JP2011170002A - Display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a display device which is easy to use, and in which there is less risk of being damaged by a user. <P>SOLUTION: The display device includes: a display panel 21 having a display surface;, a case 22 holding the display panel 21; a rachet mechanism; a button 26 for releasing the rachet mechanism; and link mechanism releasing the rachet mechanism linking with push operation of the button 26. The case 22 is attached to its body 10 in a freely rotatable manner. The button 26 is provided at a rotating chip of the case 22 in which a display surface of the display panel 21 is exposed side. The button 26 is provided at the case 22 so as to allow push-operation in the rotating direction. By having the push direction of the button 26a and the rotation direction coincide, release of the rachet mechanism and change in a display angle can be performed with only a push operation, and thereby enhancing the useability. Also, since a button 26 is provided at the tip of rotation, the user is urged to push the button 26, and a risk of damages due to the user is reduced. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a display device capable of changing a display angle by rotating.

  2. Description of the Related Art Conventionally, there is a panel-like display device that is rotatably attached to a main body of an image recording apparatus such as a so-called multifunction machine having a printer, a scan function, a copy function, and a print function and can change a display angle. Is provided. Some display devices of this type include a holding mechanism that holds the display device after changing the display angle, and an operation unit for releasing the holding mechanism. The user pushes or slides the operation unit to release the holding of the display device, and rotates the display device.

  The holding mechanism that holds the display device includes, for example, a gear and a gear stopper, and one of the gear and the stopper stops the rotation of the other, and a frictional force is generated between the display device and the display device. Some hold display devices.

  For example, when a ratchet mechanism is used, one of the gear and the stopper is attached to the display device, the other is attached to the main body of the device, and one of the gear and the stopper can release the ratchet mechanism. Therefore, the display device or the main body is attached so that the posture can be changed between an engagement posture engaging with the other and a non-engagement posture not engaging with the other. The gear or stopper capable of changing the posture is configured to be linked to the operation portion by a link mechanism, and the posture is changed from the engagement posture to the non-engagement posture when the operation portion is operated.

  In this type of display device, there is a type in which an operation unit is provided in the display unit and a type in which the operation unit is provided in a main body of the device. Japanese Patent Application Laid-Open No. 2004-151561 describes a technique in which the operation unit is provided on the operation panel, although it is a technique related to the operation panel instead of the display device. The operation panel is provided on one of the left and right side surfaces where one of the pair of buttons as the operation unit intersects the display surface of the operation panel. When changing the display angle, the user applies a finger to the button and grasps the operation panel to release the holding mechanism, and rotates the operation panel while holding the operation panel.

  When the technique described in Patent Document 1 is used for a display device, when the display angle of the display device is changed, the operation of releasing the holding of the display device and the operation of rotating the display device are grasped and rotated. Thus, a display device that can be performed as a series of operations can be realized. Therefore, in the display device using the technique described in Patent Document 1, it takes time to change the display angle compared to a display device configured to rotate the display device after the operation unit is provided in the main body and the operation unit is operated. There are few and is convenient.

Japanese Patent Laid-Open No. 5-114281

  In the display device using the technique described in Patent Document 1, since the operation unit is provided on the side surface intersecting the display surface, it is difficult for the user to visually recognize the operation unit, and it is mistakenly regarded as a display device that does not require holding release. Or the user may forget to release the holding mechanism. If the user applies force to the display device in an attempt to rotate the display device without releasing the holding mechanism, the display device may be damaged.

  In the display device in which the operation unit is provided in the main body, the user can easily see the operation unit, but the usability is deteriorated. In addition, the user may forget to release the holding mechanism or the user may not recognize that the operation unit is for releasing the holding mechanism. That is, in the display device in which the operation unit is provided in the main body, it is not easy to use and may be damaged.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a display device that is easy to use and less likely to be damaged by a user.

(1) In order to achieve the above object, a display device of the present invention includes a display panel having a display surface, a case for supporting the display panel, and rotating the case between a first posture and a second posture. A main body that is movably supported, a holding mechanism that holds the case between the first posture and the second posture, a release button for the holding mechanism, and a release mechanism that releases the holding mechanism in conjunction with the button. A link mechanism.

  The case supports the display panel so that the display surface of the display panel is exposed so as to be visible from the outside. The button is attached to the side of the rotating tip of the case where the display surface of the display panel is exposed so that it can be pushed in the rotating direction. The link mechanism releases the holding mechanism in conjunction with the pushing operation of the button. When the button is pressed by the user, the holding mechanism is released by the link mechanism, and then the display device is rotated by the force by which the button is pressed to change the display angle.

  In the present invention, the holding mechanism can be released and the display device can be rotated by a single operation of pressing the button, so that a user-friendly display device is realized.

  Further, since the button is provided on the side where the display surface of the display panel is exposed, the button can be easily recognized by the user, and further, the button is provided at the rotating tip of the case. A user who wants to change the display angle by rotating the display device can be prompted to press the button. In other words, a user who wants to push the display device to rotate the display device usually tries to push the turning tip that is farthest from the turning fulcrum in the case. By providing the button, the user can be prompted to press the button. The effect of prompting the user to press the button is exhibited not only for a user who knows that the holding mechanism needs to be released, but also for a user who does not know. As described above, the button can be easily recognized by the user and the user can be prompted to press the button, so that a display device that is less likely to be damaged by the user is realized.

(2) The button is preferably provided over the entire length of the case in the direction along the rotation axis of the case. Since the entire area of the rotating tip of one surface of the case on the side where the display surface of the display panel is exposed is covered by the button, it is possible to enhance the effect of prompting the user to press the button. This is because the possibility of damage by the user can be further reduced.

(3) The button is exposed on the display surface side of the display panel and receives a pressing operation, and the button protrudes from the base in a direction in which the base is pushed and is aligned in a direction along the rotation axis of the case. A plurality of protrusions. The link mechanism has a plurality of receiving portions that are in sliding contact with the protrusions, and a slide member that can slide in a direction along the rotation axis, and a link that releases the holding mechanism in conjunction with the slide of the slide member. A member.

  Each said protrusion part and each said receiving part are each provided with one of the 1st sliding contact surface and 2nd sliding contact surface which mutually contact. The first sliding contact surface and the second sliding contact surface are inclined with respect to a pushing direction in which the button is pushed and the sliding direction of the slide member.

  Since the first sliding contact surface and the second sliding contact surface are inclined with respect to the pressing direction in which the button is pressed and the direction along the rotation axis, the change in the pressing direction of the button is changed to the rotation axis. It can be changed to change along the direction. In the configuration in which the link member is moved in the pushing direction which is the thickness direction of the case, the movable range of the link member cannot be secured unless the thickness of the case is increased, but the change in the pushing direction of the button is rotated. By changing to a change in the direction along the axis, the link member can be moved in a plane along the display surface of the display panel, and as a result, the holding mechanism by the link member without increasing the thickness of the case. Can be released, and a thin display device can be realized.

  Further, by receiving the plurality of protrusions arranged in the direction along the rotation axis by the plurality of receiving portions, the force applied to the button is dispersed in the direction along the rotation axis and transmitted to the slide member. The force applied to the slide member in the direction along the rotation axis can be made uniform, the slide member can be prevented from tilting, and a plurality of protrusions are provided at the base of the button. The base portion of the button can be prevented from bending in the sliding direction, and as a result, the slide member can be smoothly slid in the sliding direction, and the display device can be thinned by thinning the base portion of the button. be able to.

(4) The case includes a third sliding contact surface that is in sliding contact with the sliding member, and the third sliding contact surface is inclined with respect to a pushing direction in which the button is pushed and a sliding direction of the sliding member. It is desirable. This is because the slide member can be supported in the pushing direction while suppressing an increase in sliding resistance of the slide member.

(5) It is desirable to use the present invention for a display device in which a touch panel for receiving input is stacked on the display panel. This is because it is possible to prevent the display angle from being changed by holding the display device by the holding mechanism when the touch panel is pressed by the user.

  The holding mechanism can be released and the display angle can be changed with a single operation of pressing a button, and the possibility of being rotated by the user without the holding mechanism being released is reduced. In addition, a display device that is less likely to be damaged by the user is realized.

1 is a perspective view of a multifunction machine including a display device according to an embodiment. It is a perspective view of a display device when it is in the 1st posture. It is a perspective view of a display device when it is in the 2nd posture. It is a perspective view of a display device without a cover and a display panel. It is a perspective view of the display apparatus of a state without a cover, a display panel, and a button. It is a perspective view of a button, a link mechanism, and a base. It is a perspective view of the display apparatus which the upper end part fractured | ruptured. It is a perspective view of the display apparatus which the right end part fractured | ruptured. It is a figure which shows a ratchet mechanism. It is a perspective view which shows a modification, (A) shows the modification 1, (B) shows the modification 2. FIG.

  Hereinafter, the preferred embodiments of the display device 20 of the present invention will be described with reference to the drawings as appropriate. In the following, an example in which the display device 20 of the present invention is used in a multifunction machine 1 that is an image recording device will be described. As will be described later, the multi function device 1 has a scan function, a print function, a copy function, and a fax function. The embodiment described below is an example of the present invention, and the present invention is not limited to the present embodiment, and includes an image recording device other than the multifunction machine 1 such as a printer, and a housing to which the display device 20 is attached. It can be used for other devices.

  As shown in FIG. 1, the multi-function device 1 is formed in a rectangular parallelepiped shape. In the following description, the height direction of the multifunction device 1 is defined as the up / down direction 5, the depth direction is defined as the front / rear direction 6, and the width direction is defined as the left / right direction 9.

  The multifunction machine 1 is roughly divided into a main body 10 and a top plate 2 that form an outer shape, a scanner unit and a printer unit (not shown) housed in the main body 10, and a paper feed cassette 3 that houses a recording medium such as recording paper. A control unit (not shown) that controls the operations of the scanner unit and the printer unit. An opening 12 for pulling out the paper feed cassette 3 is opened on the front surface 11 of the main body 10. A guide rail (not shown) is provided in the front-rear direction 6 behind the opening 12 in the main body 10. On both the left and right side surfaces of the paper feed cassette 3, fitting portions (not shown) that fit into the guide rails are provided. The user sets the recording medium in the paper feed cassette 3 by pulling the paper feed cassette 3 forward. The control unit is realized by, for example, a microcomputer or various electronic components mounted on a control board housed in the main body 10. Since the present invention is not related to control, description of the specific control of the multifunction machine 1 by the control unit is omitted.

  The top plate 2 is placed on the rear side of the upper surface of the main body 10, and the rear end is attached to the main body 10 using a hinge member (not shown) such as a hinge. That is, the top plate 2 is attached to the main body 10 so as to rotate about the rear end as a fulcrum. At the front end of the top plate 2, a hooking portion 2 </ b> B is provided for a user to hang a finger on. In the illustrated example, the hook portion 2B is provided so as to rise from the upper surface 2A of the top plate 2. The user opens the top plate 2 by placing his / her finger on the hooking portion 2 </ b> B, and sets a document to be imaged between the top plate 2 and the main body 10. The image of the set original is scanned by the scanner unit and captured as image data. A scanner unit having a known configuration is used, and details thereof are omitted.

  The main body 10 is provided with a connector (not shown) for connection with another device such as a personal computer or a digital camera or a telephone line. Image data captured by the scanner unit is transferred from the connector to another device such as a personal computer, sent to a telephone line, or recorded as an image on a recording medium set in the paper feed cassette 3 by the printer unit. The The printer unit records image data input from another device such as a personal computer or a telephone line as an image on a recording medium. In other words, the scanner unit and the printer unit realize a scan function, a print function, a copy function, and a fax function. A printer unit having a known configuration is used. For example, a paper feed transport path for transporting a recording medium from the paper feed cassette 3 to a recording section for recording an image, a paper discharge transport path for discharging the recording medium on which an image is recorded from the recording section, and a recording medium A printer unit is configured by the sheet feeding roller that is fed from the sheet feeding cassette 3 to the sheet feeding conveyance path and a plurality of conveyance rollers that convey the recording medium.

  Hereinafter, the display device 20, the main body 10 to which the display device 20 is attached, and the attachment member 4 and the operation cover 18 for attaching the display device 20 to the main body 10 will be described in detail.

[Main unit 10]
The front end portion 14 at the upper portion of the main body 10 is provided with a mounting portion (not shown) that is a recess for mounting the mounting member 4 shown in FIG. An insertion hole (not shown) through which a first connection cable for electrically connecting the above-described control board and an operation board to be described later is inserted is provided in the peripheral wall of the attachment portion.

[Mounting member 4]
The attachment member 4 is fitted into the above-described attachment portion provided on the main body 10 and attached to the main body 10 using an attachment screw, an engagement claw for snap fitting, or the like. The attachment member 4 is provided with a recess 4A into which the display device 20 is fitted. Bearings 17 </ b> A and 17 </ b> B for rotatably supporting the display device 20 are provided on both sides of the recess 4 </ b> A in the mounting member 4 in the left-right direction 9. In FIG. 4, the bearing 17 </ b> A provided on the right side of the recess 4 </ b> A is formed in a round tube shape, and the bearing 17 </ b> B provided on the left side of the recess 4 </ b> A is a surface on the side exposed to the outside of the operation cover 18. It is formed in the shape of a recess opened on the surface side. As will be described later, one of a pair of left and right support shafts 25 included in the display device 20 is fitted in each of the bearings 17A and 17B. That is, the display device 20 is rotatably supported by the bearings 17A and 17B.

[Operation cover 18]
The operation cover 18 is mounted on the surface side of the mounting member 4 using an engagement claw for snap fitting or the like, and covers the bearings 17A and 17B. That is, the operation cover 18 conceals the bearings 17A and 17B from the user, closes the opening of the bearing 17B, confines a support shaft 25 provided on the display device 20 in the recess 4A, and the display device 20 can be removed by the user. Do not. The operation cover 18 is formed so that the surface exposed to the outside is flush with the upper surface 2 </ b> A of the top plate 2 in order to bring out a sense of unity between the operation cover 18 and the top plate 2.

  As shown in FIG. 1, the operation cover 18 is provided with an exposure window 18A for exposing the display device 20 to the outside and an opening 18B for exposing the operation switch to the outside. The user performs various setting inputs such as input of a fax number, start of copying or printing, and setting of the number of copies by operating an operation switch exposed to the outside.

[Display device 20]
The display device 20 includes a display panel 21, a case 22 that holds the display panel 21, a ratchet mechanism 30 that corresponds to the holding mechanism of the present invention, a release button 26 for the ratchet mechanism 30, and a button 26 pressing operation. And a link mechanism 40 that releases the ratchet mechanism 30 in conjunction with each other.

[Display panel 21]
A panel-shaped display panel 21 is used. For example, a liquid crystal display, an organic EL display, or the like is used for the display panel 21. However, the display panel 21 is not limited to a liquid crystal display or an organic EL display, and may be a panel shape. When a liquid crystal display or the like is used for the display panel 21, the display panel 21 is formed in a rectangular shape in consideration of yield and the like. However, the display panel 21 can be formed in a shape other than a rectangle, such as a polygon such as a triangle or a pentagon, or a circle. In the following description, it is assumed that a liquid crystal display having a rectangular plate shape is used for the display panel 21. In the following, the thickness direction of the display panel 21 is defined as the front-rear direction 7 of the display device 20, and the short side direction is defined as the vertical direction 8 of the display device 20 among the directions along one side of the display surface of the display panel 21. Explained. As will be described later, the display device 20 is attached to the main body 10 so that the longitudinal direction of the display panel 21 coincides with the left-right direction 9 of the multifunction device 1.

  A transparent touch panel (not shown) is overlaid on the front side which is the display surface of the display panel 21. Various types of touch panels, such as a resistive film type and a capacitive coupling type, can be used. That is, a touch panel that accepts an input simply by touching the user's finger or a touch panel that accepts an input when pressed by the user is used. Since the configuration of the touch panel is well known, details are omitted.

  The user visually recognizes characters and figures displayed on the display panel 21 via a transparent touch panel. The user is guided by characters and figures displayed on the display panel 21 and operates the touch panel and operation switches. When an input is performed by the user pressing the touch panel, the input is input to the control unit via the connection cable, and the scanner unit and the printer unit operate. In addition, the above-described operation switch can be omitted by adopting a configuration in which all operation inputs are performed on the touch panel.

[Case 22]
As shown in FIG. 3 or 4, the case 22 includes a base 23 formed of a synthetic resin material in a rectangular plate shape, a mounting screw (not shown) on the front side of the base 23, and hooks and claws described later. And a cover 24 that is a synthetic resin molded product that is attached using the receiver 23D, and is formed in a box with a thin outer shape in the front-rear direction 7.

  An insertion hole 23 </ b> A through which the mounting screw is inserted passes through the lower end portion of the base 23, and a pair of left and right claws on which an unillustrated hooking claw protruding from the upper end surface of the cover 24 is caught on the upper end surface of the base 23. A receptacle 23D is provided. A screw hole (not shown) into which a mounting screw is screwed is provided at a position corresponding to the above-described insertion hole 23 </ b> A in the lower end portion of the cover 24. A hooking claw is hooked on the claw receiver 23D to fix the upper end portion of the cover 24 and the upper end portion of the base 23, and then a mounting screw is inserted from the rear surface side of the base 23 into the insertion hole 23A. The cover 24 is attached to the base 23 by screwing.

  The display panel 21 is disposed between the base 23 and the cover 24 and is fixed by being sandwiched between the base 23 and the cover 24. The cover 24 is provided with an exposure window 24 </ b> A that exposes the display surface of the display panel 21 to the front side of the display device 20.

  As shown in FIG. 7, a pair of left and right support shafts rotatably supported by the bearings 17 </ b> A and 17 </ b> B (see FIG. 4) provided on the main body 10 are provided at the lower ends of the left and right side surfaces of the case 22. One of 25 is projected. The support shaft 25 is formed in a cylindrical shape. The case 22 is fitted into the recess 4 </ b> A of the mounting member 4 by inserting the other support shaft 25 into the bearing 17 </ b> B after the one support shaft 25 is inserted into the bearing 17 </ b> A formed in a round tube shape.

  After the case 22 is fitted in the recess 4A, the above-described operation cover 18 is mounted on the surface side of the mounting member 4 using an engagement claw for snap fitting or the like. That is, the support shaft 25 provided in the case 22 is supported by the bearings 17A and 17B and the operation cover 18. In other words, the display device 20 is rotatably supported by the main body 10. In the above description, the example in which the support shaft 25 is provided on the display device 20 and the bearings 17A and 17B are provided on the main body side has been described. However, the support shaft 25 is provided on the main body 10 side and the bearings 17A and 17B are displayed. The configuration may be provided in the device 20. Further, the configuration in which the display device 20 is rotatable by the support shaft 25 and the bearings 17A and 17B is an example, and the display device 20 is rotatably attached to the main body 10 by a known rotation mechanism. be able to.

  As described above, the display device 20 is rotatable around the support shaft 25. That is, the display device 20 is rotatable about the lower end portion as a fulcrum. Accordingly, the display device 20 is fitted in the recess 4A provided in the attachment member 4 and the front surface of the case 22 is flush with the surface of the operation cover 18, and the front surface is substantially the same as the surface of the operation cover 18. The posture can be changed between the second posture of FIG. The central axis of the support shaft 25 corresponds to the rotation axis of the present invention.

  A pull-in hole (not shown) for pulling the above-described second connection cable into the case 22 is provided in the lower end portion of the case 22. Further, as shown in FIG. 7, a support rib 23 </ b> B for supporting a slide member 41 of the link mechanism 40 described later protrudes from the upper end portion of the front surface of the base 23 of the case 22. The front end surface of the support rib 23 </ b> B that is the third sliding contact surface of the present invention is provided so as to be inclined with respect to the front-rear direction 7 and the left-right direction 9.

  Further, as shown in FIG. 4, a cylindrical support shaft 23 </ b> C protrudes from the right end portion of the front surface of the base 23. The support shaft 23C is inserted into an insertion hole 46A provided in the link member 45 of the link mechanism 40, as will be described later. That is, the link member 45 is rotatably supported by the support shaft 23C. Here, the projecting dimension of the support shaft 23C is set so that the front end of the support shaft 23C abuts on or close to the rear surface of the cover 24 so that the link member 45 does not fall off the support shaft 23C.

[Ratchet mechanism 30]
The ratchet mechanism 30 includes the gear 31 and the stopper 32 shown in FIG. The gear 31 is disposed on the main body 10 side, and the stopper 32 is disposed on the display device 20 side. Hereinafter, the gear 31 and the stopper 32 will be described in detail.

[Stopper 32]
The stopper 32 is attached to the base 23 of the case 22 using a housing 33 which is a synthetic resin molded product shown in FIG. The stopper 32 is attached to the housing 33 so that the tip portion protrudes from the right side surface of the housing 33. The housing 33 accommodates an elastic member such as a leaf spring for allowing the stopper 32 to swing. The stopper 32 is pressed against the teeth 34 of the gear 31 by the elastic force of the elastic member, as will be described later.

  The housing 33 is disposed at the right end of the lower end portion of the front surface of the base 23 in FIG. Further, the housing 33 has an engagement posture shown in FIG. 9C in which the stopper 32 engages with a gear 31 arranged on the right side of the stopper 32 as described later, and the stopper 32 is located on the left side of the gear 31. The stopper 32 is attached to the base 23 so as to be slidable in the left-right direction 9 so that the posture of the stopper 32 can be changed between the non-engagement posture shown in FIG. For example, a protrusion is provided on the rear surface of the housing 33, and a slide groove in which the protrusion is fitted along the left-right direction 9 is provided on the front surface of the base 23, and the protrusion slides in the slide groove. As a result, the housing 33 slides in the left-right direction 9.

  A cylindrical support shaft 33 </ b> A is projected from the front surface of the housing 33. As will be described later, the support shaft 33 </ b> A is inserted into an insertion hole 48 </ b> A provided in the link member 45 of the link mechanism 40 and has a function of moving the housing 33 in accordance with the rotation of the link member 45. The protruding dimension of the support shaft 33A is set so that the tip of the support shaft 33A contacts the rear surface of the cover 24 so that the link member 45 does not come off the support shaft 33A. Further, the front end of the support shaft 33A abuts against the rear surface of the cover 24, so that the movement of the housing 33 in the front-rear direction 7 is prohibited, and the housing 33 moves only in the left-right direction 9.

  A spring spring 37 is disposed on the left side of the housing 33 in FIG. The left end of the spring spring 37 is supported by abutting a support portion (not shown) provided in the case 22, and the right end abuts on the left side surface of the housing 33. The housing 33 is biased toward the right engagement posture by the elastic force of the spring spring 37. Therefore, in a normal state where the button 26 is not pressed, the stopper 32 held by the housing 33 is in the engagement posture and engages with the gear 31.

[Gear 31]
The gear 31 is disposed on the right side of the housing 33 in FIG. 5 and is fixed to the mounting member 4. The teeth 34 of the gear 31 are a curved surface 35 in which the stopper 32 slides when the case 22 is rotated forward from the first posture to the second posture, and a stop that contacts the stopper 32 and stops the reverse rotation of the case 22. And is formed in a saw-like shape.

  As described above, the stopper 32 is swingably held by the housing 33 by the elastic member. When the display device 20 is rotated forward so as to move from the first posture toward the second posture, the tip of the stopper 32 is in sliding contact with the curved surface 35 of the tooth 34 of the gear 31 and the elastic member made of a leaf spring or the like is deformed. When the surface is moved over the curved surface 35, the elastic member is displaced by the elastic force of the elastic member and comes into contact with the stop surface 36 of the tooth 34. The stop surface 36 causes the display device 20 to move from the second posture. Reverse rotation, which is rotation in the direction toward the first posture, is prohibited. That is, the display device 20 is prohibited from rotating in reverse by the stopper 32 coming into contact with the stop surface 36 of the tooth 34 of the gear 31. Therefore, the display device 20 can change the display angle in stages according to the number of teeth 34 of the gear 31 and is held by the ratchet mechanism 30 in each stage. In the example shown in FIG. 9, the display device 20 can change the display angle in three stages. Since the reverse rotation of the display device 20 can be stopped by the ratchet mechanism 30, the display angle is maintained even when the touch panel is pressed by the user.

[Button 26]
As shown in FIGS. 7 and 8, the button 26 is attached to the upper end portion, which is the rotational tip portion of the case 22, so as to be exposed on the front side of the display device 20. The button 26 includes a base 27 that is a synthetic resin molded product formed in a plate shape that is long in the left-right direction 9, left and right side walls 27 </ b> A that protrude rearward from the left and right ends of the base 27, and left and right ends of the upper end of the base 27. An upper wall 27 </ b> B that protrudes rearward and a plurality of protrusions 28 that protrude from the rear surface of the base 27 are provided. The button 26 is disposed such that the base 27 is exposed on the front side of the display device 20, and the left and right side walls 27 </ b> A and the upper wall 27 </ b> B cover the side wall of the cover 24. The button 26 slides in the front-rear direction 7, which is the thickness direction of the display panel 21, as the inner side surface of the left and right side walls 27 </ b> A and the inner side surface of the upper wall 27 </ b> B are in sliding contact with the outer side surface of the side wall of the cover 24. That is, the base 27 can be pushed backward in the direction in which the case 22 rotates. The case 22 is provided with a guide groove along the front-rear direction 7 and the button 26 is provided with a protrusion that fits into the guide groove so that the button 26 can slide in the front-rear direction 7. May be.

  The base portion 27 is provided over the entire length of the case 22 in the left-right direction 9 and covers the entire upper end portion, which is the rotating tip portion of the case 22. That is, when the user presses the rotating tip of the display device 20, the button 26 is always pressed. The operation of the display device 20 when the user presses the button 26 will be described in detail later.

  The button 26 is attached to the case 22 so that the base 27 protrudes forward from the front surface of the case 22. That is, when the display device 20 is in the first posture fitted in the recess 4A of the mounting member 4, the front surface of the case 22 is flush with the surface of the operation cover 18 as described above. 27 protrudes from the surface of the operation cover 18. When the display device 20 is in the first posture fitted in the recess 4 </ b> A of the mounting member 4, the user puts his / her finger on the upper wall 27 </ b> B of the button 26 protruding from the surface of the operation cover 18 to move the display device 20 forward. The display angle of the display device 20 can be changed. In addition, by dropping a part of the upper surface 2A of the top plate 2 from the surface of the operation cover 18, the upper wall 27B of the button 26 or the upper end of the case 22 is further exposed to the outside, and the user causes the display device 20 to move forward. Can make it easier.

  A plurality of protruding portions 28 of the button 26 are provided so as to be aligned in the left-right direction 9 which is a direction along the rotation axis of the case 22. The rear surface 28 </ b> A corresponding to the first or second sliding contact surface of the present invention is formed as an inclined surface that is inclined with respect to the front-rear direction 7 and the left-right direction 9. The protrusion 28 has a function of converting a change in the front-rear direction 7 of the button 26 into a change in the left-right direction 9 as will be described later. A spring spring 29 is disposed between the base 27 of the button 26 and the base 23 of the case 22. The rear end of the spring spring 29 is supported by contacting the base 23, and the front end contacts the rear surface of the base portion 27 of the button 26. The base 27 of the button 26 is biased forward with respect to the base 23 by the spring spring 29. One spring spring 29 is provided at each of the left and right ends of the case 22 so that the base 27 of the button 26 does not tilt with respect to the base 23.

[Link mechanism 40]
The link mechanism 40 includes a slide member 41 that is a synthetic resin molded product that receives the protruding portion 28 of the button 26, and a link member 45 that is a synthetic resin molded product that interlocks the slide member 41 and the housing 33.

[Slide member 41]
As shown in FIGS. 6 and 7, the slide member 41 includes a rod-like base portion 42 that is long in the left-right direction 9, and a plurality of receiving portions 43 that protrude from the base portion 42. In FIG. 6, a part of the base 23 is omitted. Each receiving portion 43 is provided so as to face one of the protruding portions 28 of the button 26 in the front-rear direction 7, and is arranged in the left-right direction 9. The receiving portion 43 is provided with a slidable contact surface 43A (corresponding to the first or second slidable contact surface of the present invention) that slidably contacts the rear surface 28A of the protruding portion 28 formed on the inclined surface. The sliding contact surface 43 </ b> A is formed on an inclined surface that is inclined with respect to the front-rear direction 7 and the left-right direction 9, similarly to the rear surface of the protruding portion 28.

  When the base portion 27 of the button 26 is pressed by the user, the rear surface 28A of the protruding portion 28 and the sliding contact surface 43A of the receiving portion 43 are in sliding contact, and the slide member 41 slides in the left-right direction 9. That is, the movement of the button 26 in the front-rear direction 7 is changed to the movement of the slide member 41 in the left-right direction 9 by the rear surface 28A of the protruding portion 28 and the sliding contact surface 43A of the receiving portion 43. In the present embodiment, the inclination direction of the rear surface 28A of the protruding portion 28 is set so that the slide member 41 slides to the right in FIG.

  Similar to the front end surface of the support rib 23B provided on the base 23, the rear surface 41A of the slide member 41 is formed on an inclined surface that is inclined with respect to the front-rear direction 7 and the left-right direction 9, and the front end of the support rib 23B. The surfaces abut. That is, the slide member 41 is supported by the support rib 23B. By forming the front end surface of the support rib 23 </ b> B to be an inclined surface, the slide member 41 can be supported by the base 23 while suppressing an increase in the sliding resistance of the slide member 41. Since an increase in sliding resistance can be suppressed, the slide member 41 can be smoothly slid.

  A cylindrical support shaft 44 projects from the end of the rear surface of the slide member 41 in the left-right direction 9. As will be described later, the support shaft 44 is inserted into an insertion hole 47A provided in the link member 45 of the link mechanism 40, and has a function of rotating the link member 45 around the support shaft 23C in conjunction with the slide member 41. . The projecting dimension of the support shaft 44 is set so that the tip of the support shaft 44 abuts on or close to the rear surface of the cover 24 so that the link member 45 does not come off the support shaft 44.

[Link member 45]
As shown in FIGS. 5 and 8, the link member 45 is formed in a bar shape in which a pair of upper and lower arms 47 and 48 intersect at an obtuse angle in the bent portion 46. An insertion hole 47 </ b> A through which the support shaft 44 provided on the slide member 41 is inserted is provided at the upper end of the upper arm 47. An insertion hole 48 </ b> A through which a support shaft 33 </ b> A provided in the housing 33 is inserted is provided at the lower end portion of the lower arm 48. Furthermore, the bent portion 46 is provided with an insertion hole 46 </ b> A through which the support shaft 23 </ b> C provided on the base 23 of the case 22 is inserted.

  When the button 26 is pushed by the user and the slide member 41 moves to the right in FIG. 5 as described above, the link member 45 is engaged with the slide member 41 by the support shaft 44 and the insertion hole 47A. The upper end of the arm 47 moves to the right together with the slide member 41. As the upper end of the arm 47 moves to the right, the link member 45 rotates around the support shaft 23C in the clockwise direction in FIG. As the link member 45 rotates clockwise, the lower end portion of the arm 48 of the link member 45 moves to the left. When the lower end of the arm 48 moves to the left, the housing 33 engaged with the lower end of the arm 48 by the insertion hole 48A and the support shaft 33A moves to the left against the biasing force of the spring spring 37. . When the housing 33 moves to the left, the stopper 32 held by the housing 33 is separated from the gear 31 and the lock of the ratchet mechanism 30 is released. That is, when the user presses the button 26, the ratchet mechanism 30 is released. When the ratchet mechanism 30 is released, the case 22 is reversely rotated by the force by which the button 26 is pressed and falls backward. That is, the ratchet mechanism 30 can be released and the display angle can be changed by one operation of pressing the button 26.

  Further, when the ratchet mechanism 30 is released and the case 22 is not held by the ratchet mechanism 30, the case 22 moves rearward with respect to the button 26 by the biasing force of the spring spring 29, and the button 26 returns to the original position. The housing 33 slides to the left by the urging force of the spring spring 37, and the stopper 32 changes its posture from the non-engagement posture to the engagement posture, and the display device 20 is held again by the ratchet mechanism 30. That is, the display angle of the display device 20 changes by one step in the case of reverse rotation that moves from the second posture side to the first posture side. Since the display angle is changed stepwise, the display device 20 does not collide with the mounting member 4 vigorously, and the possibility of damage to the display device 20 by the user is reduced.

[Effect of this embodiment]
The display device 20 of the present invention can perform the release of the ratchet mechanism 30 and the operation of rotating the display device 20 in a single operation of pressing the button 26, which is convenient. Further, since the button 26 is provided on the front side of the display device 20, the button 26 can be easily recognized by the user, and further, the rotation tip portion farthest from the lower end portion of the case 22 serving as a fulcrum of rotation. Since the button 26 is provided at the upper end portion, the user who wants to reversely rotate the display device 20 can be prompted to press the button 26. In other words, a user who wants to push the case 22 to reversely rotate the display device 20 usually tries to push the upper end that is the farthest turning tip from the turning fulcrum. By providing the moving tip, the user can be prompted to press the button 26. Since the button 26 is easily visible and the user can be prompted to press the button 26, the possibility of damage by the user is reduced. As a result, the display device 20 that is easy to use and less likely to be damaged by the user is realized.

  In addition, since the base 27 of the release button 26 of the ratchet mechanism 30 covers the entire upper end of the case 22 that is the rotation tip, the button 26 must be pressed whenever the user presses the rotation tip of the display device 20. As a result, the risk of damage by the user is further reduced.

  Further, since the plurality of protrusions 28 are arranged in the left-right direction 9, even if the user presses the end of the base 27 of the button 26, the force to press the base 27 is left and right in the protrusion 28. 9 is transmitted to the slide member 41 and the force applied to the slide member 41 in the left-right direction 9 can be made uniform. In addition, by providing a large number of protrusions 28 along the left-right direction 9, the base 27 in the left-right direction 9 is smaller than when a small number of protrusions 28 are provided on the base 27 or when there is only one protrusion 28. Can be prevented. Furthermore, by forming the front end surface of the support rib 23B as an inclined surface, an increase in sliding resistance of the slide member 41 can be suppressed while the slide member 41 is supported. The force applied to the slide member 41 in the left-right direction 9 can be made uniform, the bending of the base 27 in the left-right direction 9 can be prevented, and the increase in the sliding resistance of the slide member 41 is suppressed. Therefore, the slide member 41 can smoothly slide in the left-right direction 9.

  Further, as described above, the base 27 can be prevented from being bent by the plurality of protrusions 28, so that the base 27 can be thinned by setting the thickness of the base 27 small, and the button 26 increases the thickness of the display device 20. As a result, the thin display device 20 can be realized.

  Further, since the movement of the button 26 in the front-rear direction 7 can be changed to the movement in the left-right direction 9 by the slide member 41, the link member 45 can be moved in a plane along the display surface of the display panel 21. When the slide member 41 does not change the movement of the button 26 in the front-rear direction 7 to the movement in the left-right direction 9, the link member 45 and the stopper 32 move in the front-rear direction 7, and the movable range of the link member 45 and the stopper 32 In order to ensure this, the thickness of the case 22 must be increased. As a result, the display device 20 cannot be thinned. In the present invention, since the link member 45 can be moved in a plane along the display surface of the display panel 21, the thickness of the display device 20 can be prevented from increasing, and as a result, the display device 20 can be thinned. It is.

  In the present embodiment, the configuration in which the stopper 32 is attached to the case 22 and the gear 31 is attached to the main body 10 has been described. However, the stopper 32 may be attached to the main body 10 and the gear 31 may be attached to the case 22. Moreover, although the structure which enables attitude | position change of the stopper 32 was demonstrated, it can also be set as the structure which can change attitude | position of the gear 31. FIG. That is, the stopper 32 is attached to the case 22 so that the posture can be changed, the gear 31 is fixed to the main body 10, the stopper 32 is fixed to the case 22, and the gear 31 is attached to the main body 10 so that the posture can be changed. Any of the four configurations: a configuration in which the posture is attached to the main body 10 and the gear 31 is fixed to the case 22, and a configuration in which the stopper 32 is fixed to the main body and the gear 31 is attached to the case 22 so that the posture can be changed. You can also

  Further, in the present embodiment, the configuration in which the display device 20 is held in stages by the ratchet mechanism 30 has been described. However, instead of the ratchet mechanism 30, a frictional force is applied to the main body case 22 by contacting the main body case 22, A known holding mechanism including a holding member that holds the display device 20 by stopping the rotation of the main body case 22 by the frictional force can also be used. For example, the holding member is attached to the case 22 so as to be movable between a position where the holding member abuts on the case 22 and generates a frictional force with the case 22 and a position where the holding member is separated from the case 22. The holding member is moved by the link mechanism 40 in conjunction with the pressing operation of the button 26. Also in the display device that holds the case 22 in stages using this holding mechanism, the button 26 is provided at the rotating tip, and the direction in which the button 26 is pressed matches the direction in which the case 22 rotates, The display device 20 that is easy to use and less likely to be damaged by the user can be realized.

[Modification 1]
In this modification, the button 26 includes two base portions 27 as shown in FIG. One base 27 is disposed at each of the left and right ends of the upper end of the case 22. That is, two bases 27 for right-handed users and left-handed users are arranged in the case 22. The two base portions 27 are each provided with a protruding portion 28. Accordingly, the ratchet mechanism 30 is released regardless of which base 27 is pushed.

Further, the two bases 27 may be connected by a connecting part (not shown) disposed between the base 23 of the case 22 and the cover 24. That is, the two bases 27 are connected to each other in a place that is not visible to the user. The force applied to the slide member 41 can be made uniform in the left-right direction 9 by connecting the two base portions 27. In addition, when connecting the two base parts 27, you may provide the protrusion part 28 only in one base part 27. FIG. Regardless of which base 27 is pushed, the two bases 27 move together and the ratchet mechanism 30 is released.

  Instead of connecting the two base portions 27, two link members 45 may be arranged in the case 22, and each base portion 27 and the housing 33 may be linked to one of the two link members 45. it can.

  By providing the two base portions 27 in the case 22, the length dimension of the base portion 27 in the left-right direction 9 can be reduced, and as a result, the possibility that the base portion 27 does not slide smoothly depending on where the base portion 27 is pressed can be reduced. .

[Modification 2]
In this modification, the button 26 includes three base portions 27 as shown in FIG. One base 27 is disposed at each of the left and right ends and the center. Each of the three base portions 27 is provided with a protruding portion. Accordingly, the ratchet mechanism 30 is released regardless of which base 27 is pushed.

  Further, the three base portions 27 may be connected by a connecting portion (not shown) disposed between the base 23 of the case 22 and the cover 24. That is, the three bases 27 are connected to each other in a place that is not visible to the user. The force applied to the slide member 41 can be made uniform in the left-right direction 9 by connecting the three base portions 27. In addition, when connecting the three base parts 27, you may provide the protrusion part 28 only in the one base part 27. FIG. Regardless of which base 27 is pushed, the three bases 27 move together and the ratchet mechanism 30 is released.

  Further, instead of connecting the three base portions 27, three link members 45 may be arranged in the case 22, and each base portion 27 and the housing 33 may be linked with one of the link members 45. .

  By further providing the base 27 between the right-handed base 27 and the left-handed base 27, the length of each base 27 in the left-right direction 9 can be reduced, and the length of the base 26 can be reduced. It is possible to prevent the moving tip from being pushed by the user. That is, it is possible to prevent the display device 20 from being damaged by the user and to slide the slide member 41 smoothly.

  In the above-described modification, the example in which the button 26 includes two or three bases 27 has been described. However, the button 26 may include a plurality of bases 27. When a large number of base portions 27 are provided in the case 22, the base portions 27 are provided so as to be ubiquitous at the upper end portion of the case 22 in the left-right direction 9, for example.

1 ... Multifunction machine (image recording device)
DESCRIPTION OF SYMBOLS 2 ... Top plate 3 ... Paper feed cassette 4 ... Mounting member 10 ... Main body 18 ... Operation cover 20 ... Display apparatus 21 ... Display panel 22 ... Case 26 ... -Button 27 ... Base 28 ... Projection 30 ... Ratchet mechanism 31 ... Gear 32 ... Stopper 40 ... Link mechanism 41 ... Slide member 43 ... Receiving part 45 ...・ Link members

Claims (5)

A display panel having a display surface;
A case in which the display surface of the display panel is exposed and supported so as to be visible from the outside, and
A main body that rotatably supports the case between a first posture and a second posture;
A holding mechanism for holding the case between the first posture and the second posture;
In the case, on the side where the display surface is exposed and provided at the rotating tip of the case, a button that can be pushed in the rotating direction;
A display device, comprising: a link mechanism that is provided in the case and releases the holding of the case by the holding mechanism in conjunction with a pressing operation of the button.   The display device according to claim 1, wherein the button is provided over both ends of the case along a rotation axis. The button is exposed to the outside in the case, and a base for receiving a pressing operation;
A plurality of protrusions that protrude from the base in the pushing direction and are arranged in a direction along the rotation axis,
The link mechanism has a plurality of receiving portions that are in sliding contact with the protrusions, and a slide member that is slidable in a direction along the rotation axis;
A link member that releases the holding of the holding mechanism in conjunction with the slide of the slide member,
The first sliding contact surface and the second sliding contact surface on which the projecting portions and the receiving portions are in sliding contact with each other are inclined with respect to the pushing direction and the sliding direction of the slide member. Display device.   4. The case according to claim 3, wherein the case has a third sliding contact surface that is in sliding contact with the sliding member, and the third sliding contact surface is inclined with respect to the pushing direction and the sliding direction of the sliding member. The display device described.   The display device according to claim 1, further comprising a touch panel that is stacked on a display surface of the display panel and receives an input.

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