JP3215140B2 - In-car TV - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an in-vehicle television incorporated in a dashboard of a vehicle such as a passenger car.

[0002]

2. Description of the Related Art There are tuners, tape decks, CD players, and the like as car stereos mounted on vehicles.
These are mounted on a console box or the like according to options or vehicle grades.

In recent years, liquid crystal televisions, which have advantages such as small size and thinness, have been enhanced, and their popularity has been increasing in place of cathode ray tube televisions because they are more affordable.

However, in many passenger cars, there is no space for installing a liquid crystal television, not limited to a CRT television. For example, when an LCD television is installed in a vehicle cabin, a dedicated mounting on a dashboard is required. It is mounted using metal fittings or mounted near the shift knob using a dedicated mounting arm.

[0005] However, in such a mounting method, if the liquid crystal television fixed and mounted by a special bracket or a special arm is simply installed in a vehicle interior, it is often the case that the liquid crystal television is exposed to a hot summer sun. In such a case, there is a great risk that the liquid crystal display unit may be deformed by heat and may significantly impair the display function of the liquid crystal television.

[0006] In order to solve such a problem,
For example, Japanese Patent Laid-Open Publication No. 2-31577 discloses an in-vehicle television in which a liquid crystal television is incorporated in a dashboard as shown in FIGS. That is, the box-shaped casing 2 that houses the television body 1 is installed inside the dashboard D. A feed mechanism 3 that allows the television body 1 to move forward and backward is provided inside the casing 2. A support mechanism (not shown) is provided at the lower end of the television body 1, and the feed mechanism 3 is connected via the support mechanism.

In use, after manually pulling out the television main body 1 from the inside of the casing 2 (see FIG. 2), the television body 1 is raised up to an appropriate angle with the support mechanism as a fulcrum (see FIG. 3). On the other hand, in the case of transmission control, when a drawer start button (not shown) is operated, the feed mechanism 3
The television body 1 is driven from within the casing 2 by the
Is sent out (see FIG. 2), and then the television body 1 is rotated to a predetermined angle via the support mechanism (see FIG. 3).

When not used, the television body 1 is manually pushed down into the casing 2 after the television body 1 is horizontally lowered via the support mechanism. On the other hand, according to the transmission control, when the pull-back start button (not shown) is operated, the television main body 1 is tilted horizontally via the support mechanism, and then the television main body 1 is returned into the casing 2 by the feed mechanism 3. It is.

Thus, when the television body 1 is not used, the television main body 1 is housed in the casing 2 inside the dashboard D, so that not only a storage space is secured but also it is not exposed to the hot summer sun. This eliminates the problem that the liquid crystal display is deformed by heat.

[0010]

By the way, in the above-mentioned conventional mounting television, when the television main body 1 is returned into the casing 2, the television main body is manually turned down via the support mechanism, and then the casing is turned down. Push the TV main unit 1 into 2. On the other hand, according to the transmission control, by operating a pull-back start button (not shown), the television body 1 is tilted horizontally, and the casing 2 is moved by the feed mechanism 3.
Will be returned within.

Therefore, both the manual operation and the transmission control operation require a conscious operation of returning the television body 1 to the inside of the casing 2, so that the operation is troublesome. In addition, if the user forgets to return the television body 1 to the inside of the casing 2, the television body 1 is exposed to the hot sun, which causes a problem that the liquid crystal display unit is deformed by heat.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and automatically synchronizes the on / off operation of an accessory key of a vehicle so that the television body can be automatically taken in and out of a casing. It is an object of the present invention to provide an in-vehicle television capable of improving operability in taking in and out of a television and preventing thermal deformation of a liquid crystal display.

[0013]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a motor vehicle which is held in a casing buried in a console portion of an automobile so as to be able to move forward and backward, is pushed out of the casing, and has a predetermined angle. An on-vehicle television having a television body which is turned up to and including: an on / off detecting means for detecting an on / off state of an accessory key of the vehicle; When turned off, a television main body access means for housing the television main body in the casing is provided.

[0014]

In the on-vehicle television according to the present invention, the television body is automatically taken in and out of the casing in synchronization with the on / off state of the accessory key of the automobile. In such a case, the television body is pushed out of the casing and the television body is rotated to a predetermined angle, and when the accessory key is turned off, the television body is rotated to the predetermined angle and the television body is stored in the casing. It was done. Therefore, forgetting to return the television body to the casing is reliably prevented, and the problem that the liquid crystal display unit is deformed by heat is solved.

[0015]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIGS. 4 to 10 show an embodiment of an in-vehicle television according to the present invention, in which a television main body 20 is rotated via a support mechanism 30 with respect to a casing 10 installed on a dashboard (not shown) of the vehicle. It is movably supported. The television body 20 can be moved forward and backward with respect to the casing 10 by a feed mechanism 40. Further, the television body 20 is rotated by a rotation mechanism 50 to a predetermined easy-to-view angle.

The operation of the feed mechanism 40 and the rotation mechanism 50 is driven in synchronization with the turning on / off of an accessory key of the vehicle as described later. Furthermore, after the television main body 20 is rotated to a predetermined angle, the support mechanism 30 is drawn into the casing 10 until the rear side of the television main body 20 contacts the dashboard D.

The casing 10 is provided with an opening 13 serving as an entrance and exit of the television body 20. The casing 10 has a size determined by the DIN standard.

A function button (not shown) for performing channel selection, volume adjustment, brightness adjustment, and the like is provided on a side surface of the television body 20. The television main body 20 is provided with a liquid crystal display unit 21 and a casing 10.
In the state where the liquid crystal display unit 21 is housed inside, the liquid crystal display unit 21 is directed downward. The edge 23a of the television main body 20 is formed in an R shape, so that the rotation at a position immediately before the television main body 20 is completely pushed out of the casing 10 is smoothly performed as described later. I have.

The support mechanism 30 has a sub-casing 31. Rollers 33 are rotatably mounted on both sides of the sub casing 31 via support members 32. A guide member 14 is provided on the inner surface of the casing 10.
Extends horizontally. Each roller 33 is placed on the guide member 14. Thereby, the sub-casing 31 is slidable inside the casing 10.
A support arm 34 is disposed opposite to the distal end of the sub casing 31. The television body 20 is rotatably mounted between the support arms 34.

On one side of the upper end surface of the sub-casing 31,
An optical sensor 70 is attached. At a position corresponding to the optical sensor 70 on the inner surface of the casing 10, a sheet-shaped position detecting member 71 is attached. Sub casing 31
The optical sensor 70 takes in the modulated reflected light from the position detecting member 71 with the movement of the sub-casing 31 to detect the amount of movement of the sub-casing 31.

The feed mechanism 40 is provided with a feed drive motor 41 for sliding the sub-casing 31 inside the casing 10. A worm gear 42 is attached to the drive shaft of the feed drive motor 41. A pinion gear 43 is rotatably attached to the upper end of the sub casing 31. Transmission gears 42 a to 42 f are interposed between the worm gear 42 and the pinion gear 43. The driving force of the feed drive motor 41 is transmitted to the pinion gear 43 via transmission gears 42a to 42f.

On the casing 10 side, rack gears 11,
12 are provided flat. The pinion gear 43 meshes with the rack gear 11. The pinion gear 44 meshes with the rack gear 12. The pinion gears 43 and 44 are connected via a shaft 45. Feed drive motor 4
When the first driving force is transmitted to the pinion gear 43, the sub casing 31 slides. At this time, the driving force transmitted to the pinion gear 43 is transmitted to the pinion gear 44 via the shaft 45, so that the sub casing 31 slides properly.

A sense switch 45 for sensing a rotation start position after the television main body 20 is sent out to a predetermined position is attached to a tip end side of the casing 10. A contact member 46 is attached to the side surface of the sub-casing 31 to contact the sense switch 45 when the sub-casing 31 is sent out by a predetermined amount and to turn it on.

The sensor for sensing the sending position of the television body 20 to a predetermined position is not limited to a mechanical sensor as in this example, but may be another sensor such as an optical sensor. .

The turning mechanism 50 is provided with a turning drive motor 51 for applying a turning force for turning the television body 20 pushed out of the casing 10 to an easy-to-view angle. A worm gear 52 is attached to a drive shaft of the rotation drive motor 51. A large gear 53 that meshes with the rotating fan-shaped gears 22 and 23 provided on the television main body 20 is rotatably disposed on the distal end side of the sub casing 31. The large gear 53 is provided for each of the fan gears 22 and 2.
3, each large gear 53 has a shaft 53
a.

Transmission gears 54a to 54f are interposed between the large gear 53 and the worm gear 52. The driving force of the rotation drive motor 51 is transmitted to the large gear 53 via transmission gears 54a to 54f.

A rotation angle discriminating gear 55 is arranged at a position where it meshes with the transmission gear 54f. As shown in FIG. 7B, a discriminating plate 56 whose outer peripheral surface is painted black and white is integrally attached to the rotation angle discriminating gear 55.

Discrimination plate 56 on the upper end surface of sub casing 31
An optical sensor 58 is attached via a substrate 57 at a position corresponding to. The rotation amount of the television main body 20 is detected by the optical sensor 58 taking in the modulated reflected light from the discrimination plate 56 with the rotation of the television main body 20.

The basic operation of the in-vehicle television having such a configuration is as follows. First, when a start switch (not shown) that prompts the television main body 20 to be pulled out of the casing 10 is operated, the feed drive motor 41 of the feed mechanism 40 is driven. The driving force of the feed drive motor 41 is
The power is transmitted to a pinion gear 43 via a worm gear 42 and transmission gears 42a to 42f attached to the drive shaft.

The driving force transmitted to the pinion gear 43 is transmitted to the pinion gear 44 via the shaft 45. When the pinion gears 43 and 44 rotate, the sub-casing 31 is sent out toward the opening 13 by the meshing force with the rack gears 11 and 12.

At this time, the optical sensor 70 attached to the sub-casing 31 detects the modulated reflected light from the sheet-like position detecting member 71 attached to the inner surface of the casing 10, and thereby the sub-casing 31 Is detected.

The sub-casing 31 is provided with a feed drive motor 4
When it is sent out to the opening 13 side shown in FIG. 9 by one driving force, for example, the contact member 46 attached to the sub-casing 31 contacts the sense switch 45 attached to the casing 10 side. This position is a position immediately before the television main body 20 is completely pushed out of the casing 10, and is a position that does not hinder the rotation of the television main body 20.

Thus, the rotation start position of the television body 20 is detected, and the rotation drive motor 5 of the rotation mechanism 50 is detected.
1 is driven. The driving force of the rotation drive motor 51 is transmitted to the large gear 53 via the worm gear 52 and transmission gears 54a to 54f attached to the drive shaft.
The driving force transmitted to one large gear 53 is also transmitted to the other large gear 53 via the shaft 53a.

When the large gears 53 rotate and the fan gears 22 and 23 meshing with the large gears 53 rotate, the television body 20 is rotated.
Rotates.

At this time, since the edge 23a of the television main body 20 is formed in an R shape, the rotation of the television main body 20 is smoothly performed without the edge 23a coming into contact with the casing 10. At this time, the transmission gear 5
The rotation angle discrimination gear 55 meshing with 4f rotates in synchronization with the rotation of the television body 20, and the discrimination plate 56 also rotates. The rotation amount of the television main body 20 is detected by the optical sensor 58 attached to the sub-casing 31 taking in the reflected light modulated by the rotation of the discrimination plate 56.

When the television main body 20 is rotated to, for example, a preset angle, this is detected by the detection result of the optical sensor 58, and the driving of the rotation drive motor 51 is stopped.

Immediately before or immediately after the television body 20 stops rotating, the optical sensor 70 attached to the upper end surface of the sub-casing 31 is modulated by a sheet-shaped position detecting member 71 attached to the casing 10 side. The received reflected light is taken in, and it is detected that the sub casing 31 has been sent out by a predetermined amount. Thus, the driving of the feed drive motor 41 is stopped.

Further, when a rotation result to a preset angle by the optical sensor 58 and a predetermined amount of the sub casing 31 to be sent out by the optical sensor 70 are detected, the feed driving motor 41 is turned in the opposite direction to the feed direction. , Whereby the support mechanism 30 is pulled back into the casing 10. The amount of return of the casing 10 is detected by the optical sensor 70. As shown in FIG. 11, when the amount of return until the back side of the television body 20 comes into contact with the dashboard D is detected, as shown in FIG. Is stopped.

As a result, the rear surface of the television main body 20 is held by the dashboard D, and the fixing area for the television main body 20 is widened. When detecting the state in which the rear side of the television main body 20 contacts the dashboard D, the mechanical switch or the optical switch may be provided on the rear side of the television main body 20 based on an increase in the load applied to the feed drive motor 41. And may be performed based on these detection results.

When the television body 20 is held on the dashboard D, the rear side of the television body 20 is placed on the dashboard D.
, The operation of various operation buttons provided on the television body 20 is not hindered.

On the other hand, the television body 2 is provided inside the casing 10.
The basic operation when 0 returns is as follows.

First, the feed drive motor 4 of the feed mechanism 40
1 is driven in the opposite direction to the above, and the sub-casing 31 is pulled back into the casing 10. At substantially the same time, the rotation drive motor 51 is driven in the opposite direction to the above, and the television main body 20 is rotated to the side where it is tilted horizontally.

When the television body 20 is completely tilted down to the horizontal position, the sub-casing 31 has moved to the position shown in FIG. At this time, when the contact member 46 attached to the sub-casing 31 contacts the sense switch 45 attached to the casing 10, the completion of the return of the television main body 20 to the horizontal position is detected.
Thereby, the drive of the rotation drive motor 51 is stopped.

From this state, the retraction of the sub-casing 31 is further continued. The optical sensor 70 attached to the upper end surface of the sub-casing 31 takes in the modulated reflected light from the sheet-shaped position detecting member 71 attached to the casing 10 side, and the sub-casing 31 is drawn in by a predetermined amount. When this is detected, the driving of the feed drive motor 41 is stopped.

Subsequently, turning on / off the accessory key of the vehicle
The operation of moving the television body 20 out of the casing 10 based on the turning off operation will be described with reference to FIGS.

First, when the accessory key is turned off while the television body 20 is being pushed out of the casing 10 (step 101), the housing operation of the television body 20 is started (step 102).

At this time, when a memory key (not shown) is operated to store the state of the television main body 20 such as the standing angle before the storage operation of the television main body 20 is started (step 1).
03), if data is stored in the memory in the previous operation, the data is updated (step 10).
6) If no data is stored in the memory, the current data is stored in the memory (step 107).
However, if the operation of the memory key is not performed in (Step 103), the previously stored data in the memory is cleared (Step 104).

When these operations are completed, the rotation drive motor 51 is driven (step 108). At this time, as described above, the optical sensor 58 takes in the reflected light modulated by the rotation of the discrimination plate 56 (step 109), and when the detection result of the optical sensor 58 reaches a predetermined value (step 11).
0), and then the feed drive motor 41 is driven (step 111). At this time, the driving of the rotation drive motor 51 is continued.

When the retracting operation of the television main body 20 is performed by driving the rotation drive motor 51, the optical sensor 70 is modulated from the sheet-like position detecting member 71 attached to the casing 10 as described above. The reflected light is captured (step 112).

When the detection result of the optical sensor 58 reaches a predetermined value during the pull-in operation of the television body 20 (step 113), the driving of the rotation drive motor 51 is stopped (step 114). Next, when the detection result of the optical sensor 70 reaches a predetermined value (step 115), the driving of the feed drive motor 41 is stopped (step 116), and the operation of housing the television body 20 in the casing 10 ends.

Subsequently, the television body 20 is
If the accessory key is turned on (step 201) and the switch for pushing the television body 20 out is turned on (step 2).
02), it is determined whether data is stored in the memory by the previous operation (step 203).

If no data is stored in the memory, the amount of rotation by the later-rotated drive motor 51 is set to a predetermined value (step 205). On the other hand, when data is stored in the memory, the feed amount by the feed drive motor 41 and the turn amount by the turn drive motor 51 are set based on the data in the memory (step 204).

Next, when the feed drive motor 41 is driven (step 206), the optical sensor 70 is driven as described above.
Captures the modulated reflected light from the position detecting member 71 (step 207). When the optical sensor 70 reaches a predetermined value (step 208), the rotation drive motor 51 is driven (step 209), and the optical sensor 58 is simultaneously driven by the discrimination plate 56.
The reflected light modulated by the rotation of is taken in (step 210).

In this state, when the detection result of the optical sensor 70 reaches a predetermined value (step 211), the driving of the feed drive motor 41 is stopped (step 212). When the detection result of the optical sensor 58 reaches a predetermined value (step 2
13), the drive of the rotation drive motor 51 is stopped (step 214).

Next, it is determined whether or not the horizontal pulse, which is the feed amount of the feed drive motor 41 in step 204, is set (step 215). If it is determined that the pulse is set, the feed drive motor 41 is set. Are driven in reverse, and when the detection result of the optical sensor 70 reaches a predetermined value, the driving of the feed drive motor 41 is stopped (step 217).
219).

On the other hand, if it is determined in step 215 that there is no pulse setting, the presence or absence of the vibration absorption mode is determined (step 216). When the motor 41 is reversely driven and the rear side of the television body 20 contacts the dashboard D, the driving of the feed drive motor 41 is stopped (step 2).
20-222).

As described above, in the present embodiment, the operation of moving the television main body 20 into and out of the casing 10 is automatically performed based on the on / off state of the accessory key. Since the TV main body 20 is prevented from being forgotten to be returned to the inside of the casing 10, the TV main body 20 is not exposed to the scorching sun, and the liquid crystal display unit 21 can be reliably prevented from being deformed by heat.

Further, in this embodiment, the data of the amount of the television body 20 sent out from the casing 10 and the rotation angle up to a position where the television body 20 can be easily viewed is stored in the memory. Since the television set 20 is set at the predetermined position and the predetermined angle, the feed adjustment and the angle adjustment of the television main body 20 become unnecessary, and the operability is improved.

[0059]

As described above, according to the on-vehicle television of the present invention, the television body can be automatically taken in and out of the casing in synchronization with the on / off state of the accessory key of the automobile. When the accessory key is on, the television body is pushed out of the casing and the television body is rotated to a predetermined angle, and when the accessory key is off, the television body is rotated to a predetermined angle and the television body is rotated. The main body is housed in a casing.

Therefore, since forgetting to return the television body to the casing is reliably prevented, thermal deformation of the liquid crystal display portion can be reliably prevented. In addition, since the television main body is automatically moved in and out of the casing in synchronization with the on / off operation of the accessory key of the vehicle, the operability in taking the television main body in and out can be improved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of an attached state of a conventional vehicle-mounted television.

FIG. 2 is a perspective view showing a state in which a television main body is pushed out of a casing of the vehicle-mounted television in FIG. 1;

FIG. 3 is a perspective view showing a state in which the television main body of FIG. 1 has been rotated to an easy-to-view angle.

FIG. 4 is a plan view showing an example of an in-vehicle television according to the present invention.

FIG. 5 is a bottom view showing the on-vehicle television shown in FIG. 4;

FIG. 6 is a front view showing the on-vehicle television shown in FIG. 4;

FIG. 7 is a left side view showing the vehicle-mounted television shown in FIG. 4;

8 is a left side view showing a state where the television main body of the vehicle-mounted television in FIG. 4 is pushed out.

9 is a left side view showing a state where the television main body of the vehicle-mounted television in FIG. 4 starts rotating.

10 is a left side view showing a state where the television main body of the vehicle-mounted television in FIG. 4 starts rotating.

11 is a left side view showing a state where the rear side of the television body of the vehicle-mounted television in FIG. 4 is in contact with the dashboard.

FIG. 12 is a flowchart for explaining an operation in a case where the television main body of the vehicle-mounted television of FIG. 4 is returned to the inside of the casing in synchronization with the off-state of the accessory key.

FIG. 13 is a flowchart for explaining an operation when the television body of the vehicle-mounted television shown in FIG. 4 is returned to the inside of the casing in synchronization with the off state of the accessory key.

FIG. 14 is a flowchart for explaining an operation when the television body of the vehicle-mounted television of FIG. 4 is pushed out of the casing in synchronization with the ON state of an accessory key.

FIG. 15 is a flowchart for explaining an operation when the television body of the vehicle-mounted television in FIG. 4 is pushed out of the casing in synchronization with the ON state of the accessory key.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Casing 13 Opening 20 Television main body 21 Liquid crystal display part 30 Support mechanism 31 Sub-casing 40 Feed mechanism 41 Feed drive motor 45 Sense switch 46 Contact member 55 Rotation angle discrimination gear 56 Discrimination plate 58 Optical sensor 50 Rotation mechanism 70 Optical sensor 71 Position detection member

──────────────────────────────────────────────────続 き Continuing on the front page (72) Koji Takano 25-1, Nishimachi, Yamada, Kawajie, Saitama Prefecture Pioneer Corporation Kawagoe Factory (72) Keigo Nagai 25-1, Nishimachi, Yamada, Kawagoe, Saitama Pioneer Kawagoe Factory Co., Ltd. (56) References JP-A-1-218936 (JP, A) JP-A-1-123557 (JP, U) JP-A-3-119878 (JP, U) JP-A-3-6383 ( JP, U) Hikaru Hei 2-86847 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) B60R 11/02 H04N 5/64 521

Claims (1)

(57) [Claims] 1. An on-vehicle television having a television body which is held so as to be able to advance and retreat with respect to a casing embedded in a console portion of an automobile, is pushed out of the casing, and is rotated to a predetermined angle. On / off detection means for detecting an on / off state of an accessory key of an automobile; and as a result of the detection by the on / off detection means, when the accessory key is off, the television main body is housed in the casing. An in-vehicle television comprising a television main body access means.