JP4664697B2 - Display unit for vehicle - Google Patents

Description

  The present invention relates to a vehicular display unit having a display that can be tilted in a vehicle interior.

  A display is provided on the instrument panel of the vehicle, and the lower end of the display is tilted while sliding toward the front of the instrument panel, so that a media insertion slot such as a CD or MD provided on the back side of the display is inserted. There is known an apparatus that exposes the medium and inserts / removes the medium (for example, see Patent Document 1). According to this apparatus, when the tilting of the display is instructed by the operation of the occupant, the display driving motor is driven to tilt the display.

JP 2000-338889 A

  In such a tilt-type display, a gap is formed on the back side of the display during tilting, so that an occupant may accidentally insert a finger into the gap and pinch the finger with the display. However, the apparatus described in Patent Document 1 has not been paid for this point.

The vehicle display unit according to the present invention includes a display disposed on the front surface of the main body, and a support that supports the display so that the display is tiltable with respect to the main body while moving one end of the display in the front-rear direction with respect to the main body. And a display drive actuator that tilts the display via the support member, and the support member is a predetermined value that causes the display to be separated from the main body with respect to the support portion of the display when the display is tilted by driving the display drive actuator. have a separation mechanism to separate the display when more force is applied from the body, separation mechanism may be provided with a keeper having an engaging portion, a housing ball portion is provided to removably support the engagement portion It is characterized by.
Separation mechanism of the support member have a limiting portion that limits the amount of separation of the display relative to the body below a predetermined amount, limiting unit, when the engaging portion is disengaged from the ball portion, the housing so as to contact the keeper It is desirable to provide the stopper portion provided .
When command means for commanding tilting of the display, position detecting means for detecting that the display has tilted to a predetermined position by a command from the command means, and detecting that the display has tilted to the predetermined position by the position detecting means, First control means for stopping the display drive actuator may be further included.
Further, it may further comprise an abnormality detecting means for detecting an abnormality in the tilting operation of the display, and a second control means for stopping the display driving actuator when an abnormality in the tilting operation is detected by the abnormality detecting means.

According to the present invention, the display is supported so as to be tiltable from the main body via the support member, and the display is separated from the main body when a force greater than a predetermined value is applied to the support portion of the display. Since a separation mechanism is provided, the separation mechanism includes a keeper having an engagement portion and a housing provided with a ball portion that supports the engagement portion so that the engagement portion can be inserted and removed. Even in such a case, the pinched finger can be safely pulled out.

Hereinafter, an embodiment of a display unit for a vehicle according to the present invention will be described with reference to FIGS.
FIG. 1 is an overall perspective view of a display unit 100 according to the present embodiment. The display unit 100 is called a 2DIN size and is housed in an instrument panel of a vehicle. In the following, front and rear, left and right directions are defined as shown, and the configuration of each part will be described according to this definition.

  The display unit 100 includes a main body 1 and a display 2 disposed on the front surface of the main body 1 so as to be tiltable. The periphery of the main body 1 is covered with a case 11. The display 2 includes a display screen 21 and various operation members 22 (switches, joysticks, and the like) disposed around the display screen 21. The display 2 controls display on the display screen 21 by operating the operation member 22, and will be described later. The display 2 is tilted. The display screen 21 displays information from the navigation system, music information such as CD and MD, and various vehicle information.

  2 is a cross-sectional view taken along the line II-II of FIG. 1, and FIG. 3 is a view showing a state in which the display 2 is tilted. In FIG. 2, the display 2 is stored on the front surface of the main body 1 (stored state), and in FIG. 3, the display 2 is discharged forward with respect to the main body 1 (discharged state).

  As shown in FIGS. 2 and 3, pins 23 protrude from the left and right ends (only the right side is shown) and the upper end of the display 2 via ball catches (FIG. 5), which will be described later. A groove 12 provided on the inner surface is fitted to be slidable in the vertical direction. Further, slide fittings 25 are connected to the left and right ends and the lower end of the display 2 via pins 24, respectively. The slide fitting 25 is slidably inserted into the rail 13 provided on the left and right inner surfaces of the case 11, and the output shaft of the motor 31 is meshed with rack teeth formed on the slide fitting 25 via a gear mechanism (not shown). . The motor 31 is driven by an operation of the operation member 22, for example, a pressing operation of the pressing switch 221 in FIG. 1, and the slide fitting 25 is slid in the front-rear direction by driving the motor 31. The drive of the motor 31 is controlled by the control unit 32 as will be described later.

  As shown in FIG. 2, a main body 1 on the back side of the display 2 includes a CD / DVD reading device 35 for reading information recorded on a CD and a DVD, and an MD recording / reproducing device 36 for recording and reproducing an MD. And a memory card reader / writer 37 for exchanging various types of information with the memory card. Each of these devices 35 to 37 has insertion ports (slots) 351, 361, and 371 for inserting / removing a medium as an information storage medium into / from each of the devices 35 to 37. The mouths 351, 361, 371 are covered with the display 2.

  When the slide fitting 25 is slid forward by driving the motor 31 from the state of FIG. 2, the lower pin 24 is moved forward and the upper pin 23 is moved downward along the groove 12, as shown in FIG. The display 2 tilts. As a result, the display screen 21 is discharged forward with the display screen 21 facing upward, the insertion ports 351, 361, and 371 are exposed, and the media can be inserted and removed. The position of the pin 23 when the display 2 is in the retracted state and the position of the pin 23 when the display 2 is in the ejected state are detected by detectors 41 and 42 such as limit switches, respectively. Thereby, the storage end and discharge end of the display 2 can be detected. The slide amount of the slide fitting 25 (for example, the amount of rack teeth passing) is detected by a detector 43 such as a photo interrupter.

  When the display 2 is tilted in this way, a gap 500 (shaded portion in FIG. 3) is generated between the display 2 and the main body 1 on the back side. For this reason, there is a possibility that the operator mistakenly inserts a finger into the gap 500 and the finger is pinched between the display 2 and the main body 1 or the slide fitting 25 as shown in FIG.

  In this case, when the finger is pinched, the driving resistance of the motor 31 increases and becomes larger than the output torque of the motor 31, so the slide fitting 25 stops sliding. However, when the finger is pinched, the finger is safely pulled out. Is difficult. Therefore, in this embodiment, in order to ensure that the finger can be safely pulled out even when the finger is pinched, in other words, to prevent the finger from being pinched with a load exceeding a predetermined value. The configuration is as follows.

  FIGS. 5A and 5B are side views showing the configuration of the support portion at the upper end of the display 2. The display 2 is provided with a ball catch 50 including a housing 52 from which a keeper 51 and a pin 23 project. That is, a keeper 51 is fixed to the rear end of the display 2, and the keeper 51 is accommodated in a housing 52 from which a pin 23 is projected. The housing 52 is provided with a ball portion 52a for removably supporting the engaging portion 51a at the tip of the keeper 51. When a pulling force of a predetermined value F0 or more acts on the engaging portion 51a, the engaging portion 51a is pulled out from the ball portion 52a. On the contrary, when a pushing force acts, the engaging portion 51a can be pushed into the ball portion 52a. The keeper 51 is provided with a stopper portion 51b, and the housing 52 is provided with a stopper receiving portion 52b corresponding to the stopper portion 51b.

  5A shows a so-called locked state in which the engaging portion 51a of the keeper 51 is supported by the ball portion 52a of the housing 52, and FIG. 5B shows the engaging portion 51a removed from the ball portion 52a. A so-called unlocked state is shown. In the locked state, the position of the keeper 51 is regulated by the ball portion 52a, and in the unlocked state, the stopper portion 51b abuts against the stopper receiving portion 52b to regulate the position of the keeper 51. For this reason, the size of the gap 500 behind the display 2 is larger in the unlocked state than in the locked state.

  In the locked state of FIG. 5A, when a force (arrow F) of a predetermined value F0 or more that separates the display 2 from the main body 1 acts on the support portion (ball catch 50) of the display 2, the keeper 51 is moved to the housing 52. Is pulled out from the ball portion 52a, and the unlocked state shown in FIG. Here, the predetermined value F0 is set to a force acting on the ball catch 50 when a finger is sandwiched between the displays 2. That is, when a finger is sandwiched between the displays 2, the force F shown in FIG. 5A acts on the ball catch 50, and the engaging portion 51a of the keeper 51 is disengaged from the ball portion 52a. The force F acting on the ball catch 50 when the display 2 is normally tilted is smaller than a predetermined value F0, and the ball catch 50 is locked in a normal state.

  Next, a control configuration of the display unit 100 according to the present embodiment will be described. FIG. 6 is a block diagram showing a control configuration. The detectors 41 to 43 and the operation member 22 are connected to the control unit 32. The control unit 32 executes predetermined processing based on the signals from these, and outputs a control signal to the motor driver 33. Thereby, the drive of the motor 31 is controlled and the display 2 is tilted.

  FIG. 7 is a flowchart illustrating an example of processing in the control unit 32. This process starts when the pressing switch 221 is operated. That is, the display tilt program is started.

  First, in step S1, it is determined whether or not storage of the display 2 is instructed by operating the operation member 22 (for example, the push switch 221 in FIG. 1) when the display 2 is ejected (when the limit switch 42 is turned on). If step S1 is affirmed, the process proceeds to step S7, and if not, the process proceeds to step S2. In step S2, it is determined whether or not the display 2 is instructed to be discharged by operating the operation member 22 (press switch 221) when the display 2 is stored (when the limit switch 41 is turned on). Note that the storage command in step S1 and the discharge command in step S2 are continuously output until the motor 31 is stopped in step S6 even after the operation member 22 is stopped once the operation member 22 is operated.

  If step S2 is affirmed, the process proceeds to step S3. If negative, the process proceeds to step S6. In step S6, a control signal is output to the motor driver 33, and driving of the motor 31, that is, tilting of the display 2 is stopped. In step S3, it is determined whether or not the limit switch 42 is turned on, that is, whether or not the display 2 has been discharged. If step S3 is affirmed, the process proceeds to step S6, and if not, the process proceeds to step S4. In step S4, a control signal is output to the motor driver 33, and the motor 31 is rotated (for example, forward rotation). As a result, the entire display gradually lies while the lower end of the display 2 slides forward.

  On the other hand, in step S7, it is determined whether or not the limit switch 41 is on, that is, whether or not the storage of the display 2 is completed. If step S7 is affirmed, the process proceeds to step S6, and if not, the process proceeds to step S8. In step S8, a control signal is output to the motor driver 33, and the motor 31 is rotated (for example, reversely rotated). As a result, the entire display gradually rises while the lower end of the display 2 slides backward.

  In step S5, it is determined whether or not the detector 43 has detected an abnormality when the motor is driven in steps S4 and S8. That is, since the movement of the slide fitting 25 is hindered when a finger is caught in the display 2, it is detected from the signal from the detector 43 that the slide fitting 25 has not moved for a predetermined time, and an abnormal tilting operation of the display 2 is detected. To detect. Note that a detector may be provided in the ball catch 50 to detect an abnormality by detecting that the ball catch 50 has been unlocked. If step S5 is negative, the process returns to step S1 and the same processing is repeated. If step S5 is affirmed, the process proceeds to step S6, and the motor 31 is stopped. As a result, the ball catch 50 is in the unlocked state when a finger is pinched on the display 2, and the slide fitting 25 can be prevented from moving in the unlocked state.

The main operations of the display unit 100 according to the present embodiment are summarized as follows.
(1) Normal time When the pressing switch 221 is pressed when the display 2 is stored, a discharge command for the display 2 is output, the motor 31 rotates forward, and the display 2 tilts while sliding forward (step S4). At this time, since the force F acting on the ball catch 50 is smaller than the predetermined value F0, the locked state of the ball catch 50 is maintained. When the discharge of the display 2 is completed, the limit switch 42 is turned on and the motor 31 is stopped (step S3 → step S6). As a result, a force of a predetermined value F0 or more does not act on the ball catch 50 after the display 2 is completely discharged, and the ball catch 50 can be prevented from being unlocked during normal operation.

  When the pressing switch 221 is pressed when the display 2 is ejected, a storage command for the display 2 is output, the motor 31 is reversed, and the display 2 tilts while sliding backward (step S8). At this time, since the force F acting on the ball catch 50 is smaller than the predetermined value F0, the locked state of the ball catch 50 is maintained. When the storage of the display 2 is completed, the limit switch 41 is turned on and the motor 31 is stopped (step S7 → step S6). As a result, after the storage of the display 2 is completed, a force equal to or greater than the predetermined value F0 does not act on the ball catch 50, and the ball catch 50 can be prevented from being unlocked during normal operation.

(2) Abnormality When the display 2 is tilted, if a finger is accidentally pinched on the back side of the display 2, the force F acting on the ball catch 50 becomes a predetermined value F0 or more, and the engaging portion 51a of the keeper 51 becomes the ball portion. It will come off from 52a and will be in a lock release state. As a result, the display 2 rotates forward with the pin 24 at the lower end as a fulcrum, so that the gap 500 on the back side of the display 2 becomes large, and the pinched fingers can be safely removed. Further, since the rotation amount of the display 2 when unlocking is limited by the stopper 51b, the display 2 can be prevented from being separated from the main body 1 by a predetermined amount.

  At this time, since the detector 43 detects an abnormal operation, the motor 31 is stopped (step S5 → step S6), and the tilting operation of the display 2 is stopped. As a result, the display 2 is not driven in the unlocked state, and the occupant can safely and carefully move the finger sandwiched between the back side of the display 2 to the outside of the gap 500.

  When the motor 31 is driven again, the engaging portion 51a of the keeper 51 is pushed into the ball portion 52a of the housing 52 by the occupant's own force to set the locked state. In addition, when it is difficult to visually check whether or not the engaging portion 51a is engaged with the ball portion 52a, for example, when the tip of the keeper 51 comes close to the inside of the housing 52 (back of the ball portion 52a). It is also possible to provide a proximity switch that displays the ON state of the proximity switch on the display screen 21. When the ball catch 50 is locked, a reset command is output by operating the operation member 22 (for example, a reset switch). As a result, the motor 31 rotates and the display 2 starts to tilt again.

According to the above embodiment, the following effects can be obtained.
(1) The display 2 is supported from the main body 1 via the ball catch 50, and the ball catch 50 is changed from the locked state to the unlocked state by the force F acting when a finger is sandwiched between the back side of the display 2. did. As a result, the display 2 is separated from the main body 1 and the gap 500 on the back side of the display 2 is increased, so that the finger can be safely pulled out.
(2) When a finger is sandwiched between the displays 2, it is possible to prevent a load greater than a predetermined value from acting on the finger, and the safety is high.
(3) Since the keeper 51 is provided with the stopper 51b, the keeper 51 is not detached from the housing 52 in the unlocked state, the position of the display 2 with respect to the main body 1 can be restricted, and the display 2 is undesirably moved forward. It can prevent falling.
(4) Since the discharge completion and storage completion of the display 2 are detected by the detectors 41 and 42 and the motor 31 is stopped, no extra force is applied to the ball catch 50 in the normal state. Smooth discharge and storage are possible.
(5) Since the detector 43 detects that a finger has been caught in the display 2 and stops the motor 31, the occupant can pull out the finger safely and carefully.

  In the above embodiment, the display 2 ejection and storage commands are output by operating the operation member 22 (press switch 221). However, a tilt command for stopping the display 2 at a desired angle may be output. it can. In this case, for example, when the pressing duration of the pressing switch 221 is short pressing that is less than a certain time, the display 2 is tilted by a predetermined angle according to the number of pressing times, and the pressing duration of the pressing switch 221 is a certain time. What is necessary is just to discharge | emit and store the display 2 at the time of the long press which is the above.

  In the above embodiment, the lower end portion of the display 2 is supported to be slidable in the front-rear direction via the slide fitting 25, and the upper end portion of the display 2 is supported to be slidable in the vertical direction via the ball catch 50. Although the display 2 is tilted in the front-rear direction with respect to the main body 1, the display 2 is supported so as to be tiltable with respect to the main body while the one end portion of the display 2 is moved substantially in parallel in the front-rear direction with respect to the main body 1. If it is, the structure of a support member is not restricted to this. That is, it is possible to move in the front-rear direction with respect to the main body 1 except for the lower end portion, and therefore the display 2 may be tilted in directions other than the front-rear direction. Instead of sliding the end portion of the display 2 in the front-rear direction and tilting the display 2, the display 2 may be tilted by translating in the front-rear direction via a link or the like.

  In the above embodiment, the display 2 is separated from the main body 1 by using the ball catch 50. However, when the display 2 is tilted, the display is caused by a finger being caught in the gap 500 between the main body 1 and the display 2. If the display 2 is separated from the main body 1 when a force F equal to or greater than a predetermined value F0 that causes the display 2 to separate from the main body 1 is applied to the support portion 2, another separation mechanism (for example, a magnet catch) is used. Also good.

  The display 2 may be tilted by a display driving actuator other than the motor 31. Although the stopper 51b limits the position of the keeper 51 relative to the housing 52, that is, the distance that the display 2 is separated from the main body 1, the configuration of the limiting portion is not limited thereto. Although the tilting of the display 2 is commanded by operating the operating member 22 provided around the display screen 21, the commanding means is not limited to this. Although it has been detected that the display 2 is tilted to a predetermined position (discharge position, storage position) by the limit switches 41 and 42, other position detection means may be used. Although the motor 31 is stopped when the limit switches 41 and 42 are turned on, the processing in the control unit 32 as the first control means is not limited to that shown in FIG. When it is detected from the signal from the detector 43 that the slide fitting 25 has not moved for a predetermined time, an abnormality in the tilting operation of the display 2 is detected. However, the abnormality detection means is not limited to this. Further, the processing in the control unit 32 as the second control means for stopping the motor 31 when an abnormality is detected is not limited to the above.

  In the above-described embodiment, the display unit 100 housed in the instrument panel has been described. However, the display unit 100 can be similarly applied to all the display units in the vehicle compartment where the operator may pinch a finger due to the tilt of the display 2. . That is, the present invention is not limited to the vehicle display unit of the embodiment as long as the features and functions of the present invention can be realized. In addition, the above description is an example to the last, and when interpreting invention, it is not limited or restrained at all by the correspondence of the description matter of the said embodiment, and the description matter of a claim.

1 is an overall perspective view of a display unit according to an embodiment of the present invention. The II-II sectional view taken on the line of FIG. 1 (storage state). The figure which shows the discharge | emission state of a display. The figure which shows the problem of a tilting display unit. It is a figure which shows the upper end support part of the display which concerns on this Embodiment, (a) shows the locked state of a ball catch, (b) shows the unlocked state of a ball catch. The block diagram which shows the control structure of the display unit which concerns on this Embodiment. The flowchart which shows an example of the process in the control part of FIG.

Explanation of symbols

1 Body 2 Display 23, 24 Pin 25 Slide fitting 31 Motor 41, 42 Limit switch 50 Ball catch 51 Keeper 51b Stopper 52 Housing 52b Stopper receiving part

Claims (4)

A display disposed on the front of the main body,
A support member that supports the display so as to be tiltable with respect to the main body while substantially translating one end of the display in the front-rear direction with respect to the main body;
A display drive actuator that tilts the display via the support member;
When the display member is tilted by driving the display driving actuator, the support member separates the display from the main body when a force greater than a predetermined value acts on the support portion of the display to separate the display from the main body. have a separation mechanism to be,
The said separation mechanism is provided with the housing provided with the keeper which has an engaging part, and the ball | bowl part which supports the said engaging part so that insertion / removal is possible, The vehicle display unit characterized by the above-mentioned. The vehicle display unit according to claim 1,
Wherein the separation mechanism of the support member have a limiting portion that limits the amount of spacing of said display relative to the body below a predetermined amount, the limiting portion, when the engaging portion is disengaged from said ball portion, said A display unit for a vehicle, wherein the display unit is a stopper provided in the housing so as to contact the keeper . The vehicle display unit according to claim 1 or 2,
Command means for commanding tilting of the display;
Position detection means for detecting that the display is tilted to a predetermined position by a command from the command means;
The vehicle display unit further comprising a first control unit that stops the display driving actuator when the position detecting unit detects that the display is tilted to a predetermined position. The vehicle display unit according to any one of claims 1 to 3,
An anomaly detecting means for detecting an anomaly of the tilting operation of the display;
The vehicle display unit, further comprising: a second control unit that stops the display driving actuator when the abnormality of the tilting operation is detected by the abnormality detection unit.

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