JP4930718B2 - Display support device, electronic equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a display supporting device for turnably supporting a display on a base body while surely holding the display in desired turnable attitude without lowering operability when turning the display. <P>SOLUTION: Four supporting arm portions 453 of a bearing part 45 are fastened by the spring force of a spring 47 so as to be thrust against the outer peripheral face of a shaft portion 11. The shaft portion 11 of a liquid crystal display panel 10 is borne by the four supporting arm portions 453 in the state that the outer peripheral face of the shaft portion 11 is put in sliding contact with the inner peripheral faces of the four supporting arm portions 453. The shaft portion 11 has a regular octagon-shaped cross section in the direction of crossing the axial center, where a distance from the axial center to the outer peripheral face is relatively different. <P>COPYRIGHT: (C)2009,JPO&amp;INPIT

Description

  The present invention relates to a display support device that rotatably supports a display device on a base, and an electronic apparatus including the display support device.

  2. Description of the Related Art Electronic devices having a display such as a small liquid crystal display panel (hereinafter simply referred to as “display”) that displays an operation screen for a user to operate and a digital image, such as a printer and a digital camera, are well known. is there. In such an electronic device, a display device that is rotatably supported by a base of the electronic device and that can hold the posture of the display device at an arbitrary rotation position is known ( For example, see Patent Document 1 or 2.)

More specifically, for example, by using a spring force such as a leaf spring, a certain frictional force is generated in the sliding contact portion between the rotating shaft of the display and its bearing, and the posture of the display is determined by the frictional force. A printer having a support structure for holding the lens at an arbitrary rotation position is known (see, for example, Patent Document 1). Further, for example, a gear body with teeth formed in an arc shape is integrally provided on the display, a leaf spring is provided on the base side so as to mesh with the teeth of the gear body, and the leaf spring is elastically applied to the teeth of the gear body. A scanner device having a support structure that holds the posture of the display device at an arbitrary rotation position by engaging with each other is known (see, for example, Patent Document 2).
JP 2005-53046 A JP 2007-147938 A

  However, for example, in a display such as a touch panel liquid crystal display that can be operated by directly touching the displayed operation screen with a finger, the display is pushed backward each time the user touches the display screen. It will be. Therefore, as in the prior art disclosed in Patent Document 1, if the holding force is weak simply by generating a constant frictional force at the sliding contact portion between the rotating shaft of the display and the bearing, Each time the touches the display screen, the rotation position of the display may gradually change backward. Furthermore, if the frictional force of the sliding contact portion between the rotating shaft of the display and its bearing is increased in order to prevent such a situation, the holding force of the rotating position of the display becomes stronger. Therefore, there is a possibility that the operability when the display is rotated is lowered.

  Moreover, in the prior art disclosed by patent document 2, the rotation position of a display is hold | maintained only with one leaf | plate spring. Therefore, a sufficient holding force cannot be obtained, and there is a possibility that the display device may swing back and forth or the rotational position may change when the user touches the display screen.

  The present invention has been made in view of such a situation, and the problem is that in a display support device that rotatably supports a display on a base, the operability when the display is rotated is reduced. It is possible to securely hold the display device in a desired rotation posture without causing the display device to move.

  In order to achieve the above object, a first aspect of the present invention is a display support device for rotatably supporting a display on a base, which is provided on either the base or the display, A shaft body having a portion with a relatively different distance from the axial center to the outer peripheral surface, which is a rotation axis of the display device, and the shaft provided on the other of the base body or the display device and bearing the shaft body A bearing portion having a plurality of support portions arranged apart from each other in the circumferential direction along the outer peripheral surface of the body, and a pressing means for pressing the plurality of support portions against the outer peripheral surface of the shaft body. This is a display support device characterized by that.

  As described above, the bearing portion is provided with a plurality of support portions that are spaced apart from each other in the circumferential direction along the outer peripheral surface of the shaft body. Further, the plurality of support portions are pressed against the outer peripheral surface of the shaft body by the pressing means. Accordingly, the indicator rotates while the outer peripheral surface of the shaft body supported by the bearing portion is in sliding contact with the inner peripheral surfaces of the plurality of support portions, and rotation resistance is applied due to frictional force generated on the sliding contact surfaces. It is pivotally supported.

  And the shaft body used as the rotating shaft of a display has a part where the distance from an axial center to an outer peripheral surface differs relatively. Therefore, the support portion of the bearing portion is displaced outwardly against the pressing force of the pressing means when sliding from a relatively short distance to a long distance from the shaft center of the outer peripheral surface of the shaft body. . On the other hand, the support portion of the bearing portion is displaced inward by the pressing force of the pressing means when sliding from a portion having a relatively long distance from the axial center of the outer peripheral surface of the shaft body to a short portion. That is, the indicator is pivotally supported in a state in which a portion having a relatively long distance from the shaft center of the outer peripheral surface of the shaft body is urged to a rotational position located between the support portions of the bearing portion. Will be.

  In addition, when the portion of the outer peripheral surface of the shaft body, which is relatively long from the shaft center, is between the support portions of the bearing portion, the portion of the outer peripheral surface of the shaft body is fitted between the support portions. Engage to fit. That is, the indicator in this state is locked in rotation by holding the portion of the outer peripheral surface of the shaft body narrowly between the support portion in addition to the rotation resistance due to the frictional force. Therefore, the rotation position is held most firmly.

  On the other hand, at the rotational position where the relatively long distance from the shaft center of the outer peripheral surface of the shaft body is in sliding contact with the inner peripheral surface of the support portion of the bearing portion, the display unit is merely a rotational resistance due to substantially frictional force. Will be retained. Accordingly, the indicator is in a state where it can be easily rotated, or the display unit is engaged so that a portion having a relatively long distance from the shaft center of the outer peripheral surface of the shaft body is fitted between the support portions. It is rotated to the moving position by the pressing force of the pressing means.

  Therefore, at a desired rotation position where the posture of the display device is desired to be maintained, a state in which a relatively long distance from the shaft center of the outer peripheral surface of the shaft body is between the support portion and the support portion of the bearing portion; Thus, the outer peripheral surface shape of the shaft body and the shape and arrangement of the support portion of the bearing portion are set and disposed. Thereby, the posture of the display can be firmly held at the desired rotation position. Further, in other rotation positions, the display can be easily rotated. The desired rotation position is, for example, one or two or more rotation positions that provide an optimum inclination angle when using the display device, and a rotation position that serves as an accommodation position when the display device is not used. is there.

  Thereby, according to the display device supporting apparatus described in the first aspect of the present invention, in the display device supporting apparatus that rotatably supports the display device on the base body, the operability when rotating the display device is lowered. There is an effect that the display device can be reliably held in a desired rotation posture without being caused.

  According to a second aspect of the present invention, in the display device supporting apparatus according to the first aspect described above, the shaft body has a polygonal cross-sectional shape in a direction intersecting the axis. It is a vessel support device.

  Thus, by making the cross-sectional shape in the direction intersecting the shaft center a polygonal shaft body, it is possible to easily realize a shaft body having a plurality of portions having a relatively long distance from the shaft center to the outer peripheral surface. it can. And if each support part is arrange | positioned according to the space | interval of the corner | angular part of a polygon, etc., it can be engaged so that a polygon corner | angular part may fit between each support part simultaneously.

  That is, by disposing a plurality of fitting portions in the circumferential direction and fitting them together at a desired rotation position, the display device can be held more stably at the desired rotation position. Moreover, since the retention strength in each fitting part can be made small, the possibility that the operativity at the time of rotating a display device may be reduced can be reduced more.

  According to a third aspect of the present invention, in the display device support device according to the first aspect or the second aspect described above, the outer peripheral surface of the shaft body has a protruding portion along the axial direction of the shaft body. It is the display support device characterized by being provided.

  As described above, by providing the protruding portion along the axial direction on the outer peripheral surface of the shaft body, a portion having a relatively long distance from the axial center to the outer peripheral surface can be formed. And, by adjusting the number of projections, the interval, the cross-sectional shape, etc., the strength of the holding force at the desired rotation position of the display and the strength of the rotation resistance during the rotation operation can be easily adjusted. Can do.

  According to a fourth aspect of the present invention, in the indicator support device according to any one of the first to third aspects described above, a portion having a relatively long distance from the axis of the shaft body to the outer peripheral surface is: An indicator support device characterized in that the inclined surface from the top of the part to the other side in the circumferential direction is a gentler inclined surface than the inclined surface from the top of the part to the one side in the circumferential direction. It is.

  By forming the shaft body in such a shape, the rotation resistance when the display device is rotated to one side and the rotation resistance when the display device is rotated to the other side can be made different. For example, in the case of a touch panel liquid crystal display, the rotational resistance in the direction in which the display is rotated to the front side (display surface side) and rotated to the rotational position where it is in the standing posture is relatively weak. To. Accordingly, when the display is rotated to the rotation position where the display is in the standing posture, a smooth rotation operation of the display can be realized. On the other hand, since the rotation resistance when the display is rotated backward is relatively strong, the display is gradually moved backward by the user touching and operating the display screen of the display in the standing posture. Can be prevented from rotating.

  According to a fifth aspect of the present invention, in the indicator support device according to any one of the first to fourth aspects described above, a biasing means for biasing the indicator in any one of the rotating directions is provided. It is the display support device characterized by this.

  As described above, by providing the urging means for urging the display device in any one of the rotation directions, it is possible to smoothly perform the rotation operation of the display device in the rotation direction. In addition, the display device can be automatically rotated to a desired rotation position by the urging force of the urging means. Therefore, the operability when rotating the display can be further improved.

According to a sixth aspect of the present invention, there is provided an electronic apparatus including the display and the display support device according to any one of the first to fifth aspects described above.
According to the electronic device according to the sixth aspect of the present invention, in the electronic device provided with the display, the operational effects of the invention according to any one of the first to fifth aspects described above can be obtained.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

<Schematic configuration of inkjet printer>
First, a schematic configuration of an inkjet printer 50 as an “electronic device” according to the present invention will be described.
FIG. 1 is an external perspective view of the ink jet printer 50. FIG. 2 is a cross-sectional side view of a main part of the ink jet printer 50.

  An operation panel 4 having various operation buttons and a liquid crystal display panel 10 for performing various displays are disposed on the upper surface of the printer body 1. The printer cover 5 is pivotally supported on the operation panel 4 so as to be rotatable about a rotation shaft 6. When the ink jet printer 50 is not used, the printer cover 5 is closed, so that the operation panel 4 and the liquid crystal display panel 10 disposed on the upper surface of the printer body 1 are covered and protected by the printer cover 5. The The liquid crystal display panel 10 is pivotally supported by the operation panel 4 so as to be rotatable about the shaft portion 11 as a rotation axis, and can be used while being rotated in the direction indicated by the symbol C to maintain a standing posture. it can. The printer main body 1 is provided with a handle 20 for rotating the inkjet printer 50 so as to be rotatable.

  A discharge port 7 through which the recording paper P after execution of recording is discharged is provided on the front surface of the printer body 1, and a discharge tray 3 is disposed so that the discharge port 7 can be opened and closed. The discharge tray 3 is pivotally supported by the printer main body 1 so as to be rotatable. When the ink jet printer 50 is not used, the discharge port 7 is covered with the discharge tray 3 by closing the discharge tray 3. Further, when the ink jet printer 50 is used, the recording paper P after execution of recording discharged from the discharge port 7 is in an opened state by opening the discharge tray 3 in the direction indicated by the symbol A. Stacked on the discharge tray 3.

  The ink jet printer 50 includes a transport driving roller 51, a transport driven roller 52, a platen 53, a discharge drive roller 54, a discharge driven roller 55, a carriage 61 and a recording head 62 as means for executing recording on the recording paper P in the printer body 1. In preparation. Further, the ink jet printer 50 includes a loading unit 71, an edge guide 72, a feeding roller 73, and a retard roller that constitute an automatic feeding device that automatically feeds the recording paper P one by one toward the recording unit. 74 is provided. On the upper surface of the printer main body 1, a feeding opening 2 for supplying the recording paper P by the automatic feeding device is provided. The printer cover 5 opened in the direction indicated by the symbol B functions as a feeding tray on which the recording paper P fed by the automatic feeding device is placed.

  The placement portion 71 is disposed at a position facing the feeding opening 2. A known edge guide 72 is disposed on the placement portion 71 so as to be slidable in the width direction of the recording paper P (direction intersecting the transport direction Y), and the width of the recording paper P according to the size of the recording paper P. The mounting position in the direction can be defined. The recording paper P placed on the opened printer cover 5 is pressed against the outer peripheral surface of the feeding roller 73 by a hopper (not shown), and is driven to the transport driving roller 51 by the driving rotation of the feeding roller 73. It is sent toward. At this time, the other recording paper P is separated from the uppermost recording paper P by the known driven rotational resistance of the retard roller 74, and the double feeding of the recording paper P is prevented.

  The recording paper P fed by the driving rotation of the feeding roller 73 is sandwiched between the transport driving roller 51 and the transport driven roller 52, and the platen with a predetermined transport amount in the transport direction Y by the driving rotation of the transport driving roller 51. 53 is conveyed. At the bottom of the carriage 61, a recording head 62 that forms dots by ejecting ink onto the recording surface of the recording paper P is disposed. The carriage 61 is supported so as to be able to reciprocate in a direction substantially perpendicular to the transport direction Y while maintaining a state in which the head surface of the recording head 62 and the recording surface of the recording paper P on the platen 53 are substantially parallel and at a constant interval. Has been.

  The recording paper P conveyed on the platen 53 forms dots by ejecting ink from the head surface of the recording head 62 to the recording surface of the recording paper P while the carriage 61 reciprocates in a direction substantially perpendicular to the conveyance direction Y. Recording on the recording surface is executed by alternately repeating the operation of carrying out the recording paper P by the predetermined conveyance amount in the conveyance direction Y by the driving rotation of the conveyance driving roller 51. The recording paper P after ink ejection is sandwiched between the discharge drive roller 54 and the discharge driven roller 55 and is conveyed in the conveyance direction Y by the drive rotation of the discharge drive roller 54. The recording paper P after recording is discharged and stacked on the discharge tray 3 opened from the discharge port 7.

<Schematic configuration of operation panel>
Next, a schematic configuration of the operation panel 4 will be described with reference to FIGS.

FIG. 3 is a perspective view of the operation panel 4 with the liquid crystal display panel 10 closed. FIG. 4 is a perspective view of the operation panel 4 with the liquid crystal display panel 10 opened. FIG. 5 is a perspective view of the operation panel 4 as viewed from the back side.
A plurality of attachment portions 41 including claw portions or hole portions for attachment to the printer main body 1 are provided on the peripheral portion of the operation panel 4, and these engage with concave portions, convex portions, etc. provided in the printer main body 1. In this state, the operation panel 4 is attached to the printer main body 1. The cover bearing portion 42 supports the rotating shaft 6 of the printer cover 5. In addition, operation buttons 81 to 89 such as a record execution button are arranged on the operation panel 4 as illustrated. A liquid crystal display panel 10 as a “display” is pivotally supported on the liquid crystal panel mounting portion 43 of the operation panel 4 as a “base”.

  The liquid crystal display panel 10 can be used in a state where the liquid crystal display panel 10 is rotated rearward and accommodated in the liquid crystal panel mounting portion 43 (FIG. 3). (FIG. 4) can also be used. On the back side of the operation panel 4, a panel back cover 44 that covers the rotation support portion of the liquid crystal display panel 10 is disposed (FIG. 5).

<First Example of “Display Support Device”>
Next, a first embodiment of the “display support device” according to the present invention will be described with reference to FIGS.

  FIG. 6 is a perspective view of the operation panel 4 as viewed from the back side, and illustrates a state in which the panel back cover 44 is removed. 7 and 8 are enlarged perspective views of the rotation support portion of the liquid crystal display panel 10. FIG. 9 is a perspective view of a main part in which only the liquid crystal display panel 10 and the bearing component 45 are extracted and illustrated. FIG. 10 is a perspective view of the liquid crystal display panel 10. FIG. 11 is a perspective view of the bearing component 45, and FIG. 12 is a front view of the bearing component 45.

  The liquid crystal display panel 10 is provided with a shaft portion 11 as a “shaft body” serving as a rotation shaft, which is integrally formed on both side ends (FIG. 10). The shaft portion 11 has a portion where the distance from the shaft center to the outer peripheral surface is relatively different, and details will be described later. In the liquid crystal display panel 10, the shaft portions 11 at both ends are respectively supported by bearing components 45 as “bearing portions” and are pivotally supported (FIG. 9). The bearing component 45 has a flat mounting portion 451 and four support arm portions 453 as “support portions”. The four support arm portions 453 have a circular arc shape as shown in the figure, and are arranged apart from each other in the circumferential direction along the outer peripheral surface of the shaft portion 11 to be bearing. A mounting hole 452 is provided in a substantially central portion of the mounting portion 451 (FIGS. 11 and 12).

The bearing component 45 is fixed to the operation panel 4 in a state where the mounting hole 452 of the mounting portion 451 is fitted to the convex portion 46 provided on the operation panel 4. Around the four support arm portions 453, arc-shaped springs 47 as “pressing means” are provided around. The support arm portion 453 is provided with a convex portion 454 that prevents the spring 47 from falling off. The four support arm portions 453 are pressed against the outer peripheral surface of the shaft portion 11 by tightening with the spring force of the spring 47 (FIGS. 7 and 8).
FIG. 13 is a front view schematically showing an engagement state between the shaft portion 11 of the liquid crystal display panel 10 and the support arm portion 453 of the bearing component 45.

  FIG. 13A illustrates a state in which the liquid crystal display panel 10 is in a rotation position (rotation position in a substantially horizontal position) at an angle of approximately 0 degrees with respect to the upper surface of the operation panel 4. FIG. 13C illustrates a state in which the liquid crystal display panel 10 is in a rotational position where the liquid crystal display panel 10 is in a standing posture at an angle of approximately 45 degrees with respect to the upper surface of the operation panel 4. FIG. 13B illustrates a state in which the liquid crystal display panel 10 is in a substantially intermediate rotational position.

  As described above, the four support arm portions 453 of the bearing component 45 are pressed against the outer peripheral surface of the shaft portion 11 by tightening with the spring force of the spring 47 (FIGS. 7 and 8). Therefore, the shaft portion 11 of the liquid crystal display panel 10 is supported by the four support arm portions 453 in a state where the outer peripheral surface of the shaft portion 11 is in sliding contact with the inner peripheral surfaces of the four support arm portions 453. Thereby, the liquid crystal display panel 10 can be rotated in a state in which a rotational resistance due to a frictional force generated on a sliding contact surface between the outer peripheral surface of the shaft portion 11 and the inner peripheral surfaces of the four support arm portions 453 is given. It is pivotally supported on the operation panel 4.

  The axial part 11 has a part from which the distance from an axial center to an outer peripheral surface differs relatively. More specifically, the shaft portion 11 has a regular octagonal cross-sectional shape in a direction intersecting with the axis as shown in the figure. That is, the regular octagonal corner portion 111 is a portion having a relatively long distance from the axial center to the outer peripheral surface (hereinafter simply referred to as “corner portion 111”), and the regular octagonal side portion 112 is from the axial center. That is, a portion having a relatively short distance to the outer peripheral surface (hereinafter, simply referred to as “side portion 112”).

  When the liquid crystal display panel 10 is rotated in the rotation direction indicated by reference numeral C from the state illustrated in FIG. 13A, the four support arm portions 453 of the bearing component 45 are arranged on the outer peripheral surface of the shaft portion 11. It is in sliding contact with the corner portion 111, thereby displacing outward E against the spring force of the spring 47 (FIG. 13B). Then, when the liquid crystal display panel 10 is further rotated in the direction indicated by C, the four support arm portions 453 of the bearing component 45 are brought into sliding contact with the side portion 112 of the outer peripheral surface of the shaft portion 11, thereby Then, it is displaced inward D by the spring force of the spring 47 (FIG. 13C). That is, the liquid crystal display panel 10 is pivoted in a state in which the corner portion 111 of the outer peripheral surface of the shaft portion 11 is urged to the rotational position located between the support arm portions 453 of the bearing component 45 by the spring force of the spring 47. Be supported.

  Further, in a state where the corner portion 111 of the outer peripheral surface of the shaft portion 11 is between the support arm portions 453 of the bearing component 45, the corner portion 111 of the outer peripheral surface of the shaft portion 11 is between the support arm portions 453 as illustrated. It engages so that it may fit (FIG. 13 (a), FIG.13 (c)). In this state, the liquid crystal display panel 10 includes the outer peripheral surface of the shaft portion 11 in addition to the rotational resistance caused by the frictional force generated on the sliding surface between the outer peripheral surface of the shaft portion 11 and the inner peripheral surfaces of the four support arm portions 453. Rotation is locked in a state where the corner portion 111 is held with a narrow pressure between the support arm portions 453. Accordingly, the liquid crystal display panel 10 is turned to a horizontal position (FIG. 13 (a)) at an angle of about 0 degrees with respect to the upper surface of the operation panel 4, and is turned to an upright position at an angle of about 45 degrees. At the position (FIG. 13 (c)) and the rotation position (not shown) in the standing posture at an angle of approximately 90 degrees, the rotation position is held most firmly.

  On the other hand, in the rotation position where the corner portion 111 of the outer peripheral surface of the shaft portion 11 is in sliding contact with the inner peripheral surface of the support arm portion 453 of the bearing component 45, the liquid crystal display panel 10 It is held only by the rotational resistance due to the frictional force generated on the sliding contact surface with the inner peripheral surface of the support arm 453 (FIG. 13B). Accordingly, the liquid crystal display panel 10 in the state illustrated in FIG. 13B is in a state where it can be easily rotated by lightly touching the user, or the upper surface of the operation panel 4 by the spring force of the spring 47. Rotation to either the rotation position (FIG. 13 (a)) that assumes a horizontal posture at an angle of approximately 0 degrees or the rotation position (FIG. 13 (c)) that results in a standing posture at an angle of approximately 45 degrees. Will move.

  Thus, according to the “display support device” according to the present invention, the liquid crystal display panel 10 is securely held in a desired rotation posture without deteriorating operability when the liquid crystal display panel 10 is rotated. can do.

  Further, a shaft portion having a plurality of portions (corner portions 111) having a relatively long distance from the shaft center to the outer peripheral surface by the shaft portion 11 having a polygonal shape such as a regular octagon in a cross-section direction intersecting the shaft center 11 can be easily realized. Then, as shown in the figure, if the support arm portions 453 are respectively arranged in accordance with the interval between the corner portions 111 of the shaft portion 11, the corner portions 111 of the shaft portion 11 are simultaneously fitted between the support arm portions 453. Can be engaged.

  That is, a plurality of fitting portions between the corner portion 111 of the shaft portion 11 and the support arm portion 453 are distributed in the circumferential direction, and even by fitting them at the desired rotational position of the liquid crystal display panel 10 almost simultaneously, The liquid crystal display panel 10 can be held more stably at a desired rotation position. Moreover, since the holding force in each fitting part can be made small, the possibility that the operativity at the time of rotating the liquid crystal display panel 10 falls can be reduced more.

  Needless to say, the present invention can be implemented even if the shaft 11 is provided on the operation panel 4 and the bearing component 45 is provided on the liquid crystal display panel 10.

<Second embodiment of "display support device">
Next, a second embodiment of the “display support device” according to the present invention will be described with reference to FIG. Since the second embodiment is the same as the first embodiment except that the shape of the shaft portion 11 is different, illustration and description of common portions are omitted.

  FIG. 14 is a front view schematically showing an engagement state between the shaft portion 11 of the liquid crystal display panel 10 and the support arm portion 453 of the bearing component 45 in the second embodiment.

  FIG. 14A illustrates a state in which the liquid crystal display panel 10 is in a rotation position (rotation position in a substantially horizontal position) at an angle of approximately 0 degrees with respect to the upper surface of the operation panel 4. FIG. 14C illustrates a state in which the liquid crystal display panel 10 is in a rotational position where the liquid crystal display panel 10 is in a standing posture at an angle of approximately 90 degrees with respect to the upper surface of the operation panel 4. FIG. 14B illustrates a state in which the liquid crystal display panel 10 is in a rotation position at an angle of about 45 degrees that is an approximately intermediate rotation position.

  As shown in the drawing, the shaft part 11 in the second embodiment has an elliptical cross-sectional shape in a direction intersecting the axis. That is, the outer peripheral surface 113 having the longest elliptical radius is a portion having a relatively long distance from the axial center to the outer peripheral surface (hereinafter, simply referred to as “long-axis portion 113”).

  When the liquid crystal display panel 10 is rotated in the rotation direction indicated by reference numeral C from the state illustrated in FIG. 14A, the four support arm portions 453 of the bearing component 45 are arranged on the outer peripheral surface of the shaft portion 11. It slides into contact with the long shaft portion 113, and thereby displaces outward E against the spring force of the spring 47 (FIG. 14B). Then, when the liquid crystal display panel 10 is further rotated in the direction indicated by the symbol C, the four support arm portions 453 of the bearing component 45 are slid with portions other than the long axis portion 113 on the outer peripheral surface of the shaft portion 11. It contacts and thereby is displaced inward D by the spring force of the spring 47 (FIG. 14C). That is, the liquid crystal display panel 10 is in a state in which the long shaft portion 113 of the outer peripheral surface of the shaft portion 11 is urged to the rotational position located between the support arm portions 453 of the bearing component 45 by the spring force of the spring 47. It is pivotally supported.

  Further, in a state where the long axis portion 113 on the outer peripheral surface of the shaft portion 11 is between the support arm portions 453 of the bearing component 45, the long axis portion 113 on the outer peripheral surface of the shaft portion 11 is the support arm portion 453 as shown in the figure. It engages so that it may fit between (FIG. 14 (a), FIG.14 (c)). In this state, the liquid crystal display panel 10 includes the outer peripheral surface of the shaft portion 11 in addition to the rotational resistance caused by the frictional force generated on the sliding surface between the outer peripheral surface of the shaft portion 11 and the inner peripheral surfaces of the four support arm portions 453. The long shaft portion 113 is held narrowly between the support arm portions 453 so that the rotation is locked. Accordingly, the liquid crystal display panel 10 is rotated to a horizontal position (FIG. 14 (a)) at an angle of approximately 0 degrees with respect to the upper surface of the operation panel 4 and to be in a standing position at an angle of approximately 90 degrees. At the position (FIG. 14C), the rotational position is most firmly held.

  On the other hand, in the rotation position where the long axis portion 113 of the outer peripheral surface of the shaft portion 11 is in sliding contact with the inner peripheral surface of the support arm portion 453 of the bearing part 45, the liquid crystal display panel 10 is connected to the outer peripheral surface of the shaft portion 11. It is held only by the rotational resistance due to the frictional force generated on the sliding contact surface with the inner peripheral surface of the two support arm portions 453 (FIG. 14B). Accordingly, the liquid crystal display panel 10 in the state illustrated in FIG. 14B is in a state where the liquid crystal display panel 10 can be easily rotated just by lightly touching the user, or the upper surface of the operation panel 4 by the spring force of the spring 47. Rotate to either the rotation position (FIG. 14 (a)) where the horizontal posture is at an angle of approximately 0 degrees or the rotation position (FIG. 14 (c)) where the posture is a standing posture at an angle of approximately 90 degrees. Will move.

  Thus, according to the “display support device” according to the present invention, the liquid crystal display panel 10 is securely held in a desired rotation posture without deteriorating operability when the liquid crystal display panel 10 is rotated. can do.

<Third embodiment of "display support device">
Next, a third embodiment of the “display support device” according to the present invention will be described with reference to FIGS. 15 and 16. Since the third embodiment is the same as the first embodiment except that the shapes of the shaft portion 11 and the bearing component 45 are different, illustration and description of common parts are omitted.

FIG. 15 is a perspective view of the bearing component 45 in the third embodiment.
FIG. 16 is a front view schematically showing an engaged state between the shaft portion 11 of the liquid crystal display panel 10 and the support arm portion 453 of the bearing component 45 in the third embodiment.

  FIG. 16A illustrates a state in which the liquid crystal display panel 10 is in a rotation position (rotation position in a substantially horizontal position) at an angle of approximately 0 degrees with respect to the upper surface of the operation panel 4. FIG. 16C illustrates a state in which the liquid crystal display panel 10 is in a rotation position where the liquid crystal display panel 10 is in a standing posture at an angle of approximately 45 degrees with respect to the upper surface of the operation panel 4. FIG. 16B illustrates a state in which the liquid crystal display panel 10 is in a substantially intermediate rotational position.

  The bearing component 45 in the third embodiment has eight support arm portions 453 as “support portions”. The eight support arm portions 453 have a circular arc shape as shown in the figure, and are arranged apart from each other in the circumferential direction along the outer peripheral surface of the shaft portion 11 to be bearing. It should be noted that the spring 47 is prevented from falling off at a point fixed to the operation panel 4 with the mounting hole 452 of the mounting portion 451 fitted to the convex portion 46 provided on the operation panel 4. The point provided with the convex portion 454 is the same as that of the bearing component 45 in the first embodiment.

  As shown in the figure, the shaft portion 11 in the third embodiment has a shape in which eight protrusions 114 along the axial direction are provided at equal intervals on the outer peripheral surface of the cylindrical body. That is, the portion where the protruding portion 114 is provided is a portion where the distance from the axial center to the outer peripheral surface is relatively long. In the protrusion 114, the second inclined surface 117 from the top 115 to the other side in the circumferential direction is a gentler inclined surface than the first inclined surface 116 from the top 115 to the one side in the circumferential direction.

  When the liquid crystal display panel 10 is rotated from the state illustrated in FIG. 16A in the rotation direction indicated by the symbol C, the eight support arm portions 453 of the bearing component 45 are arranged on the outer peripheral surface of the shaft portion 11. The slidable contact is made from the second inclined surface 117 to the top portion 115, thereby displacing outward E against the spring force of the spring 47 (FIG. 16B). When the liquid crystal display panel 10 is further rotated in the direction indicated by the symbol C, the eight support arm portions 453 of the bearing component 45 are moved from the top 115 of the outer peripheral surface of the shaft portion 11 to the first inclined surface 116. And is displaced inward D by the spring force of the spring 47 (FIG. 16C). That is, the liquid crystal display panel 10 is pivotally supported in a state where the top portion 115 of the outer peripheral surface of the shaft portion 11 is urged to the rotational position located between the support arm portions 453 of the bearing component 45 by the spring force of the spring 47. Is done.

  Further, when the top 115 of the outer peripheral surface of the shaft portion 11 is between the support arm portions 453 of the bearing component 45, the top 115 of the outer peripheral surface of the shaft portion 11 is fitted between the support arm portions 453 as shown in the figure. (FIGS. 16A and 16C). In this state, the liquid crystal display panel 10 includes the outer peripheral surface of the shaft portion 11 in addition to the rotational resistance caused by the frictional force generated on the sliding contact surface between the outer peripheral surface of the shaft portion 11 and the inner peripheral surfaces of the eight support arm portions 453. The top portion 115 is held in a narrow pressure between the support arm portions 453 so that the rotation is locked. Therefore, the liquid crystal display panel 10 is rotated to a horizontal position (FIG. 16A) at an angle of approximately 0 degrees with respect to the upper surface of the operation panel 4, and to be turned to an upright position at an angle of approximately 45 degrees. At the position (FIG. 16 (c)) and the rotation position (not shown) in the standing posture at an angle of approximately 90 degrees, the rotation position is most firmly held.

  On the other hand, the liquid crystal display panel 10 has the outer peripheral surface of the shaft portion 11 and the eight support portions at the rotational position where the top portion 115 of the outer peripheral surface of the shaft portion 11 is in sliding contact with the inner peripheral surface of the support arm portion 453 of the bearing component 45. It is held only by the rotational resistance due to the frictional force generated on the sliding contact surface with the inner peripheral surface of the arm portion 453 (FIG. 16B). Accordingly, the liquid crystal display panel 10 in the state illustrated in FIG. 16B can be easily rotated by lightly touching the user, or the upper surface of the operation panel 4 can be driven by the spring force of the spring 47. Rotate to either the rotation position (FIG. 16 (a)) in which the horizontal posture is at an angle of approximately 0 degrees or the rotation position (FIG. 16 (c)) in the standing posture at an angle of approximately 45 degrees. Will move.

  Thus, according to the “display support device” according to the present invention, the liquid crystal display panel 10 is securely held in a desired rotation posture without deteriorating operability when the liquid crystal display panel 10 is rotated. can do.

  Further, when the liquid crystal display panel 10 is rotated in the rotation direction indicated by the symbol C from the state illustrated in FIG. 16A, the eight support arm portions 453 of the bearing component 45 are provided with the spring 47. While being displaced outward E against the spring force, the outer peripheral surface of the shaft portion 11 is in sliding contact with the relatively gentle second inclined surface 117 to the top portion 115. Conversely, when the liquid crystal display panel 10 is rotated in the direction opposite to the rotation direction indicated by the symbol C from the state illustrated in FIG. 16C, the eight support arm portions 453 of the bearing component 45 are In this manner, the outer peripheral surface of the shaft portion 11 is slidably contacted from the relatively steep first inclined surface 116 to the top portion 115 while being displaced outward E against the spring force of the spring 47.

  That is, in the third embodiment, the rotation resistance when the liquid crystal display panel 10 is rotated to one side is different from the rotation resistance when the liquid crystal display panel 10 is rotated to the other side. Accordingly, when the liquid crystal display panel 10 is rotated from the horizontal rotation position (FIG. 16A) to the rotation position (FIG. 16C) in the standing position, the liquid crystal display panel 10 Smooth rotation operation can be realized. On the other hand, the rotation resistance when the liquid crystal display panel 10 is rotated from the rotation position (FIG. 16C) in the standing position to the horizontal rotation position (FIG. 16A) is relatively strong. Therefore, it is possible to prevent the liquid crystal display panel 10 from gradually rotating backward by touching and operating the display screen of the liquid crystal display panel 10 in the standing posture.

<Other Examples of “Display Support Device”>
In any of the first to third embodiments described above, it is possible to further provide an urging means for urging the liquid crystal display panel 10 in any one of the rotating directions. More specifically, for example, a spring such as a helical spring, a torsion coil spring, or a leaf spring may be disposed so as to push the rear surface side of the liquid crystal display panel 10 forward. As a result, the liquid crystal display panel 10 can be rotated more smoothly in the direction to stand forward. In addition, the liquid crystal display panel 10 can be automatically rotated to a desired rotation position by the spring force. Therefore, the operability when the liquid crystal display panel 10 is rotated can be further improved.

  The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the invention described in the claims, and these are also included in the scope of the present invention. Needless to say.

1 is an external perspective view of an inkjet printer. The principal part sectional side view of an inkjet printer. The perspective view of the operation panel of the state which closed the liquid crystal display panel. The perspective view of the operation panel of the state which opened the liquid crystal display panel. The perspective view which looked at the operation panel from the back side. The figure shows the state where the back cover of the operation panel is removed. The perspective view which expanded and illustrated one side of the rotation support part of a liquid crystal display panel. The perspective view which expanded and illustrated the other side of the rotation support part of a liquid crystal display panel. The principal part perspective view which extracted and illustrated only the liquid crystal display panel and the bearing component. The perspective view of a liquid crystal display panel. The perspective view of a bearing component. The front view of a bearing component. The front view of the engagement state of the axial part and support arm part in 1st Example. The front view of the engagement state of the axial part and support arm part in 2nd Example. The perspective view of the bearing components in 2nd Example. The front view of the engagement state of the axial part and support arm part in 3rd Example.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Printer main body, 4 Operation panel, 10 Liquid crystal display panel, 11 Shaft part, 45 Bearing parts, 47 Spring, 50 Inkjet printer, 51 Conveyance drive roller, 52 Conveyance driven roller, 53 Platen, 54 Discharge drive roller, 55 Discharge follower roller , 61 Carriage, 62 Recording head, 111 corner portion, 112 side portion, 113 long axis portion, 114 ridge portion, 115 top portion, 116 first inclined surface, 117 second inclined surface, 451 mounting portion, 452 mounting hole, 453 Support arm portion, 454 convex portion, P recording paper, Y recording paper transport direction

Claims (6)

A display support device for rotatably supporting a display on a base,
A shaft body that is provided on either the base body or the display and serves as a rotation axis of the display, and has a portion having a relatively different distance from the axial center to the outer peripheral surface;
A bearing portion provided on the other side of the base body or the display, and having a plurality of support portions arranged to be spaced apart from each other in a circumferential direction along an outer peripheral surface of the shaft body, bearing the shaft body;
And a pressing unit that presses the plurality of support portions against the outer peripheral surface of the shaft body.   2. The display device supporting apparatus according to claim 1, wherein the shaft body has a polygonal cross-sectional shape in a direction intersecting the axis.   3. The display device supporting apparatus according to claim 1, wherein an outer peripheral surface of the shaft body is provided with a protrusion along the axial direction of the shaft body. 4.   The display support device according to any one of claims 1 to 3, wherein a portion having a relatively long distance from the axial center of the shaft body to the outer peripheral surface extends from the top of the portion to one side in the circumferential direction. A display support device, wherein the inclined surface from the top of the portion to the other side in the circumferential direction is a gentler inclined surface than the inclined surface.   The display device support apparatus according to any one of claims 1 to 4, further comprising an urging unit that urges the display device in any one of rotation directions. apparatus.   An electronic device comprising a display and the display support device according to any one of claims 1 to 5.

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