JP4921733B2 - Panel drive device - Google Patents

Description

  The present invention relates to a technique for driving a panel including a display device such as an electronic device, and more particularly to a panel drive device in which a mechanism for changing the angle of the panel is improved.

  In recent years, in-vehicle electronic devices have become more and more multifunctional, and the recording media that can be used are not only for audio such as CD and MD, but also for video such as DVD and CD-ROM. . At the same time, in-vehicle electronic devices equipped with relatively large display devices are generally used so that various displays such as navigation images, TV and DVD images, etc., can be used instead of conventional display devices that only display functions. It is becoming.

Such a display device for an in-vehicle electronic device has a space restriction in a vehicle, and therefore, as shown in Patent Document 1, many display devices are provided on a panel configured to be openable and closable on the front surface of the electronic device. . When the panel is in the upright closed state, the insertion opening for the recording medium formed on the front surface of the electronic device is covered. When the panel is in the open state, the insertion opening is exposed and the recording medium is inserted. It is configured to be drainable. Further, as a specific configuration for opening and closing the panel, techniques as shown in Patent Documents 2 and 3 have been proposed.
JP 2001-57067 A JP 2002-74923 A JP 2003-69920 A

  However, in the electronic apparatus as described above, the mechanism for opening and closing the panel is provided on the main body side of the electronic apparatus, and requires a large required space inside the main body. In particular, not only when using a long rack or arm as in Patent Document 3, but also when storing a panel in the main body as in Patent Document 2, a much larger space is required. In addition, when a mechanism for opening and closing the panel is provided inside the main body in this way, it takes a lot of work to attach the panel to the main body in the manufacturing process, which hinders efficient production.

  Furthermore, it is preferable that the degree of freedom in the opening and closing direction of the panel is high so that the display device can be easily seen according to the position of the user. However, such a degree of freedom is provided by a mechanism provided on the main body side of the electronic device. In this case, the apparatus may be further complicated and enlarged.

  The present invention has been proposed in order to solve the above-described problems of the prior art, and the object thereof is not to provide a special mechanism inside the device body, and can be easily attached to the device body. An object of the present invention is to provide a panel drive device that can be performed and that is small and has a high degree of freedom in posture.

In order to achieve the above object, the invention of claim 1 includes an attachment portion that can be attached to a device, a panel that is displaceable with respect to the attachment portion, and a drive portion that displaces the panel. In the panel drive device, the arm is rotatably connected to the mounting portion, and the other end of the arm is rotatably connected to the panel. An angle adjusting mechanism for displacing the arm portion and the panel by transmitting force to the arm portion and the panel is provided, and the angle adjusting mechanism is configured to adjust the angle of the panel with respect to the arm portion. A panel gear fixed to the panel, and a gear that is provided on the arm portion and that displaces the panel by transmitting a driving force of the driving unit to the panel gear. Gear for displacing the panel, by the said Panerugiya engagement with a positive operating state in which the panel is displaced with said arm portion while rotating in a different direction as the arm portion, not engage the Panerugiya By being in a state, the panel is provided so as to be switchable between a reverse operation state in which the panel is displaced together with the arm portion while maintaining a predetermined angle with respect to the arm portion.

In the invention of claim 1 as described above, the connection of the angle adjusting mechanism that transmits the driving force of the driving unit to the arm unit and the panel is configured to be able to be maintained and released, so that the panel is properly aligned with the rotating arm unit. It can be rotated in both reverse directions. Therefore, the panel angle can be adjusted to a posture that is easy for the user to view without selecting an attachment posture angle. In addition, in the rotation of the arm portion in the same direction, it is possible to switch between the case where the panel rotates and the case where the panel does not rotate, so that interference with equipment such as the case where the panel always rotates together with the arm is prevented, The size in the depth direction can be kept thin.

Further, the engagement and disengagement of the gear can realize the maintenance and release of the coupling of the angle adjusting mechanism , so that the structure is simple and the size reduction can be maintained.

According to a second aspect of the present invention, in the panel drive device according to the first aspect, the angle adjusting mechanism includes a fixed gear fixed to the mounting portion and a configuration for adjusting the angle of the arm portion. And an idle gear that rotates the arm portion by rotating with the driving force of the drive portion while being engaged with the fixed gear, and the fixed gear is one of the idle gears. It has a conversion part which converts rotation in the direction and rotation in the opposite direction into rotation in one direction of the arm part.
According to a third aspect of the present invention, in the panel drive device according to the second aspect, the mounting portion has a release portion for releasing the engagement between the fixed gear and the idle gear, and the conversion portion is the release portion. A portion that converts the rotation of the idle gear in one direction into rotation of the arm portion, and a portion that converts the rotation of the idle gear in the reverse direction into rotation of the arm portion It is characterized by having.
According to a fourth aspect of the present invention, there is provided a panel driving apparatus comprising: a mounting portion that can be attached to a device; a panel that is displaceable with respect to the mounting portion; and a driving portion that displaces the panel. The one end of the arm part is rotatably connected to the panel, and the other end of the arm part is rotatably connected to the panel, and the driving force of the driving part is transmitted to the arm part and the panel. Accordingly, an angle adjustment mechanism for displacing the arm portion and the panel is provided, and the angle adjustment mechanism is configured to adjust the angle of the arm portion, and a fixed gear fixed to the attachment portion; An idle gear which is provided on the arm portion and rotates by the driving force of the drive portion while being engaged with the fixed gear, and the fixed gear is provided with the idle gear. And rotation in the rotation and which the opposite direction to the direction of the gear, and having a conversion unit for converting into rotation in one direction of the arm portion.

In the inventions as described above, the arm portion can be rotated in the same direction regardless of the rotation direction of the idle gear. Therefore, when the idle gear is rotated in one direction, the panel is in the normal operation state, and when the idle gear is rotated in the other direction, the panel is in the reverse operation state. Two types of operation modes can be identified by the difference in direction.

Further , the panel can be operated in both the forward and reverse directions only by the combination of the panel gear and the fixed gear in the angle adjusting mechanism without requiring any special mechanism on the device side. Therefore, the internal space of the device can be effectively used, and the entire device to which the panel is attached can be reduced in size. Furthermore, the panel can be attached to the device only by attaching the attachment portion to the device, so that it does not take time and effort to connect and connect with a mechanism inside the device. This greatly simplifies the manufacturing process, leading to improved production efficiency and quality, and cost reduction.

According to a fifth aspect of the present invention, in the panel drive device according to any one of the first to fourth aspects, the drive unit is built in the panel.
In the invention of claim 5 as described above, since the drive unit is built in the panel, the members disposed around the panel can be further simplified.

  According to the present invention as described above, there is no need to provide a special mechanism inside the apparatus main body, and it is possible to easily attach the apparatus to the apparatus main body, and to provide a small panel drive device having a high degree of freedom in posture. can do.

  Hereinafter, an embodiment of an in-vehicle panel drive device to which the present invention is applied (hereinafter referred to as this embodiment) will be described in detail with reference to the drawings. In the following description, the front side is the front, the back side is the rear, and the up, down, left, and right directions correspond to the directions when viewed from the front side of the panel, based on the upright state of the panel. .

[A. overall structure]
As shown in FIGS. 1 and 2, the present embodiment has the following schematic configuration.
(1) Panel 100 provided with display device 101
(2) Drive mechanism 200 built in the back of panel 100
(3) Angle adjustment mechanism 300 built in the side of panel 100
(4) In-vehicle electronic device main body 400 to which panel 100 is attached

[B. Configuration of each part]
[1. Panel (Fig. 1, Fig. 2)]
As shown in FIGS. 1 and 2, the panel 100 is a rectangular member having a display device 101 such as a liquid crystal on the front side. A drive mechanism 200 is built in the back side of the display device 101 in the panel 100. In addition, an angle adjusting mechanism 300 that changes the angle of the panel 100 by being driven by the drive mechanism 200 is incorporated in the left and right sides of the panel 100.

[2. Drive mechanism (FIGS. 1, 3 to 5)]
As shown in FIGS. 1 and 3, the drive mechanism 200 includes a motor 210, a helical bar spur gear 212, a rotation detection unit 240, a spur-worm worm 213, a clutch unit 220, and a posture state detection unit 250. The motor 210 is disposed in the vicinity of the upper right corner of the panel 100 so that its shaft is parallel to the panel 100 and the display device 101 and is in the horizontal direction. A worm 211 is press-fitted into the shaft of the motor 210, and the driving force of the motor 210 is transmitted to the Hasuba-spur gear 212, the rotation detector 240, the spur-worm 213, and the clutch unit 220. ing.

[2-1. Rotation detector (FIGS. 1 and 3)]
The rotation detection unit 240 includes a spur gear 241 and a sensor 243 as shown in FIGS. 1 and 3. The spur gear 241 is provided to be rotatable around an axis in a direction orthogonal to the shaft of the motor 210. Further, radial reflectors 242 are formed at equal intervals on the rear surface of the spur gear 241. The sensor 243 is a reflection type photointerrupter, and can detect the rotation count value of the spur gear 241 by detecting the presence / absence of reflection of light from the light emitting diode to the reflection material 242. The sensor 243 is fixed to a substrate on a mounting plate fixed to the panel 100.

[2-2. Posture state detector (FIGS. 1 and 3)]
As shown in FIGS. 1 and 3, the posture state detection unit 250 of the panel 100 includes a connection arm 253, a switch arm 251 that rotates when the driving force of the connection arm 253 is transmitted, and a rotation position of the switch arm 251. Thus, a plurality of switches 252 for detecting the posture state of the panel 100 are provided. Since the connecting arm 253 is press-fitted into the connecting arm shaft 255 attached to the arm 330, the connecting arm 253 is configured to rotate in synchronization with the arm 330.

  When the connecting arm 253 and the end of the switch arm 251 are engaged, the driving force of the connecting arm 253 is transmitted by being converted by 90 degrees in the axial direction, and the switch arm 251 is rotated. . As the switch arm 251 rotates, each end thereof presses the corresponding switch 252. The switch 252 in the figure is fixed to a substrate on a mounting plate fixed to the panel 100 by a reverse tilt end detection switch 252a, a panel close end detection switch 252b, and a panel open end detection switch 252c from the top. Further, the switch arm 251 is biased downward in the drawing by a spring 254.

[2-3. Clutch part (FIGS. 1 and 3 to 5)]
As shown in FIG. 1 and FIGS. 3 to 5, the clutch unit 220 incorporates a helical gear 221, a clutch 222, and a disc spring 223 on the shaft of a drive gear 320 described later. As shown in FIGS. 4C and 4D, the cylindrical clutch 222 has an inner protrusion 222b incorporated in a groove formed on the shaft of the drive gear 320. 320 is configured to rotate integrally. The helical gear 221 is also cylindrical, and a cam portion (concave) 221a is formed on the surface facing the clutch 222, as shown in FIGS. On the other hand, a cam portion (convex) 222 a is formed on the surface of the clutch 222 that faces the helical gear 221. The cam portions 221a and 222a have the same unevenness.

  As shown in FIG. 5, a disc spring 223 is disposed between the drive gear 320 and the clutch 222, and a bush with respect to the drive gear 320 at the end opposite to the helical gear 221. 224 is incorporated. For this reason, the clutch 222 is biased toward the helical gear 221 by the disc spring 223, and the clutch 222 rotates integrally with the helical gear 221. Accordingly, the driving force transmitted from the motor 210 to the helical gear 221 is normally transmitted to the driving gear 320 via the clutch 222 in the same rotational state. However, when the user touches the panel 100 in the middle of the rotation or in the open state, when a force is applied in a direction to stop or advance the rotation, the clutch 222 is slid to the disc spring 223 side by the cam portions 221a and 222a. Therefore, the clutch 222 rotates independently from the helical gear 221.

[2-4. Arrangement of drive mechanism gears]
In the drive mechanism 200 described above, the planes of the relatively large diameter members such as the helical gears 212, the rotation detector 240, the flat teeth-worm 213, and the switch arm 251 are all on the display surface of the display device 101. It is arranged in a direction parallel to the axis (direction in which the axis is orthogonal to the display device 101). In addition, the relatively small and long members such as the motor 210, the clutch unit 220, the connecting arm 253, and the connecting arm shaft 255 are arranged in a direction parallel to the display device 101. Accordingly, all functions are accommodated in a thin space on the back surface of the display device 101 in the panel 100.

[3. Angle adjustment mechanism (FIGS. 3, 6-12, and 15)]
3 and 6A and 6B, the angle adjusting mechanism 300 includes a mounting plate 370, an arm 330, a panel gear 310, a drive gear 320, a spur double gear 340, an idle gear 350, an idle gear 360, and an attachment. A plate 370 is provided. The mounting plate 370 is a plate that is fixed to the left and right main body plates 410 of the main body 400 as shown in FIG. 7 (panel right side) and FIG. 8 (panel left side). Although not illustrated, a plurality of media insertion openings for inserting a recording medium are provided on the front surface of the main body 400.

  The mounting plate 370 is provided with fixed gears 370a and 370b as shown in FIG. Fixed gear 370b is a fan-shaped arcuate gear. The fixed gear 370a is a gear provided so as to face the upper part of the rear end of the fixed gear 370b. An arcuate curved portion 370c is provided between the fixed gear 370a and the fixed gear 370b. Further, a part of the fixed gear 370a, the fixed gear 370b opposite to the fixed gear 370a, and the curved part 370c are thinner tooth width portions 370d (indicated by hatching in the drawing) than the other parts. The fixed gears 370a and 370b may be formed integrally with the mounting plate 370 or may be formed separately and fixed to each other.

  The lower end of the arm 330 is attached so as to be rotatable about the center of the fixed gear 370b (vertical apex of the fan-shaped right-angled portion) of the left and right attachment plates 370. On the other hand, the upper end of the arm 330 is attached to the left and right of the panel 100 so as to be rotatable. A panel gear 310 coaxial with the pivot shaft at the upper end of the arm 330 is fixed between the upper end of the arm 330 in the panel 100. As shown in FIG. 9, the panel gear 310 has an arc-shaped gear, and a portion that becomes the lower end when the panel 100 stands upright (for example, one tooth indicated by hatching in the figure) is a thin tooth width small portion. 310a. A driving gear 320 is provided between the panel 100 and the arm 330 so as to be coaxial with the panel gear 310 and rotate independently of the panel gear 310. The shaft of the drive gear 320 is connected to the clutch portion 220 inside the panel 100 as described above.

  Further, a spur double gear 340 that is engaged with the drive gear 320 and the panel gear 310 and transmits the driving force of the drive gear 320 to the panel gear 310 is pivotally supported on the arm 330. As shown in FIG. 10, the flat tooth double gear 340 is provided with a thin-walled small tooth width portion 340 a on a part of the gear engaged with the panel gear 310 (for example, three teeth shown by hatching in the figure). ing. The small tooth width portion 340 a of the flat tooth double gear 340 is not engaged with each other in a range corresponding to the small tooth width portion 310 a of the panel gear 310.

An idle gear 350 and an idle gear 360 are pivotally supported between the spur double gear 340 and the fixed gears 370a and 370b in the arm 330 in the order of engagement. Therefore, the driving force of the driving gear 320 is transmitted to the idle gear 360 via the spur double gear 340 and the idle gear 350. As shown in FIG. 11, the idle gear 360 that engages with the fixed gears 370a and 370b is provided with a thick tooth width large portion 360a (shown by hatching in the drawing) and a thin tooth width small portion 360b. Yes. The small tooth width portions 360b are not engaged with each other in a range corresponding to the small gear width portions 370d of the fixed gear 370a, the fixed gear 370b, and the curved portion 370c. That is, the release portion is configured by the curved portion 370c .

When the tooth width large portion 360a of the idle gear 360 is rotated clockwise from the state shown in FIG. 15B (closed state), as shown in FIG. 15A, engagement with the fixed gear 370a is started. The engagement with the fixed gear 370b is released. On the contrary, when it rotates counterclockwise, as shown in FIG. 15C, the engagement with the fixed gear 370b is started and the engagement with the fixed gear 370a is released. Therefore, the idle gear 360 urges the arm 330 forward regardless of whether the idle gear 360 rotates counterclockwise or clockwise with the curved portion 370c interposed therebetween. That is, the conversion unit is configured by the fixed gears 370a and 370b .

  As shown in FIGS. 7 and 8, the left and right arms 330 are urged by a torsion coil spring 331 in a direction in which the panel 100 stands upright and closes. The torsion coil spring 331 is supported by inserting the shaft 102 through the coil portion.

[4. Control device]
The operation of the motor 210 includes a switch disposed on the panel 100, a touch panel of the display device 101, input operations from various input means such as an external remote controller, a detection signal from the sensor 243 of the rotation detector 240, and an attitude state detector. Based on detection signals from 250 switches 252 and the like, control is performed by the control device. This control device can be realized by, for example, a dedicated electronic circuit or a computer operating with a predetermined program. Therefore, a computer program for controlling the operation of the apparatus according to the procedure described below and a recording medium recording the computer program are also one aspect of the present invention.

[C. Action]
The operation of the present embodiment as described above will be described with reference to the above-described configuration diagram and the operation diagrams of FIGS. Note that in the perspective views of FIGS. 16 to 19, a part of the structure is omitted in order to improve visibility.
[1. Operation to open the panel]
First, in the initial state, as shown in FIGS. 13D and 16, the panel 100 is in an upright state (closed state, closed state), and the display device 101 faces the front side. In this state, when an input means such as an operation start switch is operated to expose the media insertion opening provided on the front surface of the main body 400, the motor 210 is activated. As a result, as shown in FIGS. 3 and 6, the driving force of the motor 210 is transmitted from the worm 211 to the helical bar-spur gear 212, the rotation detecting unit 240, the flat tooth-worm 213, and the helical gear 221, and the helical gear 221. The drive gear 320 that rotates integrally with the motor rotates in the clockwise direction (as viewed from FIG. 6).

  Then, the spur double gear 340 that engages with the drive gear 320 rotates counterclockwise, and the panel gear 310 that engages with the spur double gear 340 rotates clockwise, so that the panel 100 rotates in the clockwise direction. The operation starts (FIG. 14C). Further, the driving force is transmitted from the spur double gear 340 to the idle gear 350 and the idle gear 360, and the idle gear 360 rotates counterclockwise.

  At this time, as shown in FIG. 15C, the large tooth width portion 360a of the idle gear 360 is engaged with the fixed gear 370b, so that the arm 330 is urged counterclockwise to start a revolving operation. Accordingly, since the panel 100 performs the revolving operation in the counterclockwise direction by the arm 330 while performing the rotation operation in the clockwise direction, the arm 330 is moved forward as shown in FIGS. And the operation of tilting the display device 101 of the panel 100 so as to face upward is performed.

  At this time, as shown in FIGS. 1 and 3, the connecting arm 253 at the tip of the connecting arm shaft 255 attached to the arm 330 rotates counterclockwise in synchronization with the counterclockwise rotation of the arm 330. Move. Then, the switch arm 251 that has been engaged with the connecting arm 253 rotates counterclockwise in FIG. 1, is separated from the panel close end detection switch 252b, and maintains a state where it does not contact the panel open end detection switch 252c.

  Then, when the arm 330 rotates counterclockwise, the switch arm 251 biased by the connecting arm 253 further rotates counterclockwise and pushes the panel open end detection switch 252c. Then, the control device stops the motor 210 by the switch signal. As a result, as shown in FIGS. 13I and 18, the panel 100 stops in a state of being tilted in the horizontal direction (open state, open state), and the media insertion opening provided on the front surface of the main body 400 is exposed. Therefore, the user can insert or eject the recording medium.

[2. Panel closing operation]
When the panel 100 opened as described above is returned to the closed state, the user operates the operation start switch to start the motor 210. Then, an operation opposite to the above opening operation is started. That is, as shown in FIG. 3 and FIG. 6, the driving force of the motor 210 is transmitted from the worm 211 to the helical bar spur gear 212, the rotation detector 240, the spur tooth worm 213, and the helical gear 221. The drive gear 320 that rotates in an integrated state rotates in the clockwise direction.

  Then, the spur double gear 340 engaged with the drive gear 320 rotates clockwise, and the panel gear 310 engaged with the spur double gear 340 rotates counterclockwise, so that the panel 100 rotates counterclockwise. Starts. Further, a driving force is transmitted from the spur double gear 340 to the idle gear 350 and the idle gear 360, and the idle gear 360 rotates clockwise. At this time, since the small tooth width portion 360b of the idle gear 360 is engaged with the fixed gear 370b, the arm 330 is biased in the clockwise direction and starts a revolving operation. Therefore, since the panel 100 performs the revolving operation in the clockwise direction by the arm 330 while performing the rotation operation in the counterclockwise direction, as shown in FIGS. 13 (I) to (E) and FIG. The display device 101 of the panel 100 is stood up so that it faces the front.

  At this time, as shown in FIGS. 1 and 3, the connecting arm 253 rotates in the clockwise direction in synchronization with the clockwise rotation of the arm 330. Then, the switch arm 251 that has been engaged with the connecting arm 253 rotates in the clockwise direction in FIG. 1, is separated from the panel open end detection switch 252c, and maintains a state where it does not contact the panel close end detection switch 252b.

  When the arm 330 rotates clockwise, the switch arm 251 biased by the connecting arm 253 further rotates clockwise and pushes the panel close end detection switch 252b. Then, the control device stops the motor 210 by the switch signal. As a result, as shown in FIG. 13D and FIG. 16, the panel 100 stops in the vertical state (closed state, closed state), and the media insertion opening provided on the front surface of the main body 400 is covered. Is called.

[3. Panel tilt operation]
In the present embodiment, the panel 100 can be stopped while being tilted up to a predetermined angle (for example, 30 ° shown in FIG. 13G) during the opening operation of the panel 100 described above. That is, a rotation count value of the sensor 243 provided in the rotation detection unit 240 is set in advance in the control device in accordance with a predetermined angle of the panel 100. Then, as shown in FIGS. 1 and 3, the sensor 243 counts the change in the transmission state of the reflector 242 according to the rotation of the spur gear 241. As described above, when the count value detected by the sensor 243 reaches the rotation count value set in the control device, the motor 210 is stopped. Thereby, the panel 100 can be stopped at a predetermined angle.

[4. Panel reverse tilt operation]
Furthermore, although the above tilt operation is the operation from FIG. 13D to FIG. 13G, in the present embodiment, a reverse tilt operation (reverse tilt operation) can be performed. This is the operation shown in FIGS. 13D to 13A. The difference from the tilt operation is that the rotation operation of the panel 100 is stopped and the rotation operation of the arm 330 only is performed. The panel 100 is tilted in the direction opposite to the movement.

  That is, in the closed state of FIG. 13D, as shown in FIG. 15B, the small tooth width portion 360b of the idle gear 360 is disengaged from the fixed gear 370b, and the shaft of the idle gear 360 is attached to the mounting plate. The curved portion 370c of 370 is included. When the user operates the reverse tilt operation start switch in this state, the motor 210 starts in the same direction as the direction in which the panel 100 closes. Then, by the gear drive transmission similar to the above, the spur double gear 340 rotates clockwise, and the small tooth width portions 310a and 340a face each other with the panel gear 310 as shown in FIG. Therefore, they are not engaged with each other. Thereby, the rotation operation of the panel 100 is released, and the state substantially parallel to the arm 330 is maintained.

  Further, the tooth width large portion 360a of the idle gear 360 transmitted from the spur double gear 340 via the idle gear 350 rotates clockwise, as shown in FIG. Engagement with 370a is started, and engagement with the fixed gear 370b is released. Therefore, although the motor 210 rotates in the direction in which the panel 100 is closed, the arm 330 is biased counterclockwise in the same manner as the direction in which the panel 100 is opened, and the revolving operation is started. The state substantially parallel to the arm 330 is maintained (see FIGS. 13C and 13B).

  As the arm 330 rotates, the switch arm 251 of the posture state detection unit 250 of the panel 100 is rotated clockwise through the connection arm 253, and thus the reverse tilt end detection switch 252a is pushed. Then, the control device stops the motor 210 by the switch signal. Therefore, the panel 100 can be inclined so as to be slightly downward together with the arm 330 up to a predetermined angle (for example, 15 ° shown in FIG. 13A) (see FIG. 19). In such a reverse tilt operation, since the operation is performed with the panel close end detection switch 252b being pressed, the mode can be identified as compared with the normal tilt operation.

[5. Safety function]
Further, when the user touches the rotating panel 100, a force for stopping the rotation is applied to each gear. At this time, even if the clutch 222 is stopped, the rotation of the motor 210 is not stopped because the clutch 222 can rotate independently of the helical gear 221. That is, in such a case, since the transmission of the driving force from the motor 210 is disconnected, the motor 210 is not burdened, and the gear groove or the like is not deteriorated by applying an excessive force.

[D. effect]
According to the present embodiment as described above, the connection of the angle adjusting mechanism 300 that transmits the driving force of the driving mechanism 200 to the arm 330 and the panel 100 can be maintained and released so that only the panel 100 is normally opened. In addition, since the tilting operation can be performed in the opposite direction, the tilt adjustment can be performed so that the user can easily see the posture without selecting the mounting posture angle.

  Further, in the reverse tilt operation, the engagement is released between the panel gear 310 and the spur double gear 340, and the operation is satisfied by rotating the arm 330 counterclockwise. As described above, when the rotation operation of the panel 100 is released during the tilting operation in the reverse direction, the main body 400 does not interfere with the depth-direction mounting plate or the like attached to the panel 100, so that the depth of the panel driving device is reduced. The direction size can be kept thin.

  Further, as shown in the closed state in FIGS. 14A and 15B, the idle gear 360 engaged with the fixed gears 370a and 370b causes the arm 330 to move against the arm 330 regardless of the rotation direction. Although it can be rotated clockwise, the panel gear 310 and the spur double gear 340 are engaged and disengaged depending on the rotation direction. Accordingly, the case where the arm 330 is rotated while the panel 100 is rotating due to the difference in the rotation direction of the motor 210 from the closed state, and the case where the arm 330 is rotated after the rotation operation of the panel 100 is canceled are described. Various modes can be satisfied with a small number of parts. In particular, the release of the engagement and the change of direction are realized by the difference in the thickness of the gear, so there is no need to provide a special release mechanism, a conversion mechanism, etc. Operation is possible.

  Further, without requiring any special mechanism or the like on the main body 400 side, only the combination of the gear train provided on the arm 330 and the panel gear 310 and the fixed gears 370a and 370b allows the panel 100 to move in both forward and reverse directions. Operation can be realized. Therefore, the internal space of the main body 400 can be used effectively, and the entire electronic device can be reduced in size.

  In particular, in the drive mechanism 200, in order to effectively perform each function or to obtain a speed reduction function, all the gear portions that tend to have a relatively large diameter are arranged in a direction parallel to the display surface of the display device 101 (the axis is Further, the member including the relatively long shaft is disposed so that the shaft is in a direction parallel to the display surface of the display device 101. It is possible to incorporate a large number of functions by effectively using the thin space. Therefore, the panel 100 can be kept thin and the entire electronic device to which the panel 100 is attached can be reduced in size.

  Further, since all the mechanisms are unitized on the panel 100 side, the panel 100 can be attached to the main body 400 only by attaching the attachment plate 370 to the main body 400. For this reason, there is no need for troubles such as connection and connection with the mechanism inside the main body 400. Therefore, the manufacturing process can be greatly simplified, leading to improvement in production efficiency and quality, and cost reduction.

  Moreover, since the angle adjustment mechanism 300 is provided in a pair on the left and right, a stable and smooth operation can be realized. In addition, the angle of the panel 100 can be automatically controlled by the rotation detection unit 240 and the control device according to the device to be attached or according to the user's preference. Furthermore, even if the user touches the rotating panel 100, safety is ensured by the clutch unit 220, so that a failure can be prevented and a long life can be realized.

[E. Other Embodiments]
The present invention is not limited to the embodiment as described above. For example, the drive mechanism for driving the angle adjustment mechanism is not limited to that exemplified in the above embodiment, and any mechanism can be used as long as it can rotate the panel gear, the idle gear, and the like. There may be. Further, the setting of the gear ratio of the fixed gear, the idle gear, and the panel gear is not limited to a specific one. Therefore, by changing these gear ratios, various panel rotation modes can be realized, and the forward and reverse tilt angles of the panel are not limited to those exemplified in the above embodiment. When the panel is released and tilted in the same direction as the arm, the predetermined angle of the panel maintained with respect to the arm is also free.

  In the above embodiment, the panel is configured to rotate up and down about the horizontal axis, but may be configured to rotate left and right about the vertical axis. Further, the gear group of the angle adjustment mechanism may be provided not only on the left and right pair of panels but on either the left or right side, or on only one of the upper and lower sides instead of the upper and lower pairs. The arrangement position and arrangement direction of the drive mechanism and the angle adjustment mechanism, the number of gears constituting them, and the arrangement direction of the gears can be freely set as long as the effects of the present invention can be obtained. The number of gears of the large tooth width portion and the small tooth width portion for releasing the engagement of the gear is also free.

  Further, the members provided on the panel may be various input means and output means such as a display device, a switch, a sensor, a microphone, a speaker, and a camera, and are not limited to specific ones. Any kind of input / output means applicable at present or in the future can be applied. Furthermore, the present invention is suitable for an in-vehicle electronic device, but is not limited to this, and can be widely applied to electric / electronic and other devices including a panel. Therefore, the present invention can be applied to various apparatuses such as a stationary type and a portable type.

It is a front perspective view which shows one Embodiment of the panel drive device of this invention. It is a front perspective view which shows the panel and display apparatus of embodiment of FIG. It is a front view which shows the drive mechanism of embodiment of FIG. It is a front view (A) (C) and a side view (B) (D) which show a helical gear and clutch of an embodiment of Drawing 1. It is a front view which shows the clutch part of embodiment of FIG. It is a side view which shows the angle adjustment mechanism of embodiment of FIG. It is a left side perspective view of the panel of the embodiment of FIG. It is a right side perspective view of the panel of the embodiment of FIG. It is the front view (A) and side view (B) which show the panel gear in embodiment of FIG. It is the side view (A) and front view (B) which show the spur double gear in embodiment of FIG. It is the front view (A) and side view (B) which show the idle gear in embodiment of FIG. It is the front view (A) and side view (B) which show the attachment plate in embodiment of FIG. It is explanatory drawing which shows rotation of the panel in embodiment of FIG. It is explanatory drawing which shows the engagement / disengagement state of the panel gear and the flat-tooth double gear at the time of tilt operation in the embodiment of FIG. It is explanatory drawing which shows the engagement / disengagement state of the idle gear and fixed gear at the time of tilt operation in embodiment of FIG. It is a simplified perspective view which shows the upright state of the panel in embodiment of FIG. It is a simplified perspective view which shows the tilt state in embodiment of FIG. It is a simplified perspective view which shows the horizontal state of the panel in embodiment of FIG. It is a simplified perspective view which shows the reverse tilt state of the panel in embodiment of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 ... Panel 101 ... Display apparatus 102 ... Shaft 200 ... Drive mechanism 210 ... Motor 211 ... Worm 212 ... Hasuba-spur gear 213 ... Spur tooth-worm 220 ... Clutch part 221 ... Hasuba gears 221a, 222a ... Cam part 222 ... Clutch 222b ... projection 223 ... disc spring 224 ... bush 240 ... rotation detector 241 ... spur gear 242 ... reflector 243 ... sensor 250 ... posture state detector 251 ... switch arm 252 ... switch 252a ... reverse tilt end detection switch 252b ... panel close End detection switch 252c ... Panel open end detection switch 253 ... Connection arm 254 ... Spring 255 ... Connection arm shaft 300 ... Angle adjustment mechanism 310 ... Panel gears 310a, 340a, 360b, 370d ... Tooth width small portion 320 ... Drive gear 330 ... Ar 331 ... ... torsion coil spring 340 spur double gear 350, 360 ... idle gear 360a ... tooth width most 370 ... mounting plate 370a, 370b ... fixed gear 370c ... curved portion 400 ... body 410 ... body plate

Claims (5)

In a panel drive device comprising an attachment portion that can be attached to a device, a panel that is displaceable with respect to the attachment portion, and a drive portion that displaces the panel,
One end of an arm part is rotatably connected to the attachment part,
The other end of the arm portion is rotatably connected to the panel,
An angle adjusting mechanism for displacing the arm part and the panel by transmitting the driving force of the driving part to the arm part and the panel is provided.
The angle adjusting mechanism is configured to adjust the angle of the panel with respect to the arm portion.
A panel gear fixed to the panel;
A gear that is provided on the arm portion and displaces the panel by transmitting a driving force of the driving portion to the panel gear;
Have
The gear for displacing the panel is
A normal operation state in which the panel is displaced together with the arm part while being rotated in a direction different from the arm part by being engaged with the panel gear;
A reverse operation state in which the panel is displaced together with the arm part while maintaining a predetermined angle with respect to the arm part by being in a state not engaged with the panel gear;
A panel drive device characterized by being provided so as to be switchable. The angle adjustment mechanism is configured to adjust the angle of the arm part,
A fixed gear fixed to the mounting portion;
An idle gear that is provided in the arm part and rotates by the driving force of the driving part in a state of being engaged with the fixed gear;
Have
The fixed gear includes a conversion unit that converts the rotation of the idle gear in one direction and the rotation in the opposite direction to the rotation of the arm unit in one direction. The panel driving device according to claim 1. The attachment portion has a release portion for releasing the engagement between the fixed gear and the idle gear,
The conversion unit includes a part that converts rotation of the idle gear in one direction into rotation of the arm unit across the release unit, and rotation of the idle gear in the reverse direction of the arm unit. The panel drive device according to claim 2, further comprising: a portion that converts the rotation into a rotation. In a panel drive device comprising an attachment portion that can be attached to a device, a panel that is displaceable with respect to the attachment portion, and a drive portion that displaces the panel,
One end of an arm part is rotatably connected to the attachment part,
The other end of the arm portion is rotatably connected to the panel,
An angle adjusting mechanism for displacing the arm part and the panel by transmitting the driving force of the driving part to the arm part and the panel is provided.
The angle adjustment mechanism is configured to adjust the angle of the arm part,
A fixed gear fixed to the mounting portion;
An idle gear that is provided in the arm part and rotates by the driving force of the driving part in a state of being engaged with the fixed gear;
Have
The fixed gear includes a conversion unit that converts the rotation of the idle gear in one direction and the rotation in the opposite direction to the rotation of the arm unit in one direction. Panel drive device.   The panel driving apparatus according to claim 1, wherein the driving unit is built in the panel.

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