulled out from the opened opening / closing lid.

  The facsimile apparatus includes an apparatus housing 10 incorporating an image reading unit, an image forming unit, and the like (not shown), an operation panel unit 20 and an opening / closing lid 30 provided on the upper surface of the apparatus housing 10.

  The operation panel unit 20 is disposed on the front side of the upper surface of the apparatus housing 10 and includes a display unit 20a including a liquid crystal panel and an operation button unit 20b including a numeric keypad and various function keys. The apparatus casing 10 on the lower side of the operation panel unit 20 is provided with a document discharge port 103 for discharging the read document.

  On the other hand, an opening 12 is provided on the rear side of the upper surface of the apparatus housing 10. A document insertion port (not shown), a paper insertion port 112, and a paper discharge port 113 are provided in the opening 12. Yes. Further, the opening / closing lid 30 is provided in the opening 12, and the opening / closing lid 30 is opened / closed from the front side to the back side with both sides of the rear end portion of the opening 12 serving as pivots. It is supposed to be.

  The opening / closing lid 30 having such a structure is provided with a first guide plate 51 and a second guide plate 71 on the inner surface side (the surface facing the front side when opened and raised).

  The first guide plate 51 is provided so as to be slidable relative to the opening / closing lid 30, and the second guide plate 71 is provided so as to be slidable relative to the first guide plate 51. That is, FIG. 2 shows a state in which the opening / closing lid 30 is opened in a state where the first guide plate 51 and the second guide plate 71 are housed so as to fit inside the opening / closing lid 30, and FIG. The state is shown in which the first guide plate 51 and the second guide plate 71 are fully drawn upward from the open / close lid 30 in the closed state.

  In the above configuration, here, focusing on the first guide plate 51 and the second guide plate 71, a structure for sliding the second guide plate 71 relative to the first guide plate 51 will be described with reference to FIGS. I will explain. However, other structures will be described later in [Description of Embodiment].

18A is an exploded perspective view showing the first guide plate 51 and the second guide plate 72, FIG. 18B is an enlarged view of the Q11 portion of FIG. 18A, and FIG. 19 shows the second guide plate 71 as the first guide. The front view which shows the state accommodated in the board 51, FIG. 20 is the front view which shows the state which pulled out the 2nd guide plate 71 from the 1st guide plate 51 to the full, FIG. 21 is HH sectional drawing of FIG. 22 is a cross-sectional view taken along the line II of FIG. 19, and FIG. 23 is a cross-sectional view taken along the line JJ of FIG.
(1) Description of the first guide plate 51 As shown mainly in FIG. 18A, the first guide plate 51 is a substantially rectangular plate-like member, and the first holding pieces 54 are formed on the left and right side edges. Has been. And the standing piece 53 is formed toward the back surface side from the base end part (end part near the center) of this 1st holding piece 54, The 1st holding piece is formed in the center part of the outer surface side of this standing piece 53. A guide rail piece 52 is formed in parallel with 54. The guide rail piece 52 and the first holding piece 54 are members that constitute a slide mechanism unit that is slidably mounted on the opening / closing lid 30, details of which will be described later. The description will be omitted here.

  Further, a second holding piece 55 is formed on the inner side surface of the upright piece 53 so as to extend substantially horizontally toward the central portion of the first guide plate 51, and the upper end portion ( The upper end in the vertical direction Y) is a protruding piece 56 that extends further toward the center of the first guide plate 51. The protruding piece 56 serves as a stopper piece when a second guide plate 71 described later is pulled out to the full.

Furthermore, when the second guide plate 71 (described later) is pulled out from the first guide plate 51 to the full upper position on the inner surface of the first guide plate 51 at a predetermined distance further from the upright pieces 53, 53, Two upper locking recesses 58, 58 for locking the two guide plates 71 are provided in the width direction with a predetermined interval. In addition, when the second guide plate 71 described later is pushed into the first guide plate 51 to the full position below the upright pieces 53, 53 at a position a predetermined distance further inside the first guide plate 51, A pair of lower locking recesses 59, 59 for locking the second guide plate 71 are provided in the width direction at a predetermined interval.
(2) Description of the Second Guide Plate 71 As shown mainly in FIGS. 18A and 18B, the second guide plate 71 is a substantially rectangular plate-like member, and the vertical direction Y is provided on the left and right side edges. Guide rail portions 72, 72 extending along the line are respectively provided. The guide rail portion 72 is inserted into a saddle-shaped slide groove portion 57 (see also FIG. 21) formed by the upright pieces 53 and the second holding pieces 55 arranged on the left and right sides of the first guide plate 51. In this manner, the slide groove 57 is slidably movable in the vertical direction Y.

  Further, as shown in the enlarged view of FIG. 18B, a second abutting piece 73 having a shape that spreads upward in a wedge shape is formed in the lower portion on the back side of the guide rail portion 72. When the second guide plate 71 is fully pulled out from the first guide plate 51, the second abutment piece 73 is formed on the projection piece 56 formed on the second holding piece 55 of the first guide plate 51. The contact piece 73 serves as a restricting member that restricts the second guide plate 71 from coming out of the first guide plate 51 by contacting.

  Further, locking projections 75 and 75 are predetermined on the lower end edge 74 on the front side (the back side in FIG. 18A) of the second guide plate 71 at a position further inside the guide rails 72 and 72 by a predetermined distance. A pair is provided in the width direction with an interval of. When the second guide plate 71 is fully pulled out from the first guide plate 51 (see FIG. 23), the locking projection 75 engages with the upper locking recess 58 of the first guide plate 51, and When the two guide plates 71 are pushed to the full extent with respect to the first guide plate 51 (see FIG. 22), they engage with the lower locking recess 59 of the first guide plate 51.

  In the above configuration, the first guide plate 51 and the second guide plate 71 are such that the guide rail portion 72 of the second guide plate 71 is inserted through the slide groove portion 57 of the first guide plate 51 as shown in FIG. For this reason, the slide groove portion 57 is disposed in a substantially close contact state where both left and right end portions are supported. Therefore, when the locking projection 75 of the second guide plate 71 is in contact with the back surface of the first guide plate 51 (that is, engaged with the upper locking recess 58 and the lower locking recess 59). 2), the second guide plate 71 is slightly bent (elastically deformed) with the both slide groove portions 57 and 57 as both support portions b11 and b11, and this slight deflection always causes contact with the back surface of the first guide plate 51. The contact is made in a contacted state (contacted with some pressure). Therefore, when the positions of the locking projection 75 and the upper locking recess 58 or the lower locking recess 59 match, the locking projection 75 is locked by the elastic restoring force of the second guide plate 71. It fits into the concave portion 58 for use or the concave portion 59 for locking the lower side.

  Since the conventional first guide plate 51 and second guide plate 71 have the above-described structure, when the second guide plate 71 is fully pulled out from the first guide plate 51, it is shown in FIGS. As described above, the locking projection 75 of the second guide plate 71 is fitted into and engaged with the upper locking recess 58 of the first guide plate 51, and the projection 56 of the first guide plate 51 is The second guide plate 71 is regulated so that the second guide plate 71 does not come out of the first guide plate 51 when the second contact piece 73 of the two guide plate 71 contacts. That is, by defining the contact position between the projection piece 56 and the second contact piece 73, the first guide plate 51 and the second guide plate 51 when the second guide plate 71 is fully pulled out from the first guide plate 51. The width W1 in the height direction (vertical direction) of the portion where the guide plate 71 overlaps (see FIGS. 20 and 23) can be determined. The width W1 of the overlapping portion is such a width that the second guide plate 71 can be stably held when the second guide plate 71 is pulled out to the full extent (or such that the user who uses the device does not feel rattling). Width).

  On the other hand, when the second guide plate 71 is pushed to the full extent with respect to the first guide plate 51, as shown in FIGS. 19 and 22, the locking projection 75 of the second guide plate 71 has the first guide plate 51. It fits into and engages with the lower locking recess 59.

JP-A-6-227679

  When the second guide plate 71 drawn out from the first guide plate 51 is pushed down from the top to be stored in the first guide plate 51 in the facsimile apparatus having the above configuration, as indicated by an arrow P1 in FIG. In addition, when the second guide plate 71 is pushed downward so as to be pulled slightly toward the front side (left side in the figure), the upper edge 65 of the first guide plate 51 becomes the fulcrum a11, and the second guide plate 71 Is slightly inclined toward the front side. At this time, as shown in FIG. 26, the left and right guide rail portions 72 and 72 of the second guide plate 71 respectively held by the left and right slide groove portions 57 and 57 of the first guide plate 51 are the support portions b11. Thus, the second guide plate 71 is slightly bent (curved state). As a result, the second guide plate 71 below the fulcrum a11 is moved from the back surface of the first guide plate 51 by the interaction between the inclination of the second guide plate 71 (FIG. 24) and the bending (FIG. 26). As a result, the locking projection 75A of the second guide plate 71 comes out of the upper locking recess 58 of the first guide plate 51, and the engagement is released. Accordingly, when the second guide plate 71 is subsequently pushed down, the second guide plate 71 smoothly slides downward with respect to the first guide plate 51.

  On the other hand, as shown by an arrow P2 in FIG. 25, when the second guide plate 71 is pushed down slightly to the back side (right side in the figure), the lower end edge 74 of the second guide plate 71 is The second guide plate 71 is slightly tilted to the back side with the fulcrum a21 being bent slightly. That is, in this case, the engaging position between the upper locking recess 58 and the locking projection 75 is the rotation fulcrum a21 of the second guide plate 71. Therefore, the second guide plate 71 is pushed downward by a certain amount. However, the engagement between the upper locking recess 58 and the locking projection 75 is not released. Further, in order to increase the holding force at the time of locking, the locking projection 75 has a horizontally long rectangular parallelepiped shape, which is one reason that the engagement is not easily released. That is, there is a problem that when the second guide plate 71 is pushed down slightly to the back side, the second guide plate 71 cannot be slid down no matter how much it is pushed.

  As described above, in the conventional slide mechanism and lock mechanism structure of the first guide plate and the second guide plate in the facsimile apparatus, when the pulled-out second guide plate 71 is pushed down, its pushing direction (P1 or P2). As a result, the second guide plate 71 may or may not slide smoothly, and the user must always be aware of the pressing direction, which hinders operability. Further, when the force is pushed down, a load is applied to the guide rail portion 72 and the slide groove portion 57, which may cause damage.

  The present invention was devised to solve such problems. The purpose of the present invention is to push down the pulled-out second guide plate downward by adding some contrivance to the conventional slide mechanism and lock mechanism structure. An object of the present invention is to provide an electronic device that can be smoothly pushed down regardless of the direction of force applied to either the front side or the back side.

  In order to solve the above problems, an electronic apparatus according to the present invention includes a plurality of guide plates that hold paper, and a second guide plate that is another guide plate with respect to a first guide plate that is one guide plate. Is provided so as to be slidable, and in a state where the second guide plate is pulled out from the first guide plate, a latching portion formed on the first guide plate and a latch formed on the second guide plate. In the electronic device configured to engage with the stopper, the locked portion of the second guide plate is provided at a position away from the lower edge of the second guide plate by a predetermined distance. It is characterized by that.

  More specifically, the locked portion of the second guide plate is a portion where the second guide plate and the first guide plate overlap in a state where the second guide plate is pulled out from the first guide plate. Is provided at the center in the height direction (vertical direction). As an example, the predetermined distance is set to a distance equal to half the width in the height direction (vertical direction) of the overlapping portion.

  Thus, by providing the locked portion at the center in the height direction (vertical direction) of the portion where the second guide plate and the first guide plate overlap, the second guide plate pulled out to the full is provided in the first guide. When pushed down to be stored in the plate, as shown by the arrow P1 in FIGS. 14 (b) and 14 (c), the second guide plate 71 is pulled downward slightly to the front side (left side in the figure). When pushed, the upper edge 65 of the first guide plate 51 becomes the fulcrum a1, and the second guide plate 71 is slightly inclined toward the front side. As a result, since the second guide plate 71 below the fulcrum a1 moves slightly away from the back surface of the first guide plate 51, the second guide plate 71 located at a distance W1 / 2 from the fulcrum a1, for example. The locking projection 75A comes out of the upper locking recess 58 of the first guide plate 51 and the engagement is released. Accordingly, when the second guide plate 71 is subsequently pushed down, the second guide plate 71 smoothly slides downward with respect to the first guide plate 51.

  On the other hand, when the second guide plate pulled out to the full extent is pushed down to be accommodated in the first guide plate, the second guide plate 71 is slightly moved as shown by an arrow P2 in FIGS. 15 (b) and 15 (c). When pushed downward as being pushed to the back side (right side in the figure), the lower end edge 74 of the second guide plate 71 becomes the fulcrum a2, and the second guide plate 71 is slightly inclined to the back side. . That is, since the second guide plate 71 above the fulcrum a2 moves slightly away from the back surface of the first guide plate 51, the second guide plate located at a distance of W1 / 2 (= T31) from the fulcrum a2, for example. The locking projection 75A of 71 is released from the upper locking recess 58 of the first guide plate 51, and the engagement is released. Accordingly, when the second guide plate 71 is subsequently pushed down, the second guide plate 71 smoothly slides downward with respect to the first guide plate 51.

  That is, according to the slide mechanism and the lock mechanism structure of the present invention, when the second guide plate pulled out fully is pushed down to be stored in the first guide plate, the second guide plate is moved to the front side or the back side. Even when pushed down in the direction of, the second guide plate can be pushed down smoothly.

  Moreover, according to this invention, the engagement with the said latching | locking part and to-be-latched part is the engagement by uneven | corrugated shape. That is, when the locking part is concave, the locked part is convex, and when the locking part is convex, the locked part is concave. As described above, according to the present invention, the locking portion and the locked portion can be formed in any of the concave and convex shapes. On the other hand, in the conventional lock mechanism structure, since the locking projection which is the locked portion of the second guide plate is formed on the lower edge of the second guide plate, the locked portion is It cannot be formed as a recess.

  According to the present invention, the convex shape of the locking portion or the locked portion may be formed such that the corner portion of the protruding tip portion is an inclined portion such as an R surface or a C surface. By forming the inclined surface in this way, when the lock is released, the protruding tip portion of the convex portion which is the locking portion or the locked portion is easily removed when the convex portion is removed from the concave portion. The guide plate is pushed down smoothly.

  Further, according to the present invention, slide groove portions are formed along the height direction on both right and left side edges of the first guide plate, and guide rails are formed along the height direction on the left and right side edges of the second guide plate. The second guide plate is configured to be slidable in the vertical direction with respect to the first guide plate in a state where the guide rail portion is held in the slide groove portion.

  And in such a configuration, in the present invention, when the second guide plate is pushed down along the first guide plate from the state where the locking portion and the locked portion are engaged, The engagement is released when the second guide plate is slightly bent (deformed into a curved shape) with the guide rail portion held in the slide groove portion as a support portion. That is, when the second guide plate 71 is pushed downward, the engagement is more reliably released by bending the second guide plate in addition to the inclination of the second guide plate.

  Therefore, in the present invention, in consideration of the bending of the second guide plate, the locked portion is provided in the center portion in the width direction of the second guide plate. That is, by providing the locked portion away from the guide rail portion, it is possible to release the engagement between the locking portion and the locked portion even if the second guide plate is slightly bent. . Moreover, in this invention, such a to-be-latched part is provided in two or more places along the width direction. By providing at two or more locations, it is possible to prevent rattling of the second guide plate during engagement.

  Since the present invention is configured as described above, when the second guide plate pulled out to the full is pushed down to be stored in the first guide plate, the second guide plate is pushed in either the front side or the back side. Even when pushed down in this way, the second guide plate can be pushed down smoothly. Therefore, the user can operate the guide plate without worrying about the direction of operation when storing the guide plate.

It is the external view which looked at the small facsimile apparatus which has a locking mechanism part from the front side, and has shown the state at the time of unused which closed the opening-and-closing lid. It is the external view which looked at the small facsimile apparatus which has a lock mechanism part from the front side, and has shown the state which opened and closed the lid. It is the external view which looked at the small facsimile apparatus which has a lock mechanism part from the front side, and has shown the state which pulled out the guide plate from the opened opening-closing lid. 1 is a schematic cross-sectional view of a state in which a lid is closed in a facsimile apparatus according to an embodiment. 1 is a schematic cross-sectional view showing a state in which an opening / closing lid is opened in a facsimile apparatus according to an embodiment. It is the perspective view which decomposed | disassembled seeing the opening-and-closing lid, the 1st guide plate, and the 2nd guide plate from the front side. It is an enlarged view of Q1 part of Drawing 6A. It is the perspective view which decomposed | disassembled the 1st guide plate and the 2nd guide plate seeing from the back surface side. It is an enlarged view of Q2 part of Drawing 7A. It is a front view which shows the state which accommodated the 2nd guide plate and the 1st guide plate in the inner surface of the opening-and-closing lid. It is a front view which shows the state which pulled out the 1st guide plate and the 2nd guide plate to the full from the opening-and-closing lid. It is a back view which shows the state which pulled out the 2nd guide plate to the full from the 1st guide plate. It is the DD sectional view taken on the line of FIG. It is an enlarged view of Q3 part of Drawing 11A. It is the EE sectional view taken on the line of FIG. It is an enlarged view of Q4 part of Drawing 12A. It is the FF sectional view taken on the line of FIG. It is the GG sectional view taken on the line of FIG. It is an enlarged view of Q5 part of Drawing 13A. It is an enlarged view of Q6 part of Drawing 13A. (A)-(e) is explanatory drawing which shows the operation | movement process at the time of pushing down so that this 2nd guide plate may be pulled to the near side when pushing down a 2nd guide plate. (A)-(e) is explanatory drawing which shows the process of an operation | movement at the time of pushing down so that this 2nd guide plate may be pushed in a back | inner side slightly when pushing down a 2nd guide plate. It is explanatory drawing (sectional drawing) which shows a mode that a 2nd guide plate bends at the time of pushing down. It is a partially expanded sectional view which shows the other Example of the protrusion part for latching. FIG. 6 is an exploded perspective view showing a first guide plate and a second guide plate in a conventional facsimile apparatus. FIG. 18B is an enlarged view of a portion Q11 in FIG. 18A in the conventional facsimile apparatus. In the conventional facsimile apparatus, it is a front view which shows the state which accommodated the 2nd guide plate in the 1st guide plate. In the conventional facsimile apparatus, it is a front view which shows the state which pulled out the 2nd guide plate to the full from the 1st guide plate. It is the HH sectional view taken on the line of FIG. It is the II sectional view taken on the line of FIG. It is the JJ sectional view taken on the line of FIG. It is explanatory drawing which shows operation | movement at the time of pushing down so that this 2nd guide plate may be pulled a little front side when pushing down a 2nd guide plate. It is explanatory drawing which shows the operation | movement at the time of pushing down so that this 2nd guide plate may be pushed to the back side a little when pushing down a 2nd guide plate. It is explanatory drawing (sectional drawing) which shows a mode that a 2nd guide plate bends, when a 2nd guide plate is pushed down. It is explanatory drawing which shows the structure of the paper feed tray which concerns on patent document 1 in which the 2nd guide plate was provided so that sliding movement was possible with respect to the 1st guide plate.

  Embodiments of the present invention will be described below with reference to the drawings. In addition, the following embodiment is an example which actualized this invention, Comprising: The thing of the character which limits the technical scope of this invention is not.

  In the present embodiment, a case where the electronic apparatus of the present invention is applied to a small facsimile machine will be described.

  The external appearance of the facsimile apparatus of this embodiment is as shown in FIGS. 1 to 3, and the configurations of the first slide plate 51 and the second slide plate 71 are almost the same as the configurations described in the prior art. Have the same configuration. Accordingly, in the following description, the same members and the same parts as those of the conventional constituent members will be denoted by the same reference numerals, and the facsimile apparatus of this embodiment will be described.

<Description of overall configuration of facsimile apparatus>
4 and 5 are schematic cross-sectional views of the facsimile apparatus according to the present embodiment having the external configuration shown in FIGS. 1 to 3. FIG. 4 shows a state in which the opening / closing lid 30 is closed, and FIG. Shows the state.

  The facsimile apparatus includes an apparatus housing 10 and an operation panel unit 20 and an opening / closing lid 30 provided on the upper surface of the apparatus housing 10.

  The apparatus housing 10 passes through an image reading unit 100 that reads an image of a document, a document transport path 101 that transports the document to the image reading unit 100, an image forming unit 110 that forms an image on a sheet, and an image forming unit 110. A paper conveyance path 111 for conveying the paper is incorporated.

  The apparatus housing 10 is provided with an opening 12 on the rear side of the upper surface, and an opening / closing lid 30 is attached so as to close the opening 12. The opening / closing lid 30 can be opened / closed around the rotation shaft 39 between a closing position (see FIG. 4) for closing the opening 12 and an opening position (see FIG. 5) for opening the opening 12. . The rotation shaft 39 is disposed on the rear side (the right end side in the drawing) of the opening 12. Details of the lid member 30 will be described later.

  The document transport path 101 includes a document insertion port 102 that opens to the front side in the opening 12 and a document discharge port 103 that opens to the front surface of the apparatus housing 10. A document transport roller 104 and a separation rubber plate 105 are disposed in the middle of the document transport path 101. The document conveying roller 104 and the separation rubber plate 105 are disposed so as to face each other. Documents inserted from the document insertion slot 102 are separated one by one between the document conveyance roller 104 and the separation rubber plate 105, and only the lowermost document is conveyed toward the document discharge port 103. The

  An image sensor 106 and a back roller 107 constituting the image reading unit 100 are arranged on the downstream side of the document conveying roller 104. The image sensor 106 and the back roller 107 are disposed so as to face each other.

  The document inserted from the document insertion slot 102 is sent between the image sensor 106 and the back roller 107 by the document transport roller 104. The fed document is conveyed while being pressed against the image sensor 106 from the back by the back roller 107, and the image is read by the image sensor 106. The document whose image has been read is discharged from the document discharge port 103 to the outside of the apparatus housing 10 by the back roller 107.

  On the other hand, the paper transport path 111 is formed in a substantially U shape, and a paper insertion port 112 is disposed on the rear side in the opening 12, and a paper discharge port 113 is disposed in a substantially central portion in the opening 12. Yes.

  A separation pad 114 and a paper feed roller 115 are disposed in the paper conveyance path 111 near the paper insertion slot 112 so as to face each other.

  As shown in FIG. 5, the sheets are inserted into the sheet insertion slot 112 in a stacked state, and are stored with the leading end abutting against the separation pad 114. When the paper feed roller 115 rotates, the paper feed roller 115 and the separation pad 114 transport only one sheet closest to the paper feed roller 115 toward the paper discharge port 113 in the paper transport path 111. .

  A platen roller 116 and a thermal head 117 constituting the image forming unit 110 are disposed on the downstream side of the paper feed roller 115 so as to face each other. An ink film 118 is disposed between the platen roller 116 and the thermal head 117. The ink film 118 is fed in the same direction as the paper transport direction in accordance with the paper transport speed by the supply roller 121 and the take-up roller 122 that supply the ink film 118.

  A paper discharge roller 119 is disposed on the downstream side of the platen roller 116. The paper discharge roller 119 discharges the paper upward from the paper discharge port 113.

  The paper inserted from the paper insertion slot 112 is fed between the platen roller 116 and the ink film 118, and the ink on the ink film 118 is thermally transferred based on the image information by the thermal head 117, thereby forming an image on the paper. The The sheet on which the image is formed is discharged from the sheet discharge port 113 by the downstream sheet discharge roller 119.

  The opening / closing lid 30 is disposed in the open position as shown in FIG. 5 when using a facsimile apparatus that performs image reading operation or image forming operation, and when not used when the image reading operation or image forming operation is not performed, as shown in FIG. As shown in FIG.

<Description of Slide Mechanism and Lock Mechanism Structure According to the Present Invention>
The opening / closing lid 30 having the above-described configuration is provided with a first guide plate 51 and a second guide plate 71 on the inner surface side (the surface facing the front side when opened and raised). The first guide plate 51 is provided to be slidable with respect to the opening / closing lid 30, and the second guide plate 71 is provided to be slidable with respect to the first guide plate 51.

  6A is an exploded perspective view showing the opening / closing lid 30, the first guide plate 51, and the second guide plate 71, FIG. 6B is an enlarged view of the Q1 portion of FIG. 6A, and FIG. 7A is the first guide plate 51. It is a perspective view which decomposes | disassembles and shows the 2nd guide plate 71. FIG. However, FIG. 7A is an exploded perspective view seen from the back side opposite to FIG. 6A. 7B is an enlarged view of the Q2 portion of FIG. 7A, FIG. 8 is a front view showing a state in which the second guide plate 71 and the first guide plate 51 are accommodated on the inner surface of the opening / closing lid 30, and FIG. FIG. 10 is a front view showing a state in which the first guide plate 51 and the second guide plate 71 are fully pulled out from the lid 30, and FIG. 10 is a rear view showing a state in which the second guide plate 71 is fully pulled out from the first guide plate 51. 11A is a cross-sectional view taken along the line DD of FIG. 8, FIG. 11B is an enlarged view of the Q3 portion of FIG. 11A, FIG. 12A is a cross-sectional view taken along the line EE of FIG. FIG. 12C is an FF line cross-sectional view of FIG. 8, FIG. 13A is a GG line cross-sectional view of FIG. 9, FIG. 13B is an enlarged view of Q5 part of FIG. 13A, and FIG. FIG. 13B is an enlarged view of a portion Q6 in FIG. 13A.

(1) Description of the opening / closing lid 30 As shown mainly in FIGS. 6A and 7A, the inner surface of the opening / closing lid 30 is closer to the inner side (inner surface central portion) by a predetermined distance T11 from both ends in the width direction X. A pair of guide groove portions 31, 31 are provided with a distance T12 substantially equal to the lateral width W12 of the first guide plate 51. The guide groove portions 31, 31 are rail-like groove portions arranged in parallel along the vertical direction Y of the opening / closing lid 30, and are perpendicular to the inner surface of the opening / closing lid 30 as shown in FIGS. 11A and 11B. The support piece 32 rises, and a rail holding piece 33 extending substantially horizontally from the upper end portion of the support piece 32 toward the center portion of the opening / closing lid 30.

  Further, the upper end portion (upper end portion in the vertical direction Y) of the rail holding piece 33 is a protruding piece 34 that further extends toward the center portion of the opening / closing lid 30. The protruding piece 34 serves as a stopper piece when a first guide plate 51 described later is fully pulled out from the opening / closing lid 30.

  Further, when the first guide plate 51 described later is pushed into the inner surface lower portion of the opening / closing lid 30 to a position further inside the guide groove portions 31 and 31 by a predetermined distance T13 until the inner wall of the opening / closing lid 30 is fully inserted, A pair of locking recesses 35 for locking the first guide plate 51 is provided in the width direction with a constant distance T14. In addition, when the first guide plate 51 to be described later is fully pulled out from the inner surface of the opening / closing lid 30 to the upper position on the inner surface of the opening / closing lid 30, the first guide plate 51, which will be described later, is fully inward from the guide groove portions 31, 31 by a predetermined distance T 13. A pair of locking projections 36 and 36 for locking the guide plate 51 is also provided in the width direction with a constant distance T14. That is, the locking concave portion 35 and the locking convex portion 36 are formed at the same position in the vertical direction Y.

(2) Description of the first guide plate 51 As shown mainly in FIGS. 6A and 7A, the first guide plate 51 is a substantially rectangular plate-like member, and an opening / closing lid is provided on the left and right side edges thereof. First holding pieces 54 and 54 for holding the rail holding piece 33 of the guide groove portion 31 formed in 30 from the outside are formed. Then, as shown in the enlarged cross-sectional view of FIG. 11B, the standing piece 53 is formed from the base end portion (end portion near the center) of the first holding piece 54 toward the back surface side (that is, the inner surface side of the opening / closing lid 30). A guide rail piece 52 is formed in the central portion on the outer surface side of the upright piece 53 in parallel with the first holding piece 54. The guide rail piece 52 is inserted between the guide groove portions 31 and 31 so as to be slidable, while being held between the inner surface of the opening / closing lid 30 and the rail holding piece 33 of the guide groove portion 31. In addition, the guide rail piece 52 and the first holding piece 54 hold the rail holding piece 33 of the guide groove 31 provided in the opening / closing lid 30 from both sides. As shown in FIG. 6A, the lower side of the first holding piece 54 is notched, and the guide rail piece 52 is exposed when viewed from the front side.

  In addition, a first contact piece 61 having a shape that spreads upward in a wedge shape is formed in a portion exposed from the first holding piece 54 at a lower portion of the guide rail piece 52. As shown in FIG. 9, the first abutting piece 61 abuts on the protruding piece 34 formed on the upper end portion of the rail holding piece 33 of the opening / closing lid 30 when the first guide plate 51 is pulled out to the full extent. Thus, the first guide plate 51 is a restricting member that restricts the first guide plate 51 from being removed from the opening / closing lid 30.

  On the other hand, as shown in FIG. 7A, a second holding piece 55 extending substantially horizontally toward the central portion of the first guide plate 51 is formed on the inner side surface of the standing piece 53. At the upper end portion of the holding piece 55 (upper end portion in the vertical direction Y shown in FIG. 7A), a protruding piece 56 extending further toward the center portion of the first guide plate 51 is formed. The protruding piece 56 serves as a stopper piece when a second guide plate 71 described later is pulled out to the full. That is, the distance T22 between the upstanding pieces 53 and 53 facing each other is substantially equal to the width W21 of the second guide plate 71.

  Further, a second guide plate 71 (to be described later) is provided on the inner surface upper portion of the first guide plate 51 at a position further inside by a predetermined distance T23 from the standing pieces 53 and 53, mainly as shown in FIG. 7A. When pulled out from the plate 51 to the full, a pair of upper locking recesses 58, 58 for locking the second guide plate 71 is provided in the width direction with a constant distance T24. In addition, when the second guide plate 71 described later is pushed into the first guide plate 51 fully into the lower portion of the inner surface of the first guide plate 51 at the same position from the upright pieces 53 and 53 by a predetermined distance T23. A pair of lower locking recesses 59, 59 for locking the second guide plate 71 is also provided in the width direction at a constant distance T24.

  The constant distance T24 needs to be set in consideration of a semicircular cutout portion 65 formed at the center of the upper end of the first guide plate 51. That is, the constant distance T24 needs to be set to a width that is slightly wider than the width of the notch 65. Incidentally, the notch 65 is provided to make it easier to put a finger when the second guide plate 71 is pulled out.

  Further, a guide plate member for locking and fixing the first guide plate 51 to the inner surface of the opening / closing lid 30 is provided at the lower part of the inner surface of the first guide plate 51 outside the pair of lower locking recesses 59 and 59. A pair of stop projections 63 are provided in the width direction with a certain distance T25.

  When the first guide plate 51 is fully pulled out from the opening / closing lid 30, the guide plate locking projection 63 has a locking projection 36 provided on the opening / closing lid 30 as shown in the enlarged view of FIG. 13C. As shown in the enlarged view of FIG. 12B, when the first guide plate 51 is locked and fixed in the pulled-out position and fully pushed into the opening / closing lid 30, the opening / closing lid 30 is moved. The first guide plate 51 is locked and fixed at the position where the first guide plate 51 is pressed. That is, the distance between the pair of locking recesses 35 formed at the lower inner surface of the opening / closing lid 30 and the distance between the pair of locking protrusions 36 formed at the upper inner surface of the opening / closing lid 30. The fixed distance T14 and the fixed distance T25 that is the distance between the pair of guide plate locking projections 63, 63 provided at the lower inner surface of the first guide plate 51 are the same distance.

(3) Description of Second Guide Plate 71 As shown mainly in FIGS. 6A and 7A, the second guide plate 71 is a substantially rectangular plate-like member, and is provided in the vertical direction Y at the left and right side edges. Guide rail portions 72 and 72 extending along the line are respectively formed. As shown in the enlarged view of FIG. 11B, the guide rail portion 72 is a saddle-shaped slide groove portion 57 formed by a standing piece 53 and a second holding piece 55 arranged on the left and right sides of the first guide plate 51. The slide groove portion 57 is slidably moved in the vertical direction.

  Further, as shown in the enlarged views of FIGS. 7A and 7B, a second contact piece 73 having a shape that spreads upward in a wedge shape is formed at the lower part of the back surface side of the guide rail portion 72. As shown in FIG. 10, the second abutment piece 73 is a protrusion formed on the second holding piece 55 of the first guide plate 51 when the second guide plate 71 is fully pulled out from the first guide plate 51. The second guide plate 71 is a regulating member that regulates the second guide plate 71 from coming out of the first guide plate 51 by the second abutment piece 73 coming into contact with the piece 56.

  Further, a position that is spaced upward by a predetermined distance T31 from the lower end edge 74 on the front side of the second guide plate 71 (see FIG. 6A), and is a position that is inside by a predetermined distance T32 from both ends of the second guide plate 71, respectively. Further, a pair of locking projections 75A and 75A are provided in the lateral direction with a constant distance T33. When the second guide plate 71 is fully pulled out from the first guide plate 51, the locking projection 75A engages with the upper locking recess 58 of the first guide plate 51, and the second guide plate 71 is When fully pushed into the first guide plate 51, it engages with the lower locking recess 59 of the first guide plate 51. That is, the distance between the pair of upper locking recesses 58 and 58 formed in the first guide plate 51 and the distance between the pair of lower locking recesses 59 and 59 formed in the first guide plate 51. The fixed distance T24 and the fixed distance T33 that is the distance between the pair of locking projections 75A and 75A formed on the second guide plate 71 are the same distance.

  In the above configuration, the first guide plate 51 and the second guide plate 71 are configured such that the guide rail portion 72 of the second guide plate 71 is inserted into the slide groove portion 57 of the first guide plate 51 as shown in FIGS. 11A and 11B. For this reason, the slide groove portion 57 is arranged in a substantially close contact state in which both left and right end portions are supported. Therefore, when the locking projection 75A of the second guide plate 71 is in contact with the back surface of the first guide plate 51 (that is, engaged with the upper locking recess 58 and the lower locking recess 59). 2), the second guide plate 71 is slightly bent (elastically deformed) using both the slide groove portions 57 and 57 as both support portions b1 and b1, and this slight deflection always makes contact with the back surface of the first guide plate 51. The contact is made in a contacted state (contacted with some pressure). Therefore, when the positions of the locking projection 75A and the upper locking recess 58 or the lower locking recess 59 match, the locking projection 75A is locked by the elastic restoring force of the second guide plate 71. It fits into the concave portion 58 for use or the concave portion 59 for locking the lower side.

  In addition, in the upper end center part of the second guide plate 71 corresponding to the notch part 65 formed in the upper end center part of the first guide plate 51, a knob part for picking and pulling out the second guide plate 71 with a finger. 78 is provided.

  The above is the description of the specific shapes of the opening / closing lid 30, the first guide plate 51, and the second guide plate 71. Of the first guide plate 51 and the second guide plate 71, the portions related to the present invention. The dimensional relationship will be specifically described. In the present embodiment, as shown in FIG. 7A, the upper guide member 53 is engaged with the width W21 of the second guide plate 71 (that is, the distance T22 between the rising sides 53, 53) from the upright piece 53 of the first guide plate 51. The distance T23 to the concave recess 58 or the lower locking recess 59 (that is, the distance T32 from the end of the second guide plate 71 to the locking projection 75A) is 3 × T23 (T32) ≈T22 (W21 ) To satisfy the relationship. Further, the distance T31 from the lower end edge 74 of the second guide plate 71 to the locking projection 75A is equal to the width W1 in the height direction of the portion where the first guide plate 51 and the second guide plate 71 overlap. As described above, the relationship of T31≈W1 / 2 is satisfied, and the protrusion length (T34) of the locking protrusion 75A is set to satisfy the relationship of T34 <W1. By setting the arrangement and shape of the locking protrusion 75A, the upper locking recess 58, and the lower locking recess 59 so as to satisfy this dimensional relationship, the second guide relative to the first guide plate 51 described later is set. During the sliding operation, locking operation, and unlocking operation of the guide plate 71, the engagement projection 75A and the upper engagement recess 58 can be smoothly engaged / released by the inclination or bending of the second guide plate 71. It becomes possible.

<Description of Slide Operation, Lock Operation, and Unlock Operation of First Guide Plate 51 and Second Guide Plate 71>
Next, the sliding operation, locking operation, and unlocking operation of each guide plate 51, 71 when the first guide plate 51 and the second guide plate 71 are pulled out from the open / close lid 30 in the open state will be described.

  In a state before the slide plates 51 and 71 are pulled out from the opening / closing lid 30, the locking projection 63 of the first guide plate 51 is used to lock the opening / closing lid 30 as shown in FIGS. The first guide plate 51 is housed on the inner surface of the opening / closing lid 30 in the state of being fitted into the recess 35 and being locked (see FIG. 12B), and the locking projection 75A of the second guide plate 71 is The second guide plate 71 fits into the lower locking recess 59 of the first guide plate 51 (see FIG. 12C), and the second guide plate 71 is connected to the back surface of the first guide plate 51 and the inner surface of the opening / closing lid 30. It is stored between.

  From this state, when holding the knob 78 of the second guide plate 71 and pulling it upward, the locking projection 75A of the second guide plate 71 is disengaged from the lower locking recess 59 of the first guide plate 51. Then, it slides upward while being in contact with the back surface of the first guide plate 51. Then, when the second guide plate 71 is fully pulled upward, the locking projection 75A of the second guide plate 71 is fitted into the upper locking recess 58 of the first guide plate 51 as shown in FIG. The second guide plate 71 does not come out of the first guide plate 51 by the second contact piece 73 of the second guide plate 71 coming into contact with the protruding piece 56 of the first guide plate 51. To be regulated. That is, by defining the contact position between the projection piece 56 and the second contact piece 73, the first guide plate 51 and the second guide plate 51 when the second guide plate 71 is fully pulled out from the first guide plate 51. The width W1 in the height direction (vertical direction) of the portion where the guide plate 71 overlaps can be determined. The width W1 of the overlapping portion is such a width that the second guide plate 71 can be stably held when the second guide plate 71 is pulled out to the full extent (or such that the user who uses the device does not feel rattling). Width).

  Here, as described above, the locking protrusion 75A of the second guide plate 71 is provided at a position away from the lower edge 74 by a predetermined distance T31. In the present embodiment, the predetermined distance T31 is a distance ½ of the width W1 in the height direction (vertical direction) of the portion where the first guide plate 51 and the second guide plate 71 overlap. That is, the locking protrusion 75A and the upper locking recess 58 are provided at substantially the center in the height direction of the portion where the first guide plate 51 and the second guide plate 71 overlap. However, the height-forming positions (predetermined distance T31) of the locking protrusion 75A and the upper locking recess 58 do not necessarily have to be exactly ½ of the width W1 of the overlapping portion in the height direction. It may be slightly above or slightly below. In short, it is only necessary that the extended portion of the second guide plate 71 has a certain length below the locking projection 75A.

  Next, when holding the knob 78 of the second guide plate 71 and pulling it upward further from this state, the guide plate locking projection 63 of the first guide plate 51 is now used to lock the opening / closing lid 30. It slides upward while coming out of the recess 35 and in contact with the inner surface of the opening / closing lid 30. When the first guide plate 51 is pulled out fully, the guide plate locking projection 63 of the first guide plate 51 is used to lock the opening / closing lid 30 as shown in the enlarged views of FIGS. By climbing over the convex portion 36, the first guide plate 51 is locked and fixed at the pulled-out position. As a result, the drawn-out guide plates 51 and 71 are held in the state shown in FIGS. 9 and 13A.

  In the above description, when the guide plates 51 and 71 are pulled out from the opening / closing lid 30 by holding the knob portion 78 of the second guide plate 71, the second guide plate 71 is first pulled out, and then the first guide is next pulled out. Although the description has been made so that the plate 51 is pulled out, this is only described in the order of such operations for convenience of description, and these pulling operations are not necessarily performed individually. That is, the first guide plate 51 and the second guide plate 71 may be pulled out at the same time or in conjunction with each other depending on the force adjustment and pulling direction when pulling out, the pulling timing, and the like. There is a case where the second guide plate 71 is pulled out after being pulled out first.

  In order to store the guide plates 51 and 71 in the opening / closing lid 30 from the state where the first guide plate 51 and the second guide plate 71 are pulled out to the full extent, the upper end portion of the second guide plate 71 is Just hold it down and push it down. As a result, the first guide plate 51 and the second guide plate 71 are slightly bent and the respective engagements are released, and the respective guide plates 51 and 71 are stored in the state shown in FIG. .

  Here, with reference to FIG. 14 to FIG. 16, the operation when the upper end portion of the second guide plate 71 is pushed downward from the state where the first guide plate 51 and the second guide plate 71 are fully pulled out. This will be specifically described. However, FIGS. 14A to 14E are explanatory views showing an operation process when the second guide plate 71 is pushed down by being pulled slightly toward the front side when being pushed down, and FIGS. 15A to 15E. FIG. 16 is an explanatory view showing an operation process when the second guide plate 71 is pushed down slightly to push it down, and FIG. 16 is a sectional view showing how the second guide plate 71 bends when pushed down. It is.

  When the second guide plate (FIG. 14 (a)) pulled out to the full is pushed down to be accommodated in the first guide plate, the second guide plate 71 is moved as shown by an arrow P1 in FIG. 14 (b). When pushed downward by pulling slightly toward the front side, the upper edge 65 of the first guide plate 51 becomes the fulcrum a1, and the second guide plate 71 is slightly inclined toward the front side (left side in the figure). become. At this time, as shown in FIG. 16, the portions of the guide rail portions 72, 72 on the left and right sides of the second guide plate 71 respectively held in the slide groove portions 57, 57 on the left and right sides of the first guide plate 51 are the support portions b1. Thus, the second guide plate 71 is slightly bent (curved state). As a result, the second guide plate 71 below the fulcrum a1 becomes the first guide plate 51 due to the interaction between the inclination of the second guide plate 71 (FIG. 14B) and the bending (FIG. 16). As shown in FIG. 14C, the locking protrusion 75A of the second guide plate 71 located below the fulcrum a1 by a distance of W1 / 2 is formed on the first guide plate 51. And the engagement is released. Thus, when the second guide plate 71 is subsequently pushed down, the second guide plate 71 is in a state in which the locking projection 75A is in contact with the back surface of the first guide plate 51, as shown in FIG. The sliding projection 75A of the second guide plate 71 finally moves to the lower locking recess 59 of the first guide plate 51, as shown in FIG. 14 (e). It will fit in and be fixed.

  On the other hand, when the second guide plate (FIG. 15 (a)) pulled out to the full is pushed down to be accommodated in the first guide plate, the second guide plate is indicated by an arrow P2 in FIG. 15 (b). When 71 is pushed downward slightly, the lower edge 74 of the second guide plate 71 becomes a fulcrum a2, and the second guide plate 71 is slightly inclined to the back side (right side in the figure). Will do. Also at this time, as shown in FIG. 16, the portions of the guide rail portions 72, 72 on the left and right sides of the second guide plate 71 respectively held in the slide groove portions 57, 57 on the left and right sides of the first guide plate 51 are the support portions. b1 and the second guide plate 71 is slightly bent (curved state). As a result, the second guide plate 71 above the fulcrum a <b> 2 is moved by the interaction between the inclination (FIG. 15B) and the deflection (FIG. 16) of the second guide plate 71. As shown in FIG. 15C, the locking projection 75A of the second guide plate 71 located above the fulcrum a2 by a predetermined distance T31 is moved upwardly from the back surface of the first guide plate 51, as shown in FIG. The engagement is released by slipping out of the stop recess 58. Thus, when the second guide plate 71 is subsequently pushed down, the second guide plate 71 is in a state in which the locking projection 75A is in contact with the back surface of the first guide plate 51, as shown in FIG. The sliding projection 75A of the second guide plate 71 finally moves to the lower locking recess 59 of the first guide plate 51, as shown in FIG. 15 (e). It will fit in and be fixed.

  That is, according to the electronic apparatus of the present invention, when the second guide plate pulled out to the full is pushed down to be accommodated in the first guide plate, the second guide plate is pushed in either the front side or the back side. Thus, even when pushed down, the second guide plate can be pushed down smoothly.

  FIG. 17 shows another embodiment of the locking projection 75A. In the above-described embodiment, the locking projection 75A has a horizontally long rectangular parallelepiped shape as shown in FIG. 6A and FIG. Therefore, when the locking projection 75A is pulled out from the upper locking recess 58 (the same applies to the lower locking recess 59), the corners of each side on the tip side of the locking projection 75A are locked upward. There is a case where it is difficult to release the engagement by hitting the corner edge of the opening of the recess 58 for use. Therefore, in this embodiment, as shown in FIG. 17, each side on the tip side of the locking projection 75A and each corner where each side intersects are all formed on an inclined surface 75A1 cut into a C surface or an R surface. May be. As a result, when the locking projection 75A comes to the point just before it comes out of the upper locking recess 58, the inclined surface 75A1 formed at each corner slides the corner of the opening of the upper locking recess 58. Since it slips through, the engagement is released more smoothly. As a result, the second guide plate 71 is pushed down smoothly.

  In the above embodiment, the locking portion formed on the first guide plate 51 is the upper locking recess 58 and the lower locking recess 59, and the locked portion formed on the second guide plate 71 is locked. Although the projecting portion 75A is used, the concave portion and the convex portion may be opposite to each other. That is, as the locking portions formed on the first guide plate 51, the upper locking projections having the same shape as the locking projections 75A are located at the positions of the upper locking recess 58 and the lower locking recess 59. The lower locking recess 58 or the lower locking recess is formed at the position of the locking protrusion 75A as a locked portion formed on the second guide plate 71. A locking recess having the same shape as 59 may be formed. As described above, even when the concave portion and the convex portion are formed opposite to each other, smooth push-down can be realized when the second guide plate 71 is pushed down as described above.

  In the above-described embodiment, the slide mechanism and the lock mechanism between the first guide plate 51 and the second guide plate 71 are described. However, the slide mechanism and the lock mechanism include the opening / closing lid 30 and the first guide. The present invention can also be applied to a slide mechanism and a lock mechanism between the plate 51.

  Moreover, although the said embodiment demonstrated the case where the number of guide plates is two, even when it has three or more guide plates, the slide mechanism of this invention between two guide plates adjacent to the front and back. It is possible to apply a locking mechanism.

  Furthermore, in the above embodiment, the case where the electronic apparatus of the present invention is applied to a facsimile apparatus is described. However, the present invention is not limited to such a facsimile apparatus. The present invention can be applied to all electronic devices having a paper feed tray that is used by being placed (or obliquely).

  The present invention is not limited to electronic apparatuses such as a facsimile machine, a copying machine, and a scanner, but can be used in all apparatuses having a paper feed tray provided so that a plurality of guide plates can be pulled out and retracted.

DESCRIPTION OF SYMBOLS 10 Device housing | casing 12 Opening part 20 Operation panel 20a Display part 20b Operation button part 30 Opening / closing lid 31 Guide groove part 32 Support piece 33 Rail holding piece 34 Protrusion piece 35 Locking recessed part 36 Locking convex part 39 Rotating shaft 51 1st 1 Guide plate 52 Guide rail piece 53 Standing piece 54 First holding piece 55 Second holding piece 56 Projection piece 58 Upper locking recess 59 Lower locking recess 60 Notch 61 First contact piece 63 Guide plate engagement Stop projection 65 Notch 71 Second guide plate 72 Guide rail portion 73 Second contact piece 75A Locking projection 100 Image reading unit 101 Document conveyance path 102 Document insertion port 103 Document discharge port 104 Document conveyance roller 105 Separation rubber plate 106 Image sensor 107 Back roller 110 Image forming unit 111 Paper transport path 112 Paper insertion port 113 Paper discharge port 1 14 Separation Pad 115 Paper Feed Roller 116 Platen Roller 117 Thermal Head 118 Ink Film 121 Supply Roller 122 Winding Roller

Claims (9)

A plurality of guide plates for holding paper; a second guide plate, which is another guide plate, is slidably provided with respect to the first guide plate, which is one guide plate; An electronic device configured to engage a locking portion formed on the first guide plate and a locked portion formed on the second guide plate in a state of being pulled out from the first guide plate. In
The electronic device according to claim 1, wherein the locked portion of the second guide plate is provided at a position away from the lower edge of the second guide plate by a predetermined distance. The electronic device according to claim 1,
The locked portion of the second guide plate is the center in the height direction of the portion where the second guide plate and the first guide plate overlap with the second guide plate pulled out from the first guide plate. An electronic device is provided in the unit. The electronic device according to claim 2.
The electronic device according to claim 1, wherein the predetermined distance is a distance equal to a half of a width in a height direction (vertical direction) of the overlapping portion. The electronic device according to any one of claims 1 to 3,
The electronic device according to claim 1, wherein the engagement between the locking portion and the locked portion is an uneven shape. The electronic device according to claim 4.
An electronic device, wherein a corner portion of the convex protruding tip portion is formed in an inclined portion. The electronic device according to any one of claims 1 to 5,
Slide groove portions are formed in the left and right side edges of the first guide plate along the height direction, and guide rail portions are formed in the left and right side edges of the second guide plate along the height direction. The electronic device is characterized in that the second guide plate is slidable in the vertical direction with respect to the first guide plate in a state where the guide rail portion is held on the electronic device. The electronic device according to claim 6.
When the second guide plate is pushed down along the first guide plate from the state in which the locking portion and the locked portion are engaged, the second guide plate is bent to cause the engagement. Is released. The electronic device according to claim 6 or 7,
The electronic device according to claim 1, wherein the locked portion of the second guide plate is provided at a center portion in the width direction of the second guide plate. The electronic device according to claim 8.
2. The electronic device according to claim 1, wherein the locked portion is provided at two or more locations along the width direction.

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